html, body {
  margin: 0;
  padding: 0;
  background: #111118;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: monospace;
}

.cabinet {
  position: relative;
  line-height: 0;
  border: 4px solid #2a2a3a;
  border-radius: 6px;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.8);
}

#game {
  width: 768px;   /* 256 x 3 */
  height: 720px;  /* 240 x 3 */
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #000;
}

.scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.18) 3px
  );
}

.hint {
  color: #666;
  font-size: 12px;
  margin-top: 12px;
}