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

:root {
  --peach: #F4A683;
  --peach-light: #FDF0EB;
  --peach-soft: #F9D5C5;
  --lavender: #C4B1D4;
  --lavender-light: #EDE6F3;
  --sage: #B5C9B3;
  --sage-light: #E4EDE3;
  --sky: #A8C8E8;
  --sky-light: #E0EDF8;
  --blush: #E8B4B8;
  --blush-light: #F8E4E6;
  --cream: #FBF8F4;
  --warm-white: #FEFCF9;
  --gold-soft: #D4A96A;
  --text-dark: #3D2E2E;
  --text-medium: #6B5555;
  --text-light: #A89393;
  --border: #EDE4DC;
  --sidebar-bg: #2E2433;
  --sidebar-text: #E8DDF0;
  --sidebar-hover: rgba(196, 177, 212, 0.1);
  --sidebar-active: rgba(196, 177, 212, 0.18);
  --card-bg: rgba(255, 255, 255, 0.75);
  --card-border: rgba(244, 166, 131, 0.18);
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

html, body {
  height: 100%;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--cream);
  color: var(--text-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ============ SIDEBAR ============ */
.sidebar {
  width: 300px;
  min-width: 300px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid rgba(196, 177, 212, 0.08);
  will-change: transform;
}

.sidebar-header {
  padding: 28px 24px 24px;
  border-bottom: 1px solid rgba(196, 177, 212, 0.1);
  text-align: center;
  background: linear-gradient(180deg, rgba(196,177,212,0.06) 0%, transparent 100%);
}

.sidebar-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  margin: 0 auto 14px;
  overflow: hidden;
  border: 2.5px solid rgba(244, 166, 131, 0.4);
  box-shadow:
    0 0 20px rgba(244, 166, 131, 0.12),
    0 0 40px rgba(196, 177, 212, 0.08);
  transition: var(--transition-smooth);
}

.sidebar-avatar:hover {
  box-shadow:
    0 0 28px rgba(244, 166, 131, 0.25),
    0 0 50px rgba(196, 177, 212, 0.15);
  transform: scale(1.05);
}

.sidebar-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.sidebar-header h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--peach-soft);
  margin-bottom: 2px;
  letter-spacing: 0.3px;
}

.sidebar-header .subtitle {
  font-size: 0.65rem;
  color: var(--lavender);
  letter-spacing: 1.8px;
  text-transform: uppercase;
  opacity: 0.7;
}

.chapter-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
  overscroll-behavior: contain;
}

.chapter-list::-webkit-scrollbar {
  width: 3px;
}

.chapter-list::-webkit-scrollbar-track {
  background: transparent;
}

.chapter-list::-webkit-scrollbar-thumb {
  background: rgba(196, 177, 212, 0.2);
  border-radius: 2px;
}

.chapter-item {
  padding: 12px 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-left: 2px solid transparent;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.chapter-item:hover {
  background: var(--sidebar-hover);
  border-left-color: var(--peach);
}

.chapter-item:active {
  transform: scale(0.995);
}

.chapter-item.active {
  background: var(--sidebar-active);
  border-left-color: var(--peach);
}

.chapter-item .chapter-number {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--peach);
  margin-bottom: 3px;
  font-weight: 600;
}

.chapter-item .chapter-title {
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--sidebar-text);
  opacity: 0.65;
  transition: opacity var(--transition-fast);
}

.chapter-item:hover .chapter-title,
.chapter-item.active .chapter-title {
  opacity: 1;
}

/* ============ MAIN CONTENT ============ */
.content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
  background: linear-gradient(160deg, var(--cream) 0%, var(--peach-light) 30%, var(--lavender-light) 60%, var(--sky-light) 100%);
}

.content::-webkit-scrollbar {
  width: 5px;
}

.content::-webkit-scrollbar-track {
  background: transparent;
}

.content::-webkit-scrollbar-thumb {
  background: rgba(196, 177, 212, 0.25);
  border-radius: 3px;
}

/* ============ BABA BACKGROUND ============ */
.baba-bg-image {
  position: fixed;
  top: 0;
  right: 0;
  width: calc(100% - 280px);
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.baba-bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.045;
  filter: grayscale(100%) contrast(1.1) sepia(20%);
  mix-blend-mode: multiply;
}

/* ============ WELCOME SCREEN ============ */
.welcome-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 48px;
  position: relative;
  z-index: 1;
  animation: fadeInUp 0.9s ease-out;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.welcome-inner {
  text-align: center;
  max-width: 460px;
}

