/* Additive styles, used only on the two new concept pages. */
.concept-detail {
  margin: 26px 0;
  padding: 0 24px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold-light);
  background: var(--paper);
  scroll-margin-top: 24px;
}
.concept-detail > summary {
  padding: 20px 0;
  cursor: pointer;
  color: var(--ink);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  overflow-wrap: break-word;
  -webkit-hyphens: auto;
  hyphens: auto;
}
.concept-detail > summary::marker { color: var(--gold); }
.concept-detail[open] > summary {
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}
.article-copy .concept-detail h3 {
  font-size: 21px;
  line-height: 1.35;
  margin: 24px 0 10px;
}
.article-copy .concept-detail p { font-size: 16px; line-height: 1.75; }
.article-copy .study-source { font-size: 13px; color: var(--muted); overflow-wrap: anywhere; }
.article-copy .project-status { font-size: 14px; color: var(--muted); }
.concept-detail .detail-content { padding-bottom: 4px; }
.concept-return { display: flex; flex-wrap: wrap; gap: 8px 28px; margin-top: 30px; }
.concept-return a { min-height: 44px; display: inline-flex; align-items: center; font-size: 14px; }
@media (max-width: 600px) {
  .concept-detail { padding-inline: 18px; }
  .concept-detail > summary { font-size: 18px; }
  .article-copy .concept-detail h3 { font-size: 20px; }
}