/* ===================================================================
   CCMUN 2026 UNGA2 Courseware — Amber & Sage Design System
   Warm earth palette: amber gold, sage green, terracotta, deep brown
   =================================================================== */

:root {
  --bg-deep: #1f1510;
  --bg-surface: #2a1f18;
  --bg-elevated: #3a2a1e;
  --aged-paper: #ede0c8;
  --muted-gold: #c9a84a;
  --faded-teal: #5a8a8a;
  --cream: #f5eddd;
  --text-primary: #e0d4c0;
  --text-secondary: #b8a88a;
  --text-muted: #8a7a6a;
  --accent-amber: #c9a84a;
  --accent-sage: #7a9a6a;
  --accent-terracotta: #c97a4a;
  --accent-teal: #5a8a8a;
  --accent-warm: #d4874a;
  --accent-red: #b85a4a;
  --accent-green: #6a8a5a;
  --border-subtle: rgba(201, 168, 74, 0.2);
  --shadow-deep: rgba(0, 0, 0, 0.5);
  --overlay-dark: rgba(31, 21, 16, 0.85);
  --player-height: 64px;
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: 'Georgia', 'Times New Roman', serif;
  --font-ui: 'Helvetica Neue', 'Segoe UI', sans-serif;
  --font-mono: 'Courier Prime', 'Courier New', monospace;
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-10: 40px;
  --space-12: 48px; --space-16: 64px;
  --radius-sm: 4px; --radius-md: 8px; --radius-lg: 12px; --radius-xl: 16px;
  --transition-fast: 150ms ease; --transition-normal: 300ms ease; --transition-slow: 500ms ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; overflow: hidden; }

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.8;
  min-height: 100vh;
  overflow: hidden;
}

/* Warm paper grain overlay */
body::before {
  content: ''; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 1000; opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Warm vignette */
body::after {
  content: ''; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 999;
  background: radial-gradient(ellipse at center, transparent 35%, rgba(31, 21, 16, 0.6) 100%);
}

/* ========== Page ========== */
.page {
  position: fixed; top: 0; left: 0; right: 0;
  bottom: var(--player-height);
  display: flex; flex-direction: column; justify-content: flex-start;
  align-items: center; padding: var(--space-8) var(--space-6) var(--space-16);
  overflow-y: auto; overflow-x: hidden; -webkit-overflow-scrolling: touch;
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease, visibility 0.6s ease;
}
.page.active { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); z-index: 1; }
.page-content { padding-top: var(--space-10); }
.page-title { justify-content: center; padding-top: 0; }

/* Warm ambient gradient */
.page::before {
  content: ''; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(201, 168, 74, 0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 75% 80%, rgba(122, 154, 106, 0.05) 0%, transparent 45%),
    radial-gradient(ellipse at 25% 70%, rgba(90, 138, 138, 0.04) 0%, transparent 40%),
    linear-gradient(180deg, #1f1510 0%, #2a1f18 50%, #1f1510 100%);
  z-index: -1;
}
.page-title::before {
  background:
    radial-gradient(ellipse at 50% 20%, rgba(201, 168, 74, 0.12) 0%, transparent 45%),
    radial-gradient(ellipse at 75% 80%, rgba(122, 154, 106, 0.08) 0%, transparent 40%),
    radial-gradient(ellipse at 25% 75%, rgba(90, 138, 138, 0.06) 0%, transparent 40%),
    linear-gradient(180deg, #1f1510 0%, #2a2218 50%, #1f1510 100%);
}

.content-container { max-width: 920px; width: 100%; margin: 0 auto; padding: var(--space-6); position: relative; z-index: 1; }

/* ========== Typography ========== */
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--cream); line-height: 1.4; margin-bottom: var(--space-4); }
h1 { font-size: 2.4rem; letter-spacing: 0.5px; text-shadow: 2px 2px 4px rgba(0,0,0,0.5); }
h2 { font-size: 1.7rem; letter-spacing: 0.3px; border-bottom: 2px solid var(--border-subtle); padding-bottom: var(--space-3); margin-bottom: var(--space-6); }
h3 { font-size: 1.25rem; color: var(--accent-amber); margin-top: var(--space-6); margin-bottom: var(--space-3); }
h4 { font-size: 1rem; color: var(--accent-sage); font-weight: 600; }
p { font-size: 1rem; line-height: 1.9; color: var(--text-primary); margin-bottom: var(--space-4); text-align: justify; }
p:last-child { margin-bottom: 0; }

