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

:root {
	--slide1-color: #ee9cbc;
	--slide2-color: #9d6d3d;
	--slide3-color: #b83044;
	--slide4-color: #44bae4;
	--slide5-color: #614495;
}

.slide:nth-child(1) { --slide-color: var(--slide1-color); }
.slide:nth-child(2) { --slide-color: var(--slide2-color); }
.slide:nth-child(3) { --slide-color: var(--slide3-color); }
.slide:nth-child(4) { --slide-color: var(--slide4-color); }
.slide:nth-child(5) { --slide-color: var(--slide5-color); }

body {
	font-family: 'Josefin Sans', sans-serif;
	letter-spacing: 0.1em;
	color: #1f1f21;
	background: #cecece;
	height: 100vh;
	overflow: hidden;
}

a {
	text-decoration: none;
	color: #111;
	outline: none;
}

.text--link {
  display: inline-block;
  text-decoration: none;
  color: #111;
  background: rgba(255, 255, 255, 0.8);
  padding: 0.4em 0.5em 0.25em 0.5em;
  transition: all 0.25s ease;
  outline: none;
}

.text--link:hover,
.text--link:focus {
  color: #cf5d61;
}

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

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

.btn {
	position: relative;
	margin: 0;
	padding: 0;
	border: 0;
	background: none;
}

.btn:focus {
	outline: none;
}

.btn:hover {
	color: #c2292e;
}

.btn--nav {
	font-size: 2em;
	pointer-events: auto;
}

.nav-icon--right {
	transform: scale3d(-1,-1,1);
}

.nav__triangle,
.nav__line {
	transition: transform 0.3s;
	fill: currentColor;
}

.btn--nav:hover .nav__triangle {
	transform: translate3d(-54px,0,0);
}

.btn--nav:hover .nav__line {
	transform: translate3d(17px,0,0);
}

.btn--info {
	margin: 0 2em 0 auto;
}

.btn--toggle.btn--active {
	z-index: 100;
	color: #fff;
}

.btn--toggle.btn--active:hover {
	color: #1f1f21;
}

.btn--toggle .icon:nth-child(2),
.btn--toggle.btn--active .icon:first-child {
	display: none;
}

.btn--toggle.btn--active .icon:nth-child(2) {
	display: block;
}

/* two seats on each side for free space */

.container {
	position: relative;
	overflow: hidden;
	width: 100vw;
	height: 100vh;
	perspective: 2000px;
}

.scroller {
	height: 100%;
	transform-style: preserve-3d;
}

.room {
	position: absolute;
	top: 50%;
	left: 50%;
	width: 100vw;
	height: 100vh;
	margin: -50vh 0 0 -50vw;
	pointer-events: none;
	opacity: 0;
	transform-style: preserve-3d;
}

.room--current {
	pointer-events: auto;
	opacity: 1;
}

.room__side {
	position: absolute;
	display: flex;
	justify-content: center;
	align-items: center;
	transform-style: preserve-3d;
}

.room__side--left,
.room__side--right {
	width: 4000px; /* depth */
	height: 100vh;
	background: #dbdbdb;
}

.room__side--back {
	width: 100vw;
	height: 100vh;
	background: #e9e9e9;
	box-shadow: 0 0 0 2px #e9e9e9;
	transform: translate3d(0, 0, -4000px) rotate3d(1,0,0,0.1deg) rotate3d(1,0,0,0deg);
	/* Rotation due to rendering bug in Chrome when loader slides up (images seem cut off) */
}

.room__side--right {
	right: 0;
	justify-content: flex-end;
	transform: rotate3d(0, 1, 0, -90.03deg);
	transform-origin: 100% 50%;
}

.room__side--left {
	justify-content: flex-start;
	transform: rotate3d(0, 1, 0, 90deg);
	transform-origin: 0 50%;
}

.room__side--bottom {
	width: 100vw; /* depth */
	height: 4000px;
	background: #d0d0d0;
	transform: rotate3d(1, 0, 0, 90deg) translate3d(0, -4000px, 0);
	transform-origin: 50% 0%;
}

