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.skip-link{position:fixed;z-index:200;top:8px;left:8px;background:#fff;padding:12px 18px;transform:translateY(-150%)}.skip-link:focus{transform:none}a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px}
.articles-hero{background:linear-gradient(180deg,var(--navy),var(--navy-2));padding:56px 0 60px;border-bottom:3px solid var(--gold)}.articles-hero h1{color:#fff;font-size:54px;margin:12px 0 18px}.articles-hero p{color:#e4eaf4;font-size:17px;line-height:1.75;max-width:660px;margin:0}.eyebrow{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-soft)}
.articles-list{padding:54px 0 72px}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.article-card{background:#fff;border:1px solid #e4dbce;border-top:3px solid var(--gold);border-radius:10px;padding:28px;display:flex;flex-direction:column}.article-card h2{font-size:31px;margin:18px 0 14px}.article-card h2 a:hover{color:#826615}.article-card p{line-height:1.75;font-size:15px;margin:0 0 24px;color:#4a5970}.article-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:12px;color:#53617a}.category{background:#eaf0f9;color:#173252;padding:6px 10px;border-radius:999px}.read-link{margin-top:auto;align-self:flex-start;font-size:14px;font-weight:600;padding:8px 0;border-bottom:2px solid var(--gold);color:var(--navy)}.article-help{margin-top:40px;border-left:3px solid var(--gold);padding:20px 24px;background:#eee9df;line-height:1.7}.article-help p{margin:0}.article-help a{font-weight:600;text-decoration:underline;text-underline-offset:3px}
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@media(max-width:600px){.articles-hero{padding:36px 0 40px}.articles-hero h1{font-size:40px}.articles-hero p{font-size:16px}.articles-list{padding:32px 0 44px}.article-main{padding:22px 0 40px}.article-paper{padding:24px 20px}.article-paper h1{font-size:36px}.article-description{font-size:16px}.article-body{font-size:16px;line-height:1.8}.article-body h2{font-size:29px}.article-toc{padding:16px}.article-working{padding:10px}.article-body math[display=block]{font-size:20px}.related-list{grid-template-columns:1fr}.article-help{padding:18px}.article-card{padding:24px}.breadcrumb{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}