/* Mi Css - DCA */ 

/* ------------ FUENTE / FONT ------------ */
@font-face{
    font-family:"ubuntu";
    src: url(../font/Ubuntu-R.ttf)
}
html{
    scroll-behavior: smooth;
    max-width: 100%;
  }
body{
    font-family: ubuntu,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
    font-size: 1.1em
}
h1, h2, h3, h4, h5, h6{
    font-weight: bold !important
}
p{
    text-align: justify;
    margin-bottom: 0px
}
.bla{
    background: white;
    box-shadow: 0px 0px 2px 1px #181818
}
#ventanaModal{
    background-color: rgba(21,21,21,0.75)
}
.fondonegro{
     background-color: #181818;
     color: white
}
.fondonegro_header{
    background: rgba(122,122,122,1);
    background: -moz-linear-gradient(-45deg, rgba(122,122,122,1) 0%, rgba(23,23,23,1) 58%, rgba(23,23,23,1) 100%);
    background: -webkit-gradient(left top, right bottom, color-stop(0%, rgba(122,122,122,1)), color-stop(58%, rgba(23,23,23,1)), color-stop(100%, rgba(23,23,23,1)));
    background: -webkit-linear-gradient(-45deg, rgba(122,122,122,1) 0%, rgba(23,23,23,1) 58%, rgba(23,23,23,1) 100%);
    background: -o-linear-gradient(-45deg, rgba(122,122,122,1) 0%, rgba(23,23,23,1) 58%, rgba(23,23,23,1) 100%);
    background: -ms-linear-gradient(-45deg, rgba(122,122,122,1) 0%, rgba(23,23,23,1) 58%, rgba(23,23,23,1) 100%);
    background: linear-gradient(135deg, rgba(122,122,122,1) 0%, rgba(23,23,23,1) 58%, rgba(23,23,23,1) 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#7a7a7a', endColorstr='#171717', GradientType=1 )
}
.titulo_container{
    height: 550px;
    position: relative
}
.titulo1{
    top: 80px
}
.titulo2{
    top: 170px
}
.t-container-bl{
    position: absolute;
    bottom: 80px;
    height: 150px;
    width: 100%
}
.t-container-b{
    width: 650px
}
.t-container-b > h6{
    width: 650px;
    margin-top: 9px;
    text-shadow: 0 0 8px #181818, 0 0 1px #fff
}

.titulo_comun{
    left: 0px;
    right: 0px;
    text-shadow: 0px 0px 8px #181818;
    position: absolute
}
.titulo_boton_conf{
    width: 60px;
    height: 60px;
    max-width: 60px;
    border-radius: 15px;
    background: rgb(240, 240, 240);
    padding: 5px;
    box-shadow: 0px 0px 30px 15px #181818;
    transition-property: background-color, color, box-shadow;
    transition-duration: 1s
}
.titulo_boton_conf:focus{
    outline: none
}

@media (max-width : 768px) {
    .t-container-bl{
        width: 100%
    }
    .t-container-b{
        width: 450px
    }
} 
@media (max-width : 540px) {
    .t-container-bl{
        width: 100% 
    }
    .t-container-b{
        width: 100%;
        min-width:200px
    }
    .titulo_boton_conf{
        padding: 0px
    }
} 
.titulo_boton_conf:hover{
    background-color: white;
    color: black;
    box-shadow: 0px 0px 10px 1px #ffffff;
    border: 10px;
    border-color: black
}
.portfolio{
    width: 100%;
    height: 750px
}
#b_t_services, #b_t_portfolio, #b_t_contact{
    animation-delay: 1.25s
}
.fa_sombra{
    box-shadow: 0px 0px 8px 1px #181818;
    padding: 3px;
    height: 65px;
    width: 65px;
    border-radius: 10px;
    text-align: center;
    font-size: 3.4em;
    transition-property: box-shadow;
    transition-duration: 1s
}
.fa_sombra:hover{
    box-shadow: 0px 0px 30px 1px #181818
}
.col-responsive1{
    display: block
}
.col-responsive{
    display: none
}
.duracion1{
    animation-duration: 3s
}


