:root {
  --bg: #0D1B2A;
  --bg-2: #0A1520;
  --fg: #E8EDF2;
  --fg-muted: #8A9BAD;
  --accent: #F59E0B;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --border: rgba(255,255,255,0.06);
  --card-bg: rgba(255,255,255,0.025);
}

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

html { scroll-behavior: smooth; }

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

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: var(--fg-muted); border-radius: 3px; }

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 27, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Instrument Serif', serif;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.nav-tag {
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  padding: 100px 32px 80px;
  max-width: 1100px;
  margin: 0 auto;
}
.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-left {
  display: flex;
  justify-content: center;
}
.hero-right {}

/* Radar */
.radar-wrap {
  width: 280px;
  height: 280px;
  position: relative;
}
.radar {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.radar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(245, 158, 11, 0.2);
}
.ring-1 { width: 80px; height: 80px; }
.ring-2 { width: 160px; height: 160px; border-color: rgba(245, 158, 11, 0.15); }
.ring-3 { width: 240px; height: 240px; border-color: rgba(245, 158, 11, 0.08); }
.radar-core {
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.6);
}
.radar-sweep {
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, rgba(245,158,11,0.08) 30deg, transparent 60deg);
  animation: sweep 4s linear infinite;
}
@keyframes sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.signal-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.8);
  animation: pulse 2s ease-in-out infinite;
}
.dot-1 { top: 20%; right: 10%; animation-delay: 0s; }
.dot-2 { bottom: 30%; left: 8%; animation-delay: 0.7s; }
.dot-3 { top: 55%; right: 20%; animation-delay: 1.4s; }
@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}

.hero-title {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(42px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 20px;
}
.hero-lede {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 460px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.meta-pill {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: var(--fg-muted);
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 7px 14px;
  border-radius: 100px;
}
.pill-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* PROOF STRIP */
.proof {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
}
.proof-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
}
.proof-stat {
  text-align: center;
}
.stat-num {
  font-family: 'Instrument Serif', serif;
  font-size: 48px;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.4;
  max-width: 140px;
}
.proof-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* FEATURES */
.features {
  padding: 100px 32px;
  max-width: 1100px;
  margin: 0 auto;
}
.features-header {
  margin-bottom: 60px;
}
.section-eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(32px, 3.5vw, 48px);
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--fg);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: border-color 0.2s;
}
.feature-card:hover { border-color: rgba(245, 158, 11, 0.2); }
.feature-icon { margin-bottom: 20px; }
.feature-title {
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  color: var(--fg);
}
.feature-desc {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* SIGNAL SECTION */
.signal-section {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.signal-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 100px 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.signal-title {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(32px, 3.5vw, 48px);
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--fg);
  margin-bottom: 20px;
}
.signal-body {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}
.signal-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.signal-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.5;
}
.signal-icon { flex-shrink: 0; margin-top: 2px; }

/* Signal timeline */
.signal-timeline {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.timeline-row {
  display: grid;
  grid-template-columns: 56px 1fr 140px;
  align-items: center;
  gap: 16px;
}
.tl-time {
  font-size: 12px;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
}
.tl-bar {
  height: 6px;
  border-radius: 3px;
}
.bar-green { background: #22c55e; }
.bar-amber { background: var(--accent); }
.bar-gold { background: linear-gradient(90deg, var(--accent), #f97316); }
.tl-label {
  font-size: 13px;
  color: var(--fg);
}

/* HOW IT WORKS */
.how {
  padding: 100px 32px;
  max-width: 1100px;
  margin: 0 auto;
}
.how-header { margin-bottom: 60px; }
.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.step:last-child { border-bottom: none; }
.step-num {
  font-family: 'Instrument Serif', serif;
  font-size: 40px;
  color: rgba(245, 158, 11, 0.3);
  letter-spacing: -0.04em;
  line-height: 1;
  padding-top: 4px;
}
.step-title {
  font-family: 'Instrument Serif', serif;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 8px;
}
.step-desc {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* CLOSING */
.closing {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 100px 32px;
  text-align: center;
}
.closing-inner { max-width: 700px; margin: 0 auto; }
.closing-eyebrow {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}
.closing-title {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(40px, 5vw, 64px);
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--fg);
  margin-bottom: 24px;
}
.closing-body {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 32px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Instrument Serif', serif;
  font-size: 18px;
  color: var(--fg);
  margin-bottom: 4px;
}
.footer-copy { font-size: 14px; color: var(--fg-muted); }
.footer-sub { font-size: 12px; color: var(--fg-muted); opacity: 0.5; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero-split { grid-template-columns: 1fr; gap: 48px; }
  .hero-left { order: -1; }
  .radar-wrap { width: 200px; height: 200px; }
  .ring-1 { width: 60px; height: 60px; }
  .ring-2 { width: 120px; height: 120px; }
  .ring-3 { width: 180px; height: 180px; }
  .radar-sweep { width: 180px; height: 180px; }
  .proof-inner { flex-direction: column; gap: 32px; }
  .proof-divider { width: 48px; height: 1px; }
  .features-grid { grid-template-columns: 1fr; }
  .signal-inner { grid-template-columns: 1fr; gap: 48px; }
  .timeline-row { grid-template-columns: 48px 1fr; }
  .tl-label { display: none; }
  .step { grid-template-columns: 48px 1fr; gap: 20px; }
  .step-num { font-size: 32px; }
  .hero, .features, .how { padding: 64px 24px; }
  .signal-section, .closing { padding: 64px 24px; }
  .proof-inner { padding: 40px 24px; }
  .nav-inner { padding: 14px 24px; }
}