body {
    font-family: Arial, sans-serif;
    background: #0a0a0a;
    color: #f1f1f1;
    margin: 0;
}
header {
    background: #161616;
    padding: 2em 1em;
    text-align: center;
}
nav a {
    color: #ad0000;
    text-decoration: none;
    margin: 0 1em;
}
main {
    max-width: 680px;
    margin: 2em auto;
    padding: 1em;
    background: #222;
    box-shadow: 0 0 12px #222;
}
h1, h2 {
    color: #ad0000;
}
ul {
    list-style-type: square;
}
footer {
    text-align: center;
    padding: 1em;
    background: #222;
    color: #777;
    font-size: 0.85em;
}