:root{--background:#111027;--surface:#211b42;--text:#f8f3ff;--primary:#c5ff48;--accent:#ff5cbb;--muted:#c8bedd;--line:#786a98;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--text);font:16px/1.6 system-ui,sans-serif}a{color:inherit;text-underline-offset:4px}button,input,textarea{font:inherit}button{cursor:pointer;border:2px solid var(--line);background:var(--surface);color:var(--text);min-height:46px;padding:10px 14px;font-weight:700;border-radius:0}button:hover:not(:disabled){border-color:var(--primary)}button:disabled{opacity:.45;cursor:not-allowed}:focus-visible{outline:3px solid var(--primary);outline-offset:4px}header,main,footer{max-width:1240px;margin:auto}header{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}.brand{font:700 14px 'Courier New',monospace;text-decoration:none}.brand span{font-size:26px;color:var(--accent);margin-right:10px}.intro{display:flex;align-items:end;gap:60px;justify-content:space-between;padding:36px 0}.eyebrow,label,.sample-label{font:12px/1.5 'Courier New',monospace;letter-spacing:1px}.eyebrow{color:var(--primary);margin:0 0 12px}h1,h2{font-family:'Trebuchet MS',sans-serif;line-height:1.05;margin:0}h1{font-size:clamp(34px,4.5vw,58px);letter-spacing:-2px}h2{font-size:23px}.summary{max-width:455px;color:var(--muted);margin:0 0 4px}.workspace{display:grid;grid-template-columns:300px minmax(0,1fr);gap:32px;border:2px solid var(--line);box-shadow:6px 6px 0 var(--accent);background:var(--surface);padding:24px}.rail{border-right:1px solid var(--line);padding-right:24px}.rail h2{margin-bottom:20px}form p{font-size:13px;color:var(--muted)}label{display:block;margin:12px 0 8px}input{width:100%;min-width:0;background:var(--background);color:var(--text);border:2px solid var(--line);padding:12px;font:21px 'Courier New',monospace;border-radius:0}input[aria-invalid=true]{border-color:var(--accent)}.error{color:var(--accent);margin:4px 0 12px;font-size:13px}.error:empty{display:none}.primary{background:var(--primary);border-color:var(--primary);color:var(--background);display:flex;justify-content:space-between;margin-top:24px}form>button{width:100%;margin-bottom:12px}.minor{display:flex;gap:8px}.minor button{flex:1;font-size:12px;padding:8px}#status{font-size:14px;color:var(--muted)}.privacy{font:11px/1.8 'Courier New',monospace;color:var(--muted);margin-top:28px}.playfield{min-width:0}.scoreboard{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:20px}#result-title{font:clamp(54px,6vw,88px)/1 'Courier New',monospace;letter-spacing:-5px}.unit{font-size:24px;letter-spacing:0;color:var(--muted)}#pair-label{font:12px/1.8 'Courier New',monospace;max-width:150px;color:var(--muted)}.sample-frame{border:2px solid var(--line)}.sample-label{background:var(--background);padding:8px 12px;font-size:10px;color:var(--muted)}#sample{padding:24px;min-height:182px;overflow-wrap:anywhere;background:var(--background);color:var(--text)}#sample p{margin:0 0 12px}.large-sample{font:24px/1.3 system-ui,sans-serif}.regular-sample{font:16px/1.6 system-ui,sans-serif}.bold-sample{font:700 19px/1.4 system-ui,sans-serif}.sample-note,.rounding{font-size:12px;color:var(--muted);line-height:1.6}#luminances{font:12px/1.7 'Courier New',monospace;margin:18px 0}.decision{display:grid;grid-template-columns:1fr auto;gap:12px;border-top:1px solid var(--line);padding:10px 0;font-size:14px}.decision strong{color:var(--primary)}.decision.below strong{color:var(--accent)}.decision small{font:12px 'Courier New',monospace;color:var(--muted);margin-left:8px}.report-section{margin-top:48px}.report-heading{display:flex;justify-content:space-between;gap:20px;align-items:center}textarea{width:100%;background:var(--background);color:var(--text);border:1px solid var(--line);padding:16px;resize:vertical;font:13px/1.7 'Courier New',monospace;min-height:240px}.report-section>p,.limits p,details p{color:var(--muted);font-size:14px}.limits{display:grid;grid-template-columns:1fr 2fr;gap:12px 40px;margin:40px 0;padding:32px 0;border-block:1px solid var(--line)}.limits h2{grid-row:span 3}.limits p{margin:0}.faq{margin:32px 0 48px}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;font-weight:600}details p{max-width:850px}footer{display:flex;justify-content:space-between;gap:20px;padding:24px 0;border-top:1px solid var(--line);font:12px 'Courier New',monospace}.skip{position:absolute;top:-100px;background:var(--primary);color:var(--background);padding:12px;z-index:5}.skip:focus{top:8px}[hidden]{display:none!important}@media(max-width:1304px){header,main,footer{margin-inline:32px}}@media(max-width:950px){.workspace{grid-template-columns:250px minmax(0,1fr);gap:24px;padding:20px}.rail{padding-right:20px}.intro{gap:32px}.scoreboard{align-items:start;flex-direction:column;gap:0}#pair-label{max-width:none;margin:8px 0 0}.decision{font-size:13px}.decision small{display:block;margin:2px 0}}@media(max-width:700px){header,main,footer{margin-inline:20px}header{padding:18px 0}.brand{font-size:10px}.brand span{font-size:20px;margin-right:4px}header>a:last-child{font-size:13px}.intro{display:block;padding:28px 0}.summary{margin-top:20px}.workspace{grid-template-columns:1fr;padding:20px;gap:28px}.rail{border-right:0;border-bottom:1px solid var(--line);padding:0 0 20px}.privacy{margin-bottom:0}.scoreboard{flex-direction:row;align-items:end}#pair-label{max-width:110px;font-size:11px}.report-heading{align-items:start;flex-direction:column;gap:16px}.limits{grid-template-columns:1fr;gap:16px}.limits h2{grid-row:auto}.decision{font-size:13px}footer{flex-wrap:wrap}#sample{padding:20px}}@media(prefers-reduced-motion:no-preference){.pop{animation:pop .14s ease-out}@keyframes pop{from{transform:translateY(4px);opacity:.6}to{transform:none;opacity:1}}}
