(function () {
  'use strict';
  const base = new URL('.', document.currentScript.src);
  const configFile = 'quran_reader_registry.json';
  let configPromise, corePromise, preferences, epoch = 0, cleanup = () => {};
  const node = (tag, text, className) => {
    const element = document.createElement(tag);
    if (text != null) element.textContent = text;
    if (className) element.className = className;
    return element;
  };
  const button = (text, action) => {
    const element = node('button', text);
    element.type = 'button';
    element.addEventListener('click', action);
    return element;
  };
  const format = (text, values) => text.replace(/\{(\w+)\}/g, (_, key) => String(values[key] ?? ''));
  // Normalize only the search index; the displayed Quran text is never transformed.
  const normalize = text => String(text).normalize('NFD').replace(/[\u0610-\u061a\u064b-\u065f\u0670\u06d6-\u06ed\u0300-\u036f\u0640]/g, '')
    .replace(/[\u0622\u0623\u0625\u0671]/g, '\u0627').replace(/\u0649/g, '\u064a').replace(/\s+/g, ' ').trim();

  async function fetchJSON(file, timeout = 30000) {
    const url = new URL(file, base);
    if (url.origin !== base.origin) throw Error('Cross-origin Quran registry');
    const controller = new AbortController();
    const timer = setTimeout(() => controller.abort(), timeout);
    try {
      const response = await fetch(url, {signal: controller.signal, cache:file===configFile?'no-store':'default'});
      if (!response.ok) throw Error(file + ' HTTP ' + response.status);
      return await response.json();
    } finally { clearTimeout(timer); }
  }
  function config() {
    if (!configPromise) configPromise = fetchJSON(configFile).then(value => {
      if (value.schema_version !== 1 || !value.ui || !value.core_file || !value.defaults || !value.limits) throw Error('Invalid reader registry');
      for (const key of ['title','open','settings','loading','load_error','retry','surah','ayah','page','juz','go','previous','next',
        'search','search_submit','search_empty','no_results','results','more','reader','page_status','invalid_page','font_size',
        'remember_page','save','saved','storage_error','back','source','theme','theme_auto','theme_light','theme_dark',
        'follow_audio','verse_actions','listen','copy','copied','copy_failed','close_actions','audio_loading','audio_unavailable','search_surah']) {
        if (typeof value.ui[key] !== 'string') throw Error('Missing UI: ' + key);
      }
      if (!Number.isInteger(value.limits.search_batch) || value.limits.search_batch < 1) throw Error('Invalid search limit');
      return value;
    }).catch(error => { configPromise = null; throw error; });
    return configPromise;
  }
  function data(c) {
    if (!corePromise) corePromise = fetchJSON(c.core_file, c.limits.request_timeout_ms).then(async value => {
      if (value.schema_version !== 1 || value.counts?.ayahs !== 6236 || value.counts?.pages !== 604 || value.counts?.juz !== 30 ||
        value.counts?.surahs !== 114 || value.surahs?.length !== 114 || value.verses?.length !== 6236) throw Error('Invalid Quran registry');
      const pages = Array.from({length: value.counts.pages + 1}, () => []);
      const juzPages = [];
      const nextAyah = Array(115).fill(1);
      value.surahs.forEach((s, i) => {
        if (s.id !== i + 1 || typeof s.name !== 'string' || !Number.isInteger(s.ayah_count)) throw Error('Invalid surah');
      });
      let previousPage = 1, previousSurah = 1, previousJuz = 1;
      value.verses.forEach((v, i) => {
        if (v.id !== i + 1 || !Number.isInteger(v.page) || !pages[v.page] || v.page < 1 || v.page < previousPage ||
          !Number.isInteger(v.juz) || v.juz < previousJuz || v.juz > 30 ||
          !Number.isInteger(v.surah) || v.surah < previousSurah || v.surah > 114 ||
          v.ayah !== nextAyah[v.surah]++ || typeof v.text !== 'string' || !v.text || typeof v.search_text !== 'string') throw Error('Invalid ayah: ' + (i + 1));
        previousPage = v.page; previousSurah = v.surah; previousJuz = v.juz;
        pages[v.page].push(v);
        if (!juzPages[v.juz]) juzPages[v.juz] = v.page;
      });
      value.surahs.forEach(s => {
        if (nextAyah[s.id] - 1 !== s.ayah_count || pages[s.first_page]?.find(v => v.surah === s.id)?.ayah !== 1) throw Error('Surah count mismatch');
      });
      if (pages.slice(1).some(p => !p.length) || Array.from({length:30}, (_, i) => juzPages[i + 1]).some(p => !p)) throw Error('Missing page or juz');
      // Keep old page boundaries for existing plans; overlay metadata by verse key only.
