/* nav.css — Sticky navigation bar */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #0f172a;
  border-bottom: 1px solid #1e293b;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

.site-nav-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 0.6rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav .nav-brand {
  color: #f59e0b;
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.site-nav .nav-brand:hover {
  color: #fbbf24;
}

.site-nav .nav-back {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.15s;
}

.site-nav .nav-back:hover {
  color: #f1f5f9;
}