:root { --ink:#0c1212; --accent:#c9ff4d; --accent-2:#f75ad4; }
.game-shell { background:#111b1a; }
.game-shell::before {
  content:"";
  position:absolute;
  z-index:4;
  inset:0;
  pointer-events:none;
  opacity:.1;
  background:repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,255,255,.65) 4px);
  mix-blend-mode:overlay;
}
canvas { image-rendering:pixelated; }