      const legacyPages=pages.map(row=>row.map(v=>v.id));
      const partitions=await fetchJSON('quran_partitions_registry.json');
      if(partitions.schema_version!==1||partitions.revision!=='tanzil-20260929'||partitions.surah_ayah_counts?.length!==114||
        value.surahs.some((s,i)=>partitions.surah_ayah_counts[i]!==s.ayah_count)||!partitions.reader_ui||!partitions.khatma_ui||!Array.isArray(partitions.units))throw Error('Invalid partitions registry');
      const byKey=new Map(value.verses.map(v=>[v.surah+':'+v.ayah,v]));
      const mapped={};
      for(const [field,count] of Object.entries({page:604,juz:30,hizb:60,rub_el_hizb:240})){
        const rows=partitions[field];if(!Array.isArray(rows)||rows.length!==count)throw Error('Invalid partition count: '+field);
        let previous=0;
        mapped[field]=rows.map((row,i)=>{
          const start=byKey.get(row.start),end=byKey.get(row.end);
          if(row.id!==i+1||!start||!end||start.id!==previous+1||end.id<start.id)throw Error('Invalid partition boundary: '+field);
          previous=end.id;return {...row,startId:start.id,endId:end.id};
        });
        if(previous!==6236)throw Error('Incomplete partition coverage: '+field);
      }
      mapped.rub_el_hizb.forEach((r,i)=>{
        if(r.juz!==Math.floor(i/8)+1||r.hizb!==Math.floor(i/4)+1||
          r.startId<mapped.juz[r.juz-1].startId||r.endId>mapped.juz[r.juz-1].endId||
          r.startId<mapped.hizb[r.hizb-1].startId||r.endId>mapped.hizb[r.hizb-1].endId)throw Error('Partition parent mismatch');
      });
      mapped.hizb.forEach((h,i)=>{if(h.juz!==Math.floor(i/2)+1||JSON.stringify(h.rub_el_hizb)!==JSON.stringify([1,2,3,4].map(n=>i*4+n)))throw Error('Invalid hizb children');});
      mapped.juz.forEach((j,i)=>{if(JSON.stringify(j.hizb)!==JSON.stringify([i*2+1,i*2+2])||JSON.stringify(j.rub_el_hizb)!==JSON.stringify(Array.from({length:8},(_,n)=>i*8+n+1)))throw Error('Invalid juz children');});
      value.verses.forEach(v=>{v.verse_key=v.surah+':'+v.ayah;});
      for(const [field,rows] of Object.entries(mapped))for(const row of rows){
        for(let id=row.startId;id<=row.endId;id++){const v=value.verses[id-1];byKey.get(v.verse_key)[field]=row.id;}
      }
      for(const row of pages)row.length=0;juzPages.length=0;
      value.verses.forEach(v=>{pages[v.page].push(v);if(!juzPages[v.juz])juzPages[v.juz]=v.page;});
      value.surahs.forEach(s=>{s.first_page=byKey.get(s.id+':1').page;});
      Object.assign(c.ui,partitions.reader_ui);
      return {...value, pages, juzPages, legacyPages, partitions:{...partitions,...mapped}, byKey, searchIndex: value.verses.map(v => normalize(v.search_text))};
    }).catch(error => { corePromise = null; throw error; });
    return corePromise;
  }
  function prefs(c) {
    if (preferences) return preferences;
    let saved;
    try { saved = JSON.parse(localStorage.getItem(c.storage_key)); } catch { /* Storage is optional. */ }
    preferences = {
      font_size: Number.isFinite(saved?.font_size) ? Math.max(c.limits.font_min, Math.min(c.limits.font_max, saved.font_size)) : c.defaults.font_size,
      remember_page: typeof saved?.remember_page === 'boolean' ? saved.remember_page : c.defaults.remember_page,
      metadata_revision: saved?.metadata_revision,
      page: Number.isInteger(saved?.page) && saved.page >= 1 && saved.page <= 604 ? saved.page : 1,
      theme: ['auto','light','dark'].includes(saved?.theme) ? saved.theme : c.defaults.theme,
      follow_audio: typeof saved?.follow_audio === 'boolean' ? saved.follow_audio : c.defaults.follow_audio,
      show_partition_status: typeof saved?.show_partition_status === 'boolean' ? saved.show_partition_status : c.defaults.show_partition_status,
      show_swipe_hint: typeof saved?.show_swipe_hint === 'boolean' ? saved.show_swipe_hint : c.defaults.show_swipe_hint
    };
    return preferences;
  }
  function persist(c) {
    try { localStorage.setItem(c.storage_key, JSON.stringify(preferences)); return true; }
    catch { return false; }
  }
  function progress(c) {
    try {const value=JSON.parse(localStorage.getItem(c.progress_storage_key));return value&&typeof value==='object'?value:{};} catch {return {};}
  }
  function saveProgress(c,kind,value) {
