body {
    font-family: 'Cormorant Upright', serif;
    font-weight: 500;
    font-size: 1.8rem;
    margin: 0;
    padding: 0;
    background-image: url(montagnes.jpg);
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: #333;
    line-height: 1.6;
}

header {
    background: #2b8b83;
    color: white;
    text-align: center;
    padding: 20px;
}

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

nav ul li {
    display: inline-block;
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease-in-out;
}

nav ul li a:hover {
    color: #014640;
}

main {
    padding: 40px;
}

section {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background: rgba(57, 182, 172, 0.7);
    box-shadow: 0px 0px 10px rgba(4, 97, 74, 0.3);
    border-radius: 10px;
    color: #015851;
    text-align: center;
}

section h2 {
    color: #014640;
    text-align: center;
    margin-bottom: 10px;
}

ul {
    padding-left: 20px;
    list-style-type: square;
}

footer {
    background: #2b8b83;
    color: white;
    text-align: center;
    padding: 10px;
    margin-top: 20px;
}

img {
    width: 300px;
    height: auto;
    display: block;
    margin: 10px auto;
}

@media screen and (max-width: 768px) {
    body {
        font-size: 1.6rem;
    }

    header {
        padding: 15px;
    }

    nav ul {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

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

    main {
        padding: 20px;
    }

    section {
        padding: 15px;
        max-width: 100%;
    }
}

@media screen and (max-width: 480px) {
    body {
        font-size: 1.4rem;
    }

    header {
        padding: 10px;
    }

    nav ul li {
        margin: 5px 0;
    }

    section {
        padding: 10px;
        margin: 10px;
    }

    main {
        padding: 15px;
    }
}