YouTube +

Вкладки для информации, комментариев, видео, плейлиста и скачивание видео и другие функции ↴

// ==UserScript==
// @name            YouTube +
// @name:en         YouTube +
// @namespace       by
// @version         1.9
// @author          diorhc
// @description     Вкладки для информации, комментариев, видео, плейлиста и скачивание видео и другие функции ↴
// @description:en  Tabview YouTube and Download and others features ↴
// @match           https://*.youtube.com/*
// @match           *://myactivity.google.com/*
// @include         *://www.youtube.com/feed/history/*
// @include         https://www.youtube.com
// @include         *://*.youtube.com/**
// @exclude         *://accounts.youtube.com/*
// @exclude         *://www.youtube.com/live_chat_replay*
// @exclude         *://www.youtube.com/persist_identity*
// @exclude         /^https?://\w+\.youtube\.com\/live_chat.*$/
// @exclude         /^https?://\S+\.(txt|png|jpg|jpeg|gif|xml|svg|manifest|log|ini)[^\/]*$/
// @icon            https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @license         MIT
// @grant           GM_xmlhttpRequest
// ==/UserScript==


if (typeof trustedTypes !== 'undefined' && trustedTypes.defaultPolicy === null) {
  let s = s => s;
  trustedTypes.createPolicy('default', { createHTML: s, createScriptURL: s, createScript: s });
}

const defaultPolicy = (typeof trustedTypes !== 'undefined' && trustedTypes.defaultPolicy) || { createHTML: s => s };
function createHTML(s) {
  return defaultPolicy.createHTML(s);
}

let trustHTMLErr = null;
try {
  document.createElement('div').innerHTML = createHTML('1');
} catch (e) {
  trustHTMLErr = e;
}

if (trustHTMLErr) {
  console.log(`trustHTMLErr`, trustHTMLErr);
  trustHTMLErr(); // exit userscript
}


// -----------------------------------------------------------------------------------------------------------------------------

const VAL_ROUNDED_A1 = 12;

const executionScript = (communicationKey) => {

  const DEBUG_5084 = false;


  if (typeof trustedTypes !== 'undefined' && trustedTypes.defaultPolicy === null) {
    let s = s => s;
    trustedTypes.createPolicy('default', { createHTML: s, createScriptURL: s, createScript: s });
  }

  const defaultPolicy = (typeof trustedTypes !== 'undefined' && trustedTypes.defaultPolicy) || { createHTML: s => s };
  function createHTML(s) {
    return defaultPolicy.createHTML(s);
  }

  let trustHTMLErr = null;
  try {
    document.createElement('div').innerHTML = createHTML('1');
  } catch (e) {
    trustHTMLErr = e;
  }

  if (trustHTMLErr) {
    console.log(`trustHTMLErr`, trustHTMLErr);
    trustHTMLErr(); // exit userscript
  }

  try {

    let executionFinished = 0;

    if (typeof CustomElementRegistry === 'undefined') return;
    if (CustomElementRegistry.prototype.define000) return;
    if (typeof CustomElementRegistry.prototype.define !== 'function') return;

    /** @type {HTMLElement} */
    const HTMLElement_ = HTMLElement.prototype.constructor;

    /**
     *  @param {Element} elm
     * @param {string} selector
     * @returns {Element | null}
     *  */
    const qsOne = (elm, selector) => {
      return HTMLElement_.prototype.querySelector.call(elm, selector);
    }

    /**
     *  @param {Element} elm
     * @param {string} selector
     * @returns {NodeListOf<Element>}
     *  */
    const qsAll = (elm, selector) => {
      return HTMLElement_.prototype.querySelectorAll.call(elm, selector);
    }

    const pdsBaseDF = Object.getOwnPropertyDescriptors(DocumentFragment.prototype);

    Object.defineProperties(DocumentFragment.prototype, {
      replaceChildren000: pdsBaseDF.replaceChildren,
    });

    const pdsBaseNode = Object.getOwnPropertyDescriptors(Node.prototype);
    // console.log(pdsBaseElement.setAttribute, pdsBaseElement.getAttribute)

    Object.defineProperties(Node.prototype, {
      appendChild000: pdsBaseNode.appendChild,
      insertBefore000: pdsBaseNode.insertBefore
    });

    // class BaseElement extends Element{

    // }
    const pdsBaseElement = Object.getOwnPropertyDescriptors(Element.prototype);
    // console.log(pdsBaseElement.setAttribute, pdsBaseElement.getAttribute)

    Object.defineProperties(Element.prototype, {
      setAttribute000: pdsBaseElement.setAttribute,
      getAttribute000: pdsBaseElement.getAttribute,
      hasAttribute000: pdsBaseElement.hasAttribute,
      removeAttribute000: pdsBaseElement.removeAttribute,
      querySelector000: pdsBaseElement.querySelector,
      replaceChildren000: pdsBaseElement.replaceChildren
    });

    Element.prototype.setAttribute111 = function (p, v) {
      v = `${v}`;
      if (this.getAttribute000(p) === v) return;
      this.setAttribute000(p, v)
    }

    Element.prototype.incAttribute111 = function (p) {
      let v = +this.getAttribute000(p) || 0;
      v = v > 1e9 ? v + 1 : 9;
      this.setAttribute000(p, `${v}`);
      return v;
    }

    Element.prototype.assignChildren111 = function (previousSiblings, node, nextSiblings) {
      // assume all previousSiblings, node, and nextSiblings are on the page
      //  -> only remove triggering is needed
      let nodeList = [];
      for (let t = this.firstChild; t instanceof Node; t = t.nextSibling) {
        if (t === node) continue;
        nodeList.push(t);
      }

      inPageRearrange = true;
      if (node.parentNode === this) {
        let fm = new DocumentFragment();
        if (nodeList.length > 0) {
          fm.replaceChildren000(...nodeList);
          // nodeList.length = 0;
        }
        // nodeList = null;
        if (previousSiblings && previousSiblings.length > 0) {
          fm.replaceChildren000(...previousSiblings);
          this.insertBefore000(fm, node);
        }
        if (nextSiblings && nextSiblings.length > 0) {
          fm.replaceChildren000(...nextSiblings);
          this.appendChild000(fm);
        }
        fm.replaceChildren000();
        fm = null;
      } else {
        if (!previousSiblings) previousSiblings = [];
        if (!nextSiblings) nextSiblings = [];
        this.replaceChildren000(...previousSiblings, node, ...nextSiblings);
      }
      inPageRearrange = false;
      if (nodeList.length > 0) {
        for (const t of nodeList) {
          if (t instanceof Element && t.isConnected === false) t.remove(); // remove triggering
        }
      }
      nodeList.length = 0;
      nodeList = null;
    }


    // ==============================================================================================================================================================================================================================================================================

    const DISABLE_FLAGS_SHADYDOM_FREE = true;

    /**
     * 
     * Minified Code from https://greasyfork.org/en/scripts/475632-ytconfighacks/code (ytConfigHacks)
     * Date: 2024.04.17
     * Minifier: https://www.toptal.com/developers/javascript-minifier
     * 
     */
    (() => {
      let e = "undefined" != typeof unsafeWindow ? unsafeWindow : this instanceof Window ?
        this : window; if (!e._ytConfigHacks) {
          let t = 4; class n extends Set {
            add(e) {
              if (t <= 0) return console.warn(
                "yt.config_ is already applied on the page."); "function" == typeof e && super.add(e)
            }
          } let a = (async () => { })()
            .constructor, i = e._ytConfigHacks = new n, l = () => { let t = e.ytcsi.originalYtcsi; t && (e.ytcsi = t, l = null) },
            c = null, o = () => {
              if (t >= 1) {
                let n = (e.yt || 0).config_ || (e.ytcfg || 0).data_ || 0; if ("string" == typeof n.
                  INNERTUBE_API_KEY && "object" == typeof n.EXPERIMENT_FLAGS) for (let a of (--t <= 0 && l && l(), c = !0, i)) a(n)
              }
            }, f = 1,
            d = t => {
              if (t = t || e.ytcsi) return e.ytcsi = new Proxy(t, { get: (e, t, n) => "originalYtcsi" === t ? e : (o(), c && --f <= 0 && l && l(), e[t]) })
                , !0
            }; d() || Object.defineProperty(e, "ytcsi", {
              get() { }, set: t => (t && (delete e.ytcsi, d(t)), !0), enumerable: !1, configurable: !0
            }); let { addEventListener: s, removeEventListener: y } = Document.prototype; function r(t) {
              o(),
                t && e.removeEventListener("DOMContentLoaded", r, !1)
            } new a(e => {
              if ("undefined" != typeof AbortSignal) s.call(document,
                "yt-page-data-fetched", e, { once: !0 }), s.call(document, "yt-navigate-finish", e, { once: !0 }), s.call(document, "spfdone", e,
                  { once: !0 }); else {
                let t = () => {
                  e(), y.call(document, "yt-page-data-fetched", t, !1), y.call(document, "yt-navigate-finish", t, !1),
                    y.call(document, "spfdone", t, !1)
                }; s.call(document, "yt-page-data-fetched", t, !1), s.call(document, "yt-navigate-finish", t, !1),
                  s.call(document, "spfdone", t, !1)
              }
            }).then(o), new a(e => {
              if ("undefined" != typeof AbortSignal) s.call(document, "yt-action", e,
                { once: !0, capture: !0 }); else { let t = () => { e(), y.call(document, "yt-action", t, !0) }; s.call(document, "yt-action", t, !0) }
            }).then(o),
              a.resolve().then(() => { "loading" !== document.readyState ? r() : e.addEventListener("DOMContentLoaded", r, !1) })
        }
    })();

    let configOnce = false;
    window._ytConfigHacks.add((config_) => {
      if (configOnce) return;
      configOnce = true;

      const EXPERIMENT_FLAGS = config_.EXPERIMENT_FLAGS || 0;
      const EXPERIMENTS_FORCED_FLAGS = config_.EXPERIMENTS_FORCED_FLAGS || 0;
      for (const flags of [EXPERIMENT_FLAGS, EXPERIMENTS_FORCED_FLAGS]) {
        if (flags) {
          // flags.kevlar_watch_metadata_refresh_no_old_secondary_data = false;
          // flags.live_chat_overflow_hide_chat = false;
          flags.web_watch_chat_hide_button_killswitch = false;
          flags.web_watch_theater_chat = false; // for re-openable chat (ytd-watch-flexy's liveChatCollapsed is always undefined)
          flags.suppress_error_204_logging = true;
          flags.kevlar_watch_grid = false;  // A/B testing for watch grid

          if (DISABLE_FLAGS_SHADYDOM_FREE) {
            flags.enable_shadydom_free_scoped_node_methods = false;
            flags.enable_shadydom_free_scoped_query_methods = false;
            flags.enable_shadydom_free_scoped_readonly_properties_batch_one = false;
            flags.enable_shadydom_free_parent_node = false;
            flags.enable_shadydom_free_children = false;
            flags.enable_shadydom_free_last_child = false;
          }
        }
      }

    });

    // ==============================================================================================================================================================================================================================================================================


    /* globals WeakRef:false */

    /** @type {(o: Object | null) => WeakRef | null} */
    const mWeakRef = typeof WeakRef === 'function' ? (o => o ? new WeakRef(o) : null) : (o => o || null); // typeof InvalidVar == 'undefined'

    /** @type {(wr: Object | null) => Object | null} */
    const kRef = (wr => (wr && wr.deref) ? wr.deref() : wr);


    /** @type {globalThis.PromiseConstructor} */
    const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.

    const delayPn = delay => new Promise((fn => setTimeout(fn, delay)));

    const insp = o => o ? (o.polymerController || o.inst || o || 0) : (o || 0);

    const setTimeout_ = setTimeout.bind(window);

    const PromiseExternal = ((resolve_, reject_) => {
      const h = (resolve, reject) => { resolve_ = resolve; reject_ = reject };
      return class PromiseExternal extends Promise {
        constructor(cb = h) {
          super(cb);
          if (cb === h) {
            /** @type {(value: any) => void} */
            this.resolve = resolve_;
            /** @type {(reason?: any) => void} */
            this.reject = reject_;
          }
        }
      };
    })();

    // ------------------------------------------------------------------------ nextBrowserTick ------------------------------------------------------------------------
    var nextBrowserTick = void 0 !== nextBrowserTick && nextBrowserTick.version >= 2 ? nextBrowserTick : (() => {
      "use strict"; const e = "undefined" != typeof self ? self : "undefined" != typeof global ? global : this;
      let t = !0; if (! function n(s) {
        return s ? t = !1 : e.postMessage && !e.importScripts && e.addEventListener ? (e.addEventListener("message", n, !1), e.postMessage("$$$", "*"), e.removeEventListener("message", n, !1), t) : void 0
      }()) return void console.warn("Your browser environment cannot use nextBrowserTick");
      const n = (async () => { })().constructor; let s = null;
      const o = new Map, { floor: r, random: i } = Math; let l;
      do { l = `$$nextBrowserTick$$${(i() + 8).toString().slice(2)}$$` } while (l in e); const a = l,
        c = a.length + 9;
      e[a] = 1;
      e.addEventListener("message", (e => {
        if (0 !== o.size) {
          const t = (e || 0).data; if ("string" == typeof t && t.length === c && e.source === (e.target || 1)) {
            const e = o.get(t);
            e && ("p" === t[0] && (s = null), o.delete(t), e())
          }
        }
      }), !1); const d = (t = o) => {
        if (t === o) {
          if (s) return s; let t;
          do { t = `p${a}${r(314159265359 * i() + 314159265359).toString(36)}` } while (o.has(t)); return s = new n((e => { o.set(t, e) })), e.postMessage(t, "*"), t = null, s
        } {
          let n;
          do { n = `f${a}${r(314159265359 * i() + 314159265359).toString(36)}` } while (o.has(n));
          o.set(n, t), e.postMessage(n, "*")
        }
      }; return d.version = 2, d
    })();

    // ------------------------------------------------------------------------ nextBrowserTick ------------------------------------------------------------------------

    const isPassiveArgSupport = (typeof IntersectionObserver === 'function');
    const bubblePassive = isPassiveArgSupport ? { capture: false, passive: true } : false;
    const capturePassive = isPassiveArgSupport ? { capture: true, passive: true } : true;



    class Attributer {
      constructor(list) {
        this.list = list;
        this.flag = 0;
      }
      makeString() {
        let k = 1;
        let s = '';
        let i = 0;
        while (this.flag >= k) {
          if (this.flag & k) {
            s += this.list[i];
          }
          i++;
          k <<= 1;
        }
        return s;
      }
    }

    const mLoaded = new Attributer('icp');

    const wrSelfMap = new WeakMap();

    /** @type {Object.<string, Element | null>} */
    const elements = new Proxy({
      related: null,
      comments: null,
      infoExpander: null,
    }, {
      get(target, prop) {
        return kRef(target[prop]);
      },
      set(target, prop, value) {
        if (value) {
          let wr = wrSelfMap.get(value);
          if (!wr) {
            wr = mWeakRef(value);
            wrSelfMap.set(value, wr);
          }
          target[prop] = wr;
        } else {
          target[prop] = null;
        }
        return true;
      }
    });
    const getMainInfo = () => {
      const infoExpander = elements.infoExpander;
      if (!infoExpander) return null;
      const mainInfo = infoExpander.matches('[tyt-main-info]') ? infoExpander : infoExpander.querySelector000('[tyt-main-info]');
      return mainInfo || null;
    }
    const asyncWrap = (asyncFn) => {
      return () => {
        Promise.resolve().then(asyncFn);
      };
    }


    let pageType = null;

    let pageLang = 'en';
    const langWords = {
      'en': {
        //'share':'Share',
        'info': 'Info',
        'videos': 'Videos',
        'playlist': 'Playlist'
      },
      'jp': {
        //'share':'共有',
        'info': '情報',
        'videos': '動画',
        'playlist': '再生リスト'
      },
      'tw': {
        //'share':'分享',
        'info': '資訊',
        'videos': '影片',
        'playlist': '播放清單'
      },
      'cn': {
        //'share':'分享',
        'info': '资讯',
        'videos': '视频',
        'playlist': '播放列表'
      },
      'du': {
        //'share':'Teilen',
        'info': 'Info',
        'videos': 'Videos',
        'playlist': 'Playlist'
      },
      'fr': {
        //'share':'Partager',
        'info': 'Info',
        'videos': 'Vidéos',
        'playlist': 'Playlist'
      },
      'kr': {
        //'share':'공유',
        'info': '정보',
        'videos': '동영상',
        'playlist': '재생목록'
      },
      'ru': {
        //'share':'Поделиться',
        'info': 'Описание',
        'videos': 'Видео',
        'playlist': 'Плейлист'
      }
    };

    const svgComments = `<path d="M80 27H12A12 12 90 0 0 0 39v42a12 12 90 0 0 12 12h12v20a2 2 90 0 0 3.4 2L47 93h33a12 
  12 90 0 0 12-12V39a12 12 90 0 0-12-12zM20 47h26a2 2 90 1 1 0 4H20a2 2 90 1 1 0-4zm52 28H20a2 2 90 1 1 0-4h52a2 2 90 
  1 1 0 4zm0-12H20a2 2 90 1 1 0-4h52a2 2 90 1 1 0 4zm36-58H40a12 12 90 0 0-12 12v6h52c9 0 16 7 16 16v42h0v4l7 7a2 2 90 
  0 0 3-1V71h2a12 12 90 0 0 12-12V17a12 12 90 0 0-12-12z"/>`.trim();

    const svgVideos = `<path d="M89 10c0-4-3-7-7-7H7c-4 0-7 3-7 7v70c0 4 3 7 7 7h75c4 0 7-3 7-7V10zm-62 2h13v10H27V12zm-9 
  66H9V68h9v10zm0-56H9V12h9v10zm22 56H27V68h13v10zm-3-25V36c0-2 2-3 4-2l12 8c2 1 2 4 0 5l-12 8c-2 1-4 0-4-2zm25 
  25H49V68h13v10zm0-56H49V12h13v10zm18 56h-9V68h9v10zm0-56h-9V12h9v10z"/>`.trim();

    const svgInfo = `<path d="M30 0C13.3 0 0 13.3 0 30s13.3 30 30 30 30-13.3 30-30S46.7 0 30 0zm6.2 46.6c-1.5.5-2.6 
  1-3.6 1.3a10.9 10.9 0 0 1-3.3.5c-1.7 0-3.3-.5-4.3-1.4a4.68 4.68 0 0 1-1.6-3.6c0-.4.2-1 .2-1.5a20.9 20.9 90 0 1 
  .3-2l2-6.8c.1-.7.3-1.3.4-1.9a8.2 8.2 90 0 0 .3-1.6c0-.8-.3-1.4-.7-1.8s-1-.5-2-.5a4.53 4.53 0 0 0-1.6.3c-.5.2-1 
  .2-1.3.4l.6-2.1c1.2-.5 2.4-1 3.5-1.3s2.3-.6 3.3-.6c1.9 0 3.3.6 4.3 1.3s1.5 2.1 1.5 3.5c0 .3 0 .9-.1 1.6a10.4 10.4 
  90 0 1-.4 2.2l-1.9 6.7c-.2.5-.2 1.1-.4 1.8s-.2 1.3-.2 1.6c0 .9.2 1.6.6 1.9s1.1.5 2.1.5a6.1 6.1 90 0 0 1.5-.3 9 9 90 
  0 0 1.4-.4l-.6 2.2zm-3.8-35.2a1 1 0 010 8.6 1 1 0 010-8.6z"/>`.trim();

    const svgPlayList = `<path d="M0 3h12v2H0zm0 4h12v2H0zm0 4h8v2H0zm16 0V7h-2v4h-4v2h4v4h2v-4h4v-2z"/>`.trim();

    const svgDiag1 = `<svg stroke="currentColor" fill="none"><path d="M8 2h2v2M7 5l3-3m-6 8H2V8m0 2l3-3"/></svg>`;
    const svgDiag2 = `<svg stroke="currentColor" fill="none"><path d="M7 3v2h2M7 5l3-3M5 9V7H3m-1 3l3-3"/></svg>`;


    const getGMT = () => {
      let m = new Date('2023-01-01T00:00:00Z');
      return m.getDate() === 1 ? `+${m.getHours()}` : `-${24 - m.getHours()}`;
    };

    function getWord(tag) {
      return langWords[pageLang][tag] || langWords['en'][tag] || '';
    }

    const svgElm = (w, h, vw, vh, p, m) => `<svg${m ? ` class=${m}` : ''} width="${w}" height="${h}" viewBox="0 0 ${vw} ${vh}" preserveAspectRatio="xMidYMid meet">${p}</svg>`

    let hiddenTabsByUserCSS = 0;

    function getTabsHTML() {

      const sTabBtnVideos = `${svgElm(16, 16, 90, 90, svgVideos)}<span>${getWord('videos')}</span>`;
      const sTabBtnInfo = `${svgElm(16, 16, 60, 60, svgInfo)}<span>${getWord('info')}</span>`;
      const sTabBtnPlayList = `${svgElm(16, 16, 20, 20, svgPlayList)}<span>${getWord('playlist')}</span>`;

      let str1 = `
        <paper-ripple class="style-scope yt-icon-button">
            <div id="background" class="style-scope paper-ripple" style="opacity:0;"></div>
            <div id="waves" class="style-scope paper-ripple"></div>
        </paper-ripple>
        `;

      let str_fbtns = `
    <div class="font-size-right">
    <div class="font-size-btn font-size-plus" tyt-di="8rdLQ">
    <svg width="12" height="12" viewbox="0 0 50 50" preserveAspectRatio="xMidYMid meet" 
    stroke="currentColor" stroke-width="6" stroke-linecap="round" vector-effect="non-scaling-size">
      <path d="M12 25H38M25 12V38"/>
    </svg>
    </div><div class="font-size-btn font-size-minus" tyt-di="8rdLQ">
    <svg width="12" height="12" viewbox="0 0 50 50" preserveAspectRatio="xMidYMid meet"
    stroke="currentColor" stroke-width="6" stroke-linecap="round" vector-effect="non-scaling-size">
      <path d="M12 25h26"/>
    </svg>
    </div>
    </div>
    `.replace(/[\r\n]+/g, '');

      const str_tabs = [
        `<a id="tab-btn1" tyt-di="q9Kjc" tyt-tab-content="#tab-info" class="tab-btn${(hiddenTabsByUserCSS & 1) === 1 ? ' tab-btn-hidden' : ''}">${sTabBtnInfo}${str1}${str_fbtns}</a>`,
        `<a id="tab-btn3" tyt-di="q9Kjc" tyt-tab-content="#tab-comments" class="tab-btn${(hiddenTabsByUserCSS & 2) === 2 ? ' tab-btn-hidden' : ''}">${svgElm(16, 16, 120, 120, svgComments)}<span id="tyt-cm-count"></span>${str1}${str_fbtns}</a>`,
        `<a id="tab-btn4" tyt-di="q9Kjc" tyt-tab-content="#tab-videos" class="tab-btn${(hiddenTabsByUserCSS & 4) === 4 ? ' tab-btn-hidden' : ''}">${sTabBtnVideos}${str1}${str_fbtns}</a>`,
        `<a id="tab-btn5" tyt-di="q9Kjc" tyt-tab-content="#tab-list" class="tab-btn tab-btn-hidden">${sTabBtnPlayList}${str1}${str_fbtns}</a>`
      ].join('');

      let addHTML = `
        <div id="right-tabs">
            <tabview-view-pos-thead></tabview-view-pos-thead>
            <header>
                <div id="material-tabs">
                    ${str_tabs}
                </div>
            </header>
            <div class="tab-content">
                <div id="tab-info" class="tab-content-cld tab-content-hidden" tyt-hidden userscript-scrollbar-render></div>
                <div id="tab-comments" class="tab-content-cld tab-content-hidden" tyt-hidden userscript-scrollbar-render></div>
                <div id="tab-videos" class="tab-content-cld tab-content-hidden" tyt-hidden userscript-scrollbar-render></div>
                <div id="tab-list" class="tab-content-cld tab-content-hidden" tyt-hidden userscript-scrollbar-render></div>
            </div>
        </div>
        `;

      return addHTML;

    }


    function getLang() {

      let lang = 'en';
      let htmlLang = ((document || 0).documentElement || 0).lang || '';
      switch (htmlLang) {
        case 'en':
        case 'en-GB':
          lang = 'en';
          break;
        case 'de':
        case 'de-DE':
          lang = 'du';
          break;
        case 'fr':
        case 'fr-CA':
        case 'fr-FR':
          lang = 'fr';
          break;
        case 'zh-Hant':
        case 'zh-Hant-HK':
        case 'zh-Hant-TW':
          lang = 'tw';
          break;
        case 'zh-Hans':
        case 'zh-Hans-CN':
          lang = 'cn';
          break;
        case 'ja':
        case 'ja-JP':
          lang = 'jp';
          break;
        case 'ko':
        case 'ko-KR':
          lang = 'kr';
          break;
        case 'ru':
        case 'ru-RU':
          lang = 'ru';
          break;
        default:
          lang = 'en';
      }

      return lang;

    }

    function getLangForPage() {

      let lang = getLang();

      if (langWords[lang]) pageLang = lang; else pageLang = 'en';

    }

    /** @type {Object.<string, number>} */
    const _locks = {}

    const lockGet = new Proxy(_locks,
      {
        get(target, prop) {
          return (target[prop] || 0);
        },
        set(target, prop, val) {
          return true;
        }
      }
    );

    const lockSet = new Proxy(_locks,
      {
        get(target, prop) {
          if (target[prop] > 1e9) target[prop] = 9;
          return (target[prop] = (target[prop] || 0) + 1);
        },
        set(target, prop, val) {
          return true;
        }
      }
    );

    // note: xxxxxxxxxAsyncLock is not expected for calling multiple time in a short period.
    //       it is just to split the process into microTasks.

    const videosElementProvidedPromise = new PromiseExternal();
    const navigateFinishedPromise = new PromiseExternal();

    let isRightTabsInserted = false;
    const rightTabsProvidedPromise = new PromiseExternal();

    const infoExpanderElementProvidedPromise = new PromiseExternal();

    const cmAttr = document.createComment('1');
    const cmAttrStack = [];
    const cmAttrStackPush = (f) => {
      cmAttrStack.push(f);
      cmAttr.data = `${(cmAttr.data & 7) + 1}`;
    }
    const cmAttrObs = new MutationObserver(() => {
      const l = cmAttrStack.length;
      for (let i = 0; i < l; i++) {
        cmAttrStack[i]();
      }
    });
    cmAttrObs.observe(cmAttr, { characterData: true });


    const funcCanCollapse = function (s) {
      // if (!s) return;
      const content = this.content || this.$.content;
      this.canToggle = this.shouldUseNumberOfLines && (this.alwaysCollapsed || this.collapsed || (this.isToggled === false))
        ? this.alwaysToggleable || this.isToggled || (content && content.offsetHeight < content.scrollHeight)
        : this.alwaysToggleable || this.isToggled || (content && content.scrollHeight > this.collapsedHeight)
    };

    const aoChatAttrChangeFn = async (lockId) => {
      if (lockGet['aoChatAttrAsyncLock'] !== lockId) return;

      const chatElm = elements.chat;
      const ytdFlexyElm = elements.flexy;
      // console.log(1882, chatElm, ytdFlexyElm)
      if (chatElm && ytdFlexyElm) {

        const isChatCollapsed = chatElm.hasAttribute000('collapsed');
        if (isChatCollapsed) {

          ytdFlexyElm.setAttribute111('tyt-chat-collapsed', '')
        } else {

          ytdFlexyElm.removeAttribute000('tyt-chat-collapsed')
        }

        ytdFlexyElm.setAttribute111('tyt-chat', isChatCollapsed ? '-' : '+');

      }
    };

    // const aoInfoAttrChangeFn = async (lockId) => {
    //   if (lockGet['aoInfoAttrAsyncLock'] !== lockId) return;
    // };

    // const zoInfoAttrChangeFn = async (lockId) => {
    //   if (lockGet['zoInfoAttrAsyncLock'] !== lockId) return;
    // };

    const aoPlayListAttrChangeFn = async (lockId) => {
      if (lockGet['aoPlayListAttrAsyncLock'] !== lockId) return;

      const playlistElm = elements.playlist;
      const ytdFlexyElm = elements.flexy;
      // console.log(1882, chatElm, ytdFlexyElm)
      if (playlistElm && ytdFlexyElm) {
        if (playlistElm.hasAttribute000('collapsed')) {
          ytdFlexyElm.removeAttribute000('tyt-playlist-expanded')
        } else {

          ytdFlexyElm.setAttribute111('tyt-playlist-expanded', '')
        }
      } else if (ytdFlexyElm) {

        ytdFlexyElm.removeAttribute000('tyt-playlist-expanded')
      }
    };

    const aoChat = new MutationObserver(() => {
      Promise.resolve(lockSet['aoChatAttrAsyncLock']).then(aoChatAttrChangeFn).catch(console.warn);
    });

    // const aoInfo = new MutationObserver(()=>{
    //   Promise.resolve(lockSet['aoInfoAttrAsyncLock']).then(aoInfoAttrChangeFn).catch(console.warn);
    // });

    // const zoInfo = new MutationObserver(()=>{
    //   Promise.resolve(lockSet['zoInfoAttrAsyncLock']).then(zoInfoAttrChangeFn).catch(console.warn);
    // });

    const aoPlayList = new MutationObserver(() => {
      Promise.resolve(lockSet['aoPlayListAttrAsyncLock']).then(aoPlayListAttrChangeFn).catch(console.warn);
    });

    const aoComment = new MutationObserver(async (mutations) => {
      const commentsArea = elements.comments;
      const ytdFlexyElm = elements.flexy;

      //tyt-comments-video-id //tyt-comments-data-status // hidden
      if (!commentsArea) return;
      let bfHidden = false;
      let bfCommentsVideoId = false;
      let bfCommentDisabled = false;
      for (const mutation of mutations) {
        if (mutation.attributeName === 'hidden' && mutation.target === commentsArea) {
          bfHidden = true;
        } else if (mutation.attributeName === 'tyt-comments-video-id' && mutation.target === commentsArea) {
          bfCommentsVideoId = true;
        } else if (mutation.attributeName === 'tyt-comments-data-status' && mutation.target === commentsArea) {
          bfCommentDisabled = true;
        }
      }

      if (bfHidden) {

        if (!commentsArea.hasAttribute000('hidden')) {
          Promise.resolve(commentsArea).then(eventMap['settingCommentsVideoId']).catch(console.warn);
        }

        Promise.resolve(lockSet['removeKeepCommentsScrollerLock']).then(removeKeepCommentsScroller).catch(console.warn);
      }

      if ((bfHidden || bfCommentsVideoId || bfCommentDisabled) && ytdFlexyElm) {

        const commentsDataStatus = +commentsArea.getAttribute000('tyt-comments-data-status');
        if (commentsDataStatus === 2) {
          ytdFlexyElm.setAttribute111('tyt-comment-disabled', '')
        } else if (commentsDataStatus === 1) {
          ytdFlexyElm.removeAttribute000('tyt-comment-disabled')
        }

        Promise.resolve(lockSet['checkCommentsShouldBeHiddenLock']).then(eventMap['checkCommentsShouldBeHidden']).catch(console.warn);


        const lockId = lockSet['rightTabReadyLock01'];
        await rightTabsProvidedPromise.then();
        if (lockGet['rightTabReadyLock01'] !== lockId) return;

        if (elements.comments !== commentsArea) return;
        if (commentsArea.isConnected === false) return;
        // console.log(7932, 'comments');

        if (commentsArea.closest('#tab-comments')) {
          const shouldTabVisible = !commentsArea.closest('[hidden]');
          document.querySelector('[tyt-tab-content="#tab-comments"]').classList.toggle('tab-btn-hidden', !shouldTabVisible);
        }

      }


    });

    const ioComment = new IntersectionObserver((entries) => {

      for (const entry of entries) {
        const target = entry.target;
        const cnt = insp(target);
        if (entry.isIntersecting && target instanceof HTMLElement_ && typeof cnt.calculateCanCollapse === 'function') {
          lockSet['removeKeepCommentsScrollerLock'];
          cnt.calculateCanCollapse(true);
          target.setAttribute111('io-intersected', '');
          const ytdFlexyElm = elements.flexy;
          if (ytdFlexyElm && !ytdFlexyElm.hasAttribute000('keep-comments-scroller')) {
            ytdFlexyElm.setAttribute111('keep-comments-scroller', '');
          }
        } else if (target.hasAttribute000('io-intersected')) {

          target.removeAttribute000('io-intersected');
        }
      }

    }, {
      threshold: [0],
      rootMargin: "32px" // enlarging viewport for getting intersection earlier
    });


    let bFixForResizedTabLater = false;
    let lastRoRightTabsWidth = 0;
    const roRightTabs = new ResizeObserver((entries) => {
      const entry = entries[entries.length - 1];
      const width = Math.round(entry.borderBoxSize.inlineSize);
      if (lastRoRightTabsWidth !== width) {
        lastRoRightTabsWidth = width;
        if ((tabAStatus & 2) === 2) {
          bFixForResizedTabLater = false;
          Promise.resolve(1).then(eventMap['fixForTabDisplay']);
        } else {
          bFixForResizedTabLater = true;
        }
      }
      // console.log('resize')
    });

    const switchToTab = (activeLink) => {

      if (typeof activeLink === 'string') {
        activeLink = document.querySelector(`a[tyt-tab-content="${activeLink}"]`) || null;
      }

      const ytdFlexyElm = elements.flexy;


      const links = document.querySelectorAll('#material-tabs a[tyt-tab-content]');

      //console.log(701, activeLink)

      for (const link of links) {
        const content = document.querySelector(link.getAttribute000('tyt-tab-content'));
        if (link && content) {
          if (link !== activeLink) {
            link.classList.remove("active");
            content.classList.add("tab-content-hidden");
            if (!content.hasAttribute000("tyt-hidden")) {
              content.setAttribute111("tyt-hidden", ""); // for https://greasyfork.org/en/scripts/456108
            }
          } else {
            link.classList.add("active");
            if (content.hasAttribute000("tyt-hidden")) {
              content.removeAttribute000("tyt-hidden"); // for https://greasyfork.org/en/scripts/456108
            }
            content.classList.remove("tab-content-hidden");
          }
        }
      }

      const switchingTo = activeLink ? activeLink.getAttribute000('tyt-tab-content') : '';
      if (switchingTo) {
        lastTab = lastPanel = switchingTo
      }

      if (ytdFlexyElm.getAttribute000('tyt-chat') === '') ytdFlexyElm.removeAttribute000('tyt-chat');
      ytdFlexyElm.setAttribute111('tyt-tab', switchingTo);

      if (switchingTo) {
        bFixForResizedTabLater = false;
        Promise.resolve(0).then(eventMap['fixForTabDisplay']);
      }

    }

    let tabAStatus = 0;
    const calculationFn = (r = 0, flag) => {
      const ytdFlexyElm = elements.flexy;
      if (!ytdFlexyElm) return r;
      if (flag & 1) {
        r |= 1;
        if (!ytdFlexyElm.hasAttribute000('theater')) r -= 1;
      }
      if (flag & 2) {
        r |= 2;
        if (!ytdFlexyElm.getAttribute000('tyt-tab')) r -= 2;
      }
      if (flag & 4) {
        r |= 4;
        if (ytdFlexyElm.getAttribute000('tyt-chat') !== '-') r -= 4;
      }
      if (flag & 8) {
        r |= 8;
        if (ytdFlexyElm.getAttribute000('tyt-chat') !== '+') r -= 8;
      }
      if (flag & 16) {
        r |= 16;
        if (!ytdFlexyElm.hasAttribute000('is-two-columns_')) r -= 16;
      }
      if (flag & 32) {
        r |= 32;
        if (!ytdFlexyElm.hasAttribute000('tyt-egm-panel_')) r -= 32;
      }
      if (flag & 64) {

        r |= 64;
        if (!document.fullscreenElement) r -= 64;
      }

      if (flag & 128) {
        r |= 128;
        if (!ytdFlexyElm.hasAttribute000('tyt-playlist-expanded')) r -= 128;
      }
      return r;

    }

    function isTheater() {
      const ytdFlexyElm = elements.flexy;
      return (ytdFlexyElm && ytdFlexyElm.hasAttribute000('theater'))
    }

    function ytBtnSetTheater() {
      if (!isTheater()) {
        const sizeBtn = document.querySelector('ytd-watch-flexy #ytd-player button.ytp-size-button')
        if (sizeBtn) sizeBtn.click();
      }
    }

    function ytBtnCancelTheater() {
      if (isTheater()) {
        const sizeBtn = document.querySelector('ytd-watch-flexy #ytd-player button.ytp-size-button')
        if (sizeBtn) sizeBtn.click();
      }
    }


    function ytBtnExpandChat() {
      let button = document.querySelector('ytd-live-chat-frame#chat[collapsed] > .ytd-live-chat-frame#show-hide-button')
      if (button) {
        button =
          button.querySelector000('div.yt-spec-touch-feedback-shape') ||
          button.querySelector000('ytd-toggle-button-renderer');
        if (button) button.click();
      }
    }

    function ytBtnCollapseChat() {
      let button = document.querySelector('ytd-live-chat-frame#chat:not([collapsed]) > .ytd-live-chat-frame#show-hide-button')
      if (button) {
        button =
          button.querySelector000('div.yt-spec-touch-feedback-shape') ||
          button.querySelector000('ytd-toggle-button-renderer');
        if (button) button.click();
      }
    }

    function ytBtnEgmPanelCore(arr) {

      if (!arr) return
      if (!('length' in arr)) arr = [arr]

      const ytdFlexyElm = elements.flexy;
      if (!ytdFlexyElm) return;

      let actions = []

      for (const entry of arr) {

        if (!entry) continue;

        let panelId = entry.panelId

        let toHide = entry.toHide
        let toShow = entry.toShow

        if (toHide === true && !toShow) {

          actions.push({
            "changeEngagementPanelVisibilityAction": {
              "targetId": panelId,
              "visibility": "ENGAGEMENT_PANEL_VISIBILITY_HIDDEN"
            }
          })

        } else if (toShow === true && !toHide) {

          actions.push({
            "showEngagementPanelEndpoint": {
              "panelIdentifier": panelId
            }
          })

        }

        if (actions.length > 0) {
          const cnt = insp(ytdFlexyElm);

          cnt.resolveCommand(
            {
              "signalServiceEndpoint": {
                "signal": "CLIENT_SIGNAL",
                "actions": actions
              }
            },

            {},
            false);
        }
        actions = null;

      }
    }

    /*
    function ytBtnCloseEngagementPanel( s) {
      //ePanel.setAttribute('visibility',"ENGAGEMENT_PANEL_VISIBILITY_HIDDEN");
   
      let panelId = s.getAttribute('target-id')
      scriptletDeferred.debounce(() => {
        document.dispatchEvent(new CustomEvent('tyt-engagement-panel-visibility-change', {
          detail: {
            panelId,
            toHide: true
          }
        }))
      })
   
    }
    
    function ytBtnCloseEngagementPanels() {
      if (isEngagementPanelExpanded()) {
        for (const s of document.querySelectorAll(
          `ytd-watch-flexy[flexy][tyt-tab] #panels.ytd-watch-flexy ytd-engagement-panel-section-list-renderer[target-id][visibility]:not([hidden])`
        )) {
          if (s.getAttribute('visibility') == "ENGAGEMENT_PANEL_VISIBILITY_EXPANDED") ytBtnCloseEngagementPanel(s);
        }
      }
    }
    */


    function ytBtnCloseEngagementPanels() {

      const actions = [];
      for (const panelElm of document.querySelectorAll(
        `ytd-watch-flexy[flexy][tyt-tab] #panels.ytd-watch-flexy ytd-engagement-panel-section-list-renderer[target-id][visibility]:not([hidden])`
      )) {
        if (panelElm.getAttribute('visibility') == "ENGAGEMENT_PANEL_VISIBILITY_EXPANDED" && !panelElm.closest('[hidden]')) {
          actions.push({
            panelId: panelElm.getAttribute000('target-id'),
            toHide: true
          });
        }
      }
      ytBtnEgmPanelCore(actions);
    }


    function ytBtnOpenPlaylist() {

      const cnt = insp(elements.playlist);
      if (cnt && typeof cnt.collapsed === 'boolean') {
        cnt.collapsed = false;
      }
    }
    function ytBtnClosePlaylist() {

      const cnt = insp(elements.playlist);
      if (cnt && typeof cnt.collapsed === 'boolean') {
        cnt.collapsed = true;
      }
    }

    const updateChatLocation498 = function () {
      /*
   
              updateChatLocation: function() {
              if (this.is !== "ytd-watch-grid" && y("web_watch_theater_chat")) {
                  var a = T(this.hostElement).querySelector("#chat-container")
                    , b = this.theater && (!this.fullscreen || y("web_watch_fullscreen_panels"));
                  this.watchWhileWindowSizeSufficient && this.liveChatPresentAndExpanded && b ? y("web_watch_theater_chat_beside_player") ? (b = T(this.hostElement).querySelector("#panels-full-bleed-container"),
                  (a == null ? void 0 : a.parentElement) !== b && b.append(a),
                  this.panelsBesidePlayer = !0) : y("web_watch_theater_fixed_chat") && (b = T(this.hostElement).querySelector("#columns"),
                  (a == null ? void 0 : a.parentElement) !== b && b.append(a),
                  this.fixedPanels = !0) : (y("web_watch_theater_chat_beside_player") ? this.panelsBesidePlayer = !1 : y("web_watch_theater_fixed_chat") && (this.fixedPanels = !1),
                  b = T(this.hostElement).querySelector("#playlist"),
                  a && b ? Fh(a, b) : Gm(new zk("Missing element when updating chat location",{
                      "chatContainer defined": !!a,
                      "playlist defined": !!b
                  })));
                  this.updatePageMediaQueries();
                  this.schedulePlayerSizeUpdate_()
              }
          },
   
          */

      // console.log('updateChatLocation498')
      if (this.is !== "ytd-watch-grid") {
        this.updatePageMediaQueries();
        this.schedulePlayerSizeUpdate_()
      }

    }

    const mirrorNodeWS = new WeakMap();

    /*
      const infoFix = () => {
        const infoExpander = elements.infoExpander;
        const ytdFlexyElm = elements.flexy;
        if (!infoExpander || !ytdFlexyElm) return;
        console.log(386, infoExpander, infoExpander.matches('#tab-info > [class]'))
        if (!infoExpander.matches('#tab-info > [class]')) return;
        // const elms = [...document.querySelectorAll('ytd-watch-metadata.ytd-watch-flexy div[slot="extra-content"], ytd-watch-metadata.ytd-watch-flexy ytd-metadata-row-container-renderer')].filter(elm=>{
        //   if(elm.parentNode.closest('div[slot="extra-content"], ytd-metadata-row-container-renderer')) return false;
        //    return true;
        // });
    
    
    
        const requireElements = [...document.querySelectorAll('ytd-watch-metadata.ytd-watch-flexy div[slot="extra-content"] > *, ytd-watch-metadata.ytd-watch-flexy #extra-content > *')].filter(elm => {
          return typeof elm.is == 'string'
        }).map(elm => {
          const is = elm.is;
          while (elm instanceof HTMLElement_) {
            const q = [...elm.querySelectorAll(is)].filter(e => insp(e).data);
            if (q.length >= 1) return q[0];
            elm = elm.parentNode;
          }
        }).filter(elm => !!elm && typeof elm.is === 'string');
        console.log(requireElements)
    
        const source = requireElements.map(entry=>({
          data: insp(entry).data,
          tag: insp(entry).is,
          elm: entry
        }))
    
        if (!document.querySelector('noscript#aythl')) {
          const noscript = document.createElement('noscript')
          noscript.id = 'aythl';
          ytdFlexyElm.insertBefore000(noscript, ytdFlexyElm.firstChild);
    
        }
        const noscript = document.querySelector('noscript#aythl');
    
        const clones = new Set();
        for (const {data, tag, elm} of source) {
    
          // const cloneNode = document.createElement(tag);
          let cloneNode = elm.cloneNode(true);
          // noscript.appendChild(cloneNode);
          // insp(cloneNode).data = null;
          insp(cloneNode).data = data;
          source.clone = cloneNode;
          clones.add(cloneNode);
        }
    
    
        // const elms = [...document.querySelectorAll('ytd-watch-metadata.ytd-watch-flexy div[slot="extra-content"]')].filter(elm => {
        //   if (elm.parentNode.closest('div[slot="extra-content"], ytd-metadata-row-container-renderer')) return false;
        //   return true;
        // });
    
        // let arr = [];
        // for(const elm of elms){
        //   if(elm.hasAttribute('slot')) arr.push(...elm.childNodes);
        //   else arr.push(elm);
        // }
        // arr = arr.filter(e=>e && e.nodeType === 1);
        // console.log(386,arr)
    
        // const clones = arr.map(e=>e.cloneNode(true));
    
        // for(let node = infoExpander.nextSibling; node instanceof Node; node = node.nextSibling) node.remove();
    
        // infoExpander.parentNode.assignChildren111(null, infoExpander, [...clones]);
        let removal = [];
        for(let node = infoExpander.nextSibling; node instanceof Node; node = node.nextSibling)removal.push(node);
        for(const node of removal) node.remove();
        for(const node of clones) infoExpander.parentNode.appendChild(node);
        
    
        for (const {data, tag, elm, clone} of source) {
    
          insp(clone).data = null;
          insp(clone).data = data;
        }
    
        // console.log(infoExpander.parentNode.childNodes)
      }
    */

    const dummyNode = document.createElement('noscript');

    // const __j4838__ = Symbol();
    const __j4836__ = Symbol();
    const __j5744__ = Symbol(); // original element
    const __j5733__ = Symbol(); // __lastChanged__

    const monitorDataChangedByDOMMutation = async function (mutations) {

      const nodeWR = this;
      const node = kRef(nodeWR);
      if (!node) return;

      const cnt = insp(node);
      const __lastChanged__ = cnt[__j5733__];


      const val = cnt.data ? (cnt.data[__j4836__] || 1) : 0;

      if (__lastChanged__ !== val) {
        cnt[__j5733__] = val > 0 ? (cnt.data[__j4836__] = Date.now()) : 0;

        await Promise.resolve(); // required for making sufficient delay for data rendering
        attributeInc(node, 'tyt-data-change-counter'); // next macro task

      }

    }

    const moChangeReflection = function (mutations) {

      const nodeWR = this;
      const node = kRef(nodeWR);
      if (!node) return;
      const originElement = kRef(node[__j5744__] || null) || null;
      if (!originElement) return;

      const cnt = insp(node);
      const oriCnt = insp(originElement);

      if (mutations) {

        let bfDataChangeCounter = false;
        for (const mutation of mutations) {

          if (mutation.attributeName === 'tyt-clone-refresh-count' && mutation.target === originElement) {
            bfDataChangeCounter = true;
          } else if (mutation.attributeName === 'tyt-data-change-counter' && mutation.target === originElement) {
            bfDataChangeCounter = true;
          }
        }
        if (bfDataChangeCounter && oriCnt.data) {
          node.replaceWith(dummyNode);
          cnt.data = Object.assign({}, oriCnt.data);
          dummyNode.replaceWith(node);
        }

      }
    }

    /*
    const moChangeReflection = async function (mutations) {
  
      const nodeWR = this;
      const node = kRef(nodeWR);
      if (!node) return;
      const originElement = kRef(node[__j5744__] || null) || null;
      if (!originElement) return;
  
      const cnt = insp(node);
      const oriCnt = insp(originElement);
  
      if(mutations){
  
        let bfDataChangeCounter = false;
        for (const mutation of mutations) {
          if (mutation.attributeName === 'tyt-data-change-counter' && mutation.target === originElement) {
            bfDataChangeCounter = true;
          }
        }
        if(bfDataChangeCounter && oriCnt.data){
          node.replaceWith(dummyNode);
          cnt.data = Object.assign({}, oriCnt.data);
          dummyNode.replaceWith(node);
        }
  
      } 
  
      // console.log(8348, originElement)
  
      if (cnt.isAttached === false) {
        // do nothing
        // don't call infoFix() as it shall be only called in ytd-expander::attached and yt-navigate-finish
      } else if (oriCnt.isAttached === false && cnt.isAttached === true) {
        if (node.isConnected && node.parentNode instanceof HTMLElement_) {
          node.parentNode.removeChild(node);
        } else {
          node.remove();
        }
        if (oriCnt.data !== null) {
          cnt.data = null;
        }
      } else if (oriCnt.isAttached === true && cnt.isAttached === true) {
        if (!oriCnt.data) {
          if(cnt.data){
            cnt.data = null;
          }
        } else if (!cnt.data || oriCnt.data[__j4838__] !== cnt.data[__j4838__]) {
          oriCnt.data[__j4838__] = Date.now();
          await Promise.resolve(); // required for making sufficient delay for data rendering
          attributeInc(originElement, 'tyt-data-change-counter'); // next macro task
        }
      }
  
    };
    */

    const attributeInc = (elm, prop) => {
      let v = (+elm.getAttribute000(prop) || 0) + 1;
      if (v > 1e9) v = 9;
      elm.setAttribute000(prop, v);
      return v;
    }


    /**
        * UC[-_a-zA-Z0-9+=.]{22}
        * https://support.google.com/youtube/answer/6070344?hl=en
        * The channel ID is the 24 character alphanumeric string that starts with 'UC' in the channel URL.
    */

    const isChannelId = (x) => {
      if (typeof x === 'string' && x.length === 24) {
        return /UC[-_a-zA-Z0-9+=.]{22}/.test(x);
      }
      return false;
    }


    const infoFix = (lockId) => {
      if (lockId !== null && lockGet['infoFixLock'] !== lockId) return;
      // console.log('((infoFix))')
      const infoExpander = elements.infoExpander;
      const infoContainer = (infoExpander ? infoExpander.parentNode : null) || document.querySelector('#tab-info');
      const ytdFlexyElm = elements.flexy;
      if (!infoContainer || !ytdFlexyElm) return;
      // console.log(386, infoExpander, infoExpander.matches('#tab-info > [class]'))
      if (infoExpander) {
        const match = infoExpander.matches('#tab-info > [class]') || infoExpander.matches('#tab-info > [tyt-main-info]');
        if (!match) return;
      }
      // const elms = [...document.querySelectorAll('ytd-watch-metadata.ytd-watch-flexy div[slot="extra-content"], ytd-watch-metadata.ytd-watch-flexy ytd-metadata-row-container-renderer')].filter(elm=>{
      //   if(elm.parentNode.closest('div[slot="extra-content"], ytd-metadata-row-container-renderer')) return false;
      //    return true;
      // });

      const requireElements = [...document.querySelectorAll('ytd-watch-metadata.ytd-watch-flexy div[slot="extra-content"] > *, ytd-watch-metadata.ytd-watch-flexy #extra-content > *')].filter(elm => {
        return typeof elm.is == 'string'
      }).map(elm => {
        const is = elm.is;
        while (elm instanceof HTMLElement_) {
          const q = [...elm.querySelectorAll(is)].filter(e => insp(e).data);
          if (q.length >= 1) return q[0];
          elm = elm.parentNode;
        }
      }).filter(elm => !!elm && typeof elm.is === 'string');
      // console.log(9162, requireElements)

      // if (!infoExpander && !requireElements.length) return;

      const source = requireElements.map(entry => {
        const inst = insp(entry);
        return {
          data: inst.data,
          tag: inst.is,
          elm: entry
        };
      });

      let noscript_ = document.querySelector('noscript#aythl');
      if (!noscript_) {
        noscript_ = document.createElement('noscript')
        noscript_.id = 'aythl';

        inPageRearrange = true;
        ytdFlexyElm.insertBefore000(noscript_, ytdFlexyElm.firstChild);
        inPageRearrange = false;
      }
      const noscript = noscript_;


      let requiredUpdate = false;
      const mirrorElmSet = new Set();
      const targetParent = infoContainer;
      for (const { data, tag: tag, elm: s } of source) {

        let mirrorNode = mirrorNodeWS.get(s)
        mirrorNode = mirrorNode ? kRef(mirrorNode) : mirrorNode;
        if (!mirrorNode) {
          const cnt = insp(s);
          const cProto = cnt.constructor.prototype;

          const element = document.createElement(tag);
          noscript.appendChild(element); // appendChild to trigger .attached()
          mirrorNode = element
          mirrorNode[__j5744__] = mWeakRef(s);

          const nodeWR = mWeakRef(mirrorNode);
          // if(!(insp(s)._dataChanged438)){
          //   insp(s)._dataChanged438 = async function(){

          //     await Promise.resolve(); // required for making sufficient delay for data rendering
          //     attributeInc(originElement, 'tyt-data-change-counter'); // next macro task
          //     moChangeReflection.call(nodeWR);
          //   }
          // }




          new MutationObserver(moChangeReflection.bind(nodeWR)).observe(s, { attributes: true, attributeFilter: ['tyt-clone-refresh-count', 'tyt-data-change-counter'] });


          s.jy8432 = 1;
          if (!(cProto instanceof Node) && !cProto._dataChanged496 && typeof cProto._createPropertyObserver === 'function') {


            cProto._dataChanged496 = function () {
              const cnt = this;
              const node = cnt.hostElement || cnt;
              if (node.jy8432) {

                // console.log('hello _dataChanged496', this.is);
                // await Promise.resolve(); // required for making sufficient delay for data rendering
                attributeInc(node, 'tyt-data-change-counter'); // next macro task
              }


            }

            cProto._createPropertyObserver('data', '_dataChanged496', undefined)

          } else if (!(cProto instanceof Node) && !cProto._dataChanged496 && cProto.useSignals === true && insp(s).signalProxy) {

            const dataSignal = cnt?.signalProxy?.signalCache?.data;
            if (dataSignal && typeof dataSignal.setWithPath === 'function' && !dataSignal.setWithPath573 && !dataSignal.controller573) {
              dataSignal.controller573 = mWeakRef(cnt);
              dataSignal.setWithPath573 = dataSignal.setWithPath;
              dataSignal.setWithPath = function () {
                const cnt = (kRef(this.controller573 || null) || null);
                cnt && typeof cnt._dataChanged496k === 'function' && Promise.resolve(cnt).then(cnt._dataChanged496k).catch(console.warn);
                return this.setWithPath573(...arguments)
              }
              cProto._dataChanged496 = function () {
                const cnt = this;
                const node = cnt.hostElement || cnt;
                if (node.jy8432) {
                  // console.log('hello _dataChanged496', this.is);
                  // await Promise.resolve(); // required for making sufficient delay for data rendering
                  attributeInc(node, 'tyt-data-change-counter'); // next macro task
                }
              }
              cProto._dataChanged496k = ((cnt) => cnt._dataChanged496());

