/* =========================================================
   సన్నివేశం గ్రంథాలయం & దివ్య పఠనానుభవం (Sacred Reader) Stylesheet
   ========================================================= */

:root {
  --reader-font-size: 21px;
  --reader-line-height: 2.1;
  --reader-bg: #0d0603;
  --reader-surface: rgba(26, 13, 6, 0.85);
  --reader-border: rgba(255, 209, 102, 0.25);
  --reader-text: #fbeed9;
  --reader-text-muted: #d9be9b;
  --reader-gold: #ffd166;
  --reader-gold-glow: rgba(255, 209, 102, 0.4);
  --reader-accent: #e59819;
}

/* Base Body */
body.library-body {
  font-family: 'Noto Serif Telugu', serif;
  background: #0d0603;
  color: var(--reader-text);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  transition: background 0.3s ease, color 0.3s ease;
}

/* Background Layer */
.library-bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 50% 10%, #291206 0%, #120703 60%, #080301 100%);
  z-index: -2;
  transition: opacity 0.4s ease;
}

/* Reading Progress Bar (Top Sticky) */
#readingProgressBar {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0%;
  background: linear-gradient(90deg, #d4af37, #ffd166, #ff7b00);
  box-shadow: 0 0 10px rgba(255, 209, 102, 0.8);
  z-index: 10000;
  transition: width 0.1s linear;
}

/* Reader Navigation & Controls Bar */
.reader-toolbar {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(18, 9, 4, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--reader-border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  transition: all 0.3s ease;
}

.reader-toolbar.reader-hidden {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

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

.reader-back-btn {
  color: var(--reader-gold);
  text-decoration: none;
  font-weight: bold;
  font-size: 0.95rem;
  padding: 6px 14px;
  background: rgba(255, 209, 102, 0.1);
  border: 1px solid rgba(255, 209, 102, 0.3);
  border-radius: 20px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.reader-back-btn:hover {
  background: rgba(255, 209, 102, 0.25);
  transform: translateX(-2px);
}

.reader-breadcrumb {
  font-size: 0.9rem;
  color: var(--reader-text-muted);
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.reader-btn {
  background: rgba(255, 255, 255, 0.08);
  color: var(--reader-gold);
  border: 1px solid rgba(255, 209, 102, 0.28);
  padding: 6px 11px;
  border-radius: 8px;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: inherit;
  transition: all 0.2s ease;
}

.reader-btn:hover {
  background: rgba(255, 209, 102, 0.2);
  border-color: var(--reader-gold);
}

.reader-btn-active {
  background: var(--reader-gold) !important;
  color: #120703 !important;
  font-weight: bold;
}

/* =========================================================
   THEMES
   ========================================================= */

/* 1. Temple Night (Default) */
body.theme-night {
  --reader-bg: #0d0603;
  --reader-surface: rgba(28, 14, 6, 0.92);
  --reader-border: rgba(255, 209, 102, 0.28);
  --reader-text: #fcf1e0;
  --reader-text-muted: #d9be9b;
  --reader-gold: #ffd166;
  --reader-gold-glow: rgba(255, 209, 102, 0.45);
}

/* 2. Sacred Parchment (తాళపత్ర గ్రంథం / Antique Sepia) */
body.theme-parchment {
  --reader-bg: #f9f3e5;
  --reader-surface: #f3e8d2;
  --reader-border: rgba(140, 68, 12, 0.35);
  --reader-text: #2a1506;
  --reader-text-muted: #613b1d;
  --reader-gold: #8c4302;
  --reader-gold-glow: rgba(140, 67, 2, 0.25);
  background: #f9f3e5 !important;
}

body.theme-parchment .library-bg {
  background: radial-gradient(circle at 50% 10%, #fff7eb 0%, #f6ecdc 70%, #ebdcc7 100%) !important;
}

body.theme-parchment .reader-toolbar {
  background: rgba(245, 233, 212, 0.95);
  border-color: rgba(140, 68, 12, 0.3);
}

body.theme-parchment .reader-back-btn,
body.theme-parchment .reader-btn {
  background: rgba(140, 67, 2, 0.08);
  color: #5c2d03;
  border-color: rgba(140, 67, 2, 0.3);
}

body.theme-parchment .reader-back-btn:hover,
body.theme-parchment .reader-btn:hover {
  background: rgba(140, 67, 2, 0.18);
}

