/* ==========================================================================
   Hindi Vedabase (हिन्दी वेदबेस) - Modern Vedic Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Mukta:wght@300;400;500;600;700&family=Noto+Serif+Devanagari:wght@400;600;700;800&family=Outfit:wght@400;500;600;700&family=Tiro+Devanagari+Sanskrit:ital@0;1&display=swap');

:root {
  /* Sattvic Dark Theme (Default) */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f293d;
  --bg-card: rgba(17, 24, 39, 0.85);
  --bg-glass: rgba(17, 24, 39, 0.75);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-saffron: #f97316;
  --accent-gold: #f59e0b;
  --accent-gold-light: #fde68a;
  --accent-ruby: #e11d48;
  --accent-emerald: #10b981;
  --accent-cyan: #06b6d4;

  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(245, 158, 11, 0.4);
  --border-active: #f59e0b;

  --card-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
  --glow-saffron: 0 0 20px rgba(249, 115, 22, 0.25);
  --glow-gold: 0 0 25px rgba(245, 158, 11, 0.3);

  --font-sanskrit: 'Tiro Devanagari Sanskrit', 'Noto Serif Devanagari', 'Sanskrit Text', Georgia, serif;
  --font-devanagari: 'Noto Serif Devanagari', 'Mukta', 'Mangal', serif;
  --font-sans: 'Mukta', 'Outfit', system-ui, -apple-system, sans-serif;
  
  --sanskrit-size: 1.5rem;
  --hindi-size: 1.125rem;
  --line-height-base: 1.7;
}

[data-theme="light"] {
  --bg-primary: #fbf9f5;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f3eee3;
  --bg-card: rgba(255, 255, 255, 0.95);
  --bg-glass: rgba(255, 255, 255, 0.85);

  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-muted: #78716c;

  --accent-saffron: #ea580c;
  --accent-gold: #d97706;
  --accent-gold-light: #fef3c7;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(217, 119, 6, 0.4);
  --border-active: #d97706;

  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.05);
  --glow-saffron: 0 0 15px rgba(234, 88, 12, 0.15);
  --glow-gold: 0 0 20px rgba(217, 119, 6, 0.15);
}

[data-theme="sepia"] {
  --bg-primary: #f5eedc;
  --bg-secondary: #eae0ca;
  --bg-tertiary: #dfd2b5;
  --bg-card: rgba(234, 224, 202, 0.95);
  --bg-glass: rgba(234, 224, 202, 0.85);

  --text-primary: #3d2f1d;
  --text-secondary: #63503a;
  --text-muted: #8c7358;

  --accent-saffron: #c2410c;
  --accent-gold: #b45309;
  --accent-gold-light: #fae8b6;

  --border-color: rgba(100, 70, 40, 0.15);
  --border-hover: rgba(180, 83, 9, 0.4);
  --border-active: #b45309;

  --card-shadow: 0 10px 25px -5px rgba(61, 47, 29, 0.08);
  --glow-saffron: 0 0 15px rgba(194, 65, 12, 0.15);
  --glow-gold: 0 0 20px rgba(180, 83, 9, 0.2);
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: var(--line-height-base);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
}

/* ==========================================================================
   Header & Navbar (Glassmorphism Design)
   ========================================================================== */

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(245, 158, 11, 0.2);
  padding: 0.75rem 1.75rem;
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.25);
  transition: all 0.3s ease;
}

[data-theme="light"] .app-header {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.06);
}

[data-theme="sepia"] .app-header {
  background: rgba(249, 245, 235, 0.96);
  border-bottom: 1px solid rgba(217, 119, 6, 0.22);
  box-shadow: 0 2px 14px rgba(69, 26, 3, 0.06);
}

.header-container {
  max-width: 1480px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  user-select: none;
  transition: opacity 0.2s ease;
  padding: 3px 0;
}

.logo-group:hover {
  opacity: 0.92;
}

.app-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(245, 158, 11, 0.4));
  transition: transform 0.2s ease;
}

.logo-group:hover .app-logo-icon {
  transform: scale(1.06);
}

.logo-text {
  display: flex;
  align-items: center;
  padding-top: 4px;
}

.logo-text h1 {
  font-family: var(--font-devanagari);
  font-size: 1.65rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-saffron));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.02em;
  line-height: 1.35;
  margin: 0;
  padding: 2px 0;
}

/* Header Action Controls */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.header-icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.header-icon-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: rgba(245, 158, 11, 0.12);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
}

[data-theme="light"] .header-icon-btn {
  background: #f8fafc;
  border-color: #e2e8f0;
}

[data-theme="light"] .header-icon-btn:hover {
  background: #fef3c7;
  border-color: #f59e0b;
}

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

.btn-icon:hover {
  color: var(--accent-gold);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-action {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.9rem;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-presentation {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(249, 115, 22, 0.2));
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.4);
  cursor: pointer;
}

.btn-presentation:hover {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.35), rgba(249, 115, 22, 0.35));
  border-color: var(--accent-gold);
  color: var(--accent-gold-light);
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-saffron), var(--accent-gold));
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* ==========================================================================
   Main App Layout
   ========================================================================== */

.app-main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.5rem;
  flex: 1;
  width: 100%;
}

/* ==========================================================================
   Sidebar: Scriptures & Cantos Hierarchical Navigation
   ========================================================================== */

.sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  height: calc(100vh - 110px);
  position: sticky;
  top: 85px;
  overflow-y: auto;
  box-shadow: var(--card-shadow);
}

.sidebar-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.65rem;
}

.sidebar-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Scripture Collection Hierarchy */
.scripture-collection {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.scripture-group {
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  overflow: hidden;
  transition: all 0.2s ease;
}

.scripture-group.active {
  border-color: rgba(245, 158, 11, 0.4);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.scripture-header-btn {
  width: 100%;
  text-align: left;
  padding: 0.75rem 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.scripture-header-btn:hover {
  background: var(--bg-tertiary);
}

.scripture-info {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.scripture-icon {
  font-size: 1.35rem;
  line-height: 1;
}

.scripture-titles {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.scripture-name {
  font-family: var(--font-devanagari);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-gold);
  line-height: 1.2;
}

.scripture-badge {
  font-size: 0.725rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.scripture-arrow {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.scripture-group.expanded .scripture-arrow {
  transform: rotate(180deg);
}

.scripture-group .canto-list {
  display: none;
  list-style: none;
  padding: 0.4rem 0.5rem 0.6rem 0.5rem;
  flex-direction: column;
  gap: 0.35rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
}

.scripture-group.expanded .canto-list {
  display: flex;
}

.canto-item {
  border-radius: 9px;
  border: 1px solid transparent;
  overflow: hidden;
  transition: all 0.2s ease;
}

