/* ========================================================
   Kanzul Iman Quran & Tafsir - Adaptive Web Experience
   • Clean Web Icons (Zero Emojis)
   • Authentic Original Fonts: Kona, Kohinoor, Saleem Quran, Noto Nastaliq
   • Desktop: Windows Desktop App (Master-Detail Split Rail)
   • Mobile: Android App (Material 3 Single-Pane + Bottom Nav)
   Color Palette: Deep Gold (#BA8316)
   ======================================================== */

/* Bengali: Kona Font Family */
@font-face {
  font-family: 'KonaBengali';
  src: url('../fonts/kona.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'KonaBengali';
  src: url('../fonts/kona_bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* Bengali: Kohinoor Font Family */
@font-face {
  font-family: 'KohinoorBengali';
  src: url('../fonts/kohinoor.otf') format('opentype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'KohinoorBengali';
  src: url('../fonts/kohinoor_bold.otf') format('opentype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* Arabic: PDMS Saleem Quran */
@font-face {
  font-family: 'SaleemQuran';
  src: url('../fonts/pdms_saleem_quran.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* Arabic: Al Qalam Quran Majeed */
@font-face {
  font-family: 'AlQalamQuran';
  src: url('../fonts/alqalam_quran_majeed.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* Urdu: Noto Nastaliq */
@font-face {
  font-family: 'UrduNastaliq';
  src: url('../fonts/noto_nastaliq_urdu.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  --primary-gold: #BA8316;
  --primary-gold-dark: #996B0E;
  --primary-gold-light: #C99522;
  --gold-tint: rgba(186, 131, 22, 0.12);
  --gold-glow: rgba(186, 131, 22, 0.25);
  
  --bg-color: #14161D;
  --surface-color: #1B1E27;
  --card-bg: #222632;
  --card-border: rgba(186, 131, 22, 0.22);
  --text-main: #F3F4F6;
  --text-muted: #9CA3AF;
  --badge-bg: rgba(186, 131, 22, 0.15);

  --arabic-size: 28px;
  --trans-size: 16px;
  --tafsir-size: 15px;

  /* Default Core Fonts */
  --font-bengali: 'KonaBengali', 'KohinoorBengali', sans-serif;
  --font-arabic: 'SaleemQuran', 'AlQalamQuran', serif;
  --font-urdu: 'UrduNastaliq', serif;
}

/* Theme: Light */
body.theme-light {
  --bg-color: #F8F9FA;
  --surface-color: #FFFFFF;
  --card-bg: #FFFFFF;
  --card-border: rgba(186, 131, 22, 0.28);
  --text-main: #1A1D20;
  --text-muted: #555B66;
  --badge-bg: rgba(186, 131, 22, 0.12);
  --gold-tint: rgba(186, 131, 22, 0.08);
}

/* Theme: Sepia (Parchment) */
body.theme-sepia {
  --bg-color: #F5EFEB;
  --surface-color: #EFE8E2;
  --card-bg: #FAF6F2;
  --card-border: rgba(186, 131, 22, 0.35);
  --text-main: #2C2623;
  --text-muted: #6A615B;
  --badge-bg: rgba(186, 131, 22, 0.18);
  --gold-tint: rgba(186, 131, 22, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-bengali);
  line-height: 1.6;
  overflow: hidden;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  transition: background-color 0.25s ease, color 0.25s ease;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100%;
  height: 100dvh;
  width: 100%;
  width: 100vw;
  overflow: hidden;
}

.ui-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  flex-shrink: 0;
}

/* ========================================================
   App Header
   ======================================================== */
.app-header {
  height: calc(env(safe-area-inset-top) + 64px);
  padding-top: env(safe-area-inset-top);
  background: var(--surface-color);
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 16px;
  padding-right: 16px;
  z-index: 100;
  flex-shrink: 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  border: 1px solid var(--primary-gold);
}

.brand-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-gold);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 11px;
  color: var(--text-muted);
}

/* Official Store Badges */
.store-badges-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.store-badge-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  text-decoration: none;
  transition: all 0.2s ease;
}

