body {
    font-family: Arial, sans-serif;
    background-color: #121212;
    color: #f0f0f0;
    margin: 0;
    padding: 0;
}
header {
    background-color: #1f1f1f;
    padding: 1rem;
    text-align: center;
}
section {
    padding: 1rem 2rem;
}
article {
    margin-bottom: 1rem;
}
h1, h2, h3 {
    color: #ffcc00;
}
footer {
    text-align: center;
    padding: 1rem;
    background-color: #1f1f1f;
    color: #888;
}