/* YouTube-style Professional Layout for Waeyuk Content Player */

:root {
  --yt-bg: var(--bg);
  --yt-panel: var(--glass-bg);
  --yt-text: var(--tx-primary);
  --yt-muted: var(--tx-secondary);
  --yt-accent: var(--accent);
  --yt-glow: var(--accent-glow);
  --yt-white: #ffffff;
  --yt-surface: #0f0f0f;
  --bg-hover: var(--glass-hover);
  --accent: var(--yt-accent);
  --yt-red: #ff3b3b;
  --yt-hover: var(--glass-hover);
  --yt-border: var(--border);
  --card-shadow: var(--shadow-lg);
  --corner-radius: 20px;
}

html, body {
  min-height: 100%;
  height: 100%;
  background: #000;
}

body {
  background-color: #000;
  color: var(--tx-primary);
  font-family: 'Outfit', 'Tajawal', sans-serif;
  margin: 0;
  padding: 0;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: #000;
  z-index: -1;
}

#top-bar-container,
#navbar-container,
.main,
.player-and-suggestions,
.player-column,
.suggestions-column,
.player-video-frame {
  background: transparent !important;
}

.main {
  background: transparent;
}

/* Global Transitions */
*, *::before, *::after {
  transition: background-color 0.3s ease, opacity 0.3s ease, transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main Container */
.main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 24px 140px;
  box-sizing: border-box;
}

@media (max-width: 1000px) {
  .main {
    padding: 12px 12px 100px;
  }
}

@media (max-width: 768px) {
  .main {
    padding: 0 0 100px;
  }

  .player-column {
    width: 100%;
    padding: 0;
  }

  .player-video-frame {
    width: 100vw !important;
    max-width: 100vw !important;
    margin-inline: calc(50% - 50vw);
    aspect-ratio: auto !important;
    height: calc(100dvh - 120px) !important;
    min-height: calc(100dvh - 120px) !important;
    max-height: calc(100dvh - 120px) !important;
    border-radius: 0;
    box-shadow: none;
    border-color: rgba(255,255,255,0.06);
  }

  #videoWrap {
    width: 100%;
    height: 100%;
    display: block;
  }

  video#videoEl {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    min-height: unset;
    object-fit: cover;
    background: #000;
  }

  .book-toolbar {
    left: 8px;
    right: 8px;
    bottom: 12px;
    transform: none;
    width: auto;
    justify-content: center;
  }
}

/* 2-Column Layout */
.player-and-suggestions {
  display: flex;
  gap: 32px;
  flex-direction: row;
  align-items: flex-start;
}

@media (max-width: 1100px) {
  .player-and-suggestions {
    flex-direction: column;
    gap: 24px;
  }
}

/* Player Column */
.player-column {
  flex: 1;
  min-width: 0;
}

/* Sidebar Column */
.suggestions-column {
  width: 400px;
  flex: 0 0 400px;
}

@media (max-width: 1100px) {
  .suggestions-column {
    width: 100%;
    flex: none;
  }
}

/* Player Frame */
.player-video-frame {
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border);
}

/* Central Play Button */
#videoPlayBtn {
  font-size: 32px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 30px var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#videoPlayBtn:hover {
  transform: scale(1.15);
}

/* Book Content Area */
#book-wrap {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

#book-content-area {
  padding: 60px 40px;
  font-size: 1.25rem;
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
  color: var(--tx-primary);
  height: 100%;
  overflow-y: auto !important;
}

/* Modern Toolbar */
.book-toolbar {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 6px 16px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 20px;
  z-index: 1000;
  box-shadow: 0 10px 40px rgba(0,0,0,0.8);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
}

.book-toolbar button {
  background: transparent;
  border: none;
  color: #fff;
  cursor: pointer;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  border-radius: 50%;
  transition: all 0.2s ease;
}

.book-toolbar button:hover {
  background: var(--glass-hover);
  color: var(--accent);
}

