body {
    font-family: 'Roboto', sans-serif;
    background-color: #f7f7f7;
    color: #333;
    padding: 20px;
    margin: 0;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

input[type="text"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    background-color: #0056b3;
    color: #fff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #003d82;
}

#responseDisplay {
    white-space: pre-wrap;
    background: #f4f4f4;
    border: 1px solid #ddd;
    padding: 10px;
    margin-top: 10px;
    border-radius: 4px;
}