body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 600px;
    margin: 100px auto;
    background-color: #ffffff;
    padding: 40px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    border-radius: 8px;
}

h1 {
    color: #333333;
    margin-bottom: 20px;
}

p {
    color: #666666;
    font-size: 1.1em;
    margin-bottom: 30px;
}

button {
    padding: 12px 24px;
    font-size: 1em;
    background-color: #007BFF;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

#result {
    margin-top: 20px;
    font-size: 1.2em;
    color: #28a745;
}

.info-box {
    margin-top: 30px;
    padding: 20px;
    border: 1px solid #dddddd;
    background-color: #f9f9f9;
    border-radius: 5px;
    text-align: left;
    /* Removed display: none; to allow visibility control via the hidden class */
}

.info-box h2 {
    margin-top: 0;
    color: #333333;
}

.info-box p {
    white-space: pre-wrap;
    color: #555555;
    font-family: monospace;
    font-size: 1em;
}

.hidden {
    display: none;
}