.doc-page {
  padding: 2rem 0 4rem;
}

.doc-breadcrumb {
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.doc-breadcrumb a {
  color: var(--color-muted);
}

.doc-breadcrumb a:hover {
  color: var(--color-heading);
}

.doc-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 1280px) {
  .doc-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 4rem;
  }

  .doc-toc {
    order: 2;
    position: sticky;
    top: 5rem;
    flex: 0 0 18rem;
  }

  .doc-content {
    order: 1;
    flex: 1;
    min-width: 0;
  }
}

.doc-content h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-heading);
}

.doc-lead {
  margin: 0 0 2rem;
  font-size: 1.125rem;
  color: var(--color-body);
}

.doc-content h2 {
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-heading);
  scroll-margin-top: 5rem;
}

.doc-content h2:first-of-type {
  margin-top: 0;
}

.doc-content p,
.doc-content li {
  line-height: 1.7;
  color: var(--color-body);
}

.doc-content ul,
.doc-content ol {
  margin: 0.75rem 0 1rem;
  padding-left: 1.5rem;
}

.doc-content li {
  margin-bottom: 0.5rem;
}

.doc-content a {
  color: #2563eb;
  text-decoration: underline;
}

.doc-content a:hover {
  color: #1d4ed8;
}

.doc-toc-title {
  margin: 0 0 1rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9ca3af;
}

.doc-toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 2px solid transparent;
}

.doc-toc-list a {
  display: block;
  padding: 0.35rem 0 0.35rem 1rem;
  font-size: 0.9375rem;
  color: var(--color-muted);
  border-left: 2px solid transparent;
  margin-left: -2px;
}

.doc-toc-list a:hover {
  color: var(--color-heading);
}

.doc-toc-list a.is-active {
  color: var(--color-heading);
  font-weight: 600;
  border-left-color: var(--color-heading);
}