* { margin:0; padding:0; box-sizing:border-box; }
html, body { width:100%; height:100%; overflow:hidden; background:#0a0a1a; transition: background 0.3s; }
body.light-mode { background:#b0d4e8; }
#canvas { display:block; width:100%; height:100%; image-rendering: pixelated; }
#footer-wrap { position:fixed; bottom:4px; width:100%; text-align:center; z-index:100; pointer-events:none; }
#footer-wrap a { pointer-events:auto; color:#d4a01788; font-family:'Rajdhani',sans-serif; font-size:11px; text-decoration:none; }
#footer-wrap a:hover { color:#d4a017; }

#touch-controls {
  display:none; position:fixed; bottom:0; left:0; width:100%; height:200px;
  z-index:50; pointer-events:none;
}
.touch-btn {
  position:absolute; pointer-events:auto;
  width:56px; height:56px; border-radius:50%;
  background:rgba(255,255,255,0.12); border:2px solid rgba(255,255,255,0.25);
  color:#fff; font-family:'Rajdhani',sans-serif; font-weight:700; font-size:14px;
  display:flex; align-items:center; justify-content:center;
  user-select:none; -webkit-user-select:none; touch-action:none;
}
.touch-btn:active { background:rgba(255,255,255,0.3); }
.touch-btn.large { width:68px; height:68px; font-size:16px; }

@media (pointer: coarse) {
  #touch-controls { display:block; }
}