:root{font-family:Press Start 2P;--dkClr:#181818;--liClr:whitesmoke;--accClr:#0D0D35}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%}body{background-color:var(--dkClr);color:var(--liClr);display:flex;flex-direction:column;min-height:100vh}header,footer{display:flex;justify-content:center;align-items:center;padding:40px 20px}main{flex:1;display:flex}#gameCanvas{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;z-index:1}