body{margin:0;overflow:hidden}#gameCanvas{width:100vw;height:100vh;display:block}#loading-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;color:#fff;display:flex;justify-content:center;align-items:center;font-family:Arial;z-index:1000}#game-buttons{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:100;display:flex;gap:10px}#startGameButton,#startMutedButton,#startMobileButton{padding:10px 20px;font-size:1.2em;cursor:pointer;background-color:#4caf50;color:#fff;border:none;border-radius:5px}#startMutedButton{background-color:#2196f3}#startMobileButton{background-color:#ff9800}#startGameButton:hover,#startMutedButton:hover,#startMobileButton:hover{opacity:.9}