* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Roboto, sans-serif;
    line-height: 1.6;
    padding: 20px;
}

div.nav {
    padding: 10px;
}

div.nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

div.nav a {
    text-decoration: none;
    color: #333;
}

div.nav a:hover {
    text-decoration: underline;
}

div.secret {
    color: #fff;
}

footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #ccc;
    color: #999;
}