:root {
  --bg: #0a0a0f;
  --surface: #111118;
  --surface-2: #16161f;
  --border: #1e1e2a;
  --indigo: #6366f1;
  --indigo-dim: rgba(99, 102, 241, 0.12);
  --violet: #8b5cf6;
  --amber: #f59e0b;
  --text: #e8e8f0;
  --text-dim: #6b6b82;
  --text-muted: #3a3a50;
  --mono: 'DM Mono', 'Courier New', monospace;
  --sans: 'DM Sans', system-ui, sans-serif;
  --display: 'Syne', system-ui, sans-serif;
}

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

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 48px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%, rgba(99,102,241,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 80% 30%, rgba(139,92,246,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-left { display: flex; flex-direction: column; gap: 24px; }
.hero-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--indigo);
  text-transform: uppercase;
}
.hero-title {
  font-family: var(--display);
  font-size: clamp(48px, 5vw, 80px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--text);
}
.hero-sub {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-dim);
  max-width: 480px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 12px;
  width: fit-content;
}
.hero-right { display: flex; justify-content: center; }
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--indigo);
  color: #fff;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  transition: background 0.2s;
  width: fit-content;
}
.hero-cta:hover { background: #5558e8; }

.oscillation-display {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.wave-container {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
}
.wave-svg { display: block; width: 100%; height: 120px; }
.axis-label {
  position: absolute;
  bottom: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}
.left-label { left: 10px; }
.right-label { right: 10px; }
.coherence-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.coherence-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  white-space: nowrap;
  min-width: 90px;
}
.coherence-track {
  flex: 1;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.coherence-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--indigo), var(--amber));
  border-radius: 2px;
  transition: width 2s ease;
}
.coherence-pct {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--amber);
  min-width: 40px;
  text-align: right;
}
.focus-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.focus-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
.focus-level {
  font-family: var(--display);
  font-size: 28px;
  font-weight: 700;
  color: var(--indigo);
  letter-spacing: -0.01em;
}

/* ===== PROVENANCE ===== */
.provenance {
  padding: 120px 48px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
}
.provenance-inner { max-width: 800px; margin: 0 auto; }
.provenance-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.provenance-headline {
  font-family: var(--display);
  font-size: clamp(22px, 2.5vw, 34px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
  font-style: italic;
  margin-bottom: 20px;
}
.provenance-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.provenance-sep { color: var(--text-muted); }
.provenance-body {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-dim);
  margin-bottom: 32px;
}
.provenance-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--indigo);
  text-decoration: none;
  border: 1px solid var(--indigo-dim);
  padding: 10px 16px;
  border-radius: 4px;
  transition: background 0.2s, border-color 0.2s;
}
.provenance-link:hover { background: var(--indigo-dim); border-color: var(--indigo); }

/* ===== SEQUENCE ===== */
.sequence { padding: 120px 48px; background: var(--surface); }
.sequence-inner { max-width: 1000px; margin: 0 auto; }
.sequence-header { margin-bottom: 64px; }
.section-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--indigo);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--display);
  font-size: clamp(28px, 3vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 12px;
}
.section-sub { font-size: 16px; color: var(--text-dim); max-width: 500px; }
.sequence-grid { display: flex; flex-direction: column; gap: 0; }
.seq-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.seq-item::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.seq-num {
  font-family: var(--display);
  font-size: 40px;
  font-weight: 800;
  color: var(--text-muted);
  line-height: 1;
  padding-left: 24px;
}
.seq-name {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.seq-desc { font-size: 15px; line-height: 1.65; color: var(--text-dim); }

/* ===== MECHANICS ===== */
.mechanics { padding: 120px 48px; background: var(--bg); }
.mechanics-inner { max-width: 1100px; margin: 0 auto; }
.mech-header { margin-bottom: 56px; }
.mech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.mech-card {
  background: var(--surface);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.mech-icon { display: flex; }
.mech-name {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}
.mech-desc { font-size: 14px; line-height: 1.7; color: var(--text-dim); }

/* ===== PROTOCOL ===== */
.protocol {
  padding: 120px 48px;
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.protocol-inner { max-width: 800px; margin: 0 auto; text-align: center; }
.protocol-badge {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.protocol-title {
  font-family: var(--display);
  font-size: clamp(30px, 3.5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 28px;
}
.protocol-body {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-dim);
  margin-bottom: 56px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.protocol-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}
.stat-item { text-align: center; padding: 0 48px; }
.stat-val {
  font-family: var(--display);
  font-size: 56px;
  font-weight: 800;
  color: var(--indigo);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 8px;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
}

/* ===== CLOSING ===== */
.closing { padding: 120px 48px; background: var(--bg); }
.closing-inner { max-width: 800px; margin: 0 auto; text-align: center; }
.closing-visual { margin-bottom: 56px; }
.closing-svg { width: 100%; height: auto; }
.closing-headline {
  font-family: var(--display);
  font-size: clamp(24px, 2.5vw, 40px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 20px;
}
.closing-sub { font-size: 16px; color: var(--text-dim); line-height: 1.65; margin-bottom: 32px; }
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--indigo);
  color: #fff;
  text-decoration: none;
  padding: 14px 32px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  transition: background 0.2s;
}
.cta-btn:hover { background: #5558e8; }

/* ===== FOOTER ===== */
.footer {
  padding: 40px 48px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-brand { display: flex; flex-direction: column; gap: 4px; }
.footer-name {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
}
.footer-tagline {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
}
.footer-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.footer-sep { color: var(--text-muted); }

/* ===== ANIMATIONS ===== */
@keyframes coherenceAnim {
  0% { width: 0%; }
  100% { width: 100%; }
}
@keyframes pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}
@keyframes ringPulse {
  0% { r: 30; opacity: 0.3; }
  100% { r: 150; opacity: 0; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding: 60px 24px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-title { font-size: 40px; }
  .provenance, .sequence, .mechanics, .protocol, .closing { padding: 80px 24px; }
  .seq-item { grid-template-columns: 60px 1fr; gap: 20px; }
  .seq-num { font-size: 28px; }
  .mech-grid { grid-template-columns: 1fr; }
  .protocol-stats { flex-direction: column; gap: 24px; }
  .stat-divider { width: 40px; height: 1px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}