/* ═══════════════════════════════════════════════════════════════
   梦的密卷 · Nocturnal Consciousness Aesthetic
   Core Stylesheet
═══════════════════════════════════════════════════════════════ */

/* ── Variables ── */
:root {
  --midnight: #060810;
  --abyss: #0A0E1A;
  --deep-navy: #0D1225;
  --ink: #111827;
  --moon-gold: #C9A84C;
  --pale-gold: #E8D5A0;
  --dream-purple: #6B5FBF;
  --astral-violet: #9B89E0;
  --nebula-blue: #3A5FC2;
  --mist: rgba(200, 210, 240, 0.55);
  --ghost: rgba(200, 210, 240, 0.25);
  --text-primary: #E2E8F8;
  --text-secondary: #9CAAC8;
  --text-muted: #5A6A88;
  --border: rgba(100, 120, 180, 0.18);
  --glow-gold: rgba(201, 168, 76, 0.35);
  --glow-purple: rgba(107, 95, 191, 0.4);
  --transition: cubic-bezier(0.4, 0, 0.2, 1);
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', Georgia, serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--midnight);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.8;
  overflow-x: hidden;
}

::selection { background: rgba(107, 95, 191, 0.5); color: #fff; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--midnight); }
::-webkit-scrollbar-thumb { background: var(--dream-purple); border-radius: 2px; }

/* ── Canvas Background ── */
#star-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Page Overlay Gradient ── */
.page-gradient {
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(107,95,191,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(58,95,194,0.08) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
}

/* ── Navigation ── */
#main-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.2rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(to bottom, rgba(6,8,16,0.92) 0%, transparent 100%);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--transition), background 0.4s;
}

#main-nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(6, 8, 16, 0.95);
}

.nav-brand {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.nav-brand .title-cn {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--pale-gold);
  letter-spacing: 0.12em;
  line-height: 1;
}

.nav-brand .subtitle-cn {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  position: relative;
  transition: color 0.3s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--moon-gold);
  transition: width 0.3s var(--transition);
}

.nav-links a:hover { color: var(--pale-gold); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  width: 24px; height: 1.5px;
  background: var(--text-secondary);
  transition: 0.3s;
}

/* ── Section Base ── */
section {
  position: relative;
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
═══════════════════════════════════════════════════════════════ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.hero-inner {
  max-width: 900px;
  width: 100%;
}

.hero-emblem {
  margin-bottom: 2.5rem;
  position: relative;
  display: inline-block;
}

.emblem-ring {
  width: 100px; height: 100px;
  border-radius: 50%;
  border: 1px solid rgba(201, 168, 76, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  position: relative;
  animation: ringPulse 4s ease-in-out infinite;
}

.emblem-ring::before {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1px solid rgba(107, 95, 191, 0.2);
  animation: ringPulse 4s ease-in-out infinite 0.5s;
}

.emblem-ring::after {
  content: '';
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  border: 1px solid rgba(107, 95, 191, 0.1);
  animation: ringPulse 4s ease-in-out infinite 1s;
}

.emblem-glyph {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--moon-gold);
  line-height: 1;
}

@keyframes ringPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

.hero-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  color: var(--moon-gold);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 0.3s forwards;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 9vw, 6.5rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 0.5s forwards;
}

.hero-title .gold { color: var(--moon-gold); }

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: var(--astral-violet);
  letter-spacing: 0.25em;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 0.7s forwards;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(0.9rem, 2.2vw, 1.15rem);
  color: var(--text-secondary);
  line-height: 2;
  max-width: 620px;
  margin: 0 auto 3rem;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 0.9s forwards;
}

.hero-tagline em {
  font-style: normal;
  color: var(--pale-gold);
}

.hero-cta {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 1s var(--transition) 1.1s forwards;
}

.btn-primary {
  padding: 0.85rem 2.2rem;
  background: linear-gradient(135deg, var(--dream-purple), var(--nebula-blue));
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  border-radius: 2px;
  border: 1px solid rgba(155, 137, 224, 0.4);
  transition: all 0.35s var(--transition);
  box-shadow: 0 0 24px rgba(107, 95, 191, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(107, 95, 191, 0.6);
}

.btn-secondary {
  padding: 0.85rem 2.2rem;
  background: transparent;
  color: var(--pale-gold);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  border-radius: 2px;
  border: 1px solid rgba(201, 168, 76, 0.3);
  transition: all 0.35s var(--transition);
}

.btn-secondary:hover {
  background: rgba(201, 168, 76, 0.08);
  border-color: rgba(201, 168, 76, 0.6);
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeIn 1s ease 2s forwards;
}

.scroll-indicator span {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--moon-gold), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.1% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ═══════════════════════════════════════════════════════════════
   MANIFESTO / OPENING QUOTE
═══════════════════════════════════════════════════════════════ */
#manifesto {
  padding: 8rem 2rem;
  text-align: center;
}

.manifesto-inner {
  max-width: 780px;
  margin: 0 auto;
}

.section-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.ornament-line {
  width: 60px; height: 1px;
  background: linear-gradient(to right, transparent, var(--moon-gold));
}

