:root{font-family:system-ui,sans-serif;color:#e7edf7;background:#0c1424}body{max-width:1080px;margin:48px auto;padding:0 24px}h1{font-size:40px;margin-bottom:12px}p{color:#b9c8de;line-height:1.6}.eyebrow{color:#71d2be;letter-spacing:.15em;font-size:12px}.notice{border-left:3px solid #edbd70;padding:12px 18px;background:#202337;border-radius:4px}.controls{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin:28px 0}button,select{font:inherit;color:inherit;background:#1a2940;border:1px solid #405575;border-radius:8px;padding:12px 18px}button{cursor:pointer}button.primary{background:#147862}button:disabled{opacity:.5;cursor:wait}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{padding:22px;background:#142036;border:1px solid #2b3d59;border-radius:12px;min-height:190px}h2{font-size:17px;color:#b9c8de}.result{font-size:26px;font-weight:650;overflow-wrap:anywhere}pre{white-space:pre-wrap;overflow-wrap:anywhere;color:#b9c8de;font-size:12px}.legend{margin-top:24px;font-size:14px}a{color:#90bbff}@media(max-width:760px){.grid{grid-template-columns:1fr}body{margin-top:24px}h1{font-size:30px}}