:root{--ink:#10233d;--muted:#61728a;--line:#dce6ee;--bg:#f5f8fb;--card:#fff;--green:#25c178;--cyan:#29b9d4;--navy:#07182d;--shadow:0 15px 40px rgba(14,40,70,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}a{color:inherit;text-decoration:none}.topbar{height:76px;padding:0 max(24px,calc((100% - 1180px)/2));display:flex;align-items:center;justify-content:space-between;background:var(--navy);color:#fff;position:sticky;top:0;z-index:10}.brand{display:flex;gap:12px;align-items:center;font-size:20px;font-weight:750}.brand b{font-size:12px;letter-spacing:.14em;color:var(--green)}.mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;font-weight:900;background:linear-gradient(135deg,var(--green),var(--cyan));color:var(--navy);transform:skew(-7deg)}nav{display:flex;gap:24px}nav a{opacity:.84}nav a:hover{opacity:1}.hero{background:radial-gradient(circle at 80% 20%,rgba(41,185,212,.22),transparent 32%),var(--navy);color:#fff;padding:72px max(24px,calc((100% - 1180px)/2)) 82px}.hero .eyebrow{color:var(--green);font-weight:750;letter-spacing:.08em;text-transform:uppercase;font-size:13px}.hero h1{font-size:clamp(38px,6vw,70px);line-height:1.02;max-width:820px;margin:13px 0 20px;letter-spacing:-.045em}.hero p{font-size:20px;color:#b8c9da;max-width:680px;margin:0}.section{max-width:1180px;margin:auto;padding:58px 24px}.section h2{font-size:34px;letter-spacing:-.025em;margin:0 0 10px}.lead{color:var(--muted);margin:0 0 30px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.tool-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;min-height:190px;box-shadow:var(--shadow);transition:.2s}.tool-card:hover{transform:translateY(-3px);border-color:#a8dfe2}.icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#e7fbf3;color:#087c51;font-weight:900}.tool-card h3{margin:20px 0 8px;font-size:19px}.tool-card p{margin:0;color:var(--muted);font-size:15px}.calc-wrap{max-width:1040px;margin:auto;padding:48px 24px}.crumb{color:var(--muted);font-size:14px;margin-bottom:20px}.calc-head h1{font-size:clamp(34px,5vw,52px);line-height:1.08;margin:0 0 12px;letter-spacing:-.04em}.calc-head p{color:var(--muted);font-size:18px;max-width:720px}.calc-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;margin-top:32px}.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow)}.fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field label{display:block;font-size:14px;font-weight:700;margin-bottom:7px}.field input,.field select{width:100%;height:48px;border:1px solid #cbd8e2;border-radius:11px;padding:0 13px;font:inherit;color:var(--ink);background:#fff}.field input:focus,.field select:focus{outline:3px solid rgba(41,185,212,.18);border-color:var(--cyan)}button{border:0;border-radius:12px;background:linear-gradient(135deg,var(--green),var(--cyan));color:var(--navy);font-weight:800;font-size:16px;padding:14px 22px;margin-top:20px;cursor:pointer}.result{background:var(--navy);color:#fff}.result .label{color:#a9bfd1;font-size:14px}.result .big{font-size:38px;font-weight:850;letter-spacing:-.04em;margin:4px 0 20px}.result dl{display:grid;grid-template-columns:1fr auto;gap:11px;margin:0}.result dt{color:#a9bfd1}.result dd{margin:0;font-weight:700}.content{margin-top:26px}.content h2{font-size:26px}.content p,.content li{color:#52657a}.notice{border-left:4px solid var(--green);background:#eafaf3;padding:14px 18px;border-radius:8px}.plain{max-width:820px;margin:auto;padding:55px 24px}.plain h1{font-size:44px}.plain h2{margin-top:34px}footer{max-width:1180px;margin:40px auto 0;border-top:1px solid var(--line);padding:28px 24px 40px;display:flex;justify-content:space-between;color:var(--muted);font-size:14px}@media(max-width:850px){.grid{grid-template-columns:1fr 1fr}.calc-grid{grid-template-columns:1fr}.topbar nav{display:none}}@media(max-width:560px){.grid,.fields{grid-template-columns:1fr}.hero{padding-top:50px}.hero p{font-size:17px}.section{padding-top:42px}.topbar{height:66px}.calc-wrap{padding-top:34px}footer{display:block}footer nav{margin-top:14px;gap:16px}}