:root{--ink:#182b27;--muted:#586a65;--accent:#28654f;--soft:#e7f0e9;--line:#dbe3df;--paper:#f6f8f4;--white:#fff;--warn:#824418;--warning:#fff3de;--shadow:0 12px 40px rgba(24,43,39,.05)}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}body.ev{--ink:#172e49;--muted:#53667a;--accent:#245dab;--soft:#e8f0fc;--line:#dbe3ed;--paper:#f5f7fb}body.print{--ink:#392b25;--muted:#75635a;--accent:#9a472b;--soft:#f9ece4;--line:#e9ded6;--paper:#fbf7f3}a{color:var(--accent);text-underline-offset:3px}button,input,select{font:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}button,input,select,summary,a{outline-offset:4px}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid var(--accent)}.skip{position:absolute;top:-60px;left:20px;background:white;padding:10px;z-index:9}.skip:focus{top:12px}.wrap{max-width:1180px;margin:auto;padding:0 28px}.top{height:84px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:16px}.wordmark{font-weight:750;letter-spacing:-.5px;font-size:21px;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:11px}.mark{width:32px;height:32px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:13px;letter-spacing:.4px;border-radius:9px}.topnav{display:flex;gap:20px;font-size:13px}.topnav a{color:var(--muted);text-decoration:none}.hero{padding:48px 0 30px;max-width:850px}.eyebrow{font-size:11px;font-weight:750;letter-spacing:2px;text-transform:uppercase;color:var(--accent);margin:0 0 14px}h1{font-size:clamp(32px,4.2vw,51px);line-height:1.1;letter-spacing:-1.9px;margin:0 0 19px;font-weight:720}h2{font-size:21px;letter-spacing:-.5px;margin:0 0 7px}h3{font-size:16px;margin:0 0 8px}.intro{font-size:17px;color:var(--muted);max-width:710px;margin:0}.pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.pill{font-size:11px;border:1px solid var(--line);border-radius:20px;padding:5px 10px;background:#fff;color:var(--muted)}.layout{display:grid;grid-template-columns:minmax(0,1.27fr) minmax(0,1fr);gap:24px;align-items:start}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:26px;min-width:0}.panel+.panel{margin-top:18px}.panelhead{display:flex;justify-content:space-between;align-items:start;gap:12px}.step{width:25px;height:25px;display:grid;place-items:center;background:var(--soft);border-radius:50%;font-size:11px;font-weight:700;flex-shrink:0}.sectiontitle{display:flex;gap:10px;align-items:center;margin-bottom:16px}.sectiontitle h2{font-size:18px;margin:0}.help{font-size:12px;line-height:1.5;color:var(--muted);margin:5px 0 0}.small{font-size:13px;color:var(--muted)}.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px 14px}.field{min-width:0}label{display:block;font-size:12px;font-weight:650;margin:0 0 6px;line-height:1.35}input,select{width:100%;border:1px solid var(--line);border-radius:9px;padding:10px 11px;color:var(--ink);background:#fff;min-height:43px;min-width:0}input:hover,select:hover{border-color:var(--muted)}input:focus,select:focus{border-color:var(--accent)}.full{grid-column:1/-1}.buttons{display:flex;flex-wrap:wrap;gap:8px}.btn{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:9px;padding:9px 13px;font-size:12px;font-weight:650;text-decoration:none;display:inline-block}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn.soft{background:var(--soft);border-color:var(--soft);color:var(--accent)}.presets{margin:13px 0 17px}.device{border:1px solid var(--line);border-radius:12px;padding:14px;margin:12px 0;background:var(--paper)}.device-top{display:flex;gap:9px;align-items:center;margin-bottom:13px}.device-top input{font-weight:650;background:#fff}.device-top .btn{font-size:11px;padding:9px;white-space:nowrap}.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}.device input{font-size:14px;padding:8px}.device label{font-size:11px}.device .field p{font-size:11px}.actions{padding:18px 0 0}.status{min-height:20px;font-size:12px;color:var(--muted);margin:8px 0 0}.notice{padding:12px 14px;border-radius:10px;background:var(--soft);font-size:12px;color:var(--ink);margin:15px 0}.warning{background:var(--warning);color:var(--warn)}.error{background:#fff0ed;border:1px solid #d19484;color:#802d1c;padding:12px;border-radius:10px;font-size:13px;margin-bottom:15px}.error[hidden]{display:none}.result-wrap{position:sticky;top:20px}.result{background:var(--ink);color:white;box-shadow:var(--shadow);border-radius:18px;padding:28px}.result .eyebrow{color:#cfdbd6;margin-bottom:12px}.result .sub{color:#d8e0dc;font-size:13px;line-height:1.5}.big{font-size:clamp(34px,3.6vw,49px);font-weight:700;letter-spacing:-1.8px;line-height:1.15;margin:8px 0 9px;overflow-wrap:anywhere}.result .metrics{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:25px 0 0;padding-top:19px;border-top:1px solid #ffffff30}.metric strong{font-size:20px;display:block;font-weight:650}.metric span{font-size:11px;color:#d8e0dc;display:block;margin-top:3px}.result-details{background:#fff;border:1px solid var(--line);border-radius:18px;margin-top:18px;padding:22px}.breakdown{list-style:none;margin:13px 0 0;padding:0;font-size:13px}.breakdown li{display:flex;justify-content:space-between;gap:15px;padding:9px 0;border-bottom:1px solid var(--line)}.breakdown li:last-child{border-bottom:0}.breakdown strong{text-align:right;white-space:nowrap}.hint{background:var(--soft);border-radius:10px;padding:13px;font-size:12px;margin-top:15px}.result.invalid,.result-details.invalid{opacity:.45}.barrow{margin:14px 0}.barlabel{display:flex;justify-content:space-between;font-size:12px;gap:10px;margin-bottom:7px}.bartrack{height:8px;background:var(--soft);border-radius:9px;overflow:hidden}.barfill{height:100%;background:var(--accent);border-radius:9px;max-width:100%}.barfill.fuel{background:var(--muted)}.below{margin:30px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:24px}.below p{font-size:13px;color:var(--muted)}.formula{background:var(--paper);border:1px solid var(--line);padding:13px;border-radius:9px;font-size:12px;line-height:1.7;overflow-wrap:anywhere}.formula code{font:12px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace}details{border-bottom:1px solid var(--line);padding:14px 0}summary{font-size:13px;font-weight:650;cursor:pointer}details p{margin:10px 0 0}.sources{font-size:12px;line-height:1.8}.footer{padding:32px 0 26px;margin-top:28px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);display:flex;gap:22px;justify-content:space-between}.privacy{max-width:740px;font-size:12px;color:var(--muted);margin:20px 0}.article{max-width:760px;margin:40px auto}.article p,.article li{font-size:16px;color:var(--muted)}.article h2{margin-top:28px}.article .lead{font-size:19px}.guidecall{display:block;margin-top:15px}.customer-quote{display:none}.quote-table{width:100%;border-collapse:collapse;margin:24px 0}.quote-table td,.quote-table th{padding:12px;border-bottom:1px solid #ddd;text-align:left}.quote-table td:last-child,.quote-table th:last-child{text-align:right}.print-total{text-align:right;font-size:24px}.noscript{padding:14px;background:var(--warning)}
@media(max-width:900px){.layout{grid-template-columns:1fr}.result-wrap{position:static}.below{grid-template-columns:1fr}.topnav{gap:13px}.hero{padding-top:32px}.big{font-size:43px}.result .metrics{grid-template-columns:repeat(3,1fr)}}
@media(max-width:530px){.wrap{padding:0 16px}.top{height:69px}.topnav a:first-child{display:none}.wordmark{font-size:18px}.hero{padding:29px 0 23px}.hero .intro{font-size:15px}h1{letter-spacing:-1.2px}.panel{padding:18px;border-radius:14px}.result{padding:22px}.fields{gap:15px 11px}.device{padding:12px}.device-grid{grid-template-columns:1fr 1fr}.result .metrics{grid-template-columns:1fr 1fr}.below{gap:18px}.footer{display:block}.footer span{display:block;margin-top:8px}.pills{gap:6px}.pill{font-size:10px}.topnav{font-size:12px}.article{margin-top:24px}.panelhead{display:block}.big{font-size:39px}}
@media print{body{background:white;color:black;font-size:12pt}.top,.hero,.input-column,.below,.actions,.footer,.privacy,.notice,.topnav,.skip,.no-print{display:none!important}.layout{display:block}.result-wrap{position:static}.result,.result-details{background:white;color:black;box-shadow:none;border:1px solid #bbb;break-inside:avoid}.result .sub,.result .eyebrow,.metric span{color:#333}.result .metrics{border-color:#aaa}.wrap{max-width:none;padding:0}.result{margin-top:20px}.print .wrap>*{display:none!important}.print .wrap>.customer-quote{display:block!important}.print .customer-quote h1{font-size:25pt;margin-top:30pt}.print .customer-quote p{font-size:11pt}.article{display:block!important}.top a{color:black}}