.ornament-line.right {
  background: linear-gradient(to left, transparent, var(--moon-gold));
}

.ornament-diamond {
  width: 6px; height: 6px;
  background: var(--moon-gold);
  transform: rotate(45deg);
}

.section-label {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  color: var(--moon-gold);
  text-transform: uppercase;
  margin-bottom: 3rem;
}

.manifesto-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3.5vw, 2rem);
  color: var(--text-primary);
  line-height: 1.9;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.manifesto-quote strong {
  color: var(--pale-gold);
  font-weight: 600;
}

.manifesto-sub {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 1rem;
}

.manifesto-author {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--moon-gold);
  letter-spacing: 0.2em;
}

/* ═══════════════════════════════════════════════════════════════
   THREE MISSIONS SECTION
═══════════════════════════════════════════════════════════════ */
#missions {
  padding: 8rem 2rem;
  background: linear-gradient(to bottom, transparent, rgba(13,18,37,0.8), transparent);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 5rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: #fff;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.9;
}

.missions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.mission-card {
  position: relative;
  padding: 3rem 2rem 2.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(13, 18, 37, 0.6);
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition: all 0.4s var(--transition);
  overflow: hidden;
  group: true;
}

.mission-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, rgba(107,95,191,0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
}

.mission-card:hover { 
  border-color: rgba(107, 95, 191, 0.4);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(107,95,191,0.12);
}

.mission-card:hover::before { opacity: 1; }

.mission-number {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--dream-purple);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: block;
}

.mission-icon {
  width: 64px; height: 64px;
  margin-bottom: 1.5rem;
  position: relative;
}

.mission-icon svg {
  width: 100%; height: 100%;
}

.mission-title-cn {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--pale-gold);
  margin-bottom: 0.4rem;
  line-height: 1.4;
  letter-spacing: 0.05em;
}

.mission-subtitle {
  font-size: 0.7rem;
  color: var(--dream-purple);
  letter-spacing: 0.2em;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}

.mission-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.85;
}

.mission-quote {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.7;
  transition: color 0.3s;
}

.mission-card:hover .mission-quote {
  color: var(--pale-gold);
}

.mission-glow {
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px; height: 80px;
  border-radius: 50%;
  filter: blur(30px);
  opacity: 0;
  transition: opacity 0.4s;
}

.mission-card:hover .mission-glow { opacity: 0.6; }
.mission-card[data-mission="1"] .mission-glow { background: var(--dream-purple); }
.mission-card[data-mission="2"] .mission-glow { background: var(--nebula-blue); }
.mission-card[data-mission="3"] .mission-glow { background: var(--moon-gold); }

/* ═══════════════════════════════════════════════════════════════
   QUOTE WALL
═══════════════════════════════════════════════════════════════ */
#quote-wall {
  padding: 8rem 2rem;
  overflow: hidden;
}

.quotes-container {
  max-width: 900px;
  margin: 0 auto;
}

.quote-block {
  position: relative;
  padding: 3.5rem 4rem;
  margin-bottom: 3rem;
  border-left: 2px solid var(--moon-gold);
  background: linear-gradient(135deg, rgba(13,18,37,0.8) 0%, rgba(6,8,16,0.6) 100%);
  transition: all 0.4s var(--transition);
  opacity: 0;
  transform: translateX(-30px);
}

.quote-block.visible {
  opacity: 1;
  transform: translateX(0);
}

.quote-block:nth-child(even) {
  border-left: none;
  border-right: 2px solid var(--astral-violet);
  transform: translateX(30px);
}

.quote-block:nth-child(even).visible {
  transform: translateX(0);
}

.quote-text {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  color: var(--text-primary);
  line-height: 2;
  margin-bottom: 1rem;
}

.quote-text em {
  font-style: normal;
  color: var(--pale-gold);
}

.quote-source {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
}

/* ═══════════════════════════════════════════════════════════════
   CHAPTERS / 密卷目录
═══════════════════════════════════════════════════════════════ */
#chapters {
  padding: 8rem 2rem;
  background: linear-gradient(to bottom, transparent, rgba(13,18,37,0.6), transparent);
}

.chapters-inner {
  max-width: 900px;
  margin: 0 auto;
}

.chapter-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.chapter-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s var(--transition);
  position: relative;
  overflow: hidden;
}

.chapter-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 0; height: 100%;
  background: linear-gradient(to right, rgba(107,95,191,0.06), transparent);
  transition: width 0.4s var(--transition);
}

.chapter-item:hover::before { width: 100%; }

.chapter-item:first-child { border-top: 1px solid var(--border); }

.chapter-num {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--dream-purple);
  font-family: var(--font-serif);
}

.chapter-content { flex: 1; }

.chapter-title-cn {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
  transition: color 0.3s;
  letter-spacing: 0.04em;
}

.chapter-item:hover .chapter-title-cn { color: var(--pale-gold); }

.chapter-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.chapter-arrow {
  color: var(--text-muted);
  font-size: 1rem;
  transition: all 0.3s;
  opacity: 0;
}

