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

html{
    position: relative;
    max-width: 100vw;
}

body {
  font-family: 'Open Sans', sans-serif;
  max-width: 100vw;
}

.header{
   position: absolute;
   top:0; left:0; right:0;
   z-index: 1000;
   background-color: linear-gradient(90deg, rgba( 0, 0, 0, 1), rgba( 255, 255, 255, 1));
   display: flex;
   padding-top: .2rem;
   padding-bottom: .2rem;
   box-shadow: var(--box-shadow);
   align-items: center;
   justify-content: space-around;
   backdrop-filter: blur(50px);
   -webkit-backdrop-filter: blur(50px);
   border-radius: 50px;
}

.header .logo{
   font-size: 2.5rem;
   color:var(--black);
}

.header .logo a img{
   height: 40px;
}

.icono-menu{
   background-image:url("../images/lupa_m.png") ;
}

.icono-cerrar{
   background-image:url("../images/x_icon.png") ;
}

.icono-menu,
.icono-cerrar{ 
  height: 2rem; /* You must set a specified height */
  background-position: left; /* Center the image */
  background-repeat: no-repeat; /* Do not repeat the image */
  background-size: cover; /* Resize the background image to cover the entire container */
}

#menu-btn{
      height: 2rem;
      width: 2rem;
      padding-right: 1rem;
      display: inline-block;
      transition: .2s linear;
   }

#menu-btn label{
      font-size: 1.5rem;
      color:var(--black);
      padding-left: 25px;
      display: inline-block;
      transition: .2s linear;
   }

   #menu-btn.icono-cerrar{
      height: 2rem;
      width: 2rem;
      display: inline-block;
      transform: rotate(180deg);
   }

   .header .navbar-menu{
      position: absolute;
      display: flex;
      top:99%; left:0; right:0;
      background-color: var(--white);
      border-top: var(--border);
      padding:2rem;
      transition: .2s linear;
      clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
   }

   .header .navbar-menu.active{
      clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
   }

#menu-btn{
   font-size: 2.5rem;
   cursor: pointer;
   color:var(--black);  
}
.enlaces {
  background: rgba(200,200,200,0.4); 
  display: inline-flex;
  justify-content: space-between;
  margin: 0;
  margin-bottom: .4em
  padding: 0;
  list-style: none;
  border-radius: 15px;
}

.enlaces li a{ 
  color: rgba(255,255,255,0.7); 
}

.dropdown-menu { 
  background: rgba(25,25,20,0.5);
  border-bottom-left-radius: 11px;
  border-bottom-left-radius: 11px;
  padding: .1em; 
}


a.dropdown-item {
 background: rgba(200,200,200,0.4); 
 margin: 2px;
 border-bottom-left-radius: 10px;
 border-top-left-radius: 10px;
}

a.dropdown-item:active,  a.dropdown-item:focus {
  background: #8fc04e;
}

.sociales{
   position: absolute;
   bottom:10px; left:100; 
   z-index: 1000;
   background-color: linear-gradient(90deg, rgba( 0, 0, 0, 1), rgba( 255, 255, 255, .5));
   display: flex;
   padding-top: .2rem;
   padding-bottom: .2rem;
   box-shadow: var(--box-shadow);
   align-items: center;
   justify-content: space-around;
   backdrop-filter: blur(50px);
   -webkit-backdrop-filter: blur(50px);
}
/* ===================================
2. efectos menu prinsipal
==================================== */

.headroom {
  transition:  transform: .3s ease
}

.headroom--pinned {
  transition:  translateY(0%); 
}

.headroom--pinned {
  transition:  translateY(-300%); 
}

/* ===================================
2. layout
==================================== */

img {
  max-width: 100%;
  text-align: justify;  
}

section {
  margin:1px:; 
    
}

.container{
	padding:0 10px 0 10px;
	position:relative;
  text-align: justify; 
	border-bottom: 0px;
}
.container-index{
  position:relative;
  text-align: justify; 
  margin-left: 5px;
  margin-right: 5px;
  padding-right: 5px;
  padding-left: 5px;

}

.row {
	margin-bottom:10px;
	border: 0px;
}

.row-imagen {
  margin-bottom:10px;
  border: 0px;
  max-height: 200px; 
}

.col-sm-12 {
  margin:1px;
	margin-bottom:10px;
	border: 0px;
}

.card-group {
  display: grid;
   grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
   gap:2rem;
}

.card{
  margin:1px;
}

.card-index {
	margin-bottom:10px;
  background: rgba(0,0,0,0.8);
  position: relative;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
      -ms-flex-direction: column;
          flex-direction: column;
  transparency: #fff;
  border: 2px solid rgba(0, 0, 0, 0.125);
  border-radius: 5rem;
  margin:20;
  padding: 10px;
}

.card-block {
	margin-bottom:10px;
    margin:1px;

	border: 0px;
}

.row .row{
	margin-bottom:10px;
}

.row.nomargin {
	margin-bottom:0;
}

.img-rigth {
    position: right;
}

/* ===================================
3. Responsive media
==================================== */

