:root {
	--black: 0, 0, 0;
	--transparent-medium: 70%;
}

.app { padding: 50px 10vw; }
.app > p { max-width: 600px; }
.app > img { object-fit: cover; }

.app > * {
	text-align: center;
	display: block;
	margin: 20px auto;
}

.author {
	margin: 0px auto;
	width: 150px;
	border-radius: 50%;
	border: 1px solid black;
	aspect-ratio: 1;
}

.gallery {
	display: flex;
	flex-direction: row;
	justify-items: center;
	gap: 20px;
}

.gallery__item {
	position: relative;
	background: grey;
	flex: 1;
	width: 100px;
	height: 300px;
	overflow: hidden;
	transition: 1s flex-grow;
}

.gallery__item > img {
	background: grey;
	height: 100%;
	width: 100%;
	object-fit: cover;
	transition: 1s width, 1s height, 1s object-fit;
	transition: 1s width, 1s height;
}


.gallery__item--active {
	background: grey;
	width: 100px;
	height: 300px;
	overflow: hidden;
	transition: 1s flex-grow;
	flex-grow: 10;
}

.gallery__item--active > img {
	width: 100%;
	height: 100%;
	background: grey;
	object-fit: cover;
	transition: 1s width, 1s height, 1s object-fit;
}

.gallery__item--active > .item__text {
	box-sizing: border-box;
	width: 100%;
	background: rgba(var(--black), var(--transparent-medium));
	transform: translate(0, -100%);
}

.item__text {
	color: white;
	background: rgba(var(--black), var(--transparent-medium));
	box-sizing: border-box;
	padding: 0px 20px;
	display: flex;
	transition: 0.5s transform;
}

.item__text > h3 {
	color: white;
	height: 20%;
	text-align: left;
	flex-grow: 1;
}

.--emphasis {
	color: black;
	font-weight: bold;
	text-decoration: underline;
}

@media (max-width: 700px){
	.gallery {
		flex-direction: column;
	}

	.gallery__item {
		width: 100%;
		height: 200px;
	}

	.gallery__item > img {
		width: 100%;
		aspect-ratio: 20/9;
	}

	.gallery__item--active {
		width: 100%;
		overflow: hidden;
		transition: 1s flex-grow;
	}
}