@charset "UTF-8";
:root{--ink:#182f3d;--muted:#50646f;--paper:#f6f5ef;--line:#d7ded9;--accent:#ab3918;--green:#146652;--soft:#e8ede8;--white:#fff;--radius:22px}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--accent)}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}:focus-visible{outline:3px solid #ba451b;outline-offset:4px}.skip{position:absolute;left:16px;top:-80px;background:white;padding:12px;z-index:10}.skip:focus{top:8px}.wrap{max-width:1200px;margin:auto;padding:0 28px}.header{border-bottom:1px solid var(--line)}.header .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:96px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-weight:800;font-size:23px;letter-spacing:-.6px}.brand img{width:46px;height:46px;border-radius:50%}.brand small{display:block;font-size:11px;font-weight:600;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted)}nav{display:flex;gap:25px;align-items:center;font-size:14px;font-weight:650}nav a[aria-current=page]{color:var(--accent)}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:50px;align-items:center;padding-top:72px;padding-bottom:66px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--green);margin:0 0 16px}h1,h2,h3{line-height:1.12;letter-spacing:-1.3px}h1{font-size:clamp(40px,5.2vw,66px);max-width:720px;margin:0 0 24px;font-weight:750}h2{font-size:clamp(26px,3vw,37px);margin:0 0 15px}h3{font-size:21px;letter-spacing:-.4px;margin:22px 0 10px}.lead{font-size:18px;max-width:610px;color:var(--muted);margin:0 0 24px}.tags{display:flex;gap:10px;flex-wrap:wrap}.tag{font-size:12px;border:1px solid var(--line);border-radius:20px;padding:6px 12px;font-weight:650}.drawing{background:var(--ink);border-radius:var(--radius);padding:25px;position:relative;box-shadow:0 18px 35px #182f3d0d}.drawing svg{width:100%;height:auto;display:block}.drawing p{color:#d7e4e4;display:flex;justify-content:space-between;gap:15px;font-size:11px;text-transform:uppercase;letter-spacing:1.2px;margin:12px 0 0}.tabs{display:flex;gap:12px;margin-bottom:24px;flex-wrap:wrap}.tabs a{padding:12px 19px;border:1px solid var(--line);border-radius:30px;text-decoration:none;font-size:14px;font-weight:700;background:white}.tools{display:grid;gap:35px;padding-bottom:64px}.tool{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;scroll-margin-top:20px}.tool-head{padding:30px 34px 24px;border-bottom:1px solid var(--line)}.tool-head p{margin:10px 0 0;max-width:740px;color:var(--muted)}.tool-number{display:inline-block;color:var(--green);font-size:12px;letter-spacing:1.5px;font-weight:800;margin-bottom:14px}.tool-body{display:grid;grid-template-columns:1.1fr 1fr}.fields{padding:30px 34px;display:grid;grid-template-columns:1fr 1fr;gap:20px}.field label{display:block;font-size:14px;font-weight:650;margin-bottom:7px}.field small{display:block;color:var(--muted);font-size:12px;margin-top:6px}input[type=number],select{width:100%;min-height:48px;border:1px solid #94a6aa;border-radius:9px;padding:9px 12px;color:var(--ink);background:#fff}input:focus{border-color:var(--green)}fieldset{border:0;padding:0;margin:0;min-width:0}.full{grid-column:1/-1}.check{display:flex;align-items:flex-start;gap:10px;font-size:14px}.check input{width:19px;height:19px;margin-top:4px;flex-shrink:0;accent-color:var(--green)}button,.button{border:0;cursor:pointer;border-radius:9px;background:var(--ink);color:#fff;padding:13px 20px;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;min-height:48px}button:hover,.button:hover{background:#294c60;color:white}.secondary{background:white;color:var(--ink);border:1px solid #9aadaa}.secondary:hover{background:var(--soft);color:var(--ink)}.result{padding:32px 34px;background:#eef2ed;border-left:1px solid var(--line);min-width:0}.result-label{font-size:12px;letter-spacing:1.4px;font-weight:800;text-transform:uppercase;color:var(--green);margin:0 0 10px}.amount{font-size:clamp(38px,4vw,58px);font-weight:750;letter-spacing:-2px;line-height:1.15;margin:0 0 8px;overflow-wrap:anywhere}.unit{font-size:14px;color:var(--muted);margin:0 0 24px}.breakdown{margin:20px 0}.breakdown div{display:flex;justify-content:space-between;gap:18px;border-top:1px solid #ccd5ce;padding:11px 0}.breakdown dt{font-size:14px}.breakdown dd{margin:0;font-weight:700;font-variant-numeric:tabular-nums;text-align:right}.notice{font-size:13px;color:var(--muted);line-height:1.6;margin:18px 0}.actions{display:flex;gap:10px;flex-wrap:wrap}.status{font-size:13px;margin:12px 0 0;min-height:20px}.error{color:#a32620;font-weight:650}.orientation{margin:18px 0;padding:15px;background:white;border:1px solid var(--line);border-radius:12px}.orientation p{margin:4px 0;font-size:14px}.next{background:var(--ink);color:white;padding:38px;border-radius:var(--radius);display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;margin-bottom:64px}.next h2{font-size:30px}.next p{color:#d4e0e5;max-width:670px;margin-bottom:0}.next .button{background:#e5ef88;color:var(--ink)}.article{max-width:820px;padding-top:65px;padding-bottom:70px}.article h1{font-size:50px}.article h2{margin-top:44px;font-size:30px}.article p,.article li{color:var(--muted)}.article li{margin-bottom:9px}.formula{background:white;border:1px solid var(--line);border-left:4px solid var(--green);padding:20px;border-radius:10px;overflow-wrap:anywhere}.formula code{font-size:14px;color:var(--ink)}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:22px 0}table{border-collapse:collapse;width:100%;font-size:14px;background:#fff}th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line)}th{background:var(--soft)}tr:last-child td{border:0}footer{border-top:1px solid var(--line);padding:28px 0 35px;font-size:12px;color:var(--muted)}footer .wrap{display:flex;justify-content:space-between;gap:24px;align-items:center}footer p{margin:0;max-width:590px}footer a{white-space:nowrap}.footer-links{display:flex;gap:20px;flex-wrap:wrap}[hidden]{display:none!important}@media(max-width:800px){.hero{gap:30px;grid-template-columns:1fr;padding-top:45px;padding-bottom:40px}.drawing{max-width:500px;width:100%}.tool-body{grid-template-columns:1fr}.result{border-left:0;border-top:1px solid var(--line)}.header .wrap{flex-wrap:wrap;padding-top:17px;padding-bottom:17px;gap:14px}nav{gap:20px}.next{grid-template-columns:1fr}.next .button{justify-self:start}footer .wrap{flex-direction:column;align-items:flex-start}}@media(max-width:480px){.wrap{padding:0 18px}.header .wrap{gap:16px}.brand{font-size:21px}nav{width:100%;justify-content:space-between;gap:10px;font-size:13px}.hero{padding-top:34px}.hero h1{font-size:42px}.lead{font-size:16px}.drawing{padding:16px}.tool-head,.fields,.result{padding:24px 20px}.fields{gap:19px 13px}.field label{font-size:13px}.tool h2{font-size:29px}.tabs{gap:8px}.tabs a{font-size:12px;padding:10px 14px}.next{padding:27px}.next h2{font-size:28px}.article{padding-top:38px}.article h1{font-size:39px}.actions button{flex:1}input[type=number]{font-size:16px} .amount{font-size:44px}}