    try {const raw=localStorage.getItem(c.progress_storage_key),state=raw?JSON.parse(raw):{};if(!state||typeof state!=='object')throw Error('storage');state[kind]=value;localStorage.setItem(c.progress_storage_key,JSON.stringify(state));return true;} catch {return false;}
  }
  function panel(title, root, back, ui) {
    RegistryApp.openPanel('worship', {title, compact: true}, () => {
      document.getElementById('adaptivePopupBody').append(root);
      if (back) document.getElementById('adaptivePopupActions').append(button(ui.back, back));
    });
    document.getElementById('adaptivePopupCard').dataset.size = 'long';
  }
  function applyTheme(c, p) {
    const card = document.getElementById('adaptivePopupCard');
    const mode = p.theme === 'auto' ? (window.matchMedia?.('(prefers-color-scheme: dark)').matches ? 'dark' : 'light') : p.theme;
    card.dataset.quranTheme = mode;
    for (const [key,value] of Object.entries(c.themes[mode])) card.style.setProperty('--quran-'+key,value);
  }
  function themeField(c, p, onChange) {
    const label = node('label',c.ui.theme), select = node('select');
    for (const key of ['auto','light','dark']) {const option=node('option',c.ui['theme_'+key]);option.value=key;select.append(option);}
    select.value=p.theme;select.addEventListener('change',()=>onChange(select.value));label.append(select);return label;
  }
  async function mount(parent, back, settingsOnly) {
    const entry = button('…', () => {});
    entry.disabled = true;
    entry.dataset.quranEntry = settingsOnly ? 'settings' : 'reader';
    parent.append(entry);
    try {
      const c = await config();
      if (!entry.isConnected) return;
      entry.textContent = settingsOnly ? c.ui.settings : c.ui.open;
      entry.disabled = false;
      entry.onclick = () => settingsOnly ? openSettings(back) : open({back});
    } catch (error) {
      if (!entry.isConnected) return;
      entry.textContent = configFile + ': ' + error.message;
      entry.disabled = false;
      entry.onclick = () => { entry.remove(); mount(parent, back, settingsOnly); };
    }
  }
  async function open(options = {}) {
    const request = ++epoch;
    let c;
    try { c = await config(); }
    catch (error) {
      if (request !== epoch) return;
      const root = node('div', configFile + ': ' + error.message);
      root.append(button('↻', () => open(options)));
      panel(configFile, root, options.back, {back: '←'});
      return;
    }
    if (request !== epoch) return;
    const root = node('div', null, 'quran-reader');
    const loading = node('p', c.ui.loading);
    loading.setAttribute('role', 'status');
    root.append(loading);
    panel(c.ui.title, root, options.back, c.ui);
    const token = epoch;
    try {
      const source = await data(c);
      if (token !== epoch || !root.isConnected) return;
      renderReader(root, source, c, options);
    } catch (error) {
      if (token !== epoch || !root.isConnected) return;
      loading.textContent = c.ui.load_error;
      root.append(node('p', error.message, 'quran-meta'), button(c.ui.retry, () => open(options)));
    }
  }
  function renderReader(root, source, c, options) {
    const ui = c.ui, p = prefs(c);
    let legacyRememberedPage=null;
    if(p.metadata_revision!==source.partitions.revision){
      legacyRememberedPage=p.page;
      const firstId=source.legacyPages[p.page]?.[0];
      if(firstId)p.page=source.verses[firstId-1].page;
      p.metadata_revision=source.partitions.revision;persist(c);
    }
    let page = p.remember_page ? p.page : 1;
    const savedProgress=progress(c),wird=options.wird;
    let focusVerse = null;
    const savedReading=source.verses[(wird?.progress?.reading?.verseId||savedProgress.reading?.verseId)-1];
    if(!options.page&&!options.surah&&savedReading&&(options.resumeReading||p.remember_page&&(savedReading.page===page||savedProgress.reading?.page===legacyRememberedPage))){focusVerse=savedReading;page=focusVerse.page;}
    if (Number.isInteger(options.page) && source.pages[options.page]?.length) page = options.page;
    if (Number.isInteger(options.surah)) {
      focusVerse = source.verses.find(v => v.surah === options.surah && v.ayah === (options.ayah || 1));
      if (focusVerse) page = focusVerse.page;
    }
    if(wird){
      const point=wird.progress?.reading||wird.progress?.page;