.canto-header-btn {
  width: 100%;
  text-align: left;
  padding: 0.55rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.canto-header-btn:hover {
  background: var(--bg-tertiary);
  color: var(--accent-gold);
}

.canto-item.active .canto-header-btn {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.chapter-sublist {
  list-style: none;
  padding: 0.3rem 0.4rem 0.4rem 0.85rem;
  display: none;
  flex-direction: column;
  gap: 0.2rem;
}

.canto-item.expanded .chapter-sublist {
  display: flex;
}

.chapter-btn {
  width: 100%;
  text-align: left;
  padding: 0.35rem 0.55rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: all 0.15s ease;
}

.chapter-btn:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.chapter-btn.active {
  color: var(--accent-saffron);
  font-weight: 600;
  background: rgba(249, 115, 22, 0.12);
}

/* ==========================================================================
   Content Area & Verse Cards
   ========================================================================== */

.content-area {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  min-width: 0;
}

/* Main Sloka Container Card */
.sloka-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.sloka-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-saffron), var(--accent-gold), var(--accent-saffron));
}

/* Card Header Controls */
.sloka-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

/* Interactive Verse Number Selector Bar */
.verse-selector-strip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0.5rem 0.85rem;
  overflow: hidden;
}

.verse-strip-label {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--accent-gold);
  white-space: nowrap;
}

.verse-strip-scroll {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 2px;
  scrollbar-width: none !important;
  -ms-overflow-style: none !important;
}

.verse-strip-scroll::-webkit-scrollbar {
  display: none !important;
  width: 0 !important;
  height: 0 !important;
}

.verse-strip-btn {
  min-width: 34px;
  height: 32px;
  padding: 0 0.5rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
  cursor: pointer;
  flex-shrink: 0;
}

.verse-strip-btn:hover {
  border-color: var(--accent-saffron);
  color: var(--accent-saffron);
  transform: translateY(-1px);
}

.verse-strip-btn.active {
  background: var(--accent-saffron) !important;
  color: #ffffff !important;
  border-color: var(--accent-saffron) !important;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(234, 88, 12, 0.4);
}

.verse-strip-btn.has-data {
  background: rgba(245, 158, 11, 0.15);
  border-color: #d97706;
  color: #b45309;
  font-weight: 800;
}

[data-theme="dark"] .verse-strip-btn.has-data {
  background: rgba(245, 158, 11, 0.2);
  border-color: #f59e0b;
  color: #fde047;
}

.verse-badge-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.verse-key-badge {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-saffron));
  color: #000;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.35rem 0.85rem;
  border-radius: 8px;
  letter-spacing: 0.02em;
}

.badge-user-edited {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(6, 182, 212, 0.2));
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.3rem 0.75rem;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

[data-theme="light"] .badge-user-edited {
  background: #ecfdf5;
  color: #047857;
  border-color: #a7f3d0;
}

[data-theme="sepia"] .badge-user-edited {
  background: #f0fdf4;
  color: #15803d;
  border-color: #bbf7d0;
}

.chapter-title-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.verse-tool-buttons {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.tool-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.15s ease;
}

.tool-btn:hover {
  color: var(--accent-gold);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.tool-btn.active {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

/* Sanskrit Verse Display */
.sanskrit-verse-box {
  text-align: center;
  padding: 1.5rem 1rem;
  background: rgba(245, 158, 11, 0.03);
  border: 1px solid rgba(245, 158, 11, 0.12);
  border-radius: 14px;
}

.sanskrit-devanagari-text {
  font-family: var(--font-sanskrit);
  font-size: var(--sanskrit-size);
  color: var(--accent-gold-light);
  line-height: 2;
  font-weight: 600;
  white-space: pre-line;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .sanskrit-devanagari-text {
  color: #9a3412;
  text-shadow: none;
}

[data-theme="sepia"] .sanskrit-devanagari-text {
  color: #7c2d12;
  text-shadow: none;
}

.sanskrit-iast-text {
  margin-top: 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-style: italic;
  white-space: pre-line;
  line-height: 1.6;
}

/* Word to Word Breakdown */
.section-title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.word-to-word-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem;
}

.word-chips-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.word-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.22);
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  font-size: 0.925rem;
  line-height: 1.4;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.word-chip:hover {
  background: rgba(245, 158, 11, 0.18);
  border-color: var(--accent-gold);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
}

.word-chip .chip-sanskrit {
  font-family: var(--font-sanskrit);
  font-weight: 700;
  color: var(--accent-gold);
}

.word-chip .chip-sep {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.word-chip .chip-hindi {
  color: var(--text-primary);
  font-family: var(--font-devanagari);
}

[data-theme="light"] .word-chip {
  background: #fdf8ee;
  border: 1px solid #f1e3c8;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .word-chip:hover {
  background: #fef3c7;
  border-color: #f59e0b;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

[data-theme="light"] .word-chip .chip-sanskrit {
  color: #c2410c;
  font-weight: 700;
}

[data-theme="light"] .word-chip .chip-hindi {
  color: #334155;
}

[data-theme="sepia"] .word-chip {
  background: #fbf5e8;
  border: 1px solid #e7d8bd;
}

[data-theme="sepia"] .word-chip:hover {
  background: #f4ebd5;
  border-color: #d97706;
}

[data-theme="sepia"] .word-chip .chip-sanskrit {
  color: #92400e;
  font-weight: 700;
}

[data-theme="sepia"] .word-chip .chip-hindi {
  color: #451a03;
}

/* Hindi Translation Section */
.translation-box {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.06), rgba(249, 115, 22, 0.03));
  border-left: 4px solid var(--accent-gold);
  border-radius: 0 14px 14px 0;
  padding: 1.35rem 1.5rem;
}

.hindi-translation-text {
  font-family: var(--font-devanagari);
  font-size: var(--hindi-size);
  color: var(--text-primary);
  line-height: 1.9;
  font-weight: 500;
  text-align: justify;
  text-justify: inter-word;
  word-break: break-word;
}

/* Hindi Purport (Tatparya) Section */
.purport-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.5rem;
}

.hindi-purport-text {
  font-family: var(--font-devanagari);
  font-size: var(--hindi-size);
  color: var(--text-primary);
  line-height: 1.9;
  font-weight: 400;
  text-align: justify;
  text-justify: inter-word;
  word-break: break-word;
}

.para-block {
  margin-bottom: 1.25rem;
  line-height: 1.9;
}

.para-block:last-child {
  margin-bottom: 0;
}

.verse-quote-block {
  margin: 1.25rem auto;
  padding: 1rem 1.5rem;
  background: rgba(245, 158, 11, 0.06);
  border-left: 4px solid var(--accent-gold);
  border-radius: 8px;
  font-family: var(--font-sanskrit);
  font-size: calc(var(--hindi-size) * 1.05);
  color: var(--accent-gold-light);
  white-space: pre-line;
  text-align: center;
  line-height: 1.9;
}

