/*
 * Gallery component styles.
 * Independent clean-room implementation from a written spec.
 * Covers the photo grid/slider gallery and its fullscreen lightbox.
 */

.ocf-gallery {
	background: var(--ocf-bg);
}

.ocf-gallery-header,
.ocf-gallery__header {
	margin-bottom: 2rem;
	justify-content: space-between;
	gap: 1rem;
	display: flex;
	align-items: end;
}

.ocf-gallery-heading {
	max-width: 720px;
}

.ocf-gallery-intro,
.ocf-gallery__intro {
	margin-top: 1rem;
	color: var(--ocf-body);
}

.ocf-gallery-nav {
	gap: 0.5rem;
	display: flex;
}

.ocf-gallery-nav button {
	width: 2.5rem;
	place-items: center;
	padding: 0;
	line-height: 1;
	height: 2.5rem;
	display: inline-grid;
	color: var(--ocf-heading);
	border-radius: var(--radius-sm);
	border: 1px solid var(--ocf-border);
	background: var(--ocf-bg);
}

.ocf-gallery-viewport {
	overflow: hidden;
}

.ocf-gallery-track {
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: var(--grid-gap);
	display: grid;
}

/* Nested inside .ocf-gallery, the track switches to slider (flex) mode. */
.ocf-gallery .ocf-gallery-track {
	transition: transform 0.35s ease;
	gap: var(--grid-gap);
	display: flex;
}

.ocf-gallery .ocf-gallery-card {
	flex: 0 0 calc((100% - (var(--grid-gap) * 2)) / 3);
}

.ocf-gallery__grid {
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: var(--grid-gap);
	display: grid;
}

.ocf-gallery-card,
.ocf-gallery__item {
	overflow: hidden;
	margin: 0;
	border-radius: var(--card-radius);
	border: var(--card-border-width) solid var(--card-border-color);
	background: var(--ocf-bg);
}

.ocf-gallery-open {
	width: 100%;
	text-align: inherit;
	padding: 0;
	display: block;
	color: inherit;
	border: 0;
	background: transparent;
}

.ocf-gallery-card img,
.ocf-gallery__item img,
.ocf-gallery__placeholder {
	width: 100%;
	object-fit: cover;
	background: var(--ocf-bg-alt);
	aspect-ratio: 4 / 3;
}

.ocf-gallery-card figcaption {
	display: none;
}

.ocf-gallery__caption {
	padding: 0.75rem;
	font-size: var(--font-label-size);
	color: var(--ocf-label);
}

/* Lightbox modal. */

.ocf-gallery-lightbox {
	z-index: 9999;
	position: fixed;
	padding: clamp(1rem, 3vw, 2rem);
	inset: 0;
	display: none;
}

.ocf-gallery-lightbox.is-open {
	place-items: center;
	display: grid;
}

.ocf-gallery-lightbox__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(12, 14, 18, 0.86);
}

.ocf-gallery-lightbox__panel {
	z-index: 1;
	width: min(100%, 72rem);
	position: relative;
	max-height: calc(100vh - 4rem);
	display: grid;
	align-items: center;
}

.ocf-gallery-lightbox__figure {
	margin: 0;
	justify-items: center;
	gap: 1rem;
	display: grid;
}

.ocf-gallery-lightbox__figure img {
	width: auto;
	object-fit: contain;
	max-width: 100%;
	max-height: calc(100vh - 9rem);
	background: transparent;
}

.ocf-gallery-lightbox__figure figcaption {
	min-height: 1.5rem;
	font-size: var(--font-label-size);
	color: #fff;
}

.ocf-gallery-lightbox__close,
.ocf-gallery-lightbox__nav {
	z-index: 2;
	width: 2.75rem;
	position: absolute;
	place-items: center;
	height: 2.75rem;
	display: inline-grid;
	color: #fff;
	border-radius: var(--radius-sm);
	border: 1px solid rgba(255, 255, 255, 0.35);
	background: rgba(255, 255, 255, 0.08);
}

.ocf-gallery-lightbox__close {
	transform: translateY(calc(-100% - 0.75rem));
	top: 0;
	right: 0;
}

.ocf-gallery-lightbox__nav {
	transform: translateY(-50%);
	top: 50%;
}

.ocf-gallery-lightbox__nav--prev {
	transform: translate(-50%, -50%);
	left: 0;
}

.ocf-gallery-lightbox__nav--next {
	transform: translate(50%, -50%);
	right: 0;
}

.ocf-gallery-lightbox svg,
.ocf-gallery-nav svg {
	width: 1.25rem;
	height: 1.25rem;
	display: block;
}

@media (max-width: 900px) {
	.ocf-gallery-track,
	.ocf-gallery__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.ocf-gallery .ocf-gallery-card {
		flex-basis: calc((100% - var(--grid-gap)) / 2);
	}
}

@media (max-width: 640px) {
	.ocf-gallery-header {
		display: grid;
	}

	.ocf-gallery-nav {
		justify-self: end;
	}

	.ocf-gallery-track,
	.ocf-gallery__grid {
		grid-template-columns: 1fr;
	}

	.ocf-gallery .ocf-gallery-card {
		flex-basis: 100%;
	}

	.ocf-gallery-lightbox__nav--prev {
		transform: translateY(-50%);
		left: 0.5rem;
	}

	.ocf-gallery-lightbox__nav--next {
		transform: translateY(-50%);
		right: 0.5rem;
	}
}