body {
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: #f7f7f7;
    font-family: 'Arial', sans-serif;
}

.game-container {
    position: relative;
}

#score {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 20px;
    font-weight: bold;
}

canvas {
    border: 1px solid #d3d3d3;
    background-color: white;
}

.instructions {
    margin-top: 20px;
    color: #555;
}