* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body {
    color: #444;
    font-family: 'Lato', sans-serif;   
    overflow-x: hidden;
}
html {
    scroll-behavior: smooth;
}
p{
    font-size:1.5rem;   
}






header{
    background-color: #fff;
    background-attachment: fixed;
    box-shadow: 0 0 10px;
}
.espacio1{
    padding-top: 50px;
    padding-bottom: 50px;
}
.fondo1{
    background-color: #e5f7fd;
}
.fondo2{
    background: rgb(6,117,185);
    background: linear-gradient(124deg, rgba(6,117,185,1) 0%, rgba(229,247,253,1) 6%, rgba(229,247,253,1) 93%, rgba(6,117,185,1) 100%);
}

.intro-banner {
    height: 100vh;
    /*500*/
    min-height: 1000px;
    background-image: url('../imagenes/bannerintro.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    /*box-shadow: 0px 10px 10px -3px #fff;*/
}
.introimagen img{
    width: 100%;
    filter: grayscale(.4);
    transition: 0.3s;
}
.introimagen img:hover{
 filter:none;        
 transform: scale(1.2);
}
a:hover{
    text-decoration:none;
    color:#0a75b8;  
}   
h1{
    margin-top:120px;
    letter-spacing: 2px;
}
.display-2 {
    word-wrap: break-word;
    text-shadow: 5px 5px 20px rgba(0, 0, 0, 0.5) ;
} 
.negrita{
    font-weight: bolder;
}
.titlibro{
    font-size: 1.2 rem;
    font-weight: bold;
    color:#0a75b8;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; 
    padding-top: 30px; 
    height: 0;
    overflow: hidden;
    margin-bottom: 20px;
    margin-top: 20px;
}
.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.color1{
  color: #000; 
  font-weight: bold;
}
.color2{
  color: #000; 
  font-weight: normal;
}
.pie{
  padding-top: 40px;
  padding-bottom: 40px;
  border-top: 2px dotted #000;
  text-align: center;
  color: #ffffff;
  margin-bottom: -70px;
  background-color: #E5F7FD;
} 

#scrollTopButton {
    display: none; 
    position: sticky; 
    bottom: 20px; 
    right: 30px; 
    z-index: 99; 
    border: solid 1px white; 
    outline: none; 
    background-color: #EB1F25; 
    color: #fff; 
    cursor: pointer; 
    padding: 5px 15px; 
    border-radius: 10px; 
    font-size: 1.8rem; 
    float: right;
}
#scrollTopButton:hover {
    background-color: #131313; 
}


.btn1 {
    cursor: pointer;
    padding:20px;
    font-family: 'Lato', sans-serif;   
    font-size: 2.3rem;
    position: relative;
    border: 3px solid #ffffff;  
	box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.8); 
    border-top-left-radius: 7px; -webkit-border-top-left-radius: 7px; -moz-border-top-left-radius: 7px; 
	border-top-right-radius: 5px; -webkit-border-top-right-radius: 5px; -moz-border-top-right-radius: 5px; 
	border-bottom-left-radius: 5px; -webkit-border-bottom-left-radius: 5px; -moz-border-bottom-left-radius: 5px; 
	border-bottom-right-radius: 7px; -webkit-border-bottom-right-radius: 5px; -moz-border-bottom-right-radius: 5px; 
    color: #000;
    box-sizing: border-box;
    background-color: #fff;
    text-align: center;
    white-space: nowrap;
}
.btn1--border::after, .btn1--border::before, .btn1--border span::after, .btn1--border span::before {
    content: "";
    position: absolute;
    background-color: #fff;
    transition: 0.5s ease;
}
.btn1--border::after, .btn1--border::before {
    height: 100%;
    width: 2px;
    top: -2px;
}
.btn1--border::after {
    left: -2px;
}
.btn1--border::before {
    right: -2px;
}
.btn1--border span::after, .btn1--border span::before {
    height: 2px;
    width: 100%;
    left: -2px;
}
.btn1--border span::after {
    top: -2px;
}
.btn1--border span::before {
    bottom: -2px;
}
.btn1--border:hover:after {
    transform: translatex(-12px);
}
.btn1--border:hover:before {
    transform: translatex(12px);
}
.btn1--border:hover span::after {
    transform: translatey(-12px);
}
.btn1--border:hover span::before {
    transform: translatey(12px);
}


