.knowledge-shell { width: min(calc(100% - 2rem), var(--content)); min-height: 65vh; margin-inline: auto; padding-block: clamp(3.5rem, 7vw, 7rem); }
.knowledge-intro { max-width: 850px; margin-bottom: 3rem; }
.article-overview-controls { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .42fr); gap: 1.5rem; align-items: end; margin-bottom: 2rem; }
.article-overview-topics { min-width: 0; margin: 0; padding: 0; border: 0; }
.article-overview-topics legend, .article-overview-search label { display: block; margin-bottom: .65rem; font-weight: 750; }
.article-overview-topic-list { display: flex; flex-wrap: wrap; gap: .55rem; }
.article-overview-topic { min-height: 42px; padding: .45rem .8rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); background: var(--surface); cursor: pointer; }
.article-overview-topic.is-active { border-color: var(--brand); color: var(--ink); background: #fff3e8; }
.article-overview-search input { width: 100%; min-height: 48px; padding: .65rem .8rem; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: var(--surface); }
.article-overview-status { grid-column: 1 / -1; margin: 0; color: var(--ink-soft); font-size: .9rem; }
.knowledge-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-auto-rows: 1fr; gap: 1.2rem; }
.knowledge-card { display: block; min-width: 0; height: 100%; padding: 1.6rem; border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); background: var(--surface); box-shadow: 0 12px 35px rgba(16,42,67,.07); text-decoration: none; }
.knowledge-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.knowledge-card article { display: flex; flex-direction: column; height: 100%; }
.knowledge-card h2 { max-width: none; font-size: clamp(1.45rem, 2.4vw, 2rem); }
.knowledge-card p { color: var(--ink-soft); }
.knowledge-card-footer { display: grid; gap: .35rem; margin-top: auto; padding-top: 1.5rem; }
.knowledge-more { justify-self: start; color: var(--brand-dark); font-weight: 800; text-decoration: underline; text-decoration-thickness: .1em; text-underline-offset: .28em; }
.knowledge-published { color: var(--ink-soft); font-size: .82rem; }
.article-overview-more { display: block; margin: 2rem auto 0; min-height: 48px; padding: .6rem 1rem; border: 2px solid var(--ink); border-radius: 12px; color: #fff; background: var(--ink); cursor: pointer; }
.knowledge-empty { padding: 2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.knowledge-article { max-width: 850px; margin-inline: auto; }
.knowledge-article > h1 { max-width: 15ch; }
.article-meta { color: var(--ink-soft); }
.article-content { margin-top: clamp(2.5rem, 5vw, 4.5rem); }
.article-content h2 { max-width: 24ch; margin-top: 3rem; font-size: clamp(1.8rem, 3.2vw, 2.8rem); }
.article-content h3 { margin-top: 2rem; }
.article-content p, .article-content li { max-width: 75ch; }
.article-content pre { max-width: 100%; overflow-x: auto; padding: 1rem; border-radius: 14px; color: #fff; background: var(--ink); }
.article-content table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.article-content th, .article-content td { padding: .65rem; border: 1px solid var(--line); text-align: left; }
.article-content [align="right"] { text-align: right; }
.article-content [align="center"] { text-align: center; }
.article-references, .article-contact { margin-top: 3rem; padding: 1.5rem; border-radius: var(--radius); background: var(--surface-soft); }
.article-references h2, .article-contact h2 { font-size: 1.6rem; }
.article-contact .button { margin-top: 1rem; }
@media (max-width: 850px) { .article-overview-controls, .knowledge-grid { grid-template-columns: 1fr; } }