/* ==========================================================================
   Anthropic Design System — Cinematic Spatial Keynote (网页动画极限巅峰版)
   - 3D Spatial Perspective Camera Navigation (深度空间运镜)
   - Virtual Laser Pointer / Presenter Spotlight [L key]
   - SVG Diplomatic Radar, 350km/h Speedometer, & Five Worlds Pentagram Ring
   - Ambient Golden Stardust Particle Canvas
   - 1.8s Eased Number Ticker & Stage Scale Typography
   ========================================================================== */

:root {
  /* Colors */
  --color-slate-dark: #141413;
  --color-ivory-medium: #f0eee6;
  --color-ivory-light: #faf9f5;
  --color-cloud-medium: #b0aea5;
  --color-cloud-dark: #87867f;
  --color-stone: #cccbc8;
  --color-slate-medium: #3d3d3a;
  --color-oat-warm: #e3dacc;
  --color-manilla: #f5e3c7;
  --color-clay: #d97757;
  --color-clay-deep: #c6613f;
  --color-gold: #c29b38;
  --color-gold-bright: #e5b94c;

  /* Surfaces */
  --surface-canvas: #f0eee6;
  --surface-card-surface: #faf9f5;
  --surface-warm-feature-surface: #f5e3c7;
  --surface-deep-warm-surface: #e3dacc;
  --surface-inversion-surface: #141413;

  /* Typography Stack */
  --font-serif-display: 'Cinzel', 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'STSong', Georgia, serif;
  --font-anthropic-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'SimSun', Georgia, serif;
  --font-anthropic-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-anthropic-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Stage Scale */
  --text-caption: 13px;
  --text-body-sm: 16px;
  --text-body: 19px;
  --text-subheading: 26px;
  --text-heading: 48px;
  --text-display: 64px;

  /* Radii */
  --radius-cards: 22px;
  --radius-buttons: 8px;

  /* Spacing */
  --spacing-4: 4px;
  --spacing-8: 8px;
  --spacing-12: 12px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-32: 32px;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--color-ivory-medium);
  color: var(--color-slate-dark);
  font-family: var(--font-anthropic-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.deck-app {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--surface-canvas);
  user-select: none;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Tactile Noise & Ambient Stardust Canvas
   -------------------------------------------------------------------------- */
.paper-grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 90;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

#ambientParticleCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 2;
  opacity: 0.7;
}

.celestial-bg-rings {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1200px;
  height: 1200px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 1;
  opacity: 0.22;
  animation: rotate-celestial 140s linear infinite;
}

@keyframes rotate-celestial {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* --------------------------------------------------------------------------
   Virtual Laser Pointer & Spotlight Overlay ([L] Key)
   -------------------------------------------------------------------------- */
#stageSpotlight {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 200;
  display: none;
  background: radial-gradient(circle 180px at var(--spot-x, 50vw) var(--spot-y, 50vh), transparent 0%, rgba(20, 20, 19, 0.6) 100%);
  transition: opacity 0.2s ease;
}

#stageSpotlight.active {
  display: block;
}

.laser-pip {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-clay);
  box-shadow: 0 0 14px 4px rgba(217, 119, 87, 0.8), 0 0 4px 1px #fff;
  transform: translate(-50%, -50%);
  left: var(--spot-x, 50vw);
  top: var(--spot-y, 50vh);
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   Top Navigation Bar
   -------------------------------------------------------------------------- */
.deck-header {
  position: relative;
  z-index: 50;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-24);
  background-color: rgba(240, 238, 230, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-stone);
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-12);
}

.brand-logo {
  font-family: var(--font-serif-display);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--color-slate-dark);
}

.brand-divider {
  width: 1px;
  height: 16px;
  background-color: var(--color-stone);
}

.brand-context {
  font-family: var(--font-anthropic-serif);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-cloud-dark);
}