.welcome-image {
  position: relative;
  width: 200px;
  height: 260px;
  margin: 0 auto 32px;
  border-radius: 140px 140px 20px 20px;
  overflow: hidden;
  box-shadow:
    0 12px 48px rgba(61, 46, 46, 0.1),
    0 0 0 1px rgba(244, 166, 131, 0.12),
    0 0 80px rgba(196, 177, 212, 0.1);
}

.welcome-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.image-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center bottom, rgba(244,166,131,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.welcome-inner h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.3rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.welcome-tagline {
  font-family: 'Lora', serif;
  font-size: 0.92rem;
  color: var(--text-medium);
  line-height: 1.7;
  font-style: italic;
}

.btn-enter {
  margin-top: 32px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: none;
  border-radius: 40px;
  background: linear-gradient(135deg, var(--peach) 0%, var(--blush) 100%);
  color: white;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.3px;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 20px rgba(244, 166, 131, 0.25);
}

.btn-enter:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(244, 166, 131, 0.35);
}

.btn-enter:active {
  transform: translateY(0) scale(0.97);
}

.btn-enter svg {
  width: 16px;
  height: 16px;
}

.btn-play-all {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border: 2px solid var(--gold);
  border-radius: 40px;
  background: transparent;
  color: var(--gold);
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.3px;
  transition: all var(--transition-smooth);
}

.btn-play-all:hover {
  background: var(--gold);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

.btn-play-all:active {
  transform: translateY(0) scale(0.97);
}

.btn-play-all svg {
  width: 14px;
  height: 14px;
}

.btn-play-all.playing {
  background: var(--gold);
  color: white;
  animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.4); }
  50% { box-shadow: 0 0 0 10px rgba(212, 175, 55, 0); }
}

/* ============ QUOTES VIEW ============ */
.quotes-container {
  display: none;
  padding: 48px 56px;
  max-width: 860px;
  position: relative;
  z-index: 1;
}

.quotes-container.visible {
  display: block;
  animation: contentReveal 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes contentReveal {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.chapter-header {
  margin-bottom: 32px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.chapter-header .chapter-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--peach);
  font-weight: 600;
  margin-bottom: 8px;
}

.chapter-header h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.65rem;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.3;
}

/* ============ QUOTE CARDS ============ */
.quote-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 30px 32px;
  margin-bottom: 18px;
  border: 1px solid var(--card-border);
  transition: transform var(--transition-fast), box-shadow var(--transition-smooth);
  will-change: transform;
  animation: cardSlideIn var(--transition-smooth) backwards;
}

.quote-card:nth-child(1) { animation-delay: 0.04s; }
.quote-card:nth-child(2) { animation-delay: 0.08s; }
.quote-card:nth-child(3) { animation-delay: 0.12s; }
.quote-card:nth-child(4) { animation-delay: 0.16s; }
.quote-card:nth-child(5) { animation-delay: 0.2s; }
.quote-card:nth-child(6) { animation-delay: 0.24s; }

@keyframes cardSlideIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.quote-card:hover {
  transform: translateY(-2px);
  box-shadow:
    0 8px 32px rgba(61, 46, 46, 0.06),
    0 0 0 1px rgba(244, 166, 131, 0.08);
}

/* ============ ADDRESSED TO ============ */
.quote-addressed {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gold-soft);
  letter-spacing: 0.02em;
  margin-bottom: 10px;
  text-transform: capitalize;
}

/* ============ QUOTE TEXT ============ */
.quote-text {
  font-family: 'Lora', serif;
  font-size: 1.15rem;
  line-height: 1.85;
  color: var(--text-dark);
  font-style: italic;
  font-weight: 400;
  margin-bottom: 18px;
  padding-left: 20px;
  border-left: 2.5px solid var(--peach-soft);
  position: relative;
}

.quote-text::before {
  content: "\201C";
  position: absolute;
  top: -10px;
  left: 18px;
  font-family: 'Cormorant Garamond', serif;
  font-size: 3.5rem;
  color: var(--peach-soft);
  line-height: 1;
  font-style: normal;
  opacity: 0.5;
}

/* ============ ACTION BUTTONS ============ */
.quote-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--warm-white);
  color: var(--text-medium);
  font-size: 0.73rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  letter-spacing: 0.2px;
}

.btn:hover {
  background: var(--peach-light);
  color: var(--text-dark);
  border-color: var(--peach-soft);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0) scale(0.97);
}

.btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.btn-audio.speaking {
  background: linear-gradient(135deg, var(--peach) 0%, var(--blush) 100%);
  color: white;
  border-color: var(--peach);
}

.btn-audio.speaking .audio-icon-waves {
  animation: wavePulse 1s ease-in-out infinite;
}

