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

body {
    font-family: 'Saira';
}

.contenedor {
    padding: 15px 0;
    width: 90%;
    max-width: 1000px;
    margin: auto;
    overflow: hidden;
}

.titulo {
    color: black;
    font-size: 30px;
    text-align: center;
    margin-bottom: 60px;
}
.h2{
    font-size: 60px;
    font-weight: 600;
    color: black;   
}

.demo {
    color: #fff;
    font-size: 30px;
    text-align:start;
    margin-bottom: 60px;
}

/* Header */

header {
    width: 100%;
    height: 600px;
    background: #9494b8;
    /* fallback for old browsers */
    background: -webkit-linear-gradient(to right, hsla(340, 95%, 50%, 0.459), hsla(317, 45%, 52%, 0.664)), url(../img/Omar_Aguilar_BoxMain.JPG);
    /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to right, hsla(0, 0%, 100%, 0.459), hsla(0, 0%, 50%, 0.664)), url(../img/Omar_Aguilar_BoxMain.JPG);
    /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    background-size: cover;
    background-attachment: fixed;
    position: relative;
}

nav{
    text-align: right;
    padding: 30px 30px 0 5;
}

nav > a{
    color:#fff;
    font-weight: 300;
    text-decoration: none;
    margin-right: 10px;
}

nav > a:hover{
    text-decoration: underline;
}

header .textos-header{
    display: flex;
    height: 430px;
    width: 100%;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
}

.textos-header {
    font-size: 50px;
    color:#fff;
}

.textos-header h2{
    font-size: 30px;
    font-weight: 300;
    color:#fff;
}


.wave{
    position: absolute;
    bottom: 0;
    width: 100%;
}

/* About us */

main .sobre-nosotros{
    padding: 30px 0 60px 0;
}
.contenedor-sobre-nosotros{
    height: 600px;
    display: flex;
    justify-content: space-evenly;
}

.imagen-about-us{
    position: relative;
    width: 40%;
}

.sobre-nosotros .contenido-textos{
    width: 48%;
}

.contenido-textos h3{
    margin-bottom: 15px;
}

.contenido-textos h3 span{
    background: grey;
    color: #fff;
    border-radius: 50%;
    display: inline-block;
    text-align: center;
    width: 30px;
    height: 30px;
    padding: 2px;
    box-shadow: 0 0 6px 0 rgba(0, 0, 0, .5);
    margin-right: 5px;
}

.contenido-textos p{
    padding: 0px 0px 30px 15px;
    font-weight: 300;
    text-align: justify;
}

.sponsors {
    background-color: dimgrey;
    width: 100%;
    height: 400px;
}

.galeria-patrocinadores {
    width: 70%;
    height: 25%;
    display: block flex;
    margin:inherit; 
    margin-top: -50px;
    align-items: center;
    justify-content: center;
}
.sponsors img{
    width: 20%;
    display:inline;
    max-width: 600px;
    margin: inherit;
}

/*  Galleria Slider  */

img{
    max-width: 80%;
    margin-bottom: 0.5em;
    display: block;
    outline: 5px solid #fff;
    cursor: pointer;
    transition: 1s;
}

.slider {
    columns: 4 190px;
    column-gap: 0.5em;
}

.slider img:hover{
    transform: scale(1.2);
}

.ful-img{
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.9);
    position: fixed;
    top: 0;
    left: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 99;
}

.ful-img span{
    position: absolute;
    top: 5%;
    right: 5%;
    font-size: 30px;
    color: #fff;
    cursor: pointer;
}

.ful-img img{
    width: 90%;
    max-width: 800px;
}

/* footer */

footer{
    background-color: dimgrey;
    justify-content: center;
    text-align: center;
}

/*
footer .contenedor{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding-bottom: 5px;
}
*/
.copy{
    font-size: 60px;
    font-weight: 600;
    margin-bottom: 1px;
    color: black;
}

.sociales{
    width: 90%;

}

.sociales-header a{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    background-color: white;
}

.sociales img{
    display:inline;
    margin: inherit;
    justify-content: center;
}

@media screen and (max-width:900px){
    header{
        background-position: center;
    }

    .contenedor-sobre-nosotros{
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .sobre-nosotros .contenido-textos{
        width: 90%;
    }

    .imagen-about-us{
        width: 90%;
    }

    /* Galeria */

    .imagen-port{
        width: 44%;
    }


}

@media screen and (max-width:500px){
    nav{
        text-align: center;
        padding: 30px 0 0 0;
    }

    nav > a{
        margin-right: 5px;
    }

    .textos-header h1{
        font-size: 35px;
    }

    .textos-header h2{
        font-size: 20px;
    }

    /* ABOUT US */

    .imagen-about-us{
        margin-bottom: 60px;
        width: 99%;
    }

    .sobre-nosotros .contenido-textos{
        width: 95%;
    }

    /* Galeria */

    .imagen-port{
        width: 95%;
    }


    /* Footer */

    .contenedor-footer{
        flex-direction: column;
        border: none;
    }

    .content-foo{
        margin-bottom: 20px;
        text-align: center;
    }

    .content-foo h4{
        border: none;
    }

    .content-foo p{
        color: #ccc;
        border-bottom: 1px solid #f2f2f2;
        padding-bottom: 20px;
    }

    .titulo-final{
        font-size: 20px;
    }
}