@import url('https://fonts.googleapis.com/css?family=Roboto:300,400,900');

/* general */

*{
    margin: 0;
    padding: 0;
    text-decoration: none;
    box-sizing: border-box;
    
}

html{
    font-size: 100%;
    font-family: roboto, sans-serif;
}

body{
    font-size: 1rem;
    height: 100%;
    background: black;
}
    
a{
    text-decoration: none;
    color: white;
    font-size: 3rem;
}

ul li{
    list-style:none;
}

.contenedor{
    max-width: 1000px;
    margin: 0 auto;
    background: black;
    position: relative;
    background-image: url('../img/4a.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}


/* menu */


header{
    height: auto;
    position: relative;
    display: block;
    top: 0;
}

header img{
    width: 5rem;
    height: auto;
    
}


nav{
    max-width: 1000px;
    width: 100%;
    position: relative;
}

.menu{
    position: absolute;
    position: fixed;
    top: 0;
    
}

.menu ul{
    display: flex;
    justify-content: space-around;
    align-content: space-between;
    
}

.menu ul li{
    width: 25%;
}

header{
    padding: 0;
}

header a{
    text-decoration: none;
    font-family: 'Roboto', sans-serif;
    font-weight: 300;
}

nav ul{
    margin: 0;
}

nav ul li{
    text-align: center;
    background: rgba(0, 0, 0, 0);
    list-style:none;

}

nav ul li a{
    color: #fff;
    display: block;
    padding: 0.4rem;
    font-size: 0.9rem;
    background: rgba(0, 0, 0, 0);
    border-bottom: 2px solid rgba(0, 0, 0, 0);
}

nav ul li a:hover{
    color: white;
    border-bottom: 2px solid white;
    background-color: rgba(0, 0, 0, 0.31);
}

nav ul li:hover{
    text-align: center;
    color: #fff;
}

header nav ul{
    text-align: center;
    margin: 0 auto;
}

.center{
    vertical-align: bottom;
    text-align: center;
    z-index: 100;
    background: rgba(0, 0, 0, 0.87);
}

.center img{
    width: 12%;
    height: auto;
    vertical-align: bottom;
    display:block;
    margin:auto;
    padding-top: 3rem;
    padding-bottom: 1.5rem;
}

.titulo{
    padding: 0 0 1rem 0;
    font-size: 1.5rem;
    color: white;
}

.titulo-2{
    padding: 0 0 1rem 0;
    font-size: 1.5rem;
    color: #ffffff;
}

.subtitulo{
    padding: 0 0 1rem 0;
    font-size: 1.5rem;
    color: white;
}
   
    
.col{
    margin: 0 auto;
    text-align: center;
    width: 100%;
}
    
.col-50{
    width: 50%;
}    
    
.caja{
    display: flex;
    justify-content: center;
    padding: 0.3rem;
    padding-top: 1rem;
}
    
.flexbox-container {
  display: flex;
  justify-content: space-around;
  align-content: center;
}

.box{
    display: flex;
  justify-content: space-around;
  align-content: center;
    padding: 0rem;
}   
    

.celular{
}

    
.celular img{
    max-width: 40%;
    height: auto;
    display:block;
    margin: 0 auto;
}

.descarga{
    width: 100%;
    display:flex;
    justify-content: space-around;
    align-content: space-between;
}

.descarga img{
    width: 100%;
    height: auto;
    height: 100%;
    
    float: left;
    padding: 0.3rem;
    padding-bottom: auto;
    padding-top: auto;
    
}

.descarga{
    margin: 0 auto;
    justify-content: space-around;
    align-content: space-between;
}

.descarga p{
    color: white;
}

.columna{
    width: 100%;
    height: 100%;
    justify-content: space-around;
    align-content: space-between;
}

.columna a{
    text-align: center;
}

.columna-50{
    width: 50%;
    height: 100%;
    justify-content: space-around;
    align-content: space-between;
}


.row{
    margin-bottom: 2rem;
    margin-top: 2rem;
    background: rgba(57, 57, 57, 0.96);
}

.row::after {
    content: "";
    clear: both;
    display: table;
}
[class*="col-"] {
    float: left;
    padding: 15px;
}
/* footer */ 

footer{
    display: block;
    bottom: 0;
    left: 0;
    padding: 1rem 2rem;
    background: #393939;
    color: #555555;
}




.cont-video{
    padding: 0.1rem;
    display: block;
    margin: auto;
    background: rgba(85, 85, 85, 0.6);
    display: block;
    width: 80%;
    height: auto;
}

.vid-contenedor{
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    position: relative;
    
}
.vid-contenedor video{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.row .cont-video{
    margin: 0 auto;
    display: block;
}

/* media query */

/* For mobile phones: */
[class*="col-"] {
    width: 100%;
}
@media only screen and (min-width: 600px) {
    /* For tablets: */
    .col-s-1 {width: 8.33%;}
    .col-s-2 {width: 16.66%;}
    .col-s-3 {width: 25%;}
    .col-s-4 {width: 33.33%;}
    .col-s-5 {width: 41.66%;}
    .col-s-6 {width: 50%;}
    .col-s-7 {width: 58.33%;}
    .col-s-8 {width: 66.66%;}
    .col-s-9 {width: 75%;}
    .col-s-10 {width: 83.33%;}
    .col-s-11 {width: 91.66%;}
    .col-s-12 {width: 100%;}
}
@media only screen and (min-width: 768px) {
    /* For desktop: */
    .col-1 {width: 8.33%;}
    .col-2 {width: 16.66%;}
    .col-3 {width: 25%;}
    .col-4 {width: 33.33%;}
    .col-5 {width: 41.66%;}
    .col-6 {width: 50%;}
    .col-7 {width: 58.33%;}
    .col-8 {width: 66.66%;}
    .col-9 {width: 75%;}
    .col-10 {width: 83.33%;}
    .col-11 {width: 91.66%;}
    .col-12 {width: 100%;}
    
}