.store-badge-btn:hover {
  border-color: var(--primary-gold);
  background: var(--gold-tint);
  transform: translateY(-1px);
}

.store-badge-btn.active {
  border-color: var(--primary-gold);
  background: var(--gold-tint);
}

.badge-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.web-badge .badge-icon { color: var(--primary-gold); }
.win-badge .badge-icon { color: #00ADEF; }
.play-badge .badge-icon { color: #00E676; }

/* Language Switcher Pill in Top Bar */
.lang-selector-group {
  display: flex;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 2px;
  gap: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1.2;
}

.lang-btn:hover {
  color: var(--primary-gold);
}

.lang-btn.active {
  background: var(--primary-gold);
  color: #1a160d;
}

.lang-setting-btn {
  flex: 1;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-setting-btn:hover {
  border-color: var(--primary-gold);
  color: var(--text-main);
}

.lang-setting-btn.active {
  background: var(--primary-gold);
  border-color: var(--primary-gold);
  color: #1a160d;
  font-weight: 700;
}

/* Urdu Typography Mode */
body.lang-ur {
  font-family: var(--font-urdu);
}
body.lang-ur .brand-title,
body.lang-ur .brand-subtitle,
body.lang-ur .surah-name-local,
body.lang-ur .drawer-title,
body.lang-ur .setting-label {
  font-family: var(--font-urdu);
}
body.lang-ur .ayat-trans-ur {
  font-size: calc(var(--trans-size) * 1.05);
  line-height: 1.9;
}

.badge-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.1;
}

.badge-sub {
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-main {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-gold);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-icon:hover, .btn-icon.active {
  background: var(--primary-gold);
  color: #FFFFFF;
  border-color: var(--primary-gold);
}

/* ========================================================
   Workspace Layout (Desktop Split vs Mobile Single)
   ======================================================== */
.workspace-layout {
  display: flex;
  flex: 1;
  height: calc(100vh - 64px);
  overflow: hidden;
}

/* Sidebar Pane */
.sidebar-pane {
  display: flex;
  flex-direction: column;
  background: var(--surface-color);
  border-right: 1px solid var(--card-border);
  overflow: hidden;
}

.sidebar-tabs {
  display: flex;
  background: var(--card-bg);
  padding: 6px;
  gap: 4px;
  border-bottom: 1px solid var(--card-border);
}

.sidebar-tab {
  flex: 1;
  padding: 8px 4px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
  font-family: var(--font-bengali);
}

.sidebar-tab.active {
  background: var(--primary-gold);
  color: #FFFFFF;
}

.sidebar-search-box {
  padding: 10px 12px;
  border-bottom: 1px solid var(--card-border);
}

.sidebar-search-input {
  width: 100%;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-main);
  font-size: 13px;
  outline: none;
  font-family: var(--font-bengali);
}

.sidebar-search-input:focus {
  border-color: var(--primary-gold);
}

.sidebar-list-container {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.sidebar-list-item {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  margin-bottom: 6px;
  background: var(--card-bg);
  transition: all 0.15s ease;
}

.sidebar-list-item:hover {
  border-color: var(--primary-gold);
  background: var(--gold-tint);
}

.sidebar-list-item.active {
  border-color: var(--primary-gold);
  background: var(--gold-tint);
  box-shadow: 0 0 10px var(--gold-glow);
}

.item-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--badge-bg);
  color: var(--primary-gold);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary-gold);
  flex-shrink: 0;
  margin-right: 10px;
}

.item-info {
  flex: 1;
  min-width: 0;
}

.item-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.item-sub {
  font-size: 11px;
  color: var(--text-muted);
}

.item-ar {
  font-family: var(--font-arabic);
  font-size: 20px;
  color: var(--primary-gold);
  direction: rtl;
  margin-left: 8px;
}

/* Reading Pane */
.reading-pane {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  background: var(--bg-color);
  -webkit-overflow-scrolling: touch;
}

.desktop-welcome-box {
  text-align: center;
  padding: 60px 20px;
}

.welcome-emblem {
  margin-bottom: 20px;
}

.welcome-btn {
  background: var(--card-bg);
  border: 1px solid var(--primary-gold);
  color: var(--primary-gold);
  padding: 10px 18px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-bengali);
}

