body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    text-align: center;
    width: 80%;
    max-width: 600px;
}

h1 {
    color: #3498db;
    margin-bottom: 20px;
}

p {
    margin-bottom: 25px;
    color: #777;
}

button {
    padding: 12px 25px;
    font-size: 16px;
    color: #fff;
    background-color: #3498db;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #2980b9;
}

#data-output {
    margin-top: 30px;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: #f9f9f9;
    text-align: left;
    white-space: pre-wrap;
    font-family: monospace;
    font-size: 14px;
    color: #555;
}

#data-output h2 {
    color: #3498db;
    margin-top: 0;
}

nav {
    background-color: #333;
    padding: 10px 0;
    text-align: center;
    margin-bottom: 20px;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    padding: 10px 20px;
    border-radius: 5px;
    background-color: #3498db;
}

nav a:hover {
    background-color: #2980b9;
}