      const v=source.verses[point?.verseId-1];
      const startId=wird.startId||source.pages[wird.startPage][0].id,endId=wird.endId||source.pages[wird.endPage].at(-1).id;
      focusVerse=v&&v.id>=startId&&v.id<=endId?v:source.verses[startId-1];page=focusVerse.page;
    }
    root.replaceChildren();
    root.style.setProperty('--quran-font-size', p.font_size + 'px');
    applyTheme(c,p);
    let player = null, mounted = true, audioState = null, lastFollowed = null, actionVerse = null, actionOrigin = null;
    let audioAttempt = 0;
    cleanup = () => {saveAudio(player?.snapshot(),true);mounted=false;audioAttempt++;player?.dispose();window.removeEventListener('pagehide',flushAudio);document.removeEventListener('visibilitychange',flushAudio);};
    const toolbar = node('div', null, 'quran-toolbar');
    const navPanel = node('details', null, 'quran-navigator');
    const navigatorTitle = node('summary', ui.navigate);
    const navigatorGrid = node('div', null, 'quran-navigator-grid');
    navPanel.append(navigatorTitle, navigatorGrid);
    toolbar.append(navPanel);
    const field = (label, input) => { const wrap = node('label', label); wrap.append(input); navigatorGrid.append(wrap); return input; };
    const select = (items, label) => {
      const input = node('select');
      for (const [value, text] of items) { const option = node('option', text); option.value = value; input.append(option); }
      return field(label, input);
    };
    const surahSelect = select(source.surahs.map(s => [s.id, s.id + '. ' + s.name]), ui.surah);
    const surahSearch = node('input');surahSearch.type='search';surahSearch.placeholder=ui.search_surah;surahSearch.setAttribute('aria-label',ui.search_surah);
    const surahSearchLabel=node('label',ui.search_surah);surahSearchLabel.append(surahSearch);
    navigatorGrid.insertBefore(surahSearchLabel,surahSelect.parentElement);
    surahSearch.addEventListener('input',()=>{
      const term=normalize(surahSearch.value),keep=surahSelect.value;
      surahSelect.replaceChildren();
      for(const sr of source.surahs){
        const text=sr.id+'. '+sr.name;
        if(term&&!normalize(text).includes(term))continue;
        const option=node('option',text);option.value=sr.id;surahSelect.append(option);
      }
      if([...surahSelect.options].some(o=>o.value===keep))surahSelect.value=keep;
      status.textContent=surahSelect.options.length?'':ui.no_results;
    });
    const juzSelect = select(Array.from({length: source.counts.juz}, (_, i) => [i + 1, i + 1]), ui.juz);
    const hizbSelect=select(source.partitions.hizb.map(r=>[r.id,r.id]),ui.hizb);
    const rubSelect=select(source.partitions.rub_el_hizb.map(r=>[r.id,r.id]),ui.rub_el_hizb);
    const position=node('p',null,'quran-meta');position.setAttribute('aria-live','off');
    function positionText(v){return format(ui.partition_position,{juz:v.juz,hizb:v.hizb,rub:v.rub_el_hizb,page:v.page});}
    const pageForm = node('form');
    const pageLabel = node('label', ui.page);
    const pageInput = node('input');
    pageInput.type = 'number'; pageInput.min = 1; pageInput.max = source.counts.pages; pageInput.required = true;
    pageLabel.append(pageInput); pageForm.append(pageLabel);
    const go = node('button', ui.go); go.type = 'submit'; pageForm.append(go); navigatorGrid.append(pageForm);
    toolbar.append(button(ui.settings_short, () => openSettings(() => open({...options, page, surah: undefined, ayah: undefined}))));
    const searchForm = node('form', null, 'quran-search'); searchForm.setAttribute('role', 'search');
    const query = node('input'); query.type = 'search'; query.setAttribute('aria-label', ui.search); query.placeholder = ui.search;
    const submit = node('button', ui.search_submit); submit.type = 'submit'; searchForm.append(query, submit);
    const status = node('p', null, 'quran-meta'); status.setAttribute('role', 'status');
    const content = node('div',null,'quran-pages');
    const audioHost=node('div');
    const actions=node('section',null,'quran-ayah-actions');actions.hidden=true;actions.setAttribute('aria-label',ui.verse_actions);
    const actionTitle=node('h3'), actionStatus=node('p');actionStatus.setAttribute('role','status');
