.toc h1 {
  color: var(--color-blue-900);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: 0;
  line-height: var(--line-height-normal);
  position: absolute;
  top: calc(var(--frame) + var(--pad));
  left: calc(var(--frame) + var(--pad));
}

.toc .frame-content {
  justify-content: center;
  align-items: center;
  display: flex;
  flex-direction: column;
  position: relative;
  height: 100%;
}

.toc ol {
  list-style: none;
  counter-reset: toc;
  display: flex;
  flex-direction: column;
  gap: var(--toc-gap);
  align-items: stretch;
  padding: 0;
  margin: var(--toc-margin-top) 0 0;
  width: max-content;
  max-width: 100%;
}

.toc:has(ol li:nth-child(5)) ol {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  grid-template-rows: repeat(4, auto);
  row-gap: var(--toc-gap);
  column-gap: var(--toc-col-gap);
  align-items: start;
  width: max-content;
}

/* Hide TOC items after the 8th */
.toc ol li:nth-child(n + 9) {
  display: none;
}

.toc ol li {
  counter-increment: toc;
  display: flex;
  align-items: center;
  gap: var(--toc-item-gap);
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-blue-900);
  margin-left: 0;
  padding-left: 0;
  min-width: var(--toc-item-min-width);
  width: 100%;
  white-space: nowrap;
}

.toc ol li::before {
  content: counter(toc, decimal-leading-zero);
  background: var(--color-blue-900);
  color: var(--color-white);
  width: var(--toc-badge-w);
  height: var(--toc-badge-h);
  border-radius: var(--toc-badge-radius);
  display: grid;
  place-items: center;
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
}

.toc ol.toc-has-active > li {
  opacity: calc(100% / 3);
}

.toc ol.toc-has-active > li.toc-active {
  opacity: 1;
}