/* 3. OLED Midnight */
body.theme-oled {
  --reader-bg: #000000;
  --reader-surface: #0a0a0a;
  --reader-border: rgba(255, 255, 255, 0.15);
  --reader-text: #f0f0f0;
  --reader-text-muted: #a0a0a0;
  --reader-gold: #ffcc00;
  --reader-gold-glow: rgba(255, 204, 0, 0.35);
  background: #000000 !important;
}

body.theme-oled .library-bg {
  background: #000000 !important;
}

body.theme-oled .reader-toolbar {
  background: rgba(10, 10, 10, 0.95);
}

/* =========================================================
   READER MAIN ARTICLE CONTAINER
   ========================================================= */

.reader-container {
  max-width: 860px;
  margin: 24px auto 80px;
  padding: 0 16px;
  box-sizing: border-box;
}

.reader-card {
  background: var(--reader-surface);
  border: 1px solid var(--reader-border);
  border-radius: 20px;
  padding: 36px 32px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

/* Sacred Temple Arch Border Accent */
.reader-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--reader-gold), transparent);
}

.reader-header {
  text-align: center;
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px dashed var(--reader-border);
}

.reader-om {
  font-size: 2.2rem;
  color: var(--reader-gold);
  display: block;
  margin-bottom: 8px;
  text-shadow: 0 0 16px var(--reader-gold-glow);
  animation: subtleGlow 3s ease-in-out infinite alternate;
}

@keyframes subtleGlow {
  from { opacity: 0.85; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1.02); }
}

.reader-title {
  font-size: 2.1rem;
  color: var(--reader-gold);
  margin: 6px 0 12px;
  line-height: 1.35;
  font-weight: 700;
}

.reader-subtitle {
  font-size: 1.05rem;
  color: var(--reader-text-muted);
  line-height: 1.6;
}

/* Stanza / Verses Container */
.reader-verses {
  font-size: var(--reader-font-size);
  line-height: var(--reader-line-height);
  color: var(--reader-text);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.reader-section {
  margin-bottom: 38px;
  padding-bottom: 28px;
  border-bottom: 1px dotted var(--reader-border);
}

.reader-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.reader-section-title {
  font-size: calc(var(--reader-font-size) * 1.15);
  color: var(--reader-gold);
  margin-bottom: 18px;
  font-weight: 700;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.reader-section-title::before,
.reader-section-title::after {
  content: '✦';
  font-size: 0.85em;
  opacity: 0.6;
  color: var(--reader-gold);
}

.reader-section-image {
  max-width: 100%;
  border-radius: 14px;
  margin: 20px auto;
  display: block;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
}

.reader-text-content {
  text-align: center;
  letter-spacing: 0.3px;
  white-space: pre-line;
}

.reader-ornament {
  text-align: center;
  color: var(--reader-gold);
  font-size: 1.2rem;
  margin: 24px 0 10px;
  opacity: 0.75;
}

/* =========================================================
   DEVOTIONAL AUDIO BAR
   ========================================================= */

.reader-audio-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(18, 9, 4, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--reader-border);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 1000;
  box-shadow: 0 -8px 25px rgba(0, 0, 0, 0.6);
  transition: transform 0.3s ease;
}

.audio-track-info {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--reader-gold);
  font-size: 0.95rem;
  font-weight: 600;
}

.audio-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  max-width: 600px;
}

.audio-play-btn {
  background: linear-gradient(135deg, #ffd166, #e59819);
  color: #120703;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(255, 209, 102, 0.5);
  transition: transform 0.2s ease;
}

.audio-play-btn:hover {
  transform: scale(1.08);
}

.audio-slider-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
}

.audio-slider {
  flex: 1;
  accent-color: var(--reader-gold);
  cursor: pointer;
}

.audio-time {
  font-size: 0.82rem;
  color: var(--reader-text-muted);
  font-family: monospace;
}

.audio-speed-btn {
  background: rgba(255, 255, 255, 0.1);
  color: var(--reader-gold);
  border: 1px solid rgba(255, 209, 102, 0.3);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

/* =========================================================
   TOAST NOTIFICATION
   ========================================================= */

