body {
    font-family: Arial, sans-serif;
    background-color: #282c34;
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    overflow: hidden;
}

.content {
    background-color: #3a3f47;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    text-align: center;
    max-width: 600px;
    width: 90%;
}

.hidden {
    display: none;
}

p {
    font-size: 18px;
    margin-bottom: 15px;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 18px;
    margin-top: 10px;
}

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

#answer {
    font-size: 18px;
    margin-top: 15px;
    color: #4caf50;
    font-weight: bold;
}
h1 {
    font-size: 36px;
    color: #4caf50;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    margin-bottom: 20px;
}