/* Shared Navigation Styles — included on every page */
header { border-bottom: 1px solid var(--border); padding: 1rem 0; }
nav { display: flex; justify-content: space-between; align-items: center; max-width: 720px; margin: 0 auto; padding: 0 1.5rem; }
.logo { color: var(--text); text-decoration: none; font-weight: 500; font-size: 1.1rem; }
.nav-links { list-style: none; display: flex; gap: 1.5rem; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: 0.85rem; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); }

footer {
  border-top: 1px solid var(--border); padding: 2rem 0;
  text-align: center; font-size: 0.75rem; color: var(--text-dim);
  margin-top: 3rem;
}

@media (max-width: 600px) {
  nav { flex-direction: column; gap: 0.5rem; }
}