.room__side--bottom {
	top: 100%;
}

/* Inner elements */
.room__img {
  position: relative;
  flex: none;
  max-width: 40%;
  max-height: 60%;
  margin: 0 5%;
  background: #fff;
  padding: 24px;
  border-style: solid;
  border-width: 12px;
  border-top-color: #e3e3e3;
  border-right-color: #c0c0c0;
  border-bottom-color: #a8a8a8;
  border-left-color: #d0d0d0;
  box-shadow:
    2px 2px 6px rgba(0, 0, 0, 0.4),
    0 6px 18px rgba(0, 0, 0, 0.25);
  border-radius: 2px;
  transform: translate3d(0, 0, 10px);
  backface-visibility: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Content */
.content {
	position: absolute;
	top: 0;
	left: 0;
	display: flex;
	flex-direction: column;
	width: 100%;
	height: 100vh;
	padding: 2vw;
}

/* Header */
.root-header {
	display: flex;
	align-items: center;
}

.root-header__title {
	font-size: 1.165em;
	font-weight: normal;
	margin: 0.5em 0 0 0;
}

/* Top Navigation Style */
.root-links {
	position: relative;
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 2.75em;
	margin: 0 2em 0 0;
	text-align: center;
	white-space: nowrap;
	border: 2px solid;
	background: #fff;
}

.root-links::after {
	content: '';
	position: absolute;
	top: -5%;
	left: calc(50% - 1px);
	width: 2px;
	height: 110%;
	background: currentColor;
	transform: rotate3d(0,0,1,22.5deg);
}

.root-icon {
	display: inline-block;
	padding: 0 0.65em;
}

.subject {
	font-size: 1.5em;
	margin: 0 auto;
	color: #c2292e;
}

/* Location */
.location {
	font-size: 1.165em;
	font-weight: normal;
	position: absolute;
	top: 0;
	right: 0;
	height: 100%;
	margin: 0 1.5em;
	padding: 6em 0;
	text-align: center;
	pointer-events: none;
	color: var(--slide-color);
	-webkit-writing-mode: vertical-rl;
	writing-mode: vertical-rl;
}

/* Slides */
.slides {
	position: relative;
	flex: 1;
}

.slide {
	position: absolute;
	left: 0;
	display: flex;
	flex-direction: column;
	justify-content: center;
	width: 70vw;
	height: 100%;
	margin: 7vh 0 0 10vw;
	pointer-events: none;
	opacity: 0;
}

.slide--current {
	pointer-events: auto;
	opacity: 1;
}

.slide__name {
	font-size: 15vw;
	line-height: 0.8;
	margin: 0;
	padding: 0 0 0 5vw;
	text-indent: -5vw;
	letter-spacing: -0.05em;
	text-transform: lowercase;
	color: var(--slide-color);
}

.slide__title,
.slide__date {
	text-align: right;
}

.slide__title {
	font-size: 3vw;
	font-weight: normal;
	display: flex;
	flex-direction: column;
	align-items: flex-end;
	margin: 0.75em 0 0 0;
	color: var(--slide-color);
}

.slide__date {
	font-size: 1.5vw;
	font-weight: bold;
	margin: 1.15em 0 0 0;
	text-transform: uppercase;
	color: var(--slide-color);
}

.slide__number {
	font-size: 0.4em;
	display: inline-block;
	margin: 0.5em 0 0 0;
	padding: 0.4em 0.5em 0.25em 0.5em;
	color: #fff;
	background: var(--slide-color);
}

/* Nav */
.nav {
	display: flex;
	justify-content: space-between;
	width: 100%;
	margin: auto 0 0 0;
	pointer-events: none;
}

/* Overlay with menu */
.overlay {
	position: fixed;
	z-index: 10;
	top: 0;
	left: 0;
	display: flex;
	justify-content: center;
	align-items: center;
	width: 100%;
	height: 100%;
	pointer-events: none;
	opacity: 0;
}