.video-container,.map-container,.embed-container 		{ position:relative; margin:0 0 15px 0;	padding-bottom:51%; padding-top:30px; height:0; overflow:hidden; border:none; }
.embed-container iframe,
.embed-container object,
.embed-container embed,
.video-container iframe,
.map-container iframe,
.map-container object,
.map-container embed,
.video-container object,
.video-container embed 					{ position:absolute; top:0; left:0; width:100%; height:100%; }
iframe {
	border:none;
}

.card:hover img {-webkit-transform:scale(1.3);transform:scale(1.3);}
.card {overflow:hidden;}

.fotos:hover img {-webkit-transform:scale(1.3);transform:scale(1.3);}
.fotos {overflow:hidden;
margin-right: 5px;
  margin-bottom: 10px; }

.imagen-izquierda {
	margin-right: 20px;
  margin-bottom: 20px;  
}

.imagen-derecha {
  margin-left: 20px;
  margin-bottom: 20px;  
}



/* cover */
#cover {
    background: #222 url('../web/Museo Nacional de Arqueologia jardin monumentos.png') center center no-repeat;
    background-size: cover;
    color: white;
    height: 100%;
    text-align: center;
    display: flex;
    align-items: center;
}

#cover-texto {
    width: 100%;
    
}

#cover-texto .form-inline{
    width: 100%;
}

.contenido-seccion-admin {
    padding: 0rem 0;
    color: black;
    margin-left: 10px;
     margin-right: 10px;
}

.contenido-seccion {
    padding: 0rem 0;
    
    margin-left: 10px;
     margin-right: 10px;
}


#acerca-de {
   background: url('../web/IMG_1293.jpg') center center no-repeat;
   background-size: cover;
}

.menu-noticias-index {
  background: rgba(0,0,0,0.7);
  color: white;
  padding: .5rem; 
  border: 1px solid white;
  border-radius: 0.3rem;
  margin:0;
  text-align: center;
}

.wrap{
  width: 80%;
  margin: 6% auto;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  flex-flow: row wrap;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.tarjeta-wrap{
  margin: 10px;
  -webkit-perspective: 800;
  perspective: 800;
  border-radius: 15px;
}

.tarjeta{
  width: 13em;
  height: 13em;
  position: relative;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transition: .7s ease;
  transition: .7s ease;
  -webkit-box-shadow: 0px 10px 15px -5px rgba(0,0,0,0.65);
  box-shadow: 0px 10px 15px -5px rgba(0,0,0,0.65);
  border-radius: 15px
  overflow: hidden;
}

.adelante, .atras{
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.adelante{
  width: 100%;
  padding: 1em;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;

  text-align: center;
  color: #fff;
  font-family: "open sans";
}

.atras{
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);

  padding: 1em;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  flex-flow: row wrap;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: space-between;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}

.tarjeta-wrap:hover .tarjeta{
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}

.targeta-btn {
  background: rgba(0, 0, 26, .5);
  backdrop-filter: blur(20px) ;
  -webkit-box-shadow: 0px 10px 15px -5px rgba(0,0,0,0.65);
  box-shadow: 0px 10px 15px -5px rgba(0,0,0,0.65);
  border: 1px solid;
  border-color: rgba(200, 250, 10, .6);
  padding: .5em;
  margin: .5em;

  text-align: center;
  color: #fff;
  font-family: "open sans";
}

.targeta-btn {
 
  text-align: center;
  color: #226677;
  font-family: "open sans";
}

.hero {
    position: relative; 
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero::before {    
      content: "";
      background-image: url('https://placekitten.com/1200/800');
      background-size: cover;
      position: absolute;
      top: 0px;
      right: 0px;
      bottom: 0px;
      left: 0px;
      opacity: 0.75;
}

h1 {
  position: relative;
  color: #ffffff;  
  font-size: 14rem;
  line-height: 0.9;
  text-align: center;
}

.card1{
  background-image: url(../web/indexintroduccion.png);
  background-size: cover;
}

.card2{
  background-image: url(../web/indexpreclasico.png);
  background-size: cover;
}

.card3{
  background-image: url(../web/indexclasico.png);
  background-size: cover;
}

.card4{
  background-image: url(../web/indexmonumentos.png);
  background-size: cover;
  background-opacity: 50%;
  backdrop-filter: blur(20px); 
}

.card5{
  background-image: url(../web/obrasmagis.png);
  background-size: cover;
}

.card6{
  background-image: url(../web/indexposclasico.png);
  background-size: cover;
}

.card7{
  background-image: url(../web/indexetnologia.png);
  background-size: cover;
}

.card8{
  background-image: url(../web/obrasmagis.png);
  background-size: cover;
}

.card1atras{
  background-image: url(../web/indexintroduccion.png);
  background-size: cover;
}

.card2atras{
  background-image: url(../web/salaPreclasica.jpg);
  background-size: cover;
}

.card3atras{
  background-image: url(../web/salaClasica.jpg);
  background-size: cover;
}

.card4atras{
  background-image: url(../web/salaMonumentos.jpg);
  background-size: cover;
}

.card5atras{
  background-image: url(../web/salaObrasMaestras.jpg);
  background-size: cover;
}

