:root{color-scheme:dark;--bg:#0c0d10;--panel:#121419;--line:#424955;--ink:#e7e9ee;--muted:#adb4c0;--signal:#5eead4;--accent:#ff4d87;--on:#0c0d10}
:root[data-theme=light]{color-scheme:light;--bg:#edf0f4;--panel:#fff;--line:#b1bbc8;--ink:#1b1d23;--muted:#4d5461;--signal:#0b5f58;--accent:#a50f4d;--on:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 system-ui,-apple-system,sans-serif}main{max-width:1040px;margin:auto;padding:24px 30px 60px}button,input{font:inherit;color:inherit}button{border:1px solid var(--line);background:var(--panel);padding:10px 14px;border-radius:5px;cursor:pointer;min-height:44px;font-size:14px}button:hover{border-color:var(--signal)}:focus-visible{outline:2px solid var(--signal);outline-offset:4px}a{color:var(--signal);text-underline-offset:3px}.masthead{display:flex;justify-content:space-between;gap:15px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:20px}.logo{font:700 28px ui-monospace,monospace;letter-spacing:-2px}.logo span{color:var(--signal)}nav{display:flex;gap:12px;align-items:center;font-size:14px}h1{font-size:clamp(32px,5vw,48px);line-height:1.15;letter-spacing:-1px;margin:14px 0 20px}h2{font-size:25px;line-height:1.3;margin:0 0 20px}.flag{font:12px/1.7 ui-monospace,monospace;letter-spacing:1px;color:var(--signal);margin:32px 0 12px}.subtitle{max-width:780px;font-size:19px;color:var(--muted)}.instruction{font-size:14px;border-left:3px solid var(--signal);padding-left:15px;margin:24px 0}.grid-inputs{display:grid;grid-template-columns:1fr 1fr;gap:20px}fieldset{min-width:0;margin:0;border:1px solid var(--line);background:var(--panel);padding:18px 22px 22px;border-radius:5px}legend{padding:0 8px;font-weight:700}label{display:block;font-size:15px;line-height:1.5;margin-bottom:16px}label:last-child{margin-bottom:0}input{display:block;width:100%;min-height:48px;background:var(--bg);border:1px solid var(--line);border-radius:4px;padding:10px 12px;margin-top:8px;font-size:21px;font-variant-numeric:tabular-nums}.term{max-width:300px;margin:22px 0}.presets{margin:22px 0}.presets p{font-size:14px;margin:0 0 10px}.preset-buttons{display:flex;flex-wrap:wrap;gap:9px}.results{margin-top:36px;padding-top:28px;border-top:1px solid var(--line)}.result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.result-card{padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:5px}.result-card span{display:block;font-size:13px;color:var(--muted)}.result-card strong{display:block;font:700 clamp(24px,3vw,34px)/1.35 ui-monospace,monospace;font-variant-numeric:tabular-nums;margin:10px 0;color:var(--signal);overflow-wrap:anywhere}.result-card small{font-size:13px;color:var(--muted)}.interpretation{font-weight:650}.totals{display:grid;grid-template-columns:1fr 1fr;gap:12px;font-size:14px;color:var(--muted)}.totals strong{color:var(--ink)}.threshold{border-left:3px solid var(--signal);padding:14px 20px;margin:24px 0;background:var(--panel)}.threshold h3{font-size:16px;margin:0 0 8px}.threshold>strong{font:700 25px/1.4 ui-monospace,monospace;color:var(--signal)}.threshold p{font-size:14px;margin:10px 0 0}.sensitivity{font-size:15px}.error{padding:16px;border:1px solid var(--accent);color:var(--ink);margin:18px 0}.limits{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px;margin-top:25px}details{font-size:14px}summary{cursor:pointer;min-height:34px;font-weight:650}footer{font-size:13px;border-top:1px solid var(--line);margin-top:30px;padding-top:16px;color:var(--muted)}[hidden]{display:none!important}@media(max-width:650px){main{padding:18px 16px 40px}nav{flex-wrap:wrap;justify-content:flex-end;gap:8px;max-width:240px}.grid-inputs,.result-grid,.totals{grid-template-columns:1fr}fieldset{padding:14px 16px 18px}.result-card strong{font-size:29px}.result-card{padding:16px}.subtitle{font-size:17px}.preset-buttons button{flex:1 1 100%}.term{max-width:none}}@media print{nav,.presets{display:none}body{background:#fff;color:#111}:root{--bg:#fff;--panel:#fff;--line:#999;--ink:#111;--muted:#444;--signal:#165a50}main{padding:0;max-width:none}}