body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 600px;
}

h1 {
    color: #007bff;
    margin-bottom: 20px;
}

button {
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    cursor: pointer;
    margin-top: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

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

select {
    padding: 8px;
    font-size: 16px;
    margin-top: 10px;
    border-radius: 5px;
}

#dns-result {
    margin-bottom: 20px;
}

#generated-dns {
    margin-top: 20px;
    border-top: 1px solid #ddd;
    padding-top: 20px;
}