:root{color-scheme:only light;--ink:#1c1917;--muted:#57534e;--line:#e7e5e4;--brand:#1d4ed8}
*{box-sizing:border-box}body{margin:0;font:17px/1.6 system-ui,Segoe UI,Arial,sans-serif;color:var(--ink);background:#fff}
header,footer{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line)}
footer{border-top:1px solid var(--line);border-bottom:0;justify-content:center;color:var(--muted);font-size:14px}
.logo{font-weight:800;color:var(--ink);text-decoration:none}.logo b{color:var(--brand)}nav a{margin-left:12px;color:var(--muted);text-decoration:none}
main{max-width:760px;margin:0 auto;padding:16px}.crumbs{font-size:14px;color:var(--muted)}.crumbs a{color:var(--muted)}
h1{font-size:32px;line-height:1.2;margin:12px 0}h2{font-size:24px;margin-top:32px}h3{font-size:18px}
.answer{font-size:19px}.trust,.muted{color:var(--muted);font-size:14px}a{color:var(--brand)}
.tw{overflow-x:auto}table{border-collapse:collapse;width:100%;margin:12px 0}th,td{border:1px solid var(--line);padding:6px 10px;text-align:left}th{background:#f5f5f4}

.calc{border:1px solid var(--line);border-radius:12px;padding:12px;margin:16px 0}.row{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0}select{padding:6px}.total{font-size:20px}