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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #1a1a1a;
  background: #fafafa;
  line-height: 1.5;
}

.site-header {
  padding: 4rem 2rem;
  text-align: center;
  background: #111827;
  color: #fff;
}

.site-header h1 { font-size: 2.25rem; margin-bottom: 0.75rem; }
.site-header p { font-size: 1.1rem; color: #cbd5e1; }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.feature h2 { font-size: 1.25rem; margin-bottom: 0.5rem; color: #111827; }
.feature p { color: #4b5563; }

.site-footer {
  text-align: center;
  padding: 2rem;
  color: #9ca3af;
  font-size: 0.9rem;
}