body {
    font-family: Arial, sans-serif;
    margin: 2rem auto;
    max-width: 800px;
    line-height: 1.6;
    background: #fdfdfd;
    color: #333;
    padding: 0 1rem;
}

h1, h2, h3 {
    color: #2c3e50;
    line-height: 1.2;
}

a {
    color: #0366d6;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem auto;
}