            }

          }


          if (!cProto._dataChanged496) {

            new MutationObserver(monitorDataChangedByDOMMutation.bind(mirrorNode[__j5744__])).observe(s, { attributes: true, childList: true, subtree: true });

          }


          // new MutationObserver(moChangeReflection.bind(nodeWR)).observe(s, {attributes: true, childList: true, subtree: true});

          mirrorNodeWS.set(s, nodeWR);
          requiredUpdate = true;
        } else {

          if (mirrorNode.parentNode !== targetParent) {
            requiredUpdate = true;
          }
        }
        if (!requiredUpdate) {
          const cloneNodeCnt = insp(mirrorNode);
          if (cloneNodeCnt.data !== data) {
            // if(mirrorNode.parentNode !== noscript){
            //   noscript.appendChild(mirrorNode);
            // }
            // mirrorNode.replaceWith(dummyNode);
            // cloneNodeCnt.data = data;
            // dummyNode.replaceWith(mirrorNode);
            requiredUpdate = true;
          }
        }


        mirrorElmSet.add(mirrorNode);
        source.mirrored = mirrorNode;

      }

      const mirroElmArr = [...mirrorElmSet];
      mirrorElmSet.clear();

      if (!requiredUpdate) {
        let e = infoExpander ? -1 : 0;
        // DOM Tree Check
        for (let n = targetParent.firstChild; n instanceof Node; n = n.nextSibling) {
          let target = e < 0 ? infoExpander : mirroElmArr[e];
          e++;
          if (n !== target) {
            // target can be undefined if index overflow
            requiredUpdate = true;
            break;
          }
        }
        if (!requiredUpdate && e !== mirroElmArr.length + 1) requiredUpdate = true;
      }

      if (requiredUpdate) {
        if (infoExpander) {
          targetParent.assignChildren111(null, infoExpander, mirroElmArr);
        } else {
          targetParent.replaceChildren000(...mirroElmArr);
        }
        for (const mirrorElm of mirroElmArr) {
          // trigger data assignment and record refresh count by manual update
          const j = attributeInc(mirrorElm, 'tyt-clone-refresh-count');
          const oriElm = kRef(mirrorElm[__j5744__] || null) || null;
          if (oriElm) {
            oriElm.setAttribute111('tyt-clone-refresh-count', j)
          }
        }
      }

      mirroElmArr.length = 0;
      source.length = 0;

    }

    const layoutFix = (lockId) => {
      if (lockGet['layoutFixLock'] !== lockId) return;
      // console.log('((layoutFix))')

      const secondaryWrapper = document.querySelector('#secondary-inner.style-scope.ytd-watch-flexy > secondary-wrapper');
      // console.log(3838, !!chatContainer, !!(secondaryWrapper && secondaryInner), secondaryInner?.firstChild, secondaryInner?.lastChild , secondaryWrapper?.parentNode === secondaryInner)
      if (secondaryWrapper) {
        const secondaryInner = secondaryWrapper.parentNode;

        const chatContainer = document.querySelector('#columns.style-scope.ytd-watch-flexy [tyt-chat-container]');
        if (secondaryInner.firstChild !== secondaryInner.lastChild || (chatContainer && !chatContainer.closest('secondary-wrapper'))) {
          // console.log(38381)
          let w = [];
          let w2 = [];
          for (let node = secondaryInner.firstChild; node instanceof Node; node = node.nextSibling) {
            if (node === chatContainer && chatContainer) {

            } else if (node === secondaryWrapper) {

              for (let node2 = secondaryWrapper.firstChild; node2 instanceof Node; node2 = node2.nextSibling) {
                if (node2 === chatContainer && chatContainer) {
                } else {
                  if (node2.id === 'right-tabs' && chatContainer) {
                    w2.push(chatContainer);
                  }
                  w2.push(node2);
                }
              }
            } else {
              w.push(node);
            }
          }
          // console.log('qww', w, w2)

          inPageRearrange = true;
          secondaryWrapper.replaceChildren000(...w, ...w2);
          inPageRearrange = false;
          const chatElm = elements.chat;
          const chatCnt = insp(chatElm);
          if (chatCnt && typeof chatCnt.urlChanged === 'function' && secondaryWrapper.contains(chatElm)) {

            // setTimeout(() => chatCnt.urlChanged, 136);
            if (typeof chatCnt.urlChangedAsync12 === 'function') {
              console.log('elements.chat urlChangedAsync12', 61);
              chatCnt.urlChanged();
            } else {
              console.log('elements.chat urlChangedAsync12', 62);
              setTimeout(() => chatCnt.urlChanged(), 136);
            }
          }
        }
      }

    }

    let lastPanel = '';
    let lastTab = '';
    // let fixInitialTabState = 0;

    const aoEgmPanels = new MutationObserver(() => {
      // console.log(5094,3);
      Promise.resolve(lockSet['updateEgmPanelsLock']).then(updateEgmPanels).catch(console.warn);
    });

    const removeKeepCommentsScroller = async (lockId) => {
      if (lockGet['removeKeepCommentsScrollerLock'] !== lockId) return;
      await Promise.resolve();
      if (lockGet['removeKeepCommentsScrollerLock'] !== lockId) return;
      const ytdFlexyFlm = elements.flexy;
      if (ytdFlexyFlm) {
        ytdFlexyFlm.removeAttribute000('keep-comments-scroller');
      }
    }

    const updateEgmPanels = async (lockId) => {
      if (lockId !== lockGet['updateEgmPanelsLock']) return;
      await navigateFinishedPromise.then().catch(console.warn);
      if (lockId !== lockGet['updateEgmPanelsLock']) return;
      // console.log('updateEgmPanels::called');
      const ytdFlexyElm = elements.flexy;
      if (!ytdFlexyElm) return;
      let newVisiblePanels = [];
      let newHiddenPanels = [];
      let allVisiblePanels = [];
      for (const panelElm of document.querySelectorAll('[tyt-egm-panel][target-id][visibility]')) {
        const visibility = panelElm.getAttribute000('visibility');

        if (visibility === 'ENGAGEMENT_PANEL_VISIBILITY_HIDDEN' || panelElm.closest('[hidden]')) {
          if (panelElm.hasAttribute000('tyt-visible-at')) {
            panelElm.removeAttribute000('tyt-visible-at');
            newHiddenPanels.push(panelElm);
          }

        } else if (visibility === 'ENGAGEMENT_PANEL_VISIBILITY_EXPANDED' && !panelElm.closest('[hidden]')) {
          let visibleAt = panelElm.getAttribute000('tyt-visible-at');
          if (!visibleAt) {
            panelElm.setAttribute111('tyt-visible-at', Date.now());
            newVisiblePanels.push(panelElm);
          }
          allVisiblePanels.push(panelElm);
        }
      }
      if (newVisiblePanels.length >= 1 && allVisiblePanels.length >= 2) {
        const targetVisible = newVisiblePanels[newVisiblePanels.length - 1];

        const actions = [];
        for (const panelElm of allVisiblePanels) {
          if (panelElm === targetVisible) continue;
          actions.push({
            panelId: panelElm.getAttribute000('target-id'),
            toHide: true
          });
        }

        if (actions.length >= 1) {
          ytBtnEgmPanelCore(actions);
        }

      }
      if (allVisiblePanels.length >= 1) {
        ytdFlexyElm.setAttribute111('tyt-egm-panel_', '');
      } else {
        ytdFlexyElm.removeAttribute000('tyt-egm-panel_');
      }
      newVisiblePanels.length = 0;
      newVisiblePanels = null;
      newHiddenPanels.length = 0;
      newHiddenPanels = null;
      allVisiblePanels.length = 0;
      allVisiblePanels = null;
    }

    const checkElementExist = (css, exclude) => {
      for (const p of document.querySelectorAll(css)) {
        if (!p.closest(exclude)) return p;
      }
      return null;
    }

    let fixInitialTabStateK = 0;

    const { handleNavigateFactory } = (() => {


      let isLoadStartListened = false;

      function findLcComment(lc) {
        if (arguments.length === 1) {

          let element = document.querySelector(`#tab-comments ytd-comments ytd-comment-renderer #header-author a[href*="lc=${lc}"]`);
          if (element) {
            let commentRendererElm = closestFromAnchor.call(element, 'ytd-comment-renderer');
            if (commentRendererElm && lc) {
              return {
                lc,
                commentRendererElm
              }
            }
          }
        } else if (arguments.length === 0) {

          let element = document.querySelector(`#tab-comments ytd-comments ytd-comment-renderer > #linked-comment-badge span:not(:empty)`);
          if (element) {
            let commentRendererElm = closestFromAnchor.call(element, 'ytd-comment-renderer');
            if (commentRendererElm) {

              let header = _querySelector.call(commentRendererElm, '#header-author');
              if (header) {

                let anchor = _querySelector.call(header, 'a[href*="lc="]');
                if (anchor) {
                  let href = (anchor.getAttribute('href') || '');
                  let m = /[&?]lc=([\w_.-]+)/.exec(href); // dot = sub-comment
                  if (m) {
                    lc = m[1];
                  }
                }
              }

            }
            if (commentRendererElm && lc) {
              return {
                lc,
                commentRendererElm
              }
            }
          }
        }

        return null;

      }


      function lcSwapFuncA(targetLcId, currentLcId) {


        let done = 0;
        try {
          // console.log(currentLcId, targetLcId)

          let r1 = findLcComment(currentLcId).commentRendererElm;
          let r2 = findLcComment(targetLcId).commentRendererElm;


          if (typeof insp(r1).data.linkedCommentBadge === 'object' && typeof insp(r2).data.linkedCommentBadge === 'undefined') {

            let p = Object.assign({}, insp(r1).data.linkedCommentBadge)

            if (((p || 0).metadataBadgeRenderer || 0).trackingParams) {
              delete p.metadataBadgeRenderer.trackingParams;
            }

            const v1 = findContentsRenderer(r1)
            const v2 = findContentsRenderer(r2)


            if (v1.parent === v2.parent && (v2.parent.nodeName === 'YTD-COMMENTS' || v2.parent.nodeName === 'YTD-ITEM-SECTION-RENDERER')) {

            } else {
              // currently not supported
              return false;
            }



            if (v2.index >= 0) {
              if (v2.parent.nodeName === 'YTD-COMMENT-REPLIES-RENDERER') {


                if (lcSwapFuncB(targetLcId, currentLcId, p)) {
                  done = 1;
                }

                done = 1;
              } else {
                const v2pCnt = insp(v2.parent);
                const v2Conents = (v2pCnt.data || 0).contents || 0;
                if (!v2Conents) console.warn('v2Conents is not found');

                v2pCnt.data = Object.assign({}, v2pCnt.data, { contents: [].concat([v2Conents[v2.index]], v2Conents.slice(0, v2.index), v2Conents.slice(v2.index + 1)) });

                if (lcSwapFuncB(targetLcId, currentLcId, p)) {
                  done = 1;
                }
              }


            }



          }



        } catch (e) {
          console.warn(e)
        }
        return done === 1;
      }


      function lcSwapFuncB(targetLcId, currentLcId, _p) {

        let done = 0;
        try {

          let r1 = findLcComment(currentLcId).commentRendererElm;
          let r1cnt = insp(r1);
          let r2 = findLcComment(targetLcId).commentRendererElm;
          let r2cnt = insp(r2);

          const r1d = r1cnt.data;
          let p = Object.assign({}, _p)
          r1d.linkedCommentBadge = null;
          delete r1d.linkedCommentBadge;

          let q = Object.assign({}, r1d);
          q.linkedCommentBadge = null;
          delete q.linkedCommentBadge;

          r1cnt.data = Object.assign({}, q);
          r2cnt.data = Object.assign({}, r2cnt.data, { linkedCommentBadge: p });

          done = 1;

        } catch (e) {
          console.warn(e)
        }
        return done === 1;
      }

      const loadStartFx = async (evt) => {

        let media = (evt || 0).target || 0;
        if (media.nodeName === 'VIDEO' || media.nodeName === 'AUDIO') { }
        else return;

        const newMedia = media;

        const media1 = common.getMediaElement(0); // document.querySelector('#movie_player video[src]');
        const media2 = common.getMediaElements(2); // document.querySelectorAll('ytd-browse[role="main"] video[src]');

        if (media1 !== null && media2.length > 0) {
          if (newMedia !== media1 && media1.paused === false) {
            if (isVideoPlaying(media1)) {
              Promise.resolve(newMedia).then(video => video.paused === false && video.pause()).catch(console.warn);
            }
          } else if (newMedia === media1) {
            for (const s of media2) {
              if (s.paused === false) {
                Promise.resolve(s).then(s => s.paused === false && s.pause()).catch(console.warn);
                break;
              }
            }
          } else {
            Promise.resolve(media1).then(video1 => video1.paused === false && video1.pause()).catch(console.warn);
          }
        }

      }

      const getBrowsableEndPoint = (req) => {

        let valid = false;
        let endpoint = req ? req.command : null;
        if (endpoint && (endpoint.commandMetadata || 0).webCommandMetadata && endpoint.watchEndpoint) {
          let videoId = endpoint.watchEndpoint.videoId;
          let url = endpoint.commandMetadata.webCommandMetadata.url;

          if (typeof videoId === 'string' && typeof url === 'string' && url.indexOf('lc=') > 0) {

            let m = /^\/watch\?v=([\w_-]+)&lc=([\w_.-]+)$/.exec(url); // dot = sub-comment
            if (m && m[1] === videoId) {


              /*
              {
                "style": "BADGE_STYLE_TYPE_SIMPLE",
                "label": "注目のコメント",
                "trackingParams": "XXXXXX"
            }
              */

              let targetLc = findLcComment(m[2])
              let currentLc = targetLc ? findLcComment() : null;

              if (targetLc && currentLc) {


                let done = targetLc.lc === currentLc.lc ? 1 : lcSwapFuncA(targetLc.lc, currentLc.lc) ? 1 : 0

                if (done === 1) {

                  common.xReplaceState(history.state, url);
                  return;
                }
              }
            }

          }

        }



        /*
            
            {
              "type": 0,
              "command": endpoint,
              "form": {
                "tempData": {},
                "reload": false
              }
            }
  
        */

        if (endpoint && (endpoint.commandMetadata || 0).webCommandMetadata && endpoint.browseEndpoint && isChannelId(endpoint.browseEndpoint.browseId)) {
          valid = true;

        } else if (endpoint && (endpoint.browseEndpoint || endpoint.searchEndpoint) && !endpoint.urlEndpoint && !endpoint.watchEndpoint) {

          if (endpoint.browseEndpoint && endpoint.browseEndpoint.browseId === "FEwhat_to_watch") {
            // valid = false;
            const playerMedia = common.getMediaElement(1);
            if (playerMedia && playerMedia.paused === false) valid = true; // home page
          } else if (endpoint.commandMetadata && endpoint.commandMetadata.webCommandMetadata) {

            let meta = endpoint.commandMetadata.webCommandMetadata
            if (meta && /*meta.apiUrl &&*/ meta.url && meta.webPageType) {
              valid = true;
            }

          }
        }

        if (!valid) endpoint = null;

        return endpoint;
      }

      const shouldUseMiniPlayer = () => {

        const isSubTypeExist = document.querySelector('ytd-page-manager#page-manager > ytd-browse[page-subtype]');

        if (isSubTypeExist) return true;

        const movie_player = [...document.querySelectorAll('#movie_player')].filter(e => !e.closest('[hidden]'))[0];
        if (movie_player) {
          const media = qsOne(movie_player, 'video[class], audio[class]');
          if (media && media.currentTime > 3 && media.duration - media.currentTime > 3 && media.paused === false) {
            return true;
          }
        }
        return false;
        // return true;
        // return !!document.querySelector('ytd-page-manager#page-manager > ytd-browse[page-subtype]');
      }

      const conditionFulfillment = (req) => {
        const endpoint = req ? req.command : null;
        if (!endpoint) return;

        if (endpoint && (endpoint.commandMetadata || 0).webCommandMetadata && endpoint.watchEndpoint) {
        } else if (endpoint && (endpoint.commandMetadata || 0).webCommandMetadata && endpoint.browseEndpoint && isChannelId(endpoint.browseEndpoint.browseId)) {
        } else if (endpoint && (endpoint.browseEndpoint || endpoint.searchEndpoint) && !endpoint.urlEndpoint && !endpoint.watchEndpoint) {
        } else {
          return false;
        }


        if (!shouldUseMiniPlayer()) return false;

        /*
          // user would like to switch page immediately without playing the video;
          // attribute appear after playing video for more than 2s
          if (!document.head.dataset.viTime) return false;
          else {
            let currentVideo = common.getMediaElement(0);
            if (currentVideo && currentVideo.readyState > currentVideo.HAVE_CURRENT_DATA && currentVideo.currentTime > 2.2 && currentVideo.duration - 2.2 < currentVideo.currentTime) {
              // disable miniview browsing if the media is near to the end
              return false;
            }
          }
        */


        if (pageType !== "watch") return false;


        if (!checkElementExist('ytd-watch-flexy #player button.ytp-miniplayer-button.ytp-button', '[hidden]')) {
          return false;
        }

        return true;
      }

      let u38 = 0;
      const fixChannelAboutPopup = async (t38) => {

        let promise = new PromiseExternal();
        const f = () => {
          promise && promise.resolve();
          promise = null;
        }
        document.addEventListener('yt-navigate-finish', f, false);
        await promise.then();
        promise = null;
        document.removeEventListener('yt-navigate-finish', f, false);
        if (t38 !== u38) return;
        setTimeout(() => {
          const currentAbout = [...document.querySelectorAll('ytd-about-channel-renderer')].filter(e => !e.closest('[hidden]'))[0];
          let okay = false;
          if (!currentAbout) okay = true;
          else {
            const popupContainer = currentAbout.closest('ytd-popup-container');
            if (popupContainer) {
              const cnt = insp(popupContainer);
              let arr = null;
              try {
                arr = cnt.handleGetOpenedPopupsAction_()
              } catch (e) {

              }
              if (arr && arr.length === 0) okay = true;
            } else {
              okay = false;
            }
          }
          if (okay) {
            const descriptionModel = [...document.querySelectorAll('yt-description-preview-view-model')].filter(e => !e.closest('[hidden]'))[0];
            if (descriptionModel) {
              const button = [...descriptionModel.querySelectorAll('button')].filter(e => !e.closest('[hidden]') && `${e.textContent}`.trim().length > 0)[0];
              if (button) {
                button.click();
              }
            }
          }
        }, 80);

      }
      const handleNavigateFactory = (handleNavigate) => {

        return function (req) {

          if (u38 > 1e9) u38 = 9;
          const t38 = ++u38;

          const $this = this;
          const $arguments = arguments;

          let endpoint = null;


          if (conditionFulfillment(req)) {


            endpoint = getBrowsableEndPoint(req);

          }


          if (!endpoint || !shouldUseMiniPlayer()) return handleNavigate.apply($this, $arguments);

          // console.log('tabview-script-handleNavigate')

          const ytdAppElm = document.querySelector('ytd-app');
          const ytdAppCnt = insp(ytdAppElm);

          let object = null;
          try {
            object = ytdAppCnt.data.response.currentVideoEndpoint.watchEndpoint || null;
          } catch (e) {
            object = null;
          }

          if (typeof object !== 'object') object = null;

          const once = { once: true }; // browsers supporting async function can also use once option.

          if (object !== null && !('playlistId' in object)) {

            let wObject = mWeakRef(object)

            const N = 3;

            let count = 0;

            /*
              
              rcb(b) => a = playlistId = undefinded
              
              var scb = function(a, b, c, d) {
                      a.isInitialized() && (B("kevlar_miniplayer_navigate_to_shorts_killswitch") ? c || d ? ("watch" !== Xu(b) && "shorts" !== Xu(b) && os(a.miniplayerEl, "yt-cache-miniplayer-page-action", [b]),
                      qs(a.miniplayerEl, "yt-deactivate-miniplayer-action")) : "watch" === Xu(b) && rcb(b) && (qt.getInstance().playlistWatchPageActivation = !0,
                      a.activateMiniplayer(b)) : c ? ("watch" !== Xu(b) && os(a.miniplayerEl, "yt-cache-miniplayer-page-action", [b]),
                      qs(a.miniplayerEl, "yt-deactivate-miniplayer-action")) : d ? qs(a.miniplayerEl, "yt-pause-miniplayer-action") : "watch" === Xu(b) && rcb(b) && (qt.getInstance().playlistWatchPageActivation = !0,
                      a.activateMiniplayer(b)))
                  };
    
            */

            Object.defineProperty((kRef(wObject) || {}), 'playlistId', {
              get() {
                count++;
                if (count === N) {
                  delete this.playlistId;
                }
                return '*';
              },
              set(value) {
                delete this.playlistId; // remove property definition
                this.playlistId = value; // assign as normal property
              },
              enumerable: false,
              configurable: true
            });

            let playlistClearout = null;

            let timeoutid = 0;
            Promise.race([
              new Promise(r => {
                timeoutid = setTimeout(r, 4000)
              }),
              new Promise(r => {
                playlistClearout = () => {
                  if (timeoutid > 0) {
                    clearTimeout(timeoutid);
                    timeoutid = 0;
                  }
                  r();
                }
                document.addEventListener('yt-page-type-changed', playlistClearout, once);
              })
            ]).then(() => {

              if (timeoutid !== 0) {
                playlistClearout && document.removeEventListener('yt-page-type-changed', playlistClearout, once);
                timeoutid = 0;
              }
              playlistClearout = null;
              count = N - 1;
              let object = kRef(wObject)
              wObject = null;
              return object ? object.playlistId : null;
            }).catch(console.warn);

          }

          if (!isLoadStartListened) {
            isLoadStartListened = true;
            document.addEventListener('loadstart', loadStartFx, true)
          }

          const endpointURL = `${(endpoint?.commandMetadata?.webCommandMetadata?.url || '')}`;

          if (endpointURL && endpointURL.endsWith('/about') && /\/channel\/UC[-_a-zA-Z0-9+=.]{22}\/about/.test(endpointURL)) {
            fixChannelAboutPopup(t38);
          }

          handleNavigate.apply($this, $arguments);


        }

      };

      return { handleNavigateFactory };


    })();

    const common = (() => {


      let mediaModeLock = 0;
      const _getMediaElement = (i) => {
        if (mediaModeLock === 0) {
          let e = document.querySelector('.video-stream.html5-main-video') || document.querySelector('#movie_player video, #movie_player audio') || document.querySelector('body video[src], body audio[src]');
          if (e) {
            if (e.nodeName === 'VIDEO') mediaModeLock = 1;
            else if (e.nodeName === 'AUDIO') mediaModeLock = 2;
          }
        }
        if (!mediaModeLock) return null;
        if (mediaModeLock === 1) {
          switch (i) {
            case 1:
              return ('ytd-player#ytd-player video[src]');
            case 2:
              return ('ytd-browse[role="main"] video[src]');
            case 0:
            default:
              return ('#movie_player video[src]');
          }
        } else if (mediaModeLock === 2) {
          switch (i) {
            case 1:
              return ('ytd-player#ytd-player audio.video-stream.html5-main-video[src]');
            case 2:
              return ('ytd-browse[role="main"] audio.video-stream.html5-main-video[src]');
            case 0:
            default:
              return ('#movie_player audio.video-stream.html5-main-video[src]');
          }
        }
        return null;
      }

      return {


        xReplaceState(s, u) {
          try {
            history.replaceState(s, '', u);
          } catch (e) {
            // in case error occurs if replaceState is replaced by any external script / extension
          }
          if (s.endpoint) {
            try {
              const ytdAppElm = document.querySelector('ytd-app');
              const ytdAppCnt = insp(ytdAppElm);
              ytdAppCnt.replaceState(s.endpoint, '', u)
            } catch (e) {
            }
          }
        },
        getMediaElement(i) {
          let s = _getMediaElement(i) || '';
          if (s) return document.querySelector(s);
          return null;
        },
        getMediaElements(i) {
          let s = _getMediaElement(i) || '';
          if (s) return document.querySelectorAll(s);
          return [];
        }
      };
    })();

    let inPageRearrange = false;
    let tmpLastVideoId = '';
    // const nsMap = new Map();

    const getCurrentVideoId = () => {
      const ytdFlexyElm = elements.flexy;
      const ytdFlexyCnt = insp(ytdFlexyElm);
      if (ytdFlexyCnt && typeof ytdFlexyCnt.videoId === 'string') return ytdFlexyCnt.videoId;
      if (ytdFlexyElm && typeof ytdFlexyElm.videoId === 'string') return ytdFlexyElm.videoId;
      console.log('video id not found');
      return '';
    };

    const holdInlineExpanderAlwaysExpanded = (inlineExpanderCnt) => {
      console.log('holdInlineExpanderAlwaysExpanded')
      if (inlineExpanderCnt.alwaysShowExpandButton === true) inlineExpanderCnt.alwaysShowExpandButton = false;
      if (typeof (inlineExpanderCnt.collapseLabel || 0) === 'string') inlineExpanderCnt.collapseLabel = '';
      if (typeof (inlineExpanderCnt.expandLabel || 0) === 'string') inlineExpanderCnt.expandLabel = '';
      if (inlineExpanderCnt.showCollapseButton === true) inlineExpanderCnt.showCollapseButton = false;
      if (inlineExpanderCnt.showExpandButton === true) inlineExpanderCnt.showExpandButton = false;
      if (inlineExpanderCnt.expandButton instanceof HTMLElement_) {
        inlineExpanderCnt.expandButton = null;
        inlineExpanderCnt.expandButton.remove();
      }
    };

    const fixInlineExpanderDisplay = (inlineExpanderCnt) => {
      try {
        inlineExpanderCnt.updateIsAttributedExpanded();
      } catch (e) { }
      try {
        inlineExpanderCnt.updateIsFormattedExpanded();
      } catch (e) { }
      try {
        inlineExpanderCnt.updateTextOnSnippetTypeChange();
      } catch (e) { }
      try {
        inlineExpanderCnt.updateStyles();
      } catch (e) { }
    };

    const fixInlineExpanderMethods = (inlineExpanderCnt) => {
      if (inlineExpanderCnt && !inlineExpanderCnt.__$$idncjk8487$$__) {
        inlineExpanderCnt.__$$idncjk8487$$__ = true;
        inlineExpanderCnt.updateTextOnSnippetTypeChange = function () {
          true || this.isResetMutation && this.mutationCallback();
        }
        // inlineExpanderCnt.hasAttributedStringText = true;
        inlineExpanderCnt.isResetMutation = true;
        fixInlineExpanderDisplay(inlineExpanderCnt); // do the initial fix
      }
    };

    const fixInlineExpanderContent = () => {
      // console.log(21886,1)
      const mainInfo = getMainInfo();
      if (!mainInfo) return;
      // console.log(21886,2)
      const inlineExpanderElm = mainInfo.querySelector('ytd-text-inline-expander');
      const inlineExpanderCnt = insp(inlineExpanderElm);
      fixInlineExpanderMethods(inlineExpanderCnt);

      // console.log(21886, 3)
      // if (inlineExpanderCnt && inlineExpanderCnt.isExpanded === true && plugin.autoExpandInfoDesc.activated) {
      //   // inlineExpanderCnt.isExpandedChanged();
      //   // holdInlineExpanderAlwaysExpanded(inlineExpanderCnt);
      // }
      // if(inlineExpanderCnt){
      //   // console.log(21886,4, inlineExpanderCnt.isExpanded, inlineExpanderCnt.isTruncated)
      //   if (inlineExpanderCnt.isExpanded === false && inlineExpanderCnt.isTruncated === true) {
      //     // console.log(21881)
      //     inlineExpanderCnt.isTruncated = false;
      //   }
      // }
    }

    const plugin = {
      'minibrowser': {
        activated: false,
        toUse: true, // depends on shouldUseMiniPlayer()
        activate() {

          if (this.activated) return;

          const isPassiveArgSupport = (typeof IntersectionObserver === 'function');
          // https://caniuse.com/?search=observer
          // https://caniuse.com/?search=addEventListener%20passive

          if (!isPassiveArgSupport) return;

          this.activated = true;

          const ytdAppElm = document.querySelector('ytd-app');
          const ytdAppCnt = insp(ytdAppElm);


          if (!ytdAppCnt) return;

          const cProto = ytdAppCnt.constructor.prototype;

          if (!cProto.handleNavigate) return;

          if (cProto.handleNavigate.__ma355__) return;

          cProto.handleNavigate = handleNavigateFactory(cProto.handleNavigate);

          cProto.handleNavigate.__ma355__ = 1;
        }
      },
      'autoExpandInfoDesc': {
        activated: false,
        toUse: false, // false by default; once the expand is clicked, maintain the feature until the browser is closed.
        /** @type { MutationObserver | null } */
        mo: null,
        promiseReady: new PromiseExternal(),
        moFn(lockId) {

          if (lockGet['autoExpandInfoDescAttrAsyncLock'] !== lockId) return;

          const mainInfo = getMainInfo();

          if (!mainInfo) return;
          switch (((mainInfo || 0).nodeName || '').toLowerCase()) {
            case 'ytd-expander':
              if (mainInfo.hasAttribute000('collapsed')) {
                let success = false;
                try {
                  insp(mainInfo).handleMoreTap(new Event("tap"));
                  success = true;
                } catch (e) {
                }
                if (success) mainInfo.setAttribute111('tyt-no-less-btn', '');
              }
              break;
            case 'ytd-expandable-video-description-body-renderer':
              const inlineExpanderElm = mainInfo.querySelector('ytd-text-inline-expander');
              const inlineExpanderCnt = insp(inlineExpanderElm);
              if (inlineExpanderCnt && inlineExpanderCnt.isExpanded === false) {
                inlineExpanderCnt.isExpanded = true;
                inlineExpanderCnt.isExpandedChanged();
                // holdInlineExpanderAlwaysExpanded(inlineExpanderCnt);
              }
              break;
          }



        },
        activate() {
          if (this.activated) return;

          this.moFn = this.moFn.bind(this);
          this.mo = new MutationObserver(() => {
            Promise.resolve(lockSet['autoExpandInfoDescAttrAsyncLock']).then(this.moFn).catch(console.warn);
          });
          this.activated = true;
          this.promiseReady.resolve();
        },
        async onMainInfoSet(mainInfo) {
          await this.promiseReady.then();
          if (mainInfo.nodeName.toLowerCase() === 'ytd-expander') {
            this.mo.observe(mainInfo, { attributes: true, attributeFilter: ['collapsed', 'attr-8ifv7'] });
          } else {
            this.mo.observe(mainInfo, { attributes: true, attributeFilter: ['attr-8ifv7'] });
          }
          mainInfo.incAttribute111('attr-8ifv7');
        }
      },
      'fullChannelNameOnHover': {
        activated: false,
        toUse: true,
        /** @type { MutationObserver | null } */
        mo: null,
        /** @type { ResizeObserver | null} */
        ro: null,
        promiseReady: new PromiseExternal(),
        checkResize: 0,
        mouseEnterFn(evt) {

          const target = evt ? evt.target : null;
          if (!(target instanceof HTMLElement_)) return;
          const metaDataElm = target.closest('ytd-watch-metadata');
          metaDataElm.classList.remove('tyt-metadata-hover-resized');
          this.checkResize = Date.now() + 300;
          metaDataElm.classList.add('tyt-metadata-hover');
          // console.log('mouseEnter')

        },
        mouseLeaveFn(evt) {
          const target = evt ? evt.target : null;
          if (!(target instanceof HTMLElement_)) return;
          const metaDataElm = target.closest('ytd-watch-metadata');
          metaDataElm.classList.remove('tyt-metadata-hover-resized');
          metaDataElm.classList.remove('tyt-metadata-hover');
          // console.log('mouseLeaveFn')

        },
        moFn(lockId) {

          if (lockGet['fullChannelNameOnHoverAttrAsyncLock'] !== lockId) return;

          const uploadInfo = document.querySelector('#primary.ytd-watch-flexy ytd-watch-metadata #upload-info');
          if (!uploadInfo) return;

          const evtOpt = { passive: true, capture: false };
          uploadInfo.removeEventListener('pointerenter', this.mouseEnterFn, evtOpt);
          uploadInfo.removeEventListener('pointerleave', this.mouseLeaveFn, evtOpt);

          uploadInfo.addEventListener('pointerenter', this.mouseEnterFn, evtOpt);
          uploadInfo.addEventListener('pointerleave', this.mouseLeaveFn, evtOpt);



        },
        async onNavigateFinish() {
          await this.promiseReady.then();
          const uploadInfo = document.querySelector('#primary.ytd-watch-flexy ytd-watch-metadata #upload-info');
          if (!uploadInfo) return;
          this.mo.observe(uploadInfo, { attributes: true, attributeFilter: ['hidden', 'attr-3wb0k'] });
          uploadInfo.incAttribute111('attr-3wb0k');
          this.ro.observe(uploadInfo);
        },
        activate() {

          if (this.activated) return;

          const isPassiveArgSupport = (typeof IntersectionObserver === 'function');
          // https://caniuse.com/?search=observer
          // https://caniuse.com/?search=addEventListener%20passive

          if (!isPassiveArgSupport) return;

          this.activated = true;

          this.mouseEnterFn = this.mouseEnterFn.bind(this);
          this.mouseLeaveFn = this.mouseLeaveFn.bind(this);

          this.moFn = this.moFn.bind(this);
          this.mo = new MutationObserver(() => {
            Promise.resolve(lockSet['fullChannelNameOnHoverAttrAsyncLock']).then(this.moFn).catch(console.warn);
          });
          this.ro = new ResizeObserver((mutations) => {

            if (Date.now() > this.checkResize) return;
            for (const mutation of mutations) {
              const uploadInfo = mutation.target;
              if (uploadInfo && mutation.contentRect.width > 0 && mutation.contentRect.height > 0) {

                const metaDataElm = uploadInfo.closest('ytd-watch-metadata');
                if (metaDataElm.classList.contains('tyt-metadata-hover')) {

                  metaDataElm.classList.add('tyt-metadata-hover-resized');
                }

                break;

              }
            }
          });
          this.promiseReady.resolve();
        }
      }
    }

    if (sessionStorage.__$$tmp_UseAutoExpandInfoDesc$$__) plugin.autoExpandInfoDesc.toUse = true;

    // let shouldFixInfo = false;
    const __attachedSymbol__ = Symbol();

    const makeInitAttached = (tag) => {
      const inPageRearrange_ = inPageRearrange;
      inPageRearrange = false;
      for (const elm of document.querySelectorAll(`${tag}`)) {
        const cnt = insp(elm) || 0;
        if (typeof cnt.attached498 === 'function' && !elm[__attachedSymbol__]) Promise.resolve(elm).then(eventMap[`${tag}::attached`]).catch(console.warn);
      }
      inPageRearrange = inPageRearrange_;
    };

    const getGeneralChatElement = async () => {
      for (let i = 2; i-- > 0;) {
        let t = document.querySelector('#columns.style-scope.ytd-watch-flexy ytd-live-chat-frame#chat');
        if (t instanceof Element) return t;
        if (i > 0) {
          // try later
          console.log('ytd-live-chat-frame::attached - delayPn(200)')
          await delayPn(200);
        }
      }
      return null;
    };

    const nsTemplateObtain = () => {
      let nsTemplate = document.querySelector('ytd-watch-flexy noscript[ns-template]');
      if (!nsTemplate) {
        nsTemplate = document.createElement('noscript');
        nsTemplate.setAttribute('ns-template', '');
        document.querySelector('ytd-watch-flexy').appendChild(nsTemplate);
      }
      return nsTemplate;
    };

    const isPageDOM = (elm, selector) => {
      if (!elm || !(elm instanceof Element) || !(elm.nodeName)) return false;
      if (!elm.closest(selector)) return false;
      if (elm.isConnected !== true) return false;
      return true;
    };

    const invalidFlexyParent = (hostElement) => {
      if (hostElement instanceof HTMLElement) {
        const hasFlexyParent = HTMLElement.prototype.closest.call(hostElement, 'ytd-watch-flexy');  // eg short
        if (!hasFlexyParent) return true;
        const currentFlexy = elements.flexy;
        if (currentFlexy && currentFlexy !== hasFlexyParent) return true;
      }
      return false;
    }

    // const mutationComment = document.createComment('1');
    // let mutationPromise = new PromiseExternal();
    // const mutationPromiseObs = new MutationObserver(()=>{
    //   mutationPromise.resolve();
    //   mutationPromise = new PromiseExternal();
    // });
    // mutationPromiseObs.observe(mutationComment, {characterData: true});

    let headerMutationObserver = null;
    let headerMutationTmpNode = null;

    const eventMap = {

      'ceHack': () => {
        mLoaded.flag |= 2;
        document.documentElement.setAttribute111('tabview-loaded', mLoaded.makeString());

        retrieveCE('ytd-watch-flexy').then(eventMap['ytd-watch-flexy::defined']).catch(console.warn);
        retrieveCE('ytd-expander').then(eventMap['ytd-expander::defined']).catch(console.warn);
        retrieveCE('ytd-watch-next-secondary-results-renderer').then(eventMap['ytd-watch-next-secondary-results-renderer::defined']).catch(console.warn);
        retrieveCE('ytd-comments-header-renderer').then(eventMap['ytd-comments-header-renderer::defined']).catch(console.warn);
        retrieveCE('ytd-live-chat-frame').then(eventMap['ytd-live-chat-frame::defined']).catch(console.warn);
        retrieveCE('ytd-comments').then(eventMap['ytd-comments::defined']).catch(console.warn);
        retrieveCE('ytd-engagement-panel-section-list-renderer').then(eventMap['ytd-engagement-panel-section-list-renderer::defined']).catch(console.warn);
        retrieveCE('ytd-watch-metadata').then(eventMap['ytd-watch-metadata::defined']).catch(console.warn);
        retrieveCE('ytd-playlist-panel-renderer').then(eventMap['ytd-playlist-panel-renderer::defined']).catch(console.warn);
        retrieveCE('ytd-expandable-video-description-body-renderer').then(eventMap['ytd-expandable-video-description-body-renderer::defined']).catch(console.warn);

      },

      'fixForTabDisplay': (isResize) => {
        // isResize is true if the layout is resized (not due to tab switching)
        // youtube components shall handle the resize issue. can skip some checkings.

        bFixForResizedTabLater = false;
        for (const element of document.querySelectorAll('[io-intersected]')) {
          const cnt = insp(element);
          if (element instanceof HTMLElement_ && typeof cnt.calculateCanCollapse === 'function') {
            try {
              cnt.calculateCanCollapse(true);
            } catch (e) { }
          }
        }

        if (!isResize && lastTab === '#tab-info') {
          // #tab-info is now shown.
          // to fix the sizing issue (description info cards in tab info)
          for (const element of document.querySelectorAll('#tab-info ytd-video-description-infocards-section-renderer, #tab-info yt-chip-cloud-renderer, #tab-info ytd-horizontal-card-list-renderer, #tab-info yt-horizontal-list-renderer')) {
            const cnt = insp(element);
            if (element instanceof HTMLElement_ && typeof cnt.notifyResize === 'function') {
              try {
                cnt.notifyResize();
              } catch (e) { }
            }
          }
          // to fix expand/collapse sizing issue (inline-expander in tab info)
          // for example, expand button is required but not shown as it was rendered in the hidden state
          for (const element of document.querySelectorAll('#tab-info ytd-text-inline-expander')) {
            const cnt = insp(element);
            if (element instanceof HTMLElement_ && typeof cnt.resize === 'function') {
              cnt.resize(false); // reflow due to offsetWidth calling
            }
            fixInlineExpanderDisplay(cnt); // just in case
          }
        }

        if (!isResize && typeof lastTab === 'string' && lastTab.startsWith('#tab-')) {
          const tabContent = document.querySelector('.tab-content-cld:not(.tab-content-hidden)');
          if (tabContent) {
            const renderers = tabContent.querySelectorAll('yt-chip-cloud-renderer');
            for (const renderer of renderers) {
              const cnt = insp(renderer);
              if (typeof cnt.notifyResize === 'function') {
                try {
                  cnt.notifyResize();
                } catch (e) { }
              }
            }
          }
        }

      },

      'ytd-watch-flexy::defined': (cProto) => {

        if (!cProto.updateChatLocation498 && typeof cProto.updateChatLocation === 'function' && cProto.updateChatLocation.length === 0) {
          cProto.updateChatLocation498 = cProto.updateChatLocation;
          cProto.updateChatLocation = updateChatLocation498;
        }

      },



      'ytd-watch-next-secondary-results-renderer::defined': (cProto) => {
        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-watch-next-secondary-results-renderer::attached']).catch(console.warn);
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-watch-next-secondary-results-renderer::detached']).catch(console.warn);
            return this.detached498();
          }
        }

        makeInitAttached('ytd-watch-next-secondary-results-renderer');

      },

      'ytd-watch-next-secondary-results-renderer::attached': (hostElement) => {

        if (invalidFlexyParent(hostElement)) return;

        // if (inPageRearrange) return;
        DEBUG_5084 && console.log(5084, 'ytd-watch-next-secondary-results-renderer::attached');
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;
        // if (hostElement.__connectedFlg__ !== 4) return;
        // hostElement.__connectedFlg__ = 5;
        if (hostElement instanceof HTMLElement_ && hostElement.matches('#columns #related ytd-watch-next-secondary-results-renderer') && !hostElement.matches('#right-tabs ytd-watch-next-secondary-results-renderer, [hidden] ytd-watch-next-secondary-results-renderer')) {
          elements.related = hostElement.closest('#related');
          hostElement.setAttribute111('tyt-videos-list', '');
        }
        // console.log('ytd-watch-next-secondary-results-renderer::attached', hostElement);
      },

      'ytd-watch-next-secondary-results-renderer::detached': (hostElement) => {
        // if (inPageRearrange) return;
        DEBUG_5084 && console.log(5084, 'ytd-watch-next-secondary-results-renderer::detached');
        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;
        if (hostElement.hasAttribute000('tyt-videos-list')) {
          elements.related = null;
          hostElement.removeAttribute000('tyt-videos-list');
        }
        console.log('ytd-watch-next-secondary-results-renderer::detached', hostElement);
      },


      'settingCommentsVideoId': (hostElement) => {
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        const cnt = insp(hostElement);
        const commentsArea = elements.comments;
        if (commentsArea !== hostElement || hostElement.isConnected !== true || cnt.isAttached !== true || !cnt.data || cnt.hidden !== false) return;
        const ytdFlexyElm = elements.flexy;
        const ytdFlexyCnt = ytdFlexyElm ? insp(ytdFlexyElm) : null;
        if (ytdFlexyCnt && ytdFlexyCnt.videoId) {
          hostElement.setAttribute111('tyt-comments-video-id', ytdFlexyCnt.videoId)
        } else {
          hostElement.removeAttribute000('tyt-comments-video-id')
        }
      },
      'checkCommentsShouldBeHidden': (lockId) => {

        if (lockGet['checkCommentsShouldBeHiddenLock'] !== lockId) return;

        // commentsArea's attribute: tyt-comments-video-id
        // ytdFlexyElm's attribute: video-id


        const commentsArea = elements.comments;
        const ytdFlexyElm = elements.flexy;
        if (commentsArea && ytdFlexyElm && !commentsArea.hasAttribute000('hidden')) {
          const ytdFlexyCnt = insp(ytdFlexyElm);
          if (typeof ytdFlexyCnt.videoId === 'string') {
            const commentsVideoId = commentsArea.getAttribute('tyt-comments-video-id');
            if (commentsVideoId && commentsVideoId !== ytdFlexyCnt.videoId) {
              commentsArea.setAttribute111('hidden', '');
              // removeKeepCommentsScroller();
            }
          }
        }

      },
      'ytd-comments::defined': (cProto) => {

        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-comments::attached']).catch(console.warn);
            // Promise.resolve(this.hostElement).then(eventMap['ytd-comments::dataChanged_']).catch(console.warn);
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-comments::detached']).catch(console.warn);
            // Promise.resolve(this.hostElement).then(eventMap['ytd-comments::dataChanged_']).catch(console.warn);
            return this.detached498();
          }
        }

        cProto._createPropertyObserver('data', '_dataChanged498', undefined)
        cProto._dataChanged498 = function () {
          // console.log('_dataChanged498', this.hostElement)
          Promise.resolve(this.hostElement).then(eventMap['ytd-comments::_dataChanged498']).catch(console.warn);
        }


        // if (!cProto.dataChanged498_ && typeof cProto.dataChanged_ === 'function') {
        //   cProto.dataChanged498_ = cProto.dataChanged_;
        //   cProto.dataChanged_ = function () {
        //     Promise.resolve(this.hostElement).then(eventMap['ytd-comments::dataChanged_']).catch(console.warn);
        //     return this.dataChanged498_();
        //   }
        // }

        makeInitAttached('ytd-comments');

      },

      'ytd-comments::_dataChanged498': (hostElement) => {
        // console.log(18984, hostElement.hasAttribute('tyt-comments-area'))
        if (!hostElement.hasAttribute000('tyt-comments-area')) return;
        let commentsDataStatus = 0;
        const cnt = insp(hostElement);
        const data = cnt ? cnt.data : null
        const contents = data ? data.contents : null;
        if (data) {
          if (contents && contents.length === 1 && contents[0].messageRenderer) {
            commentsDataStatus = 2;
          }
          if (contents && contents.length > 1 && contents[0].commentThreadRenderer) {
            commentsDataStatus = 1;
          }
        }
        if (commentsDataStatus) {
          hostElement.setAttribute111('tyt-comments-data-status', commentsDataStatus);
          // ytdFlexyElm.setAttribute111('tyt-comment-disabled', '')
        } else {
          // ytdFlexyElm.removeAttribute000('tyt-comment-disabled')
          hostElement.removeAttribute000('tyt-comments-data-status')
        }
        Promise.resolve(hostElement).then(eventMap['settingCommentsVideoId']).catch(console.warn);
      },

      'ytd-comments::attached': async (hostElement) => {

        if (invalidFlexyParent(hostElement)) return;

        // if (inPageRearrange) return;
        DEBUG_5084 && console.log(5084, 'ytd-comments::attached');
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;
        // if (hostElement.__connectedFlg__ !== 4) return;
        // hostElement.__connectedFlg__ = 5;
        if (!hostElement || hostElement.id !== 'comments') return;
        // if (!hostElement || hostElement.closest('[hidden]')) return;
        elements.comments = hostElement;
        console.log('ytd-comments::attached')
        Promise.resolve(hostElement).then(eventMap['settingCommentsVideoId']).catch(console.warn);

        aoComment.observe(hostElement, { attributes: true });
        hostElement.setAttribute111('tyt-comments-area', '');

        const lockId = lockSet['rightTabReadyLock02'];
        await rightTabsProvidedPromise.then();
        if (lockGet['rightTabReadyLock02'] !== lockId) return;

        if (elements.comments !== hostElement) return;
        if (hostElement.isConnected === false) return;
        console.log(7932, 'comments');

        // if(!elements.comments || elements.comments.isConnected === false) return;
        if (hostElement && !hostElement.closest('#right-tabs')) {
          document.querySelector('#tab-comments').assignChildren111(null, hostElement, null);
        } else {

          const shouldTabVisible = elements.comments && elements.comments.closest('#tab-comments') && !elements.comments.closest('[hidden]');

          document.querySelector('[tyt-tab-content="#tab-comments"]').classList.toggle('tab-btn-hidden', !shouldTabVisible);

          //   document.querySelector('#tab-comments').classList.remove('tab-content-hidden')
          //   document.querySelector('[tyt-tab-content="#tab-comments"]').classList.remove('tab-btn-hidden')

          Promise.resolve(lockSet['removeKeepCommentsScrollerLock']).then(removeKeepCommentsScroller).catch(console.warn);

        }

      },
      'ytd-comments::detached': (hostElement) => {
        // if (inPageRearrange) return;
        DEBUG_5084 && console.log(5084, 'ytd-comments::detached');
        // console.log(858, hostElement)
        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;

        if (hostElement.hasAttribute000('tyt-comments-area')) {
          // foComments.disconnect();
          // foComments.takeRecords();
          hostElement.removeAttribute000('tyt-comments-area');
          // document.querySelector('#tab-comments').classList.add('tab-content-hidden')
          // document.querySelector('[tyt-tab-content="#tab-comments"]').classList.add('tab-btn-hidden')


          aoComment.disconnect();
          aoComment.takeRecords();
          elements.comments = null;

          document.querySelector('[tyt-tab-content="#tab-comments"]').classList.add('tab-btn-hidden');

          Promise.resolve(lockSet['removeKeepCommentsScrollerLock']).then(removeKeepCommentsScroller).catch(console.warn);
        }


      },


      'ytd-comments-header-renderer::defined': (cProto) => {

        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-comments-header-renderer::attached']).catch(console.warn);
            Promise.resolve(this.hostElement).then(eventMap['ytd-comments-header-renderer::dataChanged']).catch(console.warn); // force dataChanged on attached
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-comments-header-renderer::detached']).catch(console.warn);
            return this.detached498();
          }
        }

        if (!cProto.dataChanged498 && typeof cProto.dataChanged === 'function') {
          cProto.dataChanged498 = cProto.dataChanged;
          cProto.dataChanged = function () {
            Promise.resolve(this.hostElement).then(eventMap['ytd-comments-header-renderer::dataChanged']).catch(console.warn);
            return this.dataChanged498();
          }
        }


        makeInitAttached('ytd-comments-header-renderer');


      },


      'ytd-comments-header-renderer::attached': (hostElement) => {

        if (invalidFlexyParent(hostElement)) return;

        // if (inPageRearrange) return;
        DEBUG_5084 && console.log(5084, 'ytd-comments-header-renderer::attached');
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;
        // if (hostElement.__connectedFlg__ !== 4) return;
        // hostElement.__connectedFlg__ = 5;
        if (!hostElement || !hostElement.classList.contains('ytd-item-section-renderer')) return;
        // console.log(12991, 'ytd-comments-header-renderer::attached')
        const targetElement = document.querySelector('[tyt-comments-area] ytd-comments-header-renderer');
        if (hostElement === targetElement) {
          hostElement.setAttribute111('tyt-comments-header-field', '');
        } else {
          const parentNode = hostElement.parentNode;
          if (parentNode instanceof HTMLElement_ && parentNode.querySelector('[tyt-comments-header-field]')) {
            hostElement.setAttribute111('tyt-comments-header-field', '')
          }
        }

      },

      'ytd-comments-header-renderer::detached': (hostElement) => {
        // if (inPageRearrange) return;
        DEBUG_5084 && console.log(5084, 'ytd-comments-header-renderer::detached');

        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;
        // console.log(12992, 'ytd-comments-header-renderer::detached')
        if (hostElement.hasAttribute000('field-of-cm-count')) {
          hostElement.removeAttribute000('field-of-cm-count');

          const cmCount = document.querySelector('#tyt-cm-count');
          if (cmCount && !document.querySelector('#tab-comments ytd-comments-header-renderer[field-of-cm-count]')) {
            cmCount.textContent = '';
          }
        }
        if (hostElement.hasAttribute000('tyt-comments-header-field')) {
          hostElement.removeAttribute000('tyt-comments-header-field');
        }

      },

      'ytd-comments-header-renderer::dataChanged': (hostElement) => {

        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;

        const ytdFlexyElm = elements.flexy;

        let b = false;
        const cnt = insp(hostElement);
        if (cnt && hostElement.closest('#tab-comments') && document.querySelector('#tab-comments ytd-comments-header-renderer') === hostElement) {
          b = true;
        } else if (hostElement instanceof HTMLElement_ && hostElement.parentNode instanceof HTMLElement_ && hostElement.parentNode.querySelector('[tyt-comments-header-field]')) {
          b = true;
        }
        if (b) {
          hostElement.setAttribute111('tyt-comments-header-field', '')
          ytdFlexyElm && ytdFlexyElm.removeAttribute000('tyt-comment-disabled');
        }

        if (hostElement.hasAttribute000('tyt-comments-header-field') && hostElement.isConnected === true) {
          if (!headerMutationObserver) {
            headerMutationObserver = new MutationObserver(eventMap['ytd-comments-header-renderer::deferredCounterUpdate']);
          }
          headerMutationObserver.observe(hostElement.parentNode, { subtree: false, childList: true })
          if (!headerMutationTmpNode) headerMutationTmpNode = document.createElementNS('http://www.w3.org/2000/svg', 'defs');
          const tmpNode = headerMutationTmpNode;
          hostElement.insertAdjacentElement("afterend", tmpNode);
          tmpNode.remove();
        }
      },

      'ytd-comments-header-renderer::deferredCounterUpdate': () => {

        const nodes = document.querySelectorAll('#tab-comments ytd-comments-header-renderer[class]');
        if (nodes.length === 1) {
          const hostElement = nodes[0];
          const cnt = insp(hostElement);
          const data = cnt.data;
          if (!data) return;
          let ez = '';
          if (data.commentsCount && data.commentsCount.runs && data.commentsCount.runs.length >= 1) {
            let max = -1;
            const z = data.commentsCount.runs.map(e => {
              let c = e.text.replace(/\D+/g, '').length;
              if (c > max) max = c;
              return [e.text, c];
            }).filter(a => a[1] === max);
            if (z.length >= 1) {
              ez = z[0][0];
            }
          } else if (data.countText && data.countText.runs && data.countText.runs.length >= 1) {
            let max = -1;
            const z = data.countText.runs.map(e => {
              let c = e.text.replace(/\D+/g, '').length;
              if (c > max) max = c;
              return [e.text, c];
            }).filter(a => a[1] === max);
            if (z.length >= 1) {
              ez = z[0][0];
            }
          }
          const cmCount = document.querySelector('#tyt-cm-count');
          if (ez) {
            hostElement.setAttribute111('field-of-cm-count', '');
            cmCount && (cmCount.textContent = ez.trim());
          } else {
            hostElement.removeAttribute000('field-of-cm-count');
            cmCount && (cmCount.textContent = '');
            console.warn('no text for #tyt-cm-count')
          }
        }
      },

