:root{color-scheme:dark;--bg:#071727;--panel:#102b43;--panel2:#0a2033;--line:#2b526d;--text:#f5f8fb;--muted:#b4c5d2;--blue:#258cc4;--amber:#c18a32}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.site-header{background:#0b2340;border-bottom:4px solid #b51e36;padding:22px max(18px,calc((100% - 1000px)/2))}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:1px;margin-bottom:12px}.brand-mark{font-size:13px;border:1px solid #7c9ab1;border-radius:5px;padding:3px 7px;color:#d7e5ef}
h1{font-size:clamp(24px,4vw,34px);line-height:1.15;margin:0;max-width:850px}h2{font-size:19px;margin:0 0 16px}.container{max-width:1000px;margin:24px auto;padding:0 16px 34px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:21px;margin-bottom:17px;box-shadow:0 10px 28px #0003}
.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}.field{display:block;font-weight:650;font-size:15px}.field input,.field select{display:block;width:100%;height:53px;margin-top:8px;border:1px solid #456a83;border-radius:10px;background:var(--panel2);color:var(--text);padding:0 13px;font:inherit;font-size:18px}
button{width:100%;min-height:54px;border:0;border-radius:10px;font:700 18px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;cursor:pointer;margin-top:17px}.primary{background:#258cc4;color:white}.secondary{background:#1b3c55;color:#e7f1f7;margin-top:9px}
.method-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.method{margin-bottom:17px}.method-title{display:flex;justify-content:space-between;align-items:center;gap:8px}.method-title h2{margin:0}.pill{font-size:11px;font-weight:800;letter-spacing:.5px;border-radius:20px;padding:5px 9px}.blue{background:#164f70;color:#bce8ff}.amber{background:#59431f;color:#ffdda0}
.big-number{font-size:clamp(28px,4vw,39px);font-weight:800;letter-spacing:-.5px;margin:12px 0 2px}.unit{font-size:13px;color:var(--muted)}.steps{margin-top:15px}.steps>div,.detail-grid>div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.steps span,.detail-grid span{color:var(--muted)}.steps b,.detail-grid b{text-align:right;font-variant-numeric:tabular-nums}.steps .total{font-weight:800;font-size:17px;color:white;border-bottom:0;border-top:1px solid #6b8ba2;margin-top:4px}
.verdict{padding:14px;border-radius:11px;margin-top:14px;text-align:center;font-weight:850;line-height:1.35}.below{background:#104c3b;border:1px solid #329d78;color:#d6ffef}.above{background:#582b2d;border:1px solid #c65c5c;color:#ffe1e1}.verdict small{display:block;font-weight:500;font-size:12px;margin-top:6px}
.error-panel{border-color:#b95c5c;background:#442528}.error-panel h2{color:#ffd9d9}.source-note{color:var(--muted);font-size:13px;line-height:1.55}.detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}footer{text-align:center;color:#839bad;font-size:12px;padding:10px}[hidden]{display:none!important}
@media(max-width:680px){.field-grid,.method-grid,.detail-grid{grid-template-columns:1fr}.panel{padding:17px}.container{margin-top:15px}.site-header{padding:18px}.steps>div,.detail-grid>div{gap:8px}}