/* ========== Special Text ========== */
.quote {
  border-left: 4px solid var(--accent-amber);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  background: rgba(201, 168, 74, 0.08);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--cream);
  font-size: 1.05rem;
  line-height: 1.8;
}
.quote cite { display: block; margin-top: var(--space-3); font-size: 0.9rem; color: var(--accent-sage); font-style: normal; }

.highlight { color: var(--accent-amber); font-weight: 600; }

.key-term {
  display: inline-block; background: rgba(201, 168, 74, 0.15);
  color: var(--accent-amber); padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm); font-weight: 600;
  border: 1px solid rgba(201, 168, 74, 0.3);
}

.timestamp {
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent-teal);
  background: rgba(90, 138, 138, 0.15);
  padding: var(--space-1) var(--space-2); border-radius: var(--radius-sm);
  display: inline-block; margin-bottom: var(--space-3);
}

/* ========== Cards ========== */
.info-card {
  background: rgba(42, 31, 24, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  backdrop-filter: blur(8px);
}
.info-card h3 { margin-top: 0; border-bottom: 1px solid var(--border-subtle); padding-bottom: var(--space-3); }

.data-card {
  display: inline-flex; flex-direction: column; align-items: center;
  background: rgba(31, 21, 16, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-2);
  min-width: 120px;
}
.data-card .value { font-family: var(--font-heading); font-size: 1.4rem; font-weight: 700; color: var(--accent-terracotta); }
.data-card .label { font-size: 0.8rem; color: var(--text-muted); margin-top: var(--space-1); text-align: center; }
.data-row { display: flex; flex-wrap: wrap; gap: var(--space-3); margin: var(--space-4) 0; justify-content: center; }

/* Alert cards */
.alert-card {
  background: rgba(201, 168, 74, 0.08);
  border: 1px solid rgba(201, 168, 74, 0.3);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-4) 0;
}
.alert-card.warning { border-color: var(--accent-terracotta); background: rgba(201, 122, 74, 0.1); }
.alert-card.info { border-color: var(--accent-teal); background: rgba(90, 138, 138, 0.08); }

/* ========== Lists ========== */
ul, ol { margin: var(--space-4) 0; padding-left: var(--space-6); }
li { margin-bottom: var(--space-3); color: var(--text-primary); line-height: 1.7; }
li strong { color: var(--cream); }

/* ========== Tables ========== */
table { width: 100%; border-collapse: collapse; margin: var(--space-6) 0; font-size: 0.95rem; }
th, td { padding: var(--space-3) var(--space-4); text-align: left; border-bottom: 1px solid var(--border-subtle); }
th { background: rgba(201, 168, 74, 0.1); color: var(--accent-amber); font-weight: 600; font-family: var(--font-ui); font-size: 0.9rem; }
tr:hover { background: rgba(201, 168, 74, 0.05); }
.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: var(--space-6) 0; }
.table-wrapper table { margin: 0; min-width: 600px; }

/* ========== Images ========== */
.image-container { margin: var(--space-6) 0; text-align: center; }
.lecture-image {
  max-width: 100%; height: auto; max-height: 45vh;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-subtle);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
  object-fit: contain;
}
.image-caption { font-size: 0.8rem; color: var(--text-muted); margin-top: var(--space-2); font-style: italic; line-height: 1.4; }

.split-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8);
  margin: var(--space-4) 0; align-items: center;
}
.split-layout .image-container { margin: 0; }
.split-layout .image-container .lecture-image { width: 100%; object-fit: cover; max-height: 40vh; }

/* ========== Navigation ========== */
.nav-arrow {
  position: fixed; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px;
  background: rgba(42, 31, 24, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  cursor: pointer; z-index: 100;
  transition: all var(--transition-normal); backdrop-filter: blur(8px);
}
.nav-arrow:hover { background: rgba(201, 168, 74, 0.2); border-color: var(--accent-amber); transform: translateY(-50%) scale(1.1); }
.nav-arrow svg { width: 24px; height: 24px; fill: var(--cream); }
.nav-arrow.prev { left: var(--space-4); }
.nav-arrow.next { right: var(--space-4); }

.page-indicator { position: fixed; right: var(--space-4); top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; gap: var(--space-2); z-index: 100; }
.page-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(201, 168, 74, 0.3); border: 1px solid rgba(201, 168, 74, 0.5); cursor: pointer; transition: all var(--transition-normal); }
.page-dot.active { background: var(--accent-amber); transform: scale(1.3); box-shadow: 0 0 10px rgba(201, 168, 74, 0.5); }
.page-dot:hover { background: rgba(201, 168, 74, 0.6); }

