body { margin:0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial; background:#222; color:#fff; display:flex; align-items:center; justify-content:center; height:100vh; }
.game { display:flex; gap:20px; align-items:flex-start; }
canvas { background:#111; border: 4px solid #333; image-rendering: pixelated; }
.sidebar { width:220px; }
.sidebar h1 { margin:0 0 10px; font-size:24px; }
.controls ul { margin:0; padding-left:20px; }
#restart { margin-top:10px; padding:8px 12px; background:#0a84ff; color:#fff; border:none; border-radius:4px; cursor:pointer; }
#restart:disabled { opacity:0.5; cursor:default; }