/* ==========================================================================
   Egittosì — Gallery masonry, album filters & lightbox (WS-F)

   Masonry without layout shift: every tile spans a number of grid rows computed
   in PHP from the image aspect ratio (egittosi_gallery_masonry_span()), against
   rows that are exactly 1/16 of a column width (--gallery-unit, container query
   units). Tiles keep their source order left to right; heights are known before
   any image loads. Browsers without container units fall back to CSS columns.
   ========================================================================== */

.gallery {
	--gallery-cols: 2;
	--gallery-gap: var(--space-3);

	container-type: inline-size;
	position: relative;
}

.gallery__grid {
	--gallery-unit: calc((100cqi - (var(--gallery-cols) - 1) * var(--gallery-gap)) / var(--gallery-cols) / 16);

	display: grid;
	grid-template-columns: repeat(var(--gallery-cols), minmax(0, 1fr));
	grid-auto-rows: var(--gallery-unit);
	grid-auto-flow: row;
	column-gap: var(--gallery-gap);
	row-gap: 0;
	margin: 0;
	padding: 0;
	list-style: none;
	transition: opacity var(--dur-ui) var(--ease-out);
}

.gallery__grid.is-filtering {
	opacity: 0;
}

.gallery__item {
	grid-row-end: span var(--span, 21);
	min-inline-size: 0;
}

.gallery__item[hidden] {
	display: none;
}

/* Editorial layout: the second column starts lower (staggered magazine columns). */
.gallery__spacer {
	display: none;
}

.gallery--editorial .gallery__spacer {
	display: block;
	grid-column: 2;
	grid-row: 1 / span 5;
}

.gallery__link {
	position: relative;
	display: block;
	block-size: calc(100% - var(--gallery-gap));
	overflow: hidden;
	border-radius: var(--radius-sm);
	background: var(--c-sand-100);
	color: var(--c-white);
	text-decoration: none;
}

.gallery__link:focus-visible {
	outline: 2px solid var(--c-focus);
	outline-offset: 3px;
}

.gallery__figure {
	position: relative;
	block-size: 100%;
	margin: 0;
}

.gallery__img,
.gallery__figure .img-fallback {
	display: block;
	inline-size: 100%;
	block-size: 100%;
	object-fit: cover;
	transform-origin: 50% 55%;
	transition: transform calc(var(--dur-hover) * 1.4) var(--ease-out);
}

.gallery__caption {
	position: absolute;
	inset-inline: 0;
	inset-block-end: 0;
	z-index: 1;
	display: flex;
	flex-direction: column;
	gap: 2px;
	padding: var(--space-7) var(--space-4) var(--space-4);
	background: linear-gradient(to top, var(--c-nile-950), transparent);
	color: var(--c-white);
	font-size: var(--fs-xs);
	line-height: 1.4;
	opacity: 0;
	transform: translateY(0.5rem);
	transition: opacity var(--dur-ui) var(--ease-out), transform var(--dur-ui) var(--ease-out);
}

.gallery__album {
	color: var(--c-gold-300);
	font-size: var(--fs-eyebrow);
	font-weight: var(--fw-medium);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
}

.gallery__caption-text {
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
	line-clamp: 2;
	overflow: hidden;
}

.gallery__zoom {
	position: absolute;
	inset-block-start: var(--space-3);
	inset-inline-end: var(--space-3);
	z-index: 1;
	display: grid;
	place-items: center;
	inline-size: 2.5rem;
	block-size: 2.5rem;
	border-radius: 50%;
	background: var(--c-ivory);
	color: var(--c-nile-900);
	opacity: 0;
	transform: scale(0.8);
	transition: opacity var(--dur-ui) var(--ease-out), transform var(--dur-ui) var(--ease-out);
}

.gallery__zoom svg {
	inline-size: 18px;
	block-size: 18px;
}

/* Touch screens: captions always visible (no hover to discover them). */
@media (hover: none) {
	.gallery__caption {
		opacity: 1;
		transform: none;
	}
}

@media (hover: hover) and (pointer: fine) {
	.gallery__link:hover .gallery__caption,
	.gallery__link:focus-visible .gallery__caption {
		opacity: 1;
		transform: none;
	}

	.gallery__link:hover .gallery__zoom,
	.gallery__link:focus-visible .gallery__zoom {
		opacity: 1;
		transform: none;
	}
}

@media (hover: hover) and (pointer: fine) and (prefers-reduced-motion: no-preference) {
	.gallery__link:hover .gallery__img {
		transform: scale(1.05) translateY(-1%);
	}
}

@media (min-width: 768px) {
	.gallery {
		--gallery-cols: 3;
		--gallery-gap: var(--space-5);
	}