    const listen=button(ui.listen,()=>{if(player&&actionVerse){player.playAt(actionVerse.id);actions.hidden=true;actionOrigin?.focus();}});
    listen.disabled=true;
    const copy=button(ui.copy,async()=>{
      if(!actionVerse)return;
      const text=actionVerse.text+'\n['+source.surahs[actionVerse.surah-1].name+': '+actionVerse.ayah+']';
      try{await navigator.clipboard.writeText(text);actionStatus.textContent=ui.copied;}
      catch{
        const input=node('textarea',text);input.readOnly=true;input.setAttribute('aria-label',ui.copy);
        actionStatus.replaceChildren(node('span',ui.copy_failed),input);input.focus();input.select();
      }
    });
    const bookmark=button(ui.bookmark,()=>{
      if(!actionVerse)return;
      const point={verseId:actionVerse.id,page:actionVerse.page,at:Date.now()};
      const ok=saveProgress(c,'reading',point);
      const planOK=window.MuslimClockKhatma?.savePosition(wird,'reading',point)!==false;
      actionStatus.textContent=ok&&planOK?ui.bookmark_saved:ui.progress_error;updateBookmarks();
    });
    const linkGroups=[
      {key:'tafsir',items:c.tafsirs,note:'tafsir_note'},
      {key:'asbab',items:c.asbab_nuzul,note:'asbab_note'},
      {key:'meanings',items:c.word_meanings,note:'meanings_note'}
    ].filter(g=>Array.isArray(g.items)&&g.items.length).map(g=>{
      const box=node('details',null,'quran-link-group'),title=node('summary',ui[g.key]),list=node('ul',null,'quran-link-list');
      box.append(title,node('p',ui[g.note],'quran-meta'),list);return {...g,box,list};
    });
    actions.append(actionTitle,listen,copy,bookmark,...linkGroups.map(g=>g.box),button(ui.close_actions,()=>{actions.hidden=true;actionOrigin?.focus();}),actionStatus);
    function fillLinks(verse){
      for(const g of linkGroups){
        g.list.replaceChildren();g.box.open=false;
        for(const item of g.items){
          try{
            const url=new URL(format(item.url,{surah:verse.surah,ayah:verse.ayah}));if(url.protocol!=='https:')continue;
            const li=node('li'),link=node('a',item.name+' ↗');link.href=url.href;link.target='_blank';link.rel='noopener noreferrer';
            link.setAttribute('aria-label',ui[g.key]+' — '+source.surahs[verse.surah-1].name+' '+ui.ayah+' '+verse.ayah+' — '+item.name+' — '+ui.external_link);
            link.addEventListener('click',()=>player?.pause());li.append(link);g.list.append(li);
          }catch{}
        }
      }
    }
    function selectVerse(verse, origin) {
      actionVerse=verse;actionOrigin=origin;
      fillLinks(verse);
      actionTitle.textContent=source.surahs[verse.surah-1].name+' · '+ui.ayah+' '+verse.ayah+' · '+positionText(verse);
      actionStatus.replaceChildren();actions.hidden=false;(listen.disabled?copy:listen).focus();
    }
    const nav = node('div', null, 'quran-nav');
    const previous = button(ui.previous, () => showPage(page - 1));
    const next = button(ui.next, () => showPage(page + 1)); nav.append(previous, next);
    const attribution = node('a', ui.source); attribution.href = new URL(c.source_file, base).href;
    attribution.target = '_blank'; attribution.rel = 'noopener'; attribution.className = 'quran-meta';
    const bookmarks=node('div',null,'quran-bookmarks'),readingStatus=node('p',null,'quran-meta'),audioStatus=node('p',null,'quran-meta');
    const resumeReading=button(ui.resume_reading,()=>{const point=progress(c).reading,v=source.verses[point?.verseId-1];if(v)showPage(v.page,v);});
    const resumeAudio=button(ui.resume_audio,()=>{const point=progress(c).audio,v=source.verses[point?.verseId-1];if(v&&player){showPage(v.page,v);player.resumeFrom(point);}});
    const planButton=button(ui.khatma,()=>{player?.pause();if(window.MuslimClockKhatma)window.MuslimClockKhatma.show({back:()=>open({...options,page})});else status.textContent=ui.quran_features_error;});
    bookmarks.append(readingStatus,resumeReading,audioStatus,resumeAudio,planButton);
    if(wird){
      bookmarks.append(node('p',wird.startId?format(ui.wird_exact,{day:wird.dayIndex+1,start:source.verses[wird.startId-1].verse_key,end:source.verses[wird.endId-1].verse_key,first:wird.startPage,last:wird.endPage}):format(ui.wird_range,{day:wird.dayIndex+1,start:wird.startPage,end:wird.endPage})));
      const point=wird.progress?.audio;
