:root {
	--d: 700ms;
	--e: cubic-bezier(0.19, 1, 0.22, 1);
	--font-sans: "BP", sans-serif;
	--font-serif: "BP", serif;
}

body {
	display: grid;
	place-items: center;
}
.page-content {
	display: grid;
	grid-gap: 1rem;
	padding: 1rem;
	max-width: 1024px;
	margin: 0 auto;
	font-family: var(--font-sans);
}
@media (min-width: 600px) {
	.page-content {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (min-width: 800px) {
	.page-content {
		grid-template-columns: repeat(4, 1fr);
	}
}
.card {
	position: relative;
	display: flex;
	align-items: flex-end;
	overflow: hidden;
	float: left;
	padding: 1rem;
	width: 100%;
	height: 100%;
	text-align: center;
	color: whitesmoke;
	box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1), 0 2px 2px rgba(0, 0, 0, 0.1), 0 4px 4px rgba(0, 0, 0, 0.1), 0 8px 8px rgba(0, 0, 0, 0.1), 0 16px 16px rgba(0, 0, 0, 0.1);
}

.card:before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 110%;
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
	transition: transform calc(var(--d) * 1.5) var(--e);
	pointer-events: none;
}
.card:after {
	content: "";
	display: block;
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 200%;
	pointer-events: none;
	background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.009) 11.7%, rgba(0, 0, 0, 0.034) 22.1%, rgba(0, 0, 0, 0.072) 31.2%, rgba(0, 0, 0, 0.123) 39.4%, rgba(0, 0, 0, 0.182) 46.6%, rgba(0, 0, 0, 0.249) 53.1%, rgba(0, 0, 0, 0.32) 58.9%, rgba(0, 0, 0, 0.394) 64.3%, rgba(0, 0, 0, 0.468) 69.3%, rgba(0, 0, 0, 0.54) 74.1%, rgba(0, 0, 0, 0.607) 78.8%, rgba(0, 0, 0, 0.668) 83.6%, rgba(0, 0, 0, 0.721) 88.7%, rgba(0, 0, 0, 0.762) 94.1%, rgba(0, 0, 0, 0.79) 100%);
	transform: translateY(-50%);
	transition: transform calc(var(--d) * 2) var(--e);
}
.card-0:before {
	background-image: url(../../assets/img/carlos.jpg);
}
.card-1:before {
	background-image: url(../../assets/img/julio.jpg);
}
.card-2:before {
	background-image: url(../../assets/img/rene.jpg);
}
.card-3:before {
	background-image: url(../../assets/img/luis.jpg);
}
.content {
	position: relative;
	display: flex;
	flex-direction: column;
	align-items: center;
	width: 100%;
	padding: 1rem;
	transition: transform var(--d) var(--e);
	z-index: 1;
}
.content > * + * {
	margin-top: 1rem;
}
.title {
	font-size: 2rem;
	font-weight: bold;
	line-height: 1.2;
}
.copy {
	font-family: var(--font-serif);
	font-size: 1.75vh;
	font-style: italic;
	line-height: 1.35;
}
.btn {
	cursor: pointer;
	margin-top: 1.5rem;
	padding: 0.75rem 1.5rem;
	font-size: 0.65rem;
	font-weight: bold;
	letter-spacing: 0.025rem;
	text-transform: uppercase;
	color: white;
	background-color: black;
	border: none;
}
.btn:hover {
	background-color: #0d0d0d;
}
.btn:focus {
	outline: 1px dashed yellow;
	outline-offset: 3px;
}
@media (hover: hover) and (min-width: 600px) {
	.div-card-front .card:after {
		transform: translateY(0);
	}
	.div-card-front .content {
		transform: translateY(calc(100% - 4.5rem));
	}
	.div-card-front .content > *:not(.title) {
		opacity: 0;
		transform: translateY(1rem);
		transition: transform var(--d) var(--e), opacity var(--d) var(--e);
	}
	.div-card-front .card:hover,
	.div-card-front .card:focus-within {
		align-items: center;
	}
	.div-card-front .card:hover:before,
	.div-card-front .card:focus-within:before {
		transform: translateY(-4%);
	}
	.div-card-front .card:hover:after,
	.div-card-front .card:focus-within:after {
		transform: translateY(-50%);
	}
	.div-card-front .card:hover .content,
	.div-card-front .card:focus-within .content {
		transform: translateY(0);
	}
	.div-card-front .card:hover .content > *:not(.title),
	.div-card-front .card:focus-within .content > *:not(.title) {
		opacity: 1;
		transform: translateY(0);
		transition-delay: calc(var(--d) / 8);
	}
	.div-card-front .card:focus-within:before,
	.div-card-front .card:focus-within:after,
	.div-card-front .card:focus-within .content,
	.div-card-front .card:focus-within .content > *:not(.title) {
		transition-duration: 0s;
	}
}

.div-card {
	background-color: transparent;
	width: 20%;
	height: 90%;
	perspective: 1000px;
}

.div-card-inner {
	position: relative;
	width: 100%;
	height: 100%;
	text-align: center;
	transition: transform 0.6s;
	transform-style: preserve-3d;
	/* box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2); */
}

.div-card-active .div-card-inner {
	transform: rotateY(180deg);
}

.div-card-front,
.div-card-back {
	position: absolute;
	width: 100%;
	height: 100%;
	backface-visibility: hidden;
}

div.div-back {
	position: relative;
	display: flex;
	align-items: flex-end;
	overflow: hidden;
	float: left;
	padding: 1rem;
	width: 100%;
	height: 100%;
	text-align: center;
	color: whitesmoke;
}

h2 {
	width: 80%;
	padding: 0 10%;
	height: 100%;
	color: #ffffff;
	font-family: "BP";
}

.div-card-back {
	background-color: #1f1f1f;
	color: white;
	transform: rotateY(180deg);
}

.div-card-back .card:before {
	background-image: none;
	background: #000000;
}

.wrapper {
	height: 100vh;
	overflow-y: auto;
	overflow-x: hidden;
	perspective: 10px;
	background-color: #000000;
}

header {
	position: relative;
	height: 100%;
	transform-style: preserve-3d;
	z-index: -1;
}

.background,
.foreground {
	position: absolute;
	height: 100%;
	width: 100%;
	object-fit: cover;
	z-index: -1;
}
section {
	font-size: 2rem;
	padding: 2rem;
	background-color: #333;
	color: white;
}