@media (max-width : 768px) {
    .fa_sombra{
        padding: 1px;
        height: 55px;
        width: 55px;
        font-size: 2.9em
    }
    .col-responsive1{
        display: none
    }
    .col-responsive{
        display:block
    }
    .duracion1{
        animation-duration: 500ms
    }
} 
@media (max-width : 540px) {
    .fa_sombra{
        padding: 2px;
        height: 40px;
        width: 40px;
        font-size: 2em;
        margin-top: -20px
    }
} 


/* ------------ MENU LATERAL ------------ */
.menu_lateral{
    position: fixed;
    top:60px;
    left: 8px;
    width: 70px;
    height: 400px;
    z-index: 99;
    text-align: center
}
.nombre_boton{
    position: absolute;
    margin-left: 15px;
    margin-top: 14px;
    vertical-align: middle;
    text-shadow: 0px 0px 8px #ffffff, 0px 0px 5px #ffffff, 0px 0px 8px #ffffff, 0px 0px 5px #ffffff;
    width: 60px
}
.boton_menu{
    width: 48px;
    height: 48px;
    max-width: 48px;
    border-radius: 6px;
    background: rgb(240, 240, 240);
    margin-bottom: 20px;
    box-shadow: 0px 0px 10px 2px #181818, 0 0 10px 2px rgb(255, 255, 255);
    border-color: transparent;
    transition-property: border-color, border-width, background-color, color, box-shadow;
    transition-duration: 1s
}
.boton_menu:hover{
    background-color: white;
    color: black;
    box-shadow: 0 0 25px #fff, 0 0 25px #181818;
    border-width:1px;
    border-color:#363636
}
.boton_menu:focus{
    outline: none
}
.menu_letras{
    font-size: 31px;
    padding-top: 4px
}
.menu_titulo{
    text-shadow: 1px 1px 10px #000000, -1px -1px 10px #000000, 1px 1px 10px #000000;
    color: white;
    font-size: 25px;
    margin-top:5px;
    margin-bottom: 5px
}
.menu_overlay {
    color: black;
    position: absolute;
    margin-left: 35px;
    margin-top: 13px;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    white-space: nowrap
}
.overlay {
    position: absolute;
    margin-left: 0px;
    margin-top: 13px;
    overflow: hidden;
    width: 0;
    height: 30px;
    transition: .7s ease
}
#eluno:hover .overlay, #eldos:hover .overlay, #eltres:hover .overlay, #elcuatro:hover .overlay{
    width: 80px
}
@media(max-width:768px){
    .menu_lateral{
        top:10px;
    }
}

/* -----------  OVERLAY DE TODO EL MENU ------------*/
.container_menu_overlay_nav{
    position: relative
}
.menu_overlay_nav {
    position: absolute;
    overflow: hidden;
    width: 150px;
    height:400px;
    transition: .8s ease;
    margin-left: -10px;
    left: 0px;
    margin-top: -15px
}
.boton_check{
    position: relative;
    text-align: center;
    height: 35px;
    width: 35px;
    border-radius: 50px;
    left: 0px;
    margin-top:-10px;
    padding-top: -5px;
    cursor: pointer;
    color: white;
    text-shadow: 1px 1px 16px #000000, -1px -1px 16px #000000, 1px 1px 16px #000000, -1px -1px 16px #000000;
    border: none;
    background: transparent;
    transition: color,text-shadow 800ms
}
#boton_nav1{
    position: absolute;
    top:2px;
    left: 7px;
    font-size:30px  
}
.boton_check:hover {
    color: #181818;
    text-shadow: 1px 1px 16px #ffffff, -1px -1px 16px #ffffff, 1px 1px 16px #ffffff, -1px -1px 16px #000000
}
#eluno{
    top:20px;
    left: 20px
}
#eldos{
    top:80px;
    left: 20px
}
#eltres{
    top:140px;
    left: 20px
}
#elcuatro{
    top:200px;
    left: 20px
}
.ico_menu{
    position: fixed;
    top: 15px;
    right: 20px;
    z-index: 99;
    text-shadow: 0px 0px 16px #ffffff, 0px 0px 16px #ffffff, 0px 0px 16px #ffffff, 0px 0px 16px #000000;
    border-radius: 5px;
    border: 1px solid rgba(24, 24, 24, 0.2);
    padding-left: 10px;
    padding-right: 10px;
    padding-top:5px;
    padding-bottom:5px;
    background-color: rgba(240, 240, 240, 0.9);
    cursor: pointer;
    color: #181818;
}
.menu_opcion{
    color: white;
    width: auto;
    background-color: rgba(21,21,21,1);
    padding-top: 30px;
    padding-bottom: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.4);
    font-size: 1.5em;
    transition: 1000ms;
}
.menu_opcion:hover{
color: #181818;
background-color: rgba(240, 240, 240, 0.664);
transition: 1000ms;
}

