:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(180deg,#eef4fb,#f7f9fc);color:#0f172a}.page{padding:24px 16px}.shell{max-width:1080px;margin:0 auto;display:grid;gap:16px}h1{margin:0;font-size:28px}h2{margin:0 0 12px;font-size:18px}.card{background:#fff;border:1px solid #dbe4ef;border-radius:14px;padding:16px}.highlight{border-color:#7ea7d6;background:#f2f8ff}.grid{display:grid;gap:16px}.fields{display:grid;gap:10px}.two-cols{grid-template-columns:1fr}label{display:grid;gap:6px;font-size:13px;font-weight:600}input,select,button{height:38px;padding:0 10px;border:1px solid #cbd5e1;border-radius:8px;font-size:14px}.checkboxes{display:grid;gap:10px;grid-template-columns:1fr 1fr}.checkboxes label{display:flex;align-items:center;gap:8px;font-size:14px}.checkboxes input{width:16px;height:16px}.actions{display:flex;justify-content:flex-end}button{border:none;background:#1f5fa8;color:#fff;cursor:pointer;font-weight:600}button:disabled{background:#9aa9bd;cursor:not-allowed}.result-metrics{display:grid;gap:6px;margin-bottom:12px}.warning{margin-top:12px;padding:10px;border-radius:8px;background:#fff8e6;color:#8a4b00;border:1px solid #f5d487}.error,.success{margin:0;font-weight:600}.error{color:#b91c1c}.success{color:#166534}table{width:100%;border-collapse:collapse;font-size:13px}th,td{border-bottom:1px solid #dbe4ef;text-align:left;padding:8px;vertical-align:top}th{color:#334155}@media (min-width: 860px){.two-cols{grid-template-columns:1fr 1fr}}