body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    color: #333;
    background-color: #fcfcfc;
}
header {
    border-bottom: 2px solid #eaeaea;
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}
h1 {
    margin-bottom: 0.2rem;
    color: #111;
}
h2 {
    color: #222;
    margin-top: 2rem;
}
ul {
    padding-left: 1.5rem;
}
li {
    margin-bottom: 0.5rem;
}
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #e0e0e0;
    }
    h1, h2 {
        color: #ffffff;
    }
    header {
        border-bottom: 2px solid #333;
    }
}