.slide-section-pill {
  font-family: var(--font-anthropic-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.8px;
  padding: 5px 16px;
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-buttons);
  color: var(--color-slate-dark);
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-family: var(--font-anthropic-sans);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 8px 16px;
}

.btn-ivory {
  background-color: var(--surface-card-surface);
  color: var(--color-slate-dark);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-buttons);
}

.btn-ivory:hover {
  background-color: var(--surface-deep-warm-surface);
  border-color: var(--color-cloud-dark);
  transform: translateY(-1px);
}

.btn-clay {
  background-color: var(--color-clay);
  color: #faf9f5;
  border-radius: 0 0 8px 8px; /* Signature Bottom-Only Radius */
  box-shadow: 0 4px 14px rgba(217, 119, 87, 0.25);
}

.btn-clay:hover {
  background-color: var(--color-clay-deep);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(217, 119, 87, 0.35);
}

.btn-text {
  background: transparent;
  color: var(--color-cloud-dark);
  padding: 8px 10px;
  border-radius: var(--radius-buttons);
}

.btn-text:hover {
  color: var(--color-slate-dark);
  background-color: rgba(0,0,0,0.04);
}

.btn-text.active {
  color: var(--color-clay);
  background-color: rgba(217, 119, 87, 0.1);
}

/* --------------------------------------------------------------------------
   3D Spatial Keynote Stage & Projection Canvas
   -------------------------------------------------------------------------- */
.presentation-stage {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 14px;
  perspective: 1400px;
  perspective-origin: 50% 50%;
}

.slide-canvas {
  position: relative;
  width: 1280px;
  height: 720px;
  background-color: var(--surface-canvas);
  overflow: hidden;
  transform-origin: center center;
  transform-style: preserve-3d;
  z-index: 10;
  box-shadow: 0 0 0 1px var(--color-stone), 0 24px 60px rgba(0,0,0,0.08);
}

/* 3D Depth Transitions */
.slide-frame {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 36px 52px 32px;
  opacity: 0;
  pointer-events: none;
  transform: translateZ(-280px) translateY(20px) scale(0.92);
  filter: blur(4px);
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.55s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.55s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
}

.slide-frame.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateZ(0) translateY(0) scale(1);
  filter: blur(0);
}

/* Slide Header Meta */
.slide-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.slide-category-tag {
  font-family: var(--font-anthropic-sans);
  font-size: var(--text-caption);
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-clay);
  display: flex;
  align-items: center;
  gap: 8px;
}

.slide-category-tag::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-clay);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(217, 119, 87, 0.8);
}

.slide-time-target {
  font-family: var(--font-anthropic-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-cloud-dark);
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  padding: 3px 10px;
  border-radius: 4px;
}

.slide-title-serif {
  font-family: var(--font-serif-display);
  font-size: 44px;
  font-weight: 900;
  line-height: 1.15;
  color: var(--color-slate-dark);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

/* --------------------------------------------------------------------------
   Slide 1: Cover (Monumental Treaty Spread)
   -------------------------------------------------------------------------- */
.cover-layout {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.cover-header-decor {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--color-stone);
  padding-bottom: 12px;
}

.cover-hero-block {
  margin-top: 4px;
}

.cover-tagline {
  font-family: var(--font-serif-display);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-clay);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.cover-tagline::after {
  content: "";
  height: 2px;
  width: 90px;
  background: var(--color-clay);
}

.cover-title {
  font-family: var(--font-serif-display);
  font-size: 64px;
  font-weight: 900;
  line-height: 1.08;
  color: var(--color-slate-dark);
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.cover-subtitle {
  font-family: var(--font-anthropic-serif);
  font-size: 25px;
  font-weight: 800;
  color: #3d3d3a;
  line-height: 1.35;
  margin-bottom: 18px;
}