/* Bottom Verse Navigation Bar */
.sloka-navigation-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
}

.nav-verse-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.2s ease;
  box-shadow: var(--card-shadow);
}

.nav-verse-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-2px);
}

/* ==========================================================================
   Presentation / Slide Show Mode (पूर्ण स्क्रीन व्याख्यान एवं प्रेजेंटेशन मोड)
   ========================================================================== */

.presentation-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--bg-primary);
  display: none;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.presentation-overlay.active {
  display: flex;
}

.presentation-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

/* Subtle Floating Hamburger Trigger Button */
.pres-hamburger-trigger {
  position: fixed;
  top: 16px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  z-index: 100025;
  opacity: 0.35;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  user-select: none;
}

.pres-hamburger-trigger:hover,
.pres-hamburger-trigger.active {
  opacity: 1;
  background: rgba(245, 158, 11, 0.25);
  border-color: var(--accent-gold);
  color: var(--accent-gold-light);
  transform: scale(1.08);
  box-shadow: 0 0 18px rgba(245, 158, 11, 0.45);
}

[data-theme="light"] .pres-hamburger-trigger {
  background: rgba(255, 255, 255, 0.65);
  border-color: rgba(0, 0, 0, 0.12);
  color: #334155;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .pres-hamburger-trigger:hover,
[data-theme="light"] .pres-hamburger-trigger.active {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #b45309;
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.35);
}

[data-theme="sepia"] .pres-hamburger-trigger {
  background: rgba(244, 235, 213, 0.7);
  border-color: rgba(180, 83, 9, 0.25);
  color: #78350f;
}

/* ==========================================================================
   Vaishnava Songs Dedicated Mini Language Trigger & Popover in Projection Mode
   (Compact 40px circle button next to hamburger + floating dropdown menu)
   ========================================================================== */

.pres-vs-lang-trigger {
  position: fixed;
  top: 64px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  display: none !important;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  z-index: 100025;
  opacity: 0.4;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  user-select: none;
}

.pres-lang-btn-text {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1;
}

.presentation-overlay.active .pres-vs-lang-trigger {
  display: flex !important;
}

.pres-vs-lang-trigger:hover,
.pres-vs-lang-trigger.active {
  opacity: 1;
  background: rgba(245, 158, 11, 0.25);
  border-color: var(--accent-gold);
  color: var(--accent-gold-light);
  transform: scale(1.08);
  box-shadow: 0 0 18px rgba(245, 158, 11, 0.45);
}

[data-theme="light"] .pres-vs-lang-trigger {
  background: rgba(255, 255, 255, 0.65);
  border-color: rgba(0, 0, 0, 0.12);
  color: #334155;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .pres-vs-lang-trigger:hover,
[data-theme="light"] .pres-vs-lang-trigger.active {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #b45309;
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.35);
}

[data-theme="sepia"] .pres-vs-lang-trigger {
  background: rgba(244, 235, 213, 0.7);
  border-color: rgba(180, 83, 9, 0.25);
  color: #78350f;
}

[data-theme="sepia"] .pres-vs-lang-trigger:hover,
[data-theme="sepia"] .pres-vs-lang-trigger.active {
  background: #fdf6e7;
  border-color: #d97706;
  color: #78350f;
}

/* Mini Floating Popover Menu */
.pres-vs-popover {
  position: fixed;
  top: 112px;
  right: 20px;
  width: 250px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 16px;
  padding: 0.85rem;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6), 0 0 20px rgba(245, 158, 11, 0.15);
  z-index: 100030;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  animation: popoverFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes popoverFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

[data-theme="light"] .pres-vs-popover {
  background: rgba(255, 255, 255, 0.96);
  border-color: rgba(217, 119, 6, 0.3);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.15), 0 0 20px rgba(217, 119, 6, 0.1);
}

[data-theme="sepia"] .pres-vs-popover {
  background: rgba(253, 246, 231, 0.96);
  border-color: rgba(180, 83, 9, 0.3);
}

.pres-popover-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.9;
}

[data-theme="light"] .pres-popover-title {
  color: #b45309;
}

.pres-popover-row {
  display: flex;
  gap: 0.4rem;
  width: 100%;
}

.pres-popover-row .pres-vs-script-btn {
  flex: 1;
  text-align: center;
  padding: 0.45rem 0.6rem;
  font-size: 0.84rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

[data-theme="light"] .pres-popover-row .pres-vs-script-btn {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #334155;
}

.pres-popover-row .pres-vs-script-btn.active {
  background: var(--accent-gold);
  color: #0f172a;
  border-color: var(--accent-gold);
  font-weight: 700;
}

[data-theme="light"] .pres-popover-row .pres-vs-script-btn.active {
  background: #d97706;
  color: #ffffff;
  border-color: #d97706;
}

.pres-popover-divider {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 0.15rem 0;
}

[data-theme="light"] .pres-popover-divider {
  background: rgba(0, 0, 0, 0.08);
}

.pres-popover-action-btn {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
}

.pres-popover-action-btn:hover {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--accent-gold);
}

.pres-popover-action-btn.active {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.5);
  color: #4ade80;
}

[data-theme="light"] .pres-popover-action-btn {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #1e293b;
}

[data-theme="light"] .pres-popover-action-btn:hover {
  background: #fef3c7;
  border-color: #f59e0b;
}

[data-theme="light"] .pres-popover-action-btn.active {
  background: #dcfce7;
  border-color: #22c55e;
  color: #15803d;
}

/* Presentation Floating Glass Pill Header */
.pres-header {
  position: fixed;
  top: 15px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
  padding: 0.35rem 0.85rem;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 9999px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(245, 158, 11, 0.2);
  z-index: 100010;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 96vw;
  overflow-x: auto;
  scrollbar-width: none;
  white-space: nowrap;
}

.pres-header::-webkit-scrollbar {
  display: none;
}

[data-theme="light"] .pres-header {
  background: rgba(255, 255, 255, 0.94);
  border-color: rgba(217, 119, 6, 0.35);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.12), 0 0 15px rgba(245, 158, 11, 0.15);
}

[data-theme="sepia"] .pres-header {
  background: rgba(249, 245, 235, 0.96);
  border-color: rgba(180, 83, 9, 0.35);
  box-shadow: 0 6px 25px rgba(69, 26, 3, 0.12);
}

.pres-header.pres-hidden {
  opacity: 0;
  transform: translate(-50%, -140%);
  pointer-events: none;
}

