:root { --fg: #1a1a1a; --muted: #555; --accent: #2b6cb0; --border: #e2e8f0; }
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg); max-width: 52rem; margin: 0 auto; padding: 2.5rem 1.25rem;
  line-height: 1.6;
}
h1 { font-size: 2rem; margin-bottom: 0.25rem; }
.sub { color: var(--muted); margin-top: 0; }
.badge {
  display: inline-block; font-size: 0.8rem; color: #276749;
  background: #f0fff4; border: 1px solid #c6f6d5; border-radius: 0.4rem;
  padding: 0.15rem 0.5rem; margin: 0.75rem 0;
}
.cards { display: grid; gap: 1rem; margin: 1.5rem 0; }
.card { border: 1px solid var(--border); border-radius: 0.6rem; padding: 1rem 1.25rem; }
.card h3 { margin: 0 0 0.35rem; }
.nav a { color: var(--accent); text-decoration: none; font-weight: 600; }
.nav a:hover { text-decoration: underline; }
.nav { display: flex; flex-wrap: wrap; gap: 1rem; margin: 1.5rem 0; }
footer { color: var(--muted); font-size: 0.85rem; border-top: 1px solid var(--border);
  margin-top: 2rem; padding-top: 1rem; }