      if(point)bookmarks.append(button(ui.wird_resume_audio,()=>{const v=source.verses[point.verseId-1];if(v&&player){showPage(v.page,v);player.resumeFrom(point);}}));
    }
    const metadataLink=node('a',ui.partition_source);metadataLink.href=source.partitions.sources[0].url;metadataLink.target='_blank';metadataLink.rel='noopener noreferrer';metadataLink.className='quran-meta';navigatorGrid.append(metadataLink);
    const swipeHint=node('p',ui.swipe_hint,'quran-meta');swipeHint.hidden=!p.show_swipe_hint;position.hidden=!p.show_partition_status;
    root.append(toolbar,position,bookmarks,audioHost,searchForm,status,actions,swipeHint,content,nav,attribution);
    function updateBookmarks(){
      const saved=progress(c),v=source.verses[saved.reading?.verseId-1],a=source.verses[saved.audio?.verseId-1];
      readingStatus.textContent=v?format(ui.reading_position,{surah:source.surahs[v.surah-1].name,ayah:v.ayah,page:v.page}):format(ui.saved_page,{page:p.page});
      resumeReading.hidden=!v;
      audioStatus.textContent=a?format(ui.audio_position,{surah:source.surahs[a.surah-1].name,ayah:a.ayah,seconds:Math.floor(saved.audio.time||0)}):'';
      resumeAudio.hidden=!a;resumeAudio.disabled=!player;
    }
    let lastSavedAudio='';
    function saveAudio(state,force=false){
      if(!state?.played||!['playing','paused','ended','loading'].includes(state.phase))return;
      const signature=[state.verse.id,state.settings.reciter,Math.floor(state.currentTime/2)].join(':');
      if(!force&&signature===lastSavedAudio)return;
      const point={verseId:state.verse.id,page:state.verse.page,time:Math.max(0,state.currentTime||0),reciter:state.settings.reciter,rate:state.settings.rate,at:Date.now()};
      const ok=saveProgress(c,'audio',point),planOK=window.MuslimClockKhatma?.savePosition(wird,'audio',point)!==false;
      if(ok&&planOK)lastSavedAudio=signature;else status.textContent=ui.progress_error;
      updateBookmarks();
    }
    function flushAudio(){saveAudio(player?.snapshot(),true);}
    window.addEventListener('pagehide',flushAudio);document.addEventListener('visibilitychange',flushAudio);
    let touch=null,suppressClickUntil=0;
    content.addEventListener('touchstart',e=>{touch=e.touches.length===1?{x:e.touches[0].clientX,y:e.touches[0].clientY,at:Date.now()}:null;},{passive:true});
    content.addEventListener('touchcancel',()=>{touch=null;},{passive:true});
    content.addEventListener('touchmove',e=>{if(e.touches.length!==1)touch=null;},{passive:true});
    content.addEventListener('touchend',e=>{
      const start=touch;touch=null;if(!start||e.changedTouches.length!==1||!content.querySelector('.quran-page-text')||String(window.getSelection?.()||'').trim())return;
      const dx=e.changedTouches[0].clientX-start.x,dy=e.changedTouches[0].clientY-start.y,rule=c.swipe;
      if(!rule||Date.now()-start.at>rule.max_duration_ms||Math.abs(dx)<rule.min_distance_px||Math.abs(dx)<Math.abs(dy)*rule.horizontal_ratio)return;
      const target=page+(dx>0?1:-1);if(!source.pages[target]?.length)return;
      suppressClickUntil=Date.now()+rule.click_suppression_ms;showPage(target);
    },{passive:true});
    content.addEventListener('click',e=>{if(Date.now()<suppressClickUntil){e.preventDefault();e.stopImmediatePropagation();}},true);
    updateBookmarks();
    function paintPlaying() {
      for(const verse of content.querySelectorAll('.quran-verse')) {
        const playing=audioState?.phase==='playing'&&verse.id==='quran-verse-'+audioState.verse.id;
        verse.classList.toggle('quran-playing',playing);
        if(playing)verse.setAttribute('aria-current','true');else verse.removeAttribute('aria-current');
      }
    }
    function audioChanged(state) {
      if(!mounted)return;
      audioState=state;saveAudio(state,state.phase==='paused'||state.phase==='ended');
      if(wird&&state.phase==='ended'&&state.verse.id===(wird.endId||source.pages[wird.endPage].at(-1).id))status.textContent=ui.wird_audio_end;
      if(state.phase==='playing'&&state.verse.id!==lastFollowed&&p.follow_audio) {
        lastFollowed=state.verse.id;
        if(page!==state.verse.page||!content.querySelector('.quran-page-text'))showPage(state.verse.page,null,true);
        document.getElementById('quran-verse-'+state.verse.id)?.scrollIntoView({block:'nearest'});
      }