.menu_opcion_arriba{
    color: white;
    width: auto;
    background-color: rgba(21,21,21,1);
    padding-top: 30px;
    padding-bottom: 10px;
    font-size: 1.5em;
}
.menu_opcion_arriba:hover{
    color: #181818;
    background-color: rgba(240, 240, 240, 0.664);
    transition: 1000ms;
    }
.menu_opcion_abajo{
    color: white;
    width: auto;
    background-color: rgba(21,21,21,0.98);
    padding-top: 30px;
    padding-bottom: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.4);
    font-size: 1.5em;
   }
.menu_p_opcion{
    border-top: none;
}
.bloque{
    display: inline-block;
    width: 25%;
}

@media (max-width:540px){
    #barra_nav{
        display: none;
    }
}
@media (min-width:540px){
    #nav_movil{
        display:none;
    }
}
/* ------------ FIN MENU LATERAL ------------ */


/* ------------ BOTON PERSONALIZADO ------------ */
.boton_personalizado{
    text-decoration: none;
    padding: 10px;
    font-weight: 600;
    font-size: 17px;
    color: #ffffff;
    background-color: #181818;
    border-radius: 6px;
    border: 1px solid #181818;
    transition: 400ms
}
.boton_personalizado:hover{
    color: #000;
    background-color: #ffffff;
    text-decoration: none;
    -webkit-box-shadow: 13px 13px 35px 0px rgba(21,21,21,0.64);
    -moz-box-shadow: 13px 13px 35px 0px rgba(21,21,21,0.64);
    box-shadow: 7px 7px 20px 0px rgba(21,21,21,0.64)
}
/* ------------ FIN BOTON PERSONALIZADO ------------ */

