.knowledge-hero { padding-block: 4.5rem 6rem; }
.knowledge-hero h1 { max-width: 950px; }
.knowledge-hero .hero-lead { max-width: 650px; }
.article-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; margin-block: 2.5rem; }
.article-card { min-width: 0; overflow-wrap: anywhere; border-top: 1px solid var(--border); padding-top: 1.5rem; }
.article-card h3 { font-family: var(--serif); font-size: clamp(1.5rem, 2.1vw, 2rem); line-height: 1.1; }
.article-card > p:not(.eyebrow) { color: var(--text-secondary); line-height: 1.6; }
.article-card img { display: block; width: 100%; height: auto; margin-bottom: 1.5rem; }
.article-meta { color: var(--text-secondary); font-size: .85rem; line-height: 1.7; }
.article-meta span { padding-inline: .3rem; }
.article-list h2, .article-collection h2 { font-size: clamp(2.4rem, 4vw, 3.5rem); }
.article-empty { color: var(--text-secondary); margin: 2rem 0 0; line-height: 1.6; }
.article-header { padding-block: 4rem 1.5rem; }
.article-divider { border: 0; border-top: 1px solid var(--border); margin: 0 0 1.5rem; }
.article-header h1 { max-width: 1000px; font-size: clamp(2.6rem, 5.8vw, 5.5rem); line-height: 1.02; overflow-wrap: anywhere; }
.article-header .hero-lead { max-width: 720px; }
.article-back { display: inline-block; color: var(--text-secondary); margin-bottom: 2rem; }
.article-header > img { display: block; width: 100%; max-width: 850px; height: auto; margin-top: 2rem; }
.article-body, .article-references { max-width: 720px; margin-inline: auto; overflow-wrap: anywhere; }
.article-body { font-size: 1.08rem; line-height: 1.75; }
.article-body p, .article-body ul, .article-body ol, .article-body blockquote { margin-bottom: 1.5rem; }
.article-body h2 { font-size: clamp(2rem, 3vw, 2.8rem); line-height: 1.1; margin-block: 3rem 1.3rem; }
.article-body h3 { font-size: 1.45rem; margin-block: 2.5rem 1rem; }
.article-body h4 { font-size: 1.15rem; margin-block: 2rem 1rem; }
.article-body li { margin-block: .5rem; }
.article-body blockquote { border-left: 2px solid var(--accent-text); padding-left: 1.5rem; margin-left: 0; color: var(--text-secondary); }
.article-body img { max-width: 100%; height: auto; display: block; }
.article-body picture { display: block; }
.article-body pre { max-width: 100%; overflow-x: auto; background: var(--surface); padding: 1.25rem; font-size: .85rem; }
.article-body code { font-family: var(--mono); }
.article-body :not(pre) > code { background: var(--surface-elevated); padding: .15rem .3rem; font-size: .85em; }
.article-table { max-width: 100%; overflow-x: auto; margin-block: 1.5rem; }
.article-table table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.article-table th, .article-table td { text-align: left; border-bottom: 1px solid var(--border); padding: .75rem; }
.article-table th { color: var(--text-primary); background: var(--surface); }
.article-table .article-align-center { text-align: center; }
.article-table .article-align-right { text-align: right; }
.article-references { padding-block: 3rem; border-top: 1px solid var(--border); margin-top: 3rem; font-size: .94rem; line-height: 1.65; }
.article-references h2 { font-size: 2.5rem; margin-bottom: 1.5rem; }
.article-references ol { padding-left: 1.5rem; }
.article-references li { margin-bottom: 1rem; }
.article-coaching { max-width: 720px; margin-inline: auto; }
.article-coaching h2 { font-size: clamp(2.4rem, 4vw, 3.5rem); }
.article-coaching p { color: var(--text-secondary); line-height: 1.6; margin-block: 1.5rem 2rem; }
.article-body [id], .article-references [id] { scroll-margin-top: 2rem; }
.article-body a, .article-references a, .article-back { text-decoration: underline; text-underline-offset: .2em; }
.article-card a:hover, .article-body a:hover, .article-references a:hover, .article-back:hover { color: var(--accent-text); }
.article-card a:focus-visible, .article-body a:focus-visible, .article-references a:focus-visible, .article-back:focus-visible, .article-table:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 4px; }

@media (min-width: 761px) and (max-width: 1024px) {
  .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .article-grid { grid-template-columns: 1fr; }
  .knowledge-hero { padding-block: 3rem 4rem; }
  .article-header { padding-block: 3rem 1rem; }
  .article-divider { margin-bottom: 1rem; }
}