      if(state.phase==='playing')position.textContent=positionText(state.verse);
      paintPlaying();
    }
    async function mountAudio() {
      const attempt=++audioAttempt;
      audioHost.replaceChildren(node('p',ui.audio_loading,'quran-meta'));
      try {
        if(!window.MuslimClockQuranAudio)throw Error('quran_audio.js');
        const nextPlayer=await window.MuslimClockQuranAudio.mount(audioHost,{
          verses:source.verses,surahs:source.surahs,initialId:focusVerse?.id||source.pages[page][0].id,endId:wird?(wird.endId||source.pages[wird.endPage].at(-1).id):undefined,
          isActive:()=>mounted&&attempt===audioAttempt&&root.isConnected,onState:audioChanged
        });
        if(!mounted||attempt!==audioAttempt){nextPlayer?.dispose();return;}
        player=nextPlayer;listen.disabled=!player;updateBookmarks();
      } catch(error) {
        if(!mounted||attempt!==audioAttempt)return;
        audioHost.replaceChildren(node('p',ui.audio_unavailable,'quran-meta'),button(ui.retry,mountAudio));
      }
    }
    function showPage(value, selectedVerse, fromAudio=false) {
      if (!Number.isInteger(value) || !source.pages[value]?.length) { status.textContent = format(ui.invalid_page, {total:source.counts.pages}); return; }
      page = value;
      const verses = source.pages[page];
      content.replaceChildren(); nav.hidden = false;actions.hidden=true;
      pageInput.value = page; surahSelect.value = selectedVerse?.surah || verses[0].surah; juzSelect.value = selectedVerse?.juz || verses[0].juz;
      const currentVerse=selectedVerse||verses[0];hizbSelect.value=currentVerse.hizb;rubSelect.value=currentVerse.rub_el_hizb;position.textContent=positionText(currentVerse);
      const juz = [...new Set(verses.map(v => v.juz))].join('، ');
      status.textContent = format(ui.page_status, {page, total: source.counts.pages, juz});
      previous.disabled = page === 1; next.disabled = page === source.counts.pages;
      let lastSurah, paragraph;
      for (const verse of verses) {
        if (verse.surah !== lastSurah) {
          content.append(node('h3', source.surahs[verse.surah - 1].name, 'quran-page-title'));
          if (verse.ayah === 1 && verse.surah !== 1 && verse.surah !== 9) content.append(node('p', source.verses[0].text, 'quran-basmala'));
          paragraph = node('p', null, 'quran-page-text'); content.append(paragraph); lastSurah = verse.surah;
        }
        const span = node('span', verse.text, 'quran-verse');
        span.id = 'quran-verse-' + verse.id; span.tabIndex = 0;span.setAttribute('role','button');
        span.setAttribute('aria-label',verse.text+' — '+ui.ayah+' '+verse.ayah+' — '+ui.verse_actions);span.setAttribute('aria-haspopup','true');
        span.addEventListener('click',()=>selectVerse(verse,span));
        span.addEventListener('keydown',event=>{if(event.key==='Enter'||event.key===' '){event.preventDefault();selectVerse(verse,span);}});
        const number = node('span', ' (' + verse.ayah + ') ', 'quran-verse-number');
        number.setAttribute('aria-label', ui.ayah + ' ' + verse.ayah);
        span.append(number); paragraph.append(span, document.createTextNode(' '));
      }
      if (p.remember_page&&!fromAudio) {
        p.page = page;
        if (!persist(c)) status.textContent += ' ' + ui.storage_error;
      }
      if(!fromAudio&&wird&&window.MuslimClockKhatma?.savePosition(wird,'page',{page,verseId:selectedVerse?.id||verses[0].id})===false)status.textContent=ui.progress_error;
      if(!fromAudio){document.getElementById('adaptivePopupBody').scrollTop = 0;player?.select(selectedVerse?.id||verses[0].id);}
      paintPlaying();updateBookmarks();
      if (selectedVerse) {
        const target = document.getElementById('quran-verse-' + selectedVerse.id);
        target?.focus({preventScroll: true}); target?.scrollIntoView({block:'center'});
      }
    }
    pageForm.addEventListener('submit', event => { event.preventDefault(); showPage(Number(pageInput.value)); });
    surahSelect.addEventListener('change', () => {
      const verse = source.verses.find(v => v.surah === Number(surahSelect.value)); showPage(verse.page, verse);
    });
    juzSelect.addEventListener('change', () => {
      const verse = source.verses.find(v => v.juz === Number(juzSelect.value)); showPage(verse.page, verse);
