body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: #000;
    overflow-x: hidden;
}
.container {
    background: url(../imgs/sillas1_opt.jpg) no-repeat;
    background-size: cover;
    height: 100vh;
}

header {
    display: flex;
    padding: .5em 1em;
}

header .logo {
    height: 40px;
    width: 60px;
}

header .logo img {
    width: 100%;
    height: 100%;
}

header .titulo__main {
    color: #fff;
    font-family: sans-serif;
    font-size: .9em;
    text-align: center;
    width: 100%;
}

.box__main {
    display: none;
    border: 3px solid #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0,0,0,0.5);
    border-radius: 50%;
    height: 250px;
    width: 250px;
}

.circle__main {
    position: absolute;
    border: 3px solid navy;
    top: -50px;
    left: 50px;
    height: 400px;
    width: 400px;
    border-radius: 50%;
    background-color: steelblue;
    box-shadow: 10px 10px 5px 0px rgba(0,0,0,0.33);
    z-index: -1;
}

.circle__main h1 {
    position: absolute;
    top: 150px;
    left: 80px;
    transform: translateY(-50%);
    font-family: sans-serif;
    font-size: 5em;
    color: #fff;
    white-space: nowrap;
}

/* Menú circular */

.share {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 50px;
    height: 50px;
}

.share ul {
    position: relative;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}

.share ul li {
    position: absolute;
    top: 0;
    left: 0;
    list-style: none;
    width: 100%;
    height: 100%;
    background-color: #fff;
    transition: 0.5s;
    overflow: hidden;
    border-radius: 10px;
    transform: scale(0);
    
}

.share ul.active li {
    transform: scale(.95);
}


.share ul li a {
    text-decoration: none;
    font-family: sans-serif;
    position: absolute;
    top: 0;
    left:0;
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: .8em;
    font-weight: bold;
    transition: .5s;
    transform: rotate(-45deg);
    color: #262626;
}
.share ul li:nth-child(even) a {
    color: #e91e63;
}

.share ul li .fab {
    font-size: 2em;
    line-height: initial;
    color: #e91e63;
}

.share ul li:nth-child(even) .fab {
    color: #262626;
}
.share ul li a:hover {
    background-color: #2196f3;
}

.share ul.active li:nth-child(1) {
    top: -100%;
    left: -100%;
    transition-delay: 0s;
}

.share ul.active li:nth-child(2) {
    top: -100%;
    left: 0;
    transition-delay: .2s;
}

.share ul.active li:nth-child(3) {
    top: -100%;
    left: 100%;
    transition-delay: .4s;
}

.share ul.active li:nth-child(4) {
    top: 0;
    left: 100%;
    transition-delay: .6s;
}

.share ul.active li:nth-child(5) {
    top: 100%;
    left: 100%;
    transition-delay: .8s;
}

.share ul.active li:nth-child(6) {
    top: 100%;
    left: 0;
    transition-delay: 1s;
}

.share ul.active li:nth-child(7) {
    top: 100%;
    left: -100%;
    transition-delay: 1.2s;
}

.share ul.active li:nth-child(8) {
    top: 0;
    left: -100%;
    transition-delay: 1.4s;
}

.toggle {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #e91e63;
    transform: scale(.95);
    overflow: hidden;
    border-radius: 10px;
    z-index: 1;
    cursor: pointer;
}

.toggle:before {
    content: '\f0e8';
    font-family: 'Font Awesome 5 Pro';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    color: #fff;
    text-align: center;
    line-height: 50px;
    font-size: 1.5em;
    transform: rotate(-45deg);
}

.toggle.active:before {
    content: '\f00d';
}

footer {
    position: absolute;
    padding: 1em;
    width: 100%;
    display: flex;
    bottom: 0;
    color: #c2c2c2;
    justify-content: center;
    font-size: .8em;
    background-color: rgba(0,0,0,0.3);
}

footer .izquierdo {
    width: 50%;
    border-right: 3px solid #c2c2c2;
    padding: 5px 10px;
    text-align: right;
}

footer .derecho {
    width: 50%;
    padding: 5px 10px;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bold;
}

/* ESTILOS NORMALES (para móviles en vertical) */
    
 
/* Móviles en horizontal o tablets en vertical */

@media (min-width: 768px) {     
    footer .izquierdo, footer .derecho {
        padding: 0 10px;
        width: 40%;
    }

    header .logo {
        height: 60px;
        width: 80px;
        margin: 10px;
    }

    header .titulo__main {
        margin-top: 10px;
        font-size: 1.5em;
    }

}
 
/* Tablets en horizonal y escritorios normales */

@media (min-width: 1024px) { 
    footer {
        padding: 10px;
        color: #c2c2c2;
    }
}
 
/* Escritorios muy anchos */
@media (min-width: 1200px) {
    header .logo {
        height: 100px;
        width: 160px;
        margin: 10px;
    }

    header .titulo__main {
        margin-top: 20px;
        font-size: 3em;
    }
}

/* preloader */

.preloader {
    height: 100vh;
    width: 100vw;
    /* background-image:url(../imgs/loading.gif);
    background-attachment:fixed;
    background-position:center;
    background-color:#000;
    background-repeat: no-repeat; */
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    transition: height 1s;
    text-align: center;
    font-family: sans-serif;
}

.preloader img {
    height: 100px; 
}

/* Elipsis */

.lds-ellipsis {
  display: inline-block;
  position: relative;
  width: 64px;
  height: 64px;
}
.lds-ellipsis div {
  position: absolute;
  top: 27px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: steelblue;
  animation-timing-function: cubic-bezier(0, 1, 1, 0);
}
.lds-ellipsis div:nth-child(1) {
  left: 6px;
  animation: lds-ellipsis1 0.6s infinite;
}
.lds-ellipsis div:nth-child(2) {
  left: 6px;
  animation: lds-ellipsis2 0.6s infinite;
}
.lds-ellipsis div:nth-child(3) {
  left: 26px;
  animation: lds-ellipsis2 0.6s infinite;
}
.lds-ellipsis div:nth-child(4) {
  left: 45px;
  animation: lds-ellipsis3 0.6s infinite;
}
@keyframes lds-ellipsis1 {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes lds-ellipsis3 {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(0);
  }
}
@keyframes lds-ellipsis2 {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(19px, 0);
  }
}