body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #87CEEB;
    font-family: Arial, sans-serif;
}

.game-container {
    text-align: center;
    position: relative;
}

h1 {
    color: #333;
    margin-bottom: 10px;
}

canvas {
    border: 2px solid #333;
    background-color: #fff;
    display: block;
    margin: 0 auto;
    max-width: 100%;
    height: auto;
    width: 100%;
    max-width: 400px;
}

#score {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-top: 10px;
}

#countdown {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    font-weight: bold;
    color: #333;
    text-align: center;
}

#gameOver {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

#gameOver.hidden {
    display: none;
}

#restartBtn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 18px;
    cursor: pointer;
    border-radius: 5px;
    margin-top: 10px;
}

#restartBtn:hover {
    background-color: #45a049;
}

p {
    margin-top: 10px;
    color: #555;
}