.welcome-btn:hover {
  background: var(--primary-gold);
  color: #FFFFFF;
}

/* ========================================================
   Reader View Components
   ======================================================== */
.reader-header {
  background: var(--surface-color);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 20px;
  text-align: center;
  box-shadow: 0 3px 12px rgba(0,0,0,0.15);
}

.reader-title-ar {
  font-family: var(--font-arabic);
  font-size: 34px;
  color: var(--primary-gold);
  margin-bottom: 6px;
  direction: rtl;
}

.reader-title-bn {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.reader-bismillah {
  font-family: var(--font-arabic);
  font-size: 28px;
  color: var(--primary-gold-dark);
  margin-top: 14px;
  direction: rtl;
}

.ayat-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 16px;
  transition: border-color 0.2s, background-color 0.2s;
}

.ayat-card.playing {
  border-color: var(--primary-gold);
  background-color: var(--gold-tint);
  box-shadow: 0 0 15px var(--gold-glow);
}

.ayat-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--card-border);
}

.ayat-badge {
  background: var(--badge-bg);
  color: var(--primary-gold);
  padding: 4px 10px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: 700;
  border: 1px solid var(--primary-gold);
}

.ayat-actions {
  display: flex;
  gap: 8px;
}

.ayat-btn {
  background: transparent;
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  font-family: var(--font-bengali);
}

.ayat-btn:hover {
  background: var(--primary-gold);
  color: #FFFFFF;
  border-color: var(--primary-gold);
}

.ayat-arabic {
  font-family: var(--font-arabic);
  font-size: var(--arabic-size);
  line-height: 2.2;
  text-align: right;
  direction: rtl;
  margin-bottom: 16px;
  color: var(--text-main);
  padding: 4px 0;
}

.ayat-trans-bn {
  font-size: var(--trans-size);
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.8;
  font-weight: 500;
}

.ayat-trans-ur {
  font-family: var(--font-urdu);
  font-size: calc(var(--trans-size) + 4px);
  color: var(--text-main);
  direction: rtl;
  text-align: right;
  margin-bottom: 10px;
  line-height: 2.0;
}

.ayat-trans-en {
  font-size: calc(var(--trans-size) - 1px);
  color: var(--text-muted);
  margin-bottom: 10px;
  font-style: italic;
}

/* Surah Header Card with Makki / Madani Artwork */
.surah-header-card {
  background: linear-gradient(135deg, var(--card-bg) 0%, var(--gold-tint) 100%);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 20px 24px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  position: relative;
  overflow: hidden;
}

.surah-header-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-gold);
}

.surah-header-info {
  flex: 1;
}

.reader-title-ar {
  font-family: var(--font-arabic);
  font-size: calc(var(--arabic-size) * 1.25);
  color: var(--primary-gold);
  margin-bottom: 4px;
  line-height: 1.4;
}

.reader-title-local {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.surah-meaning {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-muted);
}

.reader-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.surah-header-artwork {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.surah-artwork-img {
  width: 86px;
  height: 86px;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.28));
  transition: transform 0.3s ease;
}

.surah-artwork-img:hover {
  transform: scale(1.06);
}

/* Surah Quick Actions Pill Bar */
.surah-quick-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.surah-action-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  line-height: 1.2;
}

.surah-action-pill:hover,
.surah-action-pill.active {
  border-color: var(--primary-gold);
  background: var(--gold-tint);
  color: var(--primary-gold);
}

/* Makki & Madani Pills and List Icons */
.type-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
}

.makki-pill {
  background: rgba(186, 131, 22, 0.16);
  border: 1px solid rgba(186, 131, 22, 0.35);
  color: var(--primary-gold);
}

.madani-pill {
  background: rgba(1, 135, 95, 0.16);
  border: 1px solid rgba(1, 135, 95, 0.35);
  color: #10B981;
}

.list-type-icon {
  width: 16px;
  height: 16px;
  object-fit: contain;
  vertical-align: middle;
}

