/**
 * toc.css — Quick navigation (table of contents) block.
 */

.toc {
  padding-block: 24px;
}

.toc__panel {
  background: var(--color-card-bg);
  border-radius: var(--radius-input);
  padding: var(--space-card-padding);
}

.toc__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  color: var(--color-white);
  font-weight: var(--fw-semibold);
  font-size: 16px;
}

.toc__arrow {
  color: var(--color-heading-accent);
  transition: transform var(--transition-fast);
  font-size: 12px;
}

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

.toc__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(169, 185, 182, 0.15);
  counter-reset: toc-counter;
}

.toc__list[hidden] {
  display: none;
}

.toc__list li {
  counter-increment: toc-counter;
}

.toc__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 6px;
  font-size: var(--fs-small);
  color: var(--color-text-primary);
  border-radius: 8px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.toc__list a::before {
  content: counter(toc-counter) '.';
  color: var(--color-heading-accent);
  font-weight: var(--fw-semibold);
  flex-shrink: 0;
}

.toc__list a:hover {
  color: var(--color-heading-accent);
  background: var(--color-bg-dark);
}