*{box-sizing:border-box;margin:0}html,body{height:100%}
body{background:#000;color:#ededed;font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;display:flex;flex-direction:column}
.mono{font-family:ui-monospace,Menlo,monospace}
header{display:flex;align-items:center;gap:12px;height:56px;padding:0 20px;border-bottom:1px solid #262626;flex:none}
.tag{font:12px ui-monospace,Menlo,monospace;color:#f1a10d;border:1px solid #3a3a3a;border-radius:99px;padding:2px 9px}
#timer{margin-left:auto;color:#a1a1a1;font-size:13px}
main{flex:1;display:grid;grid-template-columns:340px 1fr;min-height:0}
aside{padding:28px 24px;border-right:1px solid #262626;overflow:auto}
.eyebrow{font-size:12px;color:#a1a1a1}h1{font-size:27px;line-height:1.12;letter-spacing:-.035em;font-weight:600;margin:8px 0 12px}
#brief{color:#a1a1a1;margin-bottom:22px}
button{width:100%;height:40px;border-radius:8px;border:1px solid #3a3a3a;background:#0a0a0a;color:#ededed;font:500 14px inherit;cursor:pointer}
button:hover{border-color:#666}button:disabled{opacity:.55;cursor:wait}
button.primary{background:#fff;color:#000;border-color:#fff}button.primary:hover{background:#d4d4d4}
button:focus-visible{outline:2px solid #fff;outline-offset:2px}
#result{min-height:22px;margin:12px 0;font-size:14px}.good{color:#62c073}.bad{color:#ff6369}
#hints{padding-left:20px;margin:14px 0;color:#c8c8c8;font-size:14px}#hints li{margin-bottom:9px}
.row{display:flex;gap:8px;margin-top:14px}#status{margin-top:14px;color:#a1a1a1;font-size:14px}
#terminal{position:relative;background:#0a0a0a;padding:12px;min-width:0;min-height:0}
#empty{position:absolute;inset:0;display:grid;place-items:center;color:#737373;font-size:14px}
[hidden]{display:none!important}
@media(max-width:800px){main{grid-template-columns:1fr;grid-template-rows:auto 60vh}aside{border-right:0;border-bottom:1px solid #262626}}
#labs{list-style:none;padding:0;margin:12px 0 26px;border-top:1px solid #262626}
#labs button{all:unset;box-sizing:border-box;display:flex;gap:10px;align-items:center;width:100%;padding:9px 2px;border-bottom:1px solid #262626;color:#a1a1a1;font-size:14px;cursor:pointer}
#labs button:hover:not(:disabled){color:#fff}#labs button[aria-current=true]{color:#fff;font-weight:500}#labs button:disabled{cursor:not-allowed;opacity:.6}
#labs button:focus-visible{outline:2px solid #fff;outline-offset:-2px}
#labs .n{font:12px ui-monospace,Menlo,monospace;color:#737373;width:22px}#labs .d{margin-left:auto;color:#62c073;font-size:13px}
#hints li{white-space:pre-wrap}#solution{margin-top:12px;color:#c8c8c8;font-size:14px;border:1px solid #262626;border-radius:8px;padding:10px 12px}
.signin{display:inline-block;margin-top:8px;padding:10px 18px;border-radius:8px;background:#fff;color:#000;text-decoration:none;font-weight:500}