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

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

.toc__arrow {
  transition: transform var(--transition-base);
  flex-shrink: 0;
}
.toc__toggle[aria-expanded='true'] .toc__arrow { transform: rotate(180deg); }

.toc__list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 0;
  margin: 0;
  overflow: hidden;
  max-height: 0;
}
.toc[data-open='true'] .toc__list {
  max-height: none;
  margin-top: 1.1rem;
}

.toc__link {
  display: block;
  font-size: var(--fs-body);
  color: var(--color-text-primary);
  transition: color var(--transition-base);
}
.toc__link:hover { color: var(--color-heading-gold); }