html, body {
	 margin: 0;
	 height: 100%;
}
/* ............................................................... */
/* ............................................................... */
/* ............................................................... */
 #retrobg {
	 position: relative;
	 overflow: hidden;
	 height: 100%;
	 color: #a3c;
	 background-color: #000;
}
/* ............................................................... */
 #retrobg-sky {
	 position: absolute;
	 display: flex;
	 align-items: flex-end;
	 justify-content: center;
	 top: 0;
	 width: 100%;
	 height: 55%;
	 background: linear-gradient(#214 75%, #249);
}
/* ............................................................... */
 #retrobg-sunWrap {
	 position: relative;
	 width: 40%;
	 margin-bottom: -15%;
}
 #retrobg-sun {
	 --glow-color: #d44;
	 padding-top: 100%;
	 border-radius: 50%;
	 background-image: linear-gradient(#fcdf11, #ff623f, #fe2085 50%);
	 box-shadow: 0 0 160px 80px var(--glow-color);
	 animation: 2s ease infinite alternate retrobg-sun-glow-anim;
}
 .retrobg-shutdown #retrobg-sun {
	 background-image: linear-gradient(#000, #000 40%);
	 --glow-color: #000;
}
 @keyframes retrobg-sun-glow-anim {
	 from {
		 box-shadow: 0 0 160px 80px var(--glow-color);
	}
	 to {
		 box-shadow: 0 0 200px 95px var(--glow-color);
	}
}
/* ............................................................... */
 #retrobg-stars {
	 position: absolute;
	 width: 100%;
	 height: 100%;
}
 .retrobg-star {
	 position: absolute;
	 border-radius: 50%;
	 width: 2px;
	 height: 2px;
	 background-color: #fff;
}
/* ............................................................... */
 #retrobg-mountains {
	 position: absolute;
	 width: 100%;
	 height: 30%;
}
 .retrobg-mountain {
	 position: absolute;
	 width: 30%;
	 height: 100%;
	 background-image: linear-gradient(#000 70%, #111 85%, #fff 1);
}
 #retrobg-mountains-left {
	 left: 0;
	 clip-path: polygon(0% 100%, 0% 55%, 5% 60%, 10% 55%, 20% 50%, 25% 42%, 30% 38%, 33% 35%, 40% 45%, 50% 50%, 60% 70%, 70% 85%, 75% 82%, 80% 91%, 85% 90%, 90% 95%, 95% 98%, 100% 100%);
}
 #retrobg-mountains-right {
	 right: 0;
	 clip-path: polygon(0% 100%, 5% 95%, 10% 85%, 15% 87%, 20% 80%, 25% 78%, 30% 65%, 40% 70%, 50% 57%, 60% 53%, 67% 68%, 70% 70%, 75% 66%, 80% 55%, 90% 50%, 95% 60%, 100% 57%, 100% 100%);
}
/* ............................................................... */
 #retrobg-cityWrap {
	 position: absolute;
	 width: 50%;
	 margin-left: -1%;
}
 #retrobg-city {
	 padding-top: 20%;
}
 .retrobg-building {
	 position: absolute;
	 width: 5%;
	 height: 100%;
	 bottom: 0;
	 border-radius: 4px 4px 0 0;
	 background-image: linear-gradient(0deg, rgba(17, 17, 34, 0), #112 30px, #000);
}
 .retrobg-building:nth-child( odd) {
	 background-image: linear-gradient(0deg, rgba(24, 24, 42, 0), #223 30px, #000);
}
 .retrobg-antenna::after {
	 content: "";
	 position: absolute;
	 left: 50%;
	 margin-left: calc(-1px - 5%);
	 bottom: 100%;
	 width: 10%;
	 min-width: 2px;
	 height: 33%;
	 background-color: #000;
}
/* ............................................................... */
 #retrobg-ground {
	 position: absolute;
	 overflow: hidden;
	 width: 100%;
	 height: 45%;
	 bottom: 0;
	 border-top: 2px solid #bf578c;
	 background-color: #000;
}
 .retrobg-shutdown #retrobg-ground {
	 border-color: #000;
}
 #retrobg-groundShadow {
	 position: absolute;
	 top: 0;
	 width: 100%;
	 height: 100%;
	 background-image: linear-gradient(#000 0%, transparent);
}
/* ............................................................... */
 #retrobg-linesWrap {
	 height: 100%;
	 perspective: 1000px;
	 perspective-origin: center top;
}
 #retrobg-lines {
	 position: absolute;
	 width: 100%;
	 height: 100%;
	 transform-origin: top center;
	 animation: 0.35s linear infinite retrobg-lines-anim;
}
 .retrobg-shutdown #retrobg-lines {
	 animation-duration: 5s;
}
 @keyframes retrobg-lines-anim {
	 from {
		 transform: rotateX(84deg) translateY(0);
	}
	 to {
		 transform: rotateX(84deg) translateY(100px);
	}
}
 #retrobg-hlines, #retrobg-vlines {
	 position: absolute;
	 left: calc(( 900% - 100% ) / -2);
	 width: 900%;
	 height: 500%;
}
 #retrobg-vlines {
	 display: flex;
	 justify-content: center;
}
 .retrobg-hline, .retrobg-vline {
	 width: 100%;
	 height: 100%;
	 background-color: currentColor;
}
 .retrobg-hline {
	 height: 3px;
}
 .retrobg-vline {
	 width: 3px;
}
 .retrobg-hline + .retrobg-hline {
	 margin-top: 98px;
}
 .retrobg-vline + .retrobg-vline {
	 margin-left: 48px;
}