:root{--accent:#d35400;--bg:#0b0b0b;--card:rgba(255,255,255,0.04)}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:#fff;display:flex;flex-direction:column;min-height:100vh}
header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:rgba(0,0,0,0.4)}
.game-wrap{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px}
canvas{background:linear-gradient(180deg,#071022, #00121a);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,0.6)}
.info{margin-top:12px;color:#cfcfcf}
.btn{background:var(--accent);color:#fff;padding:8px 14px;border-radius:10px;text-decoration:none}