.ingresar {
    overflow:hidden;
    position:relative;
    margin-top:40px;
    letter-spacing: 3px;
    width:250px;
    height:60px;
    line-height:40px;
    background-color:#0a75b8;
    border:2px solid #fff;
    color:#fff;
    text-align:center;
    text-decoration:none;
    transition:all ease-in 0.2s;
    font-family: 'Lato', sans-serif;   
    font-size:24px;
    border-radius: 24px;
    box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.5)  ; 
}
.ingresar span {
    position:relative;
    transition:color .25s ease-out;
    -webkit-transition:color .5s ease-out;
    -moz-transition:color .5s ease-out;
}
.ingresar:hover span {
    color:#fff; 
}
.ingresar .hover {
   position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background-color: #17a955;    
   transform:scale(1,0);
    -webkit-transform:scale(1,0);
    -moz-transform:scale(1,0);
    -ms-transform:scale(1,0);
    transform-origin:center top;
    -webkit-transform-origin:center top;
    -moz-transform-origin:center top;
    -ms-transform-origin:center top;
   transition:all .2s ease-out;
    -webkit-transition:all .2s ease-out;
    -moz-transition:all .2s ease-out;
}
.ingresar:hover .hover {
   transform:scale(1,1);
   -webkit-transform:scale(1,1);
   -moz-transform:scale(1,1);
   -ms-transform:scale(1,1);
}



/*seccion libros*/

.parrafo1{
    font-size:1.2em;
  }
  .fondo_datos {
    background-color: #dfdcd4 !important;
    padding-block-start: 1px;
    padding-bottom: 20px;
  }
  .card-libro {
    position: relative;
    cursor: pointer;
    margin: 20px 50px 100px 50px;
    width: 300px;
    height: 400px;
    background: #fff;
    transform-style: preserve-3d;
    transform: perspective(2000px);
    transition: 1s;
    box-shadow: inset 100px 0 50px rgba(0, 0, 0, 0.5);
  }
  .card-libro:hover {
    transform: perspective(2000px) rotate(-10deg);
    box-shadow: inset 20px 0 50px rgba(0, 0, 0, 0.5);
  }
  .card-libro .img-container {
    position: relative;
    width: 100%;
    height: 100%;
    border: 1px solid #000;
    box-sizing: border-box;
    transform-origin: left;
    z-index: 1;
    transition: 1s;
  }
  .card-libro .img-container img {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    object-fit: cover;
  }
  /*controlar el hover del libro*/
  .img-container:hover img{
    transform: rotateY(90deg) translateZ(100px);
    transform: rotate(180deg);
    transform-origin: center;
  }
  /*controla el hover del libro*/
  .card-libro:hover .img-container {
    transform: rotateY(-135deg);   
    filter: grayscale(60%);
  }
  .card-libro .card-details {
    position: absolute;
    left: 0;
    top: 0;
    box-sizing: border-box;
    padding: 20px;
    color: #000;
  }
  .card-libro .card-details h2 {
    margin: 0;
    padding: 0.5em 0;
    text-transform: uppercase;
    font-size: 2em;
    color: #008081;
  }
  .card-libro .card-details p {
    margin: 0;
    padding: 0;
    line-height: 25px;
    font-size: 1.3rem;
  }
  .letra1{
    font-size: 1.3rem !important; 
  }
  
  
   
  
 


/*celular1 cuadrado*/
@media screen and (max-width: 576px) {  
    .display-2 {
        color:#fff;
        font-size: 2.5rem !important;
    } 
}


/*celular2 act*/
@media screen and (max-width: 768px) {
    h1{
       text-align: center;       
    }
    /*.btn1{
        justify-content: center;
    }*/
    a:link{
        text-decoration:none;
    }
    .logos img{
        width:80%;
    }
    .logos2 img{
        width:30% !important;
    }
    .display-2 {
        color:#fff;
        font-size: 1rem;
    } 
    .intro-banner{
        background-position: center right;
        box-shadow: inset 0 0 0 1000px rgba(0, 0, 0, 0.8);
    } 
   .objp{
        text-align: center;
       }
    .introimagen img{
        filter:none;        
       }    
    .introimagen img:hover{
        filter: none;
        transform: scale(1);
  }
  .card-libro{
    margin: 0 auto;
    display: block;
    margin-bottom: 50px;
  }
  .img-container:hover img{
    transform: rotateY(90deg) translateZ(100px);
    transform: rotate(0deg);
    transform-origin: center;
  }  
  .card-libro:hover .img-container {
    transform: rotateY(0deg);   
    filter: grayscale(60%);
  }
}


/*portatil*/
@media screen and (max-width: 992px) {
    h1{
        text-align: center;
        margin:0 auto;
        display: block;
        font-size: 3rem !important;
     }
     .display-2 {
         font-size: 2rem;
     } 
     .intro-banner{
       display: block;  
    } 
}



/*tablet*/
@media screen and (max-width:1200px){
    .display-2 {
        font-size: 3.8rem;
        display:block;
    } 
   
}

 
/*tablet*/
 @media screen and (min-width:768px) and (max-width:1200px){
    .card-libro{
        margin-left: 5px !important;
    }
  }