/* public/css/fm/accordion.css
 *
 * fm-accordion (DS #2) — expand/collapse (filtros do mapa, FAQs futuras).
 * Autocontido (skin coexiste): box-sizing, fonte, cor, reset de <button>.
 * Consome tokens fm. Chevron = caret CSS (borda) que gira quando o item abre.
 */
.fm-accordion {
  box-sizing: border-box;
  width: 100%;
  font-family: var(--fm-font-body);
}
.fm-accordion-item {
  box-sizing: border-box;
  border-bottom: 1px solid var(--fm-gray-100);
}
.fm-accordion-head {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--fm-space-4);
  width: 100%;
  margin: 0;
  padding: var(--fm-space-4) 0;
  border: 0;
  background: transparent;
  font-family: var(--fm-font-body);
  text-align: left;
  cursor: pointer;
}
.fm-accordion-head:focus-visible {
  box-shadow: var(--fm-shadow-focus);
  outline: none;
}
.fm-accordion-title {
  font-size: var(--fm-text-md);
  font-weight: 600;
  color: var(--fm-navy);
  line-height: 1.3;
}
/* chevron = caret de borda (›) apontando p/ baixo; gira 180° quando aberto */
.fm-accordion-chevron {
  flex: 0 0 auto;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.25rem;
  border-right: 2px solid var(--fm-gray-300);
  border-bottom: 2px solid var(--fm-gray-300);
  transform: rotate(45deg);
  transition: transform 0.18s ease;
}
.fm-accordion-item.is-open .fm-accordion-chevron {
  transform: rotate(-135deg);
  border-color: var(--fm-teal);
}
.fm-accordion-panel {
  box-sizing: border-box;
  padding-bottom: var(--fm-space-4);
  font-size: var(--fm-text-md);
  color: var(--fm-gray-700);
  line-height: 1.5;
}