    });
    for(const [input,kind] of [[hizbSelect,'hizb'],[rubSelect,'rub_el_hizb']])input.addEventListener('change',()=>{const v=source.byKey.get(source.partitions[kind][Number(input.value)-1].start);showPage(v.page,v);});
    searchForm.addEventListener('submit', event => {
      event.preventDefault();
      const text = normalize(query.value);
      if (!text) { status.textContent = ui.search_empty; query.focus(); return; }
      const matches = source.verses.filter((_, i) => source.searchIndex[i].includes(text));
      player?.pause();actions.hidden=true;
      content.replaceChildren(); nav.hidden = true;
      status.textContent = matches.length ? format(ui.results, {count: matches.length}) : ui.no_results;
      content.append(button(ui.reader, () => showPage(page)));
      let shown = 0;
      const more = button(ui.more, appendResults);
      function appendResults() {
        more.remove();
        for (const verse of matches.slice(shown, shown + c.limits.search_batch)) {
          const result = button(source.surahs[verse.surah - 1].name + ' · ' + ui.ayah + ' ' + verse.ayah + ' · ' + ui.page + ' ' + verse.page,
            () => showPage(verse.page, verse));
          result.className = 'quran-result';
          result.append(node('span', verse.text, 'quran-result-text')); content.append(result);
        }
        shown += c.limits.search_batch;
        if (shown < matches.length) content.append(more);
      }
      appendResults();
    });
    showPage(page, focusVerse);
    if(options.khatmaUnavailable)status.textContent=ui.quran_features_error;
    mountAudio();
  }
  async function openSettings(back) {
    const request = ++epoch;
    let c;
    try { c = await config(); } catch { return open({back}); }
    if (request !== epoch) return;
    const ui = c.ui, p = prefs(c), root = node('div', null, 'quran-settings');
    const label = node('label', ui.font_size), font = node('input'), output = node('output', p.font_size);
    font.type = 'range'; font.min = c.limits.font_min; font.max = c.limits.font_max; font.step = 1; font.value = p.font_size;
    label.append(font, output);
    font.addEventListener('input', () => { output.value = font.value; });
    const rememberLabel = node('label', ui.remember_page), remember = node('input');
    remember.type = 'checkbox'; remember.checked = p.remember_page; rememberLabel.prepend(remember);
    const status = node('p'); status.setAttribute('role', 'status');
    const theme=themeField(c,p,value=>{p.theme=value;applyTheme(c,p);});
    const followLabel=node('label',ui.follow_audio),follow=node('input');follow.type='checkbox';follow.checked=p.follow_audio;followLabel.prepend(follow);
    const partitionLabel=node('label',ui.show_partition_status),partitionToggle=node('input');partitionToggle.type='checkbox';partitionToggle.checked=p.show_partition_status;partitionLabel.prepend(partitionToggle);
    const swipeLabel=node('label',ui.show_swipe_hint),swipeToggle=node('input');swipeToggle.type='checkbox';swipeToggle.checked=p.show_swipe_hint;swipeLabel.prepend(swipeToggle);
    root.append(label, rememberLabel, theme, followLabel, partitionLabel, swipeLabel, button(ui.save, () => {
      p.font_size = Number(font.value); p.remember_page = remember.checked;
      p.follow_audio=follow.checked; p.show_partition_status=partitionToggle.checked; p.show_swipe_hint=swipeToggle.checked;
      if (!p.remember_page) p.page = 1;
      status.textContent = persist(c) ? ui.saved : ui.storage_error;
    }), status);
    panel(ui.settings, root, back, ui);
    applyTheme(c,p);
  }
  window.addEventListener('muslim-clock-popup-leave', () => {
    epoch++;cleanup();cleanup=()=>{};
    const card=document.getElementById('adaptivePopupCard');
    if(card){delete card.dataset.quranTheme;for(const key of ['bg','fg','surface','border','highlight','highlight_fg'])card.style.removeProperty('--quran-'+key);}
  });
  window.addEventListener('muslim-clock-quran-open', event => open(event.detail || {}));
  window.MuslimClockQuran = Object.freeze({open, openSettings, loadData:async()=>data(await config()),
    mountEntry: (parent, back) => mount(parent, back, false),
    mountSettingsEntry: (parent, back) => mount(parent, back, true)});
})();