      'ytd-expander::defined': (cProto) => {
        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-expander::attached']).catch(console.warn);
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-expander::detached']).catch(console.warn);
            return this.detached498();
          }
        }
        if (!cProto.calculateCanCollapse498 && typeof cProto.calculateCanCollapse === 'function') {
          cProto.calculateCanCollapse498 = cProto.calculateCanCollapse;
          cProto.calculateCanCollapse = funcCanCollapse;


        }

        if (!cProto.childrenChanged498 && typeof cProto.childrenChanged === 'function') {
          cProto.childrenChanged498 = cProto.childrenChanged;
          cProto.childrenChanged = function () {
            Promise.resolve(this.hostElement).then(eventMap['ytd-expander::childrenChanged']).catch(console.warn);
            return this.childrenChanged498();
          }
        }

        /*
 
        console.log('ytd-expander::defined 01');
        
        CustomElementRegistry.prototype.get.call(customElements, 'ytd-expander').prototype.connectedCallback = connectedCallbackY(CustomElementRegistry.prototype.get.call(customElements, 'ytd-expander').prototype.connectedCallback)
        CustomElementRegistry.prototype.get.call(customElements, 'ytd-expander').prototype.disconnectedCallback = disconnectedCallbackY(CustomElementRegistry.prototype.get.call(customElements, 'ytd-expander').prototype.disconnectedCallback)
        
        console.log('ytd-expander::defined 02');
 
        */

        makeInitAttached('ytd-expander');

      },


      'ytd-expander::childrenChanged': (hostElement) => {

        if (hostElement instanceof Node && hostElement.hasAttribute000('hidden') && hostElement.hasAttribute000('tyt-main-info') && hostElement.firstElementChild) {
          hostElement.removeAttribute('hidden');
        }
      },

      'ytd-expandable-video-description-body-renderer::defined': (cProto) => {


        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-expandable-video-description-body-renderer::attached']).catch(console.warn);
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-expandable-video-description-body-renderer::detached']).catch(console.warn);
            return this.detached498();
          }
        }

        makeInitAttached('ytd-expandable-video-description-body-renderer')


      },

      'ytd-expandable-video-description-body-renderer::attached': async (hostElement) => {


        if (hostElement instanceof HTMLElement_ && isPageDOM(hostElement, '[tyt-info-renderer]') && !hostElement.matches('[tyt-main-info]')) {


          elements.infoExpander = hostElement;
          console.log(128384, elements.infoExpander)


          // console.log(1299, hostElement.parentNode, isRightTabsInserted)

          infoExpanderElementProvidedPromise.resolve();
          hostElement.setAttribute111('tyt-main-info', '');
          if (plugin.autoExpandInfoDesc.toUse) {
            plugin.autoExpandInfoDesc.onMainInfoSet(hostElement);
          }

          const lockId = lockSet['rightTabReadyLock03'];
          await rightTabsProvidedPromise.then();
          if (lockGet['rightTabReadyLock03'] !== lockId) return;

          if (elements.infoExpander !== hostElement) return;
          if (hostElement.isConnected === false) return;
          console.log(7932, 'infoExpander');

          elements.infoExpander.classList.add('tyt-main-info'); // add a classname for it

          const infoExpander = elements.infoExpander;
          // const infoExpanderBack = elements.infoExpanderBack;


          // console.log(5438,infoExpander, qt);

          // const dummy = document.createElement('noscript');
          // dummy.setAttribute000('id', 'info-expander-vid');
          // dummy.setAttribute000('video-id', getCurrentVideoId());
          // infoExpander.insertBefore000(dummy, infoExpander.firstChild);

          // aoInfo.observe(infoExpander, { attributes: true, attributeFilter: ['tyt-display-for', 'tyt-video-id'] });
          // zoInfo.observe(infoExpanderBack, { attributes: true, attributeFilter: ['hidden', 'attr-w20ts'], childList: true, subtree: true});
          // new MutationObserver(()=>{
          //   console.log(591499)
          // }).observe(infoExpanderBack, {childList: true, subtree: true})

          const inlineExpanderElm = infoExpander.querySelector('ytd-text-inline-expander');
          if (inlineExpanderElm) {
            const mo = new MutationObserver(() => {
              const p = document.querySelector('#tab-info ytd-text-inline-expander');
              sessionStorage.__$$tmp_UseAutoExpandInfoDesc$$__ = p && p.hasAttribute('is-expanded') ? '1' : '';
              if (p) fixInlineExpanderContent();
            });
            mo.observe(inlineExpanderElm, { attributes: ['is-expanded', 'attr-6v8qu', 'hidden'], subtree: true }); // hidden + subtree to trigger the fn by delayedUpdate
            inlineExpanderElm.incAttribute111('attr-6v8qu');
            const cnt = insp(inlineExpanderElm);

            if (cnt) fixInlineExpanderDisplay(cnt);

          }


          if (infoExpander && !infoExpander.closest('#right-tabs')) {
            document.querySelector('#tab-info').assignChildren111(null, infoExpander, null);
          } else {

            if (document.querySelector('[tyt-tab-content="#tab-info"]')) {
              const shouldTabVisible = elements.infoExpander && elements.infoExpander.closest('#tab-info');
              document.querySelector('[tyt-tab-content="#tab-info"]').classList.toggle('tab-btn-hidden', !shouldTabVisible);
            }
          }


          Promise.resolve(lockSet['infoFixLock']).then(infoFix).catch(console.warn); // required when the page is switched from channel to watch

          // if (infoExpander && infoExpander.closest('#right-tabs')) Promise.resolve(lockSet['infoFixLock']).then(infoFix).catch(console.warn);

          // infoExpanderBack.incAttribute111('attr-w20ts');

          // return;
        }


        DEBUG_5084 && console.log(5084, 'ytd-expandable-video-description-body-renderer::attached');
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;

        if (isPageDOM(hostElement, '#tab-info [tyt-main-info]')) {

          // const cnt = insp(hostElement);
          // if(cnt.data){
          //   cnt.data = Object.assign({}, cnt.data);
          // }


        } else if (!hostElement.closest('#tab-info')) {


          const bodyRenderer = hostElement;
          let bodyRendererNew = document.querySelector('ytd-expandable-video-description-body-renderer[tyt-info-renderer]');
          if (!bodyRendererNew) {
            bodyRendererNew = document.createElement('ytd-expandable-video-description-body-renderer');
            bodyRendererNew.setAttribute('tyt-info-renderer', '');
            nsTemplateObtain().appendChild(bodyRendererNew);
          }
          // document.querySelector('#tab-info').assignChildren111(null, bodyRendererNew, null);


          const cnt = insp(bodyRendererNew);
          cnt.data = Object.assign({}, insp(bodyRenderer).data);

          const inlineExpanderElm = bodyRendererNew.querySelector('ytd-text-inline-expander');
          const inlineExpanderCnt = insp(inlineExpanderElm);
          fixInlineExpanderMethods(inlineExpanderCnt);

          // insp(bodyRendererNew).data = insp(bodyRenderer).data;

          // if((bodyRendererNew.hasAttribute('hidden')?1:0)^(bodyRenderer.hasAttribute('hidden')?1:0)){
          //   if(bodyRenderer.hasAttribute('hidden')) bodyRendererNew.setAttribute('hidden', '');
          //   else bodyRendererNew.removeAttribute('hidden');
          // }

          elements.infoExpanderRendererBack = bodyRenderer;
          elements.infoExpanderRendererFront = bodyRendererNew;
          bodyRenderer.setAttribute('tyt-info-renderer-back', '');
          bodyRendererNew.setAttribute('tyt-info-renderer-front', '');

          // elements.infoExpanderBack = {{ytd-expander}};


        }



      },

      'ytd-expandable-video-description-body-renderer::detached': async (hostElement) => {
        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;
        // console.log(5992, hostElement)
        if (hostElement.hasAttribute000('tyt-main-info')) {
          DEBUG_5084 && console.log(5084, 'ytd-expandable-video-description-body-renderer::detached');
          elements.infoExpander = null;
          hostElement.removeAttribute000('tyt-main-info');
        }
      },

      'ytd-expander::attached': async (hostElement) => {

        if (invalidFlexyParent(hostElement)) return;

        // if (inPageRearrange) return;
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;
        // if (hostElement.__connectedFlg__ !== 4) return;
        // hostElement.__connectedFlg__ = 5;
        // console.log(4959, hostElement)


        if (hostElement instanceof HTMLElement_ && hostElement.matches('[tyt-comments-area] #contents ytd-expander#expander') && !hostElement.matches('[hidden] ytd-expander#expander')) {

          hostElement.setAttribute111('tyt-content-comment-entry', '')
          ioComment.observe(hostElement);
        }

        // --------------

        // else if (hostElement instanceof HTMLElement_ && hostElement.matches('ytd-expander#expander.style-scope.ytd-expandable-video-description-body-renderer')) {
        //   //  && !hostElement.matches('#right-tabs ytd-expander#expander, [hidden] ytd-expander#expander')

        //   console.log(5084, 'ytd-expander::attached');
        //   const bodyRenderer = hostElement.closest('ytd-expandable-video-description-body-renderer');
        //   let bodyRendererNew = document.querySelector('ytd-expandable-video-description-body-renderer[tyt-info-renderer]');
        //   if (!bodyRendererNew) {
        //     bodyRendererNew = document.createElement('ytd-expandable-video-description-body-renderer');
        //     bodyRendererNew.setAttribute('tyt-info-renderer', '');
        //     nsTemplateObtain().appendChild(bodyRendererNew);
        //   }
        //   // document.querySelector('#tab-info').assignChildren111(null, bodyRendererNew, null);

        //   insp(bodyRendererNew).data = insp(bodyRenderer).data;
        //   // if((bodyRendererNew.hasAttribute('hidden')?1:0)^(bodyRenderer.hasAttribute('hidden')?1:0)){
        //   //   if(bodyRenderer.hasAttribute('hidden')) bodyRendererNew.setAttribute('hidden', '');
        //   //   else bodyRendererNew.removeAttribute('hidden');
        //   // }

        //   elements.infoExpanderRendererBack = bodyRenderer;
        //   elements.infoExpanderRendererFront = bodyRendererNew;
        //   bodyRenderer.setAttribute('tyt-info-renderer-back','')
        //   bodyRendererNew.setAttribute('tyt-info-renderer-front','')

        //   elements.infoExpanderBack = hostElement;

        // }

        // --------------

        // console.log('ytd-expander::attached', hostElement);



      },

      'ytd-expander::detached': (hostElement) => {
        // if (inPageRearrange) return;
        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;
        // console.log(5992, hostElement)
        if (hostElement.hasAttribute000('tyt-content-comment-entry')) {
          ioComment.unobserve(hostElement);
          hostElement.removeAttribute000('tyt-content-comment-entry')
        } else if (hostElement.hasAttribute000('tyt-main-info')) {
          DEBUG_5084 && console.log(5084, 'ytd-expander::detached');
          elements.infoExpander = null;
          hostElement.removeAttribute000('tyt-main-info');
        }
        // console.log('ytd-expander::detached', hostElement);
      },


      'ytd-live-chat-frame::defined': (cProto) => {

        let lastDomAction = 0;

        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            lastDomAction = Date.now();
            // console.log('chat868-attached', Date.now());
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-live-chat-frame::attached']).catch(console.warn);
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            lastDomAction = Date.now();
            // console.log('chat868-detached', Date.now());
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-live-chat-frame::detached']).catch(console.warn);
            return this.detached498();
          }
        }

        if (typeof cProto.urlChanged === 'function' && !cProto.urlChanged66 && !cProto.urlChangedAsync12 && cProto.urlChanged.length === 0) {
          cProto.urlChanged66 = cProto.urlChanged;
          let ath = 0;
          cProto.urlChangedAsync12 = async function () {
            await this.__urlChangedAsyncT689__;
            const t = ath = (ath & 1073741823) + 1;
            const chatframe = this.chatframe || (this.$ || 0).chatframe || 0;
            if (chatframe instanceof HTMLIFrameElement) {
              if (chatframe.contentDocument === null) {
                await Promise.resolve('#').catch(console.warn);
                if (t !== ath) return;
              }
              await new Promise(resolve => setTimeout_(resolve, 1)).catch(console.warn); // neccessary for Brave
              if (t !== ath) return;
              const isBlankPage = !this.data || this.collapsed;
              const p1 = new Promise(resolve => setTimeout_(resolve, 706)).catch(console.warn);
              const p2 = new Promise(resolve => {
                (new IntersectionObserver((entries, observer) => {
                  for (const entry of entries) {
                    const rect = entry.boundingClientRect || 0;
                    if (isBlankPage || (rect.width > 0 && rect.height > 0)) {
                      observer.disconnect();
                      resolve('#');
                      break;
                    }
                  }
                })).observe(chatframe);
              }).catch(console.warn);
              await Promise.race([p1, p2]);
              if (t !== ath) return;
            }
            this.urlChanged66();
          }
          cProto.urlChanged = function () {
            const t = this.__urlChangedAsyncT688__ = (this.__urlChangedAsyncT688__ & 1073741823) + 1;
            nextBrowserTick(() => {
              if (t !== this.__urlChangedAsyncT688__) return;
              this.urlChangedAsync12();
            });
          }
        }

        makeInitAttached('ytd-live-chat-frame');

      },

      'ytd-live-chat-frame::attached': async (hostElement) => {

        if (invalidFlexyParent(hostElement)) return;

        // if (inPageRearrange) return;
        DEBUG_5084 && console.log(5084, 'ytd-live-chat-frame::attached');
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;
        // if (hostElement.__connectedFlg__ !== 4) return;
        // hostElement.__connectedFlg__ = 5;
        if (!hostElement || hostElement.id !== 'chat') return;
        console.log('ytd-live-chat-frame::attached')

        const lockId = lockSet['ytdLiveAttachedLock'];
        const chatElem = await getGeneralChatElement();
        if (lockGet['ytdLiveAttachedLock'] !== lockId) return;

        if (chatElem === hostElement) {
          elements.chat = chatElem;
          aoChat.observe(chatElem, { attributes: true });
          const isFlexyReady = (elements.flexy instanceof Element);
          chatElem.setAttribute111('tyt-active-chat-frame', isFlexyReady ? 'CF' : 'C');

          const chatContainer = chatElem ? (chatElem.closest('#chat-container') || chatElem) : null;
          if (chatContainer && !chatContainer.hasAttribute000('tyt-chat-container')) {
            for (const p of document.querySelectorAll('[tyt-chat-container]')) {
              p.removeAttribute000('[tyt-chat-container]');
            }
            chatContainer.setAttribute111('tyt-chat-container', '')
          }
          const cnt = insp(hostElement);
          const q = cnt.__urlChangedAsyncT688__;
          const p = cnt.__urlChangedAsyncT689__ = new PromiseExternal();
          setTimeout_(() => {
            if (p !== cnt.__urlChangedAsyncT689__) return;
            if (cnt.isAttached === true && hostElement.isConnected === true) {
              p.resolve();
              if (q === cnt.__urlChangedAsyncT688__) {
                cnt.urlChanged();
              }
            }
          }, 320);
          Promise.resolve(lockSet['layoutFixLock']).then(layoutFix);
        } else {
          console.log('Issue found in ytd-live-chat-frame::attached', chatElem, hostElement);
        }
      },

      'ytd-live-chat-frame::detached': (hostElement) => {
        // if (inPageRearrange) return;
        DEBUG_5084 && console.log(5084, 'ytd-live-chat-frame::detached');

        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;
        console.log('ytd-live-chat-frame::detached')
        if (hostElement.hasAttribute000('tyt-active-chat-frame')) {
          aoChat.disconnect();
          aoChat.takeRecords();
          hostElement.removeAttribute000('tyt-active-chat-frame');
          elements.chat = null;

          const ytdFlexyElm = elements.flexy;
          if (ytdFlexyElm) {
            ytdFlexyElm.removeAttribute000('tyt-chat-collapsed')
            ytdFlexyElm.setAttribute111('tyt-chat', '');
          }
        }

      },

      'ytd-engagement-panel-section-list-renderer::defined': (cProto) => {

        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-engagement-panel-section-list-renderer::attached']).catch(console.warn);
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-engagement-panel-section-list-renderer::detached']).catch(console.warn);
            return this.detached498();
          }
        }
        makeInitAttached('ytd-engagement-panel-section-list-renderer');
      },

      'ytd-engagement-panel-section-list-renderer::bindTarget': (hostElement) => {


        if (hostElement.matches('#panels.ytd-watch-flexy > ytd-engagement-panel-section-list-renderer[target-id][visibility]')) {
          hostElement.setAttribute111('tyt-egm-panel', '');
          Promise.resolve(lockSet['updateEgmPanelsLock']).then(updateEgmPanels).catch(console.warn);
          aoEgmPanels.observe(hostElement, { attributes: true, attributeFilter: ['visibility', 'hidden'] });

          // console.log(5094, 2, 'ytd-engagement-panel-section-list-renderer::attached', hostElement);
        }

      },


      'ytd-engagement-panel-section-list-renderer::attached': (hostElement) => {

        if (invalidFlexyParent(hostElement)) return;

        // if (inPageRearrange) return;

        DEBUG_5084 && console.log(5084, 'ytd-engagement-panel-section-list-renderer::attached');
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;
        // if (hostElement.__connectedFlg__ !== 4) return;
        // hostElement.__connectedFlg__ = 5;
        // console.log('ytd-engagement-panel-section-list-renderer::attached', hostElement)
        // console.log(5094, 1, 'ytd-engagement-panel-section-list-renderer::attached', hostElement);

        if (!hostElement.matches('#panels.ytd-watch-flexy > ytd-engagement-panel-section-list-renderer')) return;


        if (hostElement.hasAttribute000('target-id') && hostElement.hasAttribute000('visibility')) {

          Promise.resolve(hostElement).then(eventMap['ytd-engagement-panel-section-list-renderer::bindTarget']).catch(console.warn);
        } else {

          hostElement.setAttribute000('tyt-egm-panel-jclmd', '');
          moEgmPanelReady.observe(hostElement, { attributes: true, attributeFilter: ['visibility', 'target-id'] });

        }
      },

      'ytd-engagement-panel-section-list-renderer::detached': (hostElement) => {
        // if (inPageRearrange) return;

        DEBUG_5084 && console.log(5084, 'ytd-engagement-panel-section-list-renderer::detached');
        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;
        if (hostElement.hasAttribute000('tyt-egm-panel')) {
          hostElement.removeAttribute000('tyt-egm-panel');
          Promise.resolve(lockSet['updateEgmPanelsLock']).then(updateEgmPanels).catch(console.warn);
        } else if (hostElement.hasAttribute000('tyt-egm-panel-jclmd')) {
          hostElement.removeAttribute000('tyt-egm-panel-jclmd');
          moEgmPanelReadyClearFn();
        }
      },

      'ytd-watch-metadata::defined': (cProto) => {

        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-watch-metadata::attached']).catch(console.warn);
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-watch-metadata::detached']).catch(console.warn);
            return this.detached498();
          }
        }

        makeInitAttached('ytd-watch-metadata');
      },



      'ytd-watch-metadata::attached': (hostElement) => {

        if (invalidFlexyParent(hostElement)) return;

        // if (inPageRearrange) return;

        DEBUG_5084 && console.log(5084, 'ytd-watch-metadata::attached');
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;
        // if (hostElement.__connectedFlg__ !== 4) return;
        // hostElement.__connectedFlg__ = 5;

        if (plugin.fullChannelNameOnHover.activated) plugin.fullChannelNameOnHover.onNavigateFinish();
      },

      'ytd-watch-metadata::detached': (hostElement) => {
        // if (inPageRearrange) return;

        DEBUG_5084 && console.log(5084, 'ytd-watch-metadata::detached');
        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;

      },



      'ytd-playlist-panel-renderer::defined': (cProto) => {

        if (!cProto.attached498 && typeof cProto.attached === 'function') {
          cProto.attached498 = cProto.attached;
          cProto.attached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-playlist-panel-renderer::attached']).catch(console.warn);
            return this.attached498();
          }
        }
        if (!cProto.detached498 && typeof cProto.detached === 'function') {
          cProto.detached498 = cProto.detached;
          cProto.detached = function () {
            if (!inPageRearrange) Promise.resolve(this.hostElement).then(eventMap['ytd-playlist-panel-renderer::detached']).catch(console.warn);
            return this.detached498();
          }
        }

        makeInitAttached('ytd-playlist-panel-renderer');
      },



      'ytd-playlist-panel-renderer::attached': (hostElement) => {

        if (invalidFlexyParent(hostElement)) return;

        // if (inPageRearrange) return;

        DEBUG_5084 && console.log(5084, 'ytd-playlist-panel-renderer::attached');
        if (hostElement instanceof Element) hostElement[__attachedSymbol__] = true;
        if (!(hostElement instanceof HTMLElement_) || !(hostElement.classList.length > 0) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== true) return;
        // if (hostElement.__connectedFlg__ !== 4) return;
        // hostElement.__connectedFlg__ = 5;

        elements.playlist = hostElement;

        aoPlayList.observe(hostElement, { attributes: true, attributeFilter: ['hidden', 'collapsed', 'attr-1y6nu'] });
        hostElement.incAttribute111('attr-1y6nu')


      },

      'ytd-playlist-panel-renderer::detached': (hostElement) => {
        // if (inPageRearrange) return;

        DEBUG_5084 && console.log(5084, 'ytd-playlist-panel-renderer::detached');
        if (!(hostElement instanceof HTMLElement_) || hostElement.closest('noscript')) return;
        if (hostElement.isConnected !== false) return;
        // if (hostElement.__connectedFlg__ !== 8) return;
        // hostElement.__connectedFlg__ = 9;

      },





      '_yt_playerProvided': () => {
        mLoaded.flag |= 4;
        document.documentElement.setAttribute111('tabview-loaded', mLoaded.makeString());
      },
      'relatedElementProvided': (target) => {
        if (target.closest('[hidden]')) return;
        elements.related = target;
        console.log('relatedElementProvided')
        videosElementProvidedPromise.resolve();
      },
      'onceInfoExpanderElementProvidedPromised': () => {
        console.log('hide-default-text-inline-expander');
        const ytdFlexyElm = elements.flexy;
        if (ytdFlexyElm) {
          ytdFlexyElm.setAttribute111('hide-default-text-inline-expander', '');
        }
      },

      'refreshSecondaryInner': (lockId) => {


        if (lockGet['refreshSecondaryInnerLock'] !== lockId) return;
        /*
   
        ytd-watch-flexy:not([panels-beside-player]):not([fixed-panels]) #panels-full-bleed-container.ytd-watch-flexy{
            display: none;}
   
  #player-full-bleed-container.ytd-watch-flexy{
      position: relative;
      flex: 1;}
   
        */

        const ytdFlexyElm = elements.flexy;
        // if(ytdFlexyElm && ytdFlexyElm.matches('ytd-watch-flexy[fixed-panels][theater]')){
        //   // ytdFlexyElm.fixedPanels = true;
        //   ytdFlexyElm.removeAttribute000('fixed-panels');
        // }

        if (ytdFlexyElm && ytdFlexyElm.matches('ytd-watch-flexy[theater][flexy][full-bleed-player]:not([full-bleed-no-max-width-columns])')) {
          // ytdFlexyElm.fullBleedNoMaxWidthColumns = true;
          ytdFlexyElm.setAttribute111('full-bleed-no-max-width-columns', '');
        }

        const related = elements.related;
        if (related && related.isConnected && !related.closest('#right-tabs #tab-videos')) {
          document.querySelector('#tab-videos').assignChildren111(null, related, null);
        }
        const infoExpander = elements.infoExpander;
        if (infoExpander && infoExpander.isConnected && !infoExpander.closest('#right-tabs #tab-info')) {
          document.querySelector('#tab-info').assignChildren111(null, infoExpander, null);
        } else {
          // if (infoExpander && ytdFlexyElm && shouldFixInfo) {
          //   shouldFixInfo = false;
          //   Promise.resolve(lockSet['infoFixLock']).then(infoFix).catch(console.warn);
          // }
        }

        const commentsArea = elements.comments;
        if (commentsArea) {
          const isConnected = commentsArea.isConnected;
          if (isConnected && !commentsArea.closest('#right-tabs #tab-comments')) {
            const tab = document.querySelector('#tab-comments');
            tab.assignChildren111(null, commentsArea, null);
          } else {
            // if (!isConnected || tab.classList.contains('tab-content-hidden')) removeKeepCommentsScroller();
          }
        }







      },

      'yt-navigate-finish': (evt) => {

        const ytdAppElm = document.querySelector('ytd-page-manager#page-manager.style-scope.ytd-app');
        const ytdAppCnt = insp(ytdAppElm);
        pageType = ytdAppCnt ? (ytdAppCnt.data || 0).page : null;

        if (!document.querySelector('ytd-watch-flexy #player')) return;
        // shouldFixInfo = true;
        // console.log('yt-navigate-finish')
        const flexyArr = [...document.querySelectorAll('ytd-watch-flexy')].filter(e => !e.closest('[hidden]') && e.querySelector('#player'));
        if (flexyArr.length === 1) {
          // const lockId = lockSet['yt-navigate-finish-videos'];
          elements.flexy = flexyArr[0];
          if (isRightTabsInserted) {
            Promise.resolve(lockSet['refreshSecondaryInnerLock']).then(eventMap['refreshSecondaryInner']).catch(console.warn);
            Promise.resolve(lockSet['removeKeepCommentsScrollerLock']).then(removeKeepCommentsScroller).catch(console.warn);
          } else {
            navigateFinishedPromise.resolve();
            if (plugin.minibrowser.toUse) plugin.minibrowser.activate();
            if (plugin.autoExpandInfoDesc.toUse) plugin.autoExpandInfoDesc.activate();
            if (plugin.fullChannelNameOnHover.toUse) plugin.fullChannelNameOnHover.activate();
          }
          const chat = elements.chat;
          if (chat instanceof Element) {
            chat.setAttribute111('tyt-active-chat-frame', 'CF'); // chat and flexy ready
          }
          const infoExpander = elements.infoExpander;
          if (infoExpander && infoExpander.closest('#right-tabs')) {
            Promise.resolve(lockSet['infoFixLock']).then(infoFix).catch(console.warn);
          }
          Promise.resolve(lockSet['layoutFixLock']).then(layoutFix);
          if (plugin.fullChannelNameOnHover.activated) plugin.fullChannelNameOnHover.onNavigateFinish();
        }
      },

      'onceInsertRightTabs': () => {


        // if(lockId !== lockGet['yt-navigate-finish-videos']) return;
        const related = elements.related;
        let rightTabs = document.querySelector('#right-tabs');
        if (!document.querySelector('#right-tabs') && related) {
          getLangForPage();
          let docTmp = document.createElement('template');
          docTmp.innerHTML = createHTML(getTabsHTML());
          let newElm = docTmp.content.firstElementChild;
          if (newElm !== null) {
            inPageRearrange = true;
            related.parentNode.insertBefore000(newElm, related);
            inPageRearrange = false;
          }
          rightTabs = newElm;
          rightTabs.querySelector('[tyt-tab-content="#tab-comments"]').classList.add('tab-btn-hidden');

          const secondaryWrapper = document.createElement('secondary-wrapper');
          const secondaryInner = document.querySelector('#secondary-inner.style-scope.ytd-watch-flexy');

          inPageRearrange = true;
          secondaryWrapper.replaceChildren000(...secondaryInner.childNodes);
          secondaryInner.insertBefore000(secondaryWrapper, secondaryInner.firstChild);
          inPageRearrange = false;

          rightTabs.querySelector('#material-tabs').addEventListener('click', eventMap['tabs-btn-click'], true)

          inPageRearrange = true;
          if (!rightTabs.closest('secondary-wrapper')) secondaryWrapper.appendChild000(rightTabs);
          inPageRearrange = false;

        }
        if (rightTabs) {
          isRightTabsInserted = true;
          const ioTabBtns = new IntersectionObserver((entries) => {
            for (const entry of entries) {
              const rect = entry.boundingClientRect;
              entry.target.classList.toggle('tab-btn-visible', rect.width && rect.height)
            }
          }, { rootMargin: '0px' });
          for (const btn of document.querySelectorAll('.tab-btn[tyt-tab-content]')) {
            ioTabBtns.observe(btn);
          }
          if (!related.closest('#right-tabs')) {
            document.querySelector('#tab-videos').assignChildren111(null, related, null);
          }
          const infoExpander = elements.infoExpander;
          if (infoExpander && !infoExpander.closest('#right-tabs')) {
            document.querySelector('#tab-info').assignChildren111(null, infoExpander, null);
          }
          const commentsArea = elements.comments;
          if (commentsArea && !commentsArea.closest('#right-tabs')) {
            document.querySelector('#tab-comments').assignChildren111(null, commentsArea, null);
          }
          rightTabsProvidedPromise.resolve();
          roRightTabs.disconnect();
          roRightTabs.observe(rightTabs);
          const ytdFlexyElm = elements.flexy;
          const aoFlexy = new MutationObserver(eventMap['aoFlexyFn']);
          aoFlexy.observe(ytdFlexyElm, { attributes: true });
          // Promise.resolve(lockSet['tabsStatusCorrectionLock']).then(eventMap['tabsStatusCorrection']).catch(console.warn);

          Promise.resolve(lockSet['fixInitialTabStateLock']).then(eventMap['fixInitialTabStateFn']).catch(console.warn);

          ytdFlexyElm.incAttribute111('attr-7qlsy'); // tabsStatusCorrectionLock and video-id



        }

      },

      'aoFlexyFn': () => {

        Promise.resolve(lockSet['checkCommentsShouldBeHiddenLock']).then(eventMap['checkCommentsShouldBeHidden']).catch(console.warn);

        Promise.resolve(lockSet['refreshSecondaryInnerLock']).then(eventMap['refreshSecondaryInner']).catch(console.warn);

        Promise.resolve(lockSet['tabsStatusCorrectionLock']).then(eventMap['tabsStatusCorrection']).catch(console.warn);

        const videoId = getCurrentVideoId();
        if (videoId !== tmpLastVideoId) {
          tmpLastVideoId = videoId;
          Promise.resolve(lockSet['updateOnVideoIdChangedLock']).then(eventMap['updateOnVideoIdChanged']).catch(console.warn);
        }

      },

      'twoColumnChanged10': (lockId) => {

        if (lockId !== lockGet['twoColumnChanged10Lock']) return;
        for (const continuation of document.querySelectorAll('#tab-videos ytd-watch-next-secondary-results-renderer ytd-continuation-item-renderer')) {
          if (continuation.closest('[hidden]')) continue;
          const cnt = insp(continuation);
          if (typeof cnt.showButton === 'boolean') {
            if (cnt.showButton === false) continue;
            cnt.showButton = false;
            const behavior = (cnt.ytRendererBehavior || cnt);
            if (typeof behavior.invalidate === 'function') {
              behavior.invalidate(!1);
            }
          }
        }

      },

      'tabsStatusCorrection': (lockId) => {
        if (lockId !== lockGet['tabsStatusCorrectionLock']) return;
        const ytdFlexyElm = elements.flexy;
        if (!ytdFlexyElm) return;
        const p = tabAStatus;
        const q = calculationFn(p, 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128);

        let resetForPanelDisappeared = false;
        if (p !== q) {
          console.log(388, p, q)
          let actioned = false;
          if ((p & 128) === 0 && (q & 128) === 128) {
            lastPanel = 'playlist'
          } else if ((p & 8) === 0 && (q & 8) === 8) {
            lastPanel = 'chat'
          } else if ((((p & 4) == 4 && (q & (4 | 8)) == (0 | 0)) || ((p & 8) == 8 && (q & (4 | 8)) === (0 | 0))) && lastPanel === 'chat') {
            // 24 -> 16 = -8; 'd'
            lastPanel = (lastTab || '');
            resetForPanelDisappeared = true;
          } else if ((p & (4 | 8)) === 8 && (q & (4 | 8)) === 4 && lastPanel === 'chat') {
            // click close
            lastPanel = (lastTab || '');
            resetForPanelDisappeared = true;
          } else if ((p & 128) === 128 && (q & 128) === 0 && lastPanel === 'playlist') {

            lastPanel = (lastTab || '');
            resetForPanelDisappeared = true;
          }
          tabAStatus = q;

          let bFixForResizedTab = false;

          if ((q ^ 2) === 2 && bFixForResizedTabLater) {
            bFixForResizedTab = true;
          }

          if ((p & 16) === 16 & (q & 16) === 0) {
            Promise.resolve(lockSet['twoColumnChanged10Lock']).then(eventMap['twoColumnChanged10']).catch(console.warn);
          }

          if ((((p & 2) === 2) ^ ((q & 2) === 2)) && ((q & 2) === 2)) {
            bFixForResizedTab = true;
          }

          // p->q +2
          if ((p & 2) === 0 && (q & 2) === 2 && (p & 128) === 128 && (q & 128) === 128) {
            lastPanel = (lastTab || '');
            ytBtnClosePlaylist();
            actioned = true;
          }

          // p->q +8
          if ((p & (8 | 128)) === (0 | 128) && (q & (8 | 128)) === (8 | 128) && lastPanel === 'chat') {
            lastPanel = (lastTab || '');
            ytBtnClosePlaylist();
            actioned = true;
          }

          // p->q +128
          if ((p & (2 | 128)) === (2 | 0) && (q & (2 | 128)) === (2 | 128) && lastPanel === 'playlist') {
            switchToTab(null);
            actioned = true;
          }

          // p->q +128
          if ((p & (8 | 128)) === (8 | 0) && (q & (8 | 128)) === (8 | 128) && lastPanel === 'playlist') {
            lastPanel = (lastTab || '');
            ytBtnCollapseChat();
            actioned = true;
          }


          // p->q +128
          if ((p & (1 | 16 | 128)) == (1 | 16) && (q & (1 | 16 | 128)) == (1 | 16 | 128)) {
            ytBtnCancelTheater();
            actioned = true;
          }

          // p->q +1
          if ((p & (1 | 16 | 128)) == (16 | 128) && (q & (1 | 16 | 128)) == (1 | 16 | 128)) {
            lastPanel = (lastTab || '');
            ytBtnClosePlaylist();
            actioned = true;
          }

          if ((q & 64) === 64) {
            actioned = false;
          } else if ((p & 64) == 64 && (q & 64) === 0) {
            // p->q -64

            if ((q & 32) === 32) {
              ytBtnCloseEngagementPanels();
            }

            if ((q & (2 | 8)) === (2 | 8)) {
              if (lastPanel === 'chat') {

                switchToTab(null);
                actioned = true;
              } else if (lastPanel) {
                ytBtnCollapseChat();
                actioned = true;
              }
            }

          } else if ((p & (1 | 2 | 8 | 16 | 32)) === (1 | 0 | 0 | 16 | 0) && (q & (1 | 2 | 8 | 16 | 32)) === (1 | 0 | 8 | 16 | 0)) {
            // p->q +8
            ytBtnCancelTheater();
            actioned = true;
          } else if ((p & (1 | 16 | 32)) === (0 | 16 | 0) && (q & (1 | 16 | 32)) === (0 | 16 | 32) && (q & (2 | 8)) > 0) {
            // p->q +32
            if (q & 2) {
              switchToTab(null);
              actioned = true;
            }
            if (q & 8) {
              ytBtnCollapseChat();
              actioned = true;
            }
          } else if ((p & (1 | 16 | 8 | 2)) === (16 | 8) && (q & (1 | 16 | 8 | 2)) === (16) && (q & 128) === 0) {
            // p->q -8
            if (lastTab) {
              switchToTab(lastTab)
              actioned = true;
            }

          } else if ((p & 1) === 0 && (q & 1) === 1) {
            // p->q +1
            if ((q & 32) === 32) {
              ytBtnCloseEngagementPanels();
            }
            if ((p & 9) === 8 && (q & 9) === 9) {
              ytBtnCollapseChat();
            }
            switchToTab(null)
            actioned = true;

          } else if ((p & 3) === 1 && (q & 3) === 3) {
            // p->q +2
            ytBtnCancelTheater();
            actioned = true;
          } else if ((p & 10) === 2 && (q & 10) === 10) {
            // p->q +8
            switchToTab(null)
            actioned = true;

          } else if ((p & (8 | 32)) === (0 | 32) && (q & (8 | 32)) === (8 | 32)) {
            // p->q +8
            ytBtnCloseEngagementPanels();
            actioned = true;


          } else if ((p & (2 | 32)) === (0 | 32) && (q & (2 | 32)) === (2 | 32)) {
            // p->q +2
            ytBtnCloseEngagementPanels();
            actioned = true;

          } else if ((p & (2 | 8)) === (0 | 8) && (q & (2 | 8)) === (2 | 8)) {
            // p->q +2
            ytBtnCollapseChat();
            actioned = true;
            // if( lastPanel && (p & (1|16) === 16)  && (q & (1 | 16 | 8 | 2)) === (16) ){
            //   switchToTab(lastTab)
            //   actioned = true;
            // }
          } else if ((p & 1) === 1 && (q & (1 | 32)) === (0 | 0)) {
            // p->q -1
            if (lastPanel === 'chat') {
              ytBtnExpandChat()
              actioned = true;
            } else if (lastPanel === lastTab && lastTab) {
              switchToTab(lastTab)
              actioned = true;
            }
          }


          // 24 20
          // 8 16   4 16

          if (!actioned && (q & 128) === 128) {
            lastPanel = 'playlist'
            if ((q & 2) === 2) {
              switchToTab(null)
              actioned = true;
            }
          }

          if ((p & 2) === 2 && (q & (2 | 128)) === (0 | 128)) {
            // p->q -2

          } else if ((p & 8) === 8 && (q & (8 | 128)) === (0 | 128)) {
            // p->q -8

          } else if (!actioned && (p & (1 | 16)) === 16 && (q & (1 | 16 | 8 | 2 | 32 | 64)) === (16 | 0 | 0)) {
            console.log(388, 'd')
            if (lastPanel === 'chat') {
              console.log(388, 'd1c')
              ytBtnExpandChat()
              actioned = true;

            } else if (lastPanel === 'playlist') {
              console.log(388, 'd1p')
              ytBtnOpenPlaylist()
              actioned = true;

            } else if (lastTab) {
              console.log(388, 'd2t')
              switchToTab(lastTab)
              actioned = true;
            } else if (resetForPanelDisappeared) {
              // if lastTab is undefined
              console.log(388, 'd2d')
              Promise.resolve(lockSet['fixInitialTabStateLock']).then(eventMap['fixInitialTabStateFn']).catch(console.warn);
              actioned = true;
            }
          }


          if (bFixForResizedTab) {
            bFixForResizedTabLater = false;
            Promise.resolve(0).then(eventMap['fixForTabDisplay']).catch(console.warn);
          }

          if (((p & 16) === 16) ^ ((q & 16) === 16)) {
            Promise.resolve(lockSet['infoFixLock']).then(infoFix).catch(console.warn);
            Promise.resolve(lockSet['removeKeepCommentsScrollerLock']).then(removeKeepCommentsScroller).catch(console.warn);
            Promise.resolve(lockSet['layoutFixLock']).then(layoutFix).catch(console.warn);
          }
        }

      },

      'updateOnVideoIdChanged': (lockId) => {
        if (lockId !== lockGet['updateOnVideoIdChangedLock']) return;
        const videoId = tmpLastVideoId;
        if (!videoId) return;

        const bodyRenderer = elements.infoExpanderRendererBack;
        const bodyRendererNew = elements.infoExpanderRendererFront;

        if (bodyRendererNew && bodyRenderer) {

          insp(bodyRendererNew).data = insp(bodyRenderer).data;
          // if ((bodyRendererNew.hasAttribute('hidden') ? 1 : 0) ^ (bodyRenderer.hasAttribute('hidden') ? 1 : 0)) {
          //   if (bodyRenderer.hasAttribute('hidden')) bodyRendererNew.setAttribute('hidden', '');
          //   else bodyRendererNew.removeAttribute('hidden');
          // }

        }


        Promise.resolve(lockSet['infoFixLock']).then(infoFix).catch(console.warn);
      },

      'fixInitialTabStateFn': async (lockId) => {
        // console.log('fixInitialTabStateFn 0a');
        if (lockGet['fixInitialTabStateLock'] !== lockId) return;
        // console.log('fixInitialTabStateFn 0b');
        const delayTime = fixInitialTabStateK > 0 ? 200 : 1;
        await delayPn(delayTime);
        if (lockGet['fixInitialTabStateLock'] !== lockId) return;
        // console.log('fixInitialTabStateFn 0c');
        const kTab = document.querySelector('[tyt-tab]');
        const qTab = (!kTab || kTab.getAttribute('tyt-tab') === '') ? checkElementExist('ytd-watch-flexy[is-two-columns_]', '[hidden]') : null;
        if (checkElementExist('ytd-playlist-panel-renderer#playlist', '[hidden], [collapsed]')) {
          console.log('fixInitialTabStateFn 1p');
          switchToTab(null);
        } else if (checkElementExist('ytd-live-chat-frame#chat', '[hidden], [collapsed]')) {
          console.log('fixInitialTabStateFn 1a');
          switchToTab(null);
          if (checkElementExist('ytd-watch-flexy[theater]', '[hidden]')) {
            ytBtnCollapseChat();
          }
        } else if (qTab) {
          const hasTheater = qTab.hasAttribute('theater');
          if (!hasTheater) {
            console.log('fixInitialTabStateFn 1b');
            const btn0 = document.querySelector('.tab-btn-visible') // or default button
            if (btn0) {
              switchToTab(btn0);
            } else {
              switchToTab(null);
            }
          } else {
            console.log('fixInitialTabStateFn 1c');
            switchToTab(null);
          }
        } else {
          console.log('fixInitialTabStateFn 1z');
        }
        // console.log('fixInitialTabStateFn 0d');
        fixInitialTabStateK++;
      },

      'tabs-btn-click': (evt) => {

        const target = evt.target;
        if (target instanceof HTMLElement_ && target.classList.contains('tab-btn') && target.hasAttribute000('tyt-tab-content')) {

          evt.preventDefault();
          evt.stopPropagation();
          evt.stopImmediatePropagation();


          const activeLink = target;

          switchToTab(activeLink);

        }

      }

    }

    Promise.all([videosElementProvidedPromise, navigateFinishedPromise]).then(eventMap['onceInsertRightTabs']).catch(console.warn);
    Promise.all([navigateFinishedPromise, infoExpanderElementProvidedPromise]).then(eventMap['onceInfoExpanderElementProvidedPromised']).catch(console.warn);

    const isCustomElementsProvided = typeof customElements !== "undefined" && typeof (customElements || 0).whenDefined === "function";

    const promiseForCustomYtElementsReady = isCustomElementsProvided ? Promise.resolve(0) : new Promise((callback) => {
      const EVENT_KEY_ON_REGISTRY_READY = "ytI-ce-registry-created";
      if (typeof customElements === 'undefined') {
        if (!('__CE_registry' in document)) {
          // https://github.com/webcomponents/polyfills/
          Object.defineProperty(document, '__CE_registry', {
            get() {
              // return undefined
            },
            set(nv) {
              if (typeof nv == 'object') {
                delete this.__CE_registry;
                this.__CE_registry = nv;
                this.dispatchEvent(new CustomEvent(EVENT_KEY_ON_REGISTRY_READY));
              }
              return true;
            },
            enumerable: false,
            configurable: true
          })
        }
        let eventHandler = (evt) => {
          document.removeEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
          const f = callback;
          callback = null;
          eventHandler = null;
          f();
        };
        document.addEventListener(EVENT_KEY_ON_REGISTRY_READY, eventHandler, false);
      } else {
        callback();
      }
    });

    const _retrieveCE = async (nodeName) => {
      try {
        isCustomElementsProvided || (await promiseForCustomYtElementsReady);
        await customElements.whenDefined(nodeName);
      } catch (e) {
        console.warn(e);
      }
    }


    const retrieveCE = async (nodeName) => {
      try {
        isCustomElementsProvided || (await promiseForCustomYtElementsReady);
        await customElements.whenDefined(nodeName);
        const dummy = document.querySelector(nodeName) || document.createElement(nodeName);
        const cProto = insp(dummy).constructor.prototype;
        return cProto;
      } catch (e) {
        console.warn(e);
      }
    }


    const moOverallRes = {
      _yt_playerProvided: () => (((window || 0)._yt_player || 0) || 0)
    }

    let promiseWaitNext = null;
    const moOverall = new MutationObserver(() => {
      if (promiseWaitNext) {
        promiseWaitNext.resolve();
        promiseWaitNext = null;
      }

      if (typeof moOverallRes._yt_playerProvided === 'function') {
        const r = moOverallRes._yt_playerProvided();
        if (r) {
          moOverallRes._yt_playerProvided = r;
          eventMap._yt_playerProvided();
        }
      }
    });

    moOverall.observe(document, { subtree: true, childList: true });


    const moEgmPanelReady = new MutationObserver(mutations => {
      for (const mutation of mutations) {
        const target = mutation.target;
        if (!target.hasAttribute000('tyt-egm-panel-jclmd')) continue;
        if (target.hasAttribute000('target-id') && target.hasAttribute000('visibility')) {
          target.removeAttribute000('tyt-egm-panel-jclmd');
          moEgmPanelReadyClearFn();
          Promise.resolve(target).then(eventMap['ytd-engagement-panel-section-list-renderer::bindTarget']).catch(console.warn);
        }
      }
    });

    const moEgmPanelReadyClearFn = () => {

      if (document.querySelector('[tyt-egm-panel-jclmd]') === null) {
        moEgmPanelReady.takeRecords();
        moEgmPanelReady.disconnect();
      }

    };

    document.addEventListener('yt-navigate-finish', eventMap['yt-navigate-finish'], false);

    document.addEventListener('animationstart', evt => {
      const f = eventMap[evt.animationName];
      if (typeof f === 'function') f(evt.target);
    }, capturePassive);

    // console.log('hi122')


    mLoaded.flag |= 1;
    document.documentElement.setAttribute111('tabview-loaded', mLoaded.makeString());

    promiseForCustomYtElementsReady.then(eventMap['ceHack']).catch(console.warn);


    executionFinished = 1;



