body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: #243632;
    background-color: #f3f6f5;
}

header, footer {
    padding: 15px;
    color: white;
    background-color: #164c49;
    text-align: center;
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px;
    background-color: #246b61;
}


main {
    max-width: 850px;
    margin: 20px auto;
    padding: 15px;
    background-color: white;
    border: 1px solid #d2dfdb;
}

li {
    margin: 12px 0;
}

img {
    width: 100%;
    border: 1px solid #d2dfdb;
}

@media (max-width: 600px) {
    main {
        margin: 10px;
    }
}


nav a {
    color: white;
    padding: 8px 12px;
    background-color: #164c49;
    text-decoration: none;
    border-radius: 5px;
}


button {
    padding: 10px 14px;
    color: white;
    background-color: #246b61;
    border: 0;
    border-radius: 5px;
    cursor: pointer;
}