body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: black;
    overflow: hidden;
}

#gameContainer {
    text-align: center;
    padding: 20px;
    color: white;
}

canvas {
    border: 3px solid white;
    border-radius: 10px;
    max-width: 100%;
}