body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.game-container {
    text-align: center;
    background-color: #ffffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

canvas {
    image-rendering: pixelated;
    border: 2px solid #000;
    background-color: #ffffff;
}

#score {
    font-size: 20px;
    margin: 10px 0;
}

#instructions {
    font-size: 16px;
    color: #ffffff;
}

/* Game Over Screen */
#game-over-screen {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(255, 255, 255, 0.9);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

#game-over-screen.hidden {
    display: none;
}

#game-over-screen h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

#final-score {
    font-size: 20px;
    margin-bottom: 20px;
}

#game-over-screen button {
    font-size: 16px;
    padding: 10px 20px;
    margin: 5px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
}

#game-over-screen button:hover {
    background-color: #0056b3;
}

#game-over-screen button#quit {
    background-color: #dc3545;
}

#game-over-screen button#quit:hover {
    background-color: #a71d2a;
}