/* ------------ CAROUSEL ------------ */
.contentenido-all{
    width: 250px;
    height: 50px;
    perspective: 600px;
    position: relative;
    margin: auto;
    margin-top: 30px;
    padding-top: 40px
}
.content-carrusel{
    width: 100%;
    position: absolute;
    animation: rotar 30s infinite linear;
    transform-style: preserve-3d
}
.content-carrusel:hover{
    animation-play-state: paused
}
.content-carrusel figure {
    position: absolute;
    overflow: hidden;
    border-radius: 10px;
    transition: 600ms;
}
.content-carrusel figcaption{
    visibility: hidden
}
.content-carrusel figure:hover {
    box-shadow: 0px 0px 20px 0px rgb(255, 255, 255);
    border-radius: 30px
}
.content-carrusel img{
    width: 100%;
    transition: all 300ms;
    border-radius: 10px
}
.content-carrusel img:hover{
    transform: scale(1.36);
    transition: all 300ms;
    cursor: pointer;
    border-radius: 10px
}
/* CAMBIAR EL TRANSLATEZ PARA AJUSTAR, MAS CERCA LAS FOTOS UNAS DE OTRAS
Y AJUSTAR EL ROTATEY DEPENDIENDO LAS FIGURE QUE HAYA, SI HAY 7 OU 8 HAY QUE
DIVIDIR 360 GRADOS ENTRE 8 Y PONER EN ESOS INTERVALOS */
.content-carrusel figure:nth-child(1){
    transform: rotateY(0deg) translateZ(200px)
}
.content-carrusel figure:nth-child(2){
    transform: rotateY(90deg) translateZ(200px)
}
.content-carrusel figure:nth-child(3){
    transform: rotateY(180deg) translateZ(200px)
}
.content-carrusel figure:nth-child(4){
    transform: rotateY(270deg) translateZ(200px)
}
/* .content-carrusel figure:nth-child(5){
    transform: rotateY(180deg) translateZ(200px)
}
.content-carrusel figure:nth-child(6){
    transform: rotateY(225deg) translateZ(300px)
}
.content-carrusel figure:nth-child(7){
    transform: rotateY(270deg) translateZ(200px)
}
.content-carrusel figure:nth-child(8){
    transform: rotateY(315deg) translateZ(300px)
} */
.columna_medio_portfolio, .box-general{
    display: block
}
        /* ------------ RECUADRO PORTFOLIO ------------ */
        .box-infor:after, .box-infor:before{
            content:"";
            position:absolute;
            top:0;left:0;bottom:0;right:0;
            opacity:0;
            transition:all .7s ease 0s
        }
        .box-infor:before{
            border-bottom:1px solid rgba(255,255,255);
            border-top:1px solid rgba(255,255,255);
            transform:scale(0,1);
            transform-origin:0 0 0;
            border-radius: 10px 10px 10px 10px;
            -moz-border-radius: 10px 10px 10px 10px;
            -webkit-border-radius: 10px 10px 10px 10px
        }
        .box-infor:after{
            border-left:1px solid rgba(255,255,255);
            border-right:1px solid rgb(255, 255, 255);
            transform:scale(1,0);
            transform-origin:100% 0 0;
            border-radius: 10px 10px 10px 10px;
            -moz-border-radius: 10px 10px 10px 10px;
            -webkit-border-radius: 10px 10px 10px 10px
        }
        .box-general:hover .box-infor:after,.box-general:hover .box-infor:before{
            opacity:1;
            transform:scale(1);
            transition-delay:.15s
        }
        .box-infor {
            max-width: 500px
        }
        /* ------------ FIN RECUADRO PORTFOLIO ------------ */
@keyframes rotar{
    from{
        transform: rotateY(0deg);
    }to{
        transform: rotateY(360deg);
    }
}
@media (max-width : 1360px) {
    .columna_medio_portfolio{
        display: none
    }
    .content-carrusel figure {
        width: 300px
    }
    .content-carrusel figure:nth-child(1){
        transform: rotateY(0deg) translateZ(170px)
    }
    .content-carrusel figure:nth-child(2){
        transform: rotateY(90deg) translateZ(170px)
    }
    .content-carrusel figure:nth-child(3){
        transform: rotateY(180deg) translateZ(170px)
    }
    .content-carrusel figure:nth-child(4){
        transform: rotateY(270deg) translateZ(170px)
    }
}
@media (max-width : 1124px) {
    .columna_medio_portfolio{
        display: none
    }
    .box-general{
         width: 100%
    }
    .box-infor{
        width: 300px
    }
    .content-carrusel figure { 
        width: 250px
    }
    .content-carrusel figure:nth-child(1){
        transform: rotateY(0deg) translateZ(130px)
    }
    .content-carrusel figure:nth-child(2){
        transform: rotateY(90deg) translateZ(130px)
    }
    .content-carrusel figure:nth-child(3){
        transform: rotateY(180deg) translateZ(130px)
    }
    .content-carrusel figure:nth-child(4){
        transform: rotateY(270deg) translateZ(130px)
    }
}
@media (max-width : 768px) {
    .portfolio{
        width: 100%;
        height: 1100px
    }
    .content-carrusel figure {
        position: relative;
        overflow: visible;
        border-radius: 10px;
        display: inline-block;
        width: 200px;
        margin: auto;
        margin-top:20px;
        margin-bottom: 20px
    }
    .content-carrusel img{
        border-radius: 10px
    }
    .content-carrusel figcaption{
        visibility: visible;
        margin-bottom: 20px;
        margin-top: 20px
    }
    .content-carrusel figure:hover {
        box-shadow: none
    }
    .content-carrusel{
        width: 100%;
        height: 100%;
        position: relative;
        animation: none;
        transform-style: flat;
        text-align: center;
        padding: 0px;
        margin:0px
    }
    .content-carrusel img{
        width: 85%
    }
    .contentenido-all{
        width: 100%;
        height: 100%;
        perspective: none;
        position: relative;
        margin: auto;
        margin-top: 0px;
        padding-top: 0px
    }
     .columna_medio_portfolio, .box-general{ 
        display: none
    }   
    .content-carrusel figure:nth-child(1){
        transform: rotateY(0deg) translateZ(0px)
    }
    .content-carrusel figure:nth-child(2){
        transform: rotateY(0deg) translateZ(0px)
    }
    .content-carrusel figure:nth-child(3){
        transform: rotateY(0deg) translateZ(0px)
    }
    .content-carrusel figure:nth-child(4){
        transform: rotateY(0deg) translateZ(0px)
    }
    .portfolio_container{
        margin-left: 5px;
        margin-right: 5px
    }
} 
@media (max-width : 540px) {
    .portfolio{
        width: 100%;
        height: 1500px
    }
    .content-carrusel img{
        width: 110%
    }
} 
/* ------------ FIN CAROUSEL ------------ */

