:root {
  --bg: #0a0c10;
  --bg-card: #12151c;
  --bg-card-hover: #181c26;
  --fg: #e8eaf0;
  --fg-muted: #8a90a0;
  --accent: #f0a830;
  --accent-dim: rgba(240, 168, 48, 0.15);
  --highlight: #38d98a;
  --border: rgba(255,255,255,0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.accent { color: var(--accent); }
.highlight { color: var(--highlight); }

/* ───── HERO ───── */
.hero {
  padding: 100px 24px 80px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 60px;
  align-items: center;
}

.hero-tag {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.lede {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 520px;
}

/* Radar Card */
.radar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.radar-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.radar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.radar-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--highlight);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(56, 217, 138, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(56, 217, 138, 0); }
}

.radar-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--fg-muted);
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.stat-row:last-child { border-bottom: none; }

.stat-label {
  font-size: 14px;
  color: var(--fg-muted);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
}

.stat-value.highlight { color: var(--highlight); }

/* ───── HOW SECTION ───── */
.how {
  padding: 100px 24px;
  border-top: 1px solid var(--border);
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.how h2, .signal h2, .closing h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-sub {
  color: var(--fg-muted);
  font-size: 18px;
  max-width: 600px;
  margin-bottom: 56px;
}

.capabilities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  transition: background 0.2s, border-color 0.2s;
}

.cap-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(240, 168, 48, 0.2);
}

.cap-number {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.cap-card h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

.cap-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.7;
}

/* ───── SIGNAL SECTION ───── */
.signal {
  padding: 100px 24px;
  border-top: 1px solid var(--border);
}

.signal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.signal-text p {
  color: var(--fg-muted);
  font-size: 17px;
  margin-bottom: 36px;
  max-width: 460px;
}

.signal-stats {
  display: flex;
  gap: 40px;
}

.mini-stat {
  display: flex;
  flex-direction: column;
}

.mini-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}

.mini-label {
  font-size: 13px;
  color: var(--fg-muted);
  margin-top: 4px;
}

.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.detail-card h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--accent);
}

.detail-card ul {
  list-style: none;
}

.detail-card li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 15px;
  padding-left: 20px;
  position: relative;
}

.detail-card li:last-child { border-bottom: none; }

.detail-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--highlight);
  transform: translateY(-50%);
}

/* ───── CLOSING ───── */
.closing {
  padding: 120px 24px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: radial-gradient(ellipse at center top, rgba(240, 168, 48, 0.05), transparent 60%);
}

.closing h2 {
  max-width: 700px;
  margin: 0 auto 24px;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 18px;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.75;
}

/* ───── FOOTER ───── */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}

.footer-note {
  font-size: 14px;
  color: var(--fg-muted);
}

/* ───── RESPONSIVE ───── */
@media (max-width: 768px) {
  .hero { padding: 60px 20px 50px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .capabilities { grid-template-columns: 1fr; }
  .signal-grid { grid-template-columns: 1fr; gap: 40px; }
  .signal-stats { gap: 24px; }
  .mini-value { font-size: 22px; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
  .how, .signal { padding: 60px 20px; }
  .closing { padding: 80px 20px; }
}