/* ========== Audio Player ========== */
.audio-player {
  position: fixed; bottom: 0; left: 0; right: 0; height: var(--player-height);
  background: rgba(31, 21, 16, 0.95); backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-subtle);
  display: flex; align-items: center; padding: 0 var(--space-6); gap: var(--space-4); z-index: 1000;
}
.audio-player .play-btn { width: 40px; height: 40px; border-radius: 50%; border: 2px solid var(--accent-amber); background: transparent; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all var(--transition-fast); flex-shrink: 0; }
.audio-player .play-btn:hover { background: var(--accent-amber); }
.audio-player .play-btn svg { width: 18px; height: 18px; fill: var(--accent-amber); transition: fill var(--transition-fast); }
.audio-player .play-btn:hover svg { fill: var(--bg-deep); }
.progress-container { flex: 1; display: flex; flex-direction: column; gap: var(--space-1); }
.progress-bar { width: 100%; height: 4px; background: rgba(201, 168, 74, 0.2); border-radius: 2px; cursor: pointer; position: relative; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--accent-teal), var(--accent-amber)); border-radius: 2px; width: 0%; transition: width 0.1s linear; position: relative; }
.progress-fill::after { content: ''; position: absolute; right: -6px; top: 50%; transform: translateY(-50%); width: 12px; height: 12px; background: var(--accent-amber); border-radius: 50%; opacity: 0; transition: opacity var(--transition-fast); }
.progress-bar:hover .progress-fill::after { opacity: 1; }
.progress-markers { position: absolute; top: 0; left: 0; right: 0; height: 100%; pointer-events: none; }
.progress-marker { position: absolute; top: -2px; width: 2px; height: 8px; background: rgba(201, 168, 74, 0.4); border-radius: 1px; }
.time-display { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); display: flex; justify-content: space-between; }
.volume-control { display: flex; align-items: center; gap: var(--space-2); }
.volume-slider { width: 80px; height: 4px; -webkit-appearance: none; background: rgba(201, 168, 74, 0.2); border-radius: 2px; outline: none; }
.volume-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; background: var(--accent-amber); border-radius: 50%; cursor: pointer; }

.subtitle-toggle { background: transparent; border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); padding: var(--space-1); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all var(--transition-fast); flex-shrink: 0; }
.subtitle-toggle:hover { background: rgba(201, 168, 74, 0.15); border-color: var(--accent-amber); }
.subtitle-toggle.active svg { fill: var(--accent-amber); }

/* ========== Bilingual Subtitles ========== */
.subtitle-container {
  position: fixed; bottom: calc(var(--player-height) + 12px); left: 50%;
  transform: translateX(-50%); width: 90%; max-width: 800px;
  text-align: center; z-index: 1001; pointer-events: none;
  padding: var(--space-3) var(--space-6);
  background: rgba(31, 21, 16, 0.9);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  transition: opacity 0.3s ease;
}
.subtitle-container.hidden { opacity: 0; }
.subtitle-en { font-family: 'Georgia', serif; font-size: 0.95rem; color: var(--accent-amber); line-height: 1.5; margin-bottom: var(--space-1); }
.subtitle-zh { font-family: 'Noto Sans SC', 'PingFang SC', sans-serif; font-size: 1rem; color: var(--cream); line-height: 1.5; }

/* ========== Title Page ========== */
.title-page { text-align: center; }
.title-page h1 {
  font-size: 2.6rem; margin-bottom: var(--space-4);
  background: linear-gradient(135deg, var(--cream), var(--accent-amber));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  color: transparent; background-clip: text;
}
.title-subtitle { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: var(--space-8); }
.objectives { text-align: left; max-width: 700px; margin: 0 auto; }
.objectives h3 { text-align: center; margin-bottom: var(--space-6); }
.objectives ul { list-style: none; padding: 0; }
.objectives li { padding: var(--space-3) var(--space-4); border-left: 3px solid var(--accent-teal); margin-bottom: var(--space-3); background: rgba(90, 138, 138, 0.08); border-radius: 0 var(--radius-md) var(--radius-md) 0; transition: all var(--transition-normal); }
.objectives li:hover { background: rgba(90, 138, 138, 0.15); border-left-color: var(--accent-amber); }

