.mosaic-gallery__grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0.75rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

/* Fewer columns on smaller screens, whatever is chosen for large ones. */
@media (min-width: 768px) {
	.mosaic-gallery--cols-3 .mosaic-gallery__grid,
	.mosaic-gallery--cols-4 .mosaic-gallery__grid,
	.mosaic-gallery--cols-5 .mosaic-gallery__grid,
	.mosaic-gallery--cols-6 .mosaic-gallery__grid {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

@media (min-width: 1024px) {
	.mosaic-gallery--cols-3 .mosaic-gallery__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
	.mosaic-gallery--cols-4 .mosaic-gallery__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
	.mosaic-gallery--cols-5 .mosaic-gallery__grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
	.mosaic-gallery--cols-6 .mosaic-gallery__grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

.mosaic-gallery__item {
	margin: 0;
	min-inline-size: 0;
}

.mosaic-gallery__link {
	display: block;
}

.mosaic-gallery__item img {
	display: block;
	inline-size: 100%;
	block-size: auto;
}

.mosaic-gallery--ratio-square img { aspect-ratio: 1 / 1; object-fit: cover; }
.mosaic-gallery--ratio-4-3 img { aspect-ratio: 4 / 3; object-fit: cover; }
.mosaic-gallery--ratio-3-2 img { aspect-ratio: 3 / 2; object-fit: cover; }
.mosaic-gallery--ratio-16-9 img { aspect-ratio: 16 / 9; object-fit: cover; }
.mosaic-gallery--ratio-3-4 img { aspect-ratio: 3 / 4; object-fit: cover; }

.mosaic-gallery__link {
	cursor: zoom-in;
}

.mosaic-gallery__link:focus-visible {
	outline: var(--mosaic-focus-width, 3px) solid var(--mosaic-color-focus, currentColor);
	outline-offset: 2px;
}

.mosaic-gallery__caption {
	display: block;
	margin-block-start: 0.35rem;
	font-size: 0.875em;
}

/* The big picture. */
.mosaic-lightbox {
	inline-size: 100%;
	max-inline-size: none;
	block-size: 100%;
	max-block-size: none;
	margin: 0;
	padding: 0;
	color: #fff;
	background: rgba(0, 0, 0, 0.92);
	border: 0;
}

.mosaic-lightbox::backdrop {
	background: rgba(0, 0, 0, 0.92);
}

.mosaic-lightbox__figure {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	block-size: 100%;
	margin: 0;
	padding: 3.5rem 4rem;
	box-sizing: border-box;
}

.mosaic-lightbox__img {
	max-inline-size: 100%;
	max-block-size: 100%;
	min-block-size: 0;
	object-fit: contain;
}

.mosaic-lightbox__caption {
	margin-block-start: 0.75rem;
	text-align: center;
}

.mosaic-lightbox__btn {
	position: absolute;
	display: inline-grid;
	place-items: center;
	inline-size: 2.75rem;
	block-size: 2.75rem;
	padding: 0;
	color: #fff;
	font-size: 1.5rem;
	line-height: 1;
	background: rgba(255, 255, 255, 0.14);
	border: 0;
	border-radius: 50%;
	cursor: pointer;
}

.mosaic-lightbox__btn:hover {
	background: rgba(255, 255, 255, 0.28);
}

.mosaic-lightbox__btn:focus-visible {
	outline: 3px solid #fff;
	outline-offset: 2px;
}

.mosaic-lightbox__close {
	inset-block-start: 0.75rem;
	inset-inline-end: 0.75rem;
}

.mosaic-lightbox__prev,
.mosaic-lightbox__next {
	inset-block-start: 50%;
	margin-block-start: -1.375rem;
}

.mosaic-lightbox__prev {
	inset-inline-start: 0.75rem;
}

.mosaic-lightbox__next {
	inset-inline-end: 0.75rem;
}

/* The arrows point toward the side they move to in either direction. */
[dir="rtl"] .mosaic-lightbox__prev span,
[dir="rtl"] .mosaic-lightbox__next span {
	display: inline-block;
	transform: scaleX(-1);
}

@media (max-width: 600px) {
	.mosaic-lightbox__figure {
		padding: 3.5rem 0.75rem;
	}
}

/* ---- layouts ---- */
.mosaic-gallery {
	--mosaic-gallery-accent: var(--mosaic-color-primary, #2b4acb);
	--mosaic-gallery-row: 14rem;
}

/* Masonry: columns of pictures of different heights. */
.mosaic-gallery--masonry .mosaic-gallery__grid {
	display: block;
	column-count: 2;
	column-gap: 0.75rem;
}

