:root {
  --bg: #0C1220;
  --surface: #111827;
  --surface-2: #1C2333;
  --fg: #F8F4EE;
  --fg-muted: #8B9CB8;
  --fg-dim: #4A5B78;
  --accent: #F59E0B;
  --accent-dim: #B45309;
  --signal-high: #EF4444;
  --signal-med: #F59E0B;
  --signal-low: #4A5B78;
  --border: rgba(139,156,184,0.12);
}

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

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

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

/* Navigation */
.nav {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Hero */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 2rem 4rem;
}
.hero-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1.5rem;
}
.hero-headline {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.hero-headline em {
  font-style: italic;
  color: var(--accent);
}
.hero-lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 540px;
  margin-bottom: 3rem;
  font-weight: 300;
  line-height: 1.7;
}
.hero-scroll {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 680px;
}

/* Signal list */
.signal-list { padding: 0.5rem 0; }
.signal-item {
  display: grid;
  grid-template-columns: 12px 80px 1fr;
  align-items: start;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}
.signal-item:last-child { border-bottom: none; }
.signal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fg-dim);
  margin-top: 0.4rem;
  flex-shrink: 0;
}
.signal-dot--active { background: var(--accent); }
.signal-time { color: var(--fg-muted); font-size: 0.75rem; padding-top: 0.1rem; }
.signal-text { color: var(--fg); line-height: 1.5; }

/* How section */
.how {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 2rem;
}
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 3rem;
  color: var(--fg);
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}
.steps {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}
.step-num {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.4;
  margin-bottom: 1rem;
}
.step-head {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg);
}
.step-body { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.7; font-weight: 300; }

/* Demo / Briefing */
.demo {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 2rem;
}
.demo-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}
.demo-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
}
.demo-time { font-size: 0.8rem; color: var(--fg-dim); }
.briefing { display: flex; flex-direction: column; gap: 1.5rem; }
.brief-signal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem 2rem;
}
.brief-label {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.brief-label--high { background: rgba(239,68,68,0.15); color: var(--signal-high); }
.brief-label--med { background: rgba(245,158,11,0.15); color: var(--signal-med); }
.brief-label--low { background: rgba(74,91,120,0.2); color: var(--fg-dim); }
.brief-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--fg); line-height: 1.4; }
.brief-desc { font-size: 0.875rem; color: var(--fg-muted); line-height: 1.7; font-weight: 300; margin-bottom: 1rem; }
.brief-sources { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.source-chip {
  font-size: 0.7rem;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
}

/* Pricing */
.pricing {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 2rem;
  text-align: center;
}
.pricing-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  text-align: left;
}
.pricing-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  position: relative;
}
.pricing-card--featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 8px 32px rgba(245,158,11,0.1);
}
.plan-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--bg);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
}
.plan-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.plan-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.plan-price span { font-size: 1rem; font-weight: 400; color: var(--fg-muted); }
.plan-features { list-style: none; }
.plan-features li {
  font-size: 0.85rem;
  color: var(--fg-muted);
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}
.plan-features li:last-child { border-bottom: none; }

/* Closing */
.closing {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 2rem;
  text-align: center;
}
.closing-head {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.closing-body {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
  font-weight: 300;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-logo {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 1rem;
}
.footer-copy { font-size: 0.8rem; color: var(--fg-dim); }

/* Responsive */
@media (max-width: 768px) {
  .hero { padding: 3rem 1.5rem 2.5rem; }
  .hero-headline { font-size: 2.5rem; }
  .steps { grid-template-columns: 1fr; gap: 2rem; }
  .pricing-grid { grid-template-columns: 1fr; }
  .demo { padding: 3rem 1.5rem; }
  .demo-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .closing { padding: 4rem 1.5rem; }
  .nav-tagline { display: none; }
  .footer-inner { flex-direction: column; gap: 0.5rem; text-align: center; }
}