*{box-sizing:border-box}body{margin:0;background:#f5f6f8;color:#20354b;font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif}header{max-width:1080px;margin:auto;padding:24px 32px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #d9e0e7}.brand{font-size:24px;font-weight:500;text-decoration:none;color:#164576}.brand span{font-weight:800}.stage{font-size:12px;color:#586878;letter-spacing:.04em}main{max-width:960px;margin:64px auto;padding:0 32px}h1{font-size:clamp(32px,5vw,52px);line-height:1.14;letter-spacing:-.035em;margin:12px 0 24px;font-weight:650}h2{font-size:25px;line-height:1.3}.eyebrow{color:#a4563c;letter-spacing:.15em;font-size:11px;font-weight:750}.lead{font-size:19px;color:#52677c;max-width:680px}.notice{border-left:3px solid #b0694e;padding:12px 18px;margin:28px 0;color:#536475;background:#fff;max-width:670px}form{max-width:560px;margin-top:30px;display:grid;gap:12px}label{font-weight:650;font-size:14px}select,button{font:inherit;border-radius:7px;padding:13px 17px}select{border:1px solid #b5c3d2;background:white;color:#20354b;width:100%}button{cursor:pointer;background:#134b7e;color:white;border:1px solid #134b7e;font-weight:600}button:hover{background:#0e3b65}button:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #cd835f;outline-offset:3px}.secondary{background:transparent;color:#164576;border-color:#bdcbd8;font-size:14px}.secondary:hover{background:#e7edf2}.welcome{display:flex;justify-content:space-between;gap:20px;align-items:center}.welcome h1{font-size:36px}.module-nav{display:flex;gap:10px;margin:30px 0 0;border-bottom:1px solid #c8d4df;padding-bottom:12px}.module-nav button{background:transparent;color:#335775;border:1px solid transparent;font-size:15px}.module-nav button[aria-pressed=true]{background:#e1ebf3;border-color:#b3cbdc}.activity{background:#fff;border:1px solid #dce3e9;border-radius:10px;padding:24px 30px;margin:22px 0;min-height:190px}.activity h2{margin:0 0 12px}.role{color:#134b7e;font-weight:650;font-size:14px}details{font-size:14px;color:#52677c;padding-top:12px}summary{cursor:pointer}pre{white-space:pre-wrap;word-break:break-word;font-size:12px;background:#eaf0f4;padding:16px}#error{color:#a33330}footer{max-width:1080px;margin:60px auto 0;padding:24px 32px;border-top:1px solid #d9e0e7;color:#687b8c;font-size:12px}[hidden]{display:none!important}@media(max-width:600px){header{padding:18px;gap:12px;align-items:flex-start}.brand{font-size:20px}.stage{max-width:110px;text-align:right}main{margin:36px auto;padding:0 20px}.welcome{align-items:flex-start}.welcome h1{font-size:28px}.module-nav{flex-direction:column}.activity{padding:22px}footer{padding:22px}}