  } catch (e) {
    console.log('error 0xF491');
    console.error(e);
  }

};
const styles = {
  'main': `
@keyframes relatedElementProvided{0%{background-position-x:3px;}100%{background-position-x:4px;}}
html[tabview-loaded="icp"] #related.ytd-watch-flexy{animation:relatedElementProvided 1ms linear 0s 1 normal forwards;}
html[tabview-loaded="icp"] #right-tabs #related.ytd-watch-flexy,html[tabview-loaded="icp"] [hidden] #related.ytd-watch-flexy,html[tabview-loaded="icp"] #right-tabs ytd-expander#expander,html[tabview-loaded="icp"] [hidden] ytd-expander#expander,html[tabview-loaded="icp"] ytd-comments ytd-expander#expander{animation:initial;}
#secondary.ytd-watch-flexy{position:relative;}
#secondary-inner.style-scope.ytd-watch-flexy{height:100%;}
#secondary-inner secondary-wrapper{display:flex;flex-direction:column;flex-wrap:nowrap;box-sizing:border-box;padding:0;margin:0;border:0;height:100%;max-height:calc(100vh - var(--ytd-toolbar-height,56px));position:absolute;top:0;right:0;left:0;contain:strict;padding:var(--ytd-margin-6x) var(--ytd-margin-6x) var(--ytd-margin-6x) 0;}
#right-tabs{position:relative;display:flex;padding:0;margin:0;flex-grow:1;flex-direction:column;}
[tyt-tab=""] #right-tabs{flex-grow:0;}
[tyt-tab=""] #right-tabs .tab-content{border:0;}
#right-tabs .tab-content{flex-grow:1;}
ytd-watch-flexy[hide-default-text-inline-expander] #primary.style-scope.ytd-watch-flexy ytd-text-inline-expander{display:none;}
ytd-watch-flexy:not([keep-comments-scroller]) #tab-comments.tab-content-hidden{--comment-pre-load-sizing:90px;visibility:collapse;z-index:-1;position:fixed!important;left:2px;top:2px;width:var(--comment-pre-load-sizing)!important;height:var(--comment-pre-load-sizing)!important;display:block!important;pointer-events:none!important;overflow:hidden;contain:strict;border:0;margin:0;padding:0;}
ytd-watch-flexy:not([keep-comments-scroller]) #tab-comments.tab-content-hidden ytd-comments#comments>ytd-item-section-renderer#sections{display:block!important;overflow:hidden;height:var(--comment-pre-load-sizing);width:var(--comment-pre-load-sizing);contain:strict;border:0;margin:0;padding:0;}
ytd-watch-flexy:not([keep-comments-scroller]) #tab-comments.tab-content-hidden ytd-comments#comments>ytd-item-section-renderer#sections>#contents{display:flex!important;flex-direction:row;gap:60px;overflow:hidden;height:var(--comment-pre-load-sizing);width:var(--comment-pre-load-sizing);contain:strict;border:0;margin:0;padding:0;}
ytd-watch-flexy:not([keep-comments-scroller]) #tab-comments.tab-content-hidden ytd-comments#comments #contents{--comment-pre-load-display:none;}
ytd-watch-flexy:not([keep-comments-scroller]) #tab-comments.tab-content-hidden ytd-comments#comments #contents>*:only-of-type,ytd-watch-flexy:not([keep-comments-scroller]) #tab-comments.tab-content-hidden ytd-comments#comments #contents>*:last-child{--comment-pre-load-display:block;}
ytd-watch-flexy:not([keep-comments-scroller]) #tab-comments.tab-content-hidden ytd-comments#comments #contents>*{display:var(--comment-pre-load-display)!important;}
#right-tabs #material-tabs{position:relative;display:flex;padding:0;border:1px solid var(--ytd-searchbox-legacy-border-color);overflow:hidden;}
[tyt-tab] #right-tabs #material-tabs{border-radius:var(--tyt-rounded-a1);}
[tyt-tab^="#"] #right-tabs #material-tabs{border-radius:var(--tyt-rounded-a1) var(--tyt-rounded-a1) 0 0;}
ytd-watch-flexy[flexy]:not([is-two-columns_]) #right-tabs #material-tabs{outline:0;}
#right-tabs #material-tabs a.tab-btn[tyt-tab-content]>*{pointer-events:none;}
#right-tabs #material-tabs a.tab-btn[tyt-tab-content]>.font-size-right{pointer-events:initial;display:none;}
ytd-watch-flexy #right-tabs .tab-content{padding:0;box-sizing:border-box;display:block;border:1px solid var(--ytd-searchbox-legacy-border-color);border-top:0;position:relative;top:0;display:flex;flex-direction:row;overflow:hidden;border-radius:0 0 var(--tyt-rounded-a1) var(--tyt-rounded-a1);}
ytd-watch-flexy:not([is-two-columns_]) #right-tabs .tab-content{height:100%;}
ytd-watch-flexy #right-tabs .tab-content-cld{box-sizing:border-box;position:relative;display:block;width:100%;overflow:auto;--tab-content-padding:var(--ytd-margin-4x);padding:var(--tab-content-padding);contain:layout paint;}
.tab-content-cld,#right-tabs,.tab-content{transition:none;animation:none;}
#right-tabs #emojis.ytd-commentbox{inset:auto 0 auto 0;width:auto;}
ytd-watch-flexy[is-two-columns_] #right-tabs .tab-content-cld{height:100%;width:100%;contain:size layout paint style;position:absolute;}
ytd-watch-flexy #right-tabs .tab-content-cld.tab-content-hidden{display:none;width:100%;contain:size layout paint style;}
@supports (color:var(--tabview-tab-btn-define)){
ytd-watch-flexy #right-tabs .tab-btn{background:var(--yt-spec-general-background-a);}
html{--tyt-tab-btn-flex-grow:1;--tyt-tab-btn-flex-basis:0%;--tyt-tab-bar-color-1-def:#ff4533;--tyt-tab-bar-color-2-def:var(--yt-brand-light-red);--tyt-tab-bar-color-1:var(--main-color,var(--tyt-tab-bar-color-1-def));--tyt-tab-bar-color-2:var(--main-color,var(--tyt-tab-bar-color-2-def));}
ytd-watch-flexy #right-tabs .tab-btn[tyt-tab-content]{flex:var(--tyt-tab-btn-flex-grow) 1 var(--tyt-tab-btn-flex-basis);position:relative;display:inline-block;text-decoration:none;text-transform:uppercase;--tyt-tab-btn-color:var(--yt-spec-text-secondary);color:var(--tyt-tab-btn-color);text-align:center;padding:14px 8px 10px;border:0;border-bottom:4px solid transparent;font-weight:500;font-size:12px;line-height:18px;cursor:pointer;transition:border 200ms linear 100ms;background-color:var(--ytd-searchbox-legacy-button-color);text-transform:var(--yt-button-text-transform,inherit);user-select:none!important;overflow:hidden;white-space:nowrap;text-overflow:clip;}
ytd-watch-flexy #right-tabs .tab-btn[tyt-tab-content]>svg{height:18px;padding-right:0;vertical-align:bottom;opacity:.5;margin-right:0;color:var(--yt-button-color,inherit);fill:var(--iron-icon-fill-color,currentcolor);stroke:var(--iron-icon-stroke-color,none);pointer-events:none;}
ytd-watch-flexy #right-tabs .tab-btn{--tabview-btn-txt-ml:8px;}
ytd-watch-flexy[tyt-comment-disabled] #right-tabs .tab-btn[tyt-tab-content="#tab-comments"]{--tabview-btn-txt-ml:0;}
ytd-watch-flexy #right-tabs .tab-btn[tyt-tab-content]>svg+span{margin-left:var(--tabview-btn-txt-ml);}
ytd-watch-flexy #right-tabs .tab-btn[tyt-tab-content].active{font-weight:500;outline:0;--tyt-tab-btn-color:var(--yt-spec-text-primary);background-color:var(--ytd-searchbox-legacy-button-focus-color);border-bottom:2px var(--tyt-tab-bar-color-2) solid;}
ytd-watch-flexy #right-tabs .tab-btn[tyt-tab-content].active svg{opacity:.9;}
ytd-watch-flexy #right-tabs .tab-btn[tyt-tab-content]:not(.active):hover{background-color:var(--ytd-searchbox-legacy-button-hover-color);--tyt-tab-btn-color:var(--yt-spec-text-primary);}
ytd-watch-flexy #right-tabs .tab-btn[tyt-tab-content]:not(.active):hover svg{opacity:.9;}
ytd-watch-flexy #right-tabs .tab-btn[tyt-tab-content].tab-btn-hidden{display:none;}
ytd-watch-flexy[tyt-comment-disabled] #right-tabs .tab-btn[tyt-tab-content="#tab-comments"],ytd-watch-flexy[tyt-comment-disabled] #right-tabs .tab-btn[tyt-tab-content="#tab-comments"]:hover{--tyt-tab-btn-color:var(--yt-spec-icon-disabled);}
ytd-watch-flexy[tyt-comment-disabled] #right-tabs .tab-btn[tyt-tab-content="#tab-comments"] span#tyt-cm-count:empty{display:none;}
ytd-watch-flexy #right-tabs .tab-btn span#tyt-cm-count:empty::after{display:inline-block;width:4em;text-align:left;font-size:inherit;color:currentColor;transform:scaleX(.8);}
}
@supports (color:var(--tyt-cm-count-define)){
ytd-watch-flexy{--tyt-x-loading-content-letter-spacing:2px;}
html{--tabview-text-loading:"Loading";--tabview-text-fetching:"Fetching";--tabview-panel-loading:var(--tabview-text-loading);}
html:lang(ja){--tabview-text-loading:"読み込み中";--tabview-text-fetching:"フェッチ..";}
html:lang(ko){--tabview-text-loading:"로딩..";--tabview-text-fetching:"가져오기..";}
html:lang(zh-Hant){--tabview-text-loading:"載入中";--tabview-text-fetching:"擷取中";}
html:lang(zh-Hans){--tabview-text-loading:"加载中";--tabview-text-fetching:"抓取中";}
html:lang(ru){--tabview-text-loading:"Загрузка";--tabview-text-fetching:"Получение";}
ytd-watch-flexy #right-tabs .tab-btn span#tyt-cm-count:empty::after{content:var(--tabview-text-loading);letter-spacing:var(--tyt-x-loading-content-letter-spacing);}
}
@supports (color:var(--tabview-font-size-btn-define)){
.font-size-right{display:inline-flex;flex-direction:column;position:absolute;right:0;top:0;bottom:0;width:16px;padding:4px 0;justify-content:space-evenly;align-content:space-evenly;pointer-events:none;}
html body ytd-watch-flexy.style-scope .font-size-btn{user-select:none!important;}
.font-size-btn{--tyt-font-size-btn-display:none;display:var(--tyt-font-size-btn-display,none);width:12px;height:12px;color:var(--yt-spec-text-secondary);background-color:var(--yt-spec-badge-chip-background);box-sizing:border-box;cursor:pointer;transform-origin:left top;margin:0;padding:0;position:relative;font-family:'Menlo','Lucida Console','Monaco','Consolas',monospace;line-height:100%;font-weight:900;transition:background-color 90ms linear,color 90ms linear;pointer-events:all;}
.font-size-btn:hover{background-color:var(--yt-spec-text-primary);color:var(--yt-spec-general-background-a);}
@supports (zoom:.5){
.tab-btn .font-size-btn{--tyt-font-size-btn-display:none;}
.tab-btn.active:hover .font-size-btn{--tyt-font-size-btn-display:inline-block;}
body ytd-watch-flexy:not([is-two-columns_]) #columns.ytd-watch-flexy{flex-direction:column;}
body ytd-watch-flexy:not([is-two-columns_]) #secondary.ytd-watch-flexy{display:block;width:100%;box-sizing:border-box;}
body ytd-watch-flexy:not([is-two-columns_]) #secondary.ytd-watch-flexy secondary-wrapper{padding-left:var(--ytd-margin-6x);contain:content;height:initial;}
body ytd-watch-flexy:not([is-two-columns_]) #secondary.ytd-watch-flexy secondary-wrapper #right-tabs{overflow:auto;}
[tyt-chat="+"] secondary-wrapper>[tyt-chat-container]{flex-grow:1;flex-shrink:0;display:flex;flex-direction:column;}
[tyt-chat="+"] secondary-wrapper>[tyt-chat-container]>#chat{flex-grow:1;}
ytd-watch-flexy[is-two-columns_]:not([theater]) #columns.style-scope.ytd-watch-flexy{min-height:calc(100vh - var(--ytd-toolbar-height,56px));}
ytd-watch-flexy[is-two-columns_] ytd-live-chat-frame#chat{min-height:initial!important;height:initial!important;}
ytd-watch-flexy[tyt-tab^="#"]:not([is-two-columns_]):not([tyt-chat="+"]) #right-tabs{min-height:var(--ytd-watch-flexy-chat-max-height);}
body ytd-watch-flexy:not([is-two-columns_]) #chat.ytd-watch-flexy{margin-top:0;}
body ytd-watch-flexy:not([is-two-columns_]) ytd-watch-metadata.ytd-watch-flexy{margin-bottom:0;}
ytd-watch-metadata.ytd-watch-flexy ytd-metadata-row-container-renderer{display:none;}
#tab-info [show-expand-button] #expand-sizer.ytd-text-inline-expander{visibility:initial;}
#tab-info #social-links.style-scope.ytd-video-description-infocards-section-renderer>#left-arrow-container.ytd-video-description-infocards-section-renderer>#left-arrow,#tab-info #social-links.style-scope.ytd-video-description-infocards-section-renderer>#right-arrow-container.ytd-video-description-infocards-section-renderer>#right-arrow{border:6px solid transparent;opacity:.65;}
#tab-info #social-links.style-scope.ytd-video-description-infocards-section-renderer>#left-arrow-container.ytd-video-description-infocards-section-renderer>#left-arrow:hover,#tab-info #social-links.style-scope.ytd-video-description-infocards-section-renderer>#right-arrow-container.ytd-video-description-infocards-section-renderer>#right-arrow:hover{opacity:1;}
#tab-info #social-links.style-scope.ytd-video-description-infocards-section-renderer>div#left-arrow-container::before{content:'';background:transparent;width:40px;display:block;height:40px;position:absolute;left:-20px;top:0;z-index:-1;}
#tab-info #social-links.style-scope.ytd-video-description-infocards-section-renderer>div#right-arrow-container::before{content:'';background:transparent;width:40px;display:block;height:40px;position:absolute;right:-20px;top:0;z-index:-1;}
body ytd-watch-flexy[is-two-columns_][tyt-egm-panel_] #columns.style-scope.ytd-watch-flexy #panels.style-scope.ytd-watch-flexy{flex-grow:1;flex-shrink:0;display:flex;flex-direction:column;}
body ytd-watch-flexy[is-two-columns_][tyt-egm-panel_] #columns.style-scope.ytd-watch-flexy #panels.style-scope.ytd-watch-flexy ytd-engagement-panel-section-list-renderer[target-id][visibility="ENGAGEMENT_PANEL_VISIBILITY_EXPANDED"]{height:initial;max-height:initial;min-height:initial;flex-grow:1;flex-shrink:0;display:flex;flex-direction:column;}
secondary-wrapper [visibility="ENGAGEMENT_PANEL_VISIBILITY_EXPANDED"] ytd-transcript-renderer:not(:empty),secondary-wrapper [visibility="ENGAGEMENT_PANEL_VISIBILITY_EXPANDED"] #body.ytd-transcript-renderer:not(:empty),secondary-wrapper [visibility="ENGAGEMENT_PANEL_VISIBILITY_EXPANDED"] #content.ytd-transcript-renderer:not(:empty){flex-grow:1;height:initial;max-height:initial;min-height:initial;}
secondary-wrapper #content.ytd-engagement-panel-section-list-renderer{position:relative;}
secondary-wrapper #content.ytd-engagement-panel-section-list-renderer>[panel-target-id]:only-child{contain:style size;}
secondary-wrapper #content.ytd-engagement-panel-section-list-renderer ytd-transcript-segment-list-renderer.ytd-transcript-search-panel-renderer{flex-grow:1;contain:strict;}
secondary-wrapper #content.ytd-engagement-panel-section-list-renderer ytd-transcript-segment-renderer.style-scope.ytd-transcript-segment-list-renderer{contain:layout paint style;}
secondary-wrapper #content.ytd-engagement-panel-section-list-renderer ytd-transcript-segment-renderer.style-scope.ytd-transcript-segment-list-renderer>.segment{contain:layout paint style;}
body ytd-watch-flexy[theater] #secondary.ytd-watch-flexy{margin-top:var(--ytd-margin-3x);padding-top:0;}
body ytd-watch-flexy[theater] secondary-wrapper{margin-top:0;padding-top:0;}
body ytd-watch-flexy[theater] #chat.ytd-watch-flexy{margin-bottom:var(--ytd-margin-2x);}
ytd-watch-flexy[theater] #right-tabs .tab-btn[tyt-tab-content]{padding:8px 4px 6px;border-bottom:0 solid transparent;}
ytd-watch-flexy[theater] #playlist.ytd-watch-flexy{margin-bottom:var(--ytd-margin-2x);}
ytd-watch-flexy[theater] ytd-playlist-panel-renderer[collapsible][collapsed] .header.ytd-playlist-panel-renderer{padding:6px 8px;}
#tab-comments ytd-comments#comments [field-of-cm-count]{margin-top:0;}
#tab-info>ytd-expandable-video-description-body-renderer{margin-bottom:var(--ytd-margin-3x);}
#tab-info [class]:last-child{margin-bottom:0;padding-bottom:0;}
#tab-info ytd-rich-metadata-row-renderer ytd-rich-metadata-renderer{max-width:initial;}
ytd-watch-flexy[is-two-columns_] secondary-wrapper #chat.ytd-watch-flexy{margin-bottom:var(--ytd-margin-3x);}
ytd-watch-flexy[tyt-tab] tp-yt-paper-tooltip{white-space:nowrap;contain:content;}
ytd-watch-info-text tp-yt-paper-tooltip.style-scope.ytd-watch-info-text{margin-bottom:-300px;margin-top:-96px;}
[hide-default-text-inline-expander] #bottom-row #description.ytd-watch-metadata{font-size:1.2rem;line-height:1.8rem;}
[hide-default-text-inline-expander] #bottom-row #description.ytd-watch-metadata yt-animated-rolling-number{font-size:inherit;}
[hide-default-text-inline-expander] #bottom-row #description.ytd-watch-metadata #info-container.style-scope.ytd-watch-info-text{align-items:center;}
ytd-watch-flexy[hide-default-text-inline-expander]{--tyt-bottom-watch-metadata-margin:6px;}
[hide-default-text-inline-expander] #bottom-row #description.ytd-watch-metadata>#description-inner.ytd-watch-metadata{margin:6px 12px;}
[hide-default-text-inline-expander] ytd-watch-metadata[title-headline-xs] h1.ytd-watch-metadata{font-size:1.8rem;}
ytd-watch-flexy[is-two-columns_][hide-default-text-inline-expander] #below.style-scope.ytd-watch-flexy ytd-merch-shelf-renderer{padding:0;border:0;margin:0;}
ytd-watch-flexy[is-two-columns_][hide-default-text-inline-expander] #below.style-scope.ytd-watch-flexy ytd-watch-metadata.ytd-watch-flexy{margin-bottom:6px;}
#tab-info yt-video-attribute-view-model .yt-video-attribute-view-model--horizontal .yt-video-attribute-view-model__link-container .yt-video-attribute-view-model__hero-section{flex-shrink:0;}
#tab-info yt-video-attribute-view-model .yt-video-attribute-view-model__overflow-menu{background:var(--yt-emoji-picker-category-background-color);border-radius:99px;}
#tab-info yt-video-attribute-view-model .yt-video-attribute-view-model--image-square.yt-video-attribute-view-model--image-large .yt-video-attribute-view-model__hero-section{max-height:128px;}
#tab-info yt-video-attribute-view-model .yt-video-attribute-view-model--image-large .yt-video-attribute-view-model__hero-section{max-width:128px;}
#tab-info ytd-reel-shelf-renderer #items.yt-horizontal-list-renderer ytd-reel-item-renderer.yt-horizontal-list-renderer{max-width:142px;}
ytd-watch-info-text#ytd-watch-info-text.style-scope.ytd-watch-metadata #view-count.style-scope.ytd-watch-info-text,ytd-watch-info-text#ytd-watch-info-text.style-scope.ytd-watch-metadata #date-text.style-scope.ytd-watch-info-text{align-items:center;}
ytd-watch-info-text:not([detailed]) #info.ytd-watch-info-text a.yt-simple-endpoint.yt-formatted-string{pointer-events:none;}
body ytd-app>ytd-popup-container>tp-yt-iron-dropdown>#contentWrapper>[slot="dropdown-content"]{backdrop-filter:none;}
#tab-info [tyt-clone-refresh-count]{overflow:visible!important;}
#tab-info #items.ytd-horizontal-card-list-renderer yt-video-attribute-view-model.ytd-horizontal-card-list-renderer{contain:layout;}
#tab-info #thumbnail-container.ytd-structured-description-channel-lockup-renderer,#tab-info ytd-media-lockup-renderer[is-compact] #thumbnail-container.ytd-media-lockup-renderer{flex-shrink:0;}
secondary-wrapper ytd-donation-unavailable-renderer{--ytd-margin-6x:var(--ytd-margin-2x);--ytd-margin-5x:var(--ytd-margin-2x);--ytd-margin-4x:var(--ytd-margin-2x);--ytd-margin-3x:var(--ytd-margin-2x);}
[tyt-no-less-btn] #less{display:none;}
.tyt-metadata-hover-resized #purchase-button,.tyt-metadata-hover-resized #sponsor-button,.tyt-metadata-hover-resized #analytics-button,.tyt-metadata-hover-resized #subscribe-button{display:none!important;}
.tyt-metadata-hover #upload-info{max-width:max-content;min-width:max-content;flex-basis:100vw;flex-shrink:0;}
.tyt-info-invisible{display:none;}
[tyt-playlist-expanded] secondary-wrapper>ytd-playlist-panel-renderer#playlist{overflow:auto;flex-shrink:1;flex-grow:1;max-height:unset!important;}
[tyt-playlist-expanded] secondary-wrapper>ytd-playlist-panel-renderer#playlist>#container{max-height:unset!important;}
secondary-wrapper ytd-playlist-panel-renderer{--ytd-margin-6x:var(--ytd-margin-3x);}
#tab-info ytd-structured-description-playlist-lockup-renderer[collections] #playlist-thumbnail.style-scope.ytd-structured-description-playlist-lockup-renderer{max-width:100%;}
#tab-info ytd-structured-description-playlist-lockup-renderer[collections] #lockup-container.ytd-structured-description-playlist-lockup-renderer{padding:1px;}
#tab-info ytd-structured-description-playlist-lockup-renderer[collections] #thumbnail.ytd-structured-description-playlist-lockup-renderer{outline:1px solid rgba(127,127,127,.5);}
ytd-live-chat-frame#chat[collapsed] ytd-message-renderer~#show-hide-button.ytd-live-chat-frame>ytd-toggle-button-renderer.ytd-live-chat-frame{padding:0;}
ytd-watch-flexy{--tyt-bottom-watch-metadata-margin:12px;}
ytd-watch-flexy[rounded-info-panel],ytd-watch-flexy[rounded-player-large]{--tyt-rounded-a1:12px;}
#bottom-row.style-scope.ytd-watch-metadata .item.ytd-watch-metadata{margin-right:var(--tyt-bottom-watch-metadata-margin,12px);margin-top:var(--tyt-bottom-watch-metadata-margin,12px);}
#cinematics{contain:layout style size;}
ytd-watch-flexy[is-two-columns_]{contain:layout style;}
  `
};
(async () => {
  const communicationKey = `ck-${Date.now()}-${Math.floor(Math.random() * 314159265359 + 314159265359).toString(36)}`;

  /** @type {globalThis.PromiseConstructor} */
  const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.

  if (!document.documentElement) {
    await Promise.resolve(0);
    while (!document.documentElement) {
      await new Promise(resolve => nextBrowserTick(resolve)).then().catch(console.warn);
    }
  }
  const sourceURL = 'debug://tabview-youtube/tabview.execution.js'
  const textContent = `(${executionScript})("${communicationKey}");${"\n\n"}//# sourceURL=${sourceURL}${'\n'}`

  let button = document.createElement('button');
  button.setAttribute('onclick', createHTML(textContent)); // max size 10 million bytes
  button.click();
  button = null;

  let style = document.createElement('style');
  const sourceURLMainCSS = 'debug://tabview-youtube/tabview.main.css';
  style.textContent = `${styles['main'].trim()}${'\n\n'}/*# sourceURL=${sourceURLMainCSS} */${'\n'}`;
  document.documentElement.appendChild(style);

  //-----------------------------------------------------------------------------
  // YouTube enhancements module
  (function () {
    "use strict";

    const YouTubeEnhancer = {
      // Speed control variables
      speedControl: {
        currentSpeed: 1,
        activeAnimationId: null,
        storageKey: "youtube_playback_speed",
      },

      // Settings
      settings: {
        enableSpeedControl: true,
        enableScreenshot: true,
        enableDownload: true,
        storageKey: "youtube_plus_settings",
      },

      // Cache DOM queries
      _cache: new Map(),

      // Initialize everything
      init() {
        if (!/youtube\.com/.test(location.host)) return;

        this.loadSettings();
        this.speedControl.currentSpeed = parseFloat(
          localStorage.getItem(this.speedControl.storageKey) || 1
        );

        this.insertStyles();
        this.addSettingsButtonToHeader();
        this.setupNavigationObserver();
        this.setupCurrentPage();
      },

      // Cached element getter
      getElement(selector, useCache = true) {
        if (useCache && this._cache.has(selector)) {
          const element = this._cache.get(selector);
          if (element?.isConnected) return element;
          this._cache.delete(selector);
        }

        const element = document.querySelector(selector);
        if (element && useCache) this._cache.set(selector, element);
        return element;
      },

      loadSettings() {
        try {
          const saved = localStorage.getItem(this.settings.storageKey);
          if (saved) Object.assign(this.settings, JSON.parse(saved));
        } catch (e) {
          console.error("Error loading settings:", e);
        }
      },

      saveSettings() {
        localStorage.setItem(this.settings.storageKey, JSON.stringify(this.settings));
        this.updatePageBasedOnSettings();
      },

      updatePageBasedOnSettings() {
        const settingsMap = {
          "ytp-screenshot-button": "enableScreenshot",
          "ytp-download-button": "enableDownload",
          "speed-control-btn": "enableSpeedControl"
        };

        Object.entries(settingsMap).forEach(([className, setting]) => {
          const button = this.getElement(`.${className}`, false);
          if (button) button.style.display = this.settings[setting] ? "" : "none";
        });
      },

      setupCurrentPage() {
        this.waitForElement("#player-container-outer .html5-video-player, .ytp-right-controls", 5000)
          .then(() => {
            this.addCustomButtons();
            this.setupVideoObserver();
            this.applyCurrentSpeed();
            this.updatePageBasedOnSettings();
          })
          .catch(() => { });
      },

      insertStyles() {
        // Glassmorphism styles for modal and controls
        const styles = `:root{--yt-accent:#ff0000;--yt-accent-hover:#cc0000;--yt-radius-sm:4px;--yt-radius-md:8px;--yt-radius-lg:12px;--yt-transition:all .2s ease;--yt-space-xs:4px;--yt-space-sm:8px;--yt-space-md:16px;--yt-space-lg:24px;}
        html[dark],html:not([dark]):not([light]){--yt-bg-primary:rgba(15,15,15,.85);--yt-bg-secondary:rgba(28,28,28,.85);--yt-bg-tertiary:rgba(34,34,34,.85);--yt-text-primary:#fff;--yt-text-secondary:#aaa;--yt-border-color:rgba(255,255,255,.2);--yt-hover-bg:rgba(255,255,255,.1);--yt-shadow:0 4px 12px rgba(0,0,0,.25);--yt-glass-bg:rgba(255,255,255,.1);--yt-glass-border:rgba(255,255,255,.2);--yt-glass-shadow:0 8px 32px rgba(0,0,0,.2);--yt-modal-bg:rgba(0,0,0,.75);--yt-notification-bg:rgba(28,28,28,.9);--yt-panel-bg:rgba(34,34,34,.3);--yt-header-bg:rgba(20,20,20,.6);--yt-input-bg:rgba(255,255,255,.1);--yt-button-bg:rgba(255,255,255,.2);--yt-text-stroke:white;}
        html[light]{--yt-bg-primary:rgba(255,255,255,.85);--yt-bg-secondary:rgba(248,248,248,.85);--yt-bg-tertiary:rgba(240,240,240,.85);--yt-text-primary:#030303;--yt-text-secondary:#606060;--yt-border-color:rgba(0,0,0,.2);--yt-hover-bg:rgba(0,0,0,.05);--yt-shadow:0 4px 12px rgba(0,0,0,.15);--yt-glass-bg:rgba(255,255,255,.7);--yt-glass-border:rgba(0,0,0,.1);--yt-glass-shadow:0 8px 32px rgba(0,0,0,.1);--yt-modal-bg:rgba(0,0,0,.5);--yt-notification-bg:rgba(255,255,255,.95);--yt-panel-bg:rgba(255,255,255,.7);--yt-header-bg:rgba(248,248,248,.8);--yt-input-bg:rgba(0,0,0,.05);--yt-button-bg:rgba(0,0,0,.1);--yt-text-stroke:#030303;}
        .ytp-screenshot-button,.ytp-cobalt-button,.ytp-pip-button{position:relative;bottom:12px;width:44px;transition:opacity .15s,transform .15s;}
        .ytp-screenshot-button:hover,.ytp-cobalt-button:hover,.ytp-pip-button:hover{transform:scale(1.1);}
        .speed-control-btn{width:4em!important;float:left;text-align:center!important;border-radius:var(--yt-radius-sm);font-size:13px;color:var(--yt-text-primary);cursor:pointer;user-select:none;font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;transition:color .2s;}
        .speed-control-btn:hover{color:var(--yt-accent);font-weight:bold;}
        .speed-options{position:absolute!important;background:var(--yt-glass-bg)!important;color:var(--yt-text-primary)!important;border-radius:var(--yt-radius-sm)!important;display:none;bottom:calc(100% + 10px)!important;width:48px!important;z-index:9999!important;box-shadow:var(--yt-glass-shadow);border:1px solid var(--yt-glass-border);overflow:hidden;backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);}
        .speed-option-item{cursor:pointer!important;height:25px!important;line-height:25px!important;font-size:12px!important;text-align:center!important;transition:background-color .15s,color .15s;}
        .speed-option-active,.speed-option-item:hover{color:var(--yt-accent)!important;font-weight:bold!important;background:var(--yt-hover-bg)!important;}
        #speed-indicator{position:absolute!important;margin:auto!important;top:0!important;right:0!important;bottom:0!important;left:0!important;border-radius:20px!important;font-size:30px!important;background:var(--yt-glass-bg)!important;color:var(--yt-text-primary)!important;z-index:99999!important;width:80px!important;height:80px!important;line-height:80px!important;text-align:center!important;display:none;box-shadow:var(--yt-glass-shadow);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);border:1px solid var(--yt-glass-border);}
        .youtube-enhancer-notification{position:fixed;bottom:70px;left:50%;transform:translateX(-50%);background:var(--yt-glass-bg);color:var(--yt-text-primary);padding:10px 20px;border-radius:var(--yt-radius-sm);z-index:9999;transition:opacity .5s,transform .3s;box-shadow:var(--yt-glass-shadow);border:1px solid var(--yt-glass-border);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);font-weight:500;}
        .ytp-plus-settings-button{background:transparent;border:none;color:var(--yt-text-secondary);cursor:pointer;padding:var(--yt-space-sm);margin-right:var(--yt-space-sm);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background-color .2s,transform .2s;}
        .ytp-plus-settings-button svg{width:24px;height:24px;}
        .ytp-plus-settings-button:hover{background:var(--yt-hover-bg);transform:rotate(30deg);color:var(--yt-text-secondary);}
        .ytp-plus-settings-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--yt-modal-bg);display:flex;align-items:center;justify-content:center;z-index:99999;backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);}
        .ytp-plus-settings-panel{background:var(--yt-glass-bg);color:var(--yt-text-primary);border-radius:var(--yt-radius-lg);width:720px;max-width:90%;max-height:90vh;overflow:hidden;box-shadow:var(--yt-glass-shadow);animation:ytEnhanceFadeIn .2s;backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);border:1px solid var(--yt-glass-border);will-change:transform,opacity;display:flex;flex-direction:row;}
        .ytp-plus-settings-sidebar{width:200px;background:var(--yt-header-bg);border-right:1px solid var(--yt-glass-border);display:flex;flex-direction:column;backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);}
        .ytp-plus-settings-sidebar-header{padding:var(--yt-space-md) var(--yt-space-lg);border-bottom:1px solid var(--yt-glass-border);display:flex;justify-content:space-between;align-items:center;}
        .ytp-plus-settings-title{font-size:18px;font-weight:500;margin:0;color:var(--yt-text-primary);}
        .ytp-plus-settings-sidebar-close{padding:var(--yt-space-md) var(--yt-space-lg);display:flex;justify-content:flex-end;background:transparent;}
        .ytp-plus-settings-close{background:none;border:none;cursor:pointer;padding:var(--yt-space-sm);margin:-8px;color:var(--yt-text-primary);transition:color .2s,transform .2s;}
        .ytp-plus-settings-close:hover{color:var(--yt-accent);transform:scale(1.1);}
        .ytp-plus-settings-nav{flex:1;padding:var(--yt-space-md) 0;}
        .ytp-plus-settings-nav-item{display:flex;align-items:center;padding:12px var(--yt-space-lg);cursor:pointer;transition:background .2s,color .2s;font-size:14px;border-left:3px solid transparent;color:var(--yt-text-primary);}
        .ytp-plus-settings-nav-item:hover{background:var(--yt-hover-bg);}
        .ytp-plus-settings-nav-item.active{background:rgba(255,0,0,.1);border-left-color:var(--yt-accent);color:var(--yt-accent);}
        .ytp-plus-settings-nav-item svg{width:18px;height:18px;margin-right:12px;opacity:.8;}
        .ytp-plus-settings-nav-item.active svg{opacity:1;}
        .ytp-plus-settings-main{flex:1;display:flex;flex-direction:column;overflow-y:auto;}
        .ytp-plus-settings-header{padding:var(--yt-space-md) var(--yt-space-lg);border-bottom:1px solid var(--yt-glass-border);background:var(--yt-header-bg);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);}
        .ytp-plus-settings-content{flex:1;padding:var(--yt-space-md) var(--yt-space-lg);overflow-y:auto;}
        .ytp-plus-settings-section{margin-bottom:var(--yt-space-lg);}
        .ytp-plus-settings-section-title{font-size:16px;font-weight:500;margin-bottom:var(--yt-space-md);color:var(--yt-text-primary);}
        .ytp-plus-settings-section.hidden{display:none;}
        .ytp-plus-settings-item{display:flex;align-items:center;margin-bottom:var(--yt-space-md);padding:12px 16px;background:transparent;transition:transform .2s,background .3s;border-radius:var(--yt-radius-md);}
        .ytp-plus-settings-item:hover{background:var(--yt-hover-bg);transform:translateX(5px);}
        .ytp-plus-settings-item-label{flex:1;font-size:14px;color:var(--yt-text-primary);}
        .ytp-plus-settings-item-description{font-size:12px;color:var(--yt-text-secondary);margin-top:4px;}
        .ytp-plus-settings-checkbox{appearance:none;-webkit-appearance:none;-moz-appearance:none;width:15px;height:15px;right:5%;transform-origin:center;border:1px solid var(--yt-glass-border);border-radius:50%;background:transparent;transition:all 250ms cubic-bezier(.4,0,.23,1);cursor:pointer;position:absolute;box-shadow:0 1px 3px rgba(0,0,0,.2);}
        .ytp-plus-settings-checkbox:hover{background:var(--yt-hover-bg);transform:scale(1.1);}
        .ytp-plus-settings-checkbox::before{content:"";width:4px;height:2px;background:var(--yt-text-primary);position:absolute;transform:rotate(45deg);top:4px;left:3px;transition:width 100ms ease 50ms,opacity 50ms;transform-origin:0% 0%;opacity:0;}
        .ytp-plus-settings-checkbox::after{content:"";width:0;height:2px;background:var(--yt-text-primary);position:absolute;transform:rotate(305deg);top:9px;left:6px;transition:width 100ms ease,opacity 50ms;transform-origin:0% 0%;opacity:0;}
        .ytp-plus-settings-checkbox:checked{transform:rotate(0deg) scale(1.2);}
        .ytp-plus-settings-checkbox:checked::before{width:8px;opacity:1;background:#fff;transition:width 150ms ease 100ms,opacity 150ms ease 100ms;}
        .ytp-plus-settings-checkbox:checked::after{width:15px;opacity:1;background:#fff;transition:width 150ms ease 250ms,opacity 150ms ease 250ms;}
        .ytp-plus-footer{padding:var(--yt-space-md) var(--yt-space-lg);border-top:1px solid var(--yt-glass-border);display:flex;justify-content:flex-end;background:transparent;}
        .ytp-plus-button{padding:var(--yt-space-sm) var(--yt-space-md);border-radius:18px;border:none;font-size:14px;font-weight:500;cursor:pointer;transition:background .2s,transform .2s,box-shadow .2s;}
        .ytp-plus-button-primary{background:transparent;border:1px solid var(--yt-glass-border);color:var(--yt-text-primary);}
        .ytp-plus-button-primary:hover{background:var(--yt-accent);color:#fff;box-shadow:0 4px 12px rgba(255,0,0,.3);transform:translateY(-2px);}
        .app-icon{fill:var(--yt-text-primary);stroke:var(--yt-text-primary);transition:all .3s;}
        @keyframes ytEnhanceFadeIn{from{opacity:0;transform:scale(.95);}to{opacity:1;transform:scale(1);}}
        @media(max-width:768px){.ytp-plus-settings-panel{width:95%;max-height:80vh;flex-direction:column;}
        .ytp-plus-settings-sidebar{width:100%;max-height:120px;flex-direction:row;overflow-x:auto;}
        .ytp-plus-settings-nav{display:flex;flex-direction:row;padding:0;}
        .ytp-plus-settings-nav-item{white-space:nowrap;border-left:none;border-bottom:3px solid transparent;}
        .ytp-plus-settings-nav-item.active{border-left:none;border-bottom-color:var(--yt-accent);}
        .ytp-plus-settings-item{padding:10px 12px;}
        }
        .ytp-plus-settings-section h1{margin:-95px 90px 8px;font-family:'Montserrat',sans-serif;font-size:52px;font-weight:600;color:transparent;-webkit-text-stroke-width:1px;-webkit-text-stroke-color:var(--yt-text-stroke);cursor:pointer;transition:color .2s;}
        .ytp-plus-settings-section h1:hover{color:var(--yt-accent);-webkit-text-stroke-width:1px;-webkit-text-stroke-color:transparent;}
        `;

        if (!document.getElementById('yt-enhancer-styles')) {
          const styleEl = document.createElement("style");
          styleEl.id = 'yt-enhancer-styles';
          styleEl.textContent = styles;
          document.head.appendChild(styleEl);
        }
      },

      addSettingsButtonToHeader() {
        this.waitForElement("ytd-masthead #end", 5000)
          .then((headerEnd) => {
            if (!this.getElement(".ytp-plus-settings-button")) {
              const settingsButton = document.createElement("div");
              settingsButton.className = "ytp-plus-settings-button";
              settingsButton.setAttribute("title", "YouTube + Settings");
              settingsButton.innerHTML = `
                <svg width="24" height="24" viewBox="0 0 48 48" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                  <path d="M39.23,26a16.52,16.52,0,0,0,.14-2,16.52,16.52,0,0,0-.14-2l4.33-3.39a1,1,0,0,0,.25-1.31l-4.1-7.11a1,1,0,0,0-1.25-.44l-5.11,2.06a15.68,15.68,0,0,0-3.46-2l-.77-5.43a1,1,0,0,0-1-.86H19.9a1,1,0,0,0-1,.86l-.77,5.43a15.36,15.36,0,0,0-3.46,2L9.54,9.75a1,1,0,0,0-1.25.44L4.19,17.3a1,1,0,0,0,.25,1.31L8.76,22a16.66,16.66,0,0,0-.14,2,16.52,16.52,0,0,0,.14,2L4.44,29.39a1,1,0,0,0-.25,1.31l4.1,7.11a1,1,0,0,0,1.25.44l5.11-2.06a15.68,15.68,0,0,0,3.46,2l.77,5.43a1,1,0,0,0,1,.86h8.2a1,1,0,0,0,1-.86l.77-5.43a15.36,15.36,0,0,0,3.46-2l5.11,2.06a1,1,0,0,0,1.25-.44l4.1-7.11a1,1,0,0,0-.25-1.31ZM24,31.18A7.18,7.18,0,1,1,31.17,24,7.17,7.17,0,0,1,24,31.18Z"/>
                </svg>
              `;

              settingsButton.addEventListener("click", this.openSettingsModal.bind(this));

              const avatarButton = headerEnd.querySelector("ytd-topbar-menu-button-renderer");
              if (avatarButton) {
                headerEnd.insertBefore(settingsButton, avatarButton);
              } else {
                headerEnd.appendChild(settingsButton);
              }
            }
          })
          .catch(() => { });
      },

      createSettingsModal() {
        const modal = document.createElement("div");
        modal.className = "ytp-plus-settings-modal";

        modal.innerHTML = `
          <div class="ytp-plus-settings-panel">
            <div class="ytp-plus-settings-sidebar">
              <div class="ytp-plus-settings-sidebar-header">
                <h2 class="ytp-plus-settings-title">Settings</h2>                
              </div>
              <div class="ytp-plus-settings-nav">
                <div class="ytp-plus-settings-nav-item active" data-section="basic">
                  <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                    <rect x="3" y="3" width="18" height="18" rx="2" ry="2"/>
                    <circle cx="9" cy="9" r="2"/>
                    <path d="m21 15-3.086-3.086a2 2 0 0 0-1.414-.586H13l-2-2v3h6l3 3"/>
                  </svg>
                  Basic
                </div>
                <div class="ytp-plus-settings-nav-item" data-section="advanced">
                  <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                    <circle cx="12" cy="12" r="3"/>
                    <path d="m12 1 0 6m0 6 0 6"/>
                    <path d="m17.5 6.5-4.5 4.5m0 0-4.5 4.5m9-9L12 12l5.5 5.5"/>
                  </svg>
                  Advanced
                </div>
                <div class="ytp-plus-settings-nav-item" data-section="experimental">
                  <svg width="64px" height="64px" viewBox="0 0 48 48" fill="none" xmlns="http://www.w3.org/2000/svg">
                    <path fill-rule="evenodd" clip-rule="evenodd" d="M18.019 4V15.0386L6.27437 39.3014C5.48686 40.9283 6.16731 42.8855 7.79421 43.673C8.23876 43.8882 8.72624 44 9.22013 44H38.7874C40.5949 44 42.0602 42.5347 42.0602 40.7273C42.0602 40.2348 41.949 39.7488 41.7351 39.3052L30.0282 15.0386V4H18.019Z" stroke="currentColor" stroke-width="4" stroke-linejoin="round"></path> <path d="M10.9604 29.9998C13.1241 31.3401 15.2893 32.0103 17.4559 32.0103C19.6226 32.0103 21.7908 31.3401 23.9605 29.9998C26.1088 28.6735 28.2664 28.0103 30.433 28.0103C32.5997 28.0103 34.7755 28.6735 36.9604 29.9998" stroke="currentColor" stroke-width="4" stroke-linecap="round"></path>
                  </svg>
                  Experimental
                </div>
                <div class="ytp-plus-settings-nav-item" data-section="about">
                  <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                    <circle cx="12" cy="12" r="10"/>
                    <path d="m9 12 2 2 4-4"/>
                  </svg>
                  About
                </div>
              </div>
            </div>
            <div class="ytp-plus-settings-main">
              <div class="ytp-plus-settings-sidebar-close">
                <button class="ytp-plus-settings-close" aria-label="Close">
                  <svg viewBox="0 0 24 24" width="24" height="24" stroke="currentColor" fill="none" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                    <path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41z"/>
                  </svg>
                </button>
              </div>              
              <div class="ytp-plus-settings-content">                
                <div class="ytp-plus-settings-section" data-section="basic">
                  <div class="ytp-plus-settings-item">
                    <div>
                      <label class="ytp-plus-settings-item-label">Speed Control</label>
                      <div class="ytp-plus-settings-item-description">Add speed control buttons to video player</div>
                    </div>
                    <input type="checkbox" class="ytp-plus-settings-checkbox" data-setting="enableSpeedControl" ${this.settings.enableSpeedControl ? 'checked' : ''}>
                  </div>
                  <div class="ytp-plus-settings-item">
                    <div>
                      <label class="ytp-plus-settings-item-label">Screenshot Button</label>
                      <div class="ytp-plus-settings-item-description">Add screenshot capture button to video player</div>
                    </div>
                    <input type="checkbox" class="ytp-plus-settings-checkbox" data-setting="enableScreenshot" ${this.settings.enableScreenshot ? 'checked' : ''}>
                  </div>
                  <div class="ytp-plus-settings-item">
                    <div>
                      <label class="ytp-plus-settings-item-label">Download Button</label>
                      <div class="ytp-plus-settings-item-description">Add download button with multiple site options to video player</div>
                    </div>
                    <input type="checkbox" class="ytp-plus-settings-checkbox" data-setting="enableDownload" ${this.settings.enableDownload ? 'checked' : ''}>
                  </div>
                </div>
                
                <div class="ytp-plus-settings-section hidden" data-section="advanced">
                </div>

                <div class="ytp-plus-settings-section hidden" data-section="experimental">
                </div>
                
                <div class="ytp-plus-settings-section hidden" data-section="about">
                  <svg class="app-icon" width="90" height="90" viewBox="0 0 64 64" xmlns="http://www.w3.org/2000/svg" xmlns:svg="http://www.w3.org/2000/svg" version="1.1">
                    <path d="m23.24,4.62c-0.85,0.45 -2.19,2.12 -4.12,5.13c-1.54,2.41 -2.71,4.49 -3.81,6.8c-0.55,1.14 -1.05,2.2 -1.13,2.35c-0.08,0.16 -0.78,0.7 -1.66,1.28c-1.38,0.91 -1.8,1.29 -1.4,1.28c0.08,0 0.67,-0.35 1.31,-0.77c0.64,-0.42 1.19,-0.76 1.2,-0.74c0.02,0.02 -0.1,0.31 -0.25,0.66c-1.03,2.25 -1.84,5.05 -1.84,6.37c0.01,1.89 0.84,2.67 2.86,2.67c1.08,0 1.94,-0.31 3.66,-1.29c1.84,-1.06 3.03,-1.93 4.18,-3.09c1.69,-1.7 2.91,-3.4 3.28,-4.59c0.59,-1.9 -0.1,-3.08 -2.02,-3.44c-0.87,-0.16 -2.85,-0.14 -3.75,0.06c-1.78,0.38 -2.74,0.76 -2.5,1c0.03,0.03 0.5,-0.1 1.05,-0.28c1.49,-0.48 2.34,-0.59 3.88,-0.53c1.64,0.07 2.09,0.19 2.69,0.75l0.46,0.43l0,0.87c0,0.74 -0.05,0.98 -0.35,1.6c-0.69,1.45 -2.69,3.81 -4.37,5.14c-0.93,0.74 -2.88,1.94 -4.07,2.5c-1.64,0.77 -3.56,0.72 -4.21,-0.11c-0.39,-0.5 -0.5,-1.02 -0.44,-2.11c0.05,-0.85 0.16,-1.32 0.67,-2.86c0.34,-1.01 0.86,-2.38 1.15,-3.04c0.52,-1.18 0.55,-1.22 1.6,-2.14c4.19,-3.65 8.42,-9.4 9.02,-12.26c0.2,-0.94 0.13,-1.46 -0.21,-1.7c-0.31,-0.22 -0.38,-0.21 -0.89,0.06m0.19,0.26c-0.92,0.41 -3.15,3.44 -5.59,7.6c-1.05,1.79 -3.12,5.85 -3.02,5.95c0.07,0.07 1.63,-1.33 2.58,-2.34c1.57,-1.65 3.73,-4.39 4.88,-6.17c1.31,-2.03 2.06,-4.11 1.77,-4.89c-0.13,-0.34 -0.16,-0.35 -0.62,-0.15m11.69,13.32c-0.3,0.6 -1.19,2.54 -1.98,4.32c-1.6,3.62 -1.67,3.71 -2.99,4.34c-1.13,0.54 -2.31,0.85 -3.54,0.92c-0.99,0.06 -1.08,0.04 -1.38,-0.19c-0.28,-0.22 -0.31,-0.31 -0.26,-0.7c0.03,-0.25 0.64,-1.63 1.35,-3.08c1.16,-2.36 2.52,-5.61 2.52,-6.01c0,-0.49 -0.36,0.19 -1.17,2.22c-0.51,1.26 -1.37,3.16 -1.93,4.24c-0.55,1.08 -1.04,2.17 -1.09,2.43c-0.1,0.59 0.07,1.03 0.49,1.28c0.78,0.46 3.3,0.06 5.13,-0.81l0.93,-0.45l-0.66,1.25c-0.7,1.33 -3.36,6.07 -4.31,7.67c-2.02,3.41 -3.96,5.32 -6.33,6.21c-2.57,0.96 -4.92,0.74 -6.14,-0.58c-0.81,-0.88 -0.82,-1.71 -0.04,-3.22c1.22,-2.36 6.52,-6.15 10.48,-7.49c0.52,-0.18 0.95,-0.39 0.95,-0.46c0,-0.21 -0.19,-0.18 -1.24,0.2c-1.19,0.43 -3.12,1.37 -4.34,2.11c-2.61,1.59 -5.44,4.09 -6.13,5.43c-1.15,2.2 -0.73,3.61 1.4,4.6c0.59,0.28 0.75,0.3 2.04,0.3c1.67,0 2.42,-0.18 3.88,-0.89c1.87,-0.92 3.17,-2.13 4.72,-4.41c0.98,-1.44 4.66,-7.88 5.91,-10.33c0.25,-0.49 0.68,-1.19 0.96,-1.56c0.28,-0.37 0.76,-1.15 1.06,-1.73c0.82,-1.59 2.58,-6.1 2.58,-6.6c0,-0.06 -0.07,-0.1 -0.17,-0.1c-0.1,0 -0.39,0.44 -0.71,1.09m-1.34,3.7c-0.93,2.08 -1.09,2.48 -0.87,2.2c0.19,-0.24 1.66,-3.65 1.6,-3.71c-0.02,-0.02 -0.35,0.66 -0.73,1.51" fill="none" fill-rule="evenodd" stroke="currentColor" />
                  </svg>
                    <h1>YouTube +</h1><br><br>
                </div>
              </div>
              <div class="ytp-plus-footer">
                <button class="ytp-plus-button ytp-plus-button-primary" id="ytp-plus-save-settings">Save Changes</button>
              </div>
            </div>
          </div>
        `;

        // Event delegation for better performance
        modal.addEventListener('click', (e) => {
          if (e.target === modal) modal.remove();
          if (e.target.classList.contains('ytp-plus-settings-close') || e.target.closest('.ytp-plus-settings-close')) modal.remove();

          if (e.target.classList.contains('ytp-plus-settings-nav-item')) {
            // Handle sidebar navigation
            const section = e.target.dataset.section;
            modal.querySelectorAll('.ytp-plus-settings-nav-item').forEach(item => item.classList.remove('active'));
            modal.querySelectorAll('.ytp-plus-settings-section').forEach(section => section.classList.add('hidden'));

            e.target.classList.add('active');
            modal.querySelector(`.ytp-plus-settings-section[data-section="${section}"]`).classList.remove('hidden');
          }

          if (e.target.classList.contains('ytp-plus-settings-checkbox')) {
            const setting = e.target.dataset.setting;
            if (setting) {
              this.settings[setting] = e.target.checked;
            }
          }

          if (e.target.id === 'ytp-plus-save-settings') {
            this.saveSettings();
            modal.remove();
            this.showNotification("Settings saved");
          }
        });

        return modal;
      },

      openSettingsModal() {
        const existingModal = this.getElement(".ytp-plus-settings-modal", false);
        if (existingModal) existingModal.remove();
        document.body.appendChild(this.createSettingsModal());
      },

      waitForElement(selector, timeout = 5000) {
        return new Promise((resolve, reject) => {
          const element = document.querySelector(selector);
          if (element) return resolve(element);

          const observer = new MutationObserver(() => {
            const element = document.querySelector(selector);
            if (element) {
              observer.disconnect();
              resolve(element);
            }
          });

          observer.observe(document.body, { childList: true, subtree: true });
          setTimeout(() => {
            observer.disconnect();
            reject(new Error(`Element ${selector} not found within ${timeout}ms`));
          }, timeout);
        });
      },

      addCustomButtons() {
        const controls = this.getElement(".ytp-right-controls");
        if (!controls) return;

        if (!this.getElement(".ytp-screenshot-button")) this.addScreenshotButton(controls);
        if (!this.getElement(".ytp-download-button")) this.addDownloadButton(controls);
        if (!this.getElement(".speed-control-btn")) this.addSpeedControlButton(controls);

        if (!document.getElementById("speed-indicator")) {
          const indicator = document.createElement("div");
          indicator.id = "speed-indicator";
          const player = document.getElementById("movie_player");
          if (player) player.appendChild(indicator);
        }

        this.handleFullscreenChange();
      },


      addScreenshotButton(controls) {
        const button = document.createElement("button");
        button.className = "ytp-button ytp-screenshot-button";
        button.setAttribute("title", "Take screenshot");
        button.innerHTML = `
          <svg width="24" height="24" viewBox="0 0 48 48" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
            <path d="M19.83,8.77l-2.77,2.84H6.29A1.79,1.79,0,0,0,4.5,13.4V36.62a1.8,1.8,0,0,0,1.79,1.8H41.71a1.8,1.8,0,0,0,1.79-1.8V13.4a1.79,1.79,0,0,0-1.79-1.79H30.94L28.17,8.77Zm18.93,5.74a1.84,1.84,0,1,1,0,3.68A1.84,1.84,0,0,1,38.76,14.51ZM24,17.71a8.51,8.51,0,1,1-8.51,8.51A8.51,8.51,0,0,1,24,17.71Z"/>
          </svg>
        `;
        button.addEventListener("click", this.captureFrame.bind(this));
        controls.insertBefore(button, controls.firstChild);
      },

      addDownloadButton(controls) {
        if (!this.settings.enableDownload) return;
        const button = document.createElement("div");
        button.className = "ytp-button ytp-download-button";
        button.setAttribute("title", "Download options");
        button.setAttribute("tabindex", "0");
        button.setAttribute("role", "button");
        button.setAttribute("aria-haspopup", "true");
        button.setAttribute("aria-expanded", "false");
        button.style.display = "inline-block";
        button.style.padding = "0 10px 0 0";
        button.style.height = "36px";
        button.innerHTML = `
          <svg fill="currentColor" width="24" height="24" viewBox="0 0 256 256" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="display:block;margin:auto;vertical-align:middle;">
        <path d="M83.17188,112.83984a4.00026,4.00026,0,0,1,5.65624-5.6582L124,142.34473V40a4,4,0,0,1,8,0V142.34473l35.17188-35.16309a4.00026,4.00026,0,0,1,5.65624,5.6582l-42,41.98926a4.00088,4.00088,0,0,1-5.65624,0ZM216,148a4.0002,4.0002,0,0,0-4,4v56a4.00427,4.00427,0,0,1-4,4H48a4.00427,4.00427,0,0,1-4-4V152a4,4,0,0,0-8,0v56a12.01343,12.01343,0,0,0,12,12H208a12.01343,12.01343,0,0,0,12-12V152A4.0002,4.0002,0,0,0,216,148Z"/>
          </svg>
        `;

        // Dropdown options
        const options = document.createElement("div");
        options.className = "download-options";
        options.style.display = "none";
        options.style.position = "fixed";
        options.style.background = "var(--yt-glass-bg)";
        options.style.color = "var(--yt-text-primary)";
        options.style.borderRadius = "var(--yt-radius-sm)";
        options.style.width = "150px";
        options.style.zIndex = "99999";
        options.style.boxShadow = "var(--yt-glass-shadow)";
        options.style.border = "1px solid var(--yt-glass-border)";
        options.style.overflow = "hidden";
        options.style.backdropFilter = "blur(18px) saturate(180%)";
        options.style.webkitBackdropFilter = "blur(18px) saturate(180%)";
        options.setAttribute("role", "menu");

        // Position dropdown below button
        function positionDropdown() {
          const rect = button.getBoundingClientRect();
          options.style.left = `${rect.left + rect.width / 2 - 75}px`;
          options.style.bottom = `${window.innerHeight - rect.top + 12}px`;
        }

        // Helper to open download site
        function openDownloadSite(url) {
          window.open(url, "_blank");
          options.style.display = "none";
          button.setAttribute("aria-expanded", "false");
        }

        // Get current video URL
        const videoId = new URLSearchParams(location.search).get("v");
        const videoUrl = videoId ? `https://www.youtube.com/watch?v=${videoId}` : location.href;

        // List of download sites
        const downloadSites = [
          { name: "Y2Mate", url: `https://www.y2mate.com/youtube/${videoId || ""}` },
          { name: "9xbuddy", url: `https://9xbuddy.org/process?url=${encodeURIComponent(videoUrl)}` },
          { name: "by YTDL", url: `https://github.com/diorhc/YouTube-Downloader` }
        ];

        // Centered list
        const list = document.createElement("div");
        list.style.display = "flex";
        list.style.flexDirection = "column";
        list.style.alignItems = "center";
        list.style.justifyContent = "center";
        list.style.width = "100%";

        downloadSites.forEach(site => {
          const opt = document.createElement("div");
          opt.className = "download-option-item";
          opt.textContent = site.name;
          opt.style.cursor = "pointer";
          opt.style.padding = "10px";
          opt.setAttribute("role", "menuitem");
          opt.setAttribute("tabindex", "0");
          opt.style.textAlign = "center";
          opt.addEventListener("click", () => openDownloadSite(site.url));
          opt.addEventListener("keydown", (e) => {
            if (e.key === "Enter" || e.key === " ") {
              openDownloadSite(site.url);
            }
          });
          list.appendChild(opt);
        });

        options.appendChild(list);

        button.appendChild(options);

        let dropdownTimeout;
        function showDropdown() {
          clearTimeout(dropdownTimeout);
          positionDropdown();
          options.style.display = "block";
          button.setAttribute("aria-expanded", "true");
        }
        function hideDropdown() {
          dropdownTimeout = setTimeout(() => {
            options.style.display = "none";
            button.setAttribute("aria-expanded", "false");
          }, 150);
        }
        button.addEventListener("mouseenter", showDropdown);
        button.addEventListener("mouseleave", hideDropdown);
        options.addEventListener("mouseenter", showDropdown);
        options.addEventListener("mouseleave", hideDropdown);
        button.addEventListener("keydown", (e) => {
          if (e.key === "Enter" || e.key === " ") {
            if (options.style.display === "block") {
              hideDropdown();
            } else {
              showDropdown();
            }
          }
        });

        controls.insertBefore(button, controls.firstChild);
      },

      addSpeedControlButton(controls) {
        const speedBtn = document.createElement("div");
        speedBtn.className = "ytp-button speed-control-btn";
        speedBtn.innerHTML = `<span>${this.speedControl.currentSpeed}×</span>`;

        const speedOptions = document.createElement("div");
        speedOptions.className = "speed-options";