.pres-header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  flex-shrink: 0;
}

.pres-badge {
  background: linear-gradient(135deg, var(--accent-saffron), var(--accent-gold));
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.25rem 0.65rem;
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(249, 115, 22, 0.3);
  letter-spacing: 0.02em;
  white-space: nowrap;
  flex-shrink: 0;
}

.pres-chapter-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 240px;
}

.pres-header-center {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.pres-counter {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--accent-gold);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
  white-space: nowrap;
}

.pres-header-right {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

/* Compact Section Multi-Toggle Group */
.pres-toggle-group {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.15rem 0.25rem;
}

.pres-toggle-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 0.2rem 0.45rem;
  border-radius: 5px;
  font-size: 0.775rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.pres-toggle-chip .chip-dot {
  font-size: 0.5rem;
  color: var(--text-muted);
  transition: color 0.15s ease;
}

.pres-toggle-chip:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.pres-toggle-chip.active {
  background: rgba(245, 158, 11, 0.18);
  border-color: rgba(245, 158, 11, 0.35);
  color: var(--accent-gold);
  font-weight: 700;
}

.pres-toggle-chip.active .chip-dot {
  color: #22c55e;
}

.pres-font-group {
  display: flex;
  gap: 0.2rem;
}

.pres-icon-btn {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.pres-icon-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-1px);
}

.btn-exit-pres {
  background: rgba(225, 29, 72, 0.12);
  border-color: rgba(225, 29, 72, 0.3);
  color: #f43f5e;
  font-weight: 700;
}

.btn-exit-pres:hover {
  background: rgba(225, 29, 72, 0.25);
  border-color: #f43f5e;
  color: #fff;
}

/* Presentation Slide Stage */
.presentation-stage {
  --pres-font-scale: 1;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 4.25rem 2rem 5rem 2rem;
  gap: 1.75rem;
  box-sizing: border-box;
}

/* Presentation Slide Top Header Line (श्लोक संख्या एवं ग्रन्थ सन्दर्भ) */
.pres-slide-header {
  width: 100%;
  max-width: 1150px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.25rem 1rem 0.25rem 1rem;
  user-select: none;
  animation: presFadeIn 0.3s ease-out;
}

.pres-slide-badge-row {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin: 0 auto;
}

.pres-slide-badge {
  background: linear-gradient(135deg, var(--accent-saffron), var(--accent-gold));
  color: #ffffff;
  font-weight: 800;
  font-size: calc(1.55rem * var(--pres-font-scale, 1));
  padding: calc(0.45rem * var(--pres-font-scale, 1)) calc(1.45rem * var(--pres-font-scale, 1));
  border-radius: 9999px;
  box-shadow: 0 6px 22px rgba(249, 115, 22, 0.42), 0 0 15px rgba(245, 158, 11, 0.25);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  text-shadow: 0 1.5px 3px rgba(0, 0, 0, 0.4);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
  cursor: pointer;
}

.pres-slide-badge:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 28px rgba(249, 115, 22, 0.55), 0 0 20px rgba(245, 158, 11, 0.4);
  border-color: rgba(255, 255, 255, 0.6);
}

/* Subtle Semi-Transparent Up/Down Arrow Toggle Button (Positioned cleanly without offsetting badge center) */
.pres-slide-toggle-btn {
  position: absolute;
  left: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--accent-gold);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  cursor: pointer;
  opacity: 0.35;
  transition: all 0.2s ease;
  user-select: none;
  flex-shrink: 0;
  box-shadow: none;
  padding: 0;
  line-height: 1;
}

.pres-slide-toggle-btn:hover {
  opacity: 1;
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--accent-gold);
  color: var(--accent-gold-light);
  transform: translateY(-50%) scale(1.15);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.35);
}

.pres-slide-toggle-btn.details-hidden {
  opacity: 0.3;
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--text-muted);
}

.pres-slide-toggle-btn.details-hidden:hover {
  opacity: 1;
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-50%) scale(1.15);
}

/* Collapsible Details Container */
.pres-slide-details-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  max-height: 250px;
  opacity: 1;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, transform 0.3s ease, margin 0.3s ease;
  transform: translateY(0);
}

.pres-slide-details-container.hidden {
  max-height: 0 !important;
  opacity: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  pointer-events: none;
  transform: translateY(-6px);
}

.pres-slide-title {
  font-size: calc(1.2rem * var(--pres-font-scale, 1));
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  line-height: 1.4;
  text-align: center;
  transition: font-size 0.2s ease;
}

.pres-slide-title .pres-title-book {
  color: var(--accent-gold);
  font-weight: 800;
  letter-spacing: 0.02em;
}

.pres-slide-title .pres-title-canto,
.pres-slide-title .pres-title-lila {
  color: var(--text-primary);
  font-weight: 700;
}

.pres-slide-title .pres-title-chap {
  color: var(--text-secondary);
  font-weight: 600;
}

.pres-slide-title .pres-title-verse {
  color: var(--accent-gold-light);
  font-weight: 800;
}

.pres-slide-title .pres-title-sep {
  color: var(--accent-gold);
  opacity: 0.55;
  font-size: 0.85rem;
}

.pres-slide-divider {
  width: 100%;
  max-width: 580px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.65), rgba(249, 115, 22, 0.5), transparent);
  border-radius: 9999px;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.3);
  margin: 0.15rem auto 0 auto;
}

/* Light Theme */
[data-theme="light"] .pres-slide-toggle-btn {
  background: transparent;
  border-color: rgba(217, 119, 6, 0.25);
  color: #b45309;
  opacity: 0.35;
  box-shadow: none;
}

[data-theme="light"] .pres-slide-toggle-btn:hover {
  opacity: 1;
  background: rgba(245, 158, 11, 0.15);
  border-color: #d97706;
  color: #92400e;
  box-shadow: 0 0 8px rgba(217, 119, 6, 0.25);
}

[data-theme="light"] .pres-slide-toggle-btn.details-hidden {
  border-color: rgba(0, 0, 0, 0.12);
  color: #94a3b8;
}

[data-theme="light"] .pres-slide-title .pres-title-book {
  color: #b45309;
}

[data-theme="light"] .pres-slide-title .pres-title-canto,
[data-theme="light"] .pres-slide-title .pres-title-lila {
  color: #0f172a;
}

[data-theme="light"] .pres-slide-title .pres-title-chap {
  color: #334155;
}

[data-theme="light"] .pres-slide-title .pres-title-verse {
  color: #b45309;
}

[data-theme="light"] .pres-slide-title .pres-title-sep {
  color: #d97706;
  opacity: 0.65;
}

