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

html, body { overflow: hidden; height: 100%; }

body {
    background: url(../img/logo-ps.svg) center center / contain no-repeat fixed, rgba(0,0,0,0.97);
    color: rgba(250,250,250,1);
    transform: translateZ(0px);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

:link,
:visited {
    color: rgba(255,255,255,.8);
    text-decoration: none;
    font-family: 'Cormorant Garamond';
    font-weight: 600;
    text-transform: capitalize;
}

.slides {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    perspective: 42rem;
    perspective-origin: bottom right;
}

.slide {
    display: flex;
    flex-flow: row wrap;
    background: rgba(0,100,200,.31);
    color: rgba(250,250,250,1);
    width: 100%;
    min-height: 100%;
    overflow: hidden;
    transform-style: preserve-3d;
    transform: translateZ(0);
    position: relative;
    padding: 40% 5%;
}
.slide .bg {
    background: url(../img/w1.svg) top left repeat-y,
    url(../img/w2.svg) top left repeat-y,
    url(../img/w3.svg) top left / 10% repeat-y,
    url(../img/w4.svg) top left / 10% repeat-y, 
    rgba(0,0,0,1);
    background-attachment: fixed;
    background-size: contain;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: -1;
    opacity: 0.8;
    transform: scale(2);
    transform-style: preserve-3d;
    transform-origin: 0 0;
    animation: flow-y 40s infinite ease-in-out;
}

.slide:nth-child(1) .bg::before {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: -1;
    opacity: 0.8;
    transform-origin: 0 0;
    background: url(../img/w1.svg) center center repeat-y,
    url(../img/w2.svg) left center repeat-y,
    url(../img/w3.svg) left center repeat-y,
    url(../img/w4.svg) center center repeat-y, 
    rgba(0,255,0,.7);
    background-attachment: fixed;
    background-size: contain;
    animation: flow-r 40s infinite ease-in-out;
}

@keyframes flow-y {
    50% { background-position: 0 11rem , 0 -22rem, 0 55rem, 0 -110rem, 0 30rem;  }
}
@keyframes flow-r {
    50% { background-position: 0 -1rem , 0 2rem, 0 -5rem, 0 10rem, 0 -30rem;  }
}