@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@300;400;700&display=swap');
body{
    font-family: 'Raleway', sans-serif;
}
*{
    margin: 0;
    padding: 0;
}
:root{
    --background: linear-gradient(135deg,#667eea7e 0%,#764ba298 100%);
    --color-primary:#667eea;
    --color-secondary:#764ba2;
}
.hero{
    top: 0;
    width: 100%;
    margin: 0 auto ;
    overflow: hidden;
    padding: 80px 0;
    max-width: 2000px;
    height: 100vh;
    background-image:var(--background),url('../imagenes/bac.jpg') ;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    background-position:center ;
    padding: relative;
}
.title{
 padding: 10px;
    display: flex;
    height: calc(100vh-70px);
    align-items: center;
    color: #fff;
    font-size: 5rem;
}

.wave{
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    height: 100px;
}

header{
    width: 100%;
}
header nav{
    width: 100%;
    max-width: 2000px;
    margin: 0px ;
   
}
.menu_bar{
    display: none;
}
header nav ul{
    overflow: hidden;
    list-style: none;
    position: fixed;
    background: var(--background);
    width: 100%;
    max-width: 2000px;
    margin: 0px ;
    z-index: 2;
    
}
header nav ul li{
    
    float: right;
   
}
header nav ul li a{
    color: #fff;
    padding: 20px;
    display: block;
    text-decoration: none;
    text-align: center;
    font-size: 20px;
}
header nav ul li span{
    margin-right:20px ;
}
header nav ul li a:hover{
    background: #037E8C;
}
.subtitle{
    color: var(--color-primary);
    font-size: 2.5rem;
    margin-bottom: 35px;
}
.subtitl{
    color: var(--color-primary);
    font-size: 2rem;
    margin-bottom: 35px;
}
.presentation{
    padding-top:0 ;
    text-align: center;
}    
.presentation__picture{
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 10px;
    object-fit: cover;
}
.presentation__copy{
    width: 80%;
    margin: 0 auto;
    font-size: 1.3rem;
}
.contenido{
    width: 1000px;
    margin:auto;
}
.caja{
    display: table-cell;
    padding: 40px;
    text-align: justify;
    font-size: 2rem;
}
.caja p{
    font-size: 1.3rem;
}

.linea{
    
    border-top: 5px solid #0077c0;
    padding: 20px;
}
.video{
   margin: auto;
    width: 560px;
    height: 315px;
    margin-bottom: 50px;
}
.vid{
    width: 560px;
    height: 315px;
}
.footer{
    width: 100%;
    height: auto;
    background: var(--color-primary);
}
.footer h3{
    text-align: center;
    color: #fff;
    font-size: 1.7rem;
}
.redes{
    display: block;
    padding: 20px;
    background: var(--color-primary);
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    font-size: 30px;
    text-align: center;
}
.redes a {
    color: #fff;
    text-decoration: none;
}


@media screen and (max-width:1000px) {
    .hero_container{
        width: 100%;
    }
    .footer{
        width: 100%;
    }
    header nav {
        width: 80%;
        height: 100%;
        left: -100%;
        margin: 0;
        position: fixed;
        top: 69px;
        z-index: 3;
    }
    header nav ul li{
        display: block;
        float: none;
        border-bottom: 1px solid rgba(255,255,255, 0.3);
        
    }
    .menu_bar{
        display: block;
        width: 100%;
        background: #ccc;
        position: fixed;
        z-index: 3;
    }
    .menu_bar .bt-menu{
        display: block;
        padding: 20px;
        background: var(--color-primary);
        color: #fff;
        text-decoration: none;
        font-weight: bold;
        font-size: 25px;
        -webkit-box-sizing:border-box;
        -moz-box-sizing:border-box;
        box-sizing: border-box;
    }
    .menu_bar span{
        float:right ;
        font-size: 30px;
    }
    .title{
        display: flex;
        height: calc(100vh-70px);
        align-items: center;
        color: #fff;
        font-size: 3.5rem;
    }
    .hero{
        top: 0;
        width: 100%;
        margin: 0 auto ;
        overflow: hidden;
        padding: 80px 0;
        max-width: 1200px;
        height: 50vh;
        background-image:var(--background),url('../imagenes/bac.jpg') ;
        background-repeat: no-repeat;
        background-size: cover;
        background-attachment: fixed;
        background-position:center ;
        padding: relative;
    }
    .wave{
        display: none;
    }
    .contenido{
        width: 300px;
        margin:auto;
    }
    .caja{
        display: block;
        padding: 40px;
        text-align: justify;
    }
    .presentation__copy{
        width: 80%;
        margin: 0 auto;
        text-align: justify;
    } 
    .video{
        margin: auto;
         width: 300px;
         height: 215px;
         margin-bottom: 50px;
     }
     .vid{
         width: 300px;
         height: 215px;
         
     }
}
@media screen and (max-height:500px){
    .title{
        font-size:2rem;
    }
}