.card6atras{
  background-image: url(../web/salaPosClasica.jpg);
  background-size: cover;
}

.card7atras{
  background-image: url(../web/salaEtnologia.jpg);
  background-size: cover;
}

.card8atras{
  background-image: url(../web/mapaFondo.png);
  background-size: cover;
}

.fondo-mapa{
  width: 100%;
  background-image: url(../web/mapaFondo.png);
  background-size: cover;
}

.texto-acerca-de-index {
    background: rgba(0,0,0,0.3);
    color: white;
    padding: 0.875rem; 
    border: 2px solid rgba(0, 0, 0, 0.5);
    border-radius: .5rem;
    margin:10;
    border-color: white;
}
    
.texto-acerca-de-baner-index {
    background: rgba(0,0,0,0.0);
    color: white;
    padding: 3.875rem;  
    border-radius: 2rem;
    margin:30;
}

.texto-acerca-de-expos {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 0;
    position: relative;
    border-radius: 1em;
}

.titulo-flotante {
    position: absolute;
}

#acerca-de-salapreclasica {
    background: url('../web/salaPreclasica.jpg') center center no-repeat;
    background-size: cover;
}

#preclasico {
    background: url('../web/salaPreclasica.jpg') center center no-repeat;
    background-size: cover;
}

.texto-acerca-de-preclasico {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-clasico {
    background: url('../web/salaClasica.jpg') center center no-repeat;
    background-size: cover;
}

#clasico {
    background: url('../web/salaClasica.jpg') center center no-repeat;
    background-size: cover;
}

.texto-acerca-de-clasico {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-posclasico {
    background: url('../web/salaPosClasica.jpg') center center no-repeat;
    background-size: cover;
}

#posclasico {
    background: url('../web/salaPosClasica.jpg') center center no-repeat;
    background-size: cover;
}

.texto-acerca-de-posclasico {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-monumentos {
    background: url('../web/salaMonumentos.jpg') center center no-repeat;
    background-size: cover;
}
#monumentos {
    background: url('../web/salaMonumentos.jpg') center center no-repeat;
    background-size: cover;
}

.texto-acerca-de-monumentos {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-etnografia {
    background: url('../web/salaEtnologia.jpg') center center no-repeat;
    background-size: cover;
}

#etnologia {
    background: url('../web/salaEtnologia.jpg') center center no-repeat;
    background-size: cover;
}

.texto-acerca-de-etnografia {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-obras-maestras {
    background: url('../web/salaObrasMaestras.jpg') center center no-repeat;
    background-size: cover;
}

#obras {
    background: url('../web/salaObrasMaestras.jpg') center center no-repeat;
    background-size: cover;
}

.texto-acerca-de-obras-maestras {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}



#acerca-de-historia {
   background: url('../web/historia3.png') center center no-repeat;
   background-size: cover;
}

.texto-acerca-de-historia {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-munae {
   background: url('../web/IMG_1293.jpg') center center no-repeat;
   background-size: cover;
}

.texto-acerca-de-munae {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-programas {
   background: url('../web/Programa_de_Gestion.png') center center no-repeat;
   background-size: cover;
}

.texto-acerca-de-programas {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-somos {
   background: url('../web/quienesSomos.png') center center no-repeat;
   background-size: cover;
}

.texto-acerca-de-somos {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-educacion {
   background: url('../web/educacion_fondo1.png') center center no-repeat;
   background-size: cover;
}

.texto-acerca-de-educacion {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-colecciones {
   background: url('../web/Coleccion_Nacional.png') center center no-repeat;
   background-size: cover;
}

.texto-acerca-de-colecciones {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-form {
    background: url('../web/05.jpg') center center no-repeat;
    background-size: cover;
}
.texto-acerca-de-form {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-intro {
    background: url('../web/salaIntroduccion.png') center center no-repeat;
    background-size: cover;
}

#Introuctoria {
    background: url('../web/salaIntroduccion.png') center center no-repeat;
    background-size: cover;
}

.texto-acerca-de-intro {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#acerca-de-prueba {
    background: url('../web/04.jpg') center center no-repeat;
    background-size: cover;
}

#acerca-de-prueba2 {
    background-color: #edaf43;
    
}

.texto-acerca-de-prueba {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.475rem;
}

#footer-main {
    background: #222;
    color: white;
    font-size: 0.8rem;
    padding: 2.5rem 0;
}

.main {
   marin-top: 10px;
   marin-bottom: 10px;
   
}

.index-responsive {
    overflow:hidden;
    padding-bottom:56.25%;
    position:relative;
    height:0;
}

.index-responsive iframe {
    left:0;
    top:0;
    height:100%;
    width:100%;
    position:absolute;
}

@media screen and (max-width: 700px){

  header {
    flex-direction: column;
  }

.logo {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  margin: .2em;
}

.logo-img {
  max-height: 12em;
  opacity: .4;
  backdrop-filter: 20px;
}

.btn-menu {
  display: inline-block;
}

.cont-menu {
  display: block;
}

.enlaces {
  margin: 1em;
  display: block;
}

}