:root{--bg: #f7f6f2;--card: #ffffff;--ink: #1c2320;--muted: #5d6b64;--brand: #0c4d3c;--brand-2: #14805f;--accent: #f2b705;--line: #e3e1da;--ok: #0c7a43}@media(prefers-color-scheme:dark){:root{--bg:#101513;--card:#182019;--ink:#e8ebe6;--muted:#9aa89f;--line:#2a352d}}*{box-sizing:border-box}body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink)}a{color:var(--brand-2)}header.site{border-bottom:1px solid var(--line);background:var(--card)}.site-inner{max-width:1040px;margin:0 auto;padding:14px 16px;display:flex;align-items:center;gap:10px}.logo{font-weight:800;font-size:20px;color:var(--ink);text-decoration:none;letter-spacing:-.4px}.logo b{color:var(--brand-2)}.tagline{color:var(--muted);font-size:13px;margin-left:auto;text-align:right}main{max-width:1040px;margin:0 auto;padding:20px 16px 48px}h1{font-size:clamp(24px,4.5vw,34px);margin:8px 0 4px;letter-spacing:-.5px}.updated{color:var(--muted);font-size:13px;margin:0 0 18px}.layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;align-items:start}@media(max-width:760px){.layout{grid-template-columns:1fr}}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}.field{margin-bottom:14px}.field label{display:block;font-size:14px;font-weight:600;margin-bottom:5px}.input-wrap{position:relative}.input-wrap .prefix,.input-wrap .suffix{position:absolute;top:50%;transform:translateY(-50%);color:var(--muted);font-size:14px;pointer-events:none}.input-wrap .prefix{left:12px}.input-wrap .suffix{right:12px}input[type=number],input[type=text],select{width:100%;padding:12px 14px;font-size:17px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);-moz-appearance:textfield}.has-prefix{padding-left:28px!important}.has-suffix{padding-right:32px!important}input:focus,select:focus{outline:2px solid var(--brand-2);border-color:transparent}.toggle{display:flex;border:1.5px solid var(--line);border-radius:10px;overflow:hidden}.toggle label{flex:1;text-align:center;padding:10px 6px;font-size:15px;font-weight:600;cursor:pointer;margin:0;background:var(--bg);color:var(--muted);user-select:none}.toggle input{display:none}.toggle label:has(input:checked){background:var(--brand-2);color:#fff}.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.btn{border:1px solid var(--line);background:var(--bg);color:var(--ink);padding:9px 14px;border-radius:9px;font-size:14px;font-weight:600;cursor:pointer}.btn:hover{border-color:var(--brand-2);color:var(--brand-2)}.results{position:sticky;top:16px}.result-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:10px 2px;border-bottom:1px dashed var(--line)}.result-row:last-child{border-bottom:none}.result-label{color:var(--muted);font-size:14px}.result-value{font-weight:700;font-size:17px;font-variant-numeric:tabular-nums}.result-primary{border-bottom:1px solid var(--line);padding:14px 2px 12px}.result-primary .result-value{font-size:clamp(26px,4vw,34px);color:var(--brand-2)}.result-note{color:var(--muted);font-size:13px;padding:2px 0 8px}.result-extra{margin-top:10px}.result-flash{animation:flash .8s ease}@keyframes flash{0%{background:#f2b70540}to{background:transparent}}#copied-toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%) translateY(20px);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:10px;font-size:14px;opacity:0;transition:.25s;pointer-events:none;max-width:90vw}#copied-toast.show{opacity:1;transform:translate(-50%) translateY(0)}.content{margin-top:36px}.content h2{font-size:22px;letter-spacing:-.3px}details{border:1px solid var(--line);border-radius:10px;background:var(--card);padding:2px 16px;margin-bottom:10px}summary{font-weight:600;cursor:pointer;padding:12px 0;list-style:none;display:flex;justify-content:space-between}summary:after{content:"+";color:var(--muted);font-size:18px}details[open] summary:after{content:"–"}.related{margin-top:36px}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-top:12px}.related-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;text-decoration:none;color:var(--ink)}.related-card:hover{border-color:var(--brand-2)}.related-card b{display:block;margin-bottom:4px}.related-card span{color:var(--muted);font-size:13px}footer.site{border-top:1px solid var(--line);color:var(--muted);font-size:13px}.foot-inner{max-width:1040px;margin:0 auto;padding:24px 16px}.privacy{display:inline-flex;align-items:center;gap:6px;background:#14805f1a;color:var(--ok);padding:4px 10px;border-radius:20px;font-weight:600;font-size:12px;margin-bottom:10px}@media print{header.site,footer.site,.actions,.content,.related,#ad-slot{display:none!important}.results{position:static}}