@font-face{font-family:Inter;src:url('assets/fonts/inter-variable.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:'Space Grotesk';src:url('assets/fonts/space-grotesk-bold.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url('assets/fonts/jetbrains-mono-regular.woff2') format('woff2');font-display:swap}
*{box-sizing:border-box}html{scroll-padding-top:88px;scrollbar-color:var(--boundary) var(--page)}body{margin:0;background:var(--reader-bg);color:var(--reader-fg);font:16px/1.65 Inter,sans-serif}::selection{background:var(--action);color:var(--page)}input{caret-color:var(--action)}a{color:var(--action);text-decoration-thickness:1px;text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input,select,summary{font:inherit}button,select,input{color:var(--control-fg);background:var(--control-bg);border:1px solid var(--control-border);border-radius:6px;min-height:36px;padding:7px 11px}button,select,summary{cursor:pointer}button:hover:not(:disabled){border-color:var(--control-focus)}button:disabled{cursor:default;color:var(--control-detail)}:focus-visible{outline:3px solid var(--control-focus);outline-offset:3px;box-shadow:0 0 0 3px var(--control-focus-gap)}h1,h2,h3{line-height:1.18;text-wrap:balance}h1,h2{font-family:'Space Grotesk',sans-serif}h1{font-size:clamp(2.5rem,5vw,4.25rem);letter-spacing:-.035em;margin:0 0 24px}h2{font-size:1.65rem;letter-spacing:-.02em;margin:48px 0 16px}h3{font-size:1.1rem;margin:28px 0 12px}p{margin:0 0 18px;max-width:70ch}ul,ol{padding-left:24px}li{margin:6px 0}code,pre{font-family:'JetBrains Mono',monospace;font-size:.85em}code{overflow-wrap:anywhere}pre{white-space:pre-wrap;overflow-wrap:anywhere;margin:16px 0 0}.skip{position:fixed;left:12px;top:-100px;z-index:10;padding:12px;background:var(--container)}.skip:focus{top:12px}.topbar{height:76px;position:sticky;top:0;z-index:3;background:var(--page);border-bottom:1px solid var(--boundary);display:flex;align-items:center;gap:24px;padding:0 32px}.brand{display:flex;align-items:center;gap:12px;color:var(--content);text-decoration:none;font-family:'Space Grotesk';font-size:24px}.topbar-title{color:var(--secondary)}.theme-label{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:13px}.theme-label select{padding:4px 8px;min-height:32px}.layout{display:grid;grid-template-columns:230px minmax(0,1fr) 170px;max-width:1536px;margin:auto;min-height:calc(100vh - 160px)}.rail{position:sticky;top:76px;align-self:start;height:calc(100vh - 76px);overflow:auto;padding:30px 20px;border-right:1px solid var(--boundary)}.rail details>summary{display:none}.rail label{font-size:13px;color:var(--secondary);display:block;margin:0 0 6px}.rail input{width:100%;font-size:13px}.rail #search-status{font-size:12px;margin:6px 0 24px;color:var(--secondary);min-height:20px}.rail nav h2{font-family:Inter;font-size:12px;font-weight:650;margin:22px 8px 6px;color:var(--secondary);letter-spacing:0}.rail nav a{display:block;color:var(--content);font-size:13px;text-decoration:none;padding:7px 9px;margin:2px 0;min-height:32px;border:1px solid transparent;border-radius:6px}.rail nav a[aria-current=page]{background:var(--container);border-color:var(--boundary);color:var(--action)}.rail nav a:hover{color:var(--action)}.rail-foot{font-size:12px;color:var(--secondary);margin:36px 8px 0}main{padding:60px clamp(24px,4vw,64px) 90px;min-width:0}main>article{max-width:76ch;margin:auto}.toc{position:sticky;top:76px;align-self:start;padding:60px 20px 24px 0}.toc p{font-size:12px;color:var(--secondary)}.toc a{font-size:12px;display:block;padding:6px 0;color:var(--secondary);text-decoration:none}.toc a:hover{color:var(--action)}.lead{font-size:1.2rem;line-height:1.6;max-width:58ch}.intro-art{display:block;width:100%;aspect-ratio:1672/941;object-fit:cover;border-radius:12px;margin:34px 0 10px}.caption{font-size:12px;color:var(--secondary)}.rule{margin:32px 0;border:0;border-top:1px solid var(--boundary)}.statement{font-family:'Space Grotesk';font-size:clamp(1.5rem,3vw,2.3rem);line-height:1.3;max-width:26ch;margin:30px 0}.evidence-note{background:var(--container);padding:18px 20px;border:1px solid var(--boundary);border-radius:12px;font-size:14px;margin:24px 0}.evidence-note p:last-child{margin:0}.scope{color:var(--secondary);font-size:13px}.component-list{list-style:none;padding:0}.component-list li{padding:16px 0;border-bottom:1px solid var(--boundary)}.component-list a{font-size:1.1rem}.component-list p{font-size:13px;color:var(--secondary);margin:6px 0 0}.status-chip{display:inline-block;border:1px solid var(--boundary);color:var(--secondary);border-radius:6px;font-size:12px;padding:2px 7px;margin-right:8px;vertical-align:middle}.states{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0}.states li{background:var(--container);border:1px solid var(--boundary);border-radius:6px;padding:4px 10px;font-size:13px;margin:0}.demo{margin:26px 0;background:var(--container);border:1px solid var(--boundary);border-radius:12px;padding:22px}.demo-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.demo-head p{margin:0;font-size:13px;color:var(--secondary)}.demo