[data-theme="light"] .pres-slide-divider {
  background: linear-gradient(90deg, transparent, rgba(217, 119, 6, 0.5), rgba(245, 158, 11, 0.35), transparent);
  box-shadow: 0 0 8px rgba(217, 119, 6, 0.2);
}

/* Sepia Theme */
[data-theme="sepia"] .pres-slide-toggle-btn {
  background: transparent;
  border-color: rgba(180, 83, 9, 0.25);
  color: #92400e;
  opacity: 0.35;
  box-shadow: none;
}

[data-theme="sepia"] .pres-slide-toggle-btn:hover {
  opacity: 1;
  background: rgba(217, 119, 6, 0.12);
  border-color: #d97706;
  color: #78350f;
  box-shadow: 0 0 8px rgba(180, 83, 9, 0.25);
}

[data-theme="sepia"] .pres-slide-toggle-btn.details-hidden {
  border-color: rgba(180, 83, 9, 0.15);
  color: #a16207;
}

[data-theme="sepia"] .pres-slide-title .pres-title-book {
  color: #92400e;
}

[data-theme="sepia"] .pres-slide-title .pres-title-canto,
[data-theme="sepia"] .pres-slide-title .pres-title-lila {
  color: #451a03;
}

[data-theme="sepia"] .pres-slide-title .pres-title-chap {
  color: #78350f;
}

[data-theme="sepia"] .pres-slide-title .pres-title-verse {
  color: #92400e;
}

[data-theme="sepia"] .pres-slide-title .pres-title-sep {
  color: #b45309;
  opacity: 0.65;
}

[data-theme="sepia"] .pres-slide-divider {
  background: linear-gradient(90deg, transparent, rgba(180, 83, 9, 0.5), rgba(217, 119, 6, 0.35), transparent);
  box-shadow: 0 0 8px rgba(180, 83, 9, 0.15);
}

@keyframes presFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .pres-slide-badge {
    font-size: 1.25rem;
    padding: 0.35rem 1.05rem;
  }
  .pres-slide-toggle-btn {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }
  .pres-slide-title {
    font-size: 1.05rem;
  }
}

.pres-sanskrit-box {
  width: 100%;
  max-width: 1150px;
  text-align: center;
  padding: 0.5rem 1rem;
}

.pres-sanskrit-text {
  font-family: var(--font-sanskrit);
  font-size: calc(2.35rem * var(--pres-font-scale, 1));
  line-height: 2.2;
  color: var(--accent-gold-light);
  font-weight: 700;
  white-space: pre-line;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  transition: font-size 0.2s ease;
}

[data-theme="light"] .pres-sanskrit-text {
  color: #b45309;
  text-shadow: none;
}

[data-theme="sepia"] .pres-sanskrit-text {
  color: #92400e;
  text-shadow: none;
}

/* Hide separate outer presentation boxes & header toggle chips for Vaishnava Songs */
.presentation-overlay.is-vs #presWordsBox,
.presentation-overlay.is-vs #presTranslationBox,
.presentation-overlay.is-vs #presPurportBox,
.presentation-overlay.is-vs #togglePresWords,
.presentation-overlay.is-vs #togglePresTranslation,
.presentation-overlay.is-vs #togglePresPurport {
  display: none !important;
}

.pres-vs-slide-container {
  width: 100%;
  max-width: 1050px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.25rem;
  padding: 0.5rem 1rem 3.5rem 1rem;
  margin: 0 auto;
}

.pres-vs-stanza-block {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.85rem;
  padding: 1.5rem 1.75rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 20px;
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}

.pres-vs-stanza-block:hover {
  background: rgba(245, 158, 11, 0.04);
  border-color: rgba(245, 158, 11, 0.25);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .pres-vs-stanza-block {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.07);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .pres-vs-stanza-block:hover {
  border-color: rgba(217, 119, 6, 0.3);
  box-shadow: 0 6px 24px rgba(217, 119, 6, 0.08);
}

[data-theme="sepia"] .pres-vs-stanza-block {
  background: #fdf6e7;
  border-color: rgba(180, 83, 9, 0.15);
}

.pres-vs-stanza-num {
  font-size: calc(1.05rem * var(--pres-font-scale, 1));
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
}

[data-theme="light"] .pres-vs-stanza-num {
  color: #b45309;
}

.pres-vs-stanza-lyrics {
  font-family: var(--font-sanskrit, serif);
  font-size: calc(2.15rem * var(--pres-font-scale, 1));
  line-height: 1.85;
  font-weight: 600;
  color: var(--text-primary);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  letter-spacing: 0.01em;
}

[data-theme="light"] .pres-vs-stanza-lyrics {
  color: #0f172a;
  text-shadow: none;
}

[data-theme="sepia"] .pres-vs-stanza-lyrics {
  color: #451a03;
  text-shadow: none;
}

.pres-vs-stanza-trans {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0.6rem;
  max-width: 900px;
  font-size: calc(1.35rem * var(--pres-font-scale, 1));
  line-height: 1.7;
  color: var(--accent-gold-light);
  font-weight: 500;
  padding: 0.75rem 1.25rem;
  background: rgba(245, 158, 11, 0.06);
  border-left: 3px solid var(--accent-gold);
  border-radius: 8px;
  animation: fadeIn 0.3s ease-out;
}

[data-theme="light"] .pres-vs-stanza-trans {
  color: #78350f;
  background: #fef3c7;
  border-left-color: #d97706;
}

[data-theme="sepia"] .pres-vs-stanza-trans {
  color: #78350f;
  background: #fbf0d9;
  border-left-color: #b45309;
}

/* Word to Word Meanings in Presentation */
.pres-words-box {
  width: 100%;
  max-width: 1150px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem 1.75rem;
}

.pres-words-title {
  font-size: calc(1.05rem * var(--pres-font-scale, 1));
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 0.85rem;
  transition: font-size 0.2s ease;
}

.pres-words-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  text-align: left;
}

.pres-words-grid .word-chip {
  font-size: calc(1rem * var(--pres-font-scale, 1));
  transition: font-size 0.2s ease, padding 0.2s ease;
}

.pres-words-grid .chip-sanskrit {
  font-size: calc(1.15rem * var(--pres-font-scale, 1));
}

.pres-words-grid .chip-hindi {
  font-size: calc(1.05rem * var(--pres-font-scale, 1));
}

.pres-translation-box {
  width: 100%;
  max-width: 1150px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: 16px;
  padding: 1.65rem 2.25rem;
  text-align: justify;
  text-justify: inter-word;
  box-shadow: var(--card-shadow);
}

.pres-translation-label {
  font-size: calc(1.1rem * var(--pres-font-scale, 1));
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 0.65rem;
  text-align: left;
  transition: font-size 0.2s ease;
}

