body {
    margin: 0;
    overflow: hidden;
    font-family: Arial, sans-serif;
}

#score-display {
    position: absolute;
    top: 20px;
    left: 20px;
    color: white;
    font-size: 24px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

#instructions {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 18px;
    text-align: center;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

#game-over {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.8);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    color: white;
}

#game-over h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

#game-over button {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 10px 2px;
    cursor: pointer;
    border-radius: 5px;
}