body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f7f7f7;
    color: #222;
}

nav {
    display: flex;
    justify-content: space-around;
    background-color: #333;
    padding: 0.5em 0;
}

nav a {
    color: white;
    font-size: 1.2em;
    text-decoration: none;
    padding: 0.5em;
    transition: background 0.2s;
}

nav a:hover {
    background: #555;
}

h1, h2 {
    font-weight: normal;
    margin: 1em;
}

main {
    padding: 1em;
}

footer {
    text-align: center;
    font-size: 0.8em;
    color: #888;
    padding: 1em;
}

@media (max-width: 600px) {
    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5em;
    }

    nav a {
        padding: 0.4em;
        font-size: 1em;
        flex: 0 1 auto;
        border: none;
        width: auto;
    }
}