:root {
    --color-slide-text-bg: #FFF;
    --color-bg: #000;
}

*,
*::after,
*::before {
	box-sizing: border-box;
}

/* Page Loader */
.js .loader {
	position: fixed;
	z-index: 10000;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: var(--color-bg);
	pointer-events: none;
}

.js .loader__inner {
	position: fixed;
	top: 50%;
	left: 50%;
	width: 50px;
	height: 100px;
	margin: -50px 0 0 -25px;
	pointer-events: none;
	background: url(../img/building.svg) no-repeat 50% 50%;
	background-size: 100%;
	opacity: 0.2;
	animation: loaderAnim 0.7s linear infinite alternate forwards;
	transform-origin: 0% 100%;
}

@keyframes loaderAnim {
	to {
		opacity: 1;
	}
}

a {
	text-decoration: none;
	color: var(--color-link);
	outline: none;
}

a:hover,
a:focus {
	color: var(--color-link-hover);
	outline: none;
}

.hidden {
	position: absolute;
	overflow: hidden;
	width: 0;
	height: 0;
	pointer-events: none;
}

.message {
	position: relative;
	z-index: 100;
	display: none;
	padding: 1em;
	text-align: center;
	color: var(--color-bg);
	background: var(--color-text);
}

/* Icons */
.icon {
	display: block;
	width: 1.5em;
	height: 1.5em;
	margin: 0 auto;
	fill: currentColor;
}

main {
	position: relative;
	width: 100%;
}


/* Header */
.codrops-header {
	position: relative;
	z-index: 100;
	grid-area: header;
	padding: 0 0.5rem;
}

.codrops-header__title {
	font-size: 2.5em;
	line-height: 1;
	font-weight: normal;
	margin: 0 0 0.25rem;
}

.info {
	display: block;
	max-width: 260px;
	margin: 1rem auto;
	color: var(--color-info);
}



/* Top Navigation Style */
.codrops-links {
	position: relative;
	display: flex;
	justify-content: center;
	margin: 2rem auto 0 0.25rem;
	text-align: center;
	white-space: nowrap;
	font-size: 0.85rem;
}

.codrops-icon {
	display: inline-block;
	padding: 0.25em;
}

.slideshow {
	position: relative;
	width: 100%;
	margin-top: 1rem;
    background-color: #000;
}

.slide {
	width: 100%;
	top: 0;
	position: absolute;
	pointer-events: none;
}

.slide--current {
	position: relative;
}

.js .slide__img-wrap,
.js .slide__title,
.js .slide__subtitle,
.js .slide__quote,
.js .slide__side,
.js .slide__number,
.js .slide__explore {
	opacity: 0;
	pointer-events: none;
}

.slide--current.slide--visible .slide__img-wrap,
.slide--current.slide--visible .slide__title,
.slide--current.slide--visible .slide__subtitle,
.slide--current.slide--visible .slide__quote,
.slide--current.slide--visible .slide__number,
.slide--current.slide--visible .slide__explore {
	opacity: 1;
}

.slide--current.slide--visible .slide__explore {
	pointer-events: auto;
}

.slide__img-wrap {
	width: 100%;
	height: 50vh;
	overflow: hidden;
	position: relative;
}

.slide > :not( .slide__img-wrap ):not( .slide__title-wrap ) {
    display: none;
}

.slide--current .slide__img-wrap {
	cursor: default;
}

.slide--left,
.slide--right {
	z-index: 100;
}

.slide--left .slide__img-wrap,
.slide--right .slide__img-wrap {
	opacity: 1;
	width: 25vw;
	pointer-events: auto;
	cursor: pointer;
}

.slide--right .slide__img-wrap {
	margin-left: auto;
}

.slide__img {
	width: 100%;
	height: 100%;
	left: 0;
	top: 0;
	background-size: cover;
	background-position: 50% 50%;
	position: absolute;
	backface-visibility: hidden;
	pointer-events: none;
}

.slide--current .slide__img::after {
	content: '';
	background: rgba(57, 71, 72, 0.27);
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

.slide__img-reveal {
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;
	background: var( --bg-color );
	transform: translate3d(0,100%,0);
	pointer-events: none;
}


.slide--current .slide__title-wrap {
    position: relative;
    left: 50%;
    top: 20px;
    transform: translateX( -50% );
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    pointer-events: all;
}

.slide .slide__title-wrap > * {
    display: none;
}

.slide--current .slide__title,
.slide--current .slide__subtitle_wrapper {
    display: inline-block;
    margin: 4px;
    width: auto;
}

.slide--current .slide__title {
    padding: 10px;
    color: var( --color-bg );
    background-color: var( --color-slide-text-bg );
    font-size: 1.6rem;
    line-height: 1.6rem;
    text-transform: uppercase;
}

.slide--current .slide__subtitle {
    font-weight: 400;
}

.slide--current .slide__subtitle .slide__subtitle-inner {
    position: relative;
    display: flex;
    align-items: flex-start;
}

.slide--current .slide__subtitle .slide__subtitle-inner > * {
    display: inline-block;
    padding: 10px;
    color: #000;
    background-color: #fff;
}

