* {
    box-sizing: border-box;
}
body {
    margin: 0px;
    padding: 0px;
  font-family: "Roboto", Ubuntu, 'Open Sans', sans-serif;
  background-color: black;
  min-height: 100vh;
  /* correccion paraq chrome en cel */
  min-height: -webkit-fill-available;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
}
li,
h1, 
h2,
h3,
h4,
h5,
h6 {
    color: white;
    font-family: "Roboto", Open Sans , sans-serif;
    margin-bottom: 0.3em;
}
p{ 
    color: rgb(216, 216, 216);
    font-size: x-small;
    margin-bottom: 1em;
}
html {
    height: -webkit-fill-available;
}
img {
    max-width: 100%;
    height: auto;
}

.contenido {
    width: 100%;
}
/*_______ENCABEZADO______*/
header {
    background-color:black;
    padding-top: 2px;
    padding-bottom: 2em;
    padding-left: 2.5em;
    padding-right: 2.5em;    
    flex-grow: 0;
    border: white;
}
header .contenido{ 
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
}

.encabezado{
    padding: 10px 30px;
    position: fixed;
    top: 0;
    width: 100%;
}

.navBar{
    width: 100%;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}

.logo{
    width: 80px;
    height: 45px;

    padding-top: 5px;
}
#logo {
    max-width: 100%;  
    height: auto;
} 
/*_______MENÚ______*/
.menu{
    width: 60%;
    height: auto;

    margin: 0px;
    padding: 0px;
    padding-top: 60px;

    display: flex;
    flex-direction: column;
    align-items: center;
}

.menuEscondido{
    width: 60%;
    height: auto;

    margin: 0px;
    padding: 0px;
    padding-top: 60px;
    
    display: none;
}

header ul li {
    margin: 5px 0px;

    display: flex;
    flex-wrap: nowrap;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}
header nav ul li a {
    color: white;
    font-weight: bold;
    padding: .25em .5em;
    text-align: center;
    text-decoration: none;
    display: block;
}
header nav ul li a:hover {
    background-color: white;
    color: #000000;
}

.btn-verNavbar{
    width: 38px;
    height: 38px;
    padding: 5px 3px 5px 3px;

    background-color: transparent;
    border-color: transparent;
    color: white;
    font-size: 21px;
}

/*__________________________CUERPO______________________*/
main {
    background-color: black;
    margin: 80px 40px 20px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.intro {
    display: flex;
    flex-wrap: wrap;
    flex-direction: row-reverse;
    justify-content: space-evenly;
    align-items: center;
    padding: 10px 0px;
    max-width: 340px;
}
.intro h1 {
    font-size: 20PT;
    font-weight: bold;
    
}
.intro h2 {
    font-size: medium;
    font-weight: lighter;

}
.intro img {
    border-radius: 60%;
    width: 14em;
    height: auto;
    padding: 10px 0px;
}
.historial{
    max-width: 900px;
    text-align: left;
}
.historial h2{
    font-size: medium;  
}
.historial h3{
    font-size: medium;
    font-weight: 300;
    font-variant: small-caps;  
    letter-spacing: 0.1em;
}
.historial li{
    font-size: small;
}
.historial ul{
    padding: 0px 20px;
}
.propuesta {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 10px 0px;
}

.propuesta h1 {
    font-size: medium;
    font-weight: bold;
}
.propuesta h2{
    font-size: 11pt;
    font-weight: lighter;
    padding: 0px 5px;

}
.propuesta img {
    max-width: 8em;
    max-height: auto;
    padding: 10px 3px;
}
.img{
    max-width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-evenly;
}

/*_______PIE______*/
#footer {
    background-color:black;
    padding-left: 1em;
    padding-right: 1em;
    padding-top: 1em;
    max-width: 100%;
    height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.academico{
    width: 300px;
    text-align: center;
}
.materia, .catedra {
    margin: 10px 0px;
    font-size: small;
    font-weight: bold;
}

.legales {
    width: 300px;
    height: auto;
    text-align: justify;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-evenly;
    align-items: center;  
}

.legales img {
    width: auto;
    height: auto;
    max-width: auto;
    max-height: 2em;  
    margin: 0.5em 0em;
}
.derechosreservados{
    width: 100%;
    margin: 1em;
    text-align: center;
}
                             
/*______________MEDIA QUERIES______________*/


/* a partir de los 640px */
@media(min-width: 640px) {

    /* menu visible */
    nav ul {
        display: flex;
    }
    .menu-btn {
        display: none;
    }
    .legales{
        width: 415px;
    }
    .intro {
        text-indent: 2em;
        max-width: 740px;
    }
    .propuesta img {
        max-width: 11em;
    } 
    main {
        margin: 80px 80px 20px 80px;
    }
}

/* a partir de los 800px */
@media(min-width: 800px) {

    .btn-verNavbar{
        display: none;
    }
    .menu{
        width: 50%;
        padding-top: 5px;
        display: flex;
        flex-direction: row;
        justify-content: space-evenly;
    }
    .menuEscondido{
        width: 50%;
        padding-top: 5px;
        display: flex;
        flex-direction: row;
        justify-content: space-evenly;
    }
    #footer{
        flex-flow: row wrap;
        justify-content: space-between;
        }
    .academico{
        padding-left: 30px;
        text-align: start;
        width: 25sem;
    }
    .legales{
        width: 250px;
    }
    main {
        margin: 80px 110px 20px 110px;
    }
    .historial li{
        display: inline;
    }
    .historial{
        line-height: 1.2em;
        text-align: justify;
        width: 500px;
    }
    .historial h2{
        text-align: center;  
    }
}

/* a partir de los 1200px */
@media(min-width: 1200px) {

    .menu, .menuEscondido{
        width: 30%;
    }
 /* ------ PIE DE PAGINA ------- */
    footer {
        width: unset;
    }

    footer #footer {
        width: 100%;
        display: unset;
        display: flex;
        flex-direction: column;
        justify-content: space-evenly;
        align-items: center;
    }

    #footer{
        padding: 10px 120px;
    }
    .academico{
        width: 550px;
    } 
    .img {
        flex-wrap: nowrap;
    }
    .historial li{
        font-size: 8pt;
    }
    
}