        [0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 2.0, 3.0].forEach((speed) => {
          const option = document.createElement("div");
          option.className = `speed-option-item${parseFloat(speed) === this.speedControl.currentSpeed ? " speed-option-active" : ""}`;
          option.textContent = `${speed}x`;
          option.dataset.speed = speed;
          option.addEventListener("click", () => this.changeSpeed(speed));
          speedOptions.appendChild(option);
        });

        speedBtn.appendChild(speedOptions);

        let isHovering = false;
        speedBtn.addEventListener("mouseenter", () => {
          isHovering = true;
          speedOptions.style.display = "block";
        });

        speedBtn.addEventListener("mouseleave", () => {
          isHovering = false;
          setTimeout(() => {
            if (!isHovering) speedOptions.style.display = "none";
          }, 150);
        });

        controls.insertBefore(speedBtn, controls.firstChild);
      },

      captureFrame() {
        const video = this.getElement("video", false);
        if (!video) return;

        const canvas = document.createElement("canvas");
        canvas.width = video.videoWidth;
        canvas.height = video.videoHeight;
        const ctx = canvas.getContext("2d");
        ctx.drawImage(video, 0, 0, canvas.width, canvas.height);

        const videoTitle = document.title.replace(/\s-\sYouTube$/, "").trim();
        const link = document.createElement("a");
        link.href = canvas.toDataURL("image/png");
        link.download = `${videoTitle}.png`;
        link.click();
      },


      showNotification(message, duration = 2000) {
        const existingNotification = this.getElement(".youtube-enhancer-notification", false);
        if (existingNotification) existingNotification.remove();

        const notification = document.createElement("div");
        notification.className = "youtube-enhancer-notification";
        notification.textContent = message;
        document.body.appendChild(notification);

        setTimeout(() => {
          notification.style.opacity = "0";
          setTimeout(() => notification.remove(), 500);
        }, duration);
      },

      handleFullscreenChange() {
        const isFullscreen = document.fullscreenElement || document.webkitFullscreenElement;
        document.querySelectorAll(".ytp-screenshot-button, .ytp-cobalt-button").forEach((button) => {
          button.style.bottom = isFullscreen ? "15px" : "12px";
        });
      },

      changeSpeed(speed) {
        speed = parseFloat(speed);
        this.speedControl.currentSpeed = speed;
        localStorage.setItem(this.speedControl.storageKey, speed);

        const speedBtn = this.getElement(".speed-control-btn span", false);
        if (speedBtn) speedBtn.textContent = `${speed}×`;

        document.querySelectorAll(".speed-option-item").forEach((option) => {
          option.classList.toggle("speed-option-active", parseFloat(option.dataset.speed) === speed);
        });

        this.applyCurrentSpeed();
        this.showSpeedIndicator(speed);
      },

      applyCurrentSpeed() {
        document.querySelectorAll("video").forEach((video) => {
          if (video && video.playbackRate !== this.speedControl.currentSpeed) {
            video.playbackRate = this.speedControl.currentSpeed;
          }
        });
      },

      setupVideoObserver() {
        if (this._speedInterval) clearInterval(this._speedInterval);
        this._speedInterval = setInterval(() => this.applyCurrentSpeed(), 1000);
      },

      setupNavigationObserver() {
        let lastUrl = location.href;

        document.addEventListener("fullscreenchange", this.handleFullscreenChange.bind(this));

        document.addEventListener("yt-navigate-finish", () => {
          if (location.href.includes("watch?v=")) this.setupCurrentPage();
          this.addSettingsButtonToHeader();
        });

        const observer = new MutationObserver(() => {
          if (lastUrl !== location.href) {
            lastUrl = location.href;
            if (location.href.includes("watch?v=")) {
              setTimeout(() => this.setupCurrentPage(), 500);
            }
            this.addSettingsButtonToHeader();
          }
        });

        observer.observe(document.body, { childList: true, subtree: true });
      },

      showSpeedIndicator(speed) {
        const indicator = document.getElementById("speed-indicator");
        if (!indicator) return;

        if (this.speedControl.activeAnimationId) {
          cancelAnimationFrame(this.speedControl.activeAnimationId);
        }

        indicator.textContent = `${speed}×`;
        indicator.style.display = "block";
        indicator.style.opacity = "0.8";

        let startTime = performance.now();
        const fadeOut = (timestamp) => {
          const elapsed = timestamp - startTime;
          const progress = Math.min(elapsed / 1500, 1);

          indicator.style.opacity = 0.8 * (1 - progress);

          if (progress < 1) {
            this.speedControl.activeAnimationId = requestAnimationFrame(fadeOut);
          } else {
            indicator.style.display = "none";
            this.speedControl.activeAnimationId = null;
          }
        };

        this.speedControl.activeAnimationId = requestAnimationFrame(fadeOut);
      },
    };

    document.readyState === "loading"
      ? document.addEventListener("DOMContentLoaded", YouTubeEnhancer.init.bind(YouTubeEnhancer))
      : YouTubeEnhancer.init();
  })();

  // Update checker module
  (function () {
    'use strict';

    const UPDATE_CONFIG = {
      enabled: true,
      checkInterval: 24 * 60 * 60 * 1000, // 24 hours
      updateUrl: 'https://update.greasyfork.org/scripts/537017/YouTube%20%2B.meta.js',
      currentVersion: '1.9',
      storageKey: 'youtube_plus_update_check',
      notificationDuration: 8000,
      autoInstallUrl: 'https://update.greasyfork.org/scripts/537017/YouTube%20%2B.user.js'
    };

    const updateState = {
      lastCheck: 0,
      lastVersion: UPDATE_CONFIG.currentVersion,
      updateAvailable: false,
      checkInProgress: false,
      updateDetails: null
    };

    // Optimized utilities
    const utils = {
      loadSettings: () => {
        try {
          const saved = localStorage.getItem(UPDATE_CONFIG.storageKey);
          if (saved) Object.assign(updateState, JSON.parse(saved));
        } catch (e) { }
      },

      saveSettings: () => {
        try {
          localStorage.setItem(UPDATE_CONFIG.storageKey, JSON.stringify({
            lastCheck: updateState.lastCheck,
            lastVersion: updateState.lastVersion,
            updateAvailable: updateState.updateAvailable,
            updateDetails: updateState.updateDetails
          }));
        } catch (e) { }
      },

      compareVersions: (v1, v2) => {
        const normalize = v => v.replace(/[^\d.]/g, '').split('.').map(n => parseInt(n) || 0);
        const [parts1, parts2] = [normalize(v1), normalize(v2)];
        const maxLength = Math.max(parts1.length, parts2.length);

        for (let i = 0; i < maxLength; i++) {
          const diff = (parts1[i] || 0) - (parts2[i] || 0);
          if (diff !== 0) return diff;
        }
        return 0;
      },

      parseMetadata: text => {
        const extractField = field => text.match(new RegExp(`@${field}\\s+([^\\r\\n]+)`))?.[1]?.trim();
        return {
          version: extractField('version'),
          description: extractField('description') || '',
          downloadUrl: extractField('downloadURL') || UPDATE_CONFIG.autoInstallUrl
        };
      },

      formatTimeAgo: timestamp => {
        if (!timestamp) return 'Never';
        const diffMs = Date.now() - timestamp;
        const diffDays = Math.floor(diffMs / 86400000);
        const diffHours = Math.floor(diffMs / 3600000);
        const diffMinutes = Math.floor(diffMs / 60000);

        if (diffDays > 0) return `${diffDays}d ago`;
        if (diffHours > 0) return `${diffHours}h ago`;
        if (diffMinutes > 0) return `${diffMinutes}m ago`;
        return 'Just now';
      },

      showNotification: (text, type = 'info', duration = 3000) => {
        const colors = {
          info: 'rgba(34, 197, 94, 0.9)',
          error: 'rgba(220, 38, 38, 0.9)',
          update: 'linear-gradient(135deg, rgba(255, 69, 0, 0.95), rgba(255, 140, 0, 0.95))'
        };

        const notification = document.createElement('div');
        notification.className = 'youtube-enhancer-notification';
        notification.style.cssText = `
          position: fixed; bottom: 20px; right: 20px; z-index: 10001;
          background: ${colors[type] || colors.info}; color: white;
          padding: 12px 20px; border-radius: 8px; max-width: 300px;
          box-shadow: 0 4px 20px rgba(0,0,0,0.3); backdrop-filter: blur(10px);
          border: 1px solid rgba(255,255,255,0.2);
          animation: slideInFromRight 0.3s ease-out;
        `;
        notification.textContent = text;
        document.body.appendChild(notification);

        setTimeout(() => {
          notification.style.transform = 'translateX(100%)';
          notification.style.opacity = '0';
          setTimeout(() => notification.remove(), 300);
        }, duration);
      }
    };

    // Enhanced update notification
    const showUpdateNotification = updateDetails => {
      const notification = document.createElement('div');
      notification.className = 'youtube-enhancer-notification update-notification';
      notification.style.cssText = `
        position: fixed; bottom: 20px; right: 20px; z-index: 10001; max-width: 350px;
        background: linear-gradient(135deg, rgba(255, 69, 0, 0.95), rgba(255, 140, 0, 0.95));
        color: white; padding: 16px 20px; border-radius: 12px;
        box-shadow: 0 8px 32px rgba(255, 69, 0, 0.4); backdrop-filter: blur(16px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        animation: slideInFromRight 0.4s ease-out;
      `;

      notification.innerHTML = `
        <div style="display: flex; align-items: flex-start; gap: 12px;">
          <div style="background: rgba(255, 255, 255, 0.2); border-radius: 8px; padding: 8px; flex-shrink: 0;">
            <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
              <path d="M21 12c0 1-1 2-1 2s-1-1-1-2 1-2 1-2 1 1 1 2z"/>
              <path d="m21 12-5-5v3H8v4h8v3l5-5z"/>
            </svg>
          </div>
          <div style="flex: 1; min-width: 0;">
            <div style="font-weight: 600; font-size: 15px; margin-bottom: 4px;">YouTube + Update Available</div>
            <div style="font-size: 13px; opacity: 0.9; margin-bottom: 12px;">
              Version ${updateDetails.version} • ${updateDetails.description || 'New features and improvements'}
            </div>
            <div style="display: flex; gap: 8px;">
              <button id="update-install-btn" style="
                background: rgba(255, 255, 255, 0.9); color: #ff4500; border: none;
                padding: 8px 16px; border-radius: 6px; cursor: pointer;
                font-size: 13px; font-weight: 600; transition: all 0.2s ease;
              ">Install Update</button>
              <button id="update-dismiss-btn" style="
                background: rgba(255, 255, 255, 0.1); color: white;
                border: 1px solid rgba(255, 255, 255, 0.3); padding: 8px 12px;
                border-radius: 6px; cursor: pointer; font-size: 13px; transition: all 0.2s ease;
              ">Later</button>
            </div>
          </div>
          <button id="update-close-btn" style="
            background: none; border: none; color: rgba(255, 255, 255, 0.8);
            cursor: pointer; padding: 4px; border-radius: 4px; flex-shrink: 0;
          ">✕</button>
        </div>
        <style>
          @keyframes slideInFromRight {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
          }
        </style>
      `;

      document.body.appendChild(notification);

      const removeNotification = () => {
        notification.style.animation = 'slideInFromRight 0.3s ease-in reverse';
        setTimeout(() => notification.remove(), 300);
      };

      // Event handlers
      notification.querySelector('#update-install-btn').addEventListener('click', () => {
        try {
          window.open(updateDetails.downloadUrl, '_blank');
          sessionStorage.setItem('update_dismissed', updateDetails.version);
          removeNotification();
          setTimeout(() => utils.showNotification('Update started! Follow your userscript manager instructions.'), 500);
        } catch (error) {
          console.error('Error installing update:', error);
          window.open('https://greasyfork.org/en/scripts/537017-youtube', '_blank');
          removeNotification();
        }
      });

      notification.querySelector('#update-dismiss-btn').addEventListener('click', () => {
        sessionStorage.setItem('update_dismissed', updateDetails.version);
        removeNotification();
      });

      notification.querySelector('#update-close-btn').addEventListener('click', removeNotification);

      // Auto-dismiss
      setTimeout(() => {
        if (notification.isConnected) removeNotification();
      }, UPDATE_CONFIG.notificationDuration);
    };

    // Optimized update checker
    const checkForUpdates = async (force = false) => {
      if (!UPDATE_CONFIG.enabled || updateState.checkInProgress) return;

      const now = Date.now();
      if (!force && (now - updateState.lastCheck) < UPDATE_CONFIG.checkInterval) return;

      updateState.checkInProgress = true;

      try {
        const controller = new AbortController();
        const timeoutId = setTimeout(() => controller.abort(), 10000);

        const response = await fetch(UPDATE_CONFIG.updateUrl, {
          method: 'GET',
          cache: 'no-cache',
          signal: controller.signal,
          headers: { 'Accept': 'text/plain', 'User-Agent': 'YouTube+ UpdateChecker' }
        });

        clearTimeout(timeoutId);

        if (!response.ok) throw new Error(`HTTP ${response.status}: ${response.statusText}`);

        const metaText = await response.text();
        const updateDetails = utils.parseMetadata(metaText);

        if (updateDetails.version) {
          updateState.lastCheck = now;
          updateState.lastVersion = updateDetails.version;
          updateState.updateDetails = updateDetails;

          const comparison = utils.compareVersions(UPDATE_CONFIG.currentVersion, updateDetails.version);
          updateState.updateAvailable = comparison < 0;

          if (updateState.updateAvailable &&
            (force || sessionStorage.getItem('update_dismissed') !== updateDetails.version)) {
            showUpdateNotification(updateDetails);
            console.log(`YouTube + Update available: ${updateDetails.version}`);
          } else if (force) {
            utils.showNotification(
              updateState.updateAvailable
                ? `Update ${updateDetails.version} available!`
                : `You're using the latest version (${UPDATE_CONFIG.currentVersion})`
            );
          }

          utils.saveSettings();
        }
      } catch (error) {
        console.error('Update check failed:', error);
        if (force) utils.showNotification(`Update check failed: ${error.message}`, 'error', 4000);
      } finally {
        updateState.checkInProgress = false;
      }
    };

    // Optimized settings UI
    const addUpdateSettings = () => {
      const aboutSection = document.querySelector('.ytp-plus-settings-section[data-section="about"]');
      if (!aboutSection || document.querySelector('.update-settings-container')) return;

      const updateContainer = document.createElement('div');
      updateContainer.className = 'update-settings-container';
      updateContainer.style.cssText = `
        padding: 16px; margin-top: 20px; border-radius: 12px;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
        border: 1px solid var(--yt-glass-border); backdrop-filter: blur(8px);
      `;

      const lastCheckTime = utils.formatTimeAgo(updateState.lastCheck);

      updateContainer.innerHTML = `
        <div style="display: flex; align-items: center; gap: 12px; margin-bottom: 12px;">
          <h3 style="margin: 0; font-size: 16px; font-weight: 600; color: var(--yt-spec-text-primary);">
            Enhanced YouTube experience with powerful features
          </h3>
        </div>
        
        <div style="display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center; 
                    padding: 16px; background: rgba(255, 255, 255, 0.03); border-radius: 10px; margin-bottom: 16px;">
          <div>
            <div style="display: flex; align-items: center; gap: 8px; margin-bottom: 4px;">
              <span style="font-size: 14px; font-weight: 600; color: var(--yt-spec-text-primary);">Current Version</span>
              <span style="font-size: 13px; font-weight: 600; color: var(--yt-spec-text-primary); 
                           padding: 3px 10px; background: rgba(255, 255, 255, 0.1); border-radius: 12px; 
                           border: 1px solid rgba(255, 255, 255, 0.2);">${UPDATE_CONFIG.currentVersion}</span>
            </div>
            <div style="font-size: 12px; color: var(--yt-spec-text-secondary);">
              Last checked: <span style="font-weight: 500;">${lastCheckTime}</span>
              ${updateState.lastVersion && updateState.lastVersion !== UPDATE_CONFIG.currentVersion ?
          `<br>Latest available: <span style="color: #ff6666; font-weight: 600;">${updateState.lastVersion}</span>` : ''
        }
            </div>
          </div>
          
          ${updateState.updateAvailable ? `
            <div style="display: flex; flex-direction: column; align-items: flex-end; gap: 8px;">
              <div style="display: flex; align-items: center; gap: 8px; padding: 6px 12px; 
                          background: linear-gradient(135deg, rgba(255, 68, 68, 0.2), rgba(255, 68, 68, 0.3)); 
                          border: 1px solid rgba(255, 68, 68, 0.4); border-radius: 20px;">
                <div style="width: 6px; height: 6px; background: #ff4444; border-radius: 50%; animation: pulse 2s infinite;"></div>
                <span style="font-size: 11px; color: #ff6666; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;">
                  Update Available
                </span>
              </div>
              <button id="install-update-btn" style="background: linear-gradient(135deg, #ff4500, #ff6b35); 
                      color: white; border: none; padding: 8px 16px; border-radius: 8px; cursor: pointer; 
                      font-size: 12px; font-weight: 600; transition: all 0.3s ease; 
                      box-shadow: 0 4px 12px rgba(255, 69, 0, 0.3);">Install Now</button>
            </div>
          ` : `
            <div style="display: flex; align-items: center; gap: 8px; padding: 6px 12px; 
                        background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(34, 197, 94, 0.3)); 
                        border: 1px solid rgba(34, 197, 94, 0.4); border-radius: 20px;">
              <div style="width: 6px; height: 6px; background: #22c55e; border-radius: 50%;"></div>
              <span style="font-size: 11px; color: #22c55e; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;">
                Up to Date
              </span>
            </div>
          `}
        </div>
        
        <div style="display: flex; gap: 12px;">
          <button class="ytp-plus-button ytp-plus-button-primary" id="manual-update-check" 
                  style="flex: 1; padding: 12px; font-size: 13px; font-weight: 600;">
            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" style="margin-right: 6px;">
              <path d="M21.5 2v6h-6M2.5 22v-6h6M19.13 11.48A10 10 0 0 0 12 2C6.48 2 2 6.48 2 12c0 .34.02.67.05 1M4.87 12.52A10 10 0 0 0 12 22c5.52 0 10-4.48 10-10 0-.34-.02-.67-.05-1"/>
            </svg>
            Check for Updates
          </button>
          <button class="ytp-plus-button" id="open-update-page" 
                  style="padding: 12px 16px; font-size: 13px; background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2);">
            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="gray" stroke-width="2">
              <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"/>
              <polyline points="15,3 21,3 21,9"/>
              <line x1="10" y1="14" x2="21" y2="3"/>
            </svg>
          </button>
        </div>

        <style>
          @keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.7; transform: scale(1.1); } }
          @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
        </style>
      `;

      aboutSection.appendChild(updateContainer);

      // Event listeners with optimization
      const attachClickHandler = (id, handler) => {
        const element = document.getElementById(id);
        if (element) element.addEventListener('click', handler);
      };

      attachClickHandler('manual-update-check', async e => {
        const button = e.target;
        const originalHTML = button.innerHTML;

        button.innerHTML = `
          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" 
               style="margin-right: 6px; animation: spin 1s linear infinite;">
            <path d="M21.5 2v6h-6M2.5 22v-6h6M19.13 11.48A10 10 0 0 0 12 2C6.48 2 2 6.48 2 12c0 .34.02.67.05 1M4.87 12.52A10 10 0 0 0 12 22c5.52 0 10-4.48 10-10 0-.34-.02-.67-.05-1"/>
          </svg>
          Checking...
        `;
        button.disabled = true;

        await checkForUpdates(true);

        setTimeout(() => {
          button.innerHTML = originalHTML;
          button.disabled = false;
        }, 1000);
      });

      attachClickHandler('install-update-btn', () => {
        const url = updateState.updateDetails?.downloadUrl || 'https://greasyfork.org/en/scripts/537017-youtube';
        window.open(url, '_blank');
      });

      attachClickHandler('open-update-page', () => {
        window.open('https://greasyfork.org/en/scripts/537017-youtube', '_blank');
      });
    };

    // Optimized initialization
    const init = () => {
      utils.loadSettings();

      // Initial check with delay
      setTimeout(() => checkForUpdates(), 3000);

      // Periodic checks
      const intervalId = setInterval(() => checkForUpdates(), UPDATE_CONFIG.checkInterval);
      window.addEventListener('beforeunload', () => clearInterval(intervalId));

      // Optimized settings modal observer
      let settingsObserved = false;
      const observer = new MutationObserver(mutations => {
        if (settingsObserved) return;

        for (const mutation of mutations) {
          for (const node of mutation.addedNodes) {
            if (node.nodeType === 1 && node.classList?.contains('ytp-plus-settings-modal')) {
              settingsObserved = true;
              setTimeout(addUpdateSettings, 100);
              return;
            }
          }
        }

        if (document.querySelector('.ytp-plus-settings-nav-item[data-section="about"].active:not([data-observed])')) {
          document.querySelector('.ytp-plus-settings-nav-item[data-section="about"]').setAttribute('data-observed', '');
          setTimeout(addUpdateSettings, 50);
        }
      });

      observer.observe(document.body, { childList: true, subtree: true });

      // Optimized click handler
      document.addEventListener('click', e => {
        if (e.target.classList?.contains('ytp-plus-settings-nav-item') && e.target.dataset.section === 'about') {
          setTimeout(addUpdateSettings, 50);
        }
      }, { passive: true, capture: true });

      console.log('YouTube + Update Checker initialized', {
        version: UPDATE_CONFIG.currentVersion,
        enabled: UPDATE_CONFIG.enabled,
        lastCheck: new Date(updateState.lastCheck).toLocaleString(),
        updateAvailable: updateState.updateAvailable
      });
    };

    // Start
    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', init);
    } else {
      init();
    }

  })();

  // Enhanced Tabviews
  (function () {
    'use strict';

    // Configuration
    const config = {
      enabled: true,
      storageKey: 'youtube_top_button_settings'
    };

    // Styles
    const addStyles = () => {
      if (document.getElementById('custom-styles')) return;

      const style = document.createElement('style');
      style.id = 'custom-styles';
      style.textContent = `
      :root{--scrollbar-width:8px;--scrollbar-track:transparent;--scrollbar-thumb:rgba(144,144,144,.5);--scrollbar-thumb-hover:rgba(170,170,170,.7);--scrollbar-thumb-active:rgba(190,190,190,.9);}
      ::-webkit-scrollbar{width:var(--scrollbar-width)!important;height:var(--scrollbar-width)!important;}
      ::-webkit-scrollbar-track{background:var(--scrollbar-track)!important;border-radius:4px!important;}
      ::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb)!important;border-radius:4px!important;transition:background .2s!important;}
      ::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)!important;}
      ::-webkit-scrollbar-thumb:active{background:var(--scrollbar-thumb-active)!important;}
      ::-webkit-scrollbar-corner{background:transparent!important;}
      *{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) var(--scrollbar-track);}
      html[dark]{--scrollbar-thumb:rgba(144,144,144,.4);--scrollbar-thumb-hover:rgba(170,170,170,.6);--scrollbar-thumb-active:rgba(190,190,190,.8);}
      .top-button{position:absolute;bottom:16px;right:16px;width:40px;height:40px;background:var(--yt-top-btn-bg,rgba(0,0,0,.7));color:var(--yt-top-btn-color,#fff);border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;visibility:hidden;transition:all .3s;backdrop-filter:blur(12px) saturate(180%);-webkit-backdrop-filter:blur(12px) saturate(180%);border:1px solid var(--yt-top-btn-border,rgba(255,255,255,.1));background:rgba(255,255,255,.12);box-shadow:0 8px 32px 0 rgba(31,38,135,.18);}
      .top-button:hover{background:var(--yt-top-btn-hover,rgba(0,0,0,.15));transform:translateY(-2px) scale(1.07);box-shadow:0 8px 32px rgba(0,0,0,.25);}
      .top-button.visible{opacity:1;visibility:visible;}
      .top-button svg{transition:transform .2s;}
      .top-button:hover svg{transform:translateY(-1px) scale(1.1);}
      html[dark]{--yt-top-btn-bg:rgba(255,255,255,.10);--yt-top-btn-color:#fff;--yt-top-btn-border:rgba(255,255,255,.18);--yt-top-btn-hover:rgba(255,255,255,.18);}
      html:not([dark]){--yt-top-btn-bg:rgba(255,255,255,.12);--yt-top-btn-color:#222;--yt-top-btn-border:rgba(0,0,0,.08);--yt-top-btn-hover:rgba(255,255,255,.18);}
      ytd-watch-flexy:not([tyt-tab^="#"]) .top-button{display:none;}
        `;
      document.head.appendChild(style);
    };

    // Button functionality
    const handleScroll = (scrollContainer) => {
      const button = document.getElementById('right-tabs-top-button');
      if (!button || !scrollContainer) return;
      button.classList.toggle('visible', scrollContainer.scrollTop > 100);
    };

    const setupScrollListener = () => {
      document.querySelectorAll('.tab-content-cld').forEach(tab => {
        tab.removeEventListener('scroll', tab._topButtonScrollHandler);
      });

      const activeTab = document.querySelector('#right-tabs .tab-content-cld:not(.tab-content-hidden)');
      if (activeTab) {
        const scrollHandler = () => handleScroll(activeTab);
        activeTab._topButtonScrollHandler = scrollHandler;
        activeTab.addEventListener('scroll', scrollHandler, { passive: true });
        handleScroll(activeTab);
      }
    };

    const createButton = () => {
      const rightTabs = document.querySelector('#right-tabs');
      if (!rightTabs || document.getElementById('right-tabs-top-button')) return;
      if (!config.enabled) return;

      const button = document.createElement('button');
      button.id = 'right-tabs-top-button';
      button.className = 'top-button';
      button.title = 'Scroll to top';
      button.innerHTML = '<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="m18 15-6-6-6 6"/></svg>';

      button.addEventListener('click', () => {
        const activeTab = document.querySelector('#right-tabs .tab-content-cld:not(.tab-content-hidden)');
        if (activeTab) activeTab.scrollTo({ top: 0, behavior: 'smooth' });
      });

      rightTabs.style.position = 'relative';
      rightTabs.appendChild(button);
      setupScrollListener();
    };

    // Observers
    const observeTabChanges = () => {
      const observer = new MutationObserver(mutations => {
        if (mutations.some(m =>
          m.type === 'attributes' &&
          m.attributeName === 'class' &&
          m.target.classList.contains('tab-content-cld'))) {
          setTimeout(setupScrollListener, 100);
        }
      });

      const rightTabs = document.querySelector('#right-tabs');
      if (rightTabs) {
        observer.observe(rightTabs, {
          attributes: true,
          subtree: true,
          attributeFilter: ['class']
        });
      }
    };

    // Events
    const setupEvents = () => {
      document.addEventListener('click', (e) => {
        if (e.target.closest('.tab-btn[tyt-tab-content]')) {
          setTimeout(setupScrollListener, 100);
        }
      }, true);
    };

    // Initialize
    const init = () => {
      addStyles();
      setupEvents();

      const checkForTabs = () => {
        if (document.querySelector('#right-tabs')) {
          createButton();
          observeTabChanges();
        } else {
          setTimeout(checkForTabs, 500);
        }
      };

      checkForTabs();
    };

    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', init);
    } else {
      init();
    }
  })();

  // Shorts Keyboard controls
  (function () {
    'use strict';

    // Configuration
    const config = {
      enabled: true,
      shortcuts: {
        seekBackward: { key: 'ArrowLeft', description: 'Seek backward 5s' },
        seekForward: { key: 'ArrowRight', description: 'Seek forward 5s' },
        volumeUp: { key: '+', description: 'Volume up' },
        volumeDown: { key: '-', description: 'Volume down' },
        mute: { key: 'm', description: 'Mute/Unmute' },
        showHelp: { key: '?', description: 'Show/Hide help', editable: false }
      },
      storageKey: 'youtube_shorts_keyboard_settings'
    };

    // State management
    const state = {
      helpVisible: false,
      lastAction: null,
      actionTimeout: null,
      editingShortcut: null,
      cachedVideo: null,
      lastVideoCheck: 0
    };

    // Optimized video selector with caching
    const getCurrentVideo = (() => {
      const selectors = [
        'ytd-reel-video-renderer[is-active] video',
        '#shorts-player video',
        'video'
      ];

      return () => {
        const now = Date.now();
        if (state.cachedVideo?.isConnected && now - state.lastVideoCheck < 100) {
          return state.cachedVideo;
        }

        for (const selector of selectors) {
          const video = document.querySelector(selector);
          if (video) {
            state.cachedVideo = video;
            state.lastVideoCheck = now;
            return video;
          }
        }

        state.cachedVideo = null;
        return null;
      };
    })();

    // Optimized utilities
    const utils = {
      isInShortsPage: () => location.pathname.startsWith('/shorts/'),

      isInputFocused: () => {
        const el = document.activeElement;
        return el?.matches?.('input, textarea, [contenteditable="true"]') || el?.isContentEditable;
      },

      loadSettings: () => {
        try {
          const saved = localStorage.getItem(config.storageKey);
          if (saved) Object.assign(config, JSON.parse(saved));
        } catch (e) { }
      },

      saveSettings: () => {
        try {
          localStorage.setItem(config.storageKey, JSON.stringify({
            enabled: config.enabled,
            shortcuts: config.shortcuts
          }));
        } catch (e) { }
      },

      getDefaultShortcuts: () => ({
        seekBackward: { key: 'ArrowLeft', description: 'Seek backward 5s' },
        seekForward: { key: 'ArrowRight', description: 'Seek forward 5s' },
        volumeUp: { key: '+', description: 'Volume up' },
        volumeDown: { key: '-', description: 'Volume down' },
        mute: { key: 'm', description: 'Mute/Unmute' },
        showHelp: { key: '?', description: 'Show/Hide help', editable: false }
      })
    };

    // Optimized feedback system
    const feedback = (() => {
      let element = null;

      const create = () => {
        if (element) return element;

        element = document.createElement('div');
        element.id = 'shorts-keyboard-feedback';
        element.style.cssText = `
          position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);
          background:var(--shorts-feedback-bg,rgba(255,255,255,.1));
          backdrop-filter:blur(16px) saturate(150%);
          border:1px solid var(--shorts-feedback-border,rgba(255,255,255,.15));
          border-radius:20px;
          color:var(--shorts-feedback-color,#fff);
          padding:18px 32px;font-size:20px;font-weight:700;
          z-index:10000;opacity:0;visibility:hidden;pointer-events:none;
          transition:all .3s cubic-bezier(.4,0,.2,1);text-align:center;
          box-shadow:0 8px 32px rgba(0,0,0,.4);
          background: rgba(255,255,255,0.15);
          border: 1px solid rgba(255,255,255,0.2);
          box-shadow: 0 8px 32px 0 rgba(31,38,135,0.37);
          backdrop-filter: blur(12px) saturate(180%);
          -webkit-backdrop-filter: blur(12px) saturate(180%);
        `;
        document.body.appendChild(element);
        return element;
      };

      return {
        show: (text) => {
          state.lastAction = text;
          clearTimeout(state.actionTimeout);

          const el = create();
          el.textContent = text;

          requestAnimationFrame(() => {
            el.style.opacity = '1';
            el.style.visibility = 'visible';
            el.style.transform = 'translate(-50%, -50%) scale(1.05)';
          });

          state.actionTimeout = setTimeout(() => {
            el.style.opacity = '0';
            el.style.visibility = 'hidden';
            el.style.transform = 'translate(-50%, -50%) scale(0.95)';
          }, 1500);
        }
      };
    })();

    // Optimized actions
    const actions = {
      seekBackward: () => {
        const video = getCurrentVideo();
        if (video) {
          video.currentTime = Math.max(0, video.currentTime - 5);
          feedback.show('-5s');
        }
      },

      seekForward: () => {
        const video = getCurrentVideo();
        if (video) {
          video.currentTime = Math.min(video.duration || Infinity, video.currentTime + 5);
          feedback.show('+5s');
        }
      },

      volumeUp: () => {
        const video = getCurrentVideo();
        if (video) {
          video.volume = Math.min(1, video.volume + 0.1);
          feedback.show(`${Math.round(video.volume * 100)}%`);
        }
      },

      volumeDown: () => {
        const video = getCurrentVideo();
        if (video) {
          video.volume = Math.max(0, video.volume - 0.1);
          feedback.show(`${Math.round(video.volume * 100)}%`);
        }
      },

      mute: () => {
        const video = getCurrentVideo();
        if (video) {
          video.muted = !video.muted;
          feedback.show(video.muted ? '🔇' : '🔊');
        }
      },

      showHelp: () => helpPanel.toggle()
    };

    // Help panel system
    const helpPanel = (() => {
      let panel = null;

      const create = () => {
        if (panel) return panel;

        panel = document.createElement('div');
        panel.id = 'shorts-keyboard-help';
        panel.className = 'shorts-help-panel';

        const render = () => {
          panel.innerHTML = `
            <div class="help-header">
              <h3>Keyboard Shortcuts</h3>
              <button class="help-close">✕</button>
            </div>
            <div class="help-content">
              ${Object.entries(config.shortcuts).map(([action, shortcut]) =>
            `<div class="help-item">
                  <kbd data-action="${action}" ${shortcut.editable === false ? 'class="non-editable"' : ''}>${shortcut.key === ' ' ? 'Space' : shortcut.key}</kbd>
                  <span>${shortcut.description}</span>
                </div>`
          ).join('')}
            </div>
            <div class="help-footer">
              <button class="reset-all-shortcuts">Reset All</button>
            </div>
          `;

          panel.querySelector('.help-close').onclick = () => helpPanel.hide();
          panel.querySelector('.reset-all-shortcuts').onclick = () => {
            if (confirm('Reset all shortcuts?')) {
              config.shortcuts = utils.getDefaultShortcuts();
              utils.saveSettings();
              feedback.show('Shortcuts reset');
              render();
            }
          };

          panel.querySelectorAll('kbd[data-action]:not(.non-editable)').forEach(kbd => {
            kbd.onclick = () => editShortcut(kbd.dataset.action, config.shortcuts[kbd.dataset.action].key);
          });
        };

        render();
        document.body.appendChild(panel);
        return panel;
      };

      return {
        show: () => {
          const p = create();
          p.classList.add('visible');
          state.helpVisible = true;
          p.focus();
        },

        hide: () => {
          if (panel) {
            panel.classList.remove('visible');
            state.helpVisible = false;
          }
        },

        toggle: () => state.helpVisible ? helpPanel.hide() : helpPanel.show(),

        refresh: () => {
          if (panel) {
            panel.remove();
            panel = null;
          }
        }
      };
    })();

    // Shortcut editing
    const editShortcut = (actionKey, currentKey) => {
      const dialog = document.createElement('div');
      dialog.className = 'shortcut-edit-dialog';
      dialog.innerHTML = `
        <div class="shortcut-edit-content">
          <h4>Edit: ${config.shortcuts[actionKey].description}</h4>
          <p>Press any key to set as new shortcut</p>
          <div class="current-shortcut">Current: <kbd>${currentKey === ' ' ? 'Space' : currentKey}</kbd></div>
          <button class="shortcut-cancel">Cancel</button>
        </div>
      `;

      document.body.appendChild(dialog);
      state.editingShortcut = actionKey;

      const handleKey = (e) => {
        e.preventDefault();
        e.stopPropagation();
        if (e.key === 'Escape') return cleanup();

        const conflict = Object.keys(config.shortcuts).find(key =>
          key !== actionKey && config.shortcuts[key].key === e.key
        );
        if (conflict) {
          feedback.show(`Key "${e.key}" already used`);
          return;
        }

        config.shortcuts[actionKey].key = e.key;
        utils.saveSettings();
        feedback.show('Shortcut updated');
        helpPanel.refresh();
        cleanup();
      };

      const cleanup = () => {
        document.removeEventListener('keydown', handleKey, true);
        dialog.remove();
        state.editingShortcut = null;
      };

      dialog.querySelector('.shortcut-cancel').onclick = cleanup;
      dialog.onclick = (e) => e.target === dialog && cleanup();
      document.addEventListener('keydown', handleKey, true);
    };

    // Optimized styles with glassmorphism
    const addStyles = () => {
      if (document.getElementById('shorts-keyboard-styles')) return;

      const style = document.createElement('style');
      style.id = 'shorts-keyboard-styles';
      style.textContent = `
        :root{--shorts-feedback-bg:rgba(255,255,255,.15);--shorts-feedback-border:rgba(255,255,255,.2);--shorts-feedback-color:#fff;--shorts-help-bg:rgba(255,255,255,.15);--shorts-help-border:rgba(255,255,255,.2);--shorts-help-color:#fff;}
        html[dark],body[dark]{--shorts-feedback-bg:rgba(34,34,34,.7);--shorts-feedback-border:rgba(255,255,255,.15);--shorts-feedback-color:#fff;--shorts-help-bg:rgba(34,34,34,.7);--shorts-help-border:rgba(255,255,255,.1);--shorts-help-color:#fff;}
        html:not([dark]){--shorts-feedback-bg:rgba(255,255,255,.95);--shorts-feedback-border:rgba(0,0,0,.08);--shorts-feedback-color:#222;--shorts-help-bg:rgba(255,255,255,.98);--shorts-help-border:rgba(0,0,0,.08);--shorts-help-color:#222;}
        .shorts-help-panel{position:fixed;top:50%;left:25%;transform:translate(-50%,-50%) scale(.9);background:var(--shorts-help-bg,rgba(255,255,255,.15));backdrop-filter:blur(15px) saturate(180%);-webkit-backdrop-filter:blur(15px) saturate(180%);border:1px solid var(--shorts-help-border,rgba(255,255,255,.2));color:var(--shorts-help-color,#fff);border-radius:20px;box-shadow:0 8px 32px rgba(0,0,0,.5);z-index:10001;opacity:0;visibility:hidden;transition:all .3s ease;width:340px;max-width:95vw;max-height:80vh;overflow:hidden;outline:none}
        .shorts-help-panel.visible{opacity:1;visibility:visible;transform:translate(-50%,-50%) scale(1)}
        .help-header{display:flex;justify-content:space-between;align-items:center;padding:24px 24px 12px 24px;border-bottom:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05)}
        .help-header h3{margin:0;font-size:20px;font-weight:700}
        .help-close{background:none;border:none;color:inherit;font-size:26px;cursor:pointer;padding:4px 8px;border-radius:6px;transition:background-color .2s}
        .help-close:hover{color:var(--yt-accent,#ff0000);}
        .help-content{padding:18px 24px;max-height:400px;overflow-y:auto}
        .help-item{display:flex;align-items:center;margin-bottom:14px;gap:18px}
        .help-item kbd{background:rgba(255,255,255,.15);color:inherit;padding:7px 14px;border-radius:8px;font-family:monospace;font-size:15px;font-weight:700;min-width:60px;text-align:center;border:1.5px solid rgba(255,255,255,.2);cursor:pointer;transition:all .2s;position:relative}
        html:not([dark]) .help-item kbd{background:rgba(0,0,0,.06);color:#222;border:1.5px solid rgba(0,0,0,.08);}
        .help-item kbd:hover{background:rgba(255,255,255,.22);transform:scale(1.07)}
        .help-item kbd:after{content:"✎";position:absolute;top:-7px;right:-7px;font-size:11px;opacity:0;transition:opacity .2s}
        .help-item kbd:hover:after{opacity:.7}
        .help-item kbd.non-editable{cursor:default;opacity:.7}
        .help-item kbd.non-editable:hover{background:rgba(255,255,255,.15);transform:none}
        .help-item kbd.non-editable:after{display:none}
        .help-item span{font-size:15px;color:rgba(255,255,255,.92)}
        html:not([dark]) .help-item span{color:#222;}
        .help-footer{padding:16px 24px 20px 24px;border-top:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05);text-align:center}
        .reset-all-shortcuts{background:rgba(255,255,255,.15);color:inherit;border:1.5px solid rgba(255,255,255,.2);padding:7px 18px;border-radius:8px;font-size:13px;cursor:pointer;transition:all .2s}
        .reset-all-shortcuts:hover{border:1.5px solid rgba(255,69,69,.3);background:rgba(255,69,69,.3)}
        .shortcut-edit-dialog{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:10002;backdrop-filter:blur(5px)}
        .shortcut-edit-content{background:rgba(255,255,255,.15);color:inherit;padding:28px 32px;border-radius:18px;backdrop-filter:blur(15px) saturate(180%);-webkit-backdrop-filter:blur(15px) saturate(180%);border:1.5px solid rgba(255,255,255,.2);text-align:center;min-width:320px;box-shadow:0 4px 32px rgba(0,0,0,.3)}
        html:not([dark]) .shortcut-edit-content{background:rgba(255,255,255,.98);color:#222;border:1.5px solid rgba(0,0,0,.08);}
        .shortcut-edit-content h4{margin:0 0 14px;font-size:17px;font-weight:700}
        .shortcut-edit-content p{margin:0 0 18px;font-size:15px;color:rgba(255,255,255,.85)}
        html:not([dark]) .shortcut-edit-content p{color:#222;}
        .current-shortcut{margin:18px 0;font-size:15px}
        .current-shortcut kbd{background:rgba(255,255,255,.15);padding:5px 12px;border-radius:6px;font-family:monospace;border:1.5px solid rgba(255,255,255,.2)}
        html:not([dark]) .current-shortcut kbd{background:rgba(0,0,0,.06);color:#222;border:1.5px solid rgba(0,0,0,.08);}
        .shortcut-cancel{padding:7px 18px;border-radius:8px;border:1.5px solid rgba(255,255,255,.2);background:rgba(255,255,255,.15);color:inherit;font-size:13px;cursor:pointer;transition:all .2s}
        .shortcut-cancel:hover{background:rgba(255,255,255,.22)}
        @media(max-width:480px){
          .shorts-help-panel{width:98vw;max-height:85vh}
          .help-header{padding:16px 10px 8px 10px}
          .help-content{padding:12px 10px}
          .help-item{gap:10px}
          .help-item kbd{min-width:44px;font-size:13px;padding:5px 7px}
          .shortcut-edit-content{margin:20px;min-width:auto}
        }
        #shorts-keyboard-feedback{background:var(--shorts-feedback-bg,rgba(255,255,255,.15));color:var(--shorts-feedback-color,#fff);border:1.5px solid var(--shorts-feedback-border,rgba(255,255,255,.2));border-radius:20px;box-shadow:0 8px 32px 0 rgba(31,38,135,.37);backdrop-filter:blur(12px) saturate(180%);-webkit-backdrop-filter:blur(12px) saturate(180%);}
        html:not([dark]) #shorts-keyboard-feedback{background:var(--shorts-feedback-bg,rgba(255,255,255,.95));color:var(--shorts-feedback-color,#222);border:1.5px solid var(--shorts-feedback-border,rgba(0,0,0,.08));}
      `;
      document.head.appendChild(style);
    };

    // Main keyboard handler
    const handleKeydown = (e) => {
      if (!config.enabled || !utils.isInShortsPage() || utils.isInputFocused() || state.editingShortcut) return;

      let key = e.key;
      if (e.code === 'NumpadAdd') key = '+';
      else if (e.code === 'NumpadSubtract') key = '-';

      const action = Object.keys(config.shortcuts).find(k => config.shortcuts[k].key === key);
      if (action && actions[action]) {
        e.preventDefault();
        e.stopPropagation();
        actions[action]();
      }
    };

    // Initialize
    const init = () => {
      utils.loadSettings();
      addStyles();

      document.addEventListener('keydown', handleKeydown, true);

      document.addEventListener('click', (e) => {
        if (state.helpVisible && !e.target.closest('#shorts-keyboard-help')) {
          helpPanel.hide();
        }
      });

      document.addEventListener('keydown', (e) => {
        if (e.key === 'Escape' && state.helpVisible) {
          e.preventDefault();
          helpPanel.hide();
        }
      });
    };

    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', init);
    } else {
      init();
    }

    if (utils.isInShortsPage() && !localStorage.getItem('shorts_keyboard_help_shown')) {
      setTimeout(() => {
        feedback.show('Press ? for shortcuts');
        localStorage.setItem('shorts_keyboard_help_shown', 'true');
      }, 2000);
    }
  })();

  // YouTube Picture-in-Picture settings
  (function () {
    "use strict";

    // PiP settings with defaults
    const pipSettings = {
      enabled: true,
      shortcut: { key: "P", shiftKey: true, altKey: false, ctrlKey: false },
      storageKey: "youtube_pip_settings"
    };

    // Load/save settings
    const loadSettings = () => {
      try {
        const saved = localStorage.getItem(pipSettings.storageKey);
        if (saved) Object.assign(pipSettings, JSON.parse(saved));
      } catch (e) {
        console.error("Error loading PiP settings:", e);
      }
    };

    const saveSettings = () => {
      try {
        localStorage.setItem(pipSettings.storageKey, JSON.stringify(pipSettings));
      } catch (e) {
        console.error("Error saving PiP settings:", e);
      }
    };

    // Toggle Picture-in-Picture
    const togglePictureInPicture = (video) => {
      if (!pipSettings.enabled || !video) return;

      if (document.pictureInPictureElement) {
        document.exitPictureInPicture()
          .then(() => localStorage.removeItem("pipActive"))
          .catch(console.error);
      } else {
        video.requestPictureInPicture()
          .then(() => localStorage.setItem("pipActive", "true"))
          .catch(console.error);
      }
    };

    // Add PiP settings to Advanced section of modal
    const addPipSettingsToModal = () => {
      // Wait for the advanced section to be available
      const advancedSection = document.querySelector('.ytp-plus-settings-section[data-section="advanced"]');
      if (!advancedSection || document.querySelector('.pip-settings-item')) return;

      // Add styles if they don't exist
      if (!document.getElementById('pip-styles')) {
        const style = document.createElement('style');
        style.id = 'pip-styles';
        style.textContent = `
          .pip-shortcut-editor { display: flex; align-items: center; gap: 8px; }
          .pip-shortcut-editor select, #pip-key {background: rgba(34, 34, 34, var(--yt-header-bg-opacity)); color: var(--yt-spec-text-primary); border: 1px solid var(--yt-spec-10-percent-layer); border-radius: var(--yt-radius-sm); padding: 4px;}
        `;
        document.head.appendChild(style);
      }

      // Enable/disable toggle
      const enableItem = document.createElement('div');
      enableItem.className = 'ytp-plus-settings-item pip-settings-item';
      enableItem.innerHTML = `
        <div>
          <label class="ytp-plus-settings-item-label">Picture-in-Picture</label>
          <div class="ytp-plus-settings-item-description">Add Picture-in-Picture functionality with keyboard shortcut</div>
        </div>
        <input type="checkbox" class="ytp-plus-settings-checkbox" data-setting="enablePiP" id="pip-enable-checkbox" ${pipSettings.enabled ? 'checked' : ''}>
      `;
      advancedSection.appendChild(enableItem);

      // Shortcut settings
      const shortcutItem = document.createElement('div');
      shortcutItem.className = 'ytp-plus-settings-item pip-shortcut-item';
      shortcutItem.style.display = pipSettings.enabled ? 'flex' : 'none';

      const { ctrlKey, altKey, shiftKey } = pipSettings.shortcut;
      const modifierValue = ctrlKey && altKey && shiftKey ? 'ctrl+alt+shift' :
        ctrlKey && altKey ? 'ctrl+alt' :
          ctrlKey && shiftKey ? 'ctrl+shift' :
            altKey && shiftKey ? 'alt+shift' :
              ctrlKey ? 'ctrl' : altKey ? 'alt' : shiftKey ? 'shift' : 'none';

      shortcutItem.innerHTML = `
        <div>
          <label class="ytp-plus-settings-item-label">PiP Keyboard Shortcut</label>
          <div class="ytp-plus-settings-item-description">Customize keyboard combination to toggle PiP mode</div>
        </div>
        <div class="pip-shortcut-editor">
          <select id="pip-modifier-combo">
            ${['none', 'ctrl', 'alt', 'shift', 'ctrl+alt', 'ctrl+shift', 'alt+shift', 'ctrl+alt+shift']
          .map(v => `<option value="${v}" ${v === modifierValue ? 'selected' : ''}>${v === 'none' ? 'None' : v.replace(/\+/g, '+').split('+').map(k => k.charAt(0).toUpperCase() + k.slice(1)).join('+')}</option>`)
          .join('')}
          </select>
          <span>+</span>
          <input type="text" id="pip-key" value="${pipSettings.shortcut.key}" maxlength="1" style="width: 30px; text-align: center;">
        </div>
      `;
      advancedSection.appendChild(shortcutItem);

      // Event listeners
      document.getElementById('pip-enable-checkbox').addEventListener('change', (e) => {
        pipSettings.enabled = e.target.checked;
        shortcutItem.style.display = pipSettings.enabled ? 'flex' : 'none';
        saveSettings();
      });

      document.getElementById('pip-modifier-combo').addEventListener('change', (e) => {
        const value = e.target.value;
        pipSettings.shortcut.ctrlKey = value.includes('ctrl');
        pipSettings.shortcut.altKey = value.includes('alt');
        pipSettings.shortcut.shiftKey = value.includes('shift');
        saveSettings();
      });

      document.getElementById('pip-key').addEventListener('input', (e) => {
        if (e.target.value) {
          pipSettings.shortcut.key = e.target.value.toUpperCase();
          saveSettings();
        }
      });

      document.getElementById('pip-key').addEventListener('keydown', (e) => e.stopPropagation());
    };

    // Initialize
    loadSettings();

    // Event listeners
    document.addEventListener("keydown", (e) => {
      if (!pipSettings.enabled) return;
      const { shiftKey, altKey, ctrlKey, key } = pipSettings.shortcut;
      if (e.shiftKey === shiftKey && e.altKey === altKey &&
        e.ctrlKey === ctrlKey && e.key.toUpperCase() === key) {
        togglePictureInPicture(document.querySelector("video"));
        e.preventDefault();
      }
    });

    window.addEventListener("storage", (e) => {
      if (e.key === "pipActive" && e.newValue === null && document.pictureInPictureElement) {
        document.exitPictureInPicture().catch(console.error);
      } else if (e.key === pipSettings.storageKey) {
        loadSettings();
      }
    });

    window.addEventListener("load", () => {
      if (pipSettings.enabled && localStorage.getItem("pipActive") === "true" && !document.pictureInPictureElement) {
        const video = document.querySelector("video");
        if (video) togglePictureInPicture(video);
      }
    });

    // DOM observers for the settings modal
    const observer = new MutationObserver((mutations) => {
      for (const mutation of mutations) {
        for (const node of mutation.addedNodes) {
          if (node.classList?.contains('ytp-plus-settings-modal')) {
            setTimeout(addPipSettingsToModal, 100);
          }
        }
      }

      // Check for section changes
      if (document.querySelector('.ytp-plus-settings-nav-item[data-section="advanced"].active')) {
        // If advanced section is active and our settings aren't there yet, add them
        if (!document.querySelector('.pip-settings-item')) {
          setTimeout(addPipSettingsToModal, 50);
        }
      }
    });

    observer.observe(document.body, { childList: true, subtree: true });

    // Also observe for changes in the tab selection
    document.addEventListener('click', (e) => {
      if (e.target.classList && e.target.classList.contains('ytp-plus-settings-nav-item')) {
        if (e.target.dataset.section === 'advanced') {
          setTimeout(addPipSettingsToModal, 50);
        }
      }
    }, true);
  })();

  // YouTube Timecode Panel
  (function () {
    "use strict";

    // Early exit for embeds to prevent duplicate panels
    if (window.location.hostname !== 'www.youtube.com' ||
      window.frameElement ||
      document.querySelector('ytd-app') === null) {
      return;
    }

    // Prevent multiple initializations
    if (window._timecodeModuleInitialized) return;
    window._timecodeModuleInitialized = true;

    // Configuration
    const config = {
      enabled: true,
      autoDetect: true,
      shortcut: { key: "T", shiftKey: true, altKey: false, ctrlKey: false },
      storageKey: 'youtube_timecode_settings',
      autoSave: true,
      autoTrackPlayback: true,
      export: true
    };

    // State management
    const state = {
      timecodes: new Map(),
      dom: {},
      activeIndex: null,
      trackingId: 0,
      dragging: false,
      editingIndex: null
    };

    // Utilities
    const loadSettings = () => {
      try {
        const saved = localStorage.getItem(config.storageKey);
        if (saved) Object.assign(config, JSON.parse(saved));
      } catch (e) { }
    };

    const saveSettings = () => {
      try {
        localStorage.setItem(config.storageKey, JSON.stringify(config));
      } catch (e) { }
    };

    const showNotification = (message, duration = 2000) => {
      let notification = document.querySelector('.youtube-enhancer-notification');
      if (!notification) {
        notification = document.createElement('div');
        notification.className = 'youtube-enhancer-notification';
        document.body.appendChild(notification);
      }
      notification.textContent = message;
      notification.style.opacity = '1';
      setTimeout(() => notification.style.opacity = '0', duration);
    };

    // Time utilities
    const formatTime = seconds => {
      if (isNaN(seconds)) return "00:00";
      seconds = Math.round(seconds);
      const h = Math.floor(seconds / 3600);
      const m = Math.floor((seconds % 3600) / 60);
      const s = seconds % 60;
      return h > 0
        ? `${h}:${m.toString().padStart(2, '0')}:${s.toString().padStart(2, '0')}`
        : `${m.toString().padStart(2, '0')}:${s.toString().padStart(2, '0')}`;
    };

    const parseTime = timeStr => {
      if (!timeStr) return null;
      const str = timeStr.trim();

      // Handle HH:MM:SS format
      let match = str.match(/^(\d+):(\d{1,2}):(\d{2})$/);
      if (match) {
        const [, h, m, s] = match.map(Number);
        return (m < 60 && s < 60) ? h * 3600 + m * 60 + s : null;
      }

      // Handle MM:SS format
      match = str.match(/^(\d{1,2}):(\d{2})$/);
      if (match) {
        const [, m, s] = match.map(Number);
        return (m < 60 && s < 60) ? m * 60 + s : null;
      }

      return null;
    };

    // Timecode extraction
    const extractTimecodes = text => {
      if (!text) return [];

      const timecodes = [];
      const seen = new Set();
      const patterns = [
        /(\d{1,2}:\d{2}(?::\d{2})?)\s*[-–—]\s*(.+?)$/gm,
        /^(\d{1,2}:\d{2}(?::\d{2})?)\s+(.+?)$/gm,
        /(\d{1,2}:\d{2}(?::\d{2})?)\s*[-–—:]\s*([^\n\r]{1,100}?)(?=\s*\d{1,2}:\d{2}|\s*$)/g
      ];

      for (const pattern of patterns) {
        let match;
        while ((match = pattern.exec(text)) !== null) {
          const time = parseTime(match[1]);
          if (time !== null && !seen.has(time)) {
            seen.add(time);
            const label = (match[2] || formatTime(time)).trim().replace(/^\d+[\.\)]\s*/, '').substring(0, 100);
            if (label) timecodes.push({ time, label, originalText: match[1] });
          }
        }
      }

      return timecodes.sort((a, b) => a.time - b.time);
    };

    // Detection
    const detectTimecodes = () => {
      if (!config.enabled || !config.autoDetect) return [];

      const videoId = new URLSearchParams(window.location.search).get("v");
      if (!videoId) return [];

      const cacheKey = `detect_${videoId}`;
      if (state.timecodes.has(cacheKey)) return state.timecodes.get(cacheKey);

      const uniqueMap = new Map();

      // Extract from description
      const selectors = [
        "#description-inline-expander yt-attributed-string",
        "#tab-info ytd-expandable-video-description-body-renderer yt-attributed-string",
        "#description.ytd-watch-metadata yt-attributed-string"
      ];

      for (const selector of selectors) {
        const el = document.querySelector(selector);
        if (el?.textContent) {
          extractTimecodes(el.textContent).forEach(tc => {
            if (tc.time >= 0 && tc.label?.trim()) {
              uniqueMap.set(tc.time.toString(), tc);
            }
          });
          if (uniqueMap.size > 0) break;
        }
      }