.cover-lead {
  font-family: var(--font-anthropic-sans);
  font-size: 17px;
  line-height: 1.65;
  max-width: 920px;
  color: var(--color-slate-dark);
  border-left: 4px solid var(--color-clay);
  padding-left: 20px;
  background: linear-gradient(90deg, rgba(217, 119, 87, 0.08), transparent);
  padding-top: 8px;
  padding-bottom: 8px;
}

.cover-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-16);
  margin-top: 18px;
}

.cover-stat-card {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-cards);
  padding: 18px 22px;
  position: relative;
  border-top: 4px solid var(--color-clay);
  box-shadow: 0 6px 18px rgba(0,0,0,0.03);
}

.cover-stat-label {
  font-size: 12px;
  font-weight: 800;
  color: var(--color-cloud-dark);
  margin-bottom: 4px;
  text-transform: uppercase;
}

.cover-stat-val {
  font-family: var(--font-serif-display);
  font-size: 32px;
  font-weight: 900;
  color: var(--color-slate-dark);
}

.cover-stat-note {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-cloud-dark);
  margin-top: 3px;
}

/* --------------------------------------------------------------------------
   3-Column Grand Layout (Stage Scale)
   -------------------------------------------------------------------------- */
.grid-three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-24);
  flex: 1;
}

.card-editorial {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-cards);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  box-shadow: 0 6px 20px rgba(0,0,0,0.03);
  border-top: 5px solid var(--color-slate-dark);
}

.card-editorial.gold-border {
  border-top-color: var(--color-clay);
}

.card-top-tag {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-clay);
  margin-bottom: 12px;
}

.card-headline {
  font-family: var(--font-anthropic-sans);
  font-size: 23px;
  font-weight: 800;
  color: var(--color-slate-dark);
  line-height: 1.3;
  margin-bottom: 14px;
}

.card-body-serif {
  font-family: var(--font-anthropic-serif);
  font-size: 16.5px;
  line-height: 1.6;
  color: #242422;
  flex: 1;
}

.card-metric-footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--color-stone);
  display: flex;
  flex-direction: column;
}

.metric-number {
  font-family: var(--font-anthropic-mono);
  font-size: 34px;
  font-weight: 900;
  color: var(--color-slate-dark);
  letter-spacing: -0.5px;
}

.metric-caption {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-cloud-dark);
  margin-top: 3px;
}

/* --------------------------------------------------------------------------
   Feature Split (Constitution & Treaty Plaque)
   -------------------------------------------------------------------------- */
.feature-split-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: var(--spacing-24);
  flex: 1;
}

.card-manilla-hero {
  background-color: var(--surface-warm-feature-surface);
  border-radius: var(--radius-cards);
  padding: 34px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 2px solid rgba(217, 119, 87, 0.35);
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.badge-manilla {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-clay-deep);
  margin-bottom: 14px;
  padding: 5px 12px;
  background-color: rgba(217, 119, 87, 0.14);
  border-radius: 4px;
}

.hero-manilla-title {
  font-family: var(--font-serif-display);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.25;
  color: var(--color-slate-dark);
  margin-bottom: 16px;
}

.hero-manilla-text {
  font-family: var(--font-anthropic-serif);
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-slate-dark);
}

.points-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
}

.point-item {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: 16px;
  padding: 18px 20px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  border-left: 5px solid var(--color-slate-dark);
  box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.point-item:hover {
  border-left-color: var(--color-clay);
}

.point-num {
  font-family: var(--font-anthropic-mono);
  font-size: 18px;
  font-weight: 900;
  color: var(--color-clay);
  line-height: 1.2;
}

.point-content h4 {
  font-family: var(--font-anthropic-sans);
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 4px;
  color: var(--color-slate-dark);
}

.point-content p {
  font-family: var(--font-anthropic-serif);
  font-size: 14.5px;
  line-height: 1.5;
  color: #3d3d3a;
}

/* --------------------------------------------------------------------------
   Slide 4: Panoramic Peace Accord & Interactive Radar Diagram
   -------------------------------------------------------------------------- */
.peace-panorama-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-20);
  flex: 1;
}

