body {
    margin: 0;
    font-family: monospace;
    background-color: #0d1117;
    color: #c9d1d9;
}

header, footer {
    background-color: #161b22;
    padding: 1em;
    text-align: center;
}

h1 {
    margin: 0;
    font-size: 2.5em;
}

nav {
    background-color: #21262d;
    padding: 1em;
    text-align: center;
}

nav a {
    margin: 0 10px;
    color: #58a6ff;
    text-decoration: none;
}

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

main {
    padding: 2em;
    max-width: 800px;
    margin: auto;
}

section {
    margin-bottom: 2em;
}

a {
    color: #58a6ff;
}
aside {
    background-color: #111; /* même style sombre que ton site */
    padding: 10px;
    border-radius: 8px;
}