/* ------------ LETRAS DEL BANNER ------------ */
.letras{
    background: linear-gradient(90deg, #000, #fff, #000);
    background-repeat: no-repeat;
    background-size: 80%;
    animation: animate 3s linear infinite;
    -webkit-background-clip: text;
    -webkit-text-fill-color: rgba(255,255,255,.2);
    letter-spacing: 0.2em
}
@keyframes animate{
    0%{
        background-position: -500%;
    }
    100%{
        background-position: 500%;
    }
}
/* ------------ FIN LETRAS DEL BANNER ------------ */

/* ------------ CUADROS DE SERVICIOS ------------ */
.cuadros{
    margin:15px;
    background-color: #181818;
    color: white;
    padding: 30px 45px 30px 45px;
    text-align: justify;
    -webkit-box-shadow: 10px 10px 15px 0px rgba(21,21,21,0.64);
    -moz-box-shadow: 10px 10px 15px 0px rgba(21,21,21,0.64);
    box-shadow: 10px 10px 15px 0px rgba(21,21,21,0.64);
    border-radius: 10px 10px 10px 10px;
    -moz-border-radius: 10px 10px 10px 10px;
    -webkit-border-radius: 10px 10px 10px 10px
}
.cuadros1{
    margin:15px;
    background-color: #fff;
    color: #181818;
    padding: 30px 45px 30px 45px;
    margin: 50px auto;
    text-align: justify;
    -webkit-box-shadow: 13px 13px 35px 0px rgba(21,21,21,0.64);
    -moz-box-shadow: 13px 13px 35px 0px rgba(21,21,21,0.64);
    box-shadow: 13px 13px 35px 0px rgba(21,21,21,0.64);
    border-radius: 10px 10px 10px 10px;
    -moz-border-radius: 10px 10px 10px 10px;
    -webkit-border-radius: 10px 10px 10px 10px
}
.img-border{
    border-radius: 10px 10px 10px 10px;
    -webkit-box-shadow: 10px 10px 15px 0px rgba(21,21,21,0.80);
    -moz-box-shadow: 10px 10px 15px 0px rgba(21,21,21,0.80);
    box-shadow: 10px 10px 15px 0px rgba(21,21,21,0.80)
}
/* ------------ FIN CUADROS DE SERVICIOS ------------ */

/* ------------ PARA LA OLAS BANNER Y PORTFOLIO ------------ */
.banner_container {
    height: 400px;
    position: relative;
    background: url(../img/web2.jpg);
    background-size: cover;
    background-attachment: fixed
}
@media(max-width:540px){
    .banner_container {
        background-size: 540px;
    }
}
.wave_ban{
    height:100px;
    overflow:hidden;
    width: 100%
}
.wave_down{
    position: absolute;
    bottom: 0
}
.wave_up{
    position: absolute;
    top:0
}
.wave_svg{
    height: 100%;
    width: 100%
}
.wave_path{
    stroke: none;
    fill: #fff
}

.wave_portfolio{
    height: 150px;
    overflow: hidden
}
.wave_path_abajo{
    stroke: none;
    fill: #181818
}
.wave_path_arriba{
    stroke: none;
    fill: #fff
}
/* ------------ FIN OLAS BANNER Y PORTFOLIO ------------ */