      // Get native chapters
      getYouTubeChapters().forEach(chapter => {
        if (chapter.time >= 0 && chapter.label?.trim()) {
          uniqueMap.set(chapter.time.toString(), chapter);
        }
      });

      const result = Array.from(uniqueMap.values()).sort((a, b) => a.time - b.time);
      state.timecodes.set(cacheKey, result);

      if (result.length > 0) {
        updateTimecodePanel(result);
        if (config.autoSave) saveTimecodesToStorage(result);
      }

      return result;
    };

    const getYouTubeChapters = () => {
      const items = document.querySelectorAll('ytd-macro-markers-list-item-renderer, ytd-chapter-renderer');
      const chapters = new Map();

      items.forEach(item => {
        const timeText = item.querySelector('.time-info, .timestamp')?.textContent;
        const titleText = item.querySelector('.marker-title, .chapter-title')?.textContent;

        if (timeText) {
          const time = parseTime(timeText.trim());
          if (time !== null) {
            chapters.set(time.toString(), {
              time,
              label: titleText?.trim() || formatTime(time),
              isChapter: true
            });
          }
        }
      });

      return Array.from(chapters.values()).sort((a, b) => a.time - b.time);
    };

    // Settings panel
    const addTimecodePanelSettings = () => {
      const advancedSection = document.querySelector('.ytp-plus-settings-section[data-section="advanced"]');
      if (!advancedSection || document.querySelector('.timecode-settings-item')) return;

      const { ctrlKey, altKey, shiftKey } = config.shortcut;
      const modifierValue = [
        ctrlKey && altKey && shiftKey && 'ctrl+alt+shift',
        ctrlKey && altKey && 'ctrl+alt',
        ctrlKey && shiftKey && 'ctrl+shift',
        altKey && shiftKey && 'alt+shift',
        ctrlKey && 'ctrl',
        altKey && 'alt',
        shiftKey && 'shift'
      ].find(Boolean) || 'none';

      const enableDiv = document.createElement('div');
      enableDiv.className = 'ytp-plus-settings-item timecode-settings-item';
      enableDiv.innerHTML = `
        <div>
          <label class="ytp-plus-settings-item-label">Timecode Panel</label>
          <div class="ytp-plus-settings-item-description">Enable video timecode/chapter panel with quick navigation</div>
        </div>
        <input type="checkbox" class="ytp-plus-settings-checkbox" data-setting="enabled" ${config.enabled ? 'checked' : ''}>
      `;

      const shortcutDiv = document.createElement('div');
      shortcutDiv.className = 'ytp-plus-settings-item timecode-settings-item timecode-shortcut-item';
      shortcutDiv.style.display = config.enabled ? 'flex' : 'none';
      shortcutDiv.innerHTML = `
        <div>
          <label class="ytp-plus-settings-item-label">Keyboard Shortcut</label>
          <div class="ytp-plus-settings-item-description">Customize keyboard combination to toggle Timecode Panel</div>
        </div>
        <div style="display: flex; align-items: center; gap: 8px;">
          <select id="timecode-modifier-combo" style="background: rgba(34, 34, 34, 0.6); color: white; border: 1px solid rgba(255,255,255,0.1); border-radius: 4px; padding: 4px;">
            ${['none', 'ctrl', 'alt', 'shift', 'ctrl+alt', 'ctrl+shift', 'alt+shift', 'ctrl+alt+shift']
          .map(v => `<option value="${v}" ${v === modifierValue ? 'selected' : ''}>${v === 'none' ? 'None' : v.split('+').map(k => k.charAt(0).toUpperCase() + k.slice(1)).join('+')}</option>`)
          .join('')}
          </select>
          <span>+</span>
          <input type="text" id="timecode-key" value="${config.shortcut.key}" maxlength="1" style="width: 30px; text-align: center; background: rgba(34, 34, 34, 0.6); color: white; border: 1px solid rgba(255,255,255,0.1); border-radius: 4px; padding: 4px;">
        </div>
      `;

      advancedSection.append(enableDiv, shortcutDiv);

      // Event listeners
      advancedSection.addEventListener('change', e => {
        if (e.target.matches('.ytp-plus-settings-checkbox[data-setting="enabled"]')) {
          config.enabled = e.target.checked;
          shortcutDiv.style.display = config.enabled ? 'flex' : 'none';
          toggleTimecodePanel(config.enabled);
          saveSettings();
        }
      });

      document.getElementById('timecode-modifier-combo')?.addEventListener('change', e => {
        const value = e.target.value;
        config.shortcut.ctrlKey = value.includes('ctrl');
        config.shortcut.altKey = value.includes('alt');
        config.shortcut.shiftKey = value.includes('shift');
        saveSettings();
      });

      document.getElementById('timecode-key')?.addEventListener('input', e => {
        if (e.target.value) {
          config.shortcut.key = e.target.value.toUpperCase();
          saveSettings();
        }
      });
    };

    // CSS
    const insertTimecodeStyles = () => {
      if (document.getElementById('timecode-panel-styles')) return;
      const style = document.createElement('style');
      style.id = 'timecode-panel-styles';
      style.textContent = `
        #timecode-panel{position:fixed;right:20px;top:80px;background:rgba(34,34,34,.9);border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.4);width:250px;max-height:70vh;z-index:9999;color:#fff;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);transition:transform .3s,opacity .3s;overflow:hidden;display:flex;flex-direction:column}
        #timecode-panel.hidden{transform:translateX(270px);opacity:0;pointer-events:none}
        #timecode-panel.auto-tracking{border-color:rgba(255,0,0,.5)}
        #timecode-header{display:flex;justify-content:space-between;align-items:center;padding:12px;border-bottom:1px solid rgba(255,255,255,.1);background:rgba(0,0,0,.3);cursor:move}
        #timecode-title{font-weight:500;margin:0;font-size:14px;user-select:none;display:flex;align-items:center;gap:8px}
        #timecode-tracking-indicator{width:8px;height:8px;background:red;border-radius:50%;opacity:0;transition:opacity .3s}
        #timecode-panel.auto-tracking #timecode-tracking-indicator{opacity:1}
        #timecode-current-time{font-family:monospace;font-size:12px;padding:2px 6px;background:rgba(255,0,0,.3);border-radius:3px;margin-left:auto}
        #timecode-close{background:0 0;border:none;color:rgba(255,255,255,.7);cursor:pointer;width:24px;height:24px;padding:0;transition:color .2s;display:flex;align-items:center;justify-content:center}
        #timecode-close:hover{color:#fff}
        #timecode-list{overflow-y:auto;padding:8px 0;max-height:calc(70vh - 80px);scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.3) transparent}
        #timecode-list::-webkit-scrollbar{width:6px}
        #timecode-list::-webkit-scrollbar-thumb{background:rgba(255,255,255,.3);border-radius:3px}
        .timecode-item{padding:8px 12px;display:flex;align-items:center;cursor:pointer;transition:background-color .2s;border-left:3px solid transparent;position:relative}
        .timecode-item:hover{background:rgba(255,255,255,.1)}
        .timecode-item:hover .timecode-actions{opacity:1}
        .timecode-item.active{background:rgba(255,0,0,.25);border-left-color:red}
        .timecode-item.active.pulse{animation:pulse .8s ease-out}
        .timecode-item.editing{background:rgba(255,255,0,.15);border-left-color:#ffaa00}
        .timecode-item.editing .timecode-actions{opacity:1}
        @keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.02)}100%{transform:scale(1)}}
        .timecode-time{font-family:monospace;margin-right:10px;color:rgba(255,255,255,.8);font-size:13px;min-width:45px}
        .timecode-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px;flex:1}
        .timecode-item.has-chapter .timecode-time{color:#ff4444}
        .timecode-progress{width:0;height:2px;background:#ff4444;position:absolute;bottom:0;left:0;transition:width .3s;opacity:.8}
        .timecode-actions{position:absolute;right:8px;top:50%;transform:translateY(-50%);display:flex;gap:4px;opacity:0;transition:opacity .2s;background:rgba(0,0,0,.8);border-radius:4px;padding:2px}
        .timecode-action{background:none;border:none;color:rgba(255,255,255,.8);cursor:pointer;padding:4px;font-size:12px;border-radius:2px;transition:color .2s,background-color .2s}
        .timecode-action:hover{color:#fff;background:rgba(255,255,255,.2)}
        .timecode-action.edit:hover{color:#ffaa00}
        .timecode-action.delete:hover{color:#ff4444}
        #timecode-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;text-align:center;color:rgba(255,255,255,.7);font-size:13px}
        #timecode-form{padding:10px;border-top:1px solid rgba(255,255,255,.1);display:none}
        #timecode-form.visible{display:block}
        #timecode-form input{width:100%;margin-bottom:8px;padding:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:4px;color:#fff;font-size:13px}
        #timecode-form input::placeholder{color:rgba(255,255,255,.6)}
        #timecode-form-buttons{display:flex;gap:8px;justify-content:flex-end}
        #timecode-form-buttons button{padding:6px 12px;border:none;border-radius:4px;cursor:pointer;font-size:12px;transition:background-color .2s}
        #timecode-form-cancel{background:rgba(255,255,255,.2);color:#fff}
        #timecode-form-cancel:hover{background:rgba(255,255,255,.3)}
        #timecode-form-save{background:#ff4444;color:#fff}
        #timecode-form-save:hover{background:#ff6666}
        #timecode-actions{padding:8px;border-top:1px solid rgba(255,255,255,.1);display:flex;gap:8px;background:rgba(0,0,0,.2)}
        #timecode-actions button{padding:6px 10px;border:none;border-radius:4px;cursor:pointer;font-size:12px;transition:background-color .2s;background:rgba(255,255,255,.2);color:#fff}
        #timecode-actions button:hover{background:rgba(255,255,255,.3)}
        #timecode-track-toggle.active{background:#ff4444!important}
      `;
      document.head.appendChild(style);
    };

    // Panel creation
    const createTimecodePanel = () => {
      if (state.dom.panel) return state.dom.panel;

      // Remove any existing panels (for redundancy)
      document.querySelectorAll('#timecode-panel').forEach(p => p.remove());

      const panel = document.createElement('div');
      panel.id = 'timecode-panel';
      panel.className = config.enabled ? '' : 'hidden';
      if (config.autoTrackPlayback) panel.classList.add('auto-tracking');

      panel.innerHTML = `
        <div id="timecode-header">
          <h3 id="timecode-title">
            <div id="timecode-tracking-indicator"></div>
            Timecodes
            <span id="timecode-current-time"></span>
          </h3>
          <button id="timecode-close">×</button>
        </div>
        <div id="timecode-list"></div>
        <div id="timecode-empty">
          <div>No timecodes found</div>
          <div style="margin-top:5px;font-size:12px">Click + to add current time</div>
        </div>
        <div id="timecode-form">
          <input type="text" id="timecode-form-time" placeholder="Time (e.g., 1:30)">
          <input type="text" id="timecode-form-label" placeholder="Label (optional)">
          <div id="timecode-form-buttons">
            <button type="button" id="timecode-form-cancel">Cancel</button>
            <button type="button" id="timecode-form-save" class="save">Save</button>
          </div>
        </div>
        <div id="timecode-actions">
          <button id="timecode-add-btn">+ Add</button>
          <button id="timecode-export-btn" ${config.export ? '' : 'style="display:none"'}>Export</button>
          <button id="timecode-track-toggle" class="${config.autoTrackPlayback ? 'active' : ''}">${config.autoTrackPlayback ? 'Tracking' : 'Track'}</button>
        </div>
      `;

      // Cache DOM elements
      state.dom = {
        panel,
        list: panel.querySelector('#timecode-list'),
        empty: panel.querySelector('#timecode-empty'),
        form: panel.querySelector('#timecode-form'),
        timeInput: panel.querySelector('#timecode-form-time'),
        labelInput: panel.querySelector('#timecode-form-label'),
        currentTime: panel.querySelector('#timecode-current-time'),
        trackToggle: panel.querySelector('#timecode-track-toggle')
      };

      // Event delegation
      panel.addEventListener('click', handlePanelClick);
      makeDraggable(panel);

      document.body.appendChild(panel);
      return panel;
    };

    // Event handling
    const handlePanelClick = e => {
      const { target } = e;
      const item = target.closest('.timecode-item');

      if (target.id === 'timecode-close') {
        toggleTimecodePanel(false);
      } else if (target.id === 'timecode-add-btn') {
        const video = document.querySelector('video');
        if (video) showTimecodeForm(video.currentTime);
      } else if (target.id === 'timecode-track-toggle') {
        config.autoTrackPlayback = !config.autoTrackPlayback;
        target.textContent = config.autoTrackPlayback ? 'Tracking' : 'Track';
        target.classList.toggle('active', config.autoTrackPlayback);
        state.dom.panel.classList.toggle('auto-tracking', config.autoTrackPlayback);
        saveSettings();
        if (config.autoTrackPlayback) startTracking();
      } else if (target.id === 'timecode-export-btn') {
        exportTimecodes();
      } else if (target.id === 'timecode-form-cancel') {
        hideTimecodeForm();
      } else if (target.id === 'timecode-form-save') {
        saveTimecodeForm();
      } else if (target.classList.contains('timecode-action')) {
        e.stopPropagation();
        const action = target.dataset.action;
        const index = parseInt(target.closest('.timecode-item').dataset.index);

        if (action === 'edit') {
          editTimecode(index);
        } else if (action === 'delete') {
          deleteTimecode(index);
        }
      } else if (item && !target.closest('.timecode-actions')) {
        const time = parseFloat(item.dataset.time);
        const video = document.querySelector('video');
        if (video && !isNaN(time)) {
          video.currentTime = time;
          if (video.paused) video.play();
          updateActiveItem(item);
        }
      }
    };

    // Edit timecode
    const editTimecode = (index) => {
      const timecodes = getCurrentTimecodes();
      if (index < 0 || index >= timecodes.length) return;

      const timecode = timecodes[index];
      state.editingIndex = index;

      // Update item appearance
      const item = state.dom.list.querySelector(`.timecode-item[data-index="${index}"]`);
      if (item) {
        item.classList.add('editing');
        // Hide other editing items
        state.dom.list.querySelectorAll('.timecode-item.editing').forEach(el => {
          if (el !== item) el.classList.remove('editing');
        });
      }

      showTimecodeForm(timecode.time, timecode.label);
    };

    // Delete timecode
    const deleteTimecode = (index) => {
      const timecodes = getCurrentTimecodes();
      if (index < 0 || index >= timecodes.length) return;

      const timecode = timecodes[index];

      // Don't allow deletion of native YouTube chapters
      if (timecode.isChapter && !timecode.isUserAdded) {
        showNotification("Cannot delete YouTube chapters");
        return;
      }

      // Confirm deletion
      if (!confirm(`Delete timecode "${timecode.label}"?`)) return;

      timecodes.splice(index, 1);
      updateTimecodePanel(timecodes);
      saveTimecodesToStorage(timecodes);
      showNotification("Timecode deleted");
    };

    // Form handling
    const showTimecodeForm = (currentTime, existingLabel = '') => {
      const { form, timeInput, labelInput } = state.dom;
      form.classList.add('visible');
      timeInput.value = formatTime(currentTime);
      labelInput.value = existingLabel;
      requestAnimationFrame(() => labelInput.focus());
    };

    const hideTimecodeForm = () => {
      state.dom.form.classList.remove('visible');
      state.editingIndex = null;
      // Remove editing class from all items
      state.dom.list?.querySelectorAll('.timecode-item.editing').forEach(el => {
        el.classList.remove('editing');
      });
    };

    const saveTimecodeForm = () => {
      const { timeInput, labelInput } = state.dom;
      const timeValue = timeInput.value.trim();
      const labelValue = labelInput.value.trim();

      const time = parseTime(timeValue);
      if (time === null) {
        showNotification("Invalid time format");
        return;
      }

      const timecodes = getCurrentTimecodes();
      const newTimecode = { time, label: labelValue || formatTime(time), isUserAdded: true };

      if (state.editingIndex !== null) {
        // Editing existing timecode
        const oldTimecode = timecodes[state.editingIndex];
        if (oldTimecode.isChapter && !oldTimecode.isUserAdded) {
          showNotification("Cannot edit YouTube chapters");
          hideTimecodeForm();
          return;
        }

        timecodes[state.editingIndex] = { ...oldTimecode, ...newTimecode };
        showNotification("Timecode updated");
      } else {
        // Adding new timecode
        timecodes.push(newTimecode);
        showNotification("Timecode added");
      }

      const sorted = timecodes.sort((a, b) => a.time - b.time);
      updateTimecodePanel(sorted);
      saveTimecodesToStorage(sorted);
      hideTimecodeForm();
    };

    // Export
    const exportTimecodes = () => {
      const timecodes = getCurrentTimecodes();
      if (!timecodes.length) {
        showNotification("No timecodes to export");
        return;
      }

      const exportBtn = state.dom.panel?.querySelector('#timecode-export-btn');
      if (exportBtn) {
        exportBtn.textContent = "Copied!";
        exportBtn.style.backgroundColor = 'rgba(0,220,0,0.8)';
        setTimeout(() => {
          exportBtn.textContent = "Export";
          exportBtn.style.backgroundColor = '';
        }, 2000);
      }

      const videoTitle = document.title.replace(/\s-\sYouTube$/, "");
      let content = `${videoTitle}\n\nTimecodes:\n`;
      timecodes.forEach(tc => content += `${formatTime(tc.time)} - ${tc.label}\n`);

      if (navigator.clipboard?.writeText) {
        navigator.clipboard.writeText(content).then(() => {
          showNotification("Timecodes copied to clipboard");
        });
      }
    };

    // Panel updates
    const updateTimecodePanel = timecodes => {
      const { list, empty } = state.dom;
      if (!list || !empty) return;

      const isEmpty = !timecodes.length;
      empty.style.display = isEmpty ? 'flex' : 'none';
      list.style.display = isEmpty ? 'none' : 'block';

      if (isEmpty) return;

      list.innerHTML = timecodes.map((tc, i) => {
        const timeStr = formatTime(tc.time);
        const label = (tc.label?.trim() || timeStr).replace(/[<>&"']/g, c => ({ '<': '&lt;', '>': '&gt;', '&': '&amp;', '"': '&quot;', "'": '&#39;' })[c]);
        const isEditable = !tc.isChapter || tc.isUserAdded;

        return `
          <div class="timecode-item ${tc.isChapter ? 'has-chapter' : ''}" data-time="${tc.time}" data-index="${i}">
            <div class="timecode-time">${timeStr}</div>
            <div class="timecode-label" title="${label}">${label}</div>
            <div class="timecode-progress"></div>
            ${isEditable ? `
              <div class="timecode-actions">
                <button class="timecode-action edit" data-action="edit" title="Edit">✎</button>
                <button class="timecode-action delete" data-action="delete" title="Delete">✕</button>
              </div>
            ` : ''}
          </div>
        `;
      }).join('');
    };

    const updateActiveItem = activeItem => {
      const items = state.dom.list?.querySelectorAll('.timecode-item');
      if (!items) return;

      items.forEach(item => item.classList.remove('active', 'pulse'));
      if (activeItem) {
        activeItem.classList.add('active', 'pulse');
        setTimeout(() => activeItem.classList.remove('pulse'), 800);
      }
    };

    // Tracking
    const startTracking = () => {
      if (state.trackingId) return;

      const track = () => {
        try {
          const video = document.querySelector('video');
          const { panel, currentTime, list } = state.dom;

          // Stop tracking if essential elements are missing or panel is hidden
          if (!video || !panel || panel.classList.contains('hidden') || !config.autoTrackPlayback) {
            if (state.trackingId) {
              cancelAnimationFrame(state.trackingId);
              state.trackingId = 0;
            }
            return;
          }

          // Update current time display
          if (currentTime && !isNaN(video.currentTime)) {
            currentTime.textContent = formatTime(video.currentTime);
          }

          // Update active item
          const items = list?.querySelectorAll('.timecode-item');
          if (items?.length) {
            let activeIndex = -1;
            let nextIndex = -1;

            for (let i = 0; i < items.length; i++) {
              const timeData = items[i].dataset.time;
              if (!timeData) continue;

              const time = parseFloat(timeData);
              if (isNaN(time)) continue;

              if (video.currentTime >= time) {
                activeIndex = i;
              } else if (nextIndex === -1) {
                nextIndex = i;
              }
            }

            // Update active state
            if (state.activeIndex !== activeIndex) {
              // Remove previous active state
              if (state.activeIndex !== null && state.activeIndex >= 0 && items[state.activeIndex]) {
                items[state.activeIndex].classList.remove('active');
              }

              // Set new active state
              if (activeIndex >= 0 && items[activeIndex]) {
                items[activeIndex].classList.add('active');
                try {
                  items[activeIndex].scrollIntoView({ behavior: 'smooth', block: 'center' });
                } catch (e) {
                  // Fallback for browsers that don't support smooth scrolling
                  items[activeIndex].scrollIntoView(false);
                }
              }

              state.activeIndex = activeIndex;
            }

            // Update progress bar
            if (activeIndex >= 0 && nextIndex >= 0 && items[activeIndex]) {
              const currentTimeData = items[activeIndex].dataset.time;
              const nextTimeData = items[nextIndex].dataset.time;

              if (currentTimeData && nextTimeData) {
                const current = parseFloat(currentTimeData);
                const next = parseFloat(nextTimeData);

                if (!isNaN(current) && !isNaN(next) && next > current) {
                  const progress = ((video.currentTime - current) / (next - current)) * 100;
                  const progressEl = items[activeIndex].querySelector('.timecode-progress');
                  if (progressEl) {
                    const clampedProgress = Math.min(100, Math.max(0, progress));
                    progressEl.style.width = `${clampedProgress}%`;
                  }
                }
              }
            }
          }

          // Continue tracking if enabled
          if (config.autoTrackPlayback) {
            state.trackingId = requestAnimationFrame(track);
          }
        } catch (error) {
          console.warn('Timecode tracking error:', error);
          // Stop tracking on error to prevent infinite error loops
          if (state.trackingId) {
            cancelAnimationFrame(state.trackingId);
            state.trackingId = 0;
          }
        }
      };

      state.trackingId = requestAnimationFrame(track);
    };

    // Stop tracking function
    const stopTracking = () => {
      if (state.trackingId) {
        cancelAnimationFrame(state.trackingId);
        state.trackingId = 0;
      }
    };

    // Drag functionality
    const makeDraggable = panel => {
      const header = panel.querySelector('#timecode-header');
      if (!header) return;

      let startX, startY, startLeft, startTop;

      header.addEventListener('mousedown', e => {
        if (e.button !== 0) return;
        state.dragging = true;
        startX = e.clientX;
        startY = e.clientY;

        // Set initial position if not already set
        if (panel.style.left === '' && panel.style.top === '') {
          panel.style.left = '20px';
          panel.style.top = '80px';
        }

        startLeft = parseInt(panel.style.left) || 0;
        startTop = parseInt(panel.style.top) || 0;

        const move = e => {
          if (!state.dragging) return;
          const x = Math.max(0, Math.min(window.innerWidth - panel.offsetWidth, startLeft + e.clientX - startX));
          const y = Math.max(0, Math.min(window.innerHeight - panel.offsetHeight, startTop + e.clientY - startY));
          panel.style.left = x + 'px';
          panel.style.top = y + 'px';
        };

        const stop = () => {
          state.dragging = false;
          document.removeEventListener('mousemove', move);
          document.removeEventListener('mouseup', stop);
        };

        document.addEventListener('mousemove', move);
        document.addEventListener('mouseup', stop);
      });
    };

    // Storage
    const saveTimecodesToStorage = timecodes => {
      const videoId = new URLSearchParams(window.location.search).get("v");
      if (!videoId) return;

      try {
        const minimal = timecodes.map(tc => ({
          t: tc.time,
          l: tc.label?.trim() || formatTime(tc.time),
          c: tc.isChapter || false,
          u: tc.isUserAdded || false
        }));
        localStorage.setItem(`yt_tc_${videoId}`, JSON.stringify(minimal));
      } catch (e) { }
    };

    const loadTimecodesFromStorage = () => {
      const videoId = new URLSearchParams(window.location.search).get("v");
      if (!videoId) return null;

      try {
        const data = localStorage.getItem(`yt_tc_${videoId}`);
        return data ? JSON.parse(data).map(tc => ({
          time: tc.t,
          label: tc.l,
          isChapter: tc.c,
          isUserAdded: tc.u || false
        })).sort((a, b) => a.time - b.time) : null;
      } catch (e) {
        return null;
      }
    };

    const getCurrentTimecodes = () => {
      const items = state.dom.list?.querySelectorAll('.timecode-item');
      if (!items) return [];

      return Array.from(items).map(item => ({
        time: parseFloat(item.dataset.time),
        label: item.querySelector('.timecode-label')?.textContent || formatTime(parseFloat(item.dataset.time)),
        isChapter: item.classList.contains('has-chapter'),
        isUserAdded: !item.classList.contains('has-chapter') || false
      })).sort((a, b) => a.time - b.time);
    };

    // Toggle panel
    const toggleTimecodePanel = show => {
      // Close any existing panels first (cleanup)
      document.querySelectorAll('#timecode-panel').forEach(panel => {
        if (panel !== state.dom.panel) panel.remove();
      });

      const panel = state.dom.panel || createTimecodePanel();
      if (show === undefined) show = panel.classList.contains('hidden');

      panel.classList.toggle('hidden', !show);

      if (show) {
        const saved = loadTimecodesFromStorage();
        if (saved?.length) {
          updateTimecodePanel(saved);
        } else if (config.autoDetect) {
          detectTimecodes();
        }

        if (config.autoTrackPlayback) startTracking();
      } else if (state.trackingId) {
        cancelAnimationFrame(state.trackingId);
        state.trackingId = 0;
      }
    };

    // Navigation handling
    const setupNavigation = () => {
      let currentVideoId = new URLSearchParams(window.location.search).get("v");

      const handleNavigationChange = () => {
        const newVideoId = new URLSearchParams(window.location.search).get("v");
        if (newVideoId === currentVideoId || window.location.pathname !== '/watch') return;

        currentVideoId = newVideoId;
        state.activeIndex = null;
        state.editingIndex = null;
        state.timecodes.clear();

        if (config.enabled && state.dom.panel && !state.dom.panel.classList.contains('hidden')) {
          const saved = loadTimecodesFromStorage();
          if (saved?.length) {
            updateTimecodePanel(saved);
          } else if (config.autoDetect) {
            setTimeout(detectTimecodes, 500);
          }
          if (config.autoTrackPlayback) startTracking();
        }
      };

      document.addEventListener('yt-navigate-finish', handleNavigationChange);

      // Also watch for URL changes using MutationObserver as a fallback
      const observer = new MutationObserver(() => {
        const newVideoId = new URLSearchParams(window.location.search).get("v");
        if (newVideoId !== currentVideoId) {
          handleNavigationChange();
        }
      });
      observer.observe(document.body, { subtree: true, childList: true });
    };

    // Keyboard shortcuts
    const setupKeyboard = () => {
      document.addEventListener('keydown', e => {
        if (e.target.matches('input, textarea, [contenteditable]')) return;

        const { key, shiftKey, altKey, ctrlKey } = config.shortcut;
        if (e.key.toUpperCase() === key && e.shiftKey === shiftKey &&
          e.altKey === altKey && e.ctrlKey === ctrlKey) {
          e.preventDefault();
          toggleTimecodePanel();
        }
      });
    };

    // Cleanup on unload
    const cleanup = () => {
      stopTracking();
      if (state.dom.panel) {
        state.dom.panel.remove();
        state.dom.panel = null;
      }
    };

    // Initialize
    const init = () => {
      loadSettings();
      insertTimecodeStyles();
      setupKeyboard();
      setupNavigation();

      // Settings modal observer
      const observer = new MutationObserver(mutations => {
        for (const mutation of mutations) {
          for (const node of mutation.addedNodes) {
            if (node.classList?.contains('ytp-plus-settings-modal')) {
              setTimeout(addTimecodePanelSettings, 100);
              return;
            }
          }
        }

        if (document.querySelector('.ytp-plus-settings-section[data-section="advanced"]:not(.hidden)') &&
          !document.querySelector('.timecode-settings-item')) {
          setTimeout(addTimecodePanelSettings, 50);
        }
      });

      observer.observe(document.body, {
        childList: true,
        subtree: true,
        attributes: true,
        attributeFilter: ['class']
      });

      document.addEventListener('click', e => {
        if (e.target.classList?.contains('ytp-plus-settings-nav-item') &&
          e.target.dataset.section === 'advanced') {
          setTimeout(addTimecodePanelSettings, 50);
        }
      }, true);

      if (config.enabled) {
        createTimecodePanel();
        const saved = loadTimecodesFromStorage();
        if (saved?.length) {
          updateTimecodePanel(saved);
        } else if (config.autoDetect) {
          setTimeout(detectTimecodes, 1000);
        }
        if (config.autoTrackPlayback) startTracking();
      }
    };

    // Start on document ready
    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', init);
    } else {
      init();
    }

    // Cleanup on beforeunload
    window.addEventListener('beforeunload', cleanup);
  })();

  // Ad Blocker
  (function () {
    'use strict';

    const AdBlocker = {
      config: {
        skipInterval: 500,
        removeInterval: 1500,
        enableLogging: false,
        maxRetries: 2,
        enabled: true,
        storageKey: 'youtube_adblocker_settings'
      },

      state: {
        isYouTubeShorts: false,
        isYouTubeMusic: location.hostname === 'music.youtube.com',
        lastSkipAttempt: 0,
        retryCount: 0,
        initialized: false
      },

      // Cached DOM queries for better performance
      cache: {
        moviePlayer: null,
        ytdPlayer: null,
        lastCacheTime: 0,
        cacheTimeout: 5000
      },

      // Optimized selectors
      selectors: {
        ads: '#player-ads,.ytp-ad-module,.ad-showing,.ytp-ad-timed-pie-countdown-container,.ytp-ad-survey-questions',
        elements: '#masthead-ad,ytd-merch-shelf-renderer,.yt-mealbar-promo-renderer,ytmusic-mealbar-promo-renderer,ytmusic-statement-banner-renderer,.ytp-featured-product',
        video: 'video.html5-main-video',
        removal: 'ytd-reel-video-renderer .ytd-ad-slot-renderer'
      },

      // Settings with localStorage caching
      settings: {
        load() {
          try {
            const saved = localStorage.getItem(AdBlocker.config.storageKey);
            if (saved) {
              const parsed = JSON.parse(saved);
              AdBlocker.config.enabled = parsed.enabled ?? true;
              AdBlocker.config.enableLogging = parsed.enableLogging ?? false;
            }
          } catch (e) { }
        },

        save() {
          try {
            localStorage.setItem(AdBlocker.config.storageKey, JSON.stringify({
              enabled: AdBlocker.config.enabled,
              enableLogging: AdBlocker.config.enableLogging
            }));
          } catch (e) { }
        }
      },

      // Cached player access
      getPlayer() {
        const now = Date.now();
        if (now - AdBlocker.cache.lastCacheTime > AdBlocker.cache.cacheTimeout) {
          AdBlocker.cache.moviePlayer = document.querySelector('#movie_player');
          AdBlocker.cache.ytdPlayer = document.querySelector('#ytd-player');
          AdBlocker.cache.lastCacheTime = now;
        }

        const playerEl = AdBlocker.cache.ytdPlayer;
        return {
          element: AdBlocker.cache.moviePlayer,
          player: playerEl?.getPlayer?.() || playerEl
        };
      },

      // Streamlined ad detection and skipping
      skipAd() {
        if (!AdBlocker.config.enabled) return;

        const now = Date.now();
        if (now - AdBlocker.state.lastSkipAttempt < 300) return;
        AdBlocker.state.lastSkipAttempt = now;

        if (location.pathname.startsWith('/shorts/')) return;

        // Fast ad detection
        const adElement = document.querySelector('.ad-showing, .ytp-ad-timed-pie-countdown-container');
        if (!adElement) {
          AdBlocker.state.retryCount = 0;
          return;
        }

        try {
          const { element: moviePlayer, player } = AdBlocker.getPlayer();
          if (!player) return;

          const video = document.querySelector(AdBlocker.selectors.video);

          // Mute ad immediately
          if (video) video.muted = true;

          // Skip logic based on platform
          if (AdBlocker.state.isYouTubeMusic && video) {
            video.currentTime = video.duration || 999;
          } else if (typeof player.getVideoData === 'function') {
            const videoData = player.getVideoData();
            if (videoData?.video_id) {
              const currentTime = Math.floor(player.getCurrentTime?.() || 0);

              // Use most efficient skip method
              if (typeof player.loadVideoById === 'function') {
                player.loadVideoById(videoData.video_id, currentTime);
              }
            }
          }

          AdBlocker.state.retryCount = 0;

        } catch (error) {
          if (AdBlocker.state.retryCount < AdBlocker.config.maxRetries) {
            AdBlocker.state.retryCount++;
            setTimeout(AdBlocker.skipAd, 800);
          }
        }
      },

      // Minimal CSS injection
      addCss() {
        if (document.querySelector('#yt-ab-styles') || !AdBlocker.config.enabled) return;

        const style = document.createElement('style');
        style.id = 'yt-ab-styles';
        style.textContent = `${AdBlocker.selectors.ads},${AdBlocker.selectors.elements}{display:none!important;}`;
        (document.head || document.documentElement).appendChild(style);
      },

      removeCss() {
        document.querySelector('#yt-ab-styles')?.remove();
      },

      // Batched element removal
      removeElements() {
        if (!AdBlocker.config.enabled || AdBlocker.state.isYouTubeMusic) return;

        // Use requestIdleCallback for non-blocking removal
        const remove = () => {
          const elements = document.querySelectorAll(AdBlocker.selectors.removal);
          elements.forEach(el => el.closest('ytd-reel-video-renderer')?.remove());
        };

        if (window.requestIdleCallback) {
          requestIdleCallback(remove, { timeout: 100 });
        } else {
          setTimeout(remove, 0);
        }
      },

      // Optimized settings UI
      addSettingsUI() {
        const section = document.querySelector('.ytp-plus-settings-section[data-section="basic"]');
        if (!section || section.querySelector('.ab-settings')) return;

        const item = document.createElement('div');
        item.className = 'ytp-plus-settings-item ab-settings';
        item.innerHTML = `
          <div>
            <label class="ytp-plus-settings-item-label">Ad Blocker</label>
            <div class="ytp-plus-settings-item-description">Skip ads and remove ad elements automatically</div>
          </div>
          <input type="checkbox" class="ytp-plus-settings-checkbox" ${AdBlocker.config.enabled ? 'checked' : ''}>
        `;

        section.appendChild(item);

        item.querySelector('input').addEventListener('change', e => {
          AdBlocker.config.enabled = e.target.checked;
          AdBlocker.settings.save();
          AdBlocker.config.enabled ? AdBlocker.addCss() : AdBlocker.removeCss();
        });
      },

      // Streamlined initialization
      init() {
        if (AdBlocker.state.initialized) return;
        AdBlocker.state.initialized = true;

        AdBlocker.settings.load();

        if (AdBlocker.config.enabled) {
          AdBlocker.addCss();
          AdBlocker.removeElements();
        }

        // Start optimized intervals
        setInterval(AdBlocker.skipAd, AdBlocker.config.skipInterval);
        setInterval(AdBlocker.removeElements, AdBlocker.config.removeInterval);

        // Navigation handling
        const handleNavigation = () => {
          AdBlocker.state.isYouTubeShorts = location.pathname.startsWith('/shorts/');
          AdBlocker.cache.lastCacheTime = 0; // Reset cache
        };

        // Override pushState for SPA navigation
        const originalPushState = history.pushState;
        history.pushState = function () {
          const result = originalPushState.apply(this, arguments);
          setTimeout(handleNavigation, 50);
          return result;
        };

        // Settings modal integration
        const settingsObserver = new MutationObserver(mutations => {
          for (const { addedNodes } of mutations) {
            for (const node of addedNodes) {
              if (node.classList?.contains('ytp-plus-settings-modal')) {
                setTimeout(AdBlocker.addSettingsUI, 50);
                return;
              }
            }
          }
        });

        settingsObserver.observe(document.body, { childList: true });

        document.addEventListener('click', e => {
          if (e.target.dataset?.section === 'basic') {
            setTimeout(AdBlocker.addSettingsUI, 25);
          }
        }, { passive: true, capture: true });

        // Initial skip attempt
        if (AdBlocker.config.enabled) {
          setTimeout(AdBlocker.skipAd, 200);
        }
      }
    };

    // Initialize
    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', AdBlocker.init, { once: true });
    } else {
      AdBlocker.init();
    }

  })();

  // YouTube End Screen Remover
  (function () {
    'use strict';

    // Optimized configuration
    const CONFIG = {
      enabled: true,
      storageKey: 'youtube_endscreen_settings',
      selectors: '.ytp-ce-element-show,.ytp-ce-element,.ytp-endscreen-element,.ytp-ce-covering-overlay,.ytp-cards-teaser,.ytp-cards-button,.iv-drawer,.video-annotations',
      debounceMs: 32,
      batchSize: 20
    };

    // Minimal state with better tracking
    const state = {
      observer: null,
      styleEl: null,
      isActive: false,
      removeCount: 0,
      lastCheck: 0
    };

    // High-performance utilities
    const debounce = (fn, ms) => {
      let id;
      return (...args) => {
        clearTimeout(id);
        id = setTimeout(() => fn(...args), ms);
      };
    };

    const fastRemove = (elements) => {
      const len = Math.min(elements.length, CONFIG.batchSize);
      for (let i = 0; i < len; i++) {
        const el = elements[i];
        if (el?.isConnected) {
          el.style.cssText = 'display:none!important;visibility:hidden!important';
          try { el.remove(); state.removeCount++; } catch (e) { }
        }
      }
    };

    // Settings with caching
    const settings = {
      load: () => {
        try {
          const data = localStorage.getItem(CONFIG.storageKey);
          CONFIG.enabled = data ? JSON.parse(data).enabled ?? true : true;
        } catch (e) { CONFIG.enabled = true; }
      },

      save: () => {
        try {
          localStorage.setItem(CONFIG.storageKey, JSON.stringify({ enabled: CONFIG.enabled }));
        } catch (e) { }
        settings.apply();
      },

      apply: () => CONFIG.enabled ? init() : cleanup()
    };

    // Optimized core functions
    const injectCSS = () => {
      if (state.styleEl || !CONFIG.enabled) return;
      state.styleEl = document.createElement('style');
      state.styleEl.textContent = `${CONFIG.selectors}{display:none!important;opacity:0!important;visibility:hidden!important;pointer-events:none!important;transform:scale(0)!important}`;
      (document.head || document.documentElement).appendChild(state.styleEl);
    };

    const removeEndScreens = () => {
      if (!CONFIG.enabled) return;
      const now = performance.now();
      if (now - state.lastCheck < CONFIG.debounceMs) return;
      state.lastCheck = now;

      const elements = document.querySelectorAll(CONFIG.selectors);
      if (elements.length) fastRemove(elements);
    };

    const setupWatcher = () => {
      if (state.observer || !CONFIG.enabled) return;

      const throttledRemove = debounce(removeEndScreens, CONFIG.debounceMs);

      state.observer = new MutationObserver(mutations => {
        let hasRelevantChanges = false;
        for (const { addedNodes } of mutations) {
          for (const node of addedNodes) {
            if (node.nodeType === 1 && (node.className?.includes('ytp-') || node.querySelector?.('.ytp-ce-element'))) {
              hasRelevantChanges = true;
              break;
            }
          }
          if (hasRelevantChanges) break;
        }
        if (hasRelevantChanges) throttledRemove();
      });

      const target = document.querySelector('#movie_player') || document.body;
      state.observer.observe(target, {
        childList: true,
        subtree: true,
        attributeFilter: ['class', 'style']
      });
    };

    const cleanup = () => {
      state.observer?.disconnect();
      state.observer = null;
      state.styleEl?.remove();
      state.styleEl = null;
      state.isActive = false;
    };

    const init = () => {
      if (state.isActive || !CONFIG.enabled) return;
      state.isActive = true;
      injectCSS();
      removeEndScreens();
      setupWatcher();
    };

    // Streamlined settings UI
    const addSettingsUI = () => {
      const section = document.querySelector('.ytp-plus-settings-section[data-section="advanced"]');
      if (!section || section.querySelector('.endscreen-settings')) return;

      const container = document.createElement('div');
      container.className = 'ytp-plus-settings-item endscreen-settings';
      container.innerHTML = `
        <div>
          <label class="ytp-plus-settings-item-label">Hide End Screens & Cards</label>
          <div class="ytp-plus-settings-item-description">Remove end screen suggestions and info cards${state.removeCount ? ` (${state.removeCount} removed)` : ''}</div>
        </div>
        <input type="checkbox" class="ytp-plus-settings-checkbox" ${CONFIG.enabled ? 'checked' : ''}>
      `;

      section.appendChild(container);

      container.querySelector('input').addEventListener('change', e => {
        CONFIG.enabled = e.target.checked;
        settings.save();
      }, { passive: true });
    };

    // Optimized navigation handler
    const handlePageChange = debounce(() => {
      if (location.pathname === '/watch') {
        cleanup();
        requestIdleCallback ? requestIdleCallback(init) : setTimeout(init, 1);
      }
    }, 50);

    // Initialize
    settings.load();

    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', init, { once: true });
    } else {
      init();
    }

    // Event listeners
    document.addEventListener('yt-navigate-finish', handlePageChange, { passive: true });

    // Settings modal integration
    const settingsObserver = new MutationObserver(mutations => {
      for (const { addedNodes } of mutations) {
        for (const node of addedNodes) {
          if (node.classList?.contains('ytp-plus-settings-modal')) {
            setTimeout(addSettingsUI, 25);
            return;
          }
        }
      }
    });
    settingsObserver.observe(document.body, { childList: true });

    document.addEventListener('click', e => {
      if (e.target.dataset?.section === 'advanced') {
        setTimeout(addSettingsUI, 10);
      }
    }, { passive: true, capture: true });

  })();

  // Commment Manager
  (function () {
    'use strict';

    // Streamlined configuration
    const CONFIG = {
      selectors: {
        deleteButtons: 'div[class^="VfPpkd-Bz112c-"]',
        menuButton: '[aria-haspopup="menu"]'
      },
      classes: {
        checkbox: 'comment-checkbox',
        container: 'comment-controls-container'
      },
      debounceDelay: 100,
      deleteDelay: 200,
      enabled: true,
      storageKey: 'youtube_comment_manager_settings'
    };

    // State management
    const state = {
      observer: null,
      isProcessing: false
    };

    // Optimized settings
    const settings = {
      load: () => {
        try {
          const saved = localStorage.getItem(CONFIG.storageKey);
          if (saved) CONFIG.enabled = JSON.parse(saved).enabled ?? true;
        } catch (e) { }
      },
      save: () => {
        try {
          localStorage.setItem(CONFIG.storageKey, JSON.stringify({ enabled: CONFIG.enabled }));
        } catch (e) { }
      }
    };

    // Utility functions
    const debounce = (func, wait) => {
      let timeout;
      return (...args) => {
        clearTimeout(timeout);
        timeout = setTimeout(() => func(...args), wait);
      };
    };

    const $ = selector => document.querySelector(selector);
    const $$ = selector => document.querySelectorAll(selector);

    // Core functionality
    const addCheckboxes = () => {
      if (!CONFIG.enabled || state.isProcessing) return;

      const deleteButtons = $$(CONFIG.selectors.deleteButtons);

      deleteButtons.forEach(button => {
        if (button.closest(CONFIG.selectors.menuButton) ||
          button.parentNode.querySelector(`.${CONFIG.classes.checkbox}`)) return;

        const commentElement = button.closest('[class*="comment"]') ||
          button.closest('[role="article"]') ||
          button.parentNode;

        if (commentElement && !commentElement.hasAttribute('data-comment-text')) {
          commentElement.setAttribute('data-comment-text', commentElement.textContent.toLowerCase());
        }

        const checkbox = document.createElement('input');
        checkbox.type = 'checkbox';
        checkbox.className = CONFIG.classes.checkbox;
        checkbox.style.cssText = 'appearance:none;width:20px;height:20px;border:2px solid rgba(221,221,221,0.5);border-radius:6px;cursor:pointer;transition:all 0.2s ease;background:rgba(0,0,0,0.9);position:relative;margin-right:8px;';

        checkbox.addEventListener('change', updateDeleteButtonState);
        checkbox.addEventListener('click', e => e.stopPropagation());

        // Optimized positioning
        const dateElement = commentElement.querySelector('[class*="date"],[class*="time"],time,[title*="20"],[aria-label*="ago"]');

        if (dateElement) {
          dateElement.style.cssText += 'position:relative;';
          checkbox.style.cssText += 'position:absolute;right:-30px;top:0px;';
          dateElement.appendChild(checkbox);
        } else {
          button.parentNode.insertBefore(checkbox, button);
        }
      });
    };

    const addControlButtons = () => {
      if (!CONFIG.enabled || $(`.${CONFIG.classes.container}`)) return;

      const deleteButtons = $$(CONFIG.selectors.deleteButtons);
      if (!deleteButtons.length) return;

      const container = deleteButtons[0].parentNode.parentNode;
      const buttonsContainer = document.createElement('div');
      buttonsContainer.className = CONFIG.classes.container;
      buttonsContainer.style.cssText = 'position:fixed;top:50%;right:20px;transform:translateY(-50%);display:flex;flex-direction:column;gap:12px;z-index:9999;';

      const buttonStyles = 'padding:16px 24px;border:none;border-radius:16px;cursor:pointer;font-weight:600;font-size:14px;transition:all 0.3s ease;min-width:180px;text-align:center;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);';

      // Delete All Button
      const deleteAllButton = document.createElement('button');
      deleteAllButton.textContent = 'Delete Selected';
      deleteAllButton.className = 'delete-all-button';
      deleteAllButton.disabled = true;
      deleteAllButton.style.cssText = buttonStyles + 'background:rgba(244,67,54,0.2);color:#f44336;border:1px solid rgba(244,67,54,0.3);';
      deleteAllButton.addEventListener('click', deleteSelectedComments);

      // Select All Button
      const selectAllButton = document.createElement('button');
      selectAllButton.textContent = 'Select All';
      selectAllButton.style.cssText = buttonStyles + 'background:rgba(33,150,243,0.2);color:#2196f3;border:1px solid rgba(33,150,243,0.3);';
      selectAllButton.addEventListener('click', () => {
        $$(`.${CONFIG.classes.checkbox}`).forEach(cb => cb.checked = true);
        updateDeleteButtonState();
      });

      // Clear All Button
      const clearAllButton = document.createElement('button');
      clearAllButton.textContent = 'Clear All';
      clearAllButton.style.cssText = buttonStyles + 'background:rgba(76,175,80,0.2);color:#4caf50;border:1px solid rgba(76,175,80,0.3);';
      clearAllButton.addEventListener('click', () => {
        $$(`.${CONFIG.classes.checkbox}`).forEach(cb => cb.checked = false);
        updateDeleteButtonState();
      });

      buttonsContainer.append(deleteAllButton, selectAllButton, clearAllButton);
      container.insertBefore(buttonsContainer, deleteButtons[0].parentNode);
    };

    const updateDeleteButtonState = () => {
      const deleteAllButton = $('.delete-all-button');
      if (!deleteAllButton) return;

      const hasChecked = Array.from($$(`.${CONFIG.classes.checkbox}`)).some(cb => cb.checked);
      deleteAllButton.disabled = !hasChecked;
      deleteAllButton.style.opacity = hasChecked ? '1' : '0.6';
    };

    const deleteSelectedComments = () => {
      const checkedBoxes = Array.from($$(`.${CONFIG.classes.checkbox}`)).filter(cb => cb.checked);

      if (!checkedBoxes.length || !confirm(`Delete ${checkedBoxes.length} comment(s)?`)) return;

      state.isProcessing = true;
      checkedBoxes.forEach((checkbox, index) => {
        setTimeout(() => {
          const deleteButton = checkbox.nextElementSibling ||
            checkbox.parentNode.querySelector(CONFIG.selectors.deleteButtons);
          deleteButton?.click();
        }, index * CONFIG.deleteDelay);
      });

      setTimeout(() => state.isProcessing = false, checkedBoxes.length * CONFIG.deleteDelay + 1000);
    };

    const cleanup = () => {
      $$(`.${CONFIG.classes.checkbox}`).forEach(el => el.remove());
      $(`.${CONFIG.classes.container}`)?.remove();
    };

    const initializeScript = () => {
      if (CONFIG.enabled) {
        addCheckboxes();
        addControlButtons();
        updateDeleteButtonState();
      } else {
        cleanup();
      }
    };

    // Enhanced styles with better performance
    const addStyles = () => {
      if ($('#comment-delete-styles')) return;

      const style = document.createElement('style');
      style.id = 'comment-delete-styles';
      style.textContent = `
        .${CONFIG.classes.checkbox}:hover{border-color:rgba(33,150,243,0.7);background:rgba(245,245,245,0.3);transform:scale(1.1)}
        .${CONFIG.classes.checkbox}:checked{background:rgba(33,150,243,0.3);border-color:rgba(33,150,243,0.7);box-shadow:0 4px 12px rgba(33,150,243,0.2)}
        .${CONFIG.classes.checkbox}:checked::after{content:'✓';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#2196f3;font-size:14px;font-weight:bold}
        .delete-all-button:hover:not(:disabled){background:rgba(244,67,54,0.3)!important;transform:translateY(-3px);box-shadow:0 8px 24px rgba(244,67,54,0.2)}
      `;
      document.head.appendChild(style);
    };

    // Settings integration
    const addCommentManagerSettings = () => {
      const advancedSection = $('.ytp-plus-settings-section[data-section="advanced"]');
      if (!advancedSection || $('.comment-manager-settings-item')) return;

      const settingsItem = document.createElement('div');
      settingsItem.className = 'ytp-plus-settings-item comment-manager-settings-item';
      settingsItem.innerHTML = `
        <div>
          <label class="ytp-plus-settings-item-label">Comment Manager</label>
          <div class="ytp-plus-settings-item-description">Add bulk delete functionality for managing comments on YouTube</div>
        </div>
        <button class="ytp-plus-button" id="open-comment-history-page" style="margin:0 0 0 30px;padding:12px 16px;font-size:13px;background:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2)">
          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="gray" stroke-width="2">
            <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"/>
            <polyline points="15,3 21,3 21,9"/>
            <line x1="10" y1="14" x2="21" y2="3"/>
          </svg>
        </button>
      `;

      advancedSection.appendChild(settingsItem);

      $('#open-comment-history-page').addEventListener('click', () => {
        window.open('https://www.youtube.com/feed/history/comment_history', '_blank');
      });
    };

    // Optimized initialization
    const init = () => {
      settings.load();
      addStyles();

      // Setup observer with throttling
      state.observer?.disconnect();
      state.observer = new MutationObserver(debounce(initializeScript, CONFIG.debounceDelay));
      state.observer.observe(document.body, { childList: true, subtree: true });

      // Initial setup
      if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', initializeScript);
      } else {
        initializeScript();
      }

      // Settings modal integration
      const settingsObserver = new MutationObserver(mutations => {
        for (const mutation of mutations) {
          for (const node of mutation.addedNodes) {
            if (node.classList?.contains('ytp-plus-settings-modal')) {
              setTimeout(addCommentManagerSettings, 100);
              return;
            }
          }
        }
      });

      settingsObserver.observe(document.body, { childList: true, subtree: true });

      document.addEventListener('click', e => {
        if (e.target.dataset?.section === 'advanced') {
          setTimeout(addCommentManagerSettings, 50);
        }
      }, { passive: true, capture: true });
    };

    init();
  })();

  // Playlist Enhancements (Liked & Watch Later)
  (function () {
    'use strict';

    // --- Configuration ---
    const CONFIG = {
      enabled: true,
      selectors: {
        videoRenderer: 'ytd-playlist-video-renderer',
        videoTitle: '#video-title',
        playlistContainer: '#contents.ytd-playlist-video-list-renderer',
        searchInsertTarget: 'ytd-feed-filter-chip-bar-renderer #chips',
        searchContainer: '.playlist-search-container',
        removeMenuButton: '#menu button',
        removeMenuItem: 'ytd-menu-service-item-renderer',
        removeMenuItemIconPath: 'M11 17H9V8h2v9zm4-9h-2v9h2V8zm4-4v1h-1v16H6V5H5V4h4V3h6v1h4zm-2 1H7v15h10V5z',
        directRemoveButton: 'direct-remove-button'
      },
      classes: {
        videoHidden: 'playlist-video-hidden',
        initialized: 'playlist-enhanced'
      },
      debounceDelay: 200,
      clickDelay: 150,
      initTimeout: 10000,
      retryDelay: 1000,
      maxRetries: 5
    };

    // --- State ---
    const state = {
      observer: null,
      navigationObserver: null,
      isProcessingRemove: false,
      currentQuery: '',
      playlistListener: null,
      initialized: false,
      retryCount: 0,
      currentUrl: location.href
    };

    // --- Utilities ---
    const debounce = (func, wait) => {
      let timeout;
      return (...args) => {
        clearTimeout(timeout);
        timeout = setTimeout(() => func.apply(this, args), wait);
      };
    };

    const isTargetPlaylistPage = () => {
      const listId = new URLSearchParams(location.search).get('list');
      return listId === 'LL' || listId === 'WL';
    };

    const waitForElement = (selector, timeout = 5000) => {
      return new Promise((resolve, reject) => {
        const el = document.querySelector(selector);
        if (el) return resolve(el);

        const observer = new MutationObserver(() => {
          const el = document.querySelector(selector);
          if (el) {
            observer.disconnect();
            resolve(el);
          }
        });

        observer.observe(document.body, { childList: true, subtree: true });

        setTimeout(() => {
          observer.disconnect();
          reject(new Error(`Element not found: ${selector}`));
        }, timeout);
      });
    };