.peace-card {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-cards);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-top: 5px solid var(--color-clay);
  box-shadow: 0 6px 18px rgba(0,0,0,0.03);
}

.peace-tag {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-clay-deep);
  margin-bottom: 8px;
}

.peace-headline {
  font-family: var(--font-serif-display);
  font-size: 21px;
  font-weight: 900;
  color: var(--color-slate-dark);
  margin-bottom: 10px;
  line-height: 1.3;
}

.peace-desc {
  font-family: var(--font-anthropic-serif);
  font-size: 15px;
  line-height: 1.55;
  color: #333330;
  margin-bottom: 14px;
}

.peace-bullets {
  border-top: 1px solid var(--color-stone);
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.peace-bullet-item {
  font-family: var(--font-anthropic-sans);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-slate-dark);
  display: flex;
  gap: 6px;
}

.peace-bullet-item::before {
  content: "•";
  color: var(--color-clay);
  font-weight: 900;
}

/* --------------------------------------------------------------------------
   Slide 6: Speedometer & Land-Linked Gauge
   -------------------------------------------------------------------------- */
.speed-gauge-visual {
  position: relative;
  width: 100%;
  height: 60px;
  background: linear-gradient(90deg, rgba(217,119,87,0.1), rgba(217,119,87,0.3));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border: 1px solid rgba(217,119,87,0.3);
  margin-top: 10px;
}

.speed-gauge-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--color-clay), var(--color-gold));
  border-radius: 8px;
  opacity: 0.25;
  width: 100%;
  animation: pulse-gauge 3s infinite ease-in-out;
}

@keyframes pulse-gauge {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.45; }
}

/* --------------------------------------------------------------------------
   Slide 7: Five Worlds (Pentagonal Orbit)
   -------------------------------------------------------------------------- */
.five-worlds-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  flex: 1;
}

.world-card {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: 20px;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-top: 4px solid var(--color-clay);
  box-shadow: 0 6px 16px rgba(0,0,0,0.03);
}

.world-no {
  font-family: var(--font-serif-display);
  font-size: 16px;
  font-weight: 900;
  color: var(--color-clay);
}

.world-name {
  font-family: var(--font-anthropic-sans);
  font-size: 18px;
  font-weight: 900;
  color: var(--color-slate-dark);
  margin: 10px 0 6px;
}

.world-approach {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: var(--color-clay-deep);
  margin-bottom: 12px;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.world-desc {
  font-family: var(--font-anthropic-serif);
  font-size: 14px;
  line-height: 1.5;
  color: #3d3d3a;
  flex: 1;
}

/* --------------------------------------------------------------------------
   Slide 8: Triad Monolithic Pillars
   -------------------------------------------------------------------------- */
.initiatives-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 16px;
}

.initiatives-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  flex: 1;
}

.init-card {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-cards);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  border-top: 6px solid var(--color-clay);
  box-shadow: 0 6px 18px rgba(0,0,0,0.03);
}

.init-code {
  font-family: var(--font-serif-display);
  font-size: 32px;
  font-weight: 900;
  color: var(--color-clay);
  letter-spacing: -0.5px;
}

.init-title {
  font-family: var(--font-anthropic-sans);
  font-size: 20px;
  font-weight: 800;
  margin: 6px 0 2px;
}

.init-sub {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-cloud-dark);
  margin-bottom: 12px;
}

.init-focus {
  font-family: var(--font-anthropic-sans);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-slate-dark);
  margin-bottom: 8px;
}

.init-detail {
  font-family: var(--font-anthropic-serif);
  font-size: 14.5px;
  line-height: 1.5;
  color: #3d3d3a;
}

.initiatives-banner {
  background-color: var(--surface-warm-feature-surface);
  border: 1px solid rgba(217, 119, 87, 0.3);
  border-radius: 14px;
  padding: 14px 22px;
  font-family: var(--font-anthropic-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-slate-dark);
}

