:root{color-scheme:dark;font-family:Arial,Helvetica,sans-serif;background:#0b101d;color:#f5f6fa}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 90% 0%,#243049,transparent 55%);min-height:100vh}main{max-width:1260px;margin:auto;padding:32px 44px}header{display:flex;justify-content:space-between;align-items:center}.brand{font-size:30px;color:white;text-decoration:none;font-weight:900;letter-spacing:-1px}.brand span{font-size:12px;letter-spacing:2px;margin-left:12px;color:#c4ccde}.badge{font-size:11px;letter-spacing:2px;border:1px solid #35415a;padding:10px 14px;border-radius:24px;color:#b5c2d8}.intro{padding:34px 0 20px;position:relative}.eyebrow{font-size:11px;letter-spacing:3px;font-weight:bold;color:#adf574}h1{font-size:52px;letter-spacing:-2px;line-height:1.02;margin:16px 0}h1 em{font-style:normal;color:#adf574}.intro>p:last-child{position:absolute;right:0;bottom:30px;max-width:300px;color:#acb8cc;line-height:1.6}.arcade{background:#121c2d;border:1px solid #34415a;border-radius:18px;padding:20px;box-shadow:0 24px 80px #0005}.scores{display:flex;justify-content:space-between;align-items:center;padding:0 18px 16px;font-size:12px;letter-spacing:2px;color:#a5b3cd}.scores strong{font-size:32px;color:white;margin-left:20px}.scores>span{font-size:10px}.court{position:relative;border-radius:9px;overflow:hidden;border:1px solid #34415a;background:#090f1b}canvas{display:block;width:100%;height:auto}#overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;background:#090f1bdb;text-align:center;padding:20px}#overlay[hidden]{display:none}h2{font-size:38px;margin:10px}#hint{color:#afbdd3}footer{display:flex;justify-content:space-between;align-items:center;margin-top:16px}footer p{color:#b0bed3;font-size:13px}kbd{display:inline-block;padding:6px 9px;border:1px solid #40506c;border-radius:5px;font-size:12px}button{border:0;border-radius:8px;background:#adf574;color:#142209;font-size:14px;font-weight:bold;padding:13px 23px;cursor:pointer;margin-left:8px}button:hover{filter:brightness(1.1)}button:focus-visible{outline:3px solid white;outline-offset:3px}button.secondary{background:#28364b;color:white}button:disabled{opacity:.45;cursor:default}#status{font-size:12px;color:#aab9cf;margin:8px 0 0}.credit{font-size:10px;letter-spacing:2px;text-align:center;color:#7d8da7;margin:24px 0}@media(max-width:650px){main{padding:20px 14px}.badge{display:none}.intro{padding-top:25px}h1{font-size:40px}.intro>p:last-child{position:static;max-width:none}.arcade{padding:10px}.scores{padding:8px;font-size:9px}.scores strong{font-size:24px;margin-left:5px}footer{flex-wrap:wrap;gap:10px}button{margin-left:0}h2{font-size:26px}#hint{font-size:12px}.brand span{font-size:9px}}
:where(footer)>div{display:flex;flex-wrap:wrap;gap:8px}:where(footer)>div>button{margin-left:0}
.level-label{display:flex;align-items:center;gap:8px;color:#bdc9dd;font-size:12px}select{background:#28364b;color:white;border:1px solid #52617a;border-radius:7px;padding:10px;font:inherit}select:disabled{opacity:.65}footer{flex-wrap:wrap;gap:10px}
.course-return{display:inline-block;background:#adf574;color:#142209;padding:10px 16px;border-radius:8px;font-weight:bold;font-size:14px;text-decoration:none;margin-bottom:20px}.course-return[hidden]{display:none}.course-return:focus-visible{outline:3px solid white;outline-offset:4px}