/* Search Overlay Refined */
.search-input-group {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.05);
  border-radius: 100px;
  padding: 8px 16px;
  border: 1px solid rgba(255,255,255,0.1);
  gap: 12px;
}
#bookSearchInput {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 16px;
  width: 100%;
  outline: none;
}
.search-results-dropdown {
  margin-top: 15px;
  max-height: 400px;
  overflow-y: auto;
}
.search-result-item {
  padding: 12px;
  border-radius: 12px;
  cursor: pointer;
  transition: 0.2s;
  font-size: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.search-result-item:hover { background: rgba(255,255,255,0.05); color: var(--accent); }

/* ToC Drawer Refined */
.toc-header {
  padding: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.toc-list {
  padding: 10px;
  overflow-y: auto;
  height: calc(100% - 70px);
}
.toc-item {
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 14px;
  transition: 0.2s;
  display: flex;
  align-items: center;
  gap: 12px;
}
.toc-item:hover { background: rgba(255,255,255,0.05); color: var(--accent); }

/* Global Overlays (Desktop Default) */
.settings-panel, .toc-drawer, .book-search-overlay {
  position: absolute;
  background: rgba(15, 15, 15, 0.95);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 24px;
  z-index: 2000;
  box-shadow: 0 30px 60px rgba(0,0,0,0.8);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.settings-panel {
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  padding: 24px;
}

.settings-panel.hidden, .toc-drawer.hidden, .book-search-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(20px);
}

.toc-drawer {
  top: 20px;
  right: 20px;
  width: 350px;
  height: calc(100% - 120px);
  transform: none;
}
.toc-drawer.hidden { transform: translateX(30px); }

.book-search-overlay {
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  padding: 24px;
}
.book-search-overlay.hidden { transform: translateX(-50%) translateY(-20px); }

/* Common Grid & Buttons for Book Reader Settings */
.settings-section { margin-bottom: 24px; }
.settings-section label {
  display: block;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--yt-muted);
  margin-bottom: 12px;
}
.theme-grid, .font-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.theme-btn, .font-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: #fff;
  padding: 12px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.theme-btn.active, .font-btn.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
#contentHeader {
  margin-top: 24px;
  padding: 0 4px;
}

#contentTitleLarge {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--tx-primary);
  margin-bottom: 16px;
}

.metadata-actions-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.publisher-info-group {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.03);
  padding: 12px 20px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.publisher-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#publisherName {
  font-weight: 800;
  font-size: 16px;
  color: #fff;
}

#publisherFollowers {
  font-size: 12px;
  color: var(--yt-muted);
  font-weight: 600;
}

#publisherAvatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
  object-fit: cover;
}

#subscribeBtn {
  background: #fff;
  color: #000;
  border: none;
  padding: 10px 24px;
  border-radius: 100px;
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin-right: 12px;
}

#subscribeBtn:hover {
  background: var(--waeyuk-neon);
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(19, 236, 226, 0.3);
}

#subscribeBtn.subscribed {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.1);
}

/* Action Strip */
.action-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  white-space: nowrap;
  scrollbar-width: none; /* Hide scrollbar for cleaner look */
}
.action-strip::-webkit-scrollbar {
  display: none;
}

.action-btn {
  background: var(--glass-bg);
  border: 1px solid var(--border);
  color: var(--tx-primary);
  padding: 10px 18px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.action-btn:hover {
  background: var(--glass-hover);
  border-color: var(--accent);
}

/* Description Box */
.description-container {
  background: var(--glass-bg);
  padding: 20px;
  border-radius: 20px;
  margin-top: 20px;
  border: 1px solid var(--border);
}

#contentStats {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--tx-primary);
  margin-bottom: 12px;
  display: flex;
  gap: 16px;
}

#contentDescription {
  line-height: 1.6;
  color: var(--tx-secondary);
  font-size: 0.95rem;
  white-space: pre-wrap;
}

#audio-toolbar.toolbar-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(20px);
  pointer-events: none;
}

.action-btn i {
  font-size: 1.1rem;
}

.action-label {
  display: inline-block;
}

@media (max-width: 600px) {
  .action-label {
    display: none;
  }
  .action-btn {
    padding: 10px;
    width: 44px;
    height: 44px;
    justify-content: center;
  }
}

/* Description Box Modernized */
.description-container {
  background: var(--glass-bg);
  border-radius: 20px;
  padding: 20px;
  margin-top: 24px;
  border: 1px solid var(--border);
  transition: background 0.3s ease;
}