.slide--current .slide__subtitle .slide__subtitle-inner a {
    position: absolute;
    left: calc( 100% + 10px );
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 4px;
    width: 40px;
    height: 40px;
    font-size: 2rem;
    font-weight: 500;
}

.slide__number {
	padding: 1rem 0;
}

.slide__explore {
	margin: 2rem 0 0 0;
	cursor: pointer;
	background: var(--color-slide-text-bg);
	color: #fff;
	padding: 0.15rem 0.25rem;
}

.slide__explore:hover {
	color: #fff;
}



@media screen and (min-width: 53em) {
	
	.content--fixed {
		position: fixed;
		z-index: 10000;
		top: 0;
		left: 0;
		display: grid;
		align-content: space-between;
		width: 100%;
		max-width: none;
		min-height: 0;
		height: 100vh;
		padding: 1rem 0;
		pointer-events: none;
		align-items: start;
		grid-template-columns: 10% 80% 10%;
		grid-template-rows: 100%;
		grid-template-areas: 'links header github';
	}
	.content--fixed a {
		pointer-events: auto;
	}
	.info {
		max-width: 16rem;
		margin: 0;
	}
	.codrops-links {
		margin-top: 0;
	}
	.slideshow {
		overflow: hidden;
		margin: 0;
		height: 100vh;
		display: grid;
		grid-template-columns: 10% 50% 10%;
		grid-column-gap: 15%;
		grid-template-rows: 100%;
		grid-template-areas: 'preview-left current-slide preview-right';
	}
	.slide {
		color: var(--color-slide-alt);
	}
	.slide::after {
		content: '+';
		position: absolute;
		left: 0;
		color: #000;
		font-size: 1.75rem;
		bottom: 70vh;
		margin: 0.5rem;
	}
	.slide--current::after {
		display: none;
	}
	.slide--right::after {
		bottom: 80vh;
		left: auto;
		right: 0;
	}
	.slide__img-wrap {
		height: 100%;
		position: absolute;
	}
	.slide__img {
		background-position: 50% 0%;
	}
	.slide--visible .slide__img-wrap,
	.slide--visible .slide__title,
	.slide--current.slide--visible .slide__side,
	.slide--current.slide--visible .slide__quote {
		opacity: 1;
	}
	.slide--visible .slide__img-wrap {
		pointer-events: auto;
	}
	.slide--current,
	.slide--left,
	.slide--right {
		position: relative;
		pointer-events: auto;
	}
	.slide--current {
		grid-area: current-slide;
	}
	.slide--left .slide__img-wrap,
	.slide--right .slide__img-wrap {
		height: 50%;
		width: 100%;
		top: 20%;
		position: relative;
	}
	.slide--left .slide__img-wrap {
		top: 30%;
	}
	.slide--left {
		border-right: 1px solid var(--color-grid);
		grid-area: preview-left;
	}
	.slide--right {
		border-left: 1px solid var(--color-grid);
		grid-area: preview-right;
	}
	.slide__side {
		position: absolute;
		right: 0.25rem;
		white-space: nowrap;
		-webkit-writing-mode: vertical-rl;
		writing-mode: vertical-rl;
		transform: rotate(180deg);
	}
	.slide__category {
		font-size: 2rem;
		margin: 0;
		font-weight: normal;
		line-height: 1;
		padding: 1.5rem 0;
		display: inline-block;
	}
	.slide__category::before {
		content: '\2022';
		font-size: 2.5rem;
		padding: 0 0 1rem;
	}
	.slide__number {
		position: absolute;
		bottom: 0;
		right: 0;
		padding: 0;
		margin: 0.5rem 1rem;
	}

	.slide__number::before {
		content: '#';
	}

	.slide--current .slide__title-wrap {
		position: absolute;
		left: -40px;
		top: 50%;
        transform: translateY( -50% );
		display: flex;
		max-width: 400px;
	}

	.slide--current .slide__title,
	.slide__subtitle {
		white-space: nowrap;
		position: relative;
	}

	.slide--current .slide__title {
        background-color: transparent;
		font-size: 2rem;
	}

	.slide--current .slide__title .slide__box,
	.slide__subtitle .slide__box {
		position: absolute;
		width: 100%;
		height: 100%;
		top: 0;
		left: 0;
		background: var(--color-slide-text-bg);
	}

    .slide--current .slide__title-inner {
        display: block !important;
    }

	.slide__title-inner,
	.slide__subtitle-inner {
		position: relative;
		display: inline-block;
	}

	.slide--left .slide__title,
	.slide--right .slide__title {
        display: block;
		-webkit-writing-mode: vertical-rl;
		writing-mode: vertical-rl;
		transform: rotate(180deg);
		position: absolute;
		font-size: 1rem;
		right: 0;
		top: 80vh;
		text-align: right;
		color: #FFF;
		margin: 1rem 0 0;
		font-weight: normal;
	}

	.slide--right .slide__title {
		left: 0;
		right: auto;
		top: 70vh;
	}

	.slide__quote {
		max-width: 25vw;
		text-align: right;
	}
}