:root{--ink:#14231c;--green:#12372a;--soft:#eef5ef;--gold:#e8b44f;--line:#d8e0da;--white:#fff}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:linear-gradient(135deg,#edf5ef,#f7f6f0 55%,#f4efe1);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif}main{width:min(980px,calc(100% - 28px));margin:auto;padding:28px 0 50px}.nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}.nav a{padding:9px 12px;border:1px solid #c9d6ce;border-radius:999px;background:#ffffffb8;color:var(--green);font-size:.82rem;font-weight:750;text-decoration:none}.nav a:hover{text-decoration:underline}h1{max-width:760px;margin:0;color:var(--green);font-size:clamp(2rem,5vw,3.7rem);line-height:1;letter-spacing:-.045em}.lead{max-width:720px;margin:14px 0 25px;color:#506158;font-size:1.05rem;line-height:1.6}.calc{display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border:1px solid #ccd8d0;border-radius:22px;background:#fff;box-shadow:0 20px 52px #1736291a}.panel{padding:28px}.panel:first-child{color:#fff;background:var(--green)}h2{margin:0 0 18px;font-size:1.3rem}.field{margin:0 0 17px}label{display:block;margin-bottom:7px;font-size:.9rem;font-weight:750}.input{position:relative}.input span{position:absolute;top:50%;transform:translateY(-50%);color:#c6dfd1}.prefix{left:13px}.suffix{right:13px}input{width:100%;padding:13px 40px;border:1px solid #527365;border-radius:11px;color:#fff;background:#21483a;font:700 1rem inherit}.output{margin-bottom:12px;padding:17px;border-radius:14px;background:var(--soft)}.output span{display:block;margin-bottom:5px;color:#5c6b63;font-size:.78rem}.output strong{font-size:1.55rem;font-variant-numeric:tabular-nums}.output.primary{color:#fff;background:var(--green)}.output.primary span{color:#c9dfd2}.warning{margin:22px 0 0;padding:15px;border:2px solid #8f2f2f;border-radius:12px;background:#fff3f1;color:#721f1f;font-weight:800;line-height:1.45}.content{margin-top:22px;padding:25px;border:1px solid #d6ddd8;border-radius:17px;background:#ffffffb5}.content h2{color:var(--green)}.content h3{margin:22px 0 7px;color:var(--green)}.content p,.content li{color:#526159;line-height:1.65}.content a{color:var(--green);font-weight:750}footer{margin-top:22px;text-align:center;color:#66736c;font-size:.86rem}@media(max-width:700px){.calc{grid-template-columns:1fr}.panel{padding:22px}}