/**
 * Car photo gallery and full-screen viewer.
 * Phones: edge-to-edge 4:5 stage with rounded lower corners, like an app
 * detail screen. Desktop: rounded square stage beside the information card.
 * The stage is lit like a showroom: a soft spotlight from above and a floor
 * glow below. Photos are shown whole (contain) so posters and real
 * photographs of any ratio are never cropped.
 */

.car-gallery {
	position: relative;
	min-width: 0;
	margin-inline: calc(-1 * var(--nscb-gutter));
}

/* Capped on short phones so the title and price still reach the first screen. */
.car-gallery__stage {
	position: relative;
	aspect-ratio: 4 / 5;
	max-height: 58svh;
	width: 100%;
	overflow: hidden;
	border-bottom: 1px solid var(--nscb-edge);
	border-radius: 0 0 var(--nscb-radius-xl) var(--nscb-radius-xl);
	background:
		radial-gradient(55% 40% at 50% 100%, color-mix(in srgb, var(--nscb-color-highlight) 9%, transparent), transparent 70%),
		radial-gradient(80% 60% at 50% 0%, color-mix(in srgb, var(--nscb-color-accent-secondary) 10%, transparent), transparent 70%),
		radial-gradient(90% 70% at 50% 45%, var(--nscb-color-surface), var(--nscb-color-bg-secondary) 75%);
	box-shadow: 0 24px 50px -30px rgba(0, 0, 0, 0.9);
}

.car-gallery__track {
	position: relative;
	display: flex;
	height: 100%;
	margin: 0;
	padding: 0;
	overflow-x: auto;
	overscroll-behavior-x: contain;
	list-style: none;
	scroll-snap-type: x mandatory;
	scrollbar-width: none;
	-webkit-overflow-scrolling: touch;
}

.car-gallery__track::-webkit-scrollbar {
	display: none;
}

.car-gallery__slide {
	flex: 0 0 100%;
	height: 100%;
	scroll-snap-align: center;
	scroll-snap-stop: always;
}

.car-gallery__open {
	display: block;
	width: 100%;
	height: 100%;
	cursor: zoom-in;
}

.car-gallery__img {
	width: 100%;
	height: 100%;
	object-fit: contain;
}

/* Previous / next: pointer-sized screens only; phones swipe. */
.car-gallery__nav {
	position: absolute;
	top: 50%;
	z-index: 2;
	display: none;
	align-items: center;
	justify-content: center;
	width: 3rem;
	height: 3rem;
	padding: 0;
	border: 1px solid var(--nscb-edge-strong);
	border-radius: 50%;
	background-color: var(--nscb-glass);
	box-shadow: var(--nscb-edge-light);
	color: var(--nscb-color-text);
	-webkit-backdrop-filter: blur(10px);
	backdrop-filter: blur(10px);
	transform: translateY(-50%);
	transition:
		opacity var(--nscb-duration-fast) var(--nscb-ease-standard),
		background-color var(--nscb-duration-fast) var(--nscb-ease-standard),
		color var(--nscb-duration-fast) var(--nscb-ease-standard),
		border-color var(--nscb-duration-fast) var(--nscb-ease-standard);
}

.car-gallery__nav--prev {
	left: var(--nscb-space-4);
}

.car-gallery__nav--next {
	right: var(--nscb-space-4);
}

.car-gallery__nav:hover:not(:disabled),
.car-gallery__expand:hover {
	border-color: transparent;
	background-color: var(--nscb-color-highlight);
	color: var(--nscb-color-highlight-text);
}

.car-gallery__nav:active:not(:disabled) {
	transform: translateY(-50%) scale(0.94);
}

.car-gallery__expand:active {
	transform: scale(0.94);
}

.car-gallery__nav:disabled {
	opacity: 0;
	pointer-events: none;
}

.car-gallery__nav .nscb-icon,
.car-gallery__expand .nscb-icon {
	width: 1.125rem;
	height: 1.125rem;
}

.car-gallery__bar {
	position: absolute;
	right: var(--nscb-space-4);
	bottom: var(--nscb-space-4);
	left: var(--nscb-space-4);
	z-index: 2;
	display: flex;
	align-items: center;
	justify-content: space-between;
	pointer-events: none;
}

.car-gallery__counter,
.car-gallery__expand {
	pointer-events: auto;
}

.car-gallery__counter {
	padding: 0.45rem 0.85rem;
	border: 1px solid var(--nscb-edge);
	border-radius: var(--nscb-radius-pill);
	background-color: var(--nscb-glass);
	-webkit-backdrop-filter: blur(10px);
	backdrop-filter: blur(10px);
	color: var(--nscb-color-text);
	font-size: var(--nscb-text-xs);
	font-weight: 600