/* Tafsir Accordion & Structured Formatter */
.tafsir-box {
  margin-top: 14px;
  background: var(--gold-tint);
  border: 1px solid rgba(186, 131, 22, 0.25);
  border-left: 4px solid var(--primary-gold);
  border-radius: 10px;
  padding: 16px 18px;
  font-size: var(--tafsir-size);
  line-height: 1.85;
  display: none;
  animation: fadeInTafsir 0.2s ease-out;
}

@keyframes fadeInTafsir {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.tafsir-box.open {
  display: block;
}

.tafsir-header {
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(186, 131, 22, 0.2);
  padding-bottom: 8px;
}

.tafsir-shaan {
  background: rgba(186, 131, 22, 0.12);
  border: 1px solid rgba(186, 131, 22, 0.25);
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: calc(var(--tafsir-size) - 1px);
  color: var(--text-main);
  line-height: 1.7;
}

.tafsir-shaan strong {
  color: var(--primary-gold);
}

/* Tafsir Preamble / Introduction Box */
.tafsir-preamble {
  background: rgba(186, 131, 22, 0.08);
  border: 1px solid rgba(186, 131, 22, 0.25);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 12px;
}

.tafsir-preamble-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 6px;
  font-size: calc(var(--tafsir-size) * 0.98);
}

.tafsir-preamble-body {
  font-size: var(--tafsir-size);
  color: var(--text-main);
  line-height: 1.8;
  text-align: justify;
}

/* Tafsir Note Card (টীকা কার্ডসমূহ) */
.tafsir-note-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 12px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.tafsir-note-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.tafsir-note-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--primary-gold);
  color: #fff;
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 6px;
  line-height: 1.2;
}

.tafsir-note-topic {
  font-weight: 700;
  color: var(--primary-gold);
  font-size: calc(var(--tafsir-size) * 1.02);
}

/* Quoted Quranic Verse in Tafsir (Centered Box) */
.tafsir-quran-quote {
  background: rgba(186, 131, 22, 0.1);
  border: 1px solid rgba(186, 131, 22, 0.3);
  border-radius: 8px;
  padding: 8px 14px;
  margin: 8px 0 10px;
  text-align: center;
  direction: rtl;
}

.tafsir-quote-ar {
  font-family: var(--font-arabic);
  font-size: calc(var(--tafsir-size) * 1.35);
  font-weight: 700;
  color: var(--primary-gold);
  line-height: 1.6;
}

/* Inline Arabic in Tafsir Body (Hadith quotes, verse parts) */
.tafsir-inline-ar {
  font-family: var(--font-arabic);
  font-size: calc(var(--tafsir-size) * 1.15);
  color: var(--primary-gold-dark, #d69818);
  font-weight: 600;
  padding: 0 4px;
  direction: rtl;
  display: inline-block;
  line-height: 1.5;
}

/* Inline Reference Tag [ ... ] */
.tafsir-inline-ref {
  font-size: 11.5px;
  color: var(--text-muted);
  font-style: italic;
  padding: 0 2px;
}

.tafsir-note-body {
  font-size: var(--tafsir-size);
  color: var(--text-main);
  line-height: 1.82;
  text-align: justify;
}

/* Mushaf View */
.mushaf-container {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 28px;
  line-height: 2.6;
  text-align: justify;
  direction: rtl;
  font-family: var(--font-arabic);
  font-size: var(--arabic-size);
}

.mushaf-aya-end {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--primary-gold);
  color: var(--primary-gold);
  font-size: 14px;
  margin: 0 4px;
  vertical-align: middle;
  background: var(--badge-bg);
  cursor: pointer;
}

/* Tajweed Classes */
.tajweed-ghunna { color: #FF7F00; font-weight: bold; }
.tajweed-ikhfa { color: #29B6F6; font-weight: bold; }
.tajweed-qalqalah { color: #4CAF50; font-weight: bold; }
.tajweed-iqlab { color: #AB47BC; font-weight: bold; }
.tajweed-madd { color: #EC407A; font-weight: bold; }

