/* ============================================================
   nav-search.css — Typeahead "jump to a page" search used on
   the States, Counties, and MPOs overview pages. Pairs with
   js/nav-search.js.
   ============================================================ */

.nav-search {
  position: relative;
  display: grid;
  gap: var(--space-2);
  max-width: 560px;
  /* margin: var(--space-4) 0 var(--space-2); */
}

.nav-search__label {
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-search__field {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-search__icon {
  position: absolute;
  left: 16px;
  width: 18px;
  height: 18px;
  color: var(--muted);
  pointer-events: none;
}

.nav-search__input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--surface-1);
  color: var(--text);
  font: 600 var(--text-sm) / 1 var(--font-body);
  padding: 0 var(--space-4) 0 44px;
}
.nav-search__input::placeholder { color: var(--muted); }
.nav-search__input:focus-visible {
  outline: 2px solid var(--primary-bright);
  outline-offset: 3px;
  border-color: var(--primary);
}
.nav-search__input::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
}

.nav-search__listbox {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 30;
  margin: var(--space-2) 0 0;
  padding: var(--space-2);
  list-style: none;
  background: var(--surface-2, var(--surface-1));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-pop);
  max-height: min(60vh, 420px);
  overflow-y: auto;
  backdrop-filter: blur(12px);
}

.nav-search__option {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  column-gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: calc(var(--radius-lg) - 8px);
  cursor: pointer;
  color: var(--text);
}
.nav-search__option + .nav-search__option { margin-top: 2px; }
.nav-search__option:hover,
.nav-search__option.is-active {
  background: var(--hover-tint);
}
.nav-search__option.is-active {
  outline: 1px solid var(--primary);
}

.nav-search__option-label {
  font: 700 var(--text-base) / 1.2 var(--font-body);
  color: var(--text);
}
.nav-search__option-label mark {
  background: transparent;
  color: var(--accent, var(--primary-bright));
  font-weight: 900;
}
.nav-search__option-sub {
  font: 500 var(--text-xs) / 1.2 var(--font-body);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  justify-self: end;
  text-align: right;
}

.nav-search__empty {
  padding: var(--space-3) var(--space-4);
  color: var(--muted);
  font-size: var(--text-sm);
  list-style: none;
}

/* ── Skeleton placeholder ─────────────────────────────────
   Rendered in HTML before js/nav-search.js mounts the real
   combobox, so the page doesn't reflow when the typeahead
   appears. mountNavSearch replaces root.innerHTML, so the
   skeleton is discarded automatically once data is ready. */
.nav-search.is-skeleton {
  position: relative;
  display: grid;
  gap: var(--space-2);
  max-width: 560px;
  margin: var(--space-4) 0 var(--space-2);
}

.nav-search__skeleton-label {
  display: inline-block;
  width: max-content;
  max-width: 100%;
  color: transparent;
  font: 700 var(--text-xs) / 1.2 var(--font-body);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--surface-1);
  border-radius: 999px;
  padding: 0.15em 0.6em;
}

.nav-search__skeleton-field {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background:
    linear-gradient(
      90deg,
      var(--surface-1) 0%,
      var(--shimmer) 50%,
      var(--surface-1) 100%
    );
  background-size: 200% 100%;
  background-position: 100% 0;
}

@media (prefers-reduced-motion: no-preference) {
  .nav-search__skeleton-label,
  .nav-search__skeleton-field {
    animation: nav-search-shimmer 1.4s ease-in-out infinite;
  }
  .nav-search__skeleton-field {
    animation-name: nav-search-shimmer-bg;
  }
}

@keyframes nav-search-shimmer {
  0%, 100% { opacity: 0.45; }
  50%      { opacity: 0.8; }
}

@keyframes nav-search-shimmer-bg {
  0%   { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}