body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #2c3e50;
    color: white;
    font-family: Arial, sans-serif;
}

#game-container {
    text-align: center;
}

#gameCanvas {
    border: 5px solid #ecf0f1;
    background-color: #000;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

#score {
    font-size: 24px;
    margin-bottom: 10px;
}

#game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.8);
    padding: 20px;
    border-radius: 10px;
    border: 2px solid white;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    background-color: #27ae60;
    color: white;
    border: none;
    border-radius: 5px;
}

button:hover {
    background-color: #2ecc71;
}