*{box-sizing:border-box;touch-action:none}html,body{width:100%;height:100%;margin:0;overflow:hidden;background:#070d1d;color:#eef3ff;font:14px system-ui,sans-serif}canvas{position:absolute}header,footer,#status{position:fixed;z-index:3;left:0;right:0;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 16px;background:linear-gradient(#070d1dee,#070d1d88,transparent);pointer-events:none}header{top:0}strong{letter-spacing:3px;color:#ffdb76}strong span{font-size:11px;letter-spacing:1px;color:#a5b4d0;margin-left:8px}nav{display:flex;gap:6px}button,a{pointer-events:auto}button{min-height:40px;background:#152b45d9;border:1px solid #53739c;border-radius:8px;color:#f3f7ff;padding:6px 12px;font:inherit;cursor:pointer}button:active{background:#317c90}button:focus-visible{outline:3px solid #ffd978}#status{top:48px;justify-content:center;margin:0;background:none;font-size:12px;text-shadow:0 2px 3px #000}footer{bottom:0;align-items:flex-end;background:linear-gradient(transparent,#070d1dcc)}.pad,.actions{display:flex;align-items:center;gap:6px;pointer-events:auto}.pad>div{display:grid;gap:4px}.pad button{width:44px}.actions button{min-height:48px}#help{position:fixed;z-index:5;inset:80px max(12px,calc((100vw - 620px)/2)) 115px;background:#101e34f5;border:1px solid #6885aa;border-radius:18px;padding:18px 24px;overflow:auto;touch-action:pan-y}#help[hidden]{display:none}#help h1{font-size:25px;color:#ffdb76}#help p{line-height:1.6}a{color:#8edce5}@media(max-width:600px){strong span{display:none}header{padding:8px}button{padding:5px 8px}.pad button{width:36px}.actions{gap:4px}.actions button{font-size:11px}footer{padding:8px;gap:4px}#help{padding:15px;inset:68px 10px 110px}#help h1{font-size:20px}}