/* ========================================================
   Floating Audio Player Bar
   ======================================================== */
.audio-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(env(safe-area-inset-bottom) + 68px);
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--surface-color);
  border-top: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 20px;
  padding-right: 20px;
  z-index: 150;
  box-shadow: 0 -3px 15px rgba(0,0,0,0.3);
  display: none;
}

.audio-bar.active {
  display: flex;
}

.audio-info {
  display: flex;
  flex-direction: column;
}

.audio-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-gold);
}

.audio-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.audio-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-play {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-gold);
  color: #FFFFFF;
  border: none;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 8px var(--gold-glow);
}

/* ========================================================
   Mobile Promo & Bottom Navigation
   ======================================================== */
.mobile-store-promo {
  padding: 16px;
  background: var(--gold-tint);
  border-top: 1px solid var(--card-border);
  display: none;
}

.promo-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 8px;
  text-align: center;
}

.promo-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.promo-btn {
  text-decoration: none;
  text-align: center;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.web-btn {
  background: var(--primary-gold);
  color: #1a160d;
}

.web-btn:hover {
  background: var(--primary-gold-dark);
  color: #ffffff;
}

.win-btn {
  background: #0078D4;
  color: #FFFFFF;
}

.play-btn {
  background: #01875F;
  color: #FFFFFF;
}

.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(env(safe-area-inset-bottom) + 56px);
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--surface-color);
  border-top: 1px solid var(--card-border);
  z-index: 120;
  justify-content: space-around;
  align-items: center;
}

.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px 0;
  transition: all 0.2s;
  font-family: var(--font-bengali);
}

.bottom-nav-item.active {
  color: var(--primary-gold);
}

.nav-icon {
  margin-bottom: 2px;
}

.nav-label {
  font-size: 11px;
  font-weight: 700;
}

/* ========================================================
   Settings Drawer & Modals
   ======================================================== */
.drawer-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.drawer-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.settings-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 360px;
  max-width: 85vw;
  background: var(--surface-color);
  z-index: 210;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 20px;
  overflow-y: auto;
  box-shadow: -4px 0 20px rgba(0,0,0,0.3);
}

.settings-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--card-border);
}

.drawer-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-gold);
}

.setting-group {
  margin-bottom: 20px;
}

.setting-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
}

.setting-slider {
  width: 100%;
  accent-color: var(--primary-gold);
}

.theme-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.theme-btn {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text-main);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  font-family: var(--font-bengali);
}

.theme-btn.active {
  border-color: var(--primary-gold);
  background: var(--gold-tint);
  color: var(--primary-gold);
}

.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(50px);
  background: #1A1D20;
  color: #FFFFFF;
  border: 1px solid var(--primary-gold);
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 13px;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 300;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
  pointer-events: none;
  font-family: var(--font-bengali);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 250;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 80px;
}

.modal-overlay.open {
  display: flex;
}

.modal-content {
  background: var(--surface-color);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  width: 90%;
  max-width: 500px;
  padding: 16px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}

.search-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--primary-gold);
  background: var(--card-bg);
  color: var(--text-main);
  font-size: 16px;
  outline: none;
  font-family: var(--font-bengali);
}

.search-results {
  max-height: 350px;
  overflow-y: auto;
  margin-top: 12px;
}

.search-item {
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--card-border);
}

.search-item:hover {
  background: var(--gold-tint);
}

/* ========================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ======================================================== */

@media (min-width: 1024px) {
  /* Desktop Windows Split Layout */
  .sidebar-pane {
    width: 360px;
    flex-shrink: 0;
  }

  .reading-pane {
    padding: 30px 40px;
  }

  .mobile-bottom-nav {
    display: none !important;
  }

  .mobile-back-btn {
    display: none !important;
  }

  .store-badges-container {
    display: flex;
  }

  .mobile-store-promo {
    display: block;
  }
}

@media (max-width: 1023px) {
  /* Mobile Android App Experience */
  .store-badges-container {
    display: none !important;
  }

