/* Mobile navigation panel */

@media (max-width: 768px) {
  /* No-JS: keep primary links reachable in document flow */
  .site-header {
    height: auto;
    min-height: var(--header-height, 4rem);
  }

  .site-header__inner {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    height: auto;
    padding-top: var(--spacing-2);
    padding-bottom: var(--spacing-2);
  }

  .brand {
    grid-column: 1;
    grid-row: 1;
  }

  .site-header__actions {
    grid-column: 2;
    grid-row: 1;
  }

  .primary-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .primary-nav .nav-link {
    display: block;
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    min-height: 2.75rem;
  }

  .primary-nav .nav-link:last-child {
    border-bottom: none;
  }

  .primary-nav .nav-link[aria-current="location"] {
    background-color: var(--bg-secondary);
    border-left: 3px solid var(--accent-color);
    padding-left: calc(var(--spacing-sm) - 3px);
  }

  /* JS enhancement: drawer + hamburger */
  html.has-mobile-nav .site-header {
    height: var(--header-height, 4rem);
  }

  html.has-mobile-nav .site-header__inner {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto;
    height: 100%;
    padding-top: 0;
    padding-bottom: 0;
  }

  html.has-mobile-nav .menu-toggle {
    display: inline-flex;
  }

  html.has-mobile-nav .primary-nav {
    position: fixed;
    top: var(--header-height, 4rem);
    left: 0;
    right: 0;
    z-index: 999;
    grid-column: auto;
    grid-row: auto;
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 12px var(--shadow);
    transform: translateX(-100%);
    visibility: hidden;
    transition:
      transform var(--transition-base),
      visibility var(--transition-base);
  }

  html.has-mobile-nav .primary-nav.is-open {
    transform: translateX(0);
    visibility: visible;
  }
}

body.is-nav-open {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  html.has-mobile-nav .primary-nav {
    transition: none;
  }
}