button{min-height:36px}.fixture-controls{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.fixture-controls label{font-size:13px;display:flex;gap:8px;align-items:center}.fixture-output{border-top:1px solid var(--boundary);padding-top:12px;margin-top:18px}.fixture-output summary{font-size:13px;color:var(--action)}.fixture-output pre{max-height:260px;overflow:auto}.fixture-summary{font-size:13px;color:var(--secondary);margin:14px 0 0}.surface-popup>h1{font-family:Inter;font-size:20px;letter-spacing:0;margin:0 0 8px}.surface-popup[data-mode=closed]{display:none}.surface-popup>p{font-size:13px}.surface-controls{display:flex;flex-direction:column;gap:6px}.surface-controls button{display:block;width:100%;text-align:left}.control-label{display:block;font-size:14px;overflow-wrap:anywhere}.control-detail{display:block;font-size:12px;color:var(--control-detail)}.control-detail:empty{display:none}.surface-bar{display:flex;gap:8px;flex-wrap:wrap;align-items:stretch}.surface-bar .surface-status{width:100%;font-size:12px;color:var(--secondary)}.surface-bar button{flex:1 1 100px;min-width:0}.window-preview{margin:0;background:var(--page);border-radius:6px;padding:16px;min-height:140px;display:flex;flex-direction:column;justify-content:center}.preview-image{width:100%;max-height:260px;object-fit:contain;display:block;margin-bottom:10px}.preview-title,.preview-state,.preview-fidelity{display:block}.preview-state{font-size:13px}.preview-fidelity{font-size:12px;color:var(--secondary)}.table-wrap{overflow:auto;max-width:100%}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left;margin:18px 0}th{font-weight:650;color:var(--content)}td,th{padding:12px 14px 12px 0;vertical-align:top;border-bottom:1px solid var(--boundary)}.swatch{display:inline-flex;align-items:center;gap:10px}.swatch i{display:inline-block;width:24px;height:24px;border:1px solid var(--boundary);border-radius:4px;background:var(--sample)}.stream{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}.stream span{padding:12px 16px;border:1px solid var(--boundary);border-radius:6px;font-size:13px}.stream span:nth-child(2){color:var(--action)}.proposed-field{display:grid;gap:6px;max-width:340px;margin:20px 0}.proposed-field small{color:var(--secondary)}.outcomes{display:grid;gap:10px}.outcomes p{margin:0;padding:12px 16px;border:1px solid var(--boundary);border-radius:6px}.outcome-pending{color:var(--status-pending)}.outcome-unknown{color:var(--status-unknown)}.outcome-refused{color:var(--status-refused)}footer{border-top:1px solid var(--boundary);max-width:1536px;margin:auto;padding:24px 32px;display:flex;gap:24px;flex-wrap:wrap;font-size:12px;color:var(--secondary)}footer a{margin-left:auto}footer a+a{margin-left:0}.empty{padding:20px 8px;font-size:13px}.logos{display:flex;align-items:center;gap:40px;flex-wrap:wrap;background:var(--container);padding:24px;border-radius:12px}.logos img{width:80px;height:80px}.logos .small{width:24px;height:24px}a,button,input,summary,select{touch-action:manipulation}
@media(min-width:1500px){.layout{grid-template-columns:250px minmax(0,1fr) 210px}}
@media(max-width:1100px){.layout{grid-template-columns:220px minmax(0,1fr)}.toc{display:none}main{padding:42px 32px 64px}.topbar{padding:0 24px}}
@media(max-width:720px){.topbar{height:auto;min-height:68px;padding:12px 16px;gap:12px;flex-wrap:wrap}.brand{font-size:21px}.topbar-title{display:none}.theme-label{font-size:12px}.layout{display:block}.rail{position:static;height:auto;border-right:0;border-bottom:1px solid var(--boundary);padding:14px 16px}.rail details>summary{display:list-item;padding:6px 0;font-size:14px}.rail details[open]>summary{margin-bottom:14px}.rail-foot{display:none}.rail nav{max-height:280px;overflow:auto}.rail #search-status{margin-bottom:12px}main{padding:32px 20px 60px}h1{font-size:2.5rem}h2{margin-top:36px}.demo{padding:16px}.demo-head{align-items:flex-start;flex-direction:column}.lead{font-size:1.06rem}.intro-art{margin-top:26px}footer{padding:20px;gap:12px}footer a{margin-left:0}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto;animation:none;transition:none}}
@media(forced-colors:active){:root,:root[data-theme=light]{--page:Canvas;--container:Canvas;--content:CanvasText;--secondary:CanvasText;--action:LinkText;--confirmed:CanvasText;--uncertain:CanvasText;--refused:CanvasText;--boundary:ButtonText;--focus:Highlight;--focus-gap:Canvas}:focus-visible{outline-color:Highlight;box-shadow:none}.status-chip,.states li{border-color:CanvasText}.swatch i{forced-color-adjust:none}.brand img{background:Canvas}.rail nav a[aria-current=page]{border-color:Highlight}}

main:focus{outline:none;box-shadow:none}main h2:focus{outline:none;box-shadow:none}
@media(max-width:720px){html{scroll-padding-top:128px}}
@media(forced-colors:active){button:disabled{color:GrayText;border-color:GrayText}.control-detail{color:inherit}}

.frozen-notice { padding: 12px 24px; background: #191516; color: #f6efe8; border-bottom: 2px solid #b02026; font: 16px/1.5 sans-serif; }
.frozen-notice a { color: #fca399; }