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.eyebrow{color:var(--accent);font-size:.85rem;font-weight:750;letter-spacing:.14em;text-transform:uppercase;margin:0 0 10px} h1{font-size:clamp(1.9rem,3.5vw,3.25rem);line-height:1.25;letter-spacing:-.03em;margin:0 0 14px} .intro{max-width:800px;color:var(--muted);margin:0 0 30px}.workspace{display:grid;grid-template-columns:minmax(300px,440px) minmax(0,1fr);gap:28px;align-items:start}.panel{background:var(--paper);border:1px solid var(--line);padding:28px;border-radius:4px}.panel h2{margin:0 0 20px;font-size:1.2rem}.form-group{border:0;border-bottom:1px solid var(--line);padding:0 0 20px;margin:0 0 22px;min-width:0}.form-group legend{font-size:1rem;font-weight:750;padding:0 0 14px}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.fields.three{grid-template-columns:repeat(3,minmax(0,1fr))}label{display:flex;flex-direction:column;gap:6px;font-size:.88rem;font-weight:600}input,select{width:100%;min-width:0;padding:10px 11px;color:var(--ink);background:#fff;border:1px solid #8397a8;border-radius:3px}input[type=checkbox]{width:20px;height:20px}.check{flex-direction:row;align-items:center;gap:10px;margin-top:16px}.hint{font-size:.87rem;line-height:1.6;color:var(--muted);margin:12px 0 0}.actions{display:flex;gap:12px;flex-wrap:wrap}.primary,.secondary{padding:12px 20px;border-radius:3px;font-weight:650}.primary{color:white;border:1px solid var(--accent);background:var(--accent)}.secondary{background:white;color:var(--accent);border:1px solid var(--line)}.primary:hover{filter:brightness(.9)}.result{border-top:5px solid var(--accent);min-height:360px}.big{font-size:clamp(2.3rem,5vw,4rem);line-height:1.2;letter-spacing:-.04em;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums}.unit{font-size:1.1rem;letter-spacing:0;font-weight:500;margin-left:8px}.result-summary{font-size:1.1rem;font-weight:600;margin:14px 0 22px}.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stat span{display:block;color:var(--muted);font-size:.86rem}.stat strong{display:block;font-size:1.3rem;overflow-wrap:anywhere}.drawing{width:100%;display:block;margin:24px 0 10px;background:var(--wash);border:1px solid var(--line);max-height:340px}.diagram-label{font-size:.85rem;color:var(--muted);margin:0 0 20px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.9rem;margin:18px 0}th,td{text-align:left;border-bottom:1px solid var(--line);padding:10px 8px;white-space:nowrap}th{font-weight:650;color:var(--muted)}.error{border-left:4px solid #b22a32;background:#fff1f1;padding:15px;color:#892129}.hidden{display:none}.note{margin-top:22px;padding:18px;background:var(--wash);font-size:.93rem;border-left:3px solid var(--accent)}.guide-link{display:block;margin-top:24px;font-weight:650}.articles{margin-top:40px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}.articles article{border-top:2px solid var(--ink);padding-top:18px}.articles h2{font-size:1.2rem;margin:0 0 12px}.articles p{margin:0;color:var(--muted)}footer{max-width:1280px;margin:auto;padding:28px 32px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;font-size:.85rem;color:var(--muted)}footer div{display:flex;gap:20px;flex-wrap:wrap}.prose{max-width:800px}.prose h2{font-size:1.45rem;margin-top:36px}.prose p,.prose li{line-height:1.9}.prose li{margin-bottom:10px}.formula{border-left:4px solid var(--accent);padding:18px 22px;background:white;font-variant-numeric:tabular-nums}.skip{position:absolute;top:-100px;background:white;padding:12px;z-index:10}.skip:focus{top:0}.candidate{margin-top:18px;border:1px solid var(--line);padding:20px}.candidate:first-child{border-color:var(--accent)}.candidate .big{font-size:2.65rem}.bar{height:18px;background:var(--wash);margin:12px 0;overflow:hidden}.bar span{display:block;height:100%;background:var(--accent)}.live-label{font-size:.83rem;color:var(--muted);margin:0 0 10px}.privacy-choice{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:white;border-top:1px solid var(--line);padding:16px 32px;font-size:.85rem}.privacy-choice p{flex:1;min-width:220px;margin:0}.privacy-choice button{padding:8px 14px}.ad-space{border:1px dashed var(--line);padding:20px;text-align:center;color:var(--muted);font-size:.85rem;margin:32px 0} @media(max-width:800px){main{padding:28px 18px 45px}.nav{padding:16px 18px;flex-wrap:wrap;gap:12px}nav{gap:16px}.workspace{grid-template-columns:1fr;gap:20px}.panel{padding:22px}.articles{grid-template-columns:1fr}.result{min-height:0}footer{padding:24px 18px;flex-direction:column}.fields.three{gap:10px}.privacy-choice{padding:16px 18px}}@media(prefers-reduced-motion:no-preference){button{transition:filter .15s}}@media print{nav,.actions,.privacy-choice{display:none}.workspace{display:block}.panel{break-inside:avoid;margin:15px 0}body{background:white}main{padding:0}.drawing{max-height:250px}}