/* ════════════════════════════════════════════════════════════════════
 *  collapse-system-v1.css — Système global de pliage/dépliage HYDPOLL
 * ════════════════════════════════════════════════════════════════════
 *  Couvre toutes les variations issues du moteur :
 *    .hyd-collapse                 → wrapper
 *    .hyd-collapse__head           → ligne cliquable (chevron + titre + hint)
 *    .hyd-collapse__chevron        → SVG rotatif
 *    .hyd-collapse__title          → titre
 *    .hyd-collapse__hint           → badge / compteur droite
 *    .hyd-collapse__body           → contenu (max-height animé)
 *    .hyd-collapse.is-open         → état ouvert
 *
 *  Animation : 180ms cubic-bezier, sans saut.
 *  Couleurs : palette HYDPOLL (no-gold/no-amber).
 * ════════════════════════════════════════════════════════════════════ */

.hyd-collapse {
  background: #fff;
  border: 1px solid #e2eaf2;
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.hyd-collapse.is-open {
  border-color: #cfe2f3;
  box-shadow: 0 1px 4px rgba(11,33,64,.04);
}
.hyd-collapse__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  cursor: pointer;
  user-select: none;
  background: #fff;
  transition: background .15s ease;
  font-size: 13px;
  font-weight: 700;
  color: #0B2140;
}
.hyd-collapse__head:hover {
  background: #f0f7fd;
}
.hyd-collapse__head:focus-visible {
  outline: 2px solid #2471a3;
  outline-offset: -2px;
  background: #e8f4fd;
}
.hyd-collapse__chevron {
  flex-shrink: 0;
  color: #475569;
  transition: transform .18s cubic-bezier(.4, 1.8, .6, 1);
}
.hyd-collapse.is-open .hyd-collapse__chevron {
  transform: rotate(180deg);
  color: #2471a3;
}
.hyd-collapse__title {
  flex: 1;
  min-width: 0;
  font-weight: 700;
  letter-spacing: .005em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hyd-collapse__hint {
  font-size: 11px;
  font-weight: 700;
  color: #94a3b8;
  letter-spacing: .02em;
  padding: 2px 8px;
  border-radius: 50px;
  background: #f1f5f9;
}
.hyd-collapse__hint:empty {
  display: none;
}
.hyd-collapse.is-open .hyd-collapse__hint {
  background: #e8f4fd;
  color: #2471a3;
}
.hyd-collapse__body {
  overflow: hidden;
  transition: max-height .18s cubic-bezier(.4, 0, .2, 1);
}
.hyd-collapse.is-open > .hyd-collapse__body {
  border-top: 1px solid #f1f5f9;
}
.hyd-collapse:not(.is-open) > .hyd-collapse__body {
  max-height: 0 !important;
}
.hyd-collapse__body > * {
  padding: 12px 14px;
}
/* Si le contenu direct est lui-même un .card / .hyd-section, on évite le double padding */
.hyd-collapse__body > .card,
.hyd-collapse__body > .hyd-section {
  padding: 12px 14px;
}

/* Variante compacte (pour densité forte, ex. lignes de devis pliables) */
.hyd-collapse.is-compact .hyd-collapse__head {
  padding: 7px 10px;
  font-size: 12px;
}
.hyd-collapse.is-compact .hyd-collapse__body > * {
  padding: 8px 10px;
}

/* Variante "ghost" (sans bordure ni fond), pour intégration discrète */
.hyd-collapse.is-ghost {
  background: transparent;
  border: 0;
  margin-bottom: 6px;
}
.hyd-collapse.is-ghost .hyd-collapse__head {
  padding: 8px 0;
  background: transparent;
  border-bottom: 1px dashed #e2e8f0;
}
.hyd-collapse.is-ghost .hyd-collapse__head:hover {
  background: transparent;
  border-bottom-color: #2471a3;
}
.hyd-collapse.is-ghost.is-open > .hyd-collapse__body {
  border-top: 0;
}

/* Bouton global "Tout plier / Tout déplier" — style cohérent */
[data-collapse-all] {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid #cfe2f3;
  border-radius: 8px;
  background: #fff;
  color: #2471a3;
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all .15s;
}
[data-collapse-all]:hover {
  background: #e8f4fd;
  border-color: #2471a3;
}

/* Reduce motion : couper l'animation */
@media (prefers-reduced-motion: reduce) {
  .hyd-collapse__chevron,
  .hyd-collapse__body {
    transition: none !important;
  }
}