/* Zomerfeest Galerij */

.zfg-gallery,
.zfg-albums {
	--zfg-min: var(--zfg-set-min, 220px);
	--zfg-gap: 8px;
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(var(--zfg-min), 1fr));
	gap: var(--zfg-gap);
	margin: 1.5rem 0;
	padding: 0;
	list-style: none;
}

/* Grid met foto's */

.zfg-item {
	position: relative;
	display: block;
	overflow: hidden;
	aspect-ratio: var(--zfg-ratio, 1 / 1);
	background: #e9e9e9;
	border-radius: 4px;
	cursor: zoom-in;
}

/*
 * Bij lange albums hoeft de browser buiten beeld niets te renderen.
 * De intrinsieke maat voorkomt dat de scrollbalk gaat springen.
 */
.zfg-gallery:not(.zfg-gallery--masonry) .zfg-item {
	content-visibility: auto;
	contain-intrinsic-size: auto 300px;
}

/*
 * Masonry. Zonder JavaScript blijft het een gewoon raster; zodra JS de
 * kolommen heeft berekend, worden de items absoluut geplaatst.
 */
.zfg-gallery--masonry.is-js {
	display: block;
	position: relative;
}

.zfg-gallery--masonry.is-js .zfg-item {
	position: absolute;
	aspect-ratio: auto;
	margin: 0;
}

.zfg-item img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.25s ease, opacity 0.25s ease;
}

.zfg-item:hover img,
.zfg-item:focus-visible img {
	transform: scale(1.04);
}

.zfg-item:focus-visible {
	outline: 3px solid #0b5fff;
	outline-offset: 2px;
}

/* Knop om de rest bij te laden */

.zfg-more {
	margin: 1.5rem 0;
	text-align: center;
}

.zfg-more-btn {
	padding: 12px 24px;
	border: 1px solid currentColor;
	border-radius: 999px;
	background: transparent;
	color: inherit;
	font: inherit;
	font-size: 15px;
	cursor: pointer;
	transition: opacity 0.15s ease;
}

.zfg-more-btn:hover {
	opacity: 0.7;
}

.zfg-more-btn[disabled] {
	opacity: 0.5;
	cursor: default;
}

/* Albumoverzicht */

.zfg-albums {
	--zfg-cols: 4;
	--zfg-gap: 20px;
	grid-template-columns: repeat(var(--zfg-cols), minmax(0, 1fr));
}

@media (max-width: 1100px) {
	.zfg-albums {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

@media (max-width: 850px) {
	.zfg-albums {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

.zfg-day {
	margin: 2.5rem 0 0.25rem;
	scroll-margin-top: 100px;
}

.zfg-day:first-child {
	margin-top: 0;
}

.zfg-day-intro {
	margin: 0.25rem 0 0;
	opacity: 0.75;
}

.zfg-album-card {
	display: block;
	text-decoration: none;
	color: inherit;
}

.zfg-album-thumb {
	display: block;
	overflow: hidden;
	aspect-ratio: 3 / 2;
	background: #e9e9e9;
	border-radius: 6px;
}

.zfg-album-thumb img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.3s ease;
}

.zfg-album-card:hover .zfg-album-thumb img {
	transform: scale(1.04);
}

.zfg-album-meta {
	display: block;
	padding: 0.6rem 0 0;
}

.zfg-album-title {
	display: block;
	font-weight: 600;
	line-height: 1.3;
}

.zfg-album-count {
	display: block;
	font-size: 0.85em;
	opacity: 0.7;
}

/* Lightbox */

.zfg-lightbox {
	position: fixed;
	inset: 0;
	z-index: 999999;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(12, 12, 14, 0.94);
	opacity: 0;
	transition: opacity 0.2s ease;
	touch-action: pan-y;
}

.zfg-lightbox.is-open {
	opacity: 1;
}

/*
 * Belangrijk: het hidden-attribuut krijgt display:none van de browser, maar
 * die regel verliest van de display:flex hierboven. Zonder deze regel blijft
 * een gesloten lightbox onzichtbaar over de pagina liggen en vangt hij alle
 * kliks op.
 */
.zfg-lightbox[hidden] {
	display: none !important;
}

/* Tijdens het uitfaden geen kliks meer opvangen. */
.zfg-lightbox:not(.is-open) {
	pointer-events: none;
}

.zfg-lightbox__stage {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 100%;
	padding: 56px 16px 72px;
	box-sizing: border-box;
}