.description-container:hover {
  background: var(--glass-hover);
}

#contentStats {
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 4px;
  display: flex;
  gap: 8px;
}

#contentDescription {
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
}

#moreToggle {
  color: var(--yt-text);
  font-weight: 800;
  text-decoration: none;
  font-size: 14px;
}

/* Comment Preview Strip */
#commentPreview {
  margin-top: 24px;
  background: var(--glass-bg);
  border-radius: 20px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  border: 1px solid var(--border);
}

#commentPreview:hover {
  background: var(--glass-hover);
  border-color: var(--accent);
}

#commentPreview img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
}

/* Sidebar Cards */
#recommendedCards .card {
  display: flex !important;
  gap: 12px !important;
  margin-bottom: 20px !important;
  cursor: pointer;
  background: var(--glass-bg) !important;
  border: 1px solid var(--border) !important;
  padding: 12px !important;
  border-radius: 16px !important;
  transition: all 0.3s ease !important;
}

#recommendedCards .card:hover {
  transform: translateY(-3px) !important;
  border-color: var(--accent) !important;
  background: var(--glass-hover) !important;
}

#recommendedCards .card .thumb-wrap {
  width: 120px !important;
  flex: 0 0 120px !important;
  aspect-ratio: 4/3; /* More balanced ratio to avoid excessive zooming */
  border-radius: 10px;
  overflow: hidden;
  background: rgba(255,255,255,0.05);
}

#recommendedCards .card .thumb-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

#recommendedCards .card .meta .card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--tx-primary);
  margin-bottom: 4px;
}

#recommendedCards .card .meta .card-author {
  font-size: 0.8rem;
  color: var(--tx-secondary);
}

@media (max-width: 1000px) {
    #suggestionsList .card .thumb-wrap {
        width: 120px;
        flex: 0 0 120px;
    }
}

/* Waveform (Audio Mode) - Consolidated above */

/* Book Mode Overrides */
.player-video-frame.mode-book {
  aspect-ratio: 16 / 9;
  height: auto !important;
  max-height: none;
  border: 1px solid rgba(19, 236, 226, 0.1);
  overflow: hidden;
}

@media (max-width: 768px) {
  .player-video-frame.mode-book {
    aspect-ratio: 3 / 4 !important; /* Taller for mobile reading */
    height: 70vh !important;
  }
}

/* --- Controls Overlays --- */
.video-overlay-play-btn {
    background: rgba(0,0,0,0.6);
    border: 0;
    color: #fff;
    font-size: 40px;
    width: 68px;
    height: 48px;
    border-radius: 12px;
    cursor: pointer;
}

/* Navbar compatibility */
.navbar {
    z-index: 1000;
}

/* Emoji Bar */
#emojiBar {
  position: absolute;
  bottom: calc(100% + 12px);
  right: 0;
  background: var(--yt-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding: 6px 12px;
  display: none; /* toggled by JS */
  gap: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  z-index: 1000;
  animation: popIn 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
  from { opacity: 0; transform: translateY(10px) scale(0.9); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

#emojiBar::after {
  content: "";
  position: absolute;
  top: 100%;
  right: 20px;
  border-width: 6px;
  border-style: solid;
  border-color: var(--yt-surface) transparent transparent transparent;
}

.emojiQuick, #emojiMore {
  background: transparent;
  border: 0;
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
  transition: transform 0.2s ease;
  color: var(--yt-white);
}

.emojiQuick:hover, #emojiMore:hover {
  transform: scale(1.3);
}

/* Mobile Responsiveness & Layout Optimization (Phones/Tablets) */
@media (max-width: 768px) {
  #book-wrap {
    height: 100%;
    margin-top: 0;
    border-radius: 0; /* Full bleed on phones */
  }

  .player-video-frame {
    width: 100% !important;
    max-width: 100% !important;
    aspect-ratio: 16 / 9 !important;
    min-height: 240px;
    height: auto;
    border-radius: 0;
    box-shadow: none;
    border-color: rgba(255,255,255,0.06);
  }

  #videoWrap {
    width: 100%;
    height: 100%;
    display: block;
  }

  video#videoEl {
    min-height: 240px;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
  }

  .player-column,
  .suggestions-column,
  .player-and-suggestions {
    width: 100% !important;
    max-width: 100% !important;
    background: transparent !important;
  }

