/* Tablet and mobile navigation */
@media (max-width: 960px) {
  :root {
    --height-header: var(--height-header-mobile);
  }

  .site-container {
    width: min(calc(100% - (var(--page-gutter-mobile) * 2)), var(--width-wide));
  }

  .menu-toggle,
  .synapser-nav-toggle {
    position: relative;
    z-index: var(--z-menu-toggle);
    display: flex;
    flex: 0 0 calc(var(--space-xl) + var(--space-sm));
    flex-direction: column;
    align-items: center;
    justify-content: center;
    order: -1;
  }

  .site-header__inner {
    gap: var(--space-sm);
  }

  .site-header__actions {
    margin-left: auto;
  }

  .synapser-nav-toggle__line {
    display: block;
    width: 100%;
    height: var(--border-width-accent);
    margin: var(--space-2xs) 0;
    background: var(--color-text-inverse);
  }

  /*
   * Visual fallback for the shared mobile header. Some home-page styles can
   * override inherited colors, so the hamburger glyph must be self-contained.
   */
  body .site-header[data-site-header] > .site-header__inner > .synapser-nav-toggle {
    position: relative;
    display: flex !important;
    width: 2.75rem;
    height: 2.75rem;
    flex: 0 0 2.75rem;
    color: #fbf9f6 !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  body .site-header[data-site-header] > .site-header__inner > .synapser-nav-toggle > .synapser-nav-toggle__line {
    position: absolute;
    top: 50%;
    left: 50%;
    display: block !important;
    width: 1.4rem !important;
    min-height: 2px;
    height: 2px !important;
    margin: 0 !important;
    background-color: #fbf9f6 !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform-origin: center;
  }

  body .site-header[data-site-header] > .site-header__inner > .synapser-nav-toggle > .synapser-nav-toggle__line:nth-child(1) {
    transform: translate(-50%, calc(-50% - 0.42rem)) !important;
  }

  body .site-header[data-site-header] > .site-header__inner > .synapser-nav-toggle > .synapser-nav-toggle__line:nth-child(2) {
    transform: translate(-50%, -50%) !important;
  }

  body .site-header[data-site-header] > .site-header__inner > .synapser-nav-toggle > .synapser-nav-toggle__line:nth-child(3) {
    transform: translate(-50%, calc(-50% + 0.42rem)) !important;
  }

  body .site-header[data-site-header] > .site-header__inner > .synapser-nav-toggle[aria-expanded="true"] > .synapser-nav-toggle__line:nth-child(1) {
    transform: translate(-50%, -50%) rotate(45deg) !important;
  }

  body .site-header[data-site-header] > .site-header__inner > .synapser-nav-toggle[aria-expanded="true"] > .synapser-nav-toggle__line:nth-child(2) {
    opacity: 0 !important;
  }

  body .site-header[data-site-header] > .site-header__inner > .synapser-nav-toggle[aria-expanded="true"] > .synapser-nav-toggle__line:nth-child(3) {
    transform: translate(-50%, -50%) rotate(-45deg) !important;
  }

  .site-header {
    width: 100%;
    backdrop-filter: none;
  }

  body.menu-open .site-header {
    position: fixed;
    z-index: var(--z-menu-toggle);
    inset: var(--space-0) var(--space-0) auto;
  }

  body.admin-bar.menu-open .site-header {
    top: var(--admin-bar-height);
  }

  .primary-navigation {
    position: fixed;
    z-index: var(--z-navigation);
    inset: var(--height-header) var(--space-0) var(--space-0);
    display: grid;
    width: 100vw;
    max-width: none;
    align-content: start;
    padding: var(--space-2xl) var(--page-gutter);
    overflow-y: auto;
    background: var(--color-surface-dark);
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition:
      opacity var(--transition-normal),
      visibility var(--transition-normal),
      transform var(--transition-normal);
  }

  .primary-navigation.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .primary-menu {
    width: min(100%, var(--width-menu));
    display: block;
    margin-inline: auto;
  }

  .primary-menu > li {
    opacity: 0;
    transform: translateX(var(--space-lg));
    transition:
      opacity var(--transition-normal),
      transform var(--transition-normal);
  }

  .primary-navigation.is-open .primary-menu > li {
    opacity: 1;
    transform: none;
  }

  .primary-navigation.is-open .primary-menu > li:nth-child(2) { transition-delay: var(--duration-stagger); }
  .primary-navigation.is-open .primary-menu > li:nth-child(3) { transition-delay: calc(var(--duration-stagger) * 2); }
  .primary-navigation.is-open .primary-menu > li:nth-child(4) { transition-delay: calc(var(--duration-stagger) * 3); }
  .primary-navigation.is-open .primary-menu > li:nth-child(5) { transition-delay: calc(var(--duration-stagger) * 4); }
  .primary-navigation.is-open .primary-menu > li:nth-child(6) { transition-delay: calc(var(--duration-stagger) * 5); }

  .primary-menu > li > a,
  .menu-setup-link {
    padding: var(--space-sm) var(--space-0);
    border-bottom: var(--border-width) solid var(--color-bone-12);
    font-size: var(--font-size-lg);
  }

  .primary-menu > li > a::after {
    display: none;
  }

  .primary-menu .sub-menu {
    position: static;
    min-width: var(--space-0);
    padding: var(--space-0) var(--space-0) var(--space-0) var(--space-md);
    opacity: 1;
    visibility: visible;
    transform: none;
    background: var(--color-transparent);
    box-shadow: none;
  }

  .content-layout {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .site-footer__meta {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .site-footer__credits {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .site-header__inner {
    gap: var(--space-xs);
  }

  .site-branding {
    display: flex;
    align-self: center;
    align-items: center;
    min-width: 0;
    flex: 1 1 auto;
    line-height: 0;
  }

  .site-branding .custom-logo-link,
  .site-branding .site-logo-fallback {
    display: flex;
    align-items: center;
  }

  .site-branding .custom-logo,
  .site-branding .site-logo-fallback img {
    max-width: 11rem;
  }

  .site-header__actions {
    gap: var(--space-2xs);
  }
}

/* Small mobile screens */
@media (max-width: 480px) {
  .admin-bar .site-header {
    top: var(--admin-bar-height-mobile);
  }

  body.admin-bar.menu-open .site-header {
    top: var(--admin-bar-height-mobile);
  }

  .content-layout {
    padding-block: var(--space-2xl);
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .site-footer__brand,
  .site-footer__meta {
    grid-column: auto;
  }

  .search-form {
    flex-direction: column;
  }
}