@charset "utf-8";

* {
    margin: 0;
    padding: 0;
    border: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
}

#pagina {
    max-width: 75em;   
    margin: 0 auto;
}

header, main, footer {
    padding: 1em;   
}

header {
    background-color: rgba(0,0,255,0.1);
}

#logo {
    width: 14em;
    height: 5em;
}

#logo img {
    max-width: 100%;
    height: auto;
}

header nav ul {
    list-style: none;
}

header nav ul li a {
    display: block;
    background-color: white;
    padding: 0.5em;
    line-height: 1em;
    font-weight: bold;
    color: black;
    text-decoration: none;
}

header nav ul li a:hover {
    background-color: limegreen;
}

main {
    background-color: darkgrey;  
}

main h1 {
    font-family: "Times New Roman", serif;   
}

main h3 {
    margin-bottom: 0.5em;
}

main figure {
    width: 60%;
    margin: auto;
    margin-top: 0.5em;
}

main figure img {
    max-width: 100%;
    height: auto;
}

footer {
    background-color: lightskyblue;   
}

footer p {
    font-size: 0.8em;   
}

@media screen and (min-width: 40em) {
    
    #pagina {
        max-width: 85%;
    }

    header {
        overflow: auto;
    }

    nav ul li {
        float: left;
        margin-right: 0.5em;
    }

    main {
        overflow: auto;
    }

    main article {
        width: 60%;
        float: left;
    }
    
    main figure {
        width: 30%;
        float: right;
    }
    
}