:root{color-scheme:dark;--navy:#101e2a;--panel:#1b2d3c;--gold:#cfab77;--text:#eef3f6;--muted:#b5c5d0;--line:#415767}*{box-sizing:border-box}body{margin:0;background:var(--navy);color:var(--text);font-family:Arial,sans-serif;line-height:1.7}header{border-top:8px solid var(--gold);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:22px max(24px,calc((100vw - 1080px)/2));gap:20px}.brand{font-size:26px;font-weight:bold;letter-spacing:2px;text-decoration:none;color:#edd8b6;direction:ltr}.brand small{display:block;font-size:13px;font-weight:normal;letter-spacing:0;color:var(--muted)}main{max-width:1080px;margin:auto;padding:25px 24px 60px}nav{display:flex;gap:18px;flex-wrap:wrap}a{color:#edd8b6}nav a{font-size:15px}.intro{padding:35px 0 24px}.eyebrow{color:var(--gold);font-size:13px}h1{font-size:clamp(27px,4vw,43px);line-height:1.25;margin:12px 0 20px}h2{font-size:23px}p{max-width:830px}.muted{color:var(--muted)}button{font:inherit;cursor:pointer;border:1px solid var(--gold);border-radius:8px;padding:9px 18px;background:var(--gold);color:var(--navy);font-weight:bold}button.outline{background:transparent;color:var(--gold)}button:disabled{cursor:not-allowed;opacity:.5}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #e8c687;outline-offset:4px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px}.sets{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card,.question,.account{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:24px}.card h3{margin:0 0 10px}.badge{display:inline-block;font-size:13px;padding:2px 10px;border-radius:20px;background:#294455;color:#e2edf3}.badge.due{background:#cfab77;color:#101e2a}.badge.completed{background:#245443}.card time{display:block;margin:12px 0;color:var(--muted);font-size:14px}.card button{width:100%;margin-top:14px}.account{padding:18px 24px}#notice:not(:empty){border-inline-start:4px solid var(--gold);background:#273b47;padding:12px 18px;margin:15px 0}#attempt{margin-top:38px;border-top:1px solid var(--line);padding-top:20px}.question{margin:18px 0}.question legend{font-weight:bold;padding:0 6px}.question label.choice{display:flex;align-items:baseline;gap:12px;margin:10px 0;cursor:pointer}input[type=radio]{accent-color:var(--gold);width:18px;height:18px}textarea,select{background:#101e2a;color:var(--text);border:1px solid #607785;border-radius:6px;padding:10px;font:inherit;max-width:100%}textarea{display:block;width:100%;min-height:110px}.order-row{display:flex;align-items:center;gap:14px;margin-top:12px}.order-row select{flex:1}.result-head{border:1px solid var(--gold);padding:20px;border-radius:10px;margin:22px 0}.result-detail{border-bottom:1px solid var(--line);padding:18px 0}.result-detail h3{font-size:18px}.source{color:var(--muted);font-size:13px;white-space:pre-line}footer{color:var(--muted);font-size:13px;margin-top:45px;border-top:1px solid var(--line);padding-top:20px}@media(max-width:760px){.sets{grid-template-columns:1fr}.toolbar{align-items:flex-start}header{padding:18px 24px}.card{padding:20px}nav{gap:14px}}