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

h1 {
    color: #333;
    text-align: center;
}

.container {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px; /* Set a fixed width */
}

label {
    display: block;
    margin: 10px 0;
}

.radio-group {
    display: flex;            /* Change to flexbox */
    justify-content: center; /* Center items horizontally */
}

.radio-group label {
    margin: 0 10px; /* Add margin between radio buttons */
}

button {
    margin: 10px 0;
    padding: 10px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%; /* Make button full width */
}

button:hover {
    background-color: #218838;
}

.output {
    margin-top: 20px;
    text-align: center; /* Center output text */
}