/* collapsible.css — `<details>` estilitzat (basat en fonts-seccio de Ciutadata).
 *
 * Markup esperat:
 *   <details class="collapsible">
 *     <summary>Títol uppercase</summary>
 *     <div class="collapsible-body">
 *       <p>Contingut...</p>
 *       <ul class="collapsible-list">
 *         <li>Item</li>
 *       </ul>
 *     </div>
 *   </details>
 *
 * Color accent: usa `var(--primary)`. Cada projecte el seteja al :root
 * inline (Transitem: var(--pink-ink), Denunciem: var(--red), etc.). Si no
 * està definit, fallback a var(--ink) (text normal).
 *
 * Usat per:
 *  - shared/js/about-modal.js (render automàtic de cfg.sections)
 *  - manualment en qualsevol HTML que vulgui details col·lapsables
 */

details.collapsible {
  margin: 0.5rem 0 0;
}

details.collapsible + details.collapsible {
  margin-top: 0.25rem;
}

details.collapsible summary {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0 0.3rem;
  user-select: none;
}

/* El color s'aplica al .collapsible-label (span dins del summary) perquè
 * en alguns contextos el navegador no aplica color directament al <summary>.
 * Si el summary té text directe (sense .collapsible-label), aplica al summary
 * i confiem que el navegador hi cooperi. */
details.collapsible summary,
details.collapsible .collapsible-label {
  color: var(--ink-3);
  transition: color 0.15s;
}

details.collapsible summary::-webkit-details-marker { display: none; }

details.collapsible summary::before {
  content: '›';
  font-size: 1rem;
  line-height: 1;
  display: inline-block;
  transition: transform 0.2s, color 0.15s;
  color: var(--ink-4);
}

details.collapsible[open] summary,
details.collapsible[open] .collapsible-label,
details.collapsible summary:hover,
details.collapsible summary:hover .collapsible-label {
  color: var(--primary, var(--ink));
}

details.collapsible[open] summary::before,
details.collapsible summary:hover::before {
  transform: rotate(90deg);
  color: var(--primary, var(--ink));
}

/* (només ::before del [open] és el que rota — hover no rota; refinament: */
details.collapsible summary:hover::before { transform: none; }
details.collapsible[open] summary::before { transform: rotate(90deg); }

.collapsible-body {
  padding: 0.1rem 0 0.6rem 1.1rem;
}

.collapsible-body p {
  font-size: 0.82rem;
  color: var(--ink-2);
  line-height: 1.55;
  margin-bottom: 0.5rem;
}

.collapsible-body p:last-child {
  margin-bottom: 0;
}

.collapsible-list {
  list-style: none;
  padding: 0;
  margin: 0.2rem 0 0.6rem;
}

.collapsible-list li {
  font-size: 0.82rem;
  color: var(--ink-2);
  line-height: 1.55;
  padding: 0.1rem 0 0.1rem 1rem;
  position: relative;
}

.collapsible-list li::before {
  content: '·';
  position: absolute;
  left: 0.2rem;
  color: var(--ink-4);
}

/* ── Dark mode ────────────────────────────────────── */
/* Specificity equal: ID-free a tots dos mode, però open/hover ha de venir
 * DESPRÉS al cascade per guanyar dins dark. Doblem les regles open/hover
 * amb prefix html.dark per igualar la jerarquia.
 */
html.dark details.collapsible summary,
html.dark details.collapsible .collapsible-label {
  color: var(--ink-3);
}

html.dark details.collapsible summary::before {
  color: var(--ink-4);
}

html.dark details.collapsible[open] summary,
html.dark details.collapsible[open] .collapsible-label,
html.dark details.collapsible summary:hover,
html.dark details.collapsible summary:hover .collapsible-label {
  color: var(--primary, var(--ink));
}

html.dark details.collapsible[open] summary::before,
html.dark details.collapsible summary:hover::before {
  color: var(--primary, var(--ink));
}