/* ========== Page Overflow ========== */
.page-overflow-indicator { position: sticky; bottom: 0; height: 40px; margin-top: -40px; background: transparent; pointer-events: none; z-index: 2; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; transition: opacity 0.5s ease; }
.page-overflow-indicator::before, .page-overflow-indicator::after { content: ''; width: 13px; height: 13px; border-right: 2px solid var(--accent-amber); border-bottom: 2px solid var(--accent-amber); animation: indicator-drift 2.4s ease-in-out infinite; }
.page-overflow-indicator::before { opacity: 0.55; }
.page-overflow-indicator::after { opacity: 0.75; }
.page-overflow-indicator.hidden { opacity: 0; }
@keyframes indicator-drift { 0%, 100% { transform: rotate(45deg) translateY(0); } 50% { transform: rotate(45deg) translateY(4px); } }

/* ========== Focus ========== */
.nav-arrow:focus, .page-dot:focus, .play-btn:focus, .subtitle-toggle:focus { outline: 2px solid var(--accent-amber); outline-offset: 2px; }

/* ========== Scrollbar ========== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: rgba(201, 168, 74, 0.3); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(201, 168, 74, 0.5); }

/* ========== Image fallback decoration ========== */
.image-placeholder {
  width: 100%; height: 200px;
  background: linear-gradient(135deg, rgba(201, 168, 74, 0.1), rgba(122, 154, 106, 0.1));
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-style: italic;
}

/* ========== Decorative divider ========== */
.section-divider {
  text-align: center; margin: var(--space-8) 0; color: var(--text-muted);
  font-size: 1.5rem; letter-spacing: 1em;
}

/* ========== Responsive ========== */
@media (min-width: 1200px) { .content-container { max-width: 1000px; } }
@media (max-width: 1024px) {
  :root { --player-height: 56px; }
  .nav-arrow { width: 40px; height: 40px; }
  .nav-arrow svg { width: 20px; height: 20px; }
  .page-indicator { right: var(--space-3); }
  .page-dot { width: 8px; height: 8px; }
  .content-container { max-width: 90vw; }
  h1 { font-size: 2rem; } h2 { font-size: 1.4rem; }
  .subtitle-en { font-size: 0.85rem; } .subtitle-zh { font-size: 0.9rem; }
}
@media (max-width: 768px) {
  :root { --player-height: 48px; }
  .page { padding: var(--space-6) var(--space-4) var(--space-12); }
  h1 { font-size: 1.6rem; } h2 { font-size: 1.2rem; }
  .content-container { max-width: 100%; padding: var(--space-3); }
  .nav-arrow { width: 36px; height: 36px; top: auto; bottom: calc(var(--player-height) + var(--space-4)); transform: none; }
  .nav-arrow.prev { left: var(--space-2); } .nav-arrow.next { right: var(--space-2); }
  .page-indicator { top: auto; bottom: calc(var(--player-height) + var(--space-2)); right: 50%; transform: translateX(50%); flex-direction: row; gap: var(--space-2); }
  .audio-player { height: var(--player-height); padding: 0 var(--space-3); }
  .volume-control { display: none; }
  .split-layout { grid-template-columns: 1fr; gap: var(--space-4); }
}
@media (max-width: 375px) { h1 { font-size: 1.4rem; } }

/* Back to home navigation */
.back-to-home { margin-top: var(--space-8); text-align: center; }
.cta-button { display: inline-block; padding: var(--space-3) var(--space-6); background: var(--accent); color: var(--bg); text-decoration: none; border-radius: 4px; font-weight: 500; transition: transform 0.2s; }
.cta-button:hover { transform: translateY(-2px); }

/* ===================================================================
   Home Button
   Fixed top-left button navigates back to course home
   =================================================================== */

.home-button {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 100;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-amber);
  border: 1px solid var(--accent-amber);
  cursor: pointer;
  opacity: 1;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-decoration: none;
}

.home-button svg {
  width: 20px;
  height: 20px;
  stroke: var(--bg-deep);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.35s ease;
}

.home-button:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(201, 168, 74, 0.4);
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .home-button { top: 12px; left: 12px; width: 42px; height: 42px; }
}

/* ===================================================================
   Home Page — Academic Editorial Layout (Phase 3 Polish)
   =================================================================== */

