@font-face{font-family:Inter;src:url('assets/fonts/inter-300.ttf') format('truetype');font-weight:300;font-display:swap}
@font-face{font-family:Inter;src:url('assets/fonts/inter-400.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url('assets/fonts/inter-500.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:Inter;src:url('assets/fonts/inter-600.ttf') format('truetype');font-weight:600;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url('assets/fonts/jetbrains-mono-400.ttf') format('truetype');font-weight:400;font-display:swap}
:root{color-scheme:dark;--bg:#0b1418;--surface:#101d22;--text:#f5f3ee;--muted:#a4afb4;--accent:#d58972;--brick:#a33b1a;--line:#2d3b42;--mono:'JetBrains Mono',monospace;--nav-height:70px}
*{box-sizing:border-box}
html{scroll-padding-top:0}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.8 Inter,Arial,sans-serif}
::selection{background:#e8e1d0;color:var(--bg)}
a{color:inherit;text-decoration:none}
a:hover{color:#fff}
a:focus-visible{outline:2px solid var(--text);outline-offset:5px}
.wrap{max-width:1392px;padding-inline:64px;margin-inline:auto}
.mono,h4{font-family:var(--mono);font-weight:400;letter-spacing:.1em;text-transform:uppercase}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:8px;left:16px;padding:8px 16px;background:var(--text);color:var(--bg);z-index:20;transform:translateY(-150%)}
.skip-link:focus{transform:none;color:var(--bg)}
.site-nav{position:fixed;inset:0 0 auto;z-index:10;background:var(--bg);border-bottom:1px solid var(--line)}
.nav-inner{height:var(--nav-height);display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-brand{font-size:17px;letter-spacing:.13em}
.nav-brand span,.hero h1 span{color:var(--brick)}
.nav-links{display:flex;align-items:center;gap:38px;color:var(--muted);font-size:11px}
.languages{display:flex;gap:12px}
.languages [aria-current]{color:var(--text);text-decoration:underline;text-underline-offset:7px}
.hero{display:grid;grid-template-columns:1fr 1.12fr;align-items:center;gap:60px;padding:140px 0 54px;scroll-margin-top:90px}
.hero h1{font-weight:300;font-size:clamp(80px,10.5vw,152px);line-height:.94;letter-spacing:-.065em;margin:0}
.hero h2{font-weight:400;font-size:clamp(21px,2.2vw,30px);line-height:1.35;letter-spacing:-.035em;margin:0 0 20px;max-width:27ch}
.hero-copy p{font-size:15px;line-height:1.85;color:var(--muted);margin:0;max-width:62ch}
.product-index{padding:22px 0 64px;border-top:1px solid var(--line);scroll-margin-top:90px}
.family-legend{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;font-size:10px;color:var(--muted);margin-bottom:20px}
.family-legend small{font:inherit;display:inline-block;margin-left:10px}
.selector{display:flex;height:320px;border-block:1px solid var(--line)}
.selector-panel{position:relative;min-width:48px;flex:1;overflow:hidden;border-left:1px solid var(--line);transition:flex .25s ease;background:var(--bg)}
.selector-panel:last-child{border-right:1px solid var(--line)}
.selector-panel.family-start{border-left-color:#6b797f}
.selector-panel.is-reading{flex:5;background:var(--surface)}
.panel-summary{position:absolute;inset:24px 24px auto;opacity:0;visibility:hidden}
.panel-family{display:block;font-size:10px;color:var(--muted);margin-bottom:20px}
.panel-name{display:block;font-size:34px;line-height:1.1;font-weight:500;letter-spacing:-.04em;margin-bottom:13px}
.panel-category{display:block;font-size:15px;line-height:1.5;color:var(--muted);margin-bottom:12px}
.panel-thesis{display:block;font-size:15px;line-height:1.6;color:var(--accent)}
.panel-spine{position:absolute;inset:22px 0 78px;writing-mode:vertical-rl;transform:rotate(180deg);display:flex;align-items:center;justify-content:center;font:11px var(--mono);letter-spacing:.18em;color:var(--muted)}
.panel-symbol{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);width:26px;height:35px;object-fit:contain;background:#e8e1d0;padding:2px}
.is-reading .panel-summary{opacity:1;visibility:visible}
.is-reading .panel-spine{opacity:0}
.is-reading .panel-symbol{left:24px;transform:none;width:36px;height:48px}
/* CSS-only expansion; the link always points to a complete static sheet. */
@media(min-width:900px){
 .selector:has(.selector-panel:hover,.selector-panel:focus-visible) .selector-panel{flex:1;background:var(--bg)}
 .selector:has(.selector-panel:hover,.selector-panel:focus-visible) .panel-summary{opacity:0;visibility:hidden}
 .selector:has(.selector-panel:hover,.selector-panel:focus-visible) .panel-spine{opacity:1}
 .selector:has(.selector-panel:hover,.selector-panel:focus-visible) .panel-symbol{left:50%;transform:translateX(-50%);width:26px;height:35px}
 .selector:not(:has(.selector-panel:focus-visible)) .selector-panel:hover,.selector .selector-panel:focus-visible{flex:5!important;background:var(--surface)!important}
 .selector:not(:has(.selector-panel:focus-visible)) .selector-panel:hover .panel-summary,.selector .selector-panel:focus-visible .panel-summary{opacity:1;visibility:visible}
 .selector:not(:has(.selector-panel:focus-visible)) .selector-panel:hover .panel-spine,.selector .selector-panel:focus-visible .panel-spine{opacity:0}
