/* Game Layout */
html, body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    height: 100%;
    background: #0a0a0a;
}

#game-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #0a0a0a;
}

#game-canvas {
    display: block;
    width: 100%;
    height: 100%;
    touch-action: none; /* prevent browser gestures */
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}