@keyframes wavePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ============ CONTEXT PANEL ============ */
.context-panel {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.35s ease,
              margin 0.35s ease,
              padding 0.35s ease;
  margin-top: 0;
  padding: 0 24px;
  background: linear-gradient(135deg, var(--sage-light) 0%, var(--lavender-light) 100%);
  border-radius: 12px;
  border: 1px solid transparent;
}

.context-panel.visible {
  max-height: 600px;
  opacity: 1;
  margin-top: 14px;
  padding: 20px 24px;
  border-color: rgba(181, 201, 179, 0.25);
}

.context-panel h4 {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  color: var(--sage);
  margin-bottom: 10px;
  font-weight: 600;
}

.context-panel p {
  font-size: 0.87rem;
  line-height: 1.8;
  color: var(--text-medium);
}

/* ============ FULL CHAPTER OVERLAY ============ */
.chapter-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background: rgba(46, 36, 51, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.chapter-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.chapter-overlay-content {
  width: 90%;
  max-width: 780px;
  max-height: 88vh;
  background: var(--warm-white);
  border-radius: 20px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(20px);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.chapter-overlay.visible .chapter-overlay-content {
  transform: translateY(0);
}

.chapter-overlay-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 28px 32px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--peach-light) 0%, var(--lavender-light) 100%);
  flex-shrink: 0;
}

.chapter-overlay-header .chapter-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--peach);
  font-weight: 600;
  margin-bottom: 6px;
}

.chapter-overlay-header h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.35;
}

.chapter-overlay-close {
  flex-shrink: 0;
  margin-left: 16px;
}

.chapter-overlay-body {
  padding: 28px 32px 36px;
  overflow-y: auto;
  flex: 1;
  -webkit-overflow-scrolling: touch;
}

.chapter-overlay-body p {
  font-family: 'Lora', serif;
  font-size: 0.95rem;
  line-height: 1.95;
  color: var(--text-dark);
  margin-bottom: 18px;
  text-align: justify;
}

.chapter-overlay-body p:last-child {
  margin-bottom: 0;
}

.chapter-loading {
  text-align: center;
  color: var(--text-light);
  font-style: italic;
}

.btn-chapter {
  color: var(--lavender) !important;
  border-color: var(--lavender-light) !important;
}

.btn-chapter:hover {
  background: var(--lavender-light) !important;
  border-color: var(--lavender) !important;
  color: var(--text-dark) !important;
}

.btn-link {
  color: #7c9a8e !important;
  border-color: #d4e4dc !important;
}

.btn-link:hover {
  background: #d4e4dc !important;
  border-color: #7c9a8e !important;
  color: var(--text-dark) !important;
}

.quote-card.highlighted {
  animation: highlightPulse 3s ease-out;
}

@keyframes highlightPulse {
  0% { box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.6); transform: scale(1.01); }
  50% { box-shadow: 0 0 0 8px rgba(212, 175, 55, 0.3); }
  100% { box-shadow: none; transform: scale(1); }
}

/* ============ MUSIC CONTROL ============ */
.music-control {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 100;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--warm-white);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(61, 46, 46, 0.08);
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.music-control:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(61, 46, 46, 0.12);
}

.music-control.playing {
  background: linear-gradient(135deg, var(--lavender-light), var(--peach-light));
  border-color: var(--lavender);
  animation: musicPulse 2s ease-in-out infinite;
}

@keyframes musicPulse {
  0%, 100% { box-shadow: 0 4px 16px rgba(196, 177, 212, 0.15); }
  50% { box-shadow: 0 4px 24px rgba(196, 177, 212, 0.3); }
}

.music-control svg {
  width: 20px;
  height: 20px;
  color: var(--text-medium);
}

.music-control.playing svg {
  color: var(--lavender);
}

/* ============ MOBILE ============ */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 1001;
  width: 42px;
  height: 42px;
  border: none;
  background: var(--sidebar-bg);
  border-radius: 12px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  -webkit-tap-highlight-color: transparent;
}

.mobile-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--peach-soft);
  border-radius: 1px;
  transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(46, 36, 51, 0.35);
  z-index: 998;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-overlay.visible {
  display: block;
  opacity: 1;
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    z-index: 999;
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
  }

  .mobile-toggle {
    display: flex;
  }

  .quotes-container {
    padding: 24px 20px;
    padding-top: 64px;
  }

  .welcome-screen {
    padding: 24px;
    padding-top: 64px;
  }

  .welcome-image {
    width: 150px;
    height: 200px;
  }

  .quote-card {
    padding: 20px;
  }

  .quote-text {
    font-size: 1rem;
  }

  .baba-bg-image {
    width: 100%;
    left: 0;
  }

  .music-control {
    bottom: 14px;
    right: 14px;
    width: 38px;
    height: 38px;
  }
}