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

:root {
  --bg: #07070d;
  --bg-surface: #0c0c16;
  --text: #d8d4ca;
  --text-dim: #6b6860;
  --accent-cyan: #00e5ff;
  --accent-gold: #c9a84c;
  --accent-purple: #7c3aed;
  --font-display: 'Major Mono Display', monospace;
  --font-body: 'Cormorant Garamond', serif;
  --font-mono: 'Share Tech Mono', monospace;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-cyan) var(--bg);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 300;
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

#void-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ── NAV ── */

.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  backdrop-filter: blur(12px);
  background: rgba(7, 7, 13, 0.6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.logo-mark {
  color: var(--accent-gold);
  font-size: 0.8rem;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.3; box-shadow: 0 0 4px var(--accent-cyan); }
  50% { opacity: 1; box-shadow: 0 0 12px var(--accent-cyan); }
}

/* ── HERO ── */

.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.hero-inner {
  max-width: 800px;
}

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fade-up 1s ease 0.3s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 14vw, 12rem);
  line-height: 0.85;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fade-up 1.2s ease 0.6s forwards;
}

.title-line {
  display: block;
  color: var(--text);
}

.title-line.accent {
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-cyan) 50%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 40px rgba(0, 229, 255, 0.15));
}

.hero-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 3.5rem;
  opacity: 0;
  animation: fade-up 1s ease 1s forwards;
}

.hero-philosophy {
  max-width: 520px;
  margin: 0 auto 4rem;
  opacity: 0;
  animation: fade-up 1s ease 1.3s forwards;
}

.hero-philosophy p {
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 300;
  line-height: 1.9;
  color: var(--text-dim);
}

.scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  animation: fade-up 1s ease 1.8s forwards;
}

.scroll-glyph {
  font-size: 1.2rem;
  color: var(--accent-gold);
  animation: float 3s ease-in-out infinite;
}

.scroll-text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-dim);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── DIVIDERS ── */

.divider-section {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 4rem 2rem;
}

.divider-line {
  height: 1px;
  width: 80px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
}

.divider-glyph {
  font-size: 1.8rem;
  color: var(--accent-gold);
  opacity: 0.6;
}

/* ── INTRO ── */

.intro-section {
  position: relative;
  z-index: 1;
  padding: 4rem 2rem 8rem;
}

.intro-text {
  font-size: 1.4rem;
  line-height: 2;
  text-align: center;
  margin-bottom: 2rem;
}

.intro-text em {
  color: var(--accent-cyan);
  font-style: italic;
}

.intro-text.dim {
  color: var(--text-dim);
  font-size: 1.2rem;
}

/* ── CHAPTERS ── */

.chapter {
  position: relative;
  z-index: 1;
  padding: 6rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.chapter:nth-child(even) {
  background: rgba(255, 255, 255, 0.008);
}

.chapter-container {
  max-width: 680px;
  margin: 0 auto;
}

.chapter-container.narrow {
  max-width: 560px;
}

.chapter-header {
  margin-bottom: 3rem;
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
}

.chapter-num {
  font-size: 2.5rem;
  color: var(--accent-gold);
  opacity: 0.4;
  line-height: 1;
  flex-shrink: 0;
}

.chapter-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--text);
  line-height: 1.4;
}

.chapter-body p {
  margin-bottom: 1.5rem;
  font-size: 1.15rem;
  line-height: 2;
  color: var(--text);
  opacity: 0.85;
}

.chapter-body p.highlight {
  color: var(--accent-cyan);
  font-size: 1.25rem;
  font-style: italic;
  padding: 1.5rem 0 1.5rem 1.5rem;
  border-left: 2px solid var(--accent-gold);
  opacity: 1;
  margin: 2rem 0;
}

/* ── CTA ── */

.cta-section {
  position: relative;
  z-index: 1;
  padding: 8rem 2rem 6rem;
  text-align: center;
}

.cta-mantra {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 2rem);
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 3rem;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-links {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
}

.cta-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  text-decoration: none;
  padding: 0.8rem 2rem;
  border: 1px solid rgba(0, 229, 255, 0.25);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.cta-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 229, 255, 0.05);
  transform: translateX(-100%);
  transition: transform 0.4s ease;
}

.cta-link:hover::before {
  transform: translateX(0);
}

.cta-link:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.1);
}

.cta-link .arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.cta-link:hover .arrow {
  transform: translateX(4px);
}

.cta-closing {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--text-dim);
  opacity: 0.5;
}

/* ── FOOTER ── */

footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 3rem 2rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--text-dim);
  opacity: 0.3;
  border-top: 1px solid rgba(255, 255, 255, 0.02);
}

/* ── REVEAL ANIMATION ── */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

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

/* ── RESPONSIVE ── */

@media (max-width: 640px) {
  .top-bar {
    padding: 1rem 1.5rem;
  }

  .hero-title {
    font-size: clamp(3rem, 18vw, 8rem);
  }

  .chapter {
    padding: 4rem 1.5rem;
  }

  .chapter-header {
    flex-direction: column;
    gap: 0.75rem;
  }

  .chapter-num {
    font-size: 1.8rem;
  }

  .chapter-body p.highlight {
    padding-left: 1rem;
  }

  .cta-links {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .cta-link {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }
}

/* ── GRAIN OVERLAY ── */

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 128px 128px;
}