  #top-bar-container,
  #navbar-container,
  html,
  body,
  .main {
    background: #000 !important;
  }

  .description-container {
    border-radius: 12px;
    background: rgba(0,0,0,0.7) !important;
  }

  /* Padding & Font */
  /* Toolbar layout on mobile: strictly one row, tiny gaps */
  #book-toolbar, .book-toolbar {
    min-width: 95% !important;
    gap: 4px !important;
    padding: 6px 4px !important;
    grid-template-columns: auto auto auto !important; /* Switch to auto-compact on mobile */
  }
  #book-pagination {
    position: static !important;
    font-size: 10px;
    min-width: 60px;
    padding: 0 4px;
  }
  .toolbar-side-right, .toolbar-side-left {
    gap: 2px !important;
  }
  .book-toolbar button {
    width: 32px !important;
    height: 32px !important;
  }

  .progress-detail {
    bottom: unset !important;
    top: 60px !important;
    left: 10px !important;
    font-size: 10px;
  }

  /* Toolbar: More compact and high z-index to clear main site nav */
  #book-toolbar, .book-toolbar {
    position: absolute !important;
    bottom: 12px !important; /* Close to the bottom of the frame */
    width: 95% !important;
    padding: 6px 12px !important;
    gap: 4px !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.8), 0 0 10px var(--yt-glow);
    justify-content: space-between !important; /* Distribute items evenly */
  }

  .toolbar-group {
    padding: 0 2px !important;
    gap: 2px !important;
    border-right-color: rgba(255, 255, 255, 0.05) !important;
  }

  .toolbar-group button {
    width: 32px !important;
    height: 32px !important;
    font-size: 13px !important;
  }

  .toolbar-group button i {
    font-size: 13px !important;
  }

  /* Overlays: Full-screen or Bottom-sheet (Mobile Specific) */
  .toc-drawer {
    width: 100% !important;
    max-width: 100vw !important;
    right: 0 !important;
    left: 0 !important;
    height: 100% !important;
    z-index: 10001; /* Above toolbar */
    border-left: none !important;
  }

  .settings-panel {
    position: fixed !important; 
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    top: auto !important;
    transform: none !important;
    width: 100% !important;
    max-width: 100vw !important;
    border-radius: 24px 24px 0 0 !important;
  }
  .settings-panel.hidden {
    transform: translateY(100%) !important;
  }

  .theme-grid, .font-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .book-search-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    transform: none !important;
    width: 100% !important;
    max-width: 100vw !important;
    border-radius: 0 0 24px 24px !important;
    z-index: 10003;
    padding: 16px !important;
  }

  .book-search-overlay.hidden {
    transform: translateY(-100%) !important;
    opacity: 0 !important;
    visibility: hidden !important;
  }
}

/* Extreme Micro-scaling (Dedicated Block) */
@media (max-width: 400px) {
  #book-toolbar, .book-toolbar {
    padding: 4px 8px !important;
    gap: 2px !important;
    justify-content: space-between !important;
  }
  .toolbar-group {
    padding: 0 1px !important;
    gap: 1px !important;
  }
  .toolbar-group button {
    width: 28px !important;
    height: 28px !important;
  }
  .toolbar-group button i {
    font-size: 11px !important;
  }
}

#emojiMore {
  font-weight: 900;
  color: var(--accent);
}

/* Quality Picker */
#qualityBtn {
    background: var(--yt-panel);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 12px;
}

/* Hidden elements */
.hide { display: none !important; }
/* --- Recommendation Tabs --- */
.recommendation-tabs {
  display: flex;
  gap: 10px;
  padding: 5px 12px;
  margin-bottom: 20px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.recommendation-tabs::-webkit-scrollbar { display: none; }

.rec-tab {
  white-space: nowrap;
  background: var(--glass-bright);
  border: 1px solid var(--border);
  color: var(--tx-secondary);
  padding: 8px 18px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.rec-tab:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: var(--accent);
}

.rec-tab.active {
  background: var(--gradient-primary) !important;
  border-color: transparent !important;
  color: #fff !important;
  box-shadow: 0 8px 20px rgba(0, 210, 255, 0.3);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}