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#8c9691;--line: #2b3531;--brand: #4cc7a2;--brand-ink: #0b1411;--brand-soft: #173029;--accent: #fb923c;--good: #4cc7a2;--warn: #fdba74;--shadow: none;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--font-body);-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto}a{color:var(--brand);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}h1,h2,h3{font-family:var(--font-head);line-height:1.2;letter-spacing:-.01em;color:var(--ink)}h1{font-size:clamp(2rem,4.5vw,2.9rem);margin:0 0 .6rem}h2{font-size:1.6rem;margin:2.4rem 0 .8rem}h3{font-size:1.2rem;margin:1.8rem 0 .5rem}p{margin:0 0 1.1rem}:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:4px}.container{max-width:var(--max);margin:0 auto;padding:0 16px}.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;background:var(--surface);padding:8px 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6px;border-radius:6px;font-size:.92em}.prose strong{color:var(--ink)}.calc{padding:24px}.calc h2{margin-top:0}.calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px}.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px;color:var(--ink-2)}.field input,.field select{width:100%;font:inherit;font-size:1rem;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink)}.field input:focus,.field select:focus{outline:2px solid var(--brand);border-color:var(--brand)}.field .hint{font-size:.8rem;color:var(--ink-3);margin-top:4px}.results{margin-top:22px;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.result{background:var(--surface-2);border-radius:12px;padding:14px 16px}.result .label{font-size:.82rem;color:var(--ink-3);font-weight:600}.result 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