:root{--color-bg:#fff;--color-text:#1a1a1a;--color-muted:#5a5a5a;--color-border:#e2e2e2;--color-accent:#1a5fb4;--color-accent-contrast:#fff;--color-surface:#f7f7f8;--color-navy:#0a1f44;--space-1:.25rem;--space-2:.5rem;--space-3:1rem;--space-4:1.5rem;--space-5:2.5rem;--space-6:4rem;--font-sans:system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--max-width:72rem}*{box-sizing:border-box}html{color-scheme:light}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);margin:0;line-height:1.6}.wrap{max-width:var(--max-width);padding-inline:var(--space-3);margin-inline:auto}.skip-link{background:var(--color-accent);color:var(--color-accent-contrast);padding:var(--space-2) var(--space-3);z-index:100;position:absolute;top:0;left:-9999px}.skip-link:focus{left:var(--space-2);top:var(--space-2)}a{color:var(--color-accent)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid 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var(--color-border);margin-top:var(--space-6);color:var(--color-muted);font-size:.9rem}.site-footer__inner{gap:var(--space-2);padding-block:var(--space-4);flex-direction:column;display:flex}.site-footer__nav{gap:var(--space-3);margin:0;padding:0;list-style:none;display:flex}.hero{background:var(--color-surface);padding-block:var(--space-6) var(--space-5);border-bottom:1px solid var(--color-border)}.hero h1{max-width:40ch;font-size:clamp(1.75rem,4vw,2.5rem)}.hero__subtitle{max-width:60ch;color:var(--color-muted)}.search-box{max-width:40rem;margin-top:var(--space-4);position:relative}.search-box__label{margin-bottom:var(--space-2);font-weight:600;display:block}.search-box__input{width:100%;padding:var(--space-3);border:1px solid var(--color-border);border-radius:.5rem;font-size:1rem}.search-box__results{z-index:10;margin:var(--space-1) 0 0;background:var(--color-bg);border:1px solid var(--color-border);border-radius:.5rem;max-height:24rem;padding:0;list-style:none;position:absolute;top:100%;left:0;right:0;overflow-y:auto;box-shadow:0 4px 12px #00000014}.search-box__results li a{padding:var(--space-3);color:var(--color-text);border-bottom:1px solid var(--color-border);text-decoration:none;display:block}.search-box__results li:last-child a{border-bottom:none}.search-box__results li a:hover,.search-box__results li a:focus-visible{background:var(--color-surface)}.search-box__result-title{font-weight:600;display:block}.search-box__result-summary{color:var(--color-muted);font-size:.9rem;display:block}.category-grid{gap:var(--space-3);margin-block:var(--space-4);grid-template-columns:1fr;display:grid}@media (width>=640px){.category-grid{grid-template-columns:repeat(2,1fr)}}@media (width>=960px){.category-grid{grid-template-columns:repeat(3,1fr)}}.category-card{border:1px solid var(--color-border);border-top:4px solid 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var(--badge-color,var(--color-accent));margin-bottom:var(--space-2);border-radius:999px;padding:.125rem .5rem;font-size:.75rem;font-weight:600;display:inline-block}.code-card__title{margin:0 0 var(--space-1)}.code-card__summary{color:var(--color-muted);margin:0;font-size:.9rem}.code-page{max-width:70ch;padding-block:var(--space-4) var(--space-6)}.code-page__answer{border-left:4px solid var(--color-accent);background:var(--color-surface);padding:var(--space-3);border-radius:0 .5rem .5rem 0;font-size:1.15rem}.scheme-table{border-collapse:collapse;width:100%;margin-block:var(--space-3)}.scheme-table th,.scheme-table td{text-align:left;padding:var(--space-2);border-bottom:1px solid var(--color-border)}.breadcrumbs ol{gap:var(--space-1);margin:var(--space-3) 0;color:var(--color-muted);flex-wrap:wrap;padding:0;font-size:.9rem;list-style:none;display:flex}.breadcrumbs li:not(:last-child):after{content:"›";margin-left:var(--space-1)}.faq{margin-block:var(--space-5)}.faq__item{margin-bottom:var(--space-4)}.faq__item h3{margin-bottom:var(--space-1)}.cta{background:var(--color-surface);padding:var(--space-4);margin-block:var(--space-5);border-radius:.5rem}.cta__links{gap:var(--space-3);flex-wrap:wrap;display:flex}.glossary-list{margin:var(--space-4) 0;padding:0;list-style:none}.glossary-list li{padding:var(--space-2) 0;border-bottom:1px solid var(--color-border);gap:var(--space-1);flex-direction:column;display:flex}.glossary-list__summary{color:var(--color-muted);font-size:.9rem}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}