body {
    font-family: system-ui, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #fff;
    color: #222;
}

main {
    max-width: 700px;
    margin: 2rem auto;
    padding: 1rem;
}

h1, h2, h3 {
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

p {
    margin: 1.8em 0;
}

a {
    color: #0074d9;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 1.5em auto;
    border-radius: 6px;
    object-fit: contain;
}

@media (max-width: 800px) {
    main {
        max-width: 98vw;
        margin: 1rem;
        padding: 0.5rem;
    }
    body {
        font-size: 1rem;
    }
    img {
        margin: 1em auto;
    }
}