.breadcrumbs {
  position: relative;
  z-index: 2;
  padding-block: .85rem;
  border-bottom: 1px solid color-mix(in srgb, currentColor 10%, transparent);
  font-size: .82rem;
  color: var(--muted, #6d6a64);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: .45rem;
  opacity: .45;
}

.breadcrumbs a {
  color: inherit;
  text-decoration: none;
}

.breadcrumbs a:hover { color: currentColor; text-decoration: underline; }

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem 1.2rem;
  margin: 1.25rem 0 0;
  font-size: .86rem;
  color: var(--muted, #6d6a64);
}

.article-meta span + span { position: relative; }

.content-provenance {
  border-top: 1px solid color-mix(in srgb, currentColor 10%, transparent);
  background: color-mix(in srgb, var(--paper, #f8f5ef) 84%, #fff);
}

.content-provenance__inner {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem 1.5rem;
  align-items: center;
  padding-block: 1rem;
  font-size: .86rem;
  color: var(--muted, #6d6a64);
}

.content-provenance p { margin: 0; }

.author-box {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid color-mix(in srgb, currentColor 14%, transparent);
  background: color-mix(in srgb, var(--paper, #f8f5ef) 88%, #fff);
}

.author-box h2 {
  margin-top: 0;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.guide-group:nth-of-type(even) {
  background: color-mix(in srgb, var(--paper, #f8f5ef) 86%, #fff);
}

.guide-card ul,
.guide-card ol {
  padding-left: 1.25rem;
}

.prose table {
  display: block;
  width: 100%;
  overflow-x: auto;
}

@media (max-width: 640px) {
  .breadcrumbs { padding-block: .7rem; }
  .article-meta,
  .content-provenance__inner {
    display: grid;
    gap: .3rem;
  }
}