body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 20px;
    background-color: #f4f4f4;
}

.chat-container {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 20px;
    color: #333;
}

.chat-box {
    display: flex;
    margin-top: 10px;
}

input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    outline: none;
}

button {
    padding: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-left: 10px;
}

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

#responseContainer {
    margin-top: 20px;
    padding: 10px;
    border: 1px solid #ddd;
    background-color: #f9f9f9;
    border-radius: 5px;
    min-height: 40px;
}

.error {
    color: red;
    font-weight: bold;
}

.radio-group {
    text-align: left;
    margin-top: 15px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: #f1f1f1;
}

.radio-group p {
    margin: 0 0 10px;
    font-weight: bold;
    color: #333;
}

.radio-group label {
    display: block;
    margin-bottom: 8px;
    cursor: pointer;
    font-size: 14px;
}

.radio-group input[type="radio"] {
    margin-right: 10px;
}