/* R25 engineering presentation. Existing form/runtime styles remain in place. */
:root{--seo-ink:#34413a;--seo-accent:#48614f;--seo-line:#d9e1dc;--seo-paper:#f4f6f5}
.seo-main{color:var(--seo-ink)}
.seo-hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:40px;align-items:center;margin:32px 0 48px}
.seo-hero>div:only-child{grid-column:1/-1;max-width:900px}
.seo-hero h1{font-size:clamp(2rem,3.5vw,3.7rem);line-height:1.1;letter-spacing:-.035em;max-width:18ch}
.seo-hero .lead{font-size:1.12rem;line-height:1.7;max-width:65ch}
.seo-figure{margin:0;background:white;border:1px solid var(--seo-line);padding:18px}
.seo-figure img{width:100%;height:auto;display:block;object-fit:contain;aspect-ratio:3/2}
.seo-figure figcaption,.product-gallery figcaption{font-size:.78rem;line-height:1.55;color:#52645a;margin-top:12px}
.seo-section{margin:48px 0}.seo-section h2{letter-spacing:-.025em}.seo-section>p,.seo-article>p{max-width:85ch;line-height:1.8}
.seo-cards{grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr))}
.seo-cards .r6-card{border:1px solid var(--seo-line);border-top:3px solid var(--seo-accent);box-shadow:none;border-radius:4px;background:white;padding:24px;min-width:0}
.seo-cards p{font-size:.95rem;line-height:1.7}.seo-link-list{columns:2;column-gap:32px}.seo-link-list li{break-inside:avoid;margin:10px 0}
.seo-source{border-top:1px solid var(--seo-line);padding-top:18px;font-size:.82rem;color:#52645a;line-height:1.6;margin:32px 0}
.seo-article{max-width:940px}.seo-article h1{font-size:clamp(2rem,3.5vw,3rem);line-height:1.15}.seo-article .lead{font-size:1.2rem;line-height:1.75}
.seo-steps li{padding:12px 8px;line-height:1.7;border-bottom:1px solid var(--seo-line)}
.seo-glossary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:28px 0}.seo-glossary article{padding:24px;border:1px solid var(--seo-line);background:var(--seo-paper)}
.seo-glossary article[hidden]{display:none}.seo-glossary h2{font-size:1.18rem}.seo-glossary p{line-height:1.65}
.seo-pagination{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.seo-pagination a,.seo-pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:1px solid var(--seo-line);padding:8px 12px;border-radius:3px}.seo-pagination [aria-current]{background:var(--seo-accent);color:white}
#seo-catalog-search,#seo-compare{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;background:var(--seo-paper);border:1px solid var(--seo-line);padding:22px;margin:24px 0}
#seo-catalog-search label,#seo-compare label{flex:1;min-width:min(100%,280px);display:grid;gap:8px}#seo-catalog-search input,#seo-compare input,.seo-search-label input{width:100%;min-height:48px;background:white;border:1px solid #81958a;border-radius:3px;padding:12px;font:inherit}
#seo-catalog-search .small{flex-basis:100%;margin:0}#catalog-search-results li{padding:12px;border-bottom:1px solid var(--seo-line)}
.seo-search-label{display:grid;gap:8px;max-width:650px;margin-top:24px}.seo-main .product-card{min-width:0}.seo-main .product-card h3{overflow-wrap:anywhere;font-size:1rem;line-height:1.55}.seo-main .product-image img{object-fit:contain;background:white;width:100%;height:auto;aspect-ratio:4/3}
.seo-main .product-gallery{margin:0}.seo-main .product-gallery>img{width:100%;height:auto;object-fit:contain}.seo-main .table-scroll{max-width:100%;overflow-x:auto}.seo-main table{width:100%;border-collapse:collapse}.seo-main th,.seo-main td{padding:14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--seo-line);line-height:1.6;overflow-wrap:anywhere}.seo-main th{background:var(--seo-paper)}
.rack-brand strong{letter-spacing:-.02em}.rack-brand small{font-size:.76rem}.site-header .header-inner{gap:18px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #557e61;outline-offset:3px}
.seo-alphabet{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}.seo-alphabet a{min-width:44px;min-height:44px;display:grid;place-items:center;border:1px solid var(--seo-line);background:var(--seo-paper)}
.seo-glossary{display:block}.seo-glossary>section{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:32px 0;scroll-margin-top:110px}.seo-glossary>section>h2{grid-column:1/-1;font-size:1.7rem}.seo-glossary h3{font-size:1.18rem;margin-top:0}.seo-process img{aspect-ratio:auto}
#section-picker{display:flex;align-items:end;gap:16px;flex-wrap:wrap;padding:24px;background:var(--seo-paper);border:1px solid var(--seo-line);margin:24px 0}#section-picker label{display:grid;gap:8px;flex:1 1 180px;min-width:0}#section-picker label:first-child{flex-basis:100%}#section-picker input,#section-picker select{width:100%;min-width:0;min-height:48px;background:white;border:1px solid #81958a;border-radius:3px;padding:12px;font:inherit}#section-picker select{font-size:.9rem}#section-picker-result{overflow-wrap:anywhere}.seo-specification{display:grid;grid-template-columns:minmax(130px,1fr) minmax(0,2fr);gap:1px;border:1px solid var(--seo-line)}.seo-specification dt,.seo-specification dd{margin:0;padding:12px;overflow-wrap:anywhere}.seo-specification dt{background:var(--seo-paper)}select:focus-visible{outline:3px solid #557e61;outline-offset:3px}
@media(max-width:900px){.seo-hero{gap:24px}.seo-link-list{columns:1}.seo-main .product-layout{grid-template-columns:minmax(0,1fr)}.site-header .header-inner{gap:10px}}
@media(max-width:759px){.seo-hero{grid-template-columns:minmax(0,1fr);margin-top:24px;gap:24px}.seo-hero h1{max-width:none}.seo-figure{padding:12px}.seo-glossary{grid-template-columns:minmax(0,1fr)}.seo-section{margin:32px 0}.seo-main th,.seo-main td{padding:10px;font-size:.9rem}.seo-main .breadcrumbs{display:flex;flex-wrap:wrap;overflow-wrap:anywhere}.seo-cards .r6-card{padding:20px}.seo-main .product-grid{grid-template-columns:minmax(0,1fr)}#seo-catalog-search,#seo-compare{padding:16px}.rack-brand img{width:40px;height:40px}.rack-brand strong{font-size:1.15rem}}
@media(max-width:600px){.seo-glossary>section{grid-template-columns:minmax(0,1fr)}#section-picker{padding:16px}.seo-specification{grid-template-columns:minmax(100px,1fr) minmax(0,1.8fr)}}