/* Flagship articles: article page, index and homepage cards (docs/article-format.md) */
.article-page{max-width:1200px;margin:0 auto;padding:40px 24px 96px}
.article{max-width:760px;margin:0 auto}
.article-breadcrumb{max-width:760px;margin:0 auto 32px;font-size:15px;color:var(--ink-2)}
.article-breadcrumb a{text-decoration:none}
.article-breadcrumb a:hover{text-decoration:underline}
.article-header{margin-bottom:40px;padding-bottom:32px;border-block-end:1px solid var(--line)}
.article-header h1{font-size:clamp(32px,4.5vw,44px);line-height:1.2;margin:0 0 20px}
.article-standfirst{font-size:21px;line-height:1.7;color:var(--ink-2);margin:0 0 20px}
.article-byline{font-size:15px;color:var(--ink-2);margin:0}
.article-body{font-size:19px;line-height:1.8}
.article-body h2{font-size:29px;line-height:1.3;margin:48px 0 18px;scroll-margin-top:24px}
.article-body h3{font-size:23px;margin:36px 0 14px}
.article-body p{margin:0 0 20px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-inline-start:24px}
.article-body li{margin-bottom:10px}
.article-takeaways{background:var(--surface);border:1px solid var(--line);border-inline-start:4px solid var(--accent);border-radius:var(--r);padding:24px 28px;margin:32px 0}
.article-takeaways h3{margin:0 0 12px;font-size:20px}
.article-takeaways ul{margin:0}
.article-takeaways li:last-child{margin-bottom:0}
.cite{font-size:.75em;line-height:0}
.cite a{text-decoration:none}
.cite a:hover{text-decoration:underline}
.article-figure{margin:32px 0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.article-figure img{display:block;width:100%;height:auto;border-radius:6px}
.article-figure figcaption{margin-top:12px;font-size:15px;color:var(--ink-2)}
.article-body .wide-scroll{margin:24px 0 28px;background:var(--surface)}
.article-steps li{margin-bottom:14px}
.article-skip{font-size:16px}
.article-check{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;margin:48px 0}
.article-check>h2{margin-top:0}
.check-item{border:1px solid var(--line);border-radius:var(--r);background:var(--surface-3);padding:20px;margin:0 0 24px;min-inline-size:0}
.check-item:last-of-type{margin-bottom:0}
.check-item legend{font-weight:700;font-size:19px;padding:0 8px}
.check-item p{margin:0 0 14px}
.check-option{display:flex;align-items:flex-start;gap:12px;padding:10px 14px;border:1px solid var(--line);border-radius:8px;margin:8px 0;background:var(--surface);cursor:pointer;min-height:44px;font-weight:400}
.check-option:has(input:checked){background:var(--accent-soft);border-color:var(--accent)}
.check-option input{margin-top:5px}
.check-submit{margin-top:8px}
.check-result{margin-top:16px;padding:16px 20px;border-radius:8px;font-size:17px}
.check-result p{margin:0}
.check-result.correct{background:var(--ok-soft)}
.check-result.incorrect{background:var(--warn-soft)}
.article-about{margin-top:56px;padding-top:28px;border-block-start:1px solid var(--line);font-size:16px;color:var(--ink-2)}
.article-about h2{font-size:22px;margin:0 0 12px}
.article-sources{margin-top:40px;font-size:16px}
.article-sources h2{font-size:22px;margin:0 0 12px}
.article-sources ol{padding-inline-start:24px;margin:0}
.article-sources li{margin-bottom:14px;color:var(--ink-2)}
.article-sources a{overflow-wrap:anywhere}
.article-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.articles-index .article-card-grid{grid-template-columns:repeat(3,1fr)}
@media(max-width:1100px){.articles-index .article-card-grid{grid-template-columns:repeat(2,1fr)}}
.article-card{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:border-color .15s ease}
.article-card-thumb{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line);background:var(--surface-2)}
.article-card-body{display:flex;flex-direction:column;flex:1;padding:20px 20px 22px}
.article-card:hover{border-color:var(--accent)}
.article-card-meta{font-size:14px;color:var(--accent);font-weight:700;margin:0 0 12px}
.article-card h3{font-size:24px;line-height:1.3;margin:0 0 12px}
.article-card h3 a{color:inherit;text-decoration:none}
.article-card h3 a::after{content:"";position:absolute;inset:0}
.article-card:hover h3 a{color:var(--accent)}
.article-card h3 a:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:2px}
.article-card-hook{color:var(--ink-2);margin:0 0 16px;font-size:17px;line-height:1.65}
.article-card-more{margin-top:auto;font-weight:600;font-size:15px;color:var(--accent)}
.articles-index{max-width:1200px;margin:0 auto;padding:56px 24px 96px}
.articles-index-header{max-width:700px;margin-bottom:48px}
.articles-index-header h1{font-size:clamp(40px,5vw,56px);line-height:1.1;margin:0 0 16px}
.articles-index-lead{font-size:21px;line-height:1.7;color:var(--ink-2);margin:0}
.articles-empty{padding:32px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);color:var(--ink-2);text-align:center}
.home-articles{padding:72px 0;border-block-start:1px solid var(--line)}
@media(max-width:1023px){.articles-index{padding-top:40px}}
@media(max-width:767px){.article-page{padding:24px 16px 64px}.article-header{margin-bottom:32px;padding-bottom:24px}.article-header h1{font-size:30px}.article-standfirst{font-size:18px}.article-body{font-size:18px;line-height:1.75}.article-body h2{font-size:25px;margin:40px 0 14px}.article-body h3{font-size:21px;margin:28px 0 12px}.article-check{padding:20px}.check-item{padding:16px}.article-card-grid{grid-template-columns:1fr;gap:16px}.article-card-body{padding:18px}.articles-index{padding:32px 16px 64px}.articles-index-header{margin-bottom:32px}.home-articles{padding:48px 0}}
.chain-diagram{list-style:none;display:flex;flex-direction:column;gap:10px;padding:0;margin:8px auto 4px;max-width:460px;counter-reset:chain}
.chain-diagram li{position:relative;display:flex;flex-direction:row;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:12px 18px;text-align:start;font-weight:600;font-size:17px;counter-increment:chain}
.chain-diagram li::before{content:counter(chain);display:flex;align-items:center;justify-content:center;width:26px;height:26px;flex:none;border:1px solid var(--line);border-radius:50%;font-size:13px;font-weight:700;color:var(--accent);line-height:1}
.chain-diagram li:not(:last-child)::after{content:'↓';position:absolute;inset-inline-start:28px;top:100%;color:var(--accent);font-weight:700;font-size:15px;line-height:10px}