    // --- Core Functionality ---
    const addStyles = () => {
      if (document.getElementById('playlist-enh-styles')) return;
      const style = document.createElement('style');
      style.id = 'playlist-enh-styles';
      style.textContent = `
        html:not([dark]) .playlist-search-container {background-color: rgba(0,0,0,0.04);color: #222;border: 1px solid rgba(0,0,0,0.08);}
        html:not([dark]) .playlist-search-container:not(.active):hover {background-color: rgba(0,0,0,0.08);}
        html:not([dark]) .playlist-search-container.active {background-color: rgba(0,0,0,0.08);border-color: #f00;}
        html:not([dark]) .playlist-search-input::placeholder {color: #606060;}
        html:not([dark]) .playlist-search-clear {color: #606060;}
        html:not([dark]) .${CONFIG.selectors.directRemoveButton} {background: rgba(255,0,0,0.08);color: #222;border: 1px solid rgba(255,0,0,0.18);}
        html:not([dark]) .${CONFIG.selectors.directRemoveButton}:hover {background: rgba(255,0,0,0.18);}}
        html[dark] .playlist-search-container {background-color: rgba(255,255,255,0.10);color: #fff;border: 1px solid rgba(255,255,255,0.10);}
        html[dark] .playlist-search-container:not(.active):hover {background-color: rgba(255,255,255,0.15);}
        html[dark] .playlist-search-container.active {background-color: rgba(255,255,255,0.15);border-color: #f00;}
        html[dark] .playlist-search-input::placeholder {color: #aaa;}
        html[dark] .playlist-search-clear {color: #aaa;}
        html[dark] .${CONFIG.selectors.directRemoveButton} {background: rgba(255,0,0,0.10);color: #fff;border: 1px solid rgba(255,0,0,0.30);}
        html[dark] .${CONFIG.selectors.directRemoveButton}:hover {background: rgba(255,0,0,0.30);}}
        .playlist-search-container { display: inline-flex; align-items: center; vertical-align: middle; margin: 0 4px; height: 32px; border-radius: 8px; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); overflow: hidden; }
        .playlist-search-container:not(.active) { width: 44px; cursor: pointer; }
        .playlist-search-container.active { width: 240px; }
        .playlist-search-button { background: transparent; border: none; display: flex; align-items: center; justify-content: center; padding: 0; cursor: pointer; outline: none; width: 100%; height: 100%; }
        .playlist-search-container.active .playlist-search-button { display: none; }
        .playlist-search-input { flex-grow: 1; background: transparent; border: none; font-size: 14px; font-weight: 500; outline: none; font-family: inherit; width: 0; padding: 0; opacity: 0; transition: all 0.2s ease-in-out; }
        .playlist-search-container.active .playlist-search-input { width: 100%; padding: 0 12px; opacity: 1; }
        .playlist-search-clear { background: transparent; border: none; cursor: pointer; padding: 0 8px; font-size: 20px; line-height: 1; opacity: 0.7; display: none; }
        .playlist-search-clear:hover { opacity: 1; }
        .playlist-search-container.active .playlist-search-clear { display: block; }
        .${CONFIG.selectors.directRemoveButton} { position: absolute; top: 5px; right: 5px; border-radius: 50%; width: 36px; height: 36px; cursor: pointer; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transform: scale(0.8); transition: all 0.2s ease; z-index: 10; }
        ${CONFIG.selectors.videoRenderer}:hover .${CONFIG.selectors.directRemoveButton} { opacity: 1; visibility: visible; transform: scale(1); }
        .${CONFIG.selectors.directRemoveButton}:hover { transform: scale(1.1); }
        .${CONFIG.selectors.directRemoveButton} svg { pointer-events: none; }
        .${CONFIG.classes.videoHidden} { display: none !important; }
        .${CONFIG.classes.initialized} { }
      `;
      document.head.appendChild(style);
    };

    const addSearchUI = (target) => {
      if (target.querySelector(CONFIG.selectors.searchContainer)) return;

      const container = document.createElement('div');
      container.className = 'playlist-search-container';
      container.innerHTML = `
            <button class="playlist-search-button" aria-label="Search playlist">
                <svg xmlns="http://www.w3.org/2000/svg" fill="currentColor" height="20" viewBox="0 0 24 24" width="20" focusable="false" aria-hidden="true"><path d="M20.87,20.17l-5.59-5.59C16.35,13.35,17,11.75,17,10c0-3.87-3.13-7-7-7s-7,3.13-7,7s3.13,7,7,7c1.75,0,3.35-0.65,4.58-1.71l5.59,5.59L20.87,20.17z M10,16c-3.31,0-6-2.69-6-6s2.69-6,6-6s6,2.69,6,6S13.31,16,10,16z"></path></svg>
            </button>
            <input type="text" placeholder="Search playlist..." class="playlist-search-input">
            <button class="playlist-search-clear" title="Clear search">&times;</button>
        `;

      const input = container.querySelector('input');
      const button = container.querySelector('button.playlist-search-button');
      const clearButton = container.querySelector('button.playlist-search-clear');

      const debouncedFilter = debounce(filterVideos, CONFIG.debounceDelay);
      input.addEventListener('input', (e) => {
        state.currentQuery = e.target.value;
        clearButton.style.display = state.currentQuery ? 'block' : 'none';
        debouncedFilter();
      });

      clearButton.addEventListener('click', () => {
        input.value = '';
        input.dispatchEvent(new Event('input', { bubbles: true }));
        input.focus();
      });

      button.addEventListener('click', (e) => {
        if (!container.classList.contains('active')) {
          e.stopPropagation();
          container.classList.add('active');
          input.focus();
        }
      });

      input.addEventListener('blur', () => {
        if (input.value === '') container.classList.remove('active');
      });

      target.appendChild(container);
    };

    const performDirectRemove = async (removeButton) => {
      if (state.isProcessingRemove) return;
      state.isProcessingRemove = true;

      const videoRenderer = removeButton.closest(CONFIG.selectors.videoRenderer);
      try {
        if (!videoRenderer) throw new Error("Video renderer not found.");

        const menuButton = videoRenderer.querySelector(CONFIG.selectors.removeMenuButton);
        if (!menuButton) throw new Error("Menu button not found.");

        menuButton.click();
        await new Promise(resolve => setTimeout(resolve, CONFIG.clickDelay));

        const removeItem = Array.from(document.querySelectorAll(CONFIG.selectors.removeMenuItem))
          .find(item => {
            const path = item.querySelector('path')?.getAttribute('d');
            const text = item.textContent?.trim().toLowerCase();
            return path === CONFIG.selectors.removeMenuItemIconPath || text?.startsWith('remove from');
          });

        if (removeItem) {
          videoRenderer.style.transition = 'opacity 0.3s, transform 0.3s';
          videoRenderer.style.opacity = '0';
          videoRenderer.style.transform = 'translateX(-50px)';
          removeItem.click();
        } else {
          document.body.click(); // Close menu if item not found
          throw new Error("Remove menu item not found.");
        }
      } catch (error) {
        console.error("Direct remove failed:", error);
        if (videoRenderer) videoRenderer.style.cssText = ''; // Reset styles on failure
      } finally {
        state.isProcessingRemove = false;
      }
    };

    const filterVideos = () => {
      const videos = document.querySelectorAll(CONFIG.selectors.videoRenderer);
      const query = state.currentQuery.toLowerCase().trim();

      videos.forEach(video => {
        const titleElement = video.querySelector(CONFIG.selectors.videoTitle);
        const title = titleElement ? titleElement.textContent.toLowerCase() : '';
        video.classList.toggle(CONFIG.classes.videoHidden, !title.includes(query));
      });
    };

    const processVideoRenderer = (video) => {
      // Add direct remove button
      if (!video.querySelector(`.${CONFIG.selectors.directRemoveButton}`)) {
        const button = document.createElement('button');
        button.className = CONFIG.selectors.directRemoveButton;
        button.title = 'Remove from playlist';
        button.innerHTML = `<svg xmlns="http://www.w3.org/2000/svg" height="20" viewBox="0 0 24 24" width="20" fill="currentColor"><path d="${CONFIG.selectors.removeMenuItemIconPath}"></path></svg>`;
        video.style.position = 'relative'; // Ensure proper positioning
        video.appendChild(button);
      }

      // Apply initial filter state
      const titleElement = video.querySelector(CONFIG.selectors.videoTitle);
      const title = titleElement ? titleElement.textContent.toLowerCase() : '';
      video.classList.toggle(CONFIG.classes.videoHidden, !title.includes(state.currentQuery));
    };

    const setupListeners = (playlistEl) => {
      // Mark as initialized
      playlistEl.classList.add(CONFIG.classes.initialized);

      // Disconnect old observer
      state.observer?.disconnect();

      // Setup mutation observer for new videos
      state.observer = new MutationObserver((mutations) => {
        for (const mutation of mutations) {
          for (const node of mutation.addedNodes) {
            if (node.nodeType === Node.ELEMENT_NODE && node.matches(CONFIG.selectors.videoRenderer)) {
              processVideoRenderer(node);
            }
          }
        }
      });
      state.observer.observe(playlistEl, { childList: true, subtree: true });

      // Setup delegated click listener for remove buttons
      if (state.playlistListener) playlistEl.removeEventListener('click', state.playlistListener);
      state.playlistListener = (event) => {
        const removeButton = event.target.closest(`.${CONFIG.selectors.directRemoveButton}`);
        if (removeButton) {
          event.preventDefault();
          event.stopPropagation();
          performDirectRemove(removeButton);
        }
      };
      playlistEl.addEventListener('click', state.playlistListener);
    };

    const cleanup = () => {
      state.observer?.disconnect();
      state.observer = null;
      const playlistEl = document.querySelector(CONFIG.selectors.playlistContainer);
      if (playlistEl && state.playlistListener) {
        playlistEl.removeEventListener('click', state.playlistListener);
        state.playlistListener = null;
        playlistEl.classList.remove(CONFIG.classes.initialized);
      }
      document.querySelector(CONFIG.selectors.searchContainer)?.remove();
      document.querySelectorAll(`.${CONFIG.selectors.directRemoveButton}`).forEach(btn => btn.remove());
      document.querySelectorAll(`.${CONFIG.classes.videoHidden}`).forEach(v => v.classList.remove(CONFIG.classes.videoHidden));
      state.currentQuery = '';
      state.initialized = false;
      state.retryCount = 0;
    };

    const init = async () => {
      if (!CONFIG.enabled || !isTargetPlaylistPage()) {
        cleanup();
        return;
      }

      // Check if already initialized
      const existingPlaylist = document.querySelector(`${CONFIG.selectors.playlistContainer}.${CONFIG.classes.initialized}`);
      if (existingPlaylist && state.initialized) {
        return;
      }

      try {
        const searchTarget = await waitForElement(CONFIG.selectors.searchInsertTarget, CONFIG.initTimeout);
        const playlistEl = await waitForElement(CONFIG.selectors.playlistContainer, CONFIG.initTimeout);

        addStyles();
        addSearchUI(searchTarget);

        document.querySelectorAll(CONFIG.selectors.videoRenderer).forEach(processVideoRenderer);
        setupListeners(playlistEl);

        state.initialized = true;
        state.retryCount = 0;

      } catch (error) {
        console.error("Playlist Enhancements initialization failed:", error);
        if (state.retryCount < CONFIG.maxRetries) {
          state.retryCount++;
          setTimeout(init, CONFIG.retryDelay * state.retryCount);
        }
      }
    };

    const handleNavigation = debounce(() => {
      const newUrl = location.href;
      if (newUrl !== state.currentUrl) {
        state.currentUrl = newUrl;
        cleanup();
        setTimeout(init, 300);
      }
    }, 100);

    const setupNavigationObserver = () => {
      // Enhanced navigation detection
      state.navigationObserver?.disconnect();
      state.navigationObserver = new MutationObserver((mutations) => {
        for (const mutation of mutations) {
          if (mutation.target.matches &&
            (mutation.target.matches('ytd-app') || mutation.target.matches('ytd-page-manager'))) {
            handleNavigation();
            break;
          }
        }
      });

      const appElement = document.querySelector('ytd-app') || document.body;
      state.navigationObserver.observe(appElement, {
        childList: true,
        subtree: true,
        attributes: true,
        attributeFilter: ['page-subtype']
      });
    };

    // --- Initialization and Navigation ---
    const initializeModule = () => {
      addStyles();
      setupNavigationObserver();

      // Handle page load events
      document.addEventListener('yt-navigate-finish', handleNavigation);
      window.addEventListener('popstate', handleNavigation);

      // Override history methods for SPA navigation
      const originalPushState = history.pushState;
      const originalReplaceState = history.replaceState;

      history.pushState = function (...args) {
        const result = originalPushState.apply(this, args);
        handleNavigation();
        return result;
      };

      history.replaceState = function (...args) {
        const result = originalReplaceState.apply(this, args);
        handleNavigation();
        return result;
      };

      // Initial setup
      init();
    };

    // Start when DOM is ready
    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', initializeModule);
    } else {
      initializeModule();
    }

    // Cleanup on page unload
    window.addEventListener('beforeunload', cleanup);

  })();

  // viewer
  (function () {
    "use strict";

    // Glassmorphism styles for thumbnail viewer
    const css = `
      :root {
        --thumbnail-btn-bg-light: rgba(255,255,255,0.85);
        --thumbnail-btn-bg-dark: rgba(0,0,0,0.7);
        --thumbnail-btn-hover-bg-light: rgba(255,255,255,1);
        --thumbnail-btn-hover-bg-dark: rgba(0,0,0,0.9);
        --thumbnail-btn-color-light: #222;
        --thumbnail-btn-color-dark: #fff;
        --thumbnail-modal-bg-light: rgba(255,255,255,0.95);
        --thumbnail-modal-bg-dark: rgba(34,34,34,0.85);
        --thumbnail-modal-title-light: #222;
        --thumbnail-modal-title-dark: #fff;
        --thumbnail-modal-btn-bg-light: rgba(0,0,0,0.08);
        --thumbnail-modal-btn-bg-dark: rgba(255,255,255,0.08);
        --thumbnail-modal-btn-hover-bg-light: rgba(0,0,0,0.18);
        --thumbnail-modal-btn-hover-bg-dark: rgba(255,255,255,0.18);
        --thumbnail-modal-btn-color-light: #222;
        --thumbnail-modal-btn-color-dark: #fff;
        --thumbnail-modal-btn-hover-color-light: #ff4444;
        --thumbnail-modal-btn-hover-color-dark: #ff4444;
        --thumbnail-glass-blur: blur(18px) saturate(180%);
        --thumbnail-glass-shadow: 0 8px 32px rgba(0,0,0,.2);
        --thumbnail-glass-border: rgba(255,255,255,.2);
      }
      html[dark], body[dark] {
        --thumbnail-btn-bg: var(--thumbnail-btn-bg-dark);
        --thumbnail-btn-hover-bg: var(--thumbnail-btn-hover-bg-dark);
        --thumbnail-btn-color: var(--thumbnail-btn-color-dark);
        --thumbnail-modal-bg: var(--thumbnail-modal-bg-dark);
        --thumbnail-modal-title: var(--thumbnail-modal-title-dark);
        --thumbnail-modal-btn-bg: var(--thumbnail-modal-btn-bg-dark);
        --thumbnail-modal-btn-hover-bg: var(--thumbnail-modal-btn-hover-bg-dark);
        --thumbnail-modal-btn-color: var(--thumbnail-modal-btn-color-dark);
        --thumbnail-modal-btn-hover-color: var(--thumbnail-modal-btn-hover-color-dark);
      }
      html:not([dark]) {
        --thumbnail-btn-bg: var(--thumbnail-btn-bg-light);
        --thumbnail-btn-hover-bg: var(--thumbnail-btn-hover-bg-light);
        --thumbnail-btn-color: var(--thumbnail-btn-color-light);
        --thumbnail-modal-bg: var(--thumbnail-modal-bg-light);
        --thumbnail-modal-title: var(--thumbnail-modal-title-light);
        --thumbnail-modal-btn-bg: var(--thumbnail-modal-btn-bg-light);
        --thumbnail-modal-btn-hover-bg: var(--thumbnail-modal-btn-hover-bg-light);
        --thumbnail-modal-btn-color: var(--thumbnail-modal-btn-color-light);
        --thumbnail-modal-btn-hover-color: var(--thumbnail-modal-btn-hover-color-light);
      }
      .thumbnail-overlay-container {
        position: absolute;
        bottom: 8px;
        left: 8px;
        z-index: 9999;
        opacity: 0;
        transition: opacity 0.2s ease;
      }
      .thumbnail-overlay-button {
        width: 28px;
        height: 28px;
        background: var(--thumbnail-btn-bg);
        border: none;
        border-radius: 8px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--thumbnail-btn-color);
        position: relative;
        box-shadow: var(--thumbnail-glass-shadow);
        backdrop-filter: var(--thumbnail-glass-blur);
        -webkit-backdrop-filter: var(--thumbnail-glass-blur);
        border: 1px solid var(--thumbnail-glass-border);
      }
      .thumbnail-overlay-button:hover {
        background: var(--thumbnail-btn-hover-bg);
      }
      .thumbnail-overlay-button svg {
        width: 18px;
        height: 18px;
        fill: currentColor;
      }
      .thumbnail-dropdown {
        position: absolute;
        bottom: 100%;
        left: 0;
        background: var(--thumbnail-btn-hover-bg);
        border-radius: 8px;
        padding: 4px;
        margin-bottom: 4px;
        display: none;
        flex-direction: column;
        min-width: 140px;
        box-shadow: var(--thumbnail-glass-shadow);
        z-index: 10000;
        backdrop-filter: var(--thumbnail-glass-blur);
        -webkit-backdrop-filter: var(--thumbnail-glass-blur);
        border: 1px solid var(--thumbnail-glass-border);
      }
      .thumbnail-dropdown.show {
        display: flex !important;
      }
      .thumbnail-dropdown-item {
        background: none;
        border: none;
        color: var(--thumbnail-btn-color);
        padding: 8px 12px;
        cursor: pointer;
        border-radius: 4px;
        font-size: 12px;
        text-align: left;
        white-space: nowrap;
        transition: background-color 0.2s ease;
      }
      .thumbnail-dropdown-item:hover {
        background: rgba(255,255,255,0.1);
      }
      .yt-lockup-view-model-wiz__content-image:hover .thumbnail-overlay-container {
        opacity: 1;
      }
      .yt-lockup-view-model-wiz__content-image {
        position: relative;
      }
      .shortsLockupViewModelHostEndpoint:hover .thumbnail-overlay-container {
        opacity: 1;
      }
      .shortsLockupViewModelHostEndpoint {
        position: relative;
      }
      ytd-thumbnail:hover .thumbnail-overlay-container {
        opacity: 1;
      }
      ytd-thumbnail {
        position: relative;
      }
      ytm-shorts-lockup-view-model:hover .thumbnail-overlay-container {
        opacity: 1;
      }
      ytm-shorts-lockup-view-model {
        position: relative;
      }
      .thumbnailPreview-button {
        position: absolute;
        bottom: 10px;
        left: 5px;
        background-color: var(--thumbnail-btn-bg);
        color: var(--thumbnail-btn-color);
        border: none;
        border-radius: 6px;
        padding: 3px;
        font-size: 18px;
        cursor: pointer;
        z-index: 2000;
        opacity: 0;
        transition: opacity 0.3s;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: var(--thumbnail-glass-shadow);
        backdrop-filter: var(--thumbnail-glass-blur);
        -webkit-backdrop-filter: var(--thumbnail-glass-blur);
        border: 1px solid var(--thumbnail-glass-border);
      }
      .thumbnailPreview-container {
        position: relative;
      }
      .thumbnailPreview-container:hover .thumbnailPreview-button {
        opacity: 1;
      }
      /* Modal styles */
      .thumbnail-modal-overlay {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(0,0,0,0.7);
        z-index: 99999;
        display: flex;
        align-items: center;
        justify-content: center;
        animation: fadeInModal 0.2s;
        backdrop-filter: var(--thumbnail-glass-blur);
        -webkit-backdrop-filter: var(--thumbnail-glass-blur);
      }
      .thumbnail-modal-content {
        background: var(--thumbnail-modal-bg);
        border-radius: 18px;
        box-shadow: var(--thumbnail-glass-shadow);
        max-width: 90vw;
        max-height: 90vh;
        overflow: auto;
        position: relative;
        padding: 24px 24px 16px 24px;
        display: flex;
        flex-direction: column;
        align-items: center;
        animation: scaleInModal 0.2s;
        border: 1px solid var(--thumbnail-glass-border);
        backdrop-filter: var(--thumbnail-glass-blur);
        -webkit-backdrop-filter: var(--thumbnail-glass-blur);
      }
      .thumbnail-modal-close {
        position: absolute;
        top: 12px;
        right: 18px;
        background: rgba(0,0,0,0.2);
        color: #fff;
        border: none;
        font-size: 28px;
        line-height: 1;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        cursor: pointer;
        transition: background 0.2s;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: center;
      }
      .thumbnail-modal-close:hover {
        background: rgba(0,0,0,0.4);
        color: #ff4444;
      }
      .thumbnail-modal-img {
        max-width: 80vw;
        max-height: 70vh;
        border-radius: 12px;
        margin-bottom: 12px;
        box-shadow: var(--thumbnail-glass-shadow);
        background: #222;
        border: 1px solid var(--thumbnail-glass-border);
      }
      .thumbnail-modal-options {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-top: 8px;
        justify-content: center;
      }
      .thumbnail-modal-option-btn {
        background: var(--thumbnail-modal-btn-bg);
        color: var(--thumbnail-modal-btn-color);
        border: none;
        border-radius: 8px;
        padding: 8px 18px;
        font-size: 14px;
        cursor: pointer;
        transition: background 0.2s;
        margin-bottom: 6px;
        box-shadow: var(--thumbnail-glass-shadow);
        backdrop-filter: var(--thumbnail-glass-blur);
        -webkit-backdrop-filter: var(--thumbnail-glass-blur);
        border: 1px solid var(--thumbnail-glass-border);
      }
      .thumbnail-modal-option-btn:hover {
        background: var(--thumbnail-modal-btn-hover-bg);
        color: var(--thumbnail-modal-btn-hover-color);
      }
      .thumbnail-modal-title {
        font-size: 18px;
        font-weight: 600;
        color: var(--thumbnail-modal-title);
        margin-bottom: 10px;
        text-align: center;
        text-shadow: 0 2px 8px rgba(0,0,0,0.15);
      }
      @keyframes fadeInModal {
        from { opacity: 0; }
        to { opacity: 1; }
      }
      @keyframes scaleInModal {
        from { transform: scale(0.95); }
        to { transform: scale(1); }
      }
    `;

    const style = document.createElement("style");
    style.textContent = css;
    document.head.appendChild(style);

    function extractVideoId(url) {
      const regularMatch = url.match(/[?&]v=([^&]+)/);
      if (regularMatch) {
        return regularMatch[1];
      }
      const shortsMatch = url.match(/\/shorts\/([^?&]+)/);
      if (shortsMatch) {
        return shortsMatch[1];
      }
      return null;
    }

    function openImageModal(url, options, videoId, isShorts) {
      document.querySelectorAll('.thumbnail-modal-overlay').forEach(m => m.remove());

      const overlay = document.createElement('div');
      overlay.className = 'thumbnail-modal-overlay';

      const content = document.createElement('div');
      content.className = 'thumbnail-modal-content';

      const closeBtn = document.createElement('button');
      closeBtn.className = 'thumbnail-modal-close';
      closeBtn.innerHTML = '×';
      closeBtn.title = 'Close';
      closeBtn.onclick = () => overlay.remove();

      const title = document.createElement('div');
      title.className = 'thumbnail-modal-title';
      title.textContent = isShorts ? 'Shorts Thumbnail Preview' : 'Video Thumbnail Preview';

      const img = document.createElement('img');
      img.className = 'thumbnail-modal-img';
      img.src = url;
      img.alt = 'Thumbnail Preview';
      img.title = 'Click to open in new tab';
      img.style.cursor = 'pointer';
      img.onclick = () => window.open(img.src, '_blank');

      const optionsDiv = document.createElement('div');
      optionsDiv.className = 'thumbnail-modal-options';

      options.forEach(opt => {
        const btn = document.createElement('button');
        btn.className = 'thumbnail-modal-option-btn';
        btn.textContent = opt.name;
        btn.onclick = () => {
          img.src = `https://i.ytimg.com/vi/${videoId}/${opt.filename}`;
        };
        optionsDiv.appendChild(btn);
      });

      content.append(closeBtn, title, img, optionsDiv);
      overlay.appendChild(content);

      overlay.onclick = e => {
        if (e.target === overlay) overlay.remove();
      };
      document.addEventListener('keydown', function escHandler(e) {
        if (e.key === 'Escape') {
          overlay.remove();
          document.removeEventListener('keydown', escHandler, true);
        }
      }, true);

      document.body.appendChild(overlay);
    }

    function createSVGElement(pathD) {
      const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
      const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
      svg.setAttribute("xmlns", "http://www.w3.org/2000/svg");
      svg.setAttribute("width", "1em");
      svg.setAttribute("height", "1em");
      svg.setAttribute("viewBox", "0 0 24 24");
      path.setAttribute("fill", "currentColor");
      path.setAttribute("d", pathD);
      svg.appendChild(path);
      return svg;
    }

    const defaultIconPath =
      "M18 20H4V6h9V4H4c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2v-9h-2zm-7.79-3.17l-1.96-2.36L5.5 18h11l-3.54-4.71zM20 4V1h-2v3h-3c.01.01 0 2 0 2h3v2.99c.01.01 2 0 2 0V6h3V4";
    const hoverIconPath =
      "M19 7v2.99s-1.99.01-2 0V7h-3s.01-1.99 0-2h3V2h2v3h3v2zm-3 4V8h-3V5H5c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2v-8zM5 19l3-4l2 3l3-4l4 5z";

    function createOverlayButton(videoId, isShorts = false) {
      const container = document.createElement("div");
      container.className = "thumbnail-overlay-container";

      const button = document.createElement("button");
      button.className = "thumbnail-overlay-button";

      const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
      svg.setAttribute("viewBox", "0 0 24 24");
      svg.setAttribute("xmlns", "http://www.w3.org/2000/svg");
      const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
      path.setAttribute("d", defaultIconPath);
      svg.appendChild(path);
      button.appendChild(svg);

      let thumbnailOptions;
      if (isShorts) {
        thumbnailOptions = [
          { name: "Default", filename: "oardefault.jpg" },
          { name: "Alternative 1", filename: "oar1.jpg" },
          { name: "Alternative 2", filename: "oar2.jpg" },
          { name: "Alternative 3", filename: "oar3.jpg" },
        ];
      } else {
        thumbnailOptions = [
          { name: "Default", filename: "default.jpg" },
          { name: "Medium", filename: "mqdefault.jpg" },
          { name: "High", filename: "hqdefault.jpg" },
          { name: "Standard", filename: "sddefault.jpg" },
          { name: "Max Res", filename: "maxresdefault.jpg" },
        ];
      }

      button.addEventListener("click", function (e) {
        e.preventDefault();
        e.stopPropagation();
        openImageModal(
          `https://i.ytimg.com/vi/${videoId}/${thumbnailOptions[0].filename}`,
          thumbnailOptions,
          videoId,
          isShorts
        );
      });

      container.appendChild(button);
      return container;
    }

    function addButtonToElement(element, getFullSizeUrl) {
      if (!element.closest(".thumbnailPreview-container")) {
        const container = document.createElement("div");
        container.className = "thumbnailPreview-container";
        element.parentNode.insertBefore(container, element);
        container.appendChild(element);

        const button = document.createElement("button");
        button.className = "thumbnailPreview-button";
        const defaultIcon = createSVGElement(defaultIconPath);
        button.appendChild(defaultIcon);

        button.addEventListener("mouseenter", () => {
          button.innerHTML = "";
          button.appendChild(createSVGElement(hoverIconPath));
        });
        button.addEventListener("mouseleave", () => {
          button.innerHTML = "";
          button.appendChild(createSVGElement(defaultIconPath));
        });

        button.addEventListener("click", function (e) {
          e.preventDefault();
          e.stopPropagation();
          const url = getFullSizeUrl(element.src);
          if (url) {
            openImageModal(url, [
              { name: "Original", filename: "" }
            ], "", false);
          }
        });

        container.appendChild(button);
      }
    }

    function isWatchPage() {
      const url = new URL(window.location.href);
      return url.pathname === "/watch" && url.searchParams.has("v");
    }

    function processAvatars() {
      const avatars = document.querySelectorAll("yt-avatar-shape img, yt-img-shadow#avatar img");
      avatars.forEach((img) => {
        if (!img.closest(".thumbnailPreview-container")) {
          addButtonToElement(img, (src) => src.replace(/=s\d+-c-k-c0x00ffffff-no-rj.*/, "=s0"));
          if (isWatchPage()) {
            const button = img.closest(".thumbnailPreview-container").querySelector(".thumbnailPreview-button");
            if (button) {
              button.style.display = "none";
            }
          }
        }
      });
    }

    function processChannelBanners() {
      const banners = document.querySelectorAll("yt-image-banner-view-model img");
      banners.forEach((img) => {
        if (!img.closest(".thumbnailPreview-container")) {
          addButtonToElement(img, (src) => src.replace(/=w\d+-.*/, "=s0"));
        }
      });
    }

    function cleanupDuplicateButtons() {
      const shortsWithMultipleButtons = document.querySelectorAll("ytm-shorts-lockup-view-model");
      shortsWithMultipleButtons.forEach((shortsContainer) => {
        const buttons = shortsContainer.querySelectorAll(".thumbnail-overlay-container");
        if (buttons.length > 1) {
          const thumbnailContainer = shortsContainer.querySelector(".shortsLockupViewModelHostThumbnailContainer");
          const preferredButton = thumbnailContainer
            ? thumbnailContainer.querySelector(".thumbnail-overlay-container")
            : buttons[0];
          buttons.forEach((button) => {
            if (button !== preferredButton) {
              button.remove();
            }
          });
        }
      });
    }

    function addOverlayButtons() {
      const sidebarThumbnails = document.querySelectorAll(".yt-lockup-view-model-wiz__content-image:not([data-overlay-added])");
      sidebarThumbnails.forEach((container) => {
        const href = container.getAttribute("href");
        if (href) {
          const videoId = extractVideoId(href);
          if (videoId) {
            const overlayButton = createOverlayButton(videoId, false);
            container.appendChild(overlayButton);
            container.setAttribute("data-overlay-added", "true");
          }
        }
      });

      const channelThumbnails = document.querySelectorAll("ytd-thumbnail:not([data-overlay-added])");
      channelThumbnails.forEach((thumbnail) => {
        const link = thumbnail.querySelector('a[href*="/watch?v="]');
        if (link) {
          const href = link.getAttribute("href");
          const videoId = extractVideoId(href);
          if (videoId) {
            const overlayButton = createOverlayButton(videoId, false);
            thumbnail.appendChild(overlayButton);
            thumbnail.setAttribute("data-overlay-added", "true");
          }
        }
      });

      const allShortsContainers = document.querySelectorAll("ytm-shorts-lockup-view-model:not([data-overlay-added])");
      allShortsContainers.forEach((shortsContainer) => {
        const link = shortsContainer.querySelector('a[href*="/shorts/"]');
        if (link) {
          const href = link.getAttribute("href");
          const videoId = extractVideoId(href);
          if (videoId) {
            const overlayButton = createOverlayButton(videoId, true);
            const thumbnailContainer = shortsContainer.querySelector(".shortsLockupViewModelHostThumbnailContainer");
            if (thumbnailContainer) {
              thumbnailContainer.appendChild(overlayButton);
            } else {
              shortsContainer.appendChild(overlayButton);
            }
            shortsContainer.setAttribute("data-overlay-added", "true");
          }
        }
      });

      const sidebarShorts = document.querySelectorAll(".shortsLockupViewModelHostEndpoint:not([data-overlay-added])");
      sidebarShorts.forEach((container) => {
        if (container.closest("ytm-shorts-lockup-view-model")) {
          return;
        }
        const href = container.getAttribute("href");
        if (href) {
          const videoId = extractVideoId(href);
          if (videoId) {
            const overlayButton = createOverlayButton(videoId, true);
            container.appendChild(overlayButton);
            container.setAttribute("data-overlay-added", "true");
          }
        }
      });

      processAvatars();
      processChannelBanners();
      cleanupDuplicateButtons();
    }

    function observeChanges() {
      const observer = new MutationObserver(function (mutations) {
        let shouldCheck = false;
        mutations.forEach(function (mutation) {
          if (mutation.type === "childList" && mutation.addedNodes.length > 0) {
            mutation.addedNodes.forEach(function (node) {
              if (node.nodeType === Node.ELEMENT_NODE) {
                if (
                  node.querySelector &&
                  (node.querySelector(".yt-lockup-view-model-wiz__content-image") ||
                    node.classList.contains("yt-lockup-view-model-wiz__content-image") ||
                    node.querySelector(".shortsLockupViewModelHostEndpoint") ||
                    node.classList.contains("shortsLockupViewModelHostEndpoint") ||
                    node.querySelector("ytd-thumbnail") ||
                    node.classList.contains("ytd-thumbnail") ||
                    node.querySelector("ytm-shorts-lockup-view-model") ||
                    node.classList.contains("ytm-shorts-lockup-view-model") ||
                    node.querySelector("yt-avatar-shape") ||
                    node.classList.contains("yt-avatar-shape") ||
                    node.querySelector("yt-image-banner-view-model") ||
                    node.classList.contains("yt-image-banner-view-model"))
                ) {
                  shouldCheck = true;
                }
              }
            });
          }
        });
        if (shouldCheck) {
          setTimeout(addOverlayButtons, 100);
        }
      });
      observer.observe(document.body, {
        childList: true,
        subtree: true,
      });
    }

    function setupUrlChangeDetection() {
      let currentUrl = location.href;
      const originalPushState = history.pushState;
      const originalReplaceState = history.replaceState;
      history.pushState = function () {
        originalPushState.apply(history, arguments);
        setTimeout(() => {
          if (location.href !== currentUrl) {
            currentUrl = location.href;
            setTimeout(addOverlayButtons, 500);
          }
        }, 100);
      };
      history.replaceState = function () {
        originalReplaceState.apply(history, arguments);
        setTimeout(() => {
          if (location.href !== currentUrl) {
            currentUrl = location.href;
            setTimeout(addOverlayButtons, 500);
          }
        }, 100);
      };
      window.addEventListener("popstate", function () {
        setTimeout(() => {
          if (location.href !== currentUrl) {
            currentUrl = location.href;
            setTimeout(addOverlayButtons, 300);
          }
        }, 100);
      });
      setInterval(function () {
        if (location.href !== currentUrl) {
          currentUrl = location.href;
          setTimeout(addOverlayButtons, 300);
        }
      }, 500);
      document.addEventListener("yt-navigate-start", function () {
        setTimeout(addOverlayButtons, 1000);
      });
      document.addEventListener("yt-navigate-finish", function () {
        setTimeout(addOverlayButtons, 500);
      });
    }

    function observePageChanges() {
      const contentObserver = new MutationObserver((mutations) => {
        let shouldProcessRegular = false;
        mutations.forEach((mutation) => {
          if (mutation.addedNodes.length > 0) {
            shouldProcessRegular = true;
          }
        });
        if (shouldProcessRegular) {
          processAvatars();
          processChannelBanners();
        }
      });
      const panelObserver = new MutationObserver((mutations) => {
        for (const mutation of mutations) {
          if (
            mutation.type === "childList" &&
            (mutation.target.id === "secondary" ||
              mutation.target.id === "secondary-inner")
          ) {
            // Removed thumbnailPreview-custom-image insertion
          }
        }
      });
      contentObserver.observe(document.body, {
        childList: true,
        subtree: true,
      });
      const observeSecondary = () => {
        const secondary = document.getElementById("secondary");
        if (secondary) {
          panelObserver.observe(secondary, {
            childList: true,
            subtree: true,
          });
        } else {
          setTimeout(observeSecondary, 1000);
        }
      };
      observeSecondary();
    }

    function init() {
      addOverlayButtons();
      observeChanges();
      observePageChanges();
      setupUrlChangeDetection();
      window.addEventListener("yt-navigate-finish", () => {
        setTimeout(addOverlayButtons, 1000);
      });
      setTimeout(addOverlayButtons, 2000);
      setTimeout(addOverlayButtons, 5000);
    }

    if (document.readyState === "loading") {
      document.addEventListener("DOMContentLoaded", init);
    } else {
      init();
    }
  })();

  // Stats button and menu
  (function () {
    'use strict';

    // Glassmorphism styles for stats button and menu
    const styles = `
        .videoStats {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            margin-left: 8px;
            background: rgba(255,255,255,0.15);
            box-shadow: 0 8px 32px rgba(0,0,0,.18);
            backdrop-filter: blur(12px) saturate(180%);
            -webkit-backdrop-filter: blur(12px) saturate(180%);
            border: 1px solid rgba(255,255,255,.18);
            transition: background 0.2s;
        }
        html[dark] .videoStats {
            background: rgba(34,34,34,0.7);
            border: 1px solid rgba(255,255,255,.18);
        }
        html:not([dark]) .videoStats {
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(0,0,0,.08);
        }
        .videoStats:hover {
            background: rgba(255,255,255,0.22);
        }
        .videoStats svg {
            width: 18px;
            height: 18px;
            fill: var(--yt-spec-text-primary, #030303);
        }
        html[dark] .videoStats svg {
            fill: #fff;
        }
        html:not([dark]) .videoStats svg {
            fill: #222;
        }

        .shortsStats {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 16px;
            margin-bottom: 16px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            cursor: pointer;
            background: rgba(255,255,255,0.15);
            box-shadow: 0 8px 32px rgba(0,0,0,.18);
            backdrop-filter: blur(12px) saturate(180%);
            -webkit-backdrop-filter: blur(12px) saturate(180%);
            border: 1px solid rgba(255,255,255,.18);
            transition: background 0.3s;
        }
        html[dark] .shortsStats {
            background: rgba(34,34,34,0.7);
            border: 1px solid rgba(255,255,255,.18);
        }
        html:not([dark]) .shortsStats {
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(0,0,0,.08);
        }
        .shortsStats:hover {
            background: rgba(255,255,255,0.22);
        }
        .shortsStats svg {
            width: 24px;
            height: 24px;
            fill: #222;
        }
        html[dark] .shortsStats svg {
            fill: #fff;
        }
        html:not([dark]) .shortsStats svg {
            fill: #222;
        }
        
        .stats-menu-container {
            position: relative;
            display: inline-block;
        }

        .stats-horizontal-menu {
            position: absolute;
            display: flex;
            left: 100%;
            top: 0;
            height: 100%;
            visibility: hidden;
            opacity: 0;
            transition: visibility 0s, opacity 0.2s linear;
            z-index: 100;
        }

        .stats-menu-container:hover .stats-horizontal-menu {
            visibility: visible;
            opacity: 1;
        }

        .stats-menu-button {
            margin-left: 8px;
            white-space: nowrap;
        }
        /* Modal styles */
        .stats-modal-overlay {
          position: fixed;
          top: 0; left: 0; right: 0; bottom: 0;
          background: rgba(0,0,0,0.7);
          z-index: 99999;
          display: flex;
          align-items: center;
          justify-content: center;
          animation: fadeInModal 0.2s;
          backdrop-filter: blur(18px) saturate(180%);
          -webkit-backdrop-filter: blur(18px) saturate(180%);
        }
        .stats-modal-content {
          background: rgba(34,34,34,0.95);
          border-radius: 18px;
          box-shadow: 0 8px 32px rgba(0,0,0,.2);
          max-width: 90vw;
          max-height: 90vh;
          overflow: auto;
          position: relative;
          padding: 24px 24px 16px 24px;
          display: flex;
          flex-direction: column;
          align-items: center;
          animation: scaleInModal 0.2s;
          border: 1px solid rgba(255,255,255,.2);
          backdrop-filter: blur(18px) saturate(180%);
          -webkit-backdrop-filter: blur(18px) saturate(180%);
        }
        html[dark] .stats-modal-content {
          background: rgba(34,34,34,0.95);
        }
        html:not([dark]) .stats-modal-content {
          background: #fff;
          color: #222;
        }
        .stats-modal-close {
          position: absolute;
          top: 12px;
          right: 18px;
          background: rgba(0,0,0,0.2);
          color: #fff;
          border: none;
          font-size: 28px;
          line-height: 1;
          width: 36px;
          height: 36px;
          border-radius: 50%;
          cursor: pointer;
          transition: background 0.2s;
          z-index: 2;
          display: flex;
          align-items: center;
          justify-content: center;
        }
        .stats-modal-close:hover {
          background: rgba(0,0,0,0.4);
          color: #ff4444;
        }
        .stats-modal-iframe {
          width: 80vw;
          height: 70vh;
          border-radius: 12px;
          margin-bottom: 12px;
          box-shadow: 0 8px 32px rgba(0,0,0,.2);
          background: #222;
          border: 1px solid rgba(255,255,255,.2);
        }
        .stats-modal-title {
          font-size: 18px;
          font-weight: 600;
          color: #fff;
          margin-bottom: 10px;
          text-align: center;
          text-shadow: 0 2px 8px rgba(0,0,0,0.15);
        }
        html:not([dark]) .stats-modal-title {
          color: #222;
        }
        @keyframes fadeInModal {
          from { opacity: 0; }
          to { opacity: 1; }
        }
        @keyframes scaleInModal {
          from { transform: scale(0.95); }
          to { transform: scale(1); }
        }
    `;

    // Settings state
    const SETTINGS_KEY = 'youtube_stats_button_enabled';
    let statsButtonEnabled = localStorage.getItem(SETTINGS_KEY) !== 'false';

    let previousUrl = location.href;
    let isChecking = false;
    let channelFeatures = {
      hasStreams: false,
      hasShorts: false
    };

    function addStyles() {
      if (!document.querySelector('#youtube-enhancer-styles')) {
        const styleElement = document.createElement('style');
        styleElement.id = 'youtube-enhancer-styles';
        styleElement.textContent = styles;
        document.head.appendChild(styleElement);
      }
    }

    function getCurrentVideoUrl() {
      const url = window.location.href;
      const urlParams = new URLSearchParams(window.location.search);
      const videoId = urlParams.get('v');

      if (videoId) {
        return `https://www.youtube.com/watch?v=${videoId}`;
      }

      const shortsMatch = url.match(/\/shorts\/([^?]+)/);
      if (shortsMatch) {
        return `https://www.youtube.com/shorts/${shortsMatch[1]}`;
      }

      return null;
    }

    function getChannelIdentifier() {
      const url = window.location.href;
      let identifier = '';

      if (url.includes('/channel/')) {
        identifier = url.split('/channel/')[1].split('/')[0];
      } else if (url.includes('/@')) {
        identifier = url.split('/@')[1].split('/')[0];
      }

      return identifier;
    }

    async function checkChannelTabs(url) {
      if (isChecking) return;
      isChecking = true;

      try {
        const response = await fetch(url, {
          credentials: 'same-origin'
        });

        if (!response.ok) {
          isChecking = false;
          return;
        }

        const html = await response.text();
        const match = html.match(/var ytInitialData = (.+?);<\/script>/);

        if (!match || !match[1]) {
          isChecking = false;
          return;
        }

        const data = JSON.parse(match[1]);
        const tabs = data?.contents?.twoColumnBrowseResultsRenderer?.tabs || [];

        let hasStreams = false;
        let hasShorts = false;

        tabs.forEach(tab => {
          const tabUrl = tab?.tabRenderer?.endpoint?.commandMetadata?.webCommandMetadata?.url;
          if (tabUrl) {
            if (/\/streams$/.test(tabUrl)) hasStreams = true;
            if (/\/shorts$/.test(tabUrl)) hasShorts = true;
          }
        });

        channelFeatures = {
          hasStreams: hasStreams,
          hasShorts: hasShorts
        };

        const existingMenu = document.querySelector('.stats-menu-container');
        if (existingMenu) {
          existingMenu.remove();
          createStatsMenu();
        }
      } catch (e) {
      } finally {
        isChecking = false;
      }
    }

    function isChannelPage(url) {
      return url.includes('youtube.com/') &&
        (url.includes('/channel/') || url.includes('/@')) &&
        !url.includes('/video/') &&
        !url.includes('/watch');
    }

    function checkUrlChange() {
      const currentUrl = location.href;
      if (currentUrl !== previousUrl) {
        previousUrl = currentUrl;
        if (isChannelPage(currentUrl)) {
          setTimeout(() => checkChannelTabs(currentUrl), 500);
        }
      }
    }

    function createStatsIcon(isShorts = false) {
      const icon = document.createElement('div');
      icon.className = isShorts ? 'shortsStats' : 'videoStats';

      const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
      svg.setAttribute("viewBox", "0 0 512 512");

      const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
      path.setAttribute("d", "M500 89c13.8-11 16-31.2 5-45s-31.2-16-45-5L319.4 151.5 211.2 70.4c-11.7-8.8-27.8-8.5-39.2 .6L12 199c-13.8 11-16 31.2-5 45s31.2 16 45 5L192.6 136.5l108.2 81.1c11.7 8.8 27.8 8.5 39.2-.6L500 89zM160 256l0 192c0 17.7 14.3 32 32 32s32-14.3 32-32l0-192c0-17.7-14.3-32-32-32s-32 14.3-32 32zM32 352l0 96c0 17.7 14.3 32 32 32s32-14.3 32-32l0-96c0-17.7-14.3-32-32-32s-32 14.3-32 32zm288-64c-17.7 0-32 14.3-32 32l0 128c0 17.7 14.3 32 32 32s32-14.3 32-32l0-128c0-17.7-14.3-32-32-32zm96-32l0 192c0 17.7 14.3 32 32 32s32-14.3 32-32l0-192c0-17.7-14.3-32-32-32s-32 14.3-32 32z");

      svg.appendChild(path);
      icon.appendChild(svg);

      icon.addEventListener('click', function (e) {
        e.preventDefault();
        e.stopPropagation();
        const videoUrl = getCurrentVideoUrl();
        if (videoUrl) {
          openStatsModal(`https://stats.afkarxyz.fun/?directVideo=${encodeURIComponent(videoUrl)}`, "Video Stats");
        }
      });

      return icon;
    }

    function insertIconForRegularVideo() {
      if (!statsButtonEnabled) return;
      const targetSelector = '#owner';
      const target = document.querySelector(targetSelector);

      if (target && !document.querySelector('.videoStats')) {
        const statsIcon = createStatsIcon();
        target.appendChild(statsIcon);
      }
    }

    function insertIconForShorts() {
      if (!statsButtonEnabled) return false;
      const likeButtonContainer = document.querySelector('ytd-reel-video-renderer[is-active] #like-button');

      if (likeButtonContainer && !document.querySelector('.shortsStats')) {
        const iconDiv = createStatsIcon(true);
        likeButtonContainer.parentNode.insertBefore(iconDiv, likeButtonContainer);
        return true;
      }
      return false;
    }

    function createButton(text, svgPath, viewBox, className, onClick) {
      const buttonViewModel = document.createElement('button-view-model');
      buttonViewModel.className = `yt-spec-button-view-model ${className}-view-model`;

      const button = document.createElement('button');
      button.className = `yt-spec-button-shape-next yt-spec-button-shape-next--outline yt-spec-button-shape-next--mono yt-spec-button-shape-next--size-m yt-spec-button-shape-next--enable-backdrop-filter-experiment ${className}-button`;
      button.setAttribute('aria-disabled', 'false');
      button.setAttribute('aria-label', text);
      button.style.display = 'flex';
      button.style.alignItems = 'center';
      button.style.justifyContent = 'center';
      button.style.gap = '8px';

      button.addEventListener('click', function (e) {
        e.preventDefault();
        e.stopPropagation();
        onClick();
      });

      const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
      svg.setAttribute("viewBox", viewBox);
      svg.style.width = "20px";
      svg.style.height = "20px";
      svg.style.fill = "currentColor";

      const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
      path.setAttribute("d", svgPath);
      svg.appendChild(path);

      const buttonText = document.createElement('div');
      buttonText.className = `yt-spec-button-shape-next__button-text-content ${className}-text`;
      buttonText.textContent = text;
      buttonText.style.display = 'flex';
      buttonText.style.alignItems = 'center';

      const touchFeedback = document.createElement('yt-touch-feedback-shape');
      touchFeedback.style.borderRadius = 'inherit';

      const touchFeedbackDiv = document.createElement('div');
      touchFeedbackDiv.className = 'yt-spec-touch-feedback-shape yt-spec-touch-feedback-shape--touch-response';
      touchFeedbackDiv.setAttribute('aria-hidden', 'true');

      const strokeDiv = document.createElement('div');
      strokeDiv.className = 'yt-spec-touch-feedback-shape__stroke';

      const fillDiv = document.createElement('div');
      fillDiv.className = 'yt-spec-touch-feedback-shape__fill';

      touchFeedbackDiv.appendChild(strokeDiv);
      touchFeedbackDiv.appendChild(fillDiv);
      touchFeedback.appendChild(touchFeedbackDiv);

      button.appendChild(svg);
      button.appendChild(buttonText);
      button.appendChild(touchFeedback);
      buttonViewModel.appendChild(button);

      return buttonViewModel;
    }

    function openStatsModal(url, titleText) {
      document.querySelectorAll('.stats-modal-overlay').forEach(m => m.remove());

      const overlay = document.createElement('div');
      overlay.className = 'stats-modal-overlay';

      const content = document.createElement('div');
      content.className = 'stats-modal-content';

      const closeBtn = document.createElement('button');
      closeBtn.className = 'stats-modal-close';
      closeBtn.innerHTML = '×';
      closeBtn.title = 'Close';
      closeBtn.onclick = () => overlay.remove();

      const title = document.createElement('div');
      title.className = 'stats-modal-title';
      title.textContent = titleText || 'Stats';

      const iframe = document.createElement('iframe');
      iframe.className = 'stats-modal-iframe';
      iframe.src = url;
      iframe.setAttribute('frameborder', '0');
      iframe.setAttribute('allowfullscreen', 'true');
      iframe.setAttribute('sandbox', 'allow-scripts allow-same-origin allow-popups');
      iframe.style.background = '#222';

      content.append(closeBtn, title, iframe);
      overlay.appendChild(content);

      overlay.onclick = e => {
        if (e.target === overlay) overlay.remove();
      };
      document.addEventListener('keydown', function escHandler(e) {
        if (e.key === 'Escape') {
          overlay.remove();
          document.removeEventListener('keydown', escHandler, true);
        }
      }, true);

      document.body.appendChild(overlay);
    }

    function createStatsMenu() {
      if (!statsButtonEnabled) return;
      if (document.querySelector('.stats-menu-container')) {
        return;
      }

      const containerDiv = document.createElement('div');
      containerDiv.className = 'yt-flexible-actions-view-model-wiz__action stats-menu-container';

      const mainButtonViewModel = document.createElement('button-view-model');
      mainButtonViewModel.className = 'yt-spec-button-view-model main-stats-view-model';

      const mainButton = document.createElement('button');
      mainButton.className = 'yt-spec-button-shape-next yt-spec-button-shape-next--outline yt-spec-button-shape-next--mono yt-spec-button-shape-next--size-m yt-spec-button-shape-next--enable-backdrop-filter-experiment main-stats-button';
      mainButton.setAttribute('aria-disabled', 'false');
      mainButton.setAttribute('aria-label', 'Stats');
      mainButton.style.display = 'flex';
      mainButton.style.alignItems = 'center';
      mainButton.style.justifyContent = 'center';
      mainButton.style.gap = '8px';

      const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
      svg.setAttribute("viewBox", "0 0 512 512");
      svg.style.width = "20px";
      svg.style.height = "20px";
      svg.style.fill = "currentColor";

      const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
      path.setAttribute("d", "M500 89c13.8-11 16-31.2 5-45s-31.2-16-45-5L319.4 151.5 211.2 70.4c-11.7-8.8-27.8-8.5-39.2 .6L12 199c-13.8 11-16 31.2-5 45s31.2 16 45 5L192.6 136.5l108.2 81.1c11.7 8.8 27.8 8.5 39.2-.6L500 89zM160 256l0 192c0 17.7 14.3 32 32 32s32-14.3 32-32l0-192c0-17.7-14.3-32-32-32s-32 14.3-32 32zM32 352l0 96c0 17.7 14.3 32 32 32s32-14.3 32-32l0-96c0-17.7-14.3-32-32-32s-32 14.3-32 32zm288-64c-17.7 0-32 14.3-32 32l0 128c0 17.7 14.3 32 32 32s32-14.3 32-32l0-128c0-17.7-14.3-32-32-32zm96-32l0 192c0 17.7 14.3 32 32 32s32-14.3 32-32l0-192c0-17.7-14.3-32-32-32s-32 14.3-32 32z");
      svg.appendChild(path);

      const buttonText = document.createElement('div');
      buttonText.className = 'yt-spec-button-shape-next__button-text-content main-stats-text';
      buttonText.textContent = 'Stats';
      buttonText.style.display = 'flex';
      buttonText.style.alignItems = 'center';

      const touchFeedback = document.createElement('yt-touch-feedback-shape');
      touchFeedback.style.borderRadius = 'inherit';

      const touchFeedbackDiv = document.createElement('div');
      touchFeedbackDiv.className = 'yt-spec-touch-feedback-shape yt-spec-touch-feedback-shape--touch-response';
      touchFeedbackDiv.setAttribute('aria-hidden', 'true');

      const strokeDiv = document.createElement('div');
      strokeDiv.className = 'yt-spec-touch-feedback-shape__stroke';

      const fillDiv = document.createElement('div');
      fillDiv.className = 'yt-spec-touch-feedback-shape__fill';

      touchFeedbackDiv.appendChild(strokeDiv);
      touchFeedbackDiv.appendChild(fillDiv);
      touchFeedback.appendChild(touchFeedbackDiv);

      mainButton.appendChild(svg);
      mainButton.appendChild(buttonText);
      mainButton.appendChild(touchFeedback);
      mainButtonViewModel.appendChild(mainButton);
      containerDiv.appendChild(mainButtonViewModel);

      const horizontalMenu = document.createElement('div');
      horizontalMenu.className = 'stats-horizontal-menu';

      const channelButtonContainer = document.createElement('div');
      channelButtonContainer.className = 'stats-menu-button channel-stats-container';

      const channelButton = createButton(
        'Channel',
        "M64 48c-8.8 0-16 7.2-16 16l0 288c0 8.8 7.2 16 16 16l512 0c8.8 0 16-7.2 16-16l0-288c0-8.8-7.2-16-16-16L64 48zM0 64C0 28.7 28.7 0 64 0L576 0c35.3 0 64 28.7 64 64l0 288c0 35.3-28.7 64-64 64L64 416c-35.3 0-64-28.7-64-64L0 64zM120 464l400 0c13.3 0 24 10.7 24 24s-10.7 24-24 24l-400 0c-13.3 0-24-10.7-24-24s10.7-24 24-24z",
        "0 0 640 512",
        'channel-stats',
        () => {
          const channelId = getChannelIdentifier();
          if (channelId) {
            openStatsModal(`https://stats.afkarxyz.fun/?directChannel=${channelId}`, "Channel Stats");
          }
        }
      );

      channelButtonContainer.appendChild(channelButton);
      horizontalMenu.appendChild(channelButtonContainer);

      if (channelFeatures.hasStreams) {
        const liveButtonContainer = document.createElement('div');
        liveButtonContainer.className = 'stats-menu-button live-stats-container';

        const liveButton = createButton(
          'Live',
          "M99.8 69.4c10.2 8.4 11.6 23.6 3.2 33.8C68.6 144.7 48 197.9 48 256s20.6 111.3 55 152.8c8.4 10.2 7 25.3-3.2 33.8s-25.3 7-33.8-3.2C24.8 389.6 0 325.7 0 256S24.8 122.4 66 72.6c8.4-10.2 23.6-11.6 33.8-3.2zm376.5 0c10.2-8.4 25.3-7 33.8 3.2c41.2 49.8 66 113.8 66 183.4s-24.8 133.6-66 183.4c-8.4 10.2-23.6 11.6-33.8 3.2s-11.6-23.6-3.2-33.8c34.3-41.5 55-94.7 55-152.8s-20.6-111.3-55-152.8c-8.4-10.2-7-25.3 3.2-33.8zM248 256a40 40 0 1 1 80 0 40 40 0 1 1 -80 0zm-61.1-78.5C170 199.2 160 226.4 160 256s10 56.8 26.9 78.5c8.1 10.5 6.3 25.5-4.2 33.7s-25.5 6.3-33.7-4.2c-23.2-29.8-37-67.3-37-108s13.8-78.2 37-108c8.1-10.5 23.2-12.3 33.7-4.2s12.3 23.2 4.2 33.7zM427 148c23.2 29.8 37 67.3 37 108s-13.8 78.2-37 108c-8.1 10.5-23.2 12.3-33.7 4.2s-12.3-23.2-4.2-33.7C406 312.8 416 285.6 416 256s-10-56.8-26.9-78.5c-8.1-10.5-6.3-25.5 4.2-33.7s25.5-6.3 33.7 4.2z",
          "0 0 576 512",
          'live-stats',
          () => {
            const channelId = getChannelIdentifier();
            if (channelId) {
              openStatsModal(`https://stats.afkarxyz.fun/?directStream=${channelId}`, "Live Stats");
            }
          }
        );

        liveButtonContainer.appendChild(liveButton);
        horizontalMenu.appendChild(liveButtonContainer);
      }

      if (channelFeatures.hasShorts) {
        const shortsButtonContainer = document.createElement('div');
        shortsButtonContainer.className = 'stats-menu-button shorts-stats-container';

        const shortsButton = createButton(
          'Shorts',
          "M80 48c-8.8 0-16 7.2-16 16l0 384c0 8.8 7.2 16 16 16l224 0c8.8 0 16-7.2 16-16l0-384c0-8.8-7.2-16-16-16L80 48zM16 64C16 28.7 44.7 0 80 0L304 0c35.3 0 64 28.7 64 64l0 384c0 35.3-28.7 64-64 64L80 512c-35.3 0-64-28.7-64-64L16 64zM160 400l64 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-64 0c-8.8 0-16-7.2-16-16s7.2-16 16-16z",
          "0 0 384 512",
          'shorts-stats',
          () => {
            const channelId = getChannelIdentifier();
            if (channelId) {
              openStatsModal(`https://stats.afkarxyz.fun/?directShorts=${channelId}`, "Shorts Stats");
            }
          }
        );

        shortsButtonContainer.appendChild(shortsButton);
        horizontalMenu.appendChild(shortsButtonContainer);
      }

      containerDiv.appendChild(horizontalMenu);

      const joinButton = document.querySelector('.yt-flexible-actions-view-model-wiz__action:not(.stats-menu-container)');
      if (joinButton) {
        joinButton.parentNode.appendChild(containerDiv);
      } else {
        const buttonContainer = document.querySelector('#subscribe-button + #buttons');
        if (buttonContainer) {
          buttonContainer.appendChild(containerDiv);
        }
      }

      return containerDiv;
    }

    function checkAndAddMenu() {
      if (!statsButtonEnabled) return;
      const joinButton = document.querySelector('.yt-flexible-actions-view-model-wiz__action:not(.stats-menu-container)');
      const statsMenu = document.querySelector('.stats-menu-container');

      if (joinButton && !statsMenu) {
        createStatsMenu();
      }
    }

    function checkAndInsertIcon() {
      if (!statsButtonEnabled) return;
      const isShorts = window.location.pathname.includes('/shorts/');
      if (isShorts) {
        const shortsObserver = new MutationObserver((_mutations, observer) => {
          if (insertIconForShorts()) {
            observer.disconnect();
          }
        });

        const shortsContainer = document.querySelector('ytd-shorts');
        if (shortsContainer) {
          shortsObserver.observe(shortsContainer, {
            childList: true,
            subtree: true
          });
          insertIconForShorts();
        }
      } else if (getCurrentVideoUrl()) {
        insertIconForRegularVideo();
      }
    }

    function addSettingsUI() {
      const section = document.querySelector('.ytp-plus-settings-section[data-section="experimental"]');
      if (!section || section.querySelector('.stats-button-settings-item')) return;

      const item = document.createElement('div');
      item.className = 'ytp-plus-settings-item stats-button-settings-item';
      item.innerHTML = `
        <div>
          <label class="ytp-plus-settings-item-label">Statistics Button</label>
          <div class="ytp-plus-settings-item-description">Show statistics button on videos and channel menu for quick access to statistics</div>
        </div>
        <input type="checkbox" class="ytp-plus-settings-checkbox" ${statsButtonEnabled ? 'checked' : ''}>
      `;
      section.appendChild(item);

      item.querySelector('input').addEventListener('change', e => {
        statsButtonEnabled = e.target.checked;
        localStorage.setItem(SETTINGS_KEY, statsButtonEnabled ? 'true' : 'false');
        // Remove all stats buttons and menus
        document.querySelectorAll('.videoStats,.shortsStats,.stats-menu-container').forEach(el => el.remove());
        if (statsButtonEnabled) {
          checkAndInsertIcon();
          checkAndAddMenu();
        }
      });
    }

