body {
    font-family: 'Arial', sans-serif;
    background-color: #eef2f7;
    color: #202020;
    padding: 20px;
}
button {
    margin: 5px;
    padding: 10px 14px;
    font-size: 14px;
}
#log {
    margin-top: 20px;
    background-color: #f5f9fc;
    padding: 10px;
    border: 1px solid #c0d6e4;
}
#mentor {
    margin-top: 10px;
    font-style: italic;
    color: #555;
}