/* ============================================================
   Bibliothèque 950 catégories Periaza
   Charte encre + ambre, aucune coupure visuelle, style épuré.
   ============================================================ */

.brain-library {
  --brain-bg: var(--bg);
  --brain-panel: var(--bg-panel);
  --brain-ivory: var(--text);
  --brain-gold: var(--accent);
  --brain-rose: var(--accent);
  --brain-muted: var(--text-secondary);
  --brain-border: var(--border-strong);
  color: var(--text);
}

.brain-library__wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

@media (min-width: 900px) {
  .brain-library__wrap {
    grid-template-columns: minmax(0, 1fr) 320px;
  }
}

/* Chambre noire : la scene n'est plus une carte posee sur le fond.
   Plus de bordure, plus de fond opaque : le volume flotte dans
   l'encre et c'est le halo (.brain-halo) qui fait la lumiere. */
.brain-library__stage {
  position: relative;
  width: 100%;
  max-width: 700px;
  aspect-ratio: 1 / 0.78;
  margin: 0 auto;
  border: 0;
  border-radius: 0;
  overflow: hidden;
  background: transparent;
  touch-action: pan-y;
  outline: none;
}

.brain-library__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.brain-library__labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.brain-library__category {
  position: absolute;
  left: 0;
  top: 0;
  transform: translate(-9999px, -9999px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  min-height: 24px;
  padding: 4px 9px;
  background: rgba(5, 6, 7, .62);
  border: 1px solid rgba(232, 163, 61, .35);
  border-radius: 999px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  pointer-events: auto;
  transition: none;
}

@media (max-width: 760px) {
  .brain-library__category {
    min-width: 44px;
    min-height: 44px;
    padding: 6px 12px;
  }
}

.brain-library__category:hover,
.brain-library__category.is-hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(232, 163, 61, .14);
}

.brain-library__category.is-selected {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.brain-library__category:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.brain-library__category.is-back,
.brain-library__category.is-collided {
  visibility: hidden;
  pointer-events: none;
}

.brain-library__category-count {
  opacity: .7;
  font-size: 11px;
  margin-left: 6px;
}

.brain-library__hint {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
}

.brain-library__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.brain-library__zoom {
  min-width: 44px;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
  transition: none;
}

.brain-library__zoom:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.brain-library__zoom:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.brain-library__zoom-value {
  min-width: 48px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
  align-self: center;
}

.brain-library__detail {
  border: 1px solid rgba(232, 163, 61, .35);
  border-radius: var(--radius-card);
  padding: 18px 20px;
  background: rgba(255, 255, 255, .03);
  min-width: 0;
}

/* Ouverture du panneau : entree calme sur transform + opacity (04-MOTION-SYSTEM.md). */
.brain-library__detail:not([hidden]) {
  animation: brain-detail-in 0.6s var(--ease-reveal) both;
}

@keyframes brain-detail-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.brain-library__detail[hidden] {
  display: none;
}

.brain-library__detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.brain-library__detail-name {
  font-family: var(--font-title);
  font-size: 20px;
  margin: 0;
  color: var(--accent);
}

.brain-library__detail-close {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  transition: none;
}

.brain-library__detail-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.brain-library__detail-count {
  font-size: 13px;
  color: var(--accent);
  margin: 0 0 10px;
}

.brain-library__detail-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-soft);
  margin: 0;
}

.brain-library__detail-cta {
  margin-top: 14px;
  min-height: 44px;
}

.brain-library__legend {
  max-width: var(--container);
  margin: 42px auto 0;
  padding-left: 0;
  padding-right: 0;
  border-top: 1px solid var(--border);
  padding: 20px 0 0;
}

.brain-library__legend summary {
  display: flex;
  align-items: center;
  min-height: 44px;
  cursor: pointer;
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 12px;
}

.brain-library__filter {
  width: min(100%, 420px);
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  color: var(--text);
  font-family: var(--font-body);
  margin-bottom: 14px;
  transition: none;
}

.brain-library__filter:hover { border-color: var(--accent-strong); }

.brain-library__filter:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.brain-library__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px 18px;
  max-height: 420px;
  overflow-y: auto;
}

.brain-library__list-item {
  font-size: 13px;
  line-height: 1.4;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 4px;
  border-bottom: 1px dashed var(--border);
}

.brain-library__list-name {
  color: var(--text);
  font-weight: 500;
}

.brain-library__list-count {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
}

.brain-library__sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Filet reduced-motion : etat final immediat, aucune entree animee. */
@media (prefers-reduced-motion: reduce) {
  .brain-library__category {
    transition: none;
  }

  .brain-library__detail:not([hidden]) {
    animation: none;
    opacity: 1;
    transform: none;
  }
}