:root {
  --bg: #0e0e0e;
  --surface: #161614;
  --surface-2: #1e1e1b;
  --text: #f5f0e6;
  --text-muted: #9a958a;
  --accent: #c8922a;
  --accent-dim: #8a6319;
  --border: #2a2a26;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 40px;
  background: rgba(14, 14, 14, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { max-width: 1100px; margin: 0 auto; }
.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px 40px 80px;
  border-bottom: 1px solid var(--border);
}
.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-headline {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
}
.hero-sub {
  margin-top: 24px;
  font-size: 18px;
  color: var(--text-muted);
  max-width: 420px;
  line-height: 1.6;
}

/* Proof Tree Visual */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.proof-tree {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  position: relative;
  width: 100%;
  max-width: 320px;
}
.pt-node {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 2px;
  text-align: center;
  position: relative;
}
.pt-root { background: var(--accent); color: var(--bg); }
.pt-mid { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.pt-leaf { background: transparent; color: var(--text-muted); border: 1px solid var(--border); font-size: 9px; }
.pt-branch { display: flex; flex-direction: column; align-items: center; gap: 8px; position: relative; }
.pt-branch::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  width: 1px;
  height: 12px;
  background: var(--border);
}
.pt-sub {
  display: flex;
  gap: 12px;
  position: relative;
}
.pt-sub::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  width: 1px;
  height: 12px;
  background: var(--border);
}
.pt-sub .pt-leaf::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  width: 1px;
  height: 8px;
  background: var(--border);
}
.pt-sub .pt-leaf { position: relative; }

/* Ticker */
.hero-ticker {
  max-width: 1100px;
  margin: 60px auto 0;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  overflow: hidden;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.hero-ticker .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* MANIFESTO */
.manifesto {
  padding: 100px 40px;
  border-bottom: 1px solid var(--border);
}
.manifesto-inner {
  max-width: 760px;
  margin: 0 auto;
}
.manifesto-text {
  font-size: 20px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 40px;
}
.manifesto-text:last-child { margin-bottom: 0; }
.manifesto-highlight {
  color: var(--text);
  font-size: 22px;
  font-style: italic;
  padding-left: 32px;
  border-left: 3px solid var(--accent);
}

/* EVIDENCE */
.evidence {
  padding: 100px 40px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.evidence-header {
  max-width: 1100px;
  margin: 0 auto 64px;
}
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.evidence-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.evidence-card {
  background: var(--surface);
  padding: 40px 36px;
}
.evidence-icon {
  color: var(--accent);
  margin-bottom: 24px;
}
.evidence-card h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 12px;
}
.evidence-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* WHAT IT IS */
.whatitis {
  padding: 100px 40px;
  border-bottom: 1px solid var(--border);
}
.whatitis-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 80px;
  align-items: start;
}
.whatitis-label {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 6px;
}
.label-line {
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}
.whatitis-label span:last-child {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.whatitis-headline {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  line-height: 1.2;
}
.whatitis-body {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 680px;
}
.whatitis-body em { color: var(--text); font-style: normal; font-weight: 600; }

/* CLOSING */
.closing {
  padding: 120px 40px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.closing-inner { max-width: 860px; margin: 0 auto; }
.closing-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--text);
  text-align: center;
}

/* FOOTER */
.footer {
  padding: 40px;
  border-bottom: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
}
.footer-tagline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-content { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { display: none; }
  .hero { padding-top: 120px; }
  .evidence-grid { grid-template-columns: 1fr; }
  .whatitis-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { flex-direction: column; gap: 12px; }
  .manifesto-highlight { padding-left: 20px; }
  .nav { padding: 16px 20px; }
}