@media (min-width: 768px) {
	.mosaic-gallery--masonry.mosaic-gallery--cols-3 .mosaic-gallery__grid,
	.mosaic-gallery--masonry.mosaic-gallery--cols-4 .mosaic-gallery__grid,
	.mosaic-gallery--masonry.mosaic-gallery--cols-5 .mosaic-gallery__grid,
	.mosaic-gallery--masonry.mosaic-gallery--cols-6 .mosaic-gallery__grid { column-count: 3; }
}

@media (min-width: 1024px) {
	.mosaic-gallery--masonry.mosaic-gallery--cols-4 .mosaic-gallery__grid { column-count: 4; }
	.mosaic-gallery--masonry.mosaic-gallery--cols-5 .mosaic-gallery__grid { column-count: 5; }
	.mosaic-gallery--masonry.mosaic-gallery--cols-6 .mosaic-gallery__grid { column-count: 6; }
}

.mosaic-gallery--masonry .mosaic-gallery__item {
	break-inside: avoid;
	margin-block-end: 0.75rem;
}

.mosaic-gallery--masonry img {
	block-size: auto;
}

/* Justified rows: each picture grows in proportion to its shape, so every row fills the width. */
.mosaic-gallery--justified .mosaic-gallery__grid {
	display: flex;
	flex-wrap: wrap;
}

.mosaic-gallery--justified .mosaic-gallery__item {
	flex: calc(var(--mosaic-g-r, 1.5) * 100) 1 calc(var(--mosaic-g-r, 1.5) * var(--mosaic-gallery-row));
}

.mosaic-gallery--justified img {
	block-size: 100%;
	aspect-ratio: auto;
	object-fit: cover;
}

.mosaic-gallery--justified .mosaic-gallery__item > .mosaic-gallery__link {
	block-size: 100%;
}

/* Mosaic: some tiles are big or tall, and the rest fill the gaps. */
.mosaic-gallery--packery .mosaic-gallery__grid {
	grid-auto-flow: dense;
	grid-auto-rows: 9rem;
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 768px) {
	.mosaic-gallery--packery .mosaic-gallery__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
	.mosaic-gallery--packery .mosaic-gallery__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); grid-auto-rows: 11rem; }
}

.mosaic-gallery--packery .mosaic-gallery__item {
	position: relative;
	overflow: hidden;
}

.mosaic-gallery--packery .mosaic-gallery__item--big {
	grid-column: span 2;
	grid-row: span 2;
}

.mosaic-gallery--packery .mosaic-gallery__item--tall {
	grid-row: span 2;
}

.mosaic-gallery--packery .mosaic-gallery__link,
.mosaic-gallery--packery img {
	block-size: 100%;
	aspect-ratio: auto;
	object-fit: cover;
}

/* ---- hover ---- */
.mosaic-gallery__item {
	position: relative;
	overflow: hidden;
}

.mosaic-gallery--hover-zoom .mosaic-gallery__item img {
	transition: transform 0.4s ease;
}

.mosaic-gallery--hover-zoom .mosaic-gallery__item:hover img,
.mosaic-gallery--hover-zoom .mosaic-gallery__item:focus-within img {
	transform: scale(1.08);
}

.mosaic-gallery__over {
	position: absolute;
	inset-inline: 0;
	inset-block-end: 0;
	padding: 2rem 0.75rem 0.65rem;
	background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent);
	color: #fff;
	font-size: 0.9rem;
	opacity: 0;
	pointer-events: none;
	transform: translateY(0.5rem);
	transition: opacity 0.25s ease, transform 0.25s ease;
}

.mosaic-gallery__item:hover .mosaic-gallery__over,
.mosaic-gallery__item:focus-within .mosaic-gallery__over {
	opacity: 1;
	transform: none;
}

@media (hover: none) {
	.mosaic-gallery__over {
		opacity: 1;
		transform: none;
	}
}

/* ---- filter ---- */
.mosaic-gallery__filters {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-block-end: 1rem;
}

.mosaic-gallery__filters[hidden] {
	display: none;
}

.mosaic-gallery__filter {
	padding: 0.4rem 1rem;
	border: 1px solid var(--mosaic-gallery-accent);
	border-radius: 999px;
	background: transparent;
	color: var(--mosaic-gallery-accent);
	cursor: pointer;
	font: inherit;
}

.mosaic-gallery__filter.is-active {
	background: var(--mosaic-gallery-accent);
	color: #fff;
}

.mosaic-gallery__item[hidden] {
	display: none;
}

@media (prefers-reduced-motion: reduce) {
	.mosaic-gallery--hover-zoom .mosaic-gallery__item img,
	.mosaic-gallery__over {
		transition: none;
	}

	.mosaic-gallery--hover-zoom .mosaic-gallery__item:hover img {
		transform: none;
	}
}