.reader-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: rgba(20, 10, 4, 0.95);
  color: var(--reader-gold);
  border: 1px solid var(--reader-gold);
  padding: 10px 22px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7);
  z-index: 10001;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

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

/* =========================================================
   LIBRARY CATEGORIES & SUBCATEGORIES GRID
   ========================================================= */

.library-hero {
  text-align: center;
  padding: 30px 16px 20px;
}

.library-hero h1 {
  font-size: 2.6rem;
  color: #ffd166;
  margin-bottom: 8px;
  font-weight: 700;
  text-shadow: 0 0 18px rgba(255, 209, 102, 0.4);
}

.library-hero p {
  color: #d9be9b;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 20px;
}

/* Instant Search Bar */
.library-search-wrap {
  max-width: 540px;
  margin: 0 auto 30px;
  position: relative;
  padding: 0 16px;
}

.library-search-input {
  width: 100%;
  padding: 14px 20px 14px 44px;
  border-radius: 30px;
  border: 1px solid rgba(255, 209, 102, 0.35);
  background: rgba(25, 12, 5, 0.8);
  backdrop-filter: blur(10px);
  color: #fff;
  font-size: 1.05rem;
  font-family: inherit;
  outline: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  box-sizing: border-box;
  transition: all 0.25s ease;
}

.library-search-input:focus {
  border-color: #ffd166;
  box-shadow: 0 0 20px rgba(255, 209, 102, 0.35);
}

.library-search-icon {
  position: absolute;
  left: 32px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: #ffd166;
  pointer-events: none;
}

/* Category Grid */
.library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 22px;
  max-width: 1120px;
  margin: 0 auto 60px;
  padding: 0 18px;
}

.library-cat-card {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(35, 17, 7, 0.85), rgba(18, 9, 3, 0.9));
  border: 1px solid rgba(255, 209, 102, 0.25);
  text-decoration: none;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.library-cat-card:hover {
  transform: translateY(-6px);
  border-color: #ffd166;
  box-shadow: 0 14px 32px rgba(255, 209, 102, 0.25);
}

.library-cat-thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.library-cat-body {
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.library-cat-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffd166;
  display: flex;
  align-items: center;
  gap: 8px;
}

.library-cat-arrow {
  color: #ffd166;
  font-size: 1.2rem;
  transition: transform 0.2s ease;
}

.library-cat-card:hover .library-cat-arrow {
  transform: translateX(4px);
}

/* Subcategory Badges / Grid */
.subcategory-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  max-width: 980px;
  margin: 0 auto 50px;
  padding: 0 16px;
}

.subcategory-card {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  background: linear-gradient(145deg, rgba(32, 16, 6, 0.85), rgba(16, 8, 3, 0.9));
  border: 1px solid rgba(255, 209, 102, 0.3);
  border-radius: 14px;
  color: #ffd27a;
  font-size: 1.15rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  transition: all 0.25s ease;
}

.subcategory-card:hover {
  transform: translateY(-4px);
  border-color: #ffd166;
  background: linear-gradient(145deg, rgba(48, 24, 9, 0.9), rgba(24, 12, 4, 0.95));
  box-shadow: 0 8px 24px rgba(255, 209, 102, 0.25);
  color: #fff;
}

/* Content List (Items inside subcategory) */
.content-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 760px;
  margin: 0 auto 60px;
  padding: 0 16px;
}

.content-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: rgba(30, 15, 6, 0.75);
  border: 1px solid rgba(255, 209, 102, 0.22);
  border-radius: 14px;
  text-decoration: none;
  color: #f7e7ce;
  font-size: 1.15rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.content-item-card:hover {
  border-color: #ffd166;
  background: rgba(45, 22, 9, 0.9);
  transform: translateX(4px);
  color: #ffd166;
}

/* Mobile Responsiveness */
@media (max-width: 700px) {
  .reader-card {
    padding: 24px 18px;
    border-radius: 14px;
  }
  .reader-title {
    font-size: 1.65rem;
  }
  .reader-toolbar {
    padding: 8px 10px;
  }
  .reader-breadcrumb {
    display: none;
  }
  .reader-btn {
    padding: 5px 8px;
    font-size: 0.82rem;
  }
  .library-hero h1 {
    font-size: 2.1rem;
  }
  .library-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 10px;
  }
  .library-cat-card .library-cat-title {
    font-size: 1rem;
  }
}