/**
 * SOCKAKI — Product Lightbox
 *
 * Full-viewport, paper-background image viewer for the single-product page.
 * Owns presentation only; markup is generated by SockakiProductLightbox in
 * Sockaki Site Core. Uses Sockaki design tokens; no new hex colours.
 */

.sk-product-lightbox {
	position: fixed;
	inset: 0;
	z-index: 9999;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	height: 100dvh;
	height: 100vh;
	padding: 0;
	background: var(--sk-paper);
	color: var(--sk-text);
	font-family: var(--sk-font-body);
	overscroll-behavior: contain;
	-webkit-tap-highlight-color: transparent;
}

.sk-product-lightbox[hidden] {
	display: none;
}

/* Close — always reachable, large tap target. */
.sk-product-lightbox__close {
	position: absolute;
	top: max(var(--sk-space-4), env(safe-area-inset-top));
	right: max(var(--sk-space-4), env(safe-area-inset-right));
	z-index: 3;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 48px;
	height: 48px;
	border: var(--sk-border-width-md) solid var(--sk-text);
	border-radius: var(--sk-radius-full);
	background: var(--sk-surface);
	color: var(--sk-text);
	cursor: pointer;
	padding: 0;
	box-shadow: 3px 3px 0 var(--sk-brand-aqua);
	transition: transform var(--sk-transition-fast), box-shadow var(--sk-transition-fast);
}

.sk-product-lightbox__close:hover,
.sk-product-lightbox__close:focus-visible {
	transform: translate(1px, 1px);
	box-shadow: 1px 1px 0 var(--sk-brand-aqua);
	outline: 2px solid var(--sk-extended-purple);
	outline-offset: 2px;
}

/* Stage — image is the hero. */
.sk-product-lightbox__stage {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	flex: 1 1 auto;
	width: 100%;
	min-height: 0;
	padding: calc(var(--sk-space-12) + env(safe-area-inset-top)) var(--sk-space-4) var(--sk-space-2);
}

.sk-product-lightbox__media {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 100%;
	min-height: 0;
	overflow: hidden;
	cursor: zoom-in;
	touch-action: pan-y;
}

.sk-product-lightbox--zoomed .sk-product-lightbox__media {
	cursor: zoom-out;
}

.sk-product-lightbox__image {
	max-width: 100%;
	max-height: 100%;
	width: auto;
	height: auto;
	object-fit: contain;
	object-position: center;
	transform-origin: center center;
	transition: transform var(--sk-transition);
	will-change: transform;
	-webkit-user-drag: none;
	user-select: none;
}

/* Arrows — desktop only; mobile relies on swipe + keyboard. */
.sk-product-lightbox__prev,
.sk-product-lightbox__next {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	z-index: 2;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 52px;
	height: 52px;
	border: var(--sk-border-width-md) solid var(--sk-text);
	border-radius: var(--sk-radius-full);
	background: var(--sk-surface);
	color: var(--sk-text);
	cursor: pointer;
	padding: 0;
	box-shadow: 3px 3px 0 var(--sk-brand-pink);
	transition: transform var(--sk-transition-fast), box-shadow var(--sk-transition-fast);
}

.sk-product-lightbox__prev {
	left: var(--sk-space-4);
}

.sk-product-lightbox__next {
	right: var(--sk-space-4);
}

.sk-product-lightbox__prev:hover,
.sk-product-lightbox__next:hover,
.sk-product-lightbox__prev:focus-visible,
.sk-product-lightbox__next:focus-visible {
	transform: translateY(-50%) translate(1px, 1px);
	box-shadow: 1px 1px 0 var(--sk-brand-pink);
	outline: 2px solid var(--sk-extended-purple);
	outline-offset: 2px;
}

/* Footer — counter + thumbnails. */
.sk-product-lightbox__footer {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: var(--sk-space-3);
	width: 100%;
	padding: var(--sk-space-2) var(--sk-space-4) calc(var(--sk-space-6) + env(safe-area-inset-bottom));
}

.sk-product-lightbox__counter {
	font-family: var(--sk-font-display);
	font-size: var(--sk-fs-sm);
	font-weight: var(--sk-fw-bold);
	letter-spacing: 0.08em;
	color: var(--sk-text-muted);
	border-bottom: var(--sk-border-width-lg) solid var(--sk-brand-pink);
	padding-bottom: var(--sk-space-1);
}

.sk-product-lightbox__thumbs {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: center;
	gap: var(--sk-space-2);
	max-width: 100%;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	padding: var(--sk-space-1);
	scrollbar-width: thin;
}

.sk-product-lightbox__thumb {
	display: block;
	flex: 0 0 auto;
	width: 64px;
	height: 64px;
	padding: 0;
	overflow: hidden;
	border: var(--sk-border-width-md) solid transparent;
	border-radius: var(--sk-radius-sm);
	background: var(--sk-surface);
	cursor: pointer;
	transition: border-color var(--sk-transition-fast), transform var(--sk-transition-fast);
}

.sk-product-lightbox__thumb img {
	width: 100%;
	height: 100%;
	aspect-ratio: 1 / 1;
	object-fit: cover;
	object-position: center;
	display: block;
}

.sk-product-lightbox__thumb:hover {
	border-color: var(--sk-border-strong);
}

.sk-product-lightbox__thumb--active {
	border-color: var(--sk-brand-aqua);
	box-shadow: 0 0 0 1px var(--sk-brand-aqua);
}

.sk-product-lightbox__thumb:focus-visible {
	outline: 2px solid var(--sk-extended-purple);
	outline-offset: 2px;
}

/* Single image — hide nav chrome that would otherwise be empty/pointless. */
.sk-product-lightbox--single .sk-product-lightbox__prev,
.sk-product-lightbox--single .sk-product-lightbox__next,
.sk-product-lightbox--single .sk-product-lightbox__counter,
.sk-product-lightbox--single .sk-product-lightbox__thumbs {
	display: none;
}

/* Background scroll lock. */
html.sk-lightbox-open,
html.sk-lightbox-open body {
	overflow: hidden;
	overscroll-behavior: contain;
}

@media (max-width: 767px) {
	.sk-product-lightbox__prev,
	.sk-product-lightbox__next {
		display: none;
	}

	.sk-product-lightbox__stage {
		padding-inline: var(--sk-space-3);
	}

	.sk-product-lightbox__close {
		width: 44px;
		height: 44px;
	}

	.sk-product-lightbox__thumbs {
		justify-content: flex-start;
		flex-wrap: nowrap;
	}

	.sk-product-lightbox__thumb {
		width: 56px;
		height: 56px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.sk-product-lightbox__image,
	.sk-product-lightbox__close,
	.sk-product-lightbox__prev,
	.sk-product-lightbox__next,
	.sk-product-lightbox__thumb {
		transition: none;
	}
}