.pres-translation-text {
  font-family: var(--font-devanagari);
  font-size: calc(1.45rem * var(--pres-font-scale, 1));
  line-height: 2.0;
  color: var(--text-primary);
  font-weight: 500;
  transition: font-size 0.2s ease;
}

/* Purport Box in Presentation */
.pres-purport-box {
  width: 100%;
  max-width: 1150px;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: 16px;
  padding: 1.75rem 2.25rem;
  text-align: justify;
  text-justify: inter-word;
}

.pres-purport-label {
  font-size: calc(1.1rem * var(--pres-font-scale, 1));
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 0.65rem;
  text-align: left;
  transition: font-size 0.2s ease;
}

.pres-purport-text {
  font-family: var(--font-devanagari);
  font-size: calc(1.3rem * var(--pres-font-scale, 1));
  line-height: 1.95;
  color: var(--text-primary);
}

/* ==========================================================================
   Search Highlights
   ========================================================================== */

.search-highlight {
  background: rgba(245, 158, 11, 0.4);
  color: inherit;
  border-bottom: 2px solid var(--accent-gold);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-weight: 700;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.45);
  animation: highlightPulse 2.5s ease;
}

[data-theme="light"] .search-highlight {
  background: rgba(251, 191, 36, 0.5);
  border-bottom-color: #d97706;
  color: #78350f;
}

@keyframes highlightPulse {
  0% { background: rgba(249, 115, 22, 0.85); transform: scale(1.05); }
  50% { background: rgba(245, 158, 11, 0.55); }
  100% { background: rgba(245, 158, 11, 0.35); }
}

/* ==========================================================================
   Modals (Search, Backup, Edit)
   ========================================================================== */

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200000;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-container {
  background: var(--bg-card) !important;
  border: 1.5px solid var(--border-color);
  border-radius: 20px;
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.08);
  overflow: hidden;
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  z-index: 160;
}

[data-theme="light"] .modal-container {
  background: #ffffff !important;
  border-color: #cbd5e1;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.25), 0 0 0 1px #e2e8f0;
}

@keyframes modalPop {
  0% { transform: scale(0.95); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.modal-header {
  padding: 1.25rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.modal-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

[data-theme="light"] .modal-header h2 {
  color: #b45309;
}

.btn-close-modal {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-close-modal:hover {
  color: #ffffff;
  background: #e11d48;
  border-color: #e11d48;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
  max-height: calc(90vh - 130px);
}

/* Search Modal Specifics */
.modal-body .search-input-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-tertiary);
  border: 1.5px solid var(--border-color);
  border-radius: 14px;
  padding: 0.65rem 1rem;
  transition: all 0.2s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.modal-body .search-input-group:focus-within {
  border-color: var(--accent-gold);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2), 0 4px 15px rgba(0, 0, 0, 0.12);
}

.modal-body .search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-family: inherit;
}

[data-theme="light"] .modal-body .search-input-group {
  background: #f8fafc;
  border-color: #cbd5e1;
}

[data-theme="light"] .modal-body .search-input-group:focus-within {
  background: #ffffff;
  border-color: #f59e0b;
}

[data-theme="light"] .modal-body .search-input {
  color: #0f172a;
}

.search-results-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.search-result-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.search-result-item:hover {
  border-color: var(--accent-gold);
  background: rgba(245, 158, 11, 0.08);
  transform: translateX(4px);
}

.search-res-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.search-res-key {
  font-weight: 700;
  color: var(--accent-gold);
  font-size: 0.9rem;
}

.search-res-sanskrit {
  font-family: var(--font-devanagari);
  font-size: 0.95rem;
  color: var(--accent-gold-light);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

[data-theme="light"] .search-res-sanskrit {
  color: #9a3412 !important;
  font-weight: 700;
}

[data-theme="sepia"] .search-res-sanskrit {
  color: #7c2d12 !important;
  font-weight: 700;
}

[data-theme="light"] .search-result-item {
  background: #f8fafc;
  border-color: #e2e8f0;
}

[data-theme="light"] .search-result-item:hover {
  background: #fef3c7;
  border-color: #f59e0b;
}

[data-theme="light"] .search-res-translation {
  color: #334155;
}

[data-theme="sepia"] .search-result-item {
  background: #fdfbf7;
  border-color: #e2d2b6;
}

[data-theme="sepia"] .search-result-item:hover {
  background: #faebd7;
  border-color: #d97706;
}

.search-res-translation {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================================
   Edit Sloka Modal Styling
   ========================================================================== */

.edit-meta-chips {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.edit-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.85rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.edit-chip-val {
  color: var(--accent-saffron);
  font-weight: 800;
}

.edit-textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
  resize: vertical;
  transition: all 0.2s ease;
}

.edit-textarea:focus {
  outline: none;
  border-color: var(--accent-saffron);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.15);
  background: var(--bg-card);
}

.edit-textarea.sanskrit-field {
  font-family: var(--font-sanskrit);
  font-size: 1.15rem;
  line-height: 1.9;
  color: var(--accent-gold-light);
}

[data-theme="light"] .edit-textarea.sanskrit-field {
  color: #9a3412;
}

[data-theme="sepia"] .edit-textarea.sanskrit-field {
  color: #7c2d12;
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--accent-gold);
  padding: 0.75rem 1.25rem;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--card-shadow), var(--glow-gold);
  animation: toastSlide 0.3s ease;
}

@keyframes toastSlide {
  0% { transform: translateY(20px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   Vaishnava Songs & Audio Player Styles
   ========================================================================== */

.vs-audio-player-box {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(15, 23, 42, 0.6) 100%);
  border: 1.5px solid rgba(245, 158, 11, 0.28);
  border-radius: 14px;
  padding: 0.85rem 1.15rem;
  margin-bottom: 1.15rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  animation: fadeIn 0.3s ease;
}

[data-theme="light"] .vs-audio-player-box {
  background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
  border-color: rgba(217, 119, 6, 0.35);
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.12);
}

[data-theme="sepia"] .vs-audio-player-box {
  background: linear-gradient(135deg, #fdf6e2 0%, #f4ebd0 100%);
  border-color: rgba(180, 83, 9, 0.3);
  box-shadow: 0 4px 14px rgba(120, 53, 15, 0.08);
}

.vs-audio-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
  flex-wrap: wrap;
}

.vs-audio-info {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.vs-audio-icon {
  font-size: 1.1rem;
}

.vs-audio-track-selector-wrapper {
  flex: 1;
  max-width: 320px;
  min-width: 200px;
}

.vs-audio-select {
  width: 100%;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  outline: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.vs-audio-select:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.25);
}

