:root {
  --bg: #0B1628;
  --surface: #111D35;
  --surface2: #162040;
  --amber: #F59E0B;
  --amber-dim: #D97706;
  --text: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --border: rgba(245,158,11,0.15);
}

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

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

/* NAV */
.nav {
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.nav-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--amber);
  color: var(--bg);
  padding: 3px 8px;
  border-radius: 2px;
}

/* HERO */
.hero {
  padding: 80px 40px 60px;
  max-width: 860px;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.eyebrow-dot {
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--amber);
}
.hero-headline {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(48px, 7vw, 80px);
  line-height: 1.0;
  color: var(--text);
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 56px;
  font-weight: 300;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-value {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  color: var(--amber);
}
.stat-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  margin: 0 40px;
}

/* SIGNAL FEED */
.signal {
  background: var(--surface);
  margin: 0 40px 60px;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.signal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}
.signal-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.signal-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  color: #22C55E;
  font-weight: 500;
}
.pulse {
  width: 7px;
  height: 7px;
  background: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 6px #22C55E;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.signal-row {
  display: grid;
  grid-template-columns: 80px 64px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 13px;
}
.signal-row:last-child { border-bottom: none; }
.signal-time {
  color: var(--text-dim);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}
.signal-asset {
  font-weight: 600;
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.signal-event {
  color: var(--text-muted);
}
.signal-action {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--bg);
  background: var(--amber);
  padding: 3px 8px;
  border-radius: 2px;
  white-space: nowrap;
}

/* FEATURES */
.features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.features-col {
  padding: 60px 40px;
}
.features-col:first-child {
  border-right: 1px solid var(--border);
}
.feature { margin-bottom: 40px; }
.feature:last-child { margin-bottom: 0; }
.feature-icon {
  margin-bottom: 14px;
}
.feature h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 20px;
  color: var(--text);
  margin-bottom: 8px;
}
.feature p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
}

/* HOW */
.how {
  padding: 80px 40px;
  max-width: 860px;
}
.how-headline {
  font-family: 'DM Serif Display', serif;
  font-size: 42px;
  color: var(--text);
  margin-bottom: 48px;
  letter-spacing: -0.02em;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.step-num {
  display: block;
  font-family: 'DM Serif Display', serif;
  font-size: 48px;
  color: var(--border);
  margin-bottom: 16px;
}
.step h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
}

/* CLOSING */
.closing {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 80px 40px;
  text-align: center;
}
.closing-headline {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(32px, 4vw, 52px);
  color: var(--text);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.closing-body {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 16px;
  line-height: 1.7;
  font-weight: 300;
}

/* FOOTER */
.footer {
  padding: 32px 40px;
  border-top: 1px solid var(--border);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.footer-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 16px;
  color: var(--text-muted);
}
.footer-tagline {
  font-size: 13px;
  color: var(--text-dim);
}
.footer-bottom span {
  font-size: 11px;
  color: var(--text-dim);
}

/* MOBILE */
@media (max-width: 768px) {
  .hero { padding: 60px 24px 40px; }
  .hero-headline { font-size: 40px; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .stat-divider { display: none; }
  .signal { margin: 0 24px 40px; }
  .signal-row { grid-template-columns: 64px 1fr; gap: 8px; }
  .signal-time, .signal-action { display: none; }
  .features { grid-template-columns: 1fr; }
  .features-col { padding: 40px 24px; }
  .features-col:first-child { border-right: none; border-bottom: 1px solid var(--border); }
  .how { padding: 60px 24px; }
  .how-steps { grid-template-columns: 1fr; gap: 32px; }
  .closing { padding: 60px 24px; }
  .nav { padding: 16px 24px; }
  .footer-top { flex-direction: column; gap: 8px; text-align: center; }
}