/*
 * Desktop dropdown navigation (templates/includes/header_dropdowns.html).
 * Desktop (lg+) only; the mobile burger modal is unchanged.
 */

/* Top-level trigger: chevron rotates and the item takes the brand colour while open. */
.site-nav .site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.site-nav__chevron {
  font-size: 0.75rem;
  transition: transform 0.18s ease;
}
.site-nav__item.is-open > .site-nav__link { color: var(--bs-primary); }
.site-nav__item.is-open .site-nav__chevron { transform: rotate(180deg); }

.site-nav .nav-link:focus-visible,
.site-nav__entry:focus-visible,
.site-nav__overview:focus-visible {
  outline: 2px solid var(--bs-primary);
  outline-offset: 2px;
  border-radius: 2px;
  box-shadow: none;
}

/* Full-width panel under the header, content in the normal container. */
.site-nav__panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1;
  padding: 2rem 0 2.25rem;
  background: #fff;
  border-bottom: 1px solid var(--bs-border-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s linear 0.18s;
}
.site-nav__item.is-open .site-nav__panel {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
/* Panel layout: intro column (~1/4) | grouped entry columns, all separated by
   fine vertical lines, 16px padding per column. */
.site-nav__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 3fr);
}
.site-nav__intro {
  padding-right: 16px;
  border-right: 1px solid #e6e9ec;
}
/* Group labels and the intro column's title share one style, so every
   column starts the same way. */
.site-nav__title,
.site-nav__group {
  margin: 0 0 14px;
  font-size: var(--agx-fs-12);
  font-weight: 500;
  line-height: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #6b757d;
}
.site-nav__lead {
  margin: 0 0 1rem;
  font-size: var(--agx-fs-12);
  line-height: 15.6px;
  color: #5b6570;
}
.site-nav__overview {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: var(--agx-fs-14);
  font-weight: 400;
  color: var(--bs-primary);
  text-decoration: none;
}
.site-nav__overview .bi { transition: transform 0.18s ease; }
.site-nav__overview:hover .bi,
.site-nav__overview:focus-visible .bi { transform: translateX(4px); }

.site-nav__columns {
  display: grid;
  grid-template-columns: repeat(var(--site-nav-cols, 2), minmax(0, 1fr));
}
.site-nav__column { padding: 0 16px; }
.site-nav__column + .site-nav__column { border-left: 1px solid #e6e9ec; }
.site-nav__group { padding-left: 8px; } /* aligned with the entries' tiles */
.site-nav__entries {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Entry: title + max. 2-line description, no icon (title and text start at the
   entry's padding). Hover and keyboard focus: surface background, radius 6px,
   as the rows of the language menu; the title stays black. */
.site-nav__entry {
  display: flex;
  align-items: flex-start;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--agx-ink);
  text-decoration: none;
  transition: background-color 0.18s ease;
}
.site-nav__text { display: flex; flex-direction: column; min-width: 0; }
.site-nav__entry-title {
  font-size: var(--agx-fs-16);
  font-weight: 500;
  line-height: 22.4px;
  letter-spacing: -0.005em;
  color: var(--agx-ink);
}
.site-nav__desc {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  margin-top: 2px;
  font-size: var(--agx-fs-12);
  font-weight: 400;
  line-height: 15.6px;
  color: #5b6570;
}
.site-nav__entry:hover,
.site-nav__entry:focus-visible { background-color: var(--agx-surface); color: var(--agx-ink); }
.site-nav .site-nav__entry:focus-visible {
  outline: 2px solid var(--agx-teal);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Page scrim directly below the header (also in the compact header state): dim + blur via backdrop-filter on this layer
   only (cheaper than filtering the whole page). Above the hero breadcrumb,
   below the sticky header (z-index 1020). */
.site-nav__scrim {
  position: fixed;
  top: var(--agx-nav-h, var(--header-height));  /* header-glass.css sets --agx-nav-h */
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1015;
  background: rgba(0, 0, 0, 0.28);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, visibility 0s linear 0.18s;
}
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .site-nav__scrim {
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
  }
}
.site-nav__scrim.is-visible {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.18s ease;
}

@media (max-width: 991.98px) {
  .site-nav__panel,
  .site-nav__scrim { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav__chevron,
  .site-nav__panel,
  .site-nav__item.is-open .site-nav__panel,
  .site-nav__scrim,
  .site-nav__scrim.is-visible,
  .site-nav__entry,
  .site-nav__overview .bi { transition: none; }
  .site-nav__panel,
  .site-nav__overview:hover .bi,
  .site-nav__overview:focus-visible .bi { transform: none; }
}