/* ==========================================================================
   Table of Contents block (BEM: toc)
   ========================================================================== */

.toc {
  padding-block: clamp(1.5rem, 3vw, 2rem);
}

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

.toc__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.toc__title {
  color: var(--color-heading-gold);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-h3);
}

.toc__arrow {
  color: var(--color-heading-gold);
  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: 0.6rem;
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-slow), margin-top var(--transition-slow);
  margin-top: 0;
}

.toc__list.is-open {
  max-height: 1200px;
  margin-top: 1.25rem;
}

.toc__list a {
  color: var(--color-text-main);
  transition: color var(--transition-base);
  display: inline-block;
}

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