.article-category-nav {
  position: sticky;
  inset-block-start: 0;
  z-index: 5;
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  padding: .85rem clamp(1rem, 4vw, 3.125rem);
  border-block-end: 1px solid var(--line);
  background: rgba(255, 255, 255, .96);
}
.article-category-nav a,
.article-category-nav button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: .55rem;
  padding: .55rem .85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: .82rem;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
}
.article-category-nav a span { color: var(--muted); font-size: .75rem; }
.article-category-nav [data-article-filter="home"] { display: none; }
.article-category-nav a:hover,
.article-category-nav button:hover,
.article-category-nav [aria-pressed="true"] { border-color: var(--primary); color: var(--primary); }
.article-categories { display: grid; gap: 3rem; }
.article-category { scroll-margin-block-start: 5rem; }
.article-category-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-block-end: 1.25rem; }
.article-category-heading h2 { font-size: 1.45rem; }
.article-category-heading span { color: var(--muted); font-size: .85rem; white-space: nowrap; }
.source-article-card { position: relative; }
.source-article-card h2 { min-height: 0 !important; }
.source-article-card .badge {
  position: absolute;
  inset-block-start: .75rem;
  inset-inline-start: .75rem;
  z-index: 1;
  max-width: calc(100% - 1.5rem);
  margin: 0;
  padding: .65rem 1rem;
  border-radius: .4rem;
  background: #f5f1ed;
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(24, 20, 18, .12);
}
.disease-grid .source-article-card img { height: 15rem; }
.source-article .page-hero h1 { max-width: 58rem; }
.article-metadata { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; margin-block-start: 1rem; color: var(--muted); font-size: .85rem; }
.article-metadata .badge { margin: 0; text-decoration: none; }
.article-featured-image { display: block; width: min(100% - 3rem, 52rem); max-height: 34rem; margin: 2rem auto; object-fit: contain; }
.source-article-body { width: min(100% - 3rem, 52rem); margin-inline: auto; color: var(--ink); font-size: 1rem; line-height: 2; overflow-wrap: anywhere; }
.source-article-body p { margin-block: 0 1.15rem; }
.source-article-body h2, .source-article-body h3, .source-article-body h4 { margin-block: 1.8rem .7rem; color: var(--ink); line-height: 1.6; }
.source-article-body ul, .source-article-body ol { margin-block: .75rem 1.25rem; padding-inline-start: 1.6rem; }
.source-article-body li { margin-block: .25rem; padding-inline-start: .15rem; }
.source-article-body img { max-width: 100%; height: auto; }
.source-article-body figure { max-width: 100%; margin: 1.5rem auto; }
.source-article-body figcaption { color: var(--muted); font-size: .85rem; text-align: center; }
.source-article-body table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.source-article-body td, .source-article-body th { padding: .5rem; border: 1px solid var(--line); }
.article-share { width: min(100% - 3rem, 70rem); margin: 2rem auto 3rem; padding-block: 1rem; border-block-start: 1px solid var(--line); }
.article-share h2 { margin-block-end: 1.5rem; color: var(--ink); font-size: 1rem; font-weight: 700; text-align: right; }
.article-share-actions { display: flex; align-items: center; justify-content: flex-start; gap: .4rem; flex-wrap: wrap; direction: rtl; }
.article-share-button { display: inline-flex; min-height: 2.6rem; align-items: center; justify-content: center; gap: .5rem; padding: .45rem .8rem; border: 0; border-radius: 4px; color: #fff; font-size: .85rem; font-weight: 700; line-height: 1; text-decoration: none; cursor: pointer; }
.article-share-button span { display: inline-flex; width: 1.1rem; height: 1.1rem; align-items: center; justify-content: center; }
.article-share-button svg { width: 100%; height: 100%; fill: currentColor; stroke: currentColor; stroke-width: 1.3; }
.share-twitter { background: #1da1f2; }
.share-facebook { background: #1877f2; }
.share-linkedin { background: #0a66c2; }
.share-email { background: #777; }
.share-whatsapp { background: #20c968; }
.share-telegram { background: #2aabee; }
.share-print { background: #789397; font-family: inherit; }
.article-share-button:hover { filter: brightness(.92); }
@media print { .article-share { display: none; } }
@media (max-width: 760px) {
  .article-categories .disease-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .85rem; }
  .article-categories .disease-card > div { padding: 1rem; }
  .article-categories .disease-card img { height: 9rem; }
  .article-category-heading h2 { font-size: 1.2rem; }
}
@media (max-width: 520px) {
  .article-categories .disease-grid { grid-template-columns: 1fr; }
}