/* ============================================================================
 * lumen-nav-dropdowns.css — Yousef 2026-06-16
 * Library / AI & Technology / Sitemap appear as dropdowns in the icon nav.
 * ========================================================================== */

.nav-dropdown { position: relative; }
.nav-dropdown__btn {
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: inherit;
  transition: background var(--dur-fast, 200ms) var(--cb-ease, ease),
              border-color var(--dur-fast, 200ms) var(--cb-ease, ease);
}
.nav-dropdown__btn:hover,
.nav-dropdown__btn[aria-expanded="true"] {
  background: var(--jp-cream-200, #FDFBF5);
  border-color: var(--jp-gold-300, #E8C067);
}
.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 60;
  min-width: 280px;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--jp-cream-100, #FFFEFB);
  border: 1px solid var(--jp-cream-400, #F7EFD6);
  border-radius: 12px;
  padding: 8px 0;
  margin: 0;
  list-style: none;
  box-shadow: 0 6px 24px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.06);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms;
}
.nav-dropdown__btn[aria-expanded="true"] + .nav-dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown__menu li { margin: 0; }
.nav-dropdown__menu a {
  display: block;
  padding: 8px 18px;
  font-family: var(--ff-serif, 'Cormorant Garamond', Georgia, serif);
  font-size: 0.95rem;
  color: var(--jp-ink, #2A2D38);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}
.nav-dropdown__menu a:hover,
.nav-dropdown__menu a:focus-visible {
  background: var(--jp-cream-200, #FDFBF5);
  border-left-color: var(--jp-gold-400, #D4A843);
  color: var(--jp-ink, #2A2D38);
}

/* Mobile — drop down to full-width sheet */
@media (max-width: 768px) {
  .nav-dropdown__menu {
    right: auto;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    min-width: 88vw;
  }
  .nav-dropdown__btn[aria-expanded="true"] + .nav-dropdown__menu {
    transform: translateX(-50%) translateY(0);
  }
}