body {
    display: flex;
    margin: 0;
    font-family: system-ui, sans-serif;
    background: #0d1117;
    color: #c9d1d9;
}

nav {
    width: 250px;
    background: #161b22;
    padding: 1rem;
    height: 100vh;
    overflow-y: auto;
    position: sticky;
    top: 0;
}

nav a {
    display: block;
    color: #8b949e;
    text-decoration: none;
    margin: 0.5rem 0;
}

nav a:hover {
    color: #fff;
}

main {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

h1, h2, h3 {
    color: #fff;
}

code {
    background: #21262d;
    padding: 2px 5px;
    border-radius: 4px;
}

pre {
    background: #161b22;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
}

img {
    width: 40%;
}