@media (max-width: 860px) {
  .site-nav {
    padding: 0 1rem;
  }
  .menu-toggle { display: inline-grid; place-items: center; }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    background: color-mix(in srgb, var(--bg-2) 90%, transparent);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 100;
  }
  .nav-links.open { display: flex; }
  .stats-grid, .metric-grid, .contact-layout, .form-row, .admin-grid {
    grid-template-columns: 1fr;
  }
  footer { flex-direction: column; }
  .admin-sidebar {
    position: static;
    width: auto;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .admin-shell { margin-left: 0; }
}

@media (max-width: 560px) {
  .hero, .section { padding-left: 1rem; padding-right: 1rem; }
  .hero h1 { font-size: 2.45rem; }
  .nav-actions { gap: 0.35rem; }
}