/* --------------------------------------------------------------------------
   Slide 9: Youth Action (Grand Stage Climax)
   -------------------------------------------------------------------------- */
.youth-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  flex: 1;
}

.youth-card {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-cards);
  padding: 34px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  border-top: 6px solid var(--color-slate-dark);
  box-shadow: 0 6px 20px rgba(0,0,0,0.04);
}

.youth-card:hover {
  border-top-color: var(--color-clay);
}

.youth-card h3 {
  font-family: var(--font-serif-display);
  font-size: 28px;
  font-weight: 900;
  color: var(--color-slate-dark);
  margin-bottom: 16px;
}

.youth-card p {
  font-family: var(--font-anthropic-serif);
  font-size: 17px;
  line-height: 1.7;
  color: #3d3d3a;
}

/* --------------------------------------------------------------------------
   Slide 10: Recap & Mindmap
   -------------------------------------------------------------------------- */
.recap-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  flex: 1;
}

.mindmap-box {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-cards);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mindmap-node {
  background-color: var(--surface-canvas);
  border-left: 5px solid var(--color-clay);
  padding: 10px 14px;
  border-radius: 6px;
}

.node-title {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-slate-dark);
  text-transform: uppercase;
}

.node-text {
  font-family: var(--font-anthropic-serif);
  font-size: 14px;
  color: #4a4943;
}

.qa-box {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.qa-card {
  background-color: var(--surface-warm-feature-surface);
  border: 1px solid rgba(217, 119, 87, 0.3);
  border-radius: 16px;
  padding: 18px 20px;
}

.qa-title {
  font-family: var(--font-anthropic-sans);
  font-size: 14px;
  font-weight: 800;
  color: var(--color-clay-deep);
  margin-bottom: 6px;
}

.qa-text {
  font-family: var(--font-anthropic-serif);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--color-slate-dark);
}

.recap-closing-banner {
  background-color: var(--color-slate-dark);
  color: var(--surface-card-surface);
  border-radius: 16px;
  padding: 16px 20px;
  font-family: var(--font-anthropic-serif);
  font-size: 15px;
  line-height: 1.55;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* --------------------------------------------------------------------------
   Bottom Control Chrome & Time Bar
   -------------------------------------------------------------------------- */
.deck-footer {
  height: 58px;
  background-color: rgba(240, 238, 230, 0.94);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-stone);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-24);
  z-index: 50;
}

.slide-controls-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-16);
}

.slide-counter {
  font-family: var(--font-anthropic-mono);
  font-size: 14px;
  font-weight: 800;
  color: var(--color-slate-dark);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.counter-current {
  font-size: 19px;
  color: var(--color-clay);
}

.counter-divider {
  color: var(--color-cloud-medium);
}

.counter-total {
  color: var(--color-cloud-dark);
}

.slide-progress-track {
  width: 240px;
  height: 5px;
  background-color: var(--color-stone);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.slide-progress-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 10%;
  background: linear-gradient(90deg, var(--color-clay), var(--color-clay-deep));
  transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.speech-timer-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-anthropic-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-slate-dark);
  background-color: var(--surface-card-surface);
  padding: 5px 12px;
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-buttons);
}

.timer-dot {
  width: 7px;
  height: 7px;
  background-color: #27ae60;
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(39, 174, 96, 0.6);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(0.8); }
}

.slide-controls-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-arrow-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-buttons);
  cursor: pointer;
  color: var(--color-slate-dark);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-arrow-btn:hover {
  background-color: var(--surface-deep-warm-surface);
  border-color: var(--color-cloud-dark);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   Presenter Console Modal
   -------------------------------------------------------------------------- */
.presenter-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(20, 20, 19, 0.75);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

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

.presenter-console {
  width: 1140px;
  max-width: 96vw;
  height: 86vh;
  background-color: var(--surface-canvas);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-cards);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,0.3);
}