.chapter-item:hover .chapter-arrow {
  opacity: 1;
  color: var(--moon-gold);
  transform: translateX(4px);
}

/* ═══════════════════════════════════════════════════════════════
   READING PANEL (Modal)
═══════════════════════════════════════════════════════════════ */
#reading-panel {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--transition);
}

#reading-panel.open {
  opacity: 1;
  pointer-events: all;
}

.panel-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 8, 16, 0.85);
  backdrop-filter: blur(12px);
  cursor: pointer;
}

.panel-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 760px;
  max-height: 80vh;
  background: linear-gradient(135deg, #0D1225 0%, #0A0E1A 100%);
  border: 1px solid var(--border);
  border-radius: 8px 8px 0 0;
  padding: 3rem;
  overflow-y: auto;
  transform: translateY(60px);
  transition: transform 0.4s var(--transition);
}

#reading-panel.open .panel-content {
  transform: translateY(0);
}

.panel-close {
  position: absolute;
  top: 1.5rem; right: 1.5rem;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.3s;
}

.panel-close:hover {
  border-color: var(--moon-gold);
  color: var(--moon-gold);
}

#panel-chapter-num {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--moon-gold);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

#panel-title {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  color: #fff;
  margin-bottom: 2rem;
  line-height: 1.4;
}

#panel-body {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 2;
}

#panel-body p { margin-bottom: 1.2rem; }
#panel-body strong { color: var(--pale-gold); font-weight: 600; }
#panel-body blockquote {
  border-left: 2px solid var(--moon-gold);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-style: italic;
}

/* ═══════════════════════════════════════════════════════════════
   CONCEPT SECTION
═══════════════════════════════════════════════════════════════ */
#concepts {
  padding: 8rem 2rem;
}

.concepts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.concept-card {
  padding: 2.5rem;
  border: 1px solid var(--border);
  background: rgba(13, 18, 37, 0.5);
  border-radius: 4px;
  transition: all 0.4s var(--transition);
  position: relative;
  overflow: hidden;
}

.concept-card::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  background: radial-gradient(circle at top right, rgba(107,95,191,0.15), transparent);
}

.concept-card:hover {
  border-color: rgba(155, 137, 224, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

.concept-tag {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  background: rgba(107, 95, 191, 0.15);
  border: 1px solid rgba(107, 95, 191, 0.3);
  border-radius: 2px;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--astral-violet);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.concept-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--pale-gold);
  margin-bottom: 1rem;
  letter-spacing: 0.06em;
}

.concept-body {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.9;
}

/* ═══════════════════════════════════════════════════════════════
   PARALLAX INTERLUDE
═══════════════════════════════════════════════════════════════ */
.parallax-interlude {
  padding: 10rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.parallax-interlude .interlude-text {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.8rem);
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.parallax-interlude .interlude-text em {
  font-style: normal;
  color: var(--moon-gold);
}

.parallax-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.orb-1 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(107,95,191,0.15), transparent);
  top: 50%; left: 20%;
  transform: translate(-50%, -50%);
}

.orb-2 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(58,95,194,0.12), transparent);
  top: 50%; right: 10%;
  transform: translateY(-50%);
}

/* ═══════════════════════════════════════════════════════════════
   AUTHOR NOTE
═══════════════════════════════════════════════════════════════ */
#author-note {
  padding: 8rem 2rem;
  background: linear-gradient(to bottom, transparent, rgba(10,14,26,0.9), transparent);
}

.author-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.author-seal {
  width: 72px; height: 72px;
  margin: 0 auto 2rem;
  border-radius: 50%;
  border: 1px solid rgba(201,168,76,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--moon-gold);
  background: rgba(201,168,76,0.05);
}

.author-heading {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--pale-gold);
  margin-bottom: 2rem;
  letter-spacing: 0.08em;
}

.author-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 2.1;
  margin-bottom: 1.2rem;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════════════ */
footer {
  padding: 4rem 2rem 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--moon-gold);
  letter-spacing: 0.2em;
  margin-bottom: 0.5rem;
}

.footer-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  margin-bottom: 2rem;
}

.footer-divider {
  width: 60px; height: 1px;
  background: var(--border);
  margin: 2rem auto;
}

.footer-copy {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

/* ═══════════════════════════════════════════════════════════════
   ANIMATIONS
═══════════════════════════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .missions-grid { grid-template-columns: 1fr; gap: 1.2rem; }
  .concepts-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(6,8,16,0.98);
    padding: 1.5rem 2.5rem;
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
  }
  .nav-toggle { display: flex; }

  .chapter-item {
    grid-template-columns: 60px 1fr;
    gap: 1rem;
  }
  .chapter-arrow { display: none; }

  .quote-block { padding: 2rem; }

  .panel-content { padding: 2rem; border-radius: 12px 12px 0 0; }

  #hero { padding: 7rem 1.5rem 4rem; }
}

@media (max-width: 480px) {
  .missions-grid { gap: 1rem; }
  .mission-card { padding: 2rem 1.5rem 1.8rem; }
  .hero-cta { flex-direction: column; align-items: center; }
  .btn-primary, .btn-secondary { width: 100%; text-align: center; }
}