:root {
  --bg: #0a0a0c;
  --bg-elevated: #111115;
  --bg-card: #16161b;
  --fg: #e8e8ed;
  --fg-muted: #8a8a9a;
  --accent: #c8ff00;
  --accent-dim: rgba(200, 255, 0, 0.1);
  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(200, 255, 0, 0.2);
  --radius: 12px;
  --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);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── Hero ─── */
.hero {
  padding: 120px 24px 80px;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 40px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 7vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 28px;
}

.hero h1 .accent {
  color: var(--accent);
}

.lede {
  font-size: 19px;
  color: var(--fg-muted);
  max-width: 640px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.tag {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 8px 18px;
  border-radius: 100px;
  transition: border-color 0.2s;
}

.tag:hover {
  border-color: var(--border-accent);
  color: var(--fg);
}

/* ─── Stats ─── */
.stats {
  padding: 60px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--accent);
  margin-bottom: 12px;
}

.stat-label {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 280px;
  margin: 0 auto;
}

/* ─── Features ─── */
.features {
  padding: 100px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.features-header {
  max-width: 700px;
  margin-bottom: 64px;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.features-sub {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: border-color 0.3s;
}

.feature-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

.feature-card-accent {
  border-color: var(--border-accent);
  background: linear-gradient(160deg, rgba(200, 255, 0, 0.03), transparent 60%);
}

.feature-icon {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: -0.3px;
}

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

/* ─── Categories ─── */
.categories {
  padding: 100px 24px;
  max-width: 1100px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.categories h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 56px;
  max-width: 600px;
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.cat-item {
  background: var(--bg-elevated);
  padding: 32px 28px;
  border: 1px solid var(--border);
  transition: background 0.2s;
}

.cat-item:hover {
  background: var(--bg-card);
}

.cat-name {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.cat-examples {
  display: block;
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ─── Closing ─── */
.closing {
  padding: 120px 24px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(200, 255, 0, 0.02) 50%, var(--bg) 100%);
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 20px;
  line-height: 1.15;
}

.closing p {
  font-size: 19px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 8px;
}

.closing-bold {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px !important;
  color: var(--accent) !important;
  margin-top: 24px !important;
}

/* ─── Footer ─── */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1100px;
  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;
  letter-spacing: -0.5px;
}

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

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .hero {
    padding: 80px 20px 60px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .features {
    padding: 64px 20px;
  }

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

  .categories {
    padding: 64px 20px;
  }

  .closing {
    padding: 80px 20px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    letter-spacing: -1px;
  }

  .lede {
    font-size: 17px;
  }

  .feature-card {
    padding: 28px 24px;
  }
}