:root {
  --bg: #0b0f14;
  --surface: #131820;
  --surface-2: #1a2231;
  --border: #1e2a3a;
  --fg: #e2e8f0;
  --fg-muted: #8899aa;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --accent-2: #f59e0b;
  --ok: #22c55e;
  --err: #ef4444;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-body: 'Outfit', system-ui, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 18px;
  color: var(--accent);
  letter-spacing: -0.5px;
}
.nav-tagline {
  font-size: 13px;
  color: var(--fg-muted);
  font-family: var(--font-mono);
}

/* ── HERO ── */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 32px 64px;
}
.hero-eyebrow { margin-bottom: 24px; }
.eyebrow-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(0, 212, 255, 0.25);
  padding: 6px 12px;
  border-radius: 4px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 24px;
}
.hero-lede {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.65;
  margin-bottom: 32px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.meta-pill {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  padding: 5px 12px;
  border-radius: 20px;
}

/* ── TRACE SHOWCASE ── */
.trace-showcase {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px 80px;
}
.trace-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  margin-bottom: 12px;
}
.trace-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.trace-window {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.trace-window-bar {
  background: var(--surface-2);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border);
}
.trace-window-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.trace-window-dot.red { background: #ff5f57; }
.trace-window-dot.yellow { background: #febc2e; }
.trace-window-dot.green { background: #28c840; }
.trace-window-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  margin-left: 8px;
}
.trace-code {
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
}
.trace-line {
  display: grid;
  grid-template-columns: 28px 20px 1fr auto;
  gap: 0;
  align-items: baseline;
}
.trace-line.ok .line-result { color: var(--ok); }
.trace-line.summary {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--accent);
}
.line-num { color: var(--fg-muted); opacity: 0.4; user-select: none; }
.line-prefix { color: var(--fg-muted); }
.line-tool { color: var(--accent-2); }
.line-time { color: var(--fg-muted); opacity: 0.5; font-size: 11px; margin-left: 12px; }
.line-result { color: var(--fg); }
.line-comment { color: var(--fg-muted); opacity: 0.5; font-style: italic; }
.trace-stats {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--border);
}
.stat {
  flex: 1;
  padding: 16px 24px;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }
.stat-value {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--fg);
  display: block;
}
.stat-label {
  font-size: 12px;
  color: var(--fg-muted);
  margin-top: 2px;
}

/* ── FEATURES ── */
.features {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px 80px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.feature-card {
  background: var(--surface);
  padding: 32px 28px;
}
.feature-card--wide { grid-column: span 2; }
.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.65;
}
.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 16px;
}

/* ── COMPARE ── */
.compare {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px 80px;
}
.compare-header {
  margin-bottom: 32px;
}
.compare-header h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--fg);
  margin-bottom: 8px;
}
.compare-header p {
  color: var(--fg-muted);
  font-size: 15px;
}
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.compare-col {
  background: var(--surface);
  padding: 28px 28px 28px;
}
.compare-col-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 20px;
}
.compare-col-label--bad { background: rgba(239,68,68,0.12); color: #ef4444; border: 1px solid rgba(239,68,68,0.25); }
.compare-col-label--good { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(0,212,255,0.25); }
.compare-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.compare-list li {
  font-size: 14px;
  color: var(--fg-muted);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}
.compare-col--bad .compare-list li::before { content: '×'; position: absolute; left: 0; color: var(--err); font-weight: 700; }
.compare-col--good .compare-list li::before { content: '✓'; position: absolute; left: 0; color: var(--ok); font-weight: 700; }

/* ── CLOSING ── */
.closing {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px 80px;
}
.closing-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 64px 56px;
  text-align: center;
}
.closing-quote {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.3;
  color: var(--fg);
  margin-bottom: 24px;
}
.closing-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.65;
}
.closing-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}
.closing-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 6px 14px;
  border-radius: 4px;
}

/* ── FOOTER ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 32px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}
.footer-brand {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--fg-muted);
}
.footer-tag {
  font-size: 13px;
  color: var(--fg-muted);
  opacity: 0.5;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .hero { padding: 48px 20px 40px; }
  .hero-title { letter-spacing: -1px; }
  .trace-showcase { padding: 0 20px 48px; }
  .trace-code { font-size: 11px; }
  .features { padding: 0 20px 48px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card--wide { grid-column: span 1; }
  .compare { padding: 0 20px 48px; }
  .compare-grid { grid-template-columns: 1fr; }
  .closing { padding: 0 20px 48px; }
  .closing-inner { padding: 40px 28px; }
  .nav-inner { padding: 14px 20px; }
  .stat { padding: 12px 16px; }
  .stat-value { font-size: 18px; }
}