    // Observe settings modal for experimental section
    const settingsObserver = new MutationObserver(mutations => {
      for (const { addedNodes } of mutations) {
        for (const node of addedNodes) {
          if (node.classList?.contains('ytp-plus-settings-modal')) {
            setTimeout(addSettingsUI, 50);
          }
        }
      }
      if (document.querySelector('.ytp-plus-settings-nav-item[data-section="experimental"].active')) {
        setTimeout(addSettingsUI, 50);
      }
    });
    settingsObserver.observe(document.body, { childList: true, subtree: true });

    document.addEventListener('click', e => {
      if (e.target.classList?.contains('ytp-plus-settings-nav-item') &&
        e.target.dataset.section === 'experimental') {
        setTimeout(addSettingsUI, 50);
      }
    }, true);

    function init() {
      addStyles();
      if (statsButtonEnabled) {
        checkAndInsertIcon();
        checkAndAddMenu();
      }

      history.pushState = (function (f) {
        return function () {
          const result = f.apply(this, arguments);
          checkUrlChange();
          return result;
        };
      })(history.pushState);

      history.replaceState = (function (f) {
        return function () {
          const result = f.apply(this, arguments);
          checkUrlChange();
          return result;
        };
      })(history.replaceState);

      window.addEventListener('popstate', checkUrlChange);

      if (isChannelPage(location.href)) {
        checkChannelTabs(location.href);
      }
    }

    const observer = new MutationObserver((mutations) => {
      for (let mutation of mutations) {
        if (mutation.type === 'childList') {
          if (statsButtonEnabled) {
            checkAndInsertIcon();
            checkAndAddMenu();
          }
        }
      }
    });

    observer.observe(document.body, { childList: true, subtree: true });

    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', init);
    } else {
      init();
    }

    window.addEventListener('yt-navigate-finish', () => {
      if (statsButtonEnabled) {
        checkAndInsertIcon();
        checkAndAddMenu();
        if (isChannelPage(location.href)) {
          checkChannelTabs(location.href);
        }
      }
    });

    document.addEventListener('yt-action', function (event) {
      if (event.detail && event.detail.actionName === 'yt-reload-continuation-items-command') {
        if (statsButtonEnabled) {
          checkAndInsertIcon();
          checkAndAddMenu();
        }
      }
    });
  })();

  // count
  (function () {
    'use strict';

    // Enhanced configuration with better defaults
    const CONFIG = {
      OPTIONS: ['subscribers', 'views', 'videos'],
      FONT_LINK: "https://fonts.googleapis.com/css2?family=Rubik:wght@400;700&display=swap",
      STATS_API_URL: 'https://api.livecounts.io/youtube-live-subscriber-counter/stats/',
      DEFAULT_UPDATE_INTERVAL: 2000,
      DEFAULT_OVERLAY_OPACITY: 0.75,
      MAX_RETRIES: 3,
      CACHE_DURATION: 300000, // 5 minutes
      DEBOUNCE_DELAY: 100,
      STORAGE_KEY: 'youtube_channel_stats_settings'
    };

    // Global state management
    const state = {
      overlay: null,
      isUpdating: false,
      intervalId: null,
      currentChannelName: null,
      enabled: localStorage.getItem(CONFIG.STORAGE_KEY) !== 'false',
      updateInterval: parseInt(localStorage.getItem('youtubeEnhancerInterval')) || CONFIG.DEFAULT_UPDATE_INTERVAL,
      overlayOpacity: parseFloat(localStorage.getItem('youtubeEnhancerOpacity')) || CONFIG.DEFAULT_OVERLAY_OPACITY,
      lastSuccessfulStats: new Map(),
      previousStats: new Map(),
      previousUrl: location.href,
      isChecking: false
    };

    // Utility functions
    const utils = {
      log: (message, ...args) => {
        console.log(`[YouTube Enhancer] ${message}`, ...args);
      },

      warn: (message, ...args) => {
        console.warn(`[YouTube Enhancer] ${message}`, ...args);
      },

      error: (message, ...args) => {
        console.error(`[YouTube Enhancer] ${message}`, ...args);
      },

      debounce: (func, wait) => {
        let timeout;
        return function executedFunction(...args) {
          const later = () => {
            clearTimeout(timeout);
            func(...args);
          };
          clearTimeout(timeout);
          timeout = setTimeout(later, wait);
        };
      }
    };

    const OPTIONS = CONFIG.OPTIONS;
    const FONT_LINK = CONFIG.FONT_LINK;
    const STATS_API_URL = CONFIG.STATS_API_URL;
    const DEFAULT_UPDATE_INTERVAL = CONFIG.DEFAULT_UPDATE_INTERVAL;
    const DEFAULT_OVERLAY_OPACITY = CONFIG.DEFAULT_OVERLAY_OPACITY;

    let { overlay, isUpdating, intervalId, currentChannelName, updateInterval, overlayOpacity,
      lastSuccessfulStats, previousStats, previousUrl, isChecking } = state;

    async function fetchChannel(url) {
      if (state.isChecking) return null;
      state.isChecking = true;

      try {
        const response = await fetch(url, {
          credentials: 'same-origin'
        });

        if (!response.ok) return null;

        const html = await response.text();
        const match = html.match(/var ytInitialData = (.+?);<\/script>/);
        return match && match[1] ? JSON.parse(match[1]) : null;
      } catch (error) {
        utils.warn('Failed to fetch channel data:', error);
        return null;
      } finally {
        state.isChecking = false;
      }
    }

    async function getChannelInfo(url) {
      const data = await fetchChannel(url);
      if (!data) return null;

      try {
        const channelName = data?.metadata?.channelMetadataRenderer?.title || "Unknown";
        const channelId = data?.metadata?.channelMetadataRenderer?.externalId || null;

        return { channelName, channelId };
      } catch (e) {
        return null;
      }
    }

    function isChannelPageUrl(url) {
      return url.includes('youtube.com/') &&
        (url.includes('/channel/') || url.includes('/@')) &&
        !url.includes('/video/') &&
        !url.includes('/watch');
    }

    function checkUrlChange() {
      const currentUrl = location.href;
      if (currentUrl !== state.previousUrl) {
        state.previousUrl = currentUrl;
        if (isChannelPageUrl(currentUrl)) {
          setTimeout(() => getChannelInfo(currentUrl), 500);
        }
      }
    }

    history.pushState = (function (f) {
      return function () {
        f.apply(this, arguments);
        checkUrlChange();
      };
    })(history.pushState);

    history.replaceState = (function (f) {
      return function () {
        f.apply(this, arguments);
        checkUrlChange();
      };
    })(history.replaceState);

    window.addEventListener('popstate', checkUrlChange);
    setInterval(checkUrlChange, 1000);

    function init() {
      try {
        utils.log('Initializing YouTube Enhancer v1.6');

        loadFonts();
        initializeLocalStorage();
        addStyles();
        if (state.enabled) {
          observePageChanges();
          addNavigationListener();

          if (isChannelPageUrl(location.href)) {
            getChannelInfo(location.href);
          }
        }

        utils.log('YouTube Enhancer initialized successfully');
      } catch (error) {
        utils.error('Failed to initialize YouTube Enhancer:', error);
      }
    }

    function loadFonts() {
      const fontLink = document.createElement("link");
      fontLink.rel = "stylesheet";
      fontLink.href = FONT_LINK;
      document.head.appendChild(fontLink);
    }

    function initializeLocalStorage() {
      OPTIONS.forEach(option => {
        if (localStorage.getItem(`show-${option}`) === null) {
          localStorage.setItem(`show-${option}`, 'true');
        }
      });
    }

    function addStyles() {
      const style = document.createElement('style');
      style.textContent = `
            .channel-banner-overlay{position:absolute;top:0;left:0;width:100%;height:100%;border-radius:12px;z-index:10;display:flex;justify-content:space-around;align-items:center;color:#fff;font-family:var(--stats-font-family,'Rubik',sans-serif);font-size:var(--stats-font-size,24px);box-sizing:border-box;transition:background-color .3s ease;backdrop-filter:blur(2px)}
        .settings-button{position:absolute;top:8px;right:8px;width:24px;height:24px;cursor:pointer;z-index:2;transition:transform .2s;opacity:.7}
        .settings-button:hover{transform:scale(1.1);opacity:1}
        .settings-menu{position:absolute;top:35px;right:8px;background:rgba(0,0,0,.95);padding:12px;border-radius:8px;z-index:10;display:none;backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.1);min-width:320px}
        .settings-menu.show{display:block}
        .stat-container{display:flex;flex-direction:column;align-items:center;justify-content:center;visibility:hidden;width:33%;height:100%;padding:0 1rem}
        .number-container{display:flex;align-items:center;justify-content:center;font-weight:700;min-height:3rem}
        .label-container{display:flex;align-items:center;margin-top:.5rem;font-size:1.2rem;opacity:.9}
        .label-container svg{width:1.5rem;height:1.5rem;margin-right:.5rem}
        .difference{font-size:1.8rem;height:2rem;margin-bottom:.5rem;transition:opacity .3s}
        .spinner-container{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;justify-content:center;align-items:center}
        .loading-spinner{animation:spin 1s linear infinite}
        @keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
        @media(max-width:768px){.channel-banner-overlay{flex-direction:column;padding:8px;min-height:160px}.settings-menu{width:280px;right:4px}}
        .setting-group{margin-bottom:12px}
        .setting-group:last-child{margin-bottom:0}
        .setting-group label{display:block;margin-bottom:4px;font-weight:600;color:#fff;font-size:14px}
        .setting-group input[type="range"]{width:100%;margin:4px 0}
        .setting-group input[type="checkbox"]{margin-right:8px}
        .setting-value{color:#aaa;font-size:12px;margin-top:2px}
        `;
      document.head.appendChild(style);
    }

    function createSettingsButton() {
      const button = document.createElement('div');
      button.className = 'settings-button';

      const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
      svg.setAttribute("xmlns", "http://www.w3.org/2000/svg");
      svg.setAttribute("viewBox", "0 0 512 512");

      const path = document.createElementNS("http://www.w3.org/2000/svg", "path");
      path.setAttribute("fill", "white");
      path.setAttribute("d", "M495.9 166.6c3.2 8.7 .5 18.4-6.4 24.6l-43.3 39.4c1.1 8.3 1.7 16.8 1.7 25.4s-.6 17.1-1.7 25.4l43.3 39.4c6.9 6.2 9.6 15.9 6.4 24.6c-4.4 11.9-9.7 23.3-15.8 34.3l-4.7 8.1c-6.6 11-14 21.4-22.1 31.2c-5.9 7.2-15.7 9.6-24.5 6.8l-55.7-17.7c-13.4 10.3-28.2 18.9-44 25.4l-12.5 57.1c-2 9.1-9 16.3-18.2 17.8c-13.8 2.3-28 3.5-42.5 3.5s-28.7-1.2-42.5-3.5c-9.2-1.5-16.2-8.7-18.2-17.8l-12.5-57.1c-15.8-6.5-30.6-15.1-44-25.4L83.1 425.9c-8.8 2.8-18.6 .3-24.5-6.8c-8.1-9.8-15.5-20.2-22.1-31.2l-4.7-8.1c-6.1-11-11.4-22.4-15.8-34.3c-3.2-8.7-.5-18.4 6.4-24.6l43.3-39.4C64.6 273.1 64 264.6 64 256s.6-17.1 1.7-25.4L22.4 191.2c-6.9-6.2-9.6-15.9-6.4-24.6c4.4-11.9 9.7-23.3 15.8-34.3l4.7-8.1c6.6-11 14-21.4 22.1-31.2c5.9-7.2 15.7-9.6 24.5-6.8l55.7 17.7c13.4-10.3 28.2-18.9 44-25.4l12.5-57.1c2-9.1 9-16.3 18.2-17.8C227.3 1.2 241.5 0 256 0s28.7 1.2 42.5 3.5c9.2 1.5 16.2 8.7 18.2 17.8l12.5 57.1c15.8 6.5 30.6 15.1 44 25.4l55.7-17.7c8.8-2.8 18.6-.3 24.5 6.8c8.1 9.8 15.5 20.2 22.1 31.2l4.7 8.1c6.1 11 11.4 22.4 15.8 34.3zM256 336a80 80 0 1 0 0-160 80 80 0 1 0 0 160z");

      svg.appendChild(path);
      button.appendChild(svg);

      return button;
    }

    function createSettingsMenu() {
      const menu = document.createElement('div');
      menu.className = 'settings-menu';
      menu.style.gap = '15px';
      menu.style.width = '360px';

      const displaySection = createDisplaySection();
      const controlsSection = createControlsSection();

      menu.appendChild(displaySection);
      menu.appendChild(controlsSection);

      return menu;
    }

    function createDisplaySection() {
      const displaySection = document.createElement('div');
      displaySection.style.flex = '1';

      const displayLabel = document.createElement('label');
      displayLabel.textContent = 'Display Options';
      displayLabel.style.marginBottom = '10px';
      displayLabel.style.display = 'block';
      displayLabel.style.fontSize = '16px';
      displayLabel.style.fontWeight = 'bold';
      displaySection.appendChild(displayLabel);

      OPTIONS.forEach(option => {
        const checkboxContainer = document.createElement('div');
        checkboxContainer.style.display = 'flex';
        checkboxContainer.style.alignItems = 'center';
        checkboxContainer.style.marginTop = '5px';

        const checkbox = document.createElement('input');
        checkbox.type = 'checkbox';
        checkbox.id = `show-${option}`;
        checkbox.checked = localStorage.getItem(`show-${option}`) !== 'false';
        checkbox.style.marginRight = '8px';
        checkbox.style.cursor = 'pointer';

        const checkboxLabel = document.createElement('label');
        checkboxLabel.htmlFor = `show-${option}`;
        checkboxLabel.textContent = option.charAt(0).toUpperCase() + option.slice(1);
        checkboxLabel.style.cursor = 'pointer';
        checkboxLabel.style.color = 'white';
        checkboxLabel.style.fontSize = '14px';

        checkbox.addEventListener('change', () => {
          localStorage.setItem(`show-${option}`, checkbox.checked);
          updateDisplayState();
        });

        checkboxContainer.appendChild(checkbox);
        checkboxContainer.appendChild(checkboxLabel);
        displaySection.appendChild(checkboxContainer);
      });

      return displaySection;
    }

    function createControlsSection() {
      const controlsSection = document.createElement('div');
      controlsSection.style.flex = '1';

      // Font family selector
      const fontLabel = document.createElement('label');
      fontLabel.textContent = 'Font Family';
      fontLabel.style.display = 'block';
      fontLabel.style.marginBottom = '5px';
      fontLabel.style.fontSize = '16px';
      fontLabel.style.fontWeight = 'bold';

      const fontSelect = document.createElement('select');
      fontSelect.className = 'font-family-select';
      fontSelect.style.width = '100%';
      fontSelect.style.marginBottom = '10px';
      const fonts = [
        { name: 'Rubik', value: 'Rubik, sans-serif' },
        { name: 'Impact', value: 'Impact, Charcoal, sans-serif' },
        { name: 'Verdana', value: 'Verdana, Geneva, sans-serif' },
        { name: 'Tahoma', value: 'Tahoma, Geneva, sans-serif' },
      ];
      const savedFont = localStorage.getItem('youtubeEnhancerFontFamily') || 'Rubik, sans-serif';
      fonts.forEach(f => {
        const opt = document.createElement('option');
        opt.value = f.value;
        opt.textContent = f.name;
        if (f.value === savedFont) opt.selected = true;
        fontSelect.appendChild(opt);
      });

      fontSelect.addEventListener('change', (e) => {
        localStorage.setItem('youtubeEnhancerFontFamily', e.target.value);
        if (state.overlay) {
          // Only update .subscribers-number, .views-number, .videos-number
          state.overlay.querySelectorAll('.subscribers-number,.views-number,.videos-number').forEach(el => {
            el.style.fontFamily = e.target.value;
          });
        }
      });

      // Font size slider
      const fontSizeLabel = document.createElement('label');
      fontSizeLabel.textContent = 'Font Size';
      fontSizeLabel.style.display = 'block';
      fontSizeLabel.style.marginBottom = '5px';
      fontSizeLabel.style.fontSize = '16px';
      fontSizeLabel.style.fontWeight = 'bold';

      const fontSizeSlider = document.createElement('input');
      fontSizeSlider.type = 'range';
      fontSizeSlider.min = '16';
      fontSizeSlider.max = '72';
      fontSizeSlider.value = localStorage.getItem('youtubeEnhancerFontSize') || '24';
      fontSizeSlider.step = '1';
      fontSizeSlider.className = 'font-size-slider';

      const fontSizeValue = document.createElement('div');
      fontSizeValue.className = 'font-size-value';
      fontSizeValue.textContent = `${fontSizeSlider.value}px`;
      fontSizeValue.style.fontSize = '14px';
      fontSizeValue.style.marginBottom = '15px';

      fontSizeSlider.addEventListener('input', (e) => {
        fontSizeValue.textContent = `${e.target.value}px`;
        localStorage.setItem('youtubeEnhancerFontSize', e.target.value);
        if (state.overlay) {
          // Only update .subscribers-number, .views-number, .videos-number
          state.overlay.querySelectorAll('.subscribers-number,.views-number,.videos-number').forEach(el => {
            el.style.fontSize = `${e.target.value}px`;
          });
        }
      });

      // ...existing code...
      const intervalLabel = document.createElement('label');
      intervalLabel.textContent = 'Update Interval';
      intervalLabel.style.display = 'block';
      intervalLabel.style.marginBottom = '5px';
      intervalLabel.style.fontSize = '16px';
      intervalLabel.style.fontWeight = 'bold';

      const intervalSlider = document.createElement('input');
      intervalSlider.type = 'range';
      intervalSlider.min = '2';
      intervalSlider.max = '10';
      intervalSlider.value = state.updateInterval / 1000;
      intervalSlider.step = '1';
      intervalSlider.className = 'interval-slider';

      const intervalValue = document.createElement('div');
      intervalValue.className = 'interval-value';
      intervalValue.textContent = `${intervalSlider.value}s`;
      intervalValue.style.marginBottom = '15px';
      intervalValue.style.fontSize = '14px';

      intervalSlider.addEventListener('input', (e) => {
        const newInterval = parseInt(e.target.value) * 1000;
        intervalValue.textContent = `${e.target.value}s`;
        state.updateInterval = newInterval;
        localStorage.setItem('youtubeEnhancerInterval', newInterval);

        if (state.intervalId) {
          clearInterval(state.intervalId);
          state.intervalId = setInterval(() => {
            updateOverlayContent(state.overlay, state.currentChannelName);
          }, newInterval);
        }
      });

      const opacityLabel = document.createElement('label');
      opacityLabel.textContent = 'Background Opacity';
      opacityLabel.style.display = 'block';
      opacityLabel.style.marginBottom = '5px';
      opacityLabel.style.fontSize = '16px';
      opacityLabel.style.fontWeight = 'bold';

      const opacitySlider = document.createElement('input');
      opacitySlider.type = 'range';
      opacitySlider.min = '50';
      opacitySlider.max = '90';
      opacitySlider.value = state.overlayOpacity * 100;
      opacitySlider.step = '5';
      opacitySlider.className = 'opacity-slider';

      const opacityValue = document.createElement('div');
      opacityValue.className = 'opacity-value';
      opacityValue.textContent = `${opacitySlider.value}%`;
      opacityValue.style.fontSize = '14px';

      opacitySlider.addEventListener('input', (e) => {
        const newOpacity = parseInt(e.target.value) / 100;
        opacityValue.textContent = `${e.target.value}%`;
        state.overlayOpacity = newOpacity;
        localStorage.setItem('youtubeEnhancerOpacity', newOpacity);

        if (state.overlay) {
          state.overlay.style.backgroundColor = `rgba(0, 0, 0, ${newOpacity})`;
        }
      });

      controlsSection.appendChild(fontLabel);
      controlsSection.appendChild(fontSelect);
      controlsSection.appendChild(fontSizeLabel);
      controlsSection.appendChild(fontSizeSlider);
      controlsSection.appendChild(fontSizeValue);
      controlsSection.appendChild(intervalLabel);
      controlsSection.appendChild(intervalSlider);
      controlsSection.appendChild(intervalValue);
      controlsSection.appendChild(opacityLabel);
      controlsSection.appendChild(opacitySlider);
      controlsSection.appendChild(opacityValue);

      return controlsSection;
    }

    function createSpinner() {
      const spinnerContainer = document.createElement('div');
      spinnerContainer.style.position = 'absolute';
      spinnerContainer.style.top = '0';
      spinnerContainer.style.left = '0';
      spinnerContainer.style.width = '100%';
      spinnerContainer.style.height = '100%';
      spinnerContainer.style.display = 'flex';
      spinnerContainer.style.justifyContent = 'center';
      spinnerContainer.style.alignItems = 'center';
      spinnerContainer.classList.add('spinner-container');

      const spinner = document.createElementNS("http://www.w3.org/2000/svg", "svg");
      spinner.setAttribute("viewBox", "0 0 512 512");
      spinner.setAttribute("width", "64");
      spinner.setAttribute("height", "64");
      spinner.classList.add('loading-spinner');
      spinner.style.animation = "spin 1s linear infinite";

      const secondaryPath = document.createElementNS("http://www.w3.org/2000/svg", "path");
      secondaryPath.setAttribute("d", "M0 256C0 114.9 114.1 .5 255.1 0C237.9 .5 224 14.6 224 32c0 17.7 14.3 32 32 32C150 64 64 150 64 256s86 192 192 192c69.7 0 130.7-37.1 164.5-92.6c-3 6.6-3.3 14.8-1 22.2c1.2 3.7 3 7.2 5.4 10.3c1.2 1.5 2.6 3 4.1 4.3c.8 .7 1.6 1.3 2.4 1.9c.4 .3 .8 .6 1.3 .9s.9 .6 1.3 .8c5 2.9 10.6 4.3 16 4.3c11 0 21.8-5.7 27.7-16c-44.3 76.5-127 128-221.7 128C114.6 512 0 397.4 0 256z");
      secondaryPath.style.opacity = "0.4";
      secondaryPath.style.fill = "white";

      const primaryPath = document.createElementNS("http://www.w3.org/2000/svg", "path");
      primaryPath.setAttribute("d",
        "M224 32c0-17.7 14.3-32 32-32C397.4 0 512 114.6 512 256c0 46.6-12.5 90.4-34.3 128c-8.8 15.3-28.4 20.5-43.7 11.7s-20.5-28.4-11.7-43.7c16.3-28.2 25.7-61 25.7-96c0-106-86-192-192-192c-17.7 0-32-14.3-32-32z");
      primaryPath.style.fill = "white";

      spinner.appendChild(secondaryPath);
      spinner.appendChild(primaryPath);
      spinnerContainer.appendChild(spinner);
      return spinnerContainer;
    }

    function createSVGIcon(path) {
      const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
      svg.setAttribute("viewBox", "0 0 640 512");
      svg.setAttribute("width", "2rem");
      svg.setAttribute("height", "2rem");
      svg.style.marginRight = "0.5rem";
      svg.style.display = "none";

      const svgPath = document.createElementNS("http://www.w3.org/2000/svg", "path");
      svgPath.setAttribute("d", path);
      svgPath.setAttribute("fill", "white");

      svg.appendChild(svgPath);
      return svg;
    }

    function createStatContainer(className, iconPath) {
      const container = document.createElement('div');
      Object.assign(container.style, {
        display: 'flex',
        flexDirection: 'column',
        alignItems: 'center',
        justifyContent: 'center',
        visibility: 'hidden',
        width: '33%',
        height: '100%',
        padding: '0 1rem'
      });

      const numberContainer = document.createElement('div');
      Object.assign(numberContainer.style, {
        display: 'flex',
        flexDirection: 'column',
        alignItems: 'center',
        justifyContent: 'center'
      });

      const differenceElement = document.createElement('div');
      differenceElement.classList.add(`${className}-difference`);
      Object.assign(differenceElement.style, {
        fontSize: '2.5rem',
        height: '2.5rem',
        marginBottom: '1rem'
      });

      const digitContainer = createNumberContainer();
      digitContainer.classList.add(`${className}-number`);
      Object.assign(digitContainer.style, {
        fontSize: (localStorage.getItem('youtubeEnhancerFontSize') || '24') + 'px',
        fontWeight: 'bold',
        lineHeight: '1',
        height: '4rem',
        fontFamily: localStorage.getItem('youtubeEnhancerFontFamily') || 'Rubik, sans-serif',
        letterSpacing: '0.025em'
      });

      numberContainer.appendChild(differenceElement);
      numberContainer.appendChild(digitContainer);

      const labelContainer = document.createElement('div');
      Object.assign(labelContainer.style, {
        display: 'flex',
        alignItems: 'center',
        marginTop: '0.5rem'
      });

      const icon = createSVGIcon(iconPath);
      Object.assign(icon.style, {
        width: '2rem',
        height: '2rem',
        marginRight: '0.75rem'
      });

      const labelElement = document.createElement('div');
      labelElement.classList.add(`${className}-label`);
      labelElement.style.fontSize = '2rem';

      labelContainer.appendChild(icon);
      labelContainer.appendChild(labelElement);

      container.appendChild(numberContainer);
      container.appendChild(labelContainer);

      return container;
    }

    function createOverlay(bannerElement) {
      clearExistingOverlay();

      if (!bannerElement) return null;

      const overlay = document.createElement('div');
      overlay.classList.add('channel-banner-overlay');
      Object.assign(overlay.style, {
        position: 'absolute',
        top: '0',
        left: '0',
        width: '100%',
        height: '100%',
        backgroundColor: `rgba(0, 0, 0, ${state.overlayOpacity})`,
        borderRadius: '15px',
        zIndex: '10',
        display: 'flex',
        justifyContent: 'space-around',
        alignItems: 'center',
        color: 'white',
        fontFamily: localStorage.getItem('youtubeEnhancerFontFamily') || 'Rubik, sans-serif',
        fontSize: (localStorage.getItem('youtubeEnhancerFontSize') || '24') + 'px',
        boxSizing: 'border-box',
        transition: 'background-color 0.3s ease'
      });

      // Accessibility attributes
      overlay.setAttribute('role', 'region');
      overlay.setAttribute('aria-label', 'YouTube Channel Statistics Overlay');
      overlay.setAttribute('tabindex', '-1');

      // Responsive design for mobile
      if (window.innerWidth <= 768) {
        overlay.style.flexDirection = 'column';
        overlay.style.padding = '10px';
        overlay.style.minHeight = '200px';
      }

      const settingsButton = createSettingsButton();
      settingsButton.setAttribute('tabindex', '0');
      settingsButton.setAttribute('aria-label', 'Open settings menu');
      settingsButton.setAttribute('role', 'button');

      const settingsMenu = createSettingsMenu();
      settingsMenu.setAttribute('aria-label', 'Statistics display settings');
      settingsMenu.setAttribute('role', 'dialog');

      overlay.appendChild(settingsButton);
      overlay.appendChild(settingsMenu);

      // Enhanced event handling with keyboard support
      const toggleMenu = (show) => {
        settingsMenu.classList.toggle('show', show);
        settingsButton.setAttribute('aria-expanded', show);
        if (show) {
          settingsMenu.focus();
        }
      };

      settingsButton.addEventListener('click', (e) => {
        e.stopPropagation();
        toggleMenu(!settingsMenu.classList.contains('show'));
      });

      settingsButton.addEventListener('keydown', (e) => {
        if (e.key === 'Enter' || e.key === ' ') {
          e.preventDefault();
          toggleMenu(!settingsMenu.classList.contains('show'));
        }
      });

      // Close menu when clicking outside or pressing escape
      document.addEventListener('click', (e) => {
        if (!settingsMenu.contains(e.target) && !settingsButton.contains(e.target)) {
          toggleMenu(false);
        }
      });

      document.addEventListener('keydown', (e) => {
        if (e.key === 'Escape' && settingsMenu.classList.contains('show')) {
          toggleMenu(false);
          settingsButton.focus();
        }
      });

      const spinner = createSpinner();
      overlay.appendChild(spinner);

      const subscribersElement = createStatContainer('subscribers', "M144 160c-44.2 0-80-35.8-80-80S99.8 0 144 0s80 35.8 80 80s-35.8 80-80 80zm368 0c-44.2 0-80-35.8-80-80s35.8-80 80-80s80 35.8 80 80s-35.8 80-80 80zM0 298.7C0 239.8 47.8 192 106.7 192h42.7c15.9 0 31 3.5 44.6 9.7c-1.3 7.2-1.9 14.7-1.9 22.3c0 38.2 16.8 72.5 43.3 96c-.2 0-.4 0-.7 0H21.3C9.6 320 0 310.4 0 298.7zM405.3 320c-.2 0-.4 0-.7 0c26.6-23.5 43.3-57.8 43.3-96c0-7.6-.7-15-1.9-22.3c13.6-6.3 28.7-9.7 44.6-9.7h42.7C592.2 192 640 239.8 640 298.7c0 11.8-9.6 21.3-21.3 21.3H405.3zM416 224c0 53-43 96-96 96s-96-43-96-96s43-96 96-96s96 43 96 96zM128 485.3C128 411.7 187.7 352 261.3 352H378.7C452.3 352 512 411.7 512 485.3c0 14.7-11.9 26.7-26.7 26.7H154.7c-14.7 0-26.7-11.9-26.7-26.7z");
      const viewsElement = createStatContainer('views', "M288 32c-80.8 0-145.5 36.8-192.6 80.6C48.6 156 17.3 208 2.5 243.7c-3.3 7.9-3.3 16.7 0 24.6C17.3 304 48.6 356 95.4 399.4C142.5 443.2 207.2 480 288 480s145.5-36.8 192.6-80.6c46.8-43.5 78.1-95.4 93-131.1c3.3-7.9 3.3-16.7 0-24.6c-14.9-35.7-46.2-87.7-93-131.1C433.5 68.8 368.8 32 288 32zM144 256a144 144 0 1 1 288 0 144 144 0 1 1 -288 0zm144-64c0 35.3-28.7 64-64 64c-7.1 0-13.9-1.2-20.3-3.3c-5.5-1.8-11.9 1.6-11.7 7.4c.3 6.9 1.3 13.8 3.2 20.7c13.7 51.2 66.4 81.6 117.6 67.9s81.6-66.4 67.9-117.6c-11.1-41.5-47.8-69.4-88.6-71.1c-5.8-.2-9.2 6.1-7.4 11.7c2.1 6.4 3.3 13.2 3.3 20.3z");
      const videosElement = createStatContainer('videos', "M0 128C0 92.7 28.7 64 64 64H320c35.3 0 64 28.7 64 64V384c0 35.3-28.7 64-64 64H64c-35.3 0-64-28.7-64-64V128zM559.1 99.8c10.4 5.6 16.9 16.4 16.9 28.2V384c0 11.8-6.5 22.6-16.9 28.2s-23 5-32.9-1.6l-96-64L416 337.1V320 192 174.9l14.2-9.5 96-64c9.8-6.5 22.4-7.2 32.9-1.6z");

      overlay.appendChild(subscribersElement);
      overlay.appendChild(viewsElement);
      overlay.appendChild(videosElement);

      bannerElement.appendChild(overlay);
      updateDisplayState();
      return overlay;
    }

    function fetchWithGM(url, headers = {}) {
      return new Promise((resolve, reject) => {
        GM_xmlhttpRequest({
          method: "GET",
          url: url,
          headers: headers,
          onload: function (response) {
            if (response.status === 200) {
              resolve(JSON.parse(response.responseText));
            } else {
              reject(new Error(`Failed to fetch: ${response.status}`));
            }
          },
          onerror: function (error) {
            reject(error);
          },
        });
      });
    }

    async function fetchChannelId(channelName) {
      // Try meta tag first
      const metaTag = document.querySelector('meta[itemprop="channelId"]');
      if (metaTag && metaTag.content) return metaTag.content;

      // Try URL pattern
      const urlMatch = window.location.href.match(/channel\/(UC[\w-]+)/);
      if (urlMatch && urlMatch[1]) return urlMatch[1];

      // Try ytInitialData
      const channelInfo = await getChannelInfo(window.location.href);
      if (channelInfo && channelInfo.channelId) return channelInfo.channelId;

      throw new Error('Could not determine channel ID');
    }

    async function fetchChannelStats(channelId) {
      try {
        let retries = CONFIG.MAX_RETRIES;
        let lastError;

        while (retries > 0) {
          try {
            const stats = await fetchWithGM(
              `${STATS_API_URL}${channelId}`,
              {
                origin: "https://livecounts.io",
                referer: "https://livecounts.io/",
              }
            );

            // Validate response structure
            if (!stats || typeof stats.followerCount === 'undefined') {
              throw new Error('Invalid stats response structure');
            }

            // Cache successful response
            state.lastSuccessfulStats.set(channelId, {
              ...stats,
              timestamp: Date.now()
            });
            return stats;
          } catch (e) {
            lastError = e;
            retries--;
            if (retries > 0) {
              // Exponential backoff for retries
              await new Promise(resolve => setTimeout(resolve, 1000 * (CONFIG.MAX_RETRIES - retries + 1)));
            }
          }
        }

        // Try to use cached data if available and recent (within 5 minutes)
        if (state.lastSuccessfulStats.has(channelId)) {
          const cached = state.lastSuccessfulStats.get(channelId);
          const isRecent = Date.now() - cached.timestamp < CONFIG.CACHE_DURATION;
          if (isRecent) {
            utils.log('Using cached stats for channel:', channelId);
            return cached;
          }
        }

        // Fallback: try to extract subscriber count from page
        const fallbackStats = {
          followerCount: 0,
          bottomOdos: [0, 0],
          error: true,
          timestamp: Date.now()
        };

        // Try multiple selectors for subscriber count
        const subCountSelectors = [
          '#subscriber-count',
          '.yt-subscription-button-subscriber-count-branded-horizontal',
          '[id*="subscriber"]',
          '.ytd-subscribe-button-renderer'
        ];

        for (const selector of subCountSelectors) {
          const subCountElem = document.querySelector(selector);
          if (subCountElem) {
            const subText = subCountElem.textContent || subCountElem.innerText || '';
            const subMatch = subText.match(/[\d,\.]+[KMB]?/);
            if (subMatch) {
              let count = subMatch[0].replace(/,/g, '');
              // Handle K, M, B suffixes
              if (count.includes('K')) {
                count = parseFloat(count) * 1000;
              } else if (count.includes('M')) {
                count = parseFloat(count) * 1000000;
              } else if (count.includes('B')) {
                count = parseFloat(count) * 1000000000;
              }
              fallbackStats.followerCount = Math.floor(count);
              utils.log('Extracted fallback subscriber count:', fallbackStats.followerCount);
              break;
            }
          }
        }

        return fallbackStats;

      } catch (error) {
        utils.error('Failed to fetch channel stats:', error);
        return {
          followerCount: 0,
          bottomOdos: [0, 0],
          error: true,
          timestamp: Date.now()
        };
      }
    }

    function clearExistingOverlay() {
      const existingOverlay = document.querySelector('.channel-banner-overlay');
      if (existingOverlay) {
        existingOverlay.remove();
      }
      if (state.intervalId) {
        clearInterval(state.intervalId);
        state.intervalId = null;
      }
      state.lastSuccessfulStats.clear();
      state.previousStats.clear();
      state.isUpdating = false;
      state.overlay = null;
      utils.log('Cleared existing overlay');
    }

    function createDigitElement() {
      const digit = document.createElement('span');
      Object.assign(digit.style, {
        display: 'inline-block',
        width: '0.6em',
        textAlign: 'center',
        marginRight: '0.025em',
        marginLeft: '0.025em'
      });
      return digit;
    }

    function createCommaElement() {
      const comma = document.createElement('span');
      comma.textContent = ',';
      Object.assign(comma.style, {
        display: 'inline-block',
        width: '0.3em',
        textAlign: 'center'
      });
      return comma;
    }

    function createNumberContainer() {
      const container = document.createElement('div');
      Object.assign(container.style, {
        display: 'flex',
        justifyContent: 'center',
        alignItems: 'center',
        letterSpacing: '0.025em'
      });
      return container;
    }

    function updateDigits(container, newValue) {
      const newValueStr = newValue.toString();
      const digits = [];

      for (let i = newValueStr.length - 1; i >= 0; i -= 3) {
        const start = Math.max(0, i - 2);
        digits.unshift(newValueStr.slice(start, i + 1));
      }

      while (container.firstChild) {
        container.removeChild(container.firstChild);
      }

      let digitIndex = 0;

      for (let i = 0; i < digits.length; i++) {
        const group = digits[i];
        for (let j = 0; j < group.length; j++) {
          const digitElement = createDigitElement();
          digitElement.textContent = group[j];
          container.appendChild(digitElement);
          digitIndex++;
        }
        if (i < digits.length - 1) {
          container.appendChild(createCommaElement());
        }
      }

      let elementIndex = 0;
      for (let i = 0; i < digits.length; i++) {
        const group = digits[i];
        for (let j = 0; j < group.length; j++) {
          const digitElement = container.children[elementIndex];
          const newDigit = parseInt(group[j]);
          const currentDigit = parseInt(digitElement.textContent || '0');

          if (currentDigit !== newDigit) {
            animateDigit(digitElement, currentDigit, newDigit);
          }
          elementIndex++;
        }
        if (i < digits.length - 1) {
          elementIndex++;
        }
      }
    }

    function animateDigit(element, start, end) {
      const duration = 1000;
      const startTime = performance.now();

      function update(currentTime) {
        const elapsed = currentTime - startTime;
        const progress = Math.min(elapsed / duration, 1);
        const easeOutQuart = 1 - Math.pow(1 - progress, 4);
        const current = Math.round(start + (end - start) * easeOutQuart);
        element.textContent = current;

        if (progress < 1) {
          requestAnimationFrame(update);
        }
      }

      requestAnimationFrame(update);
    }

    function showContent(overlay) {
      const spinnerContainer = overlay.querySelector('.spinner-container');
      if (spinnerContainer) {
        spinnerContainer.remove();
      }

      const containers = overlay.querySelectorAll('div[style*="visibility: hidden"]');
      containers.forEach(container => {
        container.style.visibility = 'visible';
      });

      const icons = overlay.querySelectorAll('svg[style*="display: none"]');
      icons.forEach(icon => {
        icon.style.display = 'block';
      });
    }

    function updateDifferenceElement(element, currentValue, previousValue) {
      if (!previousValue) return;

      const difference = currentValue - previousValue;
      if (difference === 0) {
        element.textContent = '';
        return;
      }

      const sign = difference > 0 ? '+' : '';
      element.textContent = `${sign}${difference.toLocaleString()}`;
      element.style.color = difference > 0 ? '#1ed760' : '#f3727f';

      setTimeout(() => {
        element.textContent = '';
      }, 1000);
    }

    function updateDisplayState() {
      const overlay = document.querySelector('.channel-banner-overlay');
      if (!overlay) return;

      const statContainers = overlay.querySelectorAll('div[style*="width"]');
      if (!statContainers.length) return;

      let visibleCount = 0;
      const visibleContainers = [];

      statContainers.forEach(container => {
        const numberContainer = container.querySelector('[class$="-number"]');
        if (!numberContainer) return;

        const type = numberContainer.className.replace('-number', '');

        const isVisible = localStorage.getItem(`show-${type}`) !== 'false';

        if (isVisible) {
          container.style.display = 'flex';
          visibleCount++;
          visibleContainers.push(container);
        } else {
          container.style.display = 'none';
        }
      });

      visibleContainers.forEach(container => {
        container.style.width = '';
        container.style.margin = '';

        switch (visibleCount) {
          case 1:
            container.style.width = '100%';
            break;
          case 2:
            container.style.width = '50%';
            break;
          case 3:
            container.style.width = '33.33%';
            break;
          default:
            container.style.display = 'none';
        }
      });

      // Only update font size and font family for .subscribers-number, .views-number, .videos-number
      const fontSize = localStorage.getItem('youtubeEnhancerFontSize') || '24';
      const fontFamily = localStorage.getItem('youtubeEnhancerFontFamily') || 'Rubik, sans-serif';
      overlay.querySelectorAll('.subscribers-number,.views-number,.videos-number').forEach(el => {
        el.style.fontSize = `${fontSize}px`;
        el.style.fontFamily = fontFamily;
      });

      overlay.style.display = 'flex';
    }

    async function updateOverlayContent(overlay, channelName) {
      if (state.isUpdating || channelName !== state.currentChannelName) return;
      state.isUpdating = true;

      try {
        const channelId = await fetchChannelId(channelName);
        const stats = await fetchChannelStats(channelId);

        // Check if channel changed during async operations
        if (channelName !== state.currentChannelName) {
          state.isUpdating = false;
          return;
        }

        if (stats.error) {
          const containers = overlay.querySelectorAll('[class$="-number"]');
          containers.forEach(container => {
            if (container.classList.contains('subscribers-number') && stats.followerCount > 0) {
              updateDigits(container, stats.followerCount);
            } else {
              container.textContent = '---';
            }
          });
          utils.warn('Using fallback stats due to API error');
          return;
        }

        const updateElement = (className, value, label) => {
          const numberContainer = overlay.querySelector(`.${className}-number`);
          const differenceElement = overlay.querySelector(`.${className}-difference`);
          const labelElement = overlay.querySelector(`.${className}-label`);

          if (numberContainer) {
            updateDigits(numberContainer, value);
          }

          if (differenceElement && state.previousStats.has(channelId)) {
            const previousValue = className === 'subscribers' ?
              state.previousStats.get(channelId).followerCount :
              state.previousStats.get(channelId).bottomOdos[className === 'views' ? 0 : 1];
            updateDifferenceElement(differenceElement, value, previousValue);
          }

          if (labelElement) {
            labelElement.textContent = label;
          }
        };

        updateElement('subscribers', stats.followerCount, 'Subscribers');
        updateElement('views', stats.bottomOdos[0], 'Views');
        updateElement('videos', stats.bottomOdos[1], 'Videos');

        if (!state.previousStats.has(channelId)) {
          showContent(overlay);
          utils.log('Displayed initial stats for channel:', channelName);
        }

        state.previousStats.set(channelId, stats);

      } catch (error) {
        utils.error('Failed to update overlay content:', error);
        const containers = overlay.querySelectorAll('[class$="-number"]');
        containers.forEach(container => {
          container.textContent = '---';
        });
      } finally {
        state.isUpdating = false;
      }
    }

    // Add settings UI to experimental section
    function addSettingsUI() {
      const section = document.querySelector('.ytp-plus-settings-section[data-section="experimental"]');
      if (!section || section.querySelector('.count-settings-item')) return;

      const item = document.createElement('div');
      item.className = 'ytp-plus-settings-item count-settings-item';
      item.innerHTML = `
        <div>
          <label class="ytp-plus-settings-item-label">Channel Stats</label>
          <div class="ytp-plus-settings-item-description">Show live subscriber/views/videos overlay on channel banner</div>
        </div>
        <input type="checkbox" class="ytp-plus-settings-checkbox" ${state.enabled ? 'checked' : ''}>
      `;
      section.appendChild(item);

      item.querySelector('input').addEventListener('change', e => {
        state.enabled = e.target.checked;
        localStorage.setItem(CONFIG.STORAGE_KEY, state.enabled ? 'true' : 'false');
        if (!state.enabled) {
          clearExistingOverlay();
        } else {
          observePageChanges();
          addNavigationListener();
          setTimeout(() => {
            const bannerElement = document.getElementById('page-header-banner-sizer');
            if (bannerElement && isChannelPage()) {
              addOverlay(bannerElement);
            }
          }, 100);
        }
      });
    }

    // Observe settings modal for experimental section
    const settingsObserver = new MutationObserver(mutations => {
      for (const { addedNodes } of mutations) {
        for (const node of addedNodes) {
          if (node.classList?.contains('ytp-plus-settings-modal')) {
            setTimeout(addSettingsUI, 100);
            return;
          }
        }
      }
      if (document.querySelector('.ytp-plus-settings-nav-item[data-section="experimental"].active')) {
        setTimeout(addSettingsUI, 50);
      }
    });
    settingsObserver.observe(document.body, { childList: true, subtree: true });

    document.addEventListener('click', e => {
      if (e.target.classList?.contains('ytp-plus-settings-nav-item') &&
        e.target.dataset.section === 'experimental') {
        setTimeout(addSettingsUI, 50);
      }
    }, true);

    function addOverlay(bannerElement) {
      // Improved channel name extraction with better URL parsing
      let channelName = null;
      const pathname = window.location.pathname;

      if (pathname.startsWith('/@')) {
        channelName = pathname.split('/')[1].replace('@', '');
      } else if (pathname.startsWith('/channel/')) {
        channelName = pathname.split('/')[2];
      } else if (pathname.startsWith('/c/')) {
        channelName = pathname.split('/')[2];
      } else if (pathname.startsWith('/user/')) {
        channelName = pathname.split('/')[2];
      }

      // Skip if no valid channel name or already processing the same channel
      if (!channelName || (channelName === state.currentChannelName && state.overlay)) {
        return;
      }

      // Ensure banner element is properly positioned
      if (bannerElement && !bannerElement.style.position) {
        bannerElement.style.position = 'relative';
      }

      state.currentChannelName = channelName;
      state.overlay = createOverlay(bannerElement);

      if (state.overlay) {
        // Clear existing interval
        if (state.intervalId) {
          clearInterval(state.intervalId);
          state.intervalId = null;
        }

        // Debounced update function for better performance
        let lastUpdateTime = 0;
        const debouncedUpdate = () => {
          const now = Date.now();
          if (now - lastUpdateTime >= state.updateInterval - 100) {
            updateOverlayContent(state.overlay, channelName);
            lastUpdateTime = now;
          }
        };

        // Set up interval with debouncing
        state.intervalId = setInterval(debouncedUpdate, state.updateInterval);

        // Initial update
        updateOverlayContent(state.overlay, channelName);
        utils.log('Added overlay for channel:', channelName);
      }
    }

    function isChannelPage() {
      return window.location.pathname.startsWith("/@") ||
        window.location.pathname.startsWith("/channel/") ||
        window.location.pathname.startsWith("/c/");
    }

    function observePageChanges() {
      if (!state.enabled) return;

      // More robust banner detection with multiple fallback selectors
      const observer = new MutationObserver((mutations) => {
        // Throttle observations for better performance
        clearTimeout(observer._timeout);
        observer._timeout = setTimeout(() => {
          let bannerElement = document.getElementById('page-header-banner-sizer');

          // Try alternative selectors if main one fails
          if (!bannerElement) {
            const alternatives = [
              '[id*="banner"]',
              '.ytd-c4-tabbed-header-renderer',
              '#channel-header',
              '.channel-header'
            ];

            for (const selector of alternatives) {
              bannerElement = document.querySelector(selector);
              if (bannerElement) break;
            }
          }

          if (bannerElement && isChannelPage()) {
            // Ensure banner has proper positioning
            if (bannerElement.style.position !== 'relative') {
              bannerElement.style.position = 'relative';
            }
            addOverlay(bannerElement);
          } else if (!isChannelPage()) {
            // Clean up when not on channel page
            clearExistingOverlay();
            state.currentChannelName = null;
          }
        }, 100); // Small delay to batch rapid changes
      });

      observer.observe(document.body, {
        childList: true,
        subtree: true,
        attributes: false // Reduce observation scope for performance
      });

      // Store timeout reference for cleanup
      observer._timeout = null;

      return observer;
    }

    function addNavigationListener() {
      if (!state.enabled) return;

      window.addEventListener("yt-navigate-finish", () => {
        if (!isChannelPage()) {
          clearExistingOverlay();
          state.currentChannelName = null;
          utils.log('Navigated away from channel page');
        } else {
          const bannerElement = document.getElementById('page-header-banner-sizer');
          if (bannerElement) {
            addOverlay(bannerElement);
            utils.log('Navigated to channel page');
          }
        }
      });
    }

    init();
  })();

})();