.presenter-header {
  height: 56px;
  background-color: var(--surface-inversion-surface);
  color: var(--surface-card-surface);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.presenter-title {
  font-family: var(--font-anthropic-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.presenter-body {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  overflow: hidden;
}

.presenter-preview-col {
  padding: 24px;
  border-right: 1px solid var(--color-stone);
  display: flex;
  flex-direction: column;
  gap: 16px;
  background-color: var(--surface-canvas);
  overflow-y: auto;
}

.presenter-thumb-box {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: 14px;
  padding: 16px;
}

.thumb-label {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-cloud-dark);
  margin-bottom: 6px;
}

.thumb-title {
  font-family: var(--font-anthropic-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-slate-dark);
}

.presenter-notes-col {
  padding: 28px 34px;
  background-color: var(--surface-card-surface);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.notes-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-stone);
}

.notes-label {
  font-family: var(--font-anthropic-sans);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-clay);
}

.pacing-status-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  background-color: #eafaf1;
  color: #27ae60;
}

.pacing-status-badge.fast {
  background-color: #fef9e7;
  color: #f39c12;
}

.pacing-status-badge.slow {
  background-color: #fdedec;
  color: #e74c3c;
}

.notes-body-text {
  font-family: var(--font-anthropic-serif);
  font-size: 18px;
  line-height: 1.75;
  color: var(--color-slate-dark);
  white-space: pre-line;
  flex: 1;
}

/* --------------------------------------------------------------------------
   Overview Modal & Shortcuts Modal
   -------------------------------------------------------------------------- */
.overview-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(240, 238, 230, 0.97);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  flex-direction: column;
  padding: 40px;
  overflow-y: auto;
}

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

.overview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto 30px;
  width: 100%;
}

.overview-title {
  font-family: var(--font-serif-display);
  font-size: 32px;
  font-weight: 900;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.overview-card {
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: 16px;
  padding: 18px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 145px;
  transition: all 0.25s ease;
}

.overview-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-clay);
  box-shadow: 0 8px 20px rgba(0,0,0,0.06);
}

.overview-card.active {
  border: 2px solid var(--color-clay);
  background-color: #fff;
}

.overview-card-num {
  font-family: var(--font-anthropic-mono);
  font-size: 13px;
  font-weight: 800;
  color: var(--color-clay);
}

.overview-card-title {
  font-family: var(--font-serif-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-slate-dark);
}

.overview-card-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-cloud-dark);
  text-transform: uppercase;
}

.shortcuts-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--surface-card-surface);
  border: 1px solid var(--color-stone);
  border-radius: var(--radius-cards);
  padding: 30px 38px;
  z-index: 1200;
  display: none;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.shortcuts-dialog.open {
  display: block;
}

.shortcuts-dialog h3 {
  font-family: var(--font-serif-display);
  font-size: 22px;
  font-weight: 900;
  margin-bottom: 16px;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px solid var(--color-stone);
  font-size: 13px;
}

.kbd {
  font-family: var(--font-anthropic-mono);
  background-color: var(--surface-canvas);
  border: 1px solid var(--color-stone);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Print Stylesheet
   -------------------------------------------------------------------------- */
@media print {
  body, html {
    overflow: visible !important;
    height: auto !important;
    background: #fff !important;
  }
  .deck-header, .deck-footer, .presenter-modal, .overview-modal, .shortcuts-dialog, .celestial-bg-rings, .paper-grain-overlay, #ambientParticleCanvas, #stageSpotlight {
    display: none !important;
  }
  .deck-app, .presentation-stage {
    display: block !important;
    padding: 0 !important;
    width: 100% !important;
    height: auto !important;
  }
  .slide-canvas {
    transform: none !important;
    width: 100% !important;
    height: auto !important;
  }
  .slide-frame {
    position: relative !important;
    opacity: 1 !important;
    transform: none !important;
    page-break-after: always;
    width: 100% !important;
    height: 100vh !important;
    padding: 40px !important;
  }
}