/* TOC (Table of Contents) — sticky em desktop */

.doc-toc {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
  align-self: start;
  padding: 1.1rem 1.25rem;
  background: var(--color-surface-muted);
  border: 1px solid rgba(103, 128, 151, 0.14);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
}

.doc-toc__title {
  margin: 0 0 var(--space-sm);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.doc-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
  border-left: 2px solid rgba(103, 128, 151, 0.18);
}

.doc-toc__item {
  padding: 0;
}

.doc-toc__item a {
  display: block;
  padding: 0.35rem 0.85rem;
  color: var(--color-ink-soft);
  border-left: 2px solid transparent;
  margin-left: -2px;
  font-weight: 600;
  line-height: 1.35;
  transition:
    color var(--transition-base),
    border-color var(--transition-base);
}

.doc-toc__item--h3 a {
  padding-left: 1.6rem;
  font-size: 0.88rem;
}

.doc-toc__item a:hover,
.doc-toc__item a:focus-visible,
.doc-toc__item a.is-active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

/* Heading anchor (#) */
.heading-anchor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  margin-left: 0.35rem;
  padding: 0;
  border: 0;
  border-radius: 0.4rem;
  background: transparent;
  color: var(--color-ink-soft);
  cursor: pointer;
  opacity: 0;
  transition:
    opacity var(--transition-base),
    background var(--transition-base);
}

h2:hover .heading-anchor,
h3:hover .heading-anchor,
.heading-anchor:focus-visible {
  opacity: 1;
}

.heading-anchor:hover {
  background: var(--color-accent-soft);
  color: var(--color-primary);
}

.heading-anchor.is-copied::after {
  content: "Copiado!";
  position: absolute;
  margin-left: 1.85rem;
  padding: 0.18rem 0.45rem;
  background: var(--color-ink);
  color: #fff;
  border-radius: 0.3rem;
  font-size: 0.72rem;
  white-space: nowrap;
}