body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #000;
    font-family: Arial, sans-serif;
    color: white;
}

#game-container {
    position: relative;
    border: 2px solid #fff;
}

#game-canvas {
    display: block;
    background-color: #001122;
}

#ui {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    gap: 20px;
}

#score, #lives {
    font-size: 18px;
    font-weight: bold;
}