	.gallery--editorial .gallery__spacer {
		grid-row: 1 / span 8;
	}
}

@media (min-width: 1280px) {
	.gallery--cols-4 {
		--gallery-cols: 4;
	}
}

/* Fallback: no container query units → balanced CSS columns (still no shift). */
@supports not (width: 1cqi) {
	.gallery__grid {
		display: block;
		columns: var(--gallery-cols);
		column-gap: var(--gallery-gap);
	}

	.gallery__item {
		margin-block-end: var(--gallery-gap);
		break-inside: avoid;
	}

	.gallery__spacer,
	.gallery--editorial .gallery__spacer {
		display: none;
	}

	.gallery__link {
		block-size: auto;
	}

	.gallery__img {
		block-size: auto;
		aspect-ratio: var(--ar, 4 / 5);
	}
}

/* ---- Strip layout: horizontal rail at a fixed height ------------------- */

.gallery--strip .gallery__grid {
	display: flex;
	gap: var(--gallery-gap);
	padding-block-end: var(--space-3);
	overflow-x: auto;
	overscroll-behavior-x: contain;
	scroll-snap-type: x proximity;
	scrollbar-width: thin;
	scrollbar-color: var(--c-gold-400) transparent;
}

.gallery--strip .gallery__grid:focus-visible {
	outline: 2px solid var(--c-focus);
	outline-offset: 4px;
}

.gallery--strip .gallery__item {
	flex: 0 0 auto;
	block-size: clamp(15rem, 36vw, 27rem);
	aspect-ratio: var(--ar, 4 / 5);
	max-inline-size: 85vw;
	margin: 0;
	scroll-snap-align: start;
}

.gallery--strip .gallery__link {
	block-size: 100%;
}

/* ---- Album filters (Gallery page) -------------------------------------- */

.gallery-page .editorial-intro {
	margin-block-end: var(--space-8);
}

.gallery-filters {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--space-3) var(--space-5);
	margin-block-end: clamp(var(--space-6), 1rem + 3vw, var(--space-8));
	padding-block-end: var(--space-5);
	border-block-end: 1px solid var(--c-border);
}

.gallery-filters[hidden] {
	display: none;
}

.gallery-filters__label {
	margin: 0;
	color: var(--c-text-muted);
	font-size: var(--fs-eyebrow);
	font-weight: var(--fw-medium);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
}

.gallery-filters__list {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
}

.gallery-filters__btn {
	display: inline-flex;
	align-items: center;
	gap: var(--space-2);
	min-block-size: 2.75rem;
	padding: var(--space-2) var(--space-4);
	border: 1px solid var(--c-border-strong);
	border-radius: var(--radius-pill);
	background: transparent;
	color: var(--c-heading);
	font-family: var(--font-sans);
	font-size: var(--fs-small);
	font-weight: var(--fw-medium);
	cursor: pointer;
	transition: border-color var(--dur-ui) var(--ease-out), background-color var(--dur-ui) var(--ease-out), color var(--dur-ui) var(--ease-out);
}

.gallery-filters__count {
	color: var(--c-text-muted);
	font-size: var(--fs-xs);
	font-variant-numeric: tabular-nums;
}

.gallery-filters__btn:hover {
	border-color: var(--c-gold-500);
}

.gallery-filters__btn:focus-visible {
	outline: 2px solid var(--c-focus);
	outline-offset: 2px;
}

.gallery-filters__btn[aria-pressed="true"] {
	border-color: var(--c-nile-900);
	background: var(--c-nile-900);
	color: var(--c-ivory);
}

.gallery-filters__btn[aria-pressed="true"] .gallery-filters__count {
	color: var(--c-gold-300);
}

/* ==========================================================================
   Lightbox — modal <dialog>, crossfade, keyboard / swipe (gallery.js)
   ========================================================================== */

.lightbox {
	position: fixed;
	inset: 0;
	z-index: var(--z-dialog);
	inline-size: 100%;
	max-inline-size: none;
	block-size: 100%;
	max-block-size: none;
	margin: 0;
	padding: 0;
	border: 0;
	background: var(--c-nile-950);
	color: var(--c-ivory);
	overscroll-behavior: contain;
}

.lightbox:not([open]) {
	display: none;
}

.lightbox::backdrop {
	background: var(--c-nile-950);
}

.lightbox[open] {
	animation: lightbox-in var(--dur-ui) var(--ease-out);
}

@keyframes lightbox-in {
	from {
		opacity: 0;
	}

	to {
		opacity: 1;
	}
}

.lightbox__inner {
	display: grid;
	grid-template-rows: auto minmax(0, 1fr);
	block-size: 100%;
	padding: var(--space-3) var(--space-3) var(--space-4);
}

.lightbox__bar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-4);
	padding-inline-start: var(--space-2);
}