.overlay--loader {
	z-index: 1000;
	background: #fff;
}

.overlay--info {
	background: color-mix(in srgb, var(--slide1-color) 85%, transparent);
}

body.slide-1-active .overlay--info { background: color-mix(in srgb, var(--slide1-color) 85%, transparent); }
body.slide-2-active .overlay--info { background: color-mix(in srgb, var(--slide2-color) 85%, transparent); }
body.slide-3-active .overlay--info { background: color-mix(in srgb, var(--slide3-color) 85%, transparent); }
body.slide-4-active .overlay--info { background: color-mix(in srgb, var(--slide4-color) 85%, transparent); }
body.slide-5-active .overlay--info { background: color-mix(in srgb, var(--slide5-color) 85%, transparent); }

.overlay--menu {
	background: color-mix(in srgb, var(--slide1-color) 85%, transparent);
}

body.slide-1-active .overlay--menu { background: color-mix(in srgb, var(--slide1-color) 85%, transparent); }
body.slide-2-active .overlay--menu { background: color-mix(in srgb, var(--slide2-color) 85%, transparent); }
body.slide-3-active .overlay--menu { background: color-mix(in srgb, var(--slide3-color) 85%, transparent); }
body.slide-4-active .overlay--menu { background: color-mix(in srgb, var(--slide4-color) 85%, transparent); }
body.slide-5-active .overlay--menu { background: color-mix(in srgb, var(--slide5-color) 85%, transparent); }

.js .overlay--active {
	pointer-events: auto;
	opacity: 1;
}

.menu {
	margin: 0;
	padding: 0;
	list-style: none;
}

.menu__item {
	font-size: 7vh;
	margin: 0.25em 0;
	padding: 0;
	text-transform: lowercase;
}

.menu__item--current {
	font-weight: bold;
}

.menu__link {
	color: #fff;
}

.menu__link:focus,
.menu__link:hover {
	color: #1f1f21;
}

.info {
	color: white;
	font-size: 1.5em;
	line-height: 1.4;
	width: 60vw;
	min-width: calc(320px - 2em);
	max-width: 900px;
	margin: 0;
	padding: 1em;
}

.loader {
	display: flex;
}

.loader div {
	width: 30px;
	height: 30px;
	margin: -30px 0.2em 0;
	border: 4px solid;
	background: #e9e9e9;
	animation: anim-loader 0.8s alternate infinite forwards;
	animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
}

.loader div:nth-child(2) {
	border-radius: 50%;
	background: #c2292e;
	animation-delay: 0.15s;
}

.loader div:nth-child(3) {
	animation-delay: 0.3s;
}

@keyframes anim-loader {
	100% {
		transform: translate3d(0,30px,0) scale3d(0.9,0.9,1);
	}
}

@media screen and (max-width: 50em) {
	.subject {
		display: none;
	}
	.root-links {
		margin: 0 0.5em 0 0;
	}
	.btn--info {
		margin-right: 1.25em;
	}
	.location {
		font-size: 0.85em;
		position: relative;
		height: auto;
		margin: 1em 0 0 0;
		padding: 0;
		text-align: left;
		-webkit-writing-mode: horizontal-tb;
		writing-mode: horizontal-tb;
	}
	.slide {
		width: 100%;
		margin: 7vh 0 0 0;
	}
	.slide__name {
		padding: 0 0 0 12vw;
	}
	.slide__title {
		font-size: 1.5em;
	}
	.slide__date {
		font-size: 0.65em;
	}
	.nav {
		position: absolute;
		top: 7em;
		left: 0;
		width: 100%;
		padding: 1em;
	}
	.nav__triangle {
		transform: translate3d(-54px,0,0);
	}
	.nav__line {
		transform: translate3d(17px,0,0);
	}
	.btn--nav:hover {
		color: currentColor;
	}
	.info {
		font-size: 0.95em;
		width: 100vw;
	}
}