  .mobile-store-promo {
    display: none !important;
  }

  .mobile-bottom-nav {
    display: flex;
  }

  .workspace-layout {
    height: calc(100vh - 64px - 56px);
    height: calc(100dvh - 56px - 56px);
  }

  /* Audio Bar Docked Above Bottom Nav */
  .audio-bar {
    bottom: calc(56px + env(safe-area-inset-bottom)) !important;
    height: 54px !important;
    padding: 0 14px !important;
    z-index: 110 !important;
    box-shadow: 0 -3px 14px rgba(0,0,0,0.35) !important;
  }

  .audio-info {
    flex: 1;
    min-width: 0;
    margin-right: 8px;
  }

  .audio-title {
    font-size: 13px !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .audio-meta {
    font-size: 11px !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .audio-controls {
    gap: 6px !important;
    flex-shrink: 0;
  }

  .audio-controls .ayat-btn {
    padding: 4px 6px !important;
    width: 32px !important;
    height: 32px !important;
    justify-content: center;
  }

  .audio-controls .btn-play {
    width: 36px !important;
    height: 36px !important;
    font-size: 16px !important;
  }

  /* Reading Pane Bottom Scroll Clearances */
  .reading-pane {
    padding-bottom: calc(76px + env(safe-area-inset-bottom)) !important;
    -webkit-overflow-scrolling: touch;
    overflow-y: auto;
    overscroll-behavior-y: contain;
  }

  .sidebar-list-container {
    padding-bottom: calc(70px + env(safe-area-inset-bottom)) !important;
    -webkit-overflow-scrolling: touch;
    overflow-y: auto;
    overscroll-behavior-y: contain;
  }

  /* When Audio is Active: Extra bottom clearance */
  body.audio-playing .reading-pane {
    padding-bottom: calc(130px + env(safe-area-inset-bottom)) !important;
  }

  body.audio-playing .sidebar-list-container {
    padding-bottom: calc(125px + env(safe-area-inset-bottom)) !important;
  }

  /* Single-Pane Switcher: Reader vs List */
  body.mobile-reader-active .sidebar-pane {
    display: none !important;
  }

  body.mobile-reader-active .reading-pane {
    display: block !important;
    width: 100% !important;
  }

  body.mobile-reader-active .brand-icon {
    display: none !important;
  }

  body.mobile-reader-active .mobile-back-btn {
    display: flex !important;
  }

  body:not(.mobile-reader-active) .reading-pane {
    display: none !important;
  }

  body:not(.mobile-reader-active) .sidebar-pane {
    display: flex !important;
    width: 100% !important;
    border-right: none;
  }

  body:not(.mobile-reader-active) .mobile-back-btn {
    display: none !important;
  }
}

/* ========================================================
   Smartphones & Compact Screens (< 600px)
   ======================================================== */
@media (max-width: 600px) {
  .app-header {
    height: calc(env(safe-area-inset-top) + 56px) !important;
    padding: env(safe-area-inset-top) 12px 0 12px !important;
  }

  .header-left {
    gap: 8px !important;
    min-width: 0 !important;
    flex: 1;
  }

  .brand-icon {
    width: 32px !important;
    height: 32px !important;
    border-radius: 8px !important;
    flex-shrink: 0;
  }

  .brand-title {
    font-size: 16px !important;
    font-weight: 700 !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    max-width: 140px !important;
  }

  body.mobile-reader-active .brand-title {
    max-width: calc(100vw - 180px) !important;
    font-size: 15.5px !important;
  }

  .brand-subtitle {
    display: none !important;
  }

  .header-actions {
    gap: 5px !important;
    flex-shrink: 0;
  }

  .lang-selector-group {
    padding: 2px !important;
    gap: 1px !important;
  }

  .lang-btn {
    padding: 3px 6px !important;
    font-size: 10.5px !important;
  }

  .btn-icon {
    width: 36px !important;
    height: 36px !important;
    border-radius: 8px !important;
  }

  /* Hide redundant header toggles on phones - accessible in Surah Header Card */
  #btnTajweed,
  #btnMushaf {
    display: none !important;
  }

  .mobile-back-btn {
    width: 36px !important;
    height: 36px !important;
    border-radius: 8px !important;
    margin-right: 2px !important;
  }