 .selector:not(:has(.selector-panel:focus-visible)) .selector-panel:hover .panel-symbol,.selector .selector-panel:focus-visible .panel-symbol{left:24px;transform:none;width:36px;height:48px}
 .selector-panel:focus-visible{outline-offset:-4px}
}
/* Compact product sheets; original editorial content remains complete. */
.product-sheet{border:1px solid var(--line);padding:26px 28px 20px;margin-bottom:24px;scroll-margin-top:90px;font-size:14px;line-height:1.55}
.product-header{display:grid;grid-template-columns:150px minmax(0,1fr) 78px;align-items:center;gap:24px;padding-bottom:20px;margin-bottom:16px;border-bottom:1px solid var(--line)}
.product-number{display:block;color:var(--muted);font-size:10px;margin-bottom:8px}
.product-identity h3{font-size:34px;line-height:1.1;letter-spacing:-.04em;font-weight:400;margin:0}
.product-symbol{width:78px;height:104px;object-fit:contain;padding:3px;background:#e8e1d0;justify-self:end}
.product-intro{min-width:0;max-width:70ch}
.category{font-size:10px;line-height:1.5;color:var(--muted);margin:0 0 8px;letter-spacing:.07em}
.thesis{font-size:18px;line-height:1.4;color:var(--accent);margin:0;max-width:58ch}
.content-block{display:grid;grid-template-columns:150px minmax(0,1fr);gap:24px;margin-top:16px}
.content-block h4{font-size:10px;line-height:1.5;color:var(--muted);margin:2px 0 0}
.prose{max-width:90ch;min-width:0;overflow-wrap:break-word}
.prose p{margin:0 0 8px;color:var(--muted)}
.prose p:last-child{margin-bottom:0}
.reference-box{background:var(--surface);padding:10px 12px;margin-top:8px;grid-template-columns:138px minmax(0,1fr);border-left:1px solid #65777f}
.reference-box .prose{font-size:12px;line-height:1.5}
.features{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 22px;font-size:12px;line-height:1.5}
.features li{color:var(--muted);padding:0 0 8px;margin:0;border-bottom:1px solid var(--line)}
.features strong{color:var(--text);font-weight:500}
.prose a{color:var(--text);text-decoration:underline;text-decoration-color:#65777f;text-underline-offset:4px}
.prose a:hover{text-decoration-color:var(--text)}
.sheet-end{margin-top:18px;display:flex;justify-content:flex-end;color:var(--muted);font-size:9px}
.site-footer{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;padding-block:24px;border-top:1px solid var(--line);font:11px var(--mono);color:var(--muted)}
@media(min-width:900px) and (max-width:1100px){.wrap{padding-inline:36px}.selector-panel{min-width:44px}.selector-panel.is-reading{flex:6}.selector:not(:has(.selector-panel:focus-visible)) .selector-panel:hover,.selector .selector-panel:focus-visible{flex:6!important}.panel-summary{inset:20px 18px auto}.panel-category,.panel-thesis{font-size:15px}.panel-family{margin-bottom:14px}.panel-name{font-size:30px}}
@media(max-width:899px){
 .wrap{padding-inline:32px}.hero{gap:32px;padding-top:116px}.hero h1{font-size:12vw}.hero h2{font-size:23px}
 .family-legend{display:none}.selector{display:block;height:auto;border-bottom:0}
 .selector-panel{display:block;min-width:0;overflow:visible;border:0;border-bottom:1px solid var(--line);padding:24px 60px 24px 0;background:none!important}
 .selector-panel:last-child{border-right:0}.selector-panel.family-start{border-top:1px solid #65777f;margin-top:16px}
 .panel-summary{position:static;opacity:1;visibility:visible;display:grid;grid-template-columns:120px 1fr;gap:7px 18px}
 .panel-family{grid-column:1/-1;font-size:10px;margin:0}.panel-name{grid-row:2/4;margin:0;font-size:26px}.panel-category{font-size:15px;margin:0}.panel-thesis{font-size:15px}
 .panel-spine{display:none}.selector .panel-symbol{left:auto;right:0;bottom:26px;transform:none;width:30px;height:40px}
 .product-sheet{padding:22px}.product-header{grid-template-columns:120px minmax(0,1fr) 66px;gap:18px}.product-symbol{width:66px;height:88px}.product-identity h3{font-size:29px}.content-block{grid-template-columns:110px minmax(0,1fr);gap:18px}.reference-box{grid-template-columns:98px minmax(0,1fr)}.features{grid-template-columns:1fr}

}
@media(max-width:580px){
 :root{--nav-height:60px}.wrap{padding-inline:20px}.nav-brand{font-size:14px}.nav-links{gap:18px;font-size:10px}.languages{gap:8px}
 .hero{grid-template-columns:1fr;gap:28px;padding-top:104px;padding-bottom:34px}.hero h1{font-size:25vw}.hero h2{font-size:24px;margin-bottom:16px}.hero-copy p{font-size:15px}
 .product-index{padding-bottom:42px}.panel-summary{grid-template-columns:1fr}.panel-name{grid-row:auto;font-size:28px;margin-top:4px}.selector-panel{padding-right:44px}.panel-symbol{top:30px}.panel-category,.panel-thesis{font-size:15px;line-height:1.75}
 .product-sheet{padding:18px 16px;font-size:14px;line-height:1.6}.product-header{grid-template-columns:minmax(0,1fr) 60px;gap:14px;margin-bottom:14px;padding-bottom:16px}.product-identity h3{font-size:30px}.product-intro{grid-column:1/-1;grid-row:2}.product-symbol{grid-column:2;grid-row:1;width:60px;height:80px}.thesis{font-size:17px}.content-block{grid-template-columns:1fr;gap:6px;margin-top:16px}.reference-box{padding:10px;margin-top:8px}.features{font-size:13px;gap:7px}.site-footer{font-size:10px;line-height:1.8}

}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}