/* Hero with photographic substrate */
.course-hero { position: relative; width: 100%; height: clamp(380px, 50vh, 520px); overflow: hidden; }
.course-hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 40%; }
.course-hero-overlay { position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(45,35,25,0.35) 0%, rgba(45,35,25,0.65) 60%, var(--bg-deep) 100%); }
.course-hero-content { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; padding: var(--space-8); }
.course-hero-kicker { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent-amber); margin-bottom: var(--space-4); }
.course-hero-title { font-family: var(--font-heading); font-size: clamp(2rem, 5vw, 3.8rem); font-weight: 700; color: var(--aged-paper); letter-spacing: 0.02em; text-align: center; text-shadow: 0 2px 12px rgba(0,0,0,0.5); margin-bottom: var(--space-3); line-height: 1.2; }
.course-hero-subtitle { font-family: var(--font-body); font-size: clamp(0.9rem, 1.5vw, 1.15rem); color: rgba(237,224,200,0.75); letter-spacing: 0.08em; text-align: center; font-style: italic; margin-bottom: var(--space-6); }
.course-hero-rule { width: 60px; height: 2px; background: var(--accent-amber); margin: 0 auto var(--space-4); opacity: 0.8; }
.course-hero-tagline { font-family: var(--font-body); font-size: clamp(0.85rem, 1.2vw, 1rem); color: var(--text-secondary); text-align: center; letter-spacing: 0.04em; }

/* Committee dossier */
.course-dossier { max-width: 780px; margin: 0 auto; padding: var(--space-12) var(--space-6); position: relative; }
.dossier-heading { border-bottom: none; text-align: center; margin-bottom: var(--space-8); }
.dossier-heading-label { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--accent-amber); background: var(--bg-deep); padding: 0 var(--space-4); position: relative; display: inline-block; }
.dossier-heading-label::before, .dossier-heading-label::after { content: ''; position: absolute; top: 50%; width: 40px; height: 1px; background: var(--border-subtle); }
.dossier-heading-label::before { right: 100%; margin-right: var(--space-3); }
.dossier-heading-label::after { left: 100%; margin-left: var(--space-3); }
.dossier-body p { font-family: var(--font-body); font-size: 1rem; line-height: 1.9; color: var(--text-secondary); text-align: justify; margin-bottom: var(--space-5); }
.dossier-body p:first-child::first-letter { font-size: 2.8em; float: left; line-height: 0.8; margin-right: var(--space-2); margin-top: var(--space-1); color: var(--accent-amber); font-family: var(--font-heading); font-weight: 700; }
.dossier-stats { display: flex; justify-content: center; align-items: center; gap: var(--space-6); margin-top: var(--space-10); padding-top: var(--space-8); border-top: 1px solid var(--border-subtle); }
.dossier-stat { text-align: center; }
.dossier-stat-value { display: block; font-family: var(--font-heading); font-size: 1.6rem; font-weight: 700; color: var(--accent-amber); }
.dossier-stat-label { display: block; font-family: var(--font-mono); font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.15em; color: var(--text-muted); margin-top: var(--space-1); }
.dossier-stat-divider { width: 1px; height: 40px; background: var(--border-subtle); }

/* Card roman numerals */
.card-roman { font-family: var(--font-heading); font-size: 3rem; font-weight: 700; color: rgba(201,168,74,0.15); line-height: 1; margin-bottom: var(--space-3); position: absolute; top: var(--space-4); right: var(--space-5); }
.card-link em { font-family: var(--font-body); font-style: italic; }

/* Footer refinements */
.footer-rule { width: 40px; height: 1px; background: var(--accent-amber); margin: 0 auto var(--space-6); opacity: 0.5; }
.footer-main { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-muted); margin-bottom: var(--space-3); }
.footer-credit { font-size: 0.75rem; color: var(--text-muted); line-height: 1.6; }
.footer-credit a { color: var(--accent-amber); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.footer-credit a:hover { border-bottom-color: var(--accent-amber); }
.footer-legal { font-size: 0.7rem; color: var(--text-muted); margin-top: var(--space-3); opacity: 0.7; }

/* Home page responsive */
@media (max-width: 768px) {
  .course-hero { height: clamp(280px, 45vh, 400px); }
  .course-hero-title { font-size: clamp(1.6rem, 6vw, 2.4rem); }
  .course-hero-subtitle { font-size: 0.85rem; padding: 0 var(--space-4); }
  .course-dossier { padding: var(--space-8) var(--space-4); }
  .dossier-body p:first-child::first-letter { font-size: 2.2em; }
  .dossier-stats { gap: var(--space-4); flex-wrap: wrap; }
  .dossier-stat-divider { display: none; }
  .dossier-stat-value { font-size: 1.3rem; }
}
@media (max-width: 375px) {
  .course-hero { height: 260px; }
  .course-hero-title { font-size: 1.5rem; }
  .course-hero-kicker { font-size: 0.65rem; }
}