* {
    box-sizing: border-box;
    font-family: 'Raleway', sans-serif;
}

h1 {
    font-size: 2em;
}

h2 {
    font-size: 1.5em;
}

h3 {
    font-size: 1em;
}

body {
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    min-height: 100vh;
    background-color: #cfab7e;
    color: whitesmoke;
}

header {
    margin: 0;
    padding: .2em 1em;
    background-color: #1A3254;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

header img {
    height: 2.8em;
}

header nav {
    display: block;
}

header ul {
    list-style-type: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header ul li {
    padding: .5em 1em;
}

header a {
    text-decoration: none;
    color: white;
    font-weight: bold;
}

main {
    max-width: 60em;
}

main h1 {
    margin: .5em;
}

main #andres {
    display: flex;
    flex-direction: column;
    align-items: center;
}

main #andres img {
    border-radius: 50%;
    border: solid 0.2em;
    border-color: #1A3254;
    width: 50%;
    max-width: 30vh
}

main #andres h2 {
    margin-bottom: 0;
}

main #andres div {
    padding: 0em 1em;
    margin: 1em;
    width: 100%;
    display: flex;
    flex-direction: column;
}

main #integrantes {
    display:flex;
    flex-direction: column;
    align-items: center;
    background-color: #e7c597;
    border-radius: 1em;
    margin: 1em 2em;
}

main ul {
    list-style-type: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1em;
    margin: 0;
}


main #integrantes ul li {
    margin: .5em;
}

main #integrantes a {
    text-decoration: none;
    background-color: #1a3254;
    color: white;
    border-radius: .4em;
    padding: .4em;
}

main #datos-academicos {
    margin: 1em;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: black;
}

main #datos-academicos div {
    background-color: whitesmoke;
    box-shadow: .2em .2em rgba(170, 170, 170, 0.41);
    border-top-left-radius: 1em;
    border-top-right-radius: 1em;
    margin: 1em;
    width: 100%;
    max-width: 30em;
    display: flex;
    flex-direction: column;
    align-items: center;
}

main #datos-academicos img {
    width: 35vw;
    max-width: 9em;
}

footer {
    padding: 1.25em 2.5em;
    background-color: #1a3254;
    color: white;
}
/*---- MENU HEADER ----*/
#menu{
    display: none;
}

header label{
    display: none;
}

header label:hover{
    background: #002656;
    width: 2em;
}

.menuheader ul{
    list-style: none;
    display: flex;
}

.menuheader li{
    flex-grow: 1;
    /border-right: .2em solid #fff;/
}

.menuheader li:hover{
    background-color: #002656;
}

.menuheader li a{
    display: block;
    align-self: center;
    padding: 0.5em;
}


@media(max-width:494px){
    
    header label{
        display: block;
    }
    
    .menuheader{
        position: absolute;
        width: 70%;
        top: 4.7em;
        margin-left: -90%;
        background-color: #002656;
    }
    
    .menuheader ul{
        flex-direction: column;
                
    }
    
    #menu:checked ~ .menuheader{
        margin: 0;
    }
    
}

header label img{
    width: 2em;
    margin: .5em;
}

a:hover {
    color: #002656
}

header div nav {
    text-align: center;
    
}
*/

header div nav ul li {
    margin: 0 .5em 0 .5em
}

/*---- Fin MENU HEADER ----*/


<!---Mapa--->

main {
    
}

#mapa a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    padding: 1em;
}

.propuesta {
    padding: 0;
    margin: 1em;
}

.propuesta img {
    width: 100%;
    height: auto;
}

<!---Mapa--->

#mapa a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    padding: 1em;
}

<!---Plan--->

main {
    
}

#plan a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    padding: 1em;
}