:root {
  --bg: #070a0d;
  --bg-surface: #0d1117;
  --bg-card: #111822;
  --fg: #e2e8f0;
  --fg-muted: #8892a4;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --amber: #f59e0b;
  --red: #ef4444;
  --green: #22c55e;
  --border: rgba(255,255,255,0.07);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(7,10,13,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 40px;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--accent);
}
.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--green);
}
.status-dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--green);
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 40px 80px;
}
.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: 'IBM Plex Mono', monospace;
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}
.hero-lede {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 32px;
}
.hero-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.meta-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 5px 10px;
  border: 1px solid var(--accent-dim);
  color: var(--accent);
  background: var(--accent-dim);
  letter-spacing: 0.05em;
}

/* RUNTIME DISPLAY */
.runtime-display {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  font-family: 'IBM Plex Mono', monospace;
}
.display-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  color: var(--fg-muted);
}
.live-indicator {
  background: var(--green);
  color: #000;
  font-size: 9px;
  font-weight: 600;
  padding: 2px 6px;
  letter-spacing: 0.1em;
}
.display-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.node-row {
  display: flex;
  gap: 10px;
}
.node {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 12px 14px;
  flex: 1;
}
.node-flight { border-color: rgba(0,212,255,0.3); }
.node-hotel { border-color: rgba(168,85,247,0.3); }
.node-transfer { border-color: rgba(34,197,94,0.3); }
.node-tour { border-color: rgba(245,158,11,0.3); }
.node-label {
  font-size: 9px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.node-val {
  font-size: 13px;
  color: var(--fg);
  font-weight: 500;
  margin-bottom: 6px;
}
.node-state {
  font-size: 9px;
  color: var(--green);
  letter-spacing: 0.05em;
}
.node-hotel .node-state { color: #a855f7; }
.node-transfer .node-state { color: #22c55e; }
.node-tour .node-state { color: var(--amber); }
.dependency-line {
  height: 1px;
  background: linear-gradient(to right, rgba(0,212,255,0.4), rgba(168,85,247,0.2), rgba(34,197,94,0.2), rgba(245,158,11,0.2));
  margin: 4px 0;
}
.disruption-event {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.3);
  padding: 12px 14px;
}
.event-bar {
  font-size: 11px;
  font-weight: 600;
  color: var(--red);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.event-propagation {
  font-size: 10px;
  color: var(--fg-muted);
  margin-bottom: 8px;
}
.event-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.event-actions span {
  font-size: 9px;
  background: rgba(34,197,94,0.15);
  color: var(--green);
  padding: 3px 8px;
  border: 1px solid rgba(34,197,94,0.25);
}

/* CAPABILITIES */
.capabilities {
  padding: 100px 40px;
  max-width: 1200px;
  margin: 0 auto;
}
.section-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-headline {
  font-family: 'IBM Plex Mono', monospace;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--fg);
  margin-bottom: 60px;
  letter-spacing: -0.02em;
}
.cap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.cap-card {
  background: var(--bg);
  padding: 40px;
}
.cap-icon {
  font-size: 28px;
  color: var(--accent);
  margin-bottom: 20px;
  font-family: monospace;
}
.cap-card h3 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.cap-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ARCHITECTURE */
.architecture {
  background: var(--bg-surface);
  padding: 100px 40px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.arch-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.arch-text h2 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 28px;
  font-weight: 600;
  color: var(--fg);
  margin: 16px 0 20px;
  letter-spacing: -0.02em;
}
.arch-text p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}
.arch-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.arch-layer {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 16px 20px;
}
.layer-label {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}
.layer-desc {
  display: block;
  font-size: 12px;
  color: var(--fg-muted);
}
.arch-arrow {
  text-align: center;
  font-size: 16px;
  color: var(--fg-muted);
  padding: 6px 0;
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
}
.arch-state {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.state-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px;
}
.state-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 12px;
}
.state-item {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--fg-muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.state-item:last-child { border-bottom: none; }

/* MARKET */
.market {
  padding: 100px 40px;
  max-width: 1200px;
  margin: 0 auto;
}
.market-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.market-header h2 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 600;
  color: var(--fg);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.market-body p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.8;
  margin-bottom: 40px;
}
.market-stat {
  border-left: 2px solid var(--accent);
  padding-left: 24px;
}
.stat-number {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 64px;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
}
.stat-label {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* MANIFESTO */
.manifesto {
  background: var(--bg-surface);
  padding: 100px 40px;
  border-top: 1px solid var(--border);
}
.manifesto-inner {
  max-width: 900px;
  margin: 0 auto;
}
.manifesto-quote {
  font-family: 'IBM Plex Mono', monospace;
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 400;
  color: var(--fg);
  line-height: 1.5;
  font-style: normal;
  margin-bottom: 32px;
  padding-left: 24px;
  border-left: 2px solid var(--accent);
}
.manifesto-body {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.8;
  padding-left: 24px;
}

/* FOOTER */
.footer {
  padding: 48px 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-brand {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.footer-tagline {
  font-size: 13px;
  color: var(--fg-muted);
}
.footer-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: rgba(255,255,255,0.2);
  margin-top: 4px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero { padding: 80px 24px 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { display: none; }
  .cap-grid { grid-template-columns: 1fr; }
  .arch-inner { grid-template-columns: 1fr; gap: 48px; }
  .market-grid { grid-template-columns: 1fr; gap: 48px; }
  .capabilities, .architecture, .market, .manifesto { padding: 64px 24px; }
  .nav { padding: 0 24px; }
  .footer { padding: 40px 24px; }
}