body{font-family:Arial,sans-serif;text-align:center;background:#f0f0f0}#controls{margin:20px}#banner-link{display:block;text-align:center;margin-top:10px;margin-bottom:10px}#grid{display:grid;gap:6px;margin:20px auto;width:fit-content}.tile{width:80px;height:80px;border-radius:5px;display:flex;justify-content:center;align-items:center;font-weight:700;color:#000;font-size:16px;position:relative;background-color:#ccc}.tile.target-bay{animation:flash 1s infinite}.car-number{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(0,0,0,.5);color:#fff;padding:3px 6px;border-radius:3px;font-size:1.3rem;z-index:10}.arrow{position:absolute;font-size:18px;width:20px;height:20px;text-align:center;line-height:20px;color:#000;cursor:pointer;background:0 0}.arrow.up{top:-6px;left:30px}.arrow.down{bottom:-6px;left:30px}.arrow.left{left:-6px;top:30px}.arrow.right{right:-6px;top:30px}#message{font-size:1.2em;margin-top:20px}