/* ------------ PARA LA OLA DEL TITULO ------------ */
.waves {
    position: relative;
    width: 100%;
    /*Fix for safari gap*/
    min-height: 80px;
    max-height: 100px
}
/* Animation */
.parallax>use {
    animation: move-forever 25s cubic-bezier(.55, .5, .45, .5) infinite
}
.parallax>use:nth-child(1) {
    animation-delay: -2s;
    animation-duration: 7s
}
.parallax>use:nth-child(2) {
    animation-delay: -3s;
    animation-duration: 10s
}
.parallax>use:nth-child(3) {
    animation-delay: -4s;
    animation-duration: 13s
}
.parallax>use:nth-child(4) {
    animation-delay: -5s;
    animation-duration: 20s
}
@keyframes move-forever {
    0% {
      transform: translate3d(90px, 0, 0);
    }
    100% {
      transform: translate3d(-85px, 0, 0);
    }
}
  /*Shrinking for mobile*/
@media (max-width: 768px) {
    .waves {
        height: 40px;
        min-height: 40px
    }
}
/* ------------ BOTON DE CONTACTAR ------------ */
:root {
    --bg: #ffffff;
    --color: #181818
}
.wrapper{
    padding: 1.5rem 0
}
.button_c{
    display: inline-block;
    text-align: center;
    font-weight: bold;
    padding: 1.18em 1.32em 1.03em;
    line-height: 1;
    border-radius: 1em;
    position: relative;
    min-width: 8.23em;
    text-decoration: none;
    border: 0px;
    filter: url('#goo')
}
.button_contacto{
    font-size: 30px;
    letter-spacing: 0.1em;
    transition: 1000ms;
    background: var(--color);
    color: var(--bg)
}
.bt-c-img{
    width: 60px;
}
@media (max-width: 768px) {
    .button_c {
        min-width: 5.23em
    }
    .button_contacto{
        font-size:25px
    }
}
@media (max-width: 600px) {
    .button_contacto{
        font-size:20px
    }
}
@media (max-width: 540px) {
    .button_contacto{
        font-size:18px
    }
    .bt-c-img{
        width: 40px
    }
}
.button_portfolio{
    visibility: hidden;
    z-index: 1;
    background-color: var(--bg);
    color: var(--color);
    font-size: 1.2em
}
.button_contacto:hover{
    font-size: 35px
}
.button_c:focus { 
    outline: none
} 
.button_c:before,
.button_c:after {
    width: 4.4em;
    height: 2.95em;
    position: absolute;
    content: "";
    display: inline-block;
    border-radius: 50%;
    transition: transform 1s ease;
    transform: scale(0);
    z-index: -1
}
.button_contacto:before,
.button_contacto:after {
    background: var(--color)
}
.button_portfolio:before,
.button_portfolio:after {
    background: white
}
.button_c:before {
    top: -25%;
    left: 20%
}
.button_c:after {
    bottom: -25%;
    right: 20%
}
.button_c:hover:before,
.button_c:hover:after {
    transform: none
}
#contact {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg);
    height: 250px
}
/* ------------ FIN BOTON DE CONTACTAR ------------ */

/* ------------ CAMBIAR EL COLOR AL FOCUS DE FORMULARIO ------------ */
.form-control:focus {
    border-color: #0078ff;
    box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.075) inset, 0px 0px 8px rgba(26, 41, 243, 0.5)
}
/* ------------ FIN CAMBIAR EL COLOR AL FOCUS DE FORMULARIO ------------ */

/* ------------ BOTON PARA REGRESAR ARRIBA ------------ */
.arriba{
    visibility: hidden;
    margin: 0 !important;
    padding: 0 !important;
    position: fixed;
    background: #494949;
    border-radius: 50px;
    border-style: none;
    right: 35px;
    bottom: 30px;
    height: 0px;
    width: 0px;
    cursor: pointer;
    outline: 0 !important;
    color:white;
    font-size: 0px;
    box-shadow: 0px 4px 8px 2px rgba(160, 140, 140, 0.25);
    -webkit-box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.25);
    -moz-box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.25);
    transition-property: height,width, background-color, color;
    transition-duration: 600ms
}
.arriba.aparece{
    visibility: visible;
    border-radius: 50px;
    border-style: none;
    right: 25px;
    bottom: 20px;
    height: 50px;
    width: 50px;
    font-size: 20px;
    box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.25);
    -webkit-box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.25);
    -moz-box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.25)
}
.arriba:hover{
    background-color: #fff;
    color:#181818;
    box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.7);
    -webkit-box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.7);
    -moz-box-shadow: 0px 4px 8px 2px rgba(0, 0, 0, 0.7)
}
/* ------------ FIN BOTON PARA REGRESAR ARRIBA ------------ */
.portfolio_img_gr{
    display:inline-block;
}
.portfolio_img_pk{
    display: none;
}
@media (max-width: 770px) {
    .portfolio_img_gr{
        display:none;
    }
    .portfolio_img_pk{
        display: inline-block;
    }
}