* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header,
footer {
    background: linear-gradient(135deg, #015329, #182D09);
    color: whitesmoke;
    text-align: center;
}

header {
    padding: 2rem;
}

footer {
    padding: 1rem;
    margin-top: auto;
}

footer p {
    margin-bottom: 0;
}

nav ul {
    list-style: none;
    padding: 0;
    text-align: center;
}

nav ul li {
    display: inline-block;
    margin: 0 10px;
}

nav a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin-bottom: 20px;
}

main {
    padding: 20px;
    flex: 1;
}

@media (min-width: 768px) {
    main {
        display: flex;
        align-items: flex-start;
        gap: 2rem;
        max-width: 1200px;
        margin: 0 auto;
    }

    img {
        width: 40%;
        order: 2;
        margin-bottom: 0;
    }

    article {
        width: 60%;
        order: 1;
    }
}