/* Neurohaven Knowledge Library search — page-specific, reusable module. */
.knowledge-search {
  width: min(100%, 45rem);
  margin-top: clamp(1.25rem, 2.6vw, 1.875rem);
  position: relative;
  z-index: 8;
}

.knowledge-search__label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.125rem;
  margin-bottom: .5625rem;
  color: color-mix(in srgb, var(--ink-dim) 86%, white 14%);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.knowledge-search__label span:last-child {
  color: var(--muted);
  letter-spacing: .04em;
  text-transform: none;
}

.knowledge-search__control {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr) 2.75rem;
  align-items: center;
  min-height: 3.625rem;
  background: rgba(5, 12, 24, .78);
  border: .0625rem solid rgba(125, 214, 197, .38);
  border-radius: 1rem;
  box-shadow: 0 1.25rem 3.4375rem rgba(0, 0, 0, .30), inset 0 .0625rem 0 rgba(255,255,255,.04);
  backdrop-filter: blur(1.125rem) saturate(135%);
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.knowledge-search:focus-within .knowledge-search__control {
  border-color: var(--accent);
  background: rgba(6, 15, 29, .92);
  box-shadow: 0 0 0 .1875rem rgba(52, 215, 238, .12), 0 1.5rem 4.375rem rgba(0, 0, 0, .38);
}

.knowledge-search__icon {
  width: 1.25rem;
  height: 1.25rem;
  justify-self: center;
  color: var(--accent);
  opacity: .9;
}

.knowledge-search__input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font: 600 1rem/1.25 var(--font-body);
  padding: 1.0625rem 0;
  caret-color: var(--accent);
}

.knowledge-search__input::placeholder { color: color-mix(in srgb, var(--muted) 82%, transparent); }

.knowledge-search__clear {
  width: 2.125rem;
  height: 2.125rem;
  justify-self: center;
  display: grid;
  place-items: center;
  border: .0625rem solid transparent;
  border-radius: .625rem;
  background: transparent;
  color: var(--muted);
  font: 500 1.375rem/1 var(--font-body);
  cursor: pointer;
}

.knowledge-search__clear:hover,
.knowledge-search__clear:focus-visible {
  color: var(--ink);
  border-color: var(--line-strong);
  background: var(--panel-2);
  outline: 0;
}

.knowledge-search__panel {
  margin-top: .5625rem;
  max-height: min(58vh, 31.875rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: rgba(7, 13, 28, .96);
  border: .0625rem solid rgba(125, 214, 197, .30);
  border-radius: 1rem;
  box-shadow: 0 1.75rem 5rem rgba(0, 0, 0, .50);
  backdrop-filter: blur(1.25rem) saturate(140%);
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--accent) 58%, transparent) rgba(255,255,255,.04);
}

.knowledge-search__panel::-webkit-scrollbar { width: .5625rem; }
.knowledge-search__panel::-webkit-scrollbar-track { background: rgba(255,255,255,.03); border-radius: 62.4375rem; }
.knowledge-search__panel::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent), var(--accent-3));
  border: .125rem solid rgba(7, 13, 28, .96);
  border-radius: 62.4375rem;
}

.knowledge-search__list { list-style: none; padding: .4375rem; margin: 0; }

.knowledge-search__option {
  margin: 0;
  border-bottom: .0625rem solid rgba(255,255,255,.06);
}
.knowledge-search__option:last-child { border-bottom: 0; }

.knowledge-search__link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .5rem 1.125rem;
  padding: .875rem .9375rem;
  border-radius: .6875rem;
  color: var(--ink-dim);
  transition: background .16s ease, color .16s ease, transform .16s ease;
}

.knowledge-search__link:hover,
.knowledge-search__link:focus-visible,
.knowledge-search__option.is-active .knowledge-search__link {
  color: var(--ink);
  background: linear-gradient(110deg, rgba(52,215,238,.12), rgba(139,156,255,.08));
  outline: 0;
  transform: translateX(.125rem);
}

.knowledge-search__title {
  display: block;
  font-family: var(--font-display);
  font-size: .9375rem;
  font-weight: 700;
  line-height: 1.3;
}

.knowledge-search__title mark {
  background: transparent;
  color: var(--accent);
  font: inherit;
}

.knowledge-search__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .375rem .625rem;
  margin-top: .3125rem;
  color: var(--muted);
  font-size: .75rem;
  line-height: 1.35;
}

.knowledge-search__section {
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.knowledge-search__arrow {
  align-self: center;
  color: var(--accent);
  font-size: 1rem;
}

.knowledge-search__empty,
.knowledge-search__loading,
.knowledge-search__error {
  margin: 0;
  padding: 1.125rem 1.25rem;
  color: var(--muted);
  font-size: .875rem;
}

.knowledge-search__error { color: var(--ember); }
.knowledge-search__status { position: absolute !important; width: .0625rem; height: .0625rem; padding: 0; margin: -.0625rem; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.knowledge-search-results {
  margin-bottom: clamp(2.75rem, 6vw, 5.125rem);
  padding: clamp(1.375rem, 3vw, 2.125rem);
  border: .0625rem solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(130deg, rgba(52,215,238,.08), rgba(139,156,255,.05));
  box-shadow: var(--shadow-glow);
}

.knowledge-search-results__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: end;
  gap: .875rem 1.5rem;
  margin-bottom: 1.375rem;
}
.knowledge-search-results__head h2 { font-size: clamp(1.45rem, 2.5vw, 2rem); }
.knowledge-search-results__head p { margin: .3125rem 0 0; }
.knowledge-search-results__clear { font: 600 .8125rem/1 var(--font-mono); }

.knowledge-search-results__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .625rem;
}

.knowledge-search-result-card {
  display: grid;
  gap: .4375rem;
  min-width: 0;
  padding: 1.0625rem 1.125rem;
  color: var(--ink-dim);
  background: var(--panel);
  border: .0625rem solid var(--line);
  border-radius: .875rem;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.knowledge-search-result-card:hover,
.knowledge-search-result-card:focus-visible {
  color: var(--ink);
  border-color: var(--accent);
  background: var(--panel-2);
  transform: translateY(-.125rem);
  outline: 0;
}
.knowledge-search-result-card strong { font-family: var(--font-display); font-size: .9375rem; }
.knowledge-search-result-card p { margin: 0; color: var(--muted); font-size: .8125rem; }

[data-theme="light"] .knowledge-search__control,
[data-theme="light"] .knowledge-search__panel {
  background: rgba(255,255,255,.94);
  border-color: rgba(15,182,212,.28);
}
[data-theme="light"] .knowledge-search__control { box-shadow: 0 1.125rem 3.125rem rgba(35,60,110,.18); }
[data-theme="light"] .knowledge-search__panel { box-shadow: 0 1.5rem 3.75rem rgba(35,60,110,.24); }

@media (max-width: 43.75rem) {
  .knowledge-search__label span:last-child { display: none; }
  .knowledge-search__control { grid-template-columns: 2.75rem minmax(0, 1fr) 2.625rem; min-height: 3.375rem; }
  .knowledge-search__input { font-size: .9375rem; padding-block: .9375rem; }
  .knowledge-search__panel { max-height: min(56vh, 26.875rem); }
  .knowledge-search-results__grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .knowledge-search__control,
  .knowledge-search__link,
  .knowledge-search-result-card { transition: none; }
}