body {
    background: #121212;
    color: #ffffff;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 40px;
    max-width: 900px;
    margin: auto;
}
h1, h2, h3 {
    color: #f0f0f0;
}
a {
    color: #58a6ff;
    text-decoration: underline;
}
footer {
    margin-top: 50px;
    font-size: 0.8em;
    color: #888;
    text-align: center;
}