:root {
  --bg: #0a0c10;
  --bg-secondary: #12151c;
  --bg-card: #161a24;
  --fg: #e8eaf0;
  --fg-muted: #8a8f9d;
  --accent: #3b82f6;
  --accent-warm: #f59e0b;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --border: rgba(255, 255, 255, 0.06);
  --radius: 16px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

/* Hero */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 40px;
}

.badge-os {
  color: var(--accent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  max-width: 140px;
  text-align: center;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-gradient {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, rgba(245, 158, 11, 0.04) 40%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* Section shared */
.section-tag {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--accent);
  margin-bottom: 16px;
}

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

/* Features */
.features {
  padding: 100px 24px;
  background: var(--bg-secondary);
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.features h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 56px;
  letter-spacing: -0.01em;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(59, 130, 246, 0.2);
}

.feature-card-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(59, 130, 246, 0.05) 100%);
}

.feature-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Metrics */
.metrics {
  padding: 100px 24px;
}

.metrics-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.metrics h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 56px;
  letter-spacing: -0.01em;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.metric-block {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.metric-top {
  margin-bottom: 16px;
}

.metric-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-warm);
}

.metric-value {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Closing */
.closing {
  padding: 120px 24px;
  text-align: center;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing-mark {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 32px;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.closing-sub {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 520px;
  margin: 0 auto;
}

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

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--fg-muted);
}

.footer-os {
  color: var(--accent);
}

.footer-note {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* Mobile */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 100px 20px 60px;
  }

  .hero-stats {
    gap: 20px;
  }

  .stat-divider {
    display: none;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .feature-card-large {
    grid-column: 1;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-lede {
    font-size: 1rem;
  }

  .feature-card {
    padding: 24px;
  }

  .metric-block {
    padding: 24px;
  }
}