:root{--ink:#102a40;--muted:#556760;--lime:#d4fb4b;--paper:#f5f5ed;--line:#d7ded1;--white:#fffef9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}header,main,footer{max-width:1240px;margin:auto}header{padding:30px 44px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);font-size:12px;letter-spacing:.1em}a{color:inherit;text-underline-offset:3px}header a{text-decoration:none}.brand-mark{display:inline-grid;place-items:center;background:var(--lime);width:28px;height:28px;margin-left:12px;border-radius:50%;font-size:20px}main{padding:0 44px}.hero{padding:65px 0 46px;max-width:860px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:.14em}h1{font-size:clamp(38px,5vw,66px);line-height:1.07;letter-spacing:-.055em;font-weight:620;margin:23px 0}h1 em{font-style:normal;background:linear-gradient(transparent 60%,var(--lime) 60%)}.intro{font-size:20px;max-width:650px;color:var(--muted)}.badges{display:flex;gap:10px;flex-wrap:wrap;font-size:12px}.badges span{border:1px solid var(--line);border-radius:30px;padding:6px 12px}.layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,1fr);gap:26px;align-items:start}.form-panel{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:32px}.section-head{display:flex;gap:15px;align-items:center;margin-bottom:20px}.step{background:var(--lime);border-radius:50%;min-width:42px;height:42px;display:grid;place-items:center;font-weight:bold;font-size:13px}.section-head h2{font-size:22px;line-height:1.2;margin:0;letter-spacing:-.03em}.section-head p{margin:5px 0 0;font-size:13px;color:var(--muted)}label{display:block;font-weight:650;font-size:14px;margin:22px 0 7px}select,input:not([type=checkbox]){width:100%;padding:14px 12px;border:1px solid #acbab0;border-radius:8px;background:white;color:var(--ink);font:inherit;font-size:15px;min-height:50px}select{white-space:normal}input:focus,select:focus,button:focus-visible,summary:focus-visible{outline:3px solid #5b8a15;outline-offset:3px}.hint{font-size:12px;color:var(--muted);line-height:1.55;margin:8px 0 0}.divider{border-top:1px solid var(--line);margin-top:32px;padding-top:28px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:15px}details{border:1px solid var(--line);border-radius:9px;padding:16px;margin-top:20px}summary{cursor:pointer;font-weight:650;font-size:14px}.check{display:flex;gap:10px;align-items:flex-start;font-weight:400}.check input{margin-top:5px;min-width:18px;height:18px;accent-color:var(--ink)}button{cursor:pointer;font:inherit;font-weight:650;border:0}.primary{display:flex;justify-content:space-between;width:100%;padding:17px 20px;margin-top:28px;background:var(--ink);color:var(--lime);border-radius:9px}.primary:hover{background:#193e58}.text-button{display:block;margin:15px auto 0;background:none;font-size:13px;text-decoration:underline;color:var(--muted)}.result{background:var(--ink);color:var(--white);padding:30px;border-radius:20px}.result h2{font-size:29px;line-height:1.2;letter-spacing:-.03em}.result p{font-size:15px}.result .eyebrow{color:var(--lime);font-size:11px}.result-note{font-size:12px;border-top:1px solid #668179;padding-top:18px;margin-top:25px;color:#dce8d9}.result .metric{font-size:46px;color:var(--lime);font-weight:650;letter-spacing:-.04em;line-height:1.1;margin:24px 0 6px}.result .calculation{white-space:pre-line;background:#193e58;padding:16px;border-radius:8px;font-size:13px;overflow-wrap:anywhere}.result button{background:var(--lime);color:var(--ink);padding:12px 18px;border-radius:7px;margin-top:12px}.result.invalid{background:#763d26}.side-card{padding:24px 28px;margin-top:16px;border:1px solid var(--line);border-radius:20px}.side-card h3{font-size:16px;margin:0}.side-card dt{font-size:28px;letter-spacing:-.04em;font-weight:700;margin-top:20px}.side-card dd{margin:0;font-size:13px;color:var(--muted)}.guide{max-width:800px;padding:70px 0 24px}.guide h2,.sources h2{font-size:32px;letter-spacing:-.04em}.formula{background:var(--lime);padding:24px;border-radius:12px;font-weight:650;font-size:18px;line-height:1.9}.example{border-left:4px solid var(--ink);padding:12px 24px;background:var(--white);margin:28px 0}.sources{padding:25px 0 45px;border-top:1px solid var(--line);font-size:13px}.sources li{margin-bottom:13px;overflow-wrap:anywhere}footer{padding:28px 44px;border-top:1px solid var(--line);font-size:12px;display:flex;gap:16px;justify-content:space-between}footer span{color:var(--muted)}[hidden]{display:none!important}@media(max-width:760px){header{padding:20px}header>span{display:none}main{padding:0 18px}.hero{padding:36px 0}.intro{font-size:17px}.layout{grid-template-columns:1fr}.form-panel{padding:22px}.result{padding:24px}.guide{padding-top:42px}.formula{font-size:15px;padding:18px}footer{padding:22px;display:block}.fields{grid-template-columns:1fr}h1{font-size:43px}select{font-size:14px}}@media print{body{background:white;font-size:11pt}header,.hero,.form-panel,.side-card,footer,.guide,.sources{display:none}.layout{display:block}main{padding:0}.result{background:white!important;color:black;border:1px solid #aaa}.result .eyebrow,.result .metric,.result-note{color:black}.result .calculation{background:#eee}.result button{display:none}}

.community{background:#eaf0f4;padding:30px;border-radius:18px;margin:20px 0 45px}.community h2{font-size:30px;letter-spacing:-.04em}.community-button{display:inline-block;background:var(--ink);color:var(--lime);padding:14px 20px;border-radius:8px;text-decoration:none;font-weight:700}.community .hint{max-width:760px}@media print{.community{display:none}}