.vs-audio-controls-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.vs-audio-btn-play {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #0f172a;
  border: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.vs-audio-btn-play:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.6);
}

.vs-audio-btn-play:active {
  transform: scale(0.95);
}

.vs-audio-progress-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
}

.vs-audio-time {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 32px;
}

.vs-audio-seek-slider {
  flex: 1;
  accent-color: var(--accent-gold);
  cursor: pointer;
  height: 5px;
  border-radius: 999px;
}

.vs-audio-volume-group {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.vs-audio-btn-vol {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  padding: 0.2rem;
  color: var(--text-secondary);
}

.vs-audio-vol-slider {
  width: 60px;
  accent-color: var(--accent-gold);
  cursor: pointer;
  height: 4px;
}

/* Vaishnava Songs Sidebar Sub-sections */
.vs-sub-header {
  padding: 0.45rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(245, 158, 11, 0.06);
  border-radius: 6px;
  margin: 0.4rem 0.25rem 0.2rem 0.25rem;
}

[data-theme="light"] .vs-sub-header {
  color: #b45309;
  background: rgba(217, 119, 6, 0.08);
}

.vs-song-item-badge {
  font-size: 0.7rem;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-gold-light);
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  margin-left: auto;
  font-weight: 700;
}

/* ==========================================================================
   Vaishnava Songs Ultra-Compact Layout (Slokas by default, Collapsible Drawers)
   ========================================================================== */

.sanskrit-devanagari-text:has(.vs-song-flow),
.sanskrit-verse-box:has(.vs-song-flow) {
  white-space: normal !important;
  line-height: normal !important;
  text-align: left !important;
  padding: 0.25rem 0 !important;
  background: transparent !important;
  border: none !important;
}

.vs-song-flow {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.1rem;
  white-space: normal !important;
}

/* Master Control Toolbar & Script Switcher */
.vs-global-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  padding: 0.2rem 0.25rem 0.45rem 0.25rem;
  margin-bottom: 0.25rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

[data-theme="light"] .vs-global-bar {
  border-bottom-color: rgba(0, 0, 0, 0.1);
}

.vs-script-toggle-group {
  display: inline-flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 2px;
  gap: 2px;
}

[data-theme="light"] .vs-script-toggle-group {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

.vs-script-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.vs-script-btn:hover {
  color: var(--text-primary);
}

.vs-script-btn.active {
  background: var(--accent-gold);
  color: #0f172a;
  font-weight: 700;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .vs-script-btn.active {
  background: #d97706;
  color: #ffffff;
}

.vs-global-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.vs-master-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
  font-size: 0.775rem;
  font-weight: 600;
  padding: 0.18rem 0.6rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.vs-master-btn .chip-dot {
  font-size: 0.5rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.vs-master-btn:hover {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.35);
  color: var(--text-primary);
}

.vs-master-btn.active {
  background: rgba(245, 158, 11, 0.18);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  font-weight: 700;
}

.vs-master-btn.active .chip-dot {
  color: #22c55e;
}

[data-theme="light"] .vs-master-btn {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #475569;
}

[data-theme="light"] .vs-master-btn:hover {
  background: #f8fafc;
  border-color: #94a3b8;
}

[data-theme="light"] .vs-master-btn.active {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #b45309;
}

[data-theme="light"] .vs-master-btn.active .chip-dot {
  color: #16a34a;
}

/* Ultra-Compact Stanza Unit */
.vs-stanza-unit {
  position: relative;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.75rem;
  margin: 0;
  transition: all 0.2s ease;
  white-space: normal !important;
}

.vs-stanza-unit:hover {
  border-color: rgba(245, 158, 11, 0.3);
  background: rgba(15, 23, 42, 0.55);
}

[data-theme="light"] .vs-stanza-unit {
  background: #ffffff;
  border-color: #e2e8f0;
}

[data-theme="light"] .vs-stanza-unit:hover {
  border-color: #cbd5e1;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="sepia"] .vs-stanza-unit {
  background: #fdf6e7;
  border-color: #e8dcc4;
}

/* Stanza Header Row */
.vs-stanza-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.2rem;
}

.vs-stanza-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-gold);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 0.08rem 0.4rem;
  border-radius: 4px;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

[data-theme="light"] .vs-stanza-badge {
  color: #b45309;
  background: #fef3c7;
  border-color: #fcd34d;
}

/* Stanza Arrow Toggle Buttons */
.vs-stanza-toggles {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.vs-arrow-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.18s ease;
  user-select: none;
  line-height: 1.3;
}

.vs-arrow-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
}

.vs-arrow-btn.btn-trans.active {
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.4);
  background: rgba(56, 189, 248, 0.1);
}

.vs-arrow-btn.btn-words.active {
  color: var(--accent-gold);
  border-color: rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.1);
}

[data-theme="light"] .vs-arrow-btn {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #64748b;
}

[data-theme="light"] .vs-arrow-btn:hover {
  background: #f1f5f9;
  color: #1e293b;
}

[data-theme="light"] .vs-arrow-btn.btn-trans.active {
  color: #0284c7;
  border-color: #7dd3fc;
  background: #e0f2fe;
}

[data-theme="light"] .vs-arrow-btn.btn-words.active {
  color: #b45309;
  border-color: #fcd34d;
  background: #fef3c7;
}

.vs-arrow-icon {
  font-size: 0.68rem;
  display: inline-block;
  transition: transform 0.2s ease;
}

/* Stanza Lyrics */
.vs-stanza-lyrics {
  font-family: var(--font-sanskrit, var(--font-devanagari, 'Noto Sans Devanagari', 'Martel', serif));
  font-size: 1.15rem;
  line-height: 1.62;
  color: var(--text-primary);
  letter-spacing: 0.01em;
  margin: 0.15rem 0;
  text-align: center;
  white-space: normal !important;
}

/* Word-to-word Drawer */
.vs-stanza-words-drawer {
  margin-top: 0.45rem;
  padding: 0.45rem 0.65rem;
  background: rgba(0, 0, 0, 0.22);
  border: 1px dashed rgba(245, 158, 11, 0.25);
  border-radius: var(--radius-sm);
  animation: vsDrawerSlideDown 0.2s ease-out;
}

[data-theme="light"] .vs-stanza-words-drawer {
  background: #fefce8;
  border-color: #fef08a;
}

.vs-words-inline-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

/* Translation Drawer */
.vs-stanza-trans-drawer {
  width: 100%;
  margin-top: 0.5rem;
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  animation: vsDrawerSlideDown 0.2s ease-out;
}

[data-theme="light"] .vs-stanza-trans-drawer,
[data-theme="sepia"] .vs-stanza-trans-drawer {
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
}

