* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #111827;
  background: #f9fafb;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem;
}

.hero {
  background: radial-gradient(circle at top left, #4b5563, #111827);
  color: #f9fafb;
  padding: 4rem 0 3rem;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
}

.sub {
  max-width: 32rem;
  opacity: 0.9;
}

.actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn.primary {
  background: #fbbf24;
  color: #111827;
}

.btn.ghost {
  border-color: rgba(249, 250, 251, 0.6);
  color: #f9fafb;
}

.section {
  padding: 3rem 0;
}

.section.alt {
  background: #f3f4f6;
}

h2 {
  margin-top: 0;
  margin-bottom: 1rem;
}

pre {
  background: #111827;
  color: #e5e7eb;
  padding: 1rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  font-size: 0.85rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.card {
  background: white;
  border-radius: 0.75rem;
  padding: 1.25rem;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.examples {
  padding-left: 1.2rem;
}

.footer {
  padding: 1.5rem 0 2rem;
  font-size: 0.85rem;
  color: #6b7280;
}

@media (max-width: 640px) {
  .hero {
    padding: 3rem 0 2.5rem;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
}