  /* Workspace */
  .workspace-layout {
    height: calc(100dvh - 56px - 56px) !important;
  }

  .sidebar-tabs {
    display: none !important; /* Bottom nav handles all tab switching */
  }

  .sidebar-search-box {
    padding: 8px 10px !important;
  }

  .sidebar-search-input {
    padding: 7px 10px !important;
    font-size: 12.5px !important;
  }

  .sidebar-list-item {
    padding: 10px 12px !important;
    margin-bottom: 5px !important;
    border-radius: 9px !important;
  }

  .item-num {
    width: 28px !important;
    height: 28px !important;
    font-size: 12px !important;
    margin-right: 8px !important;
  }

  .item-title {
    font-size: 14.5px !important;
  }

  .item-sub {
    font-size: 10.5px !important;
  }

  .item-ar {
    font-size: 19px !important;
  }

  /* Reading Pane */
  body.mobile-reader-active .reading-pane {
    padding: 14px 12px calc(76px + env(safe-area-inset-bottom)) 12px !important;
  }

  body.mobile-reader-active.audio-playing .reading-pane {
    padding-bottom: calc(130px + env(safe-area-inset-bottom)) !important;
  }

  /* Surah Header Card */
  .surah-header-card {
    padding: 14px 14px !important;
    margin-bottom: 16px !important;
    border-radius: 12px !important;
    gap: 12px !important;
  }

  .surah-artwork-img {
    width: 62px !important;
    height: 62px !important;
  }

  .reader-title-ar {
    font-size: 25px !important;
    line-height: 1.35 !important;
  }

  .reader-title-local {
    font-size: 15px !important;
    margin-bottom: 6px !important;
  }

  .reader-meta {
    font-size: 11.5px !important;
    gap: 6px !important;
  }

  .surah-action-pill {
    padding: 5px 9px !important;
    font-size: 11px !important;
    gap: 4px !important;
  }

  /* Ayat Cards */
  .ayat-card {
    padding: 12px 12px 10px 12px !important;
    margin-bottom: 12px !important;
    border-radius: 10px !important;
  }

  .ayat-top-bar {
    margin-bottom: 10px !important;
    padding-bottom: 8px !important;
    flex-wrap: wrap !important;
    gap: 6px !important;
  }

  .ayat-badge {
    padding: 2px 7px !important;
    font-size: 11px !important;
  }

  .ayat-actions {
    gap: 4px !important;
    flex-wrap: wrap !important;
  }

  .ayat-btn {
    padding: 4px 7px !important;
    font-size: 11.5px !important;
    gap: 4px !important;
  }

  .ayat-arabic {
    font-size: calc(var(--arabic-size) * 0.92) !important;
    line-height: 2.05 !important;
    margin-bottom: 12px !important;
  }

  .ayat-trans-bn {
    font-size: calc(var(--trans-size) * 0.94) !important;
    line-height: 1.7 !important;
    margin-bottom: 8px !important;
  }

  .ayat-trans-ur {
    font-size: calc(var(--trans-size) * 1.05) !important;
    line-height: 1.9 !important;
    margin-bottom: 8px !important;
  }

  .ayat-trans-en {
    font-size: calc(var(--trans-size) * 0.88) !important;
    line-height: 1.6 !important;
    margin-bottom: 8px !important;
  }

  .tafsir-box {
    padding: 12px 12px !important;
    font-size: calc(var(--tafsir-size) * 0.94) !important;
    line-height: 1.78 !important;
  }

  .tafsir-quote-ar {
    font-size: calc(var(--tafsir-size) * 1.2) !important;
  }

  .mushaf-container {
    padding: 18px 12px !important;
    font-size: calc(var(--arabic-size) * 0.88) !important;
    line-height: 2.3 !important;
  }

  /* Modals */
  .modal-overlay {
    padding-top: 20px !important;
  }

  .modal-content {
    width: 94% !important;
    padding: 14px !important;
  }

  .settings-drawer {
    width: 320px !important;
    padding: 16px !important;
  }
}