.zfg-lightbox__img {
	max-width: 100%;
	max-height: 100%;
	object-fit: contain;
	border-radius: 2px;
	box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
	opacity: 0;
	transition: opacity 0.2s ease;
}

.zfg-lightbox__img.is-loaded {
	opacity: 1;
}

.zfg-lightbox__spinner {
	position: absolute;
	width: 34px;
	height: 34px;
	border: 3px solid rgba(255, 255, 255, 0.25);
	border-top-color: #fff;
	border-radius: 50%;
	animation: zfg-spin 0.8s linear infinite;
	opacity: 0;
	transition: opacity 0.15s ease;
	pointer-events: none;
}

.zfg-lightbox.is-loading .zfg-lightbox__spinner {
	opacity: 1;
}

@keyframes zfg-spin {
	to {
		transform: rotate(360deg);
	}
}

.zfg-lightbox__progress {
	position: absolute;
	top: 0;
	left: 0;
	z-index: 2;
	width: 0;
	height: 2px;
	background: #fff;
	opacity: 0.75;
}

/* Bediening verdwijnt bij stilstand, zodat de foto vrij in beeld staat. */
.zfg-lightbox.is-idle {
	cursor: none;
}

.zfg-lightbox.is-idle .zfg-lightbox__bar,
.zfg-lightbox.is-idle .zfg-nav,
.zfg-lightbox.is-idle .zfg-lightbox__progress {
	opacity: 0;
	pointer-events: none;
}

.zfg-lightbox__bar {
	position: absolute;
	left: 0;
	right: 0;
	transition: opacity 0.25s ease;
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 10px 14px;
	color: #fff;
	font-size: 14px;
	box-sizing: border-box;
}

.zfg-lightbox__bar--top {
	top: 0;
	justify-content: space-between;
	background: linear-gradient(rgba(0, 0, 0, 0.55), transparent);
}

.zfg-lightbox__bar--bottom {
	bottom: 0;
	justify-content: center;
	background: linear-gradient(transparent, rgba(0, 0, 0, 0.55));
}

.zfg-lightbox__counter {
	font-variant-numeric: tabular-nums;
	opacity: 0.85;
}

.zfg-btn {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 9px 14px;
	border: 0;
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.14);
	color: #fff;
	font: inherit;
	font-size: 14px;
	line-height: 1;
	text-decoration: none;
	cursor: pointer;
	transition: background 0.15s ease;
	-webkit-tap-highlight-color: transparent;
}

.zfg-btn:hover,
.zfg-btn:focus-visible {
	background: rgba(255, 255, 255, 0.28);
	color: #fff;
}

.zfg-btn--download {
	background: #fff;
	color: #111;
	font-weight: 600;
}

.zfg-btn--download:hover,
.zfg-btn--download:focus-visible {
	background: #eaeaea;
	color: #111;
}

.zfg-nav {
	position: absolute;
	transition: opacity 0.25s ease, background 0.15s ease;
	top: 50%;
	transform: translateY(-50%);
	width: 46px;
	height: 46px;
	padding: 0;
	justify-content: center;
	font-size: 20px;
}

.zfg-nav--prev {
	left: 12px;
}

.zfg-nav--next {
	right: 12px;
}

.zfg-nav[hidden] {
	display: none;
}

@media (max-width: 600px) {
	.zfg-gallery {
		--zfg-min: 110px;
		--zfg-gap: 5px;
	}

	/* Albumoverzicht wordt een lijst: miniatuur links, tekst rechts. */
	.zfg-albums {
		grid-template-columns: 1fr;
		--zfg-gap: 12px;
	}

	.zfg-album-card {
		display: grid;
		grid-template-columns: 1fr 3fr;
		gap: 12px;
		align-items: center;
	}

	.zfg-album-thumb {
		aspect-ratio: 1 / 1;
	}

	.zfg-album-meta {
		padding: 0;
	}

	.zfg-lightbox__stage {
		padding: 52px 6px 68px;
	}

	.zfg-nav {
		width: 40px;
		height: 40px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.zfg-item img,
	.zfg-album-thumb img,
	.zfg-lightbox,
	.zfg-lightbox__img {
		transition: none;
	}

	.zfg-lightbox__spinner {
		animation-duration: 2s;
	}
}

body.zfg-lightbox-open {
	overflow: hidden;
}