.lightbox__counter {
	display: inline-flex;
	gap: var(--space-2);
	margin: 0;
	color: var(--c-nile-100);
	font-family: var(--font-display);
	font-size: 1.625rem;
	font-variant-numeric: lining-nums tabular-nums;
}

.lightbox__counter-sep {
	color: var(--c-gold-400);
}

.lightbox__close,
.lightbox__nav {
	display: grid;
	place-items: center;
	inline-size: 3rem;
	block-size: 3rem;
	padding: 0;
	border: 1px solid var(--c-nile-700);
	border-radius: 50%;
	background: var(--c-nile-950);
	color: var(--c-ivory);
	cursor: pointer;
	transition: border-color var(--dur-ui) var(--ease-out), background-color var(--dur-ui) var(--ease-out), color var(--dur-ui) var(--ease-out);
}

.lightbox__close svg,
.lightbox__nav svg {
	inline-size: 20px;
	block-size: 20px;
}

.lightbox__close:hover,
.lightbox__nav:hover {
	border-color: var(--c-gold-400);
	background: var(--c-gold-400);
	color: var(--c-nile-950);
}

.lightbox__close:focus-visible,
.lightbox__nav:focus-visible {
	outline: 2px solid var(--c-gold-300);
	outline-offset: 3px;
}

.lightbox__nav[hidden] {
	display: none;
}

.lightbox__stage {
	position: relative;
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	align-items: center;
	min-block-size: 0;
	touch-action: pan-y pinch-zoom;
}

.lightbox__nav {
	position: absolute;
	inset-block-end: 0;
	z-index: 2;
}

.lightbox__nav--prev {
	inset-inline-start: var(--space-2);
}

.lightbox__nav--next {
	inset-inline-end: var(--space-2);
}

.lightbox__figure {
	display: grid;
	grid-template-rows: minmax(0, 1fr) auto;
	gap: var(--space-3);
	block-size: 100%;
	min-block-size: 0;
	margin: 0;
	padding-block-end: 3.75rem;
}

.lightbox__frame {
	position: relative;
	display: grid;
	min-block-size: 0;
}

.lightbox__frame.is-loading::after {
	content: "";
	position: absolute;
	inset-block-start: 50%;
	inset-inline-start: 50%;
	inline-size: 2.25rem;
	block-size: 2.25rem;
	margin: -1.125rem 0 0 -1.125rem;
	border: 1px solid var(--c-nile-700);
	border-block-start-color: var(--c-gold-400);
	border-radius: 50%;
	animation: lightbox-spin 900ms linear infinite;
}

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

.lightbox__img {
	grid-area: 1 / 1;
	place-self: center;
	max-inline-size: 100%;
	max-block-size: 100%;
	inline-size: auto;
	block-size: auto;
	object-fit: contain;
	opacity: 0;
	transform: scale(1.015);
	transition: opacity var(--dur-hover) var(--ease-out), transform calc(var(--dur-hover) * 1.4) var(--ease-out);
	user-select: none;
	-webkit-user-drag: none;
}

.lightbox__img.is-visible {
	opacity: 1;
	transform: none;
}

.lightbox__error {
	grid-area: 1 / 1;
	place-self: center;
	margin: 0;
	color: var(--c-nile-100);
	font-size: var(--fs-small);
}

.lightbox__caption {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: center;
	gap: var(--space-1) var(--space-3);
	min-block-size: 1.5rem;
	text-align: center;
}

.lightbox__caption.is-empty {
	visibility: hidden;
}

.lightbox__album {
	color: var(--c-gold-300);
	font-size: var(--fs-eyebrow);
	font-weight: var(--fw-medium);
	letter-spacing: var(--tracking-eyebrow);
	text-transform: uppercase;
}

.lightbox__text {
	color: var(--c-ivory);
	font-size: var(--fs-small);
}

.lightbox__credit {
	color: var(--c-nile-300);
	font-size: var(--fs-xs);
}

.lightbox__album:empty,
.lightbox__text:empty,
.lightbox__credit:empty {
	display: none;
}

@media (min-width: 768px) {
	.lightbox__inner {
		padding: var(--space-4) var(--space-5) var(--space-5);
	}

	.lightbox__stage {
		grid-template-columns: 3.5rem minmax(0, 1fr) 3.5rem;
		column-gap: var(--space-4);
	}

	.lightbox__nav {
		position: static;
		align-self: center;
	}

	.lightbox__nav--next {
		grid-column: 3;
	}

	.lightbox__figure {
		grid-column: 2;
		grid-row: 1;
		padding-block-end: 0;
	}
}

@media (prefers-reduced-motion: reduce) {
	.lightbox[open] {
		animation: none;
	}

	.lightbox__img {
		transform: none;
	}

	.lightbox__frame.is-loading::after {
		animation-duration: 2400ms;
	}
}