/**
 * toc.css — BEM: toc, toc__*
 */
.toc {
  background: var(--color-bg-dark);
  border-radius: var(--radius-card);
  padding: var(--space-card-padding);
  margin-block: var(--space-section);
}

.toc__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-h3);
}

.toc__arrow {
  color: var(--color-heading-gold);
  transition: transform var(--transition-base);
  font-size: 0.8em;
}

.toc__toggle[aria-expanded="true"] .toc__arrow {
  transform: rotate(180deg);
}

.toc__list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1rem;
  overflow: hidden;
}

.toc[data-collapsed="true"] .toc__list {
  display: none;
  margin-top: 0;
}

.toc__list a {
  display: block;
  font-size: var(--font-size-small);
  color: var(--color-text-body);
  padding-block: 0.15rem;
}

.toc__list a:hover,
.toc__list a:focus-visible {
  color: var(--color-heading-gold);
}