body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

#gameCanvas {
    width: 640px;
    height: 640px;
    display: block;
    border: 1px solid #000;
    background-color: white;
}

.score-display {
    font-family: Arial, sans-serif;
    font-size: 18px;
    padding: 8px 16px;
    background-color: white;
    border: 1px solid #000;
    border-radius: 5px;
    width: 100%;
    text-align: center;
    box-sizing: border-box;
}