body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #0d1117;
    color: #f0f6fc;
}
header {
    text-align: center;
    padding: 2rem;
    background-color: #161b22;
}
h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}
main {
    padding: 2rem;
}
section {
    margin-bottom: 2rem;
}
a {
    color: #58a6ff;
    text-decoration: none;
}
footer {
    text-align: center;
    padding: 1rem;
    background-color: #161b22;
    font-size: 0.9rem;
}