/* Purport Collapsible Box */
.vs-purport-unit {
  margin-top: 0.75rem;
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.4);
  overflow: hidden;
}

[data-theme="light"] .vs-purport-unit {
  background: #fefdf9;
  border-color: #fed7aa;
}

.vs-purport-header-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.9rem;
  background: rgba(245, 158, 11, 0.08);
  border: none;
  color: var(--accent-gold);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  text-align: left;
  user-select: none;
}

.vs-purport-content {
  padding: 0.85rem 1rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  border-top: 1px solid rgba(245, 158, 11, 0.15);
  animation: vsDrawerSlideDown 0.2s ease-out;
}

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

/* ==========================================================================
   Vaishnava Songs Reader Mode - Majestic Presentation-Matched Style
   ========================================================================== */

.vs-song-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0.5rem 0 3rem 0;
}

.vs-global-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  width: 100%;
  padding: 0.45rem 0.85rem;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  margin-bottom: 0.5rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .vs-global-bar {
  background: #f8fafc;
  border-color: #e2e8f0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="sepia"] .vs-global-bar {
  background: #fdf6e7;
  border-color: rgba(180, 83, 9, 0.2);
  box-shadow: 0 2px 8px rgba(180, 83, 9, 0.06);
}

.vs-script-toggle-group {
  display: inline-flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 9999px;
  padding: 3px;
  gap: 3px;
}

[data-theme="light"] .vs-script-toggle-group {
  background: #e2e8f0;
  border-color: #cbd5e1;
}

[data-theme="sepia"] .vs-script-toggle-group {
  background: #f4ebd5;
  border-color: rgba(180, 83, 9, 0.2);
}

.vs-script-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.vs-script-btn:hover {
  color: var(--text-primary);
}

.vs-script-btn.active {
  background: var(--accent-gold);
  color: #0f172a;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

[data-theme="light"] .vs-script-btn.active {
  background: #d97706;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(217, 119, 6, 0.25);
}

[data-theme="sepia"] .vs-script-btn.active {
  background: #b45309;
  color: #ffffff;
}

.vs-global-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.vs-master-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.84rem;
  font-weight: 600;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.vs-master-btn:hover {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--accent-gold);
  color: var(--accent-gold-light);
}

.vs-master-btn.active {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.5);
  color: #4ade80;
}

[data-theme="light"] .vs-master-btn {
  background: #ffffff;
  border-color: #cbd5e1;
  color: #334155;
}

[data-theme="light"] .vs-master-btn:hover {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #b45309;
}

[data-theme="light"] .vs-master-btn.active {
  background: #dcfce7;
  border-color: #22c55e;
  color: #15803d;
}

[data-theme="sepia"] .vs-master-btn {
  background: #fdf6e7;
  border-color: rgba(180, 83, 9, 0.25);
  color: #78350f;
}

[data-theme="sepia"] .vs-master-btn:hover {
  background: #fef3c7;
  border-color: #d97706;
}

[data-theme="sepia"] .vs-master-btn.active {
  background: #dcfce7;
  border-color: #15803d;
  color: #15803d;
}

/* Stanza Unit Card (Matching Projection Mode Frosted Aesthetic) */
.vs-stanza-unit {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  padding: 1.6rem 2rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 20px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.vs-stanza-unit:hover {
  background: rgba(245, 158, 11, 0.03);
  border-color: rgba(245, 158, 11, 0.25);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  transform: translateY(-2px);
}

[data-theme="light"] .vs-stanza-unit {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.07);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .vs-stanza-unit:hover {
  border-color: rgba(217, 119, 6, 0.3);
  box-shadow: 0 8px 24px rgba(217, 119, 6, 0.08);
  transform: translateY(-2px);
}

[data-theme="sepia"] .vs-stanza-unit {
  background: #fdf6e7;
  border-color: rgba(180, 83, 9, 0.15);
  box-shadow: 0 4px 20px rgba(180, 83, 9, 0.04);
}

[data-theme="sepia"] .vs-stanza-unit:hover {
  border-color: rgba(180, 83, 9, 0.35);
  box-shadow: 0 8px 24px rgba(180, 83, 9, 0.08);
  transform: translateY(-2px);
}

.vs-stanza-header-row {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.vs-stanza-badge {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  padding: 0;
  border: none;
  opacity: 0.9;
}

[data-theme="light"] .vs-stanza-badge {
  color: #b45309;
}

[data-theme="sepia"] .vs-stanza-badge {
  color: #92400e;
}

.vs-stanza-lyrics {
  width: 100%;
  font-family: var(--font-sanskrit, serif);
  font-size: 1.45rem;
  line-height: 1.85;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  letter-spacing: 0.01em;
}

[data-theme="light"] .vs-stanza-lyrics {
  color: #0f172a;
}

[data-theme="sepia"] .vs-stanza-lyrics {
  color: #451a03;
}

/* Stanza Translation Box (Matching Projection Mode Amber Card) */
.vs-stanza-trans-drawer {
  width: 100%;
  animation: fadeIn 0.3s ease-out;
}

.vs-stanza-trans-box {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1.25rem;
  background: rgba(245, 158, 11, 0.06);
  border-left: 3px solid var(--accent-gold);
  border-radius: 12px;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--accent-gold-light);
  font-weight: 500;
  text-align: left;
}

[data-theme="light"] .vs-stanza-trans-box {
  background: #fef3c7;
  border-left-color: #d97706;
  color: #78350f;
}

[data-theme="sepia"] .vs-stanza-trans-box {
  background: #fbf0d9;
  border-left-color: #b45309;
  color: #78350f;
}

.vs-trans-book-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.vs-trans-text-wrap {
  flex: 1;
}

.vs-stanza-words-drawer {
  width: 100%;
  animation: fadeIn 0.3s ease-out;
}

.vs-words-inline-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: 12px;
}

[data-theme="light"] .vs-words-inline-list {
  background: #f8fafc;
  border-color: #e2e8f0;
}

[data-theme="sepia"] .vs-words-inline-list {
  background: #fbf0d9;
  border-color: rgba(180, 83, 9, 0.2);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
  .app-main {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none;
  }
}

@media (max-width: 640px) {
  .app-header {
    padding: 0.6rem 1rem;
  }
  .app-main {
    padding: 1rem;
  }
  .sloka-card {
    padding: 1.25rem;
  }
  .sanskrit-devanagari-text {
    font-size: 1.25rem;
  }
  .hindi-translation-text {
    font-size: 1rem;
  }
  .vs-audio-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .vs-audio-track-selector-wrapper {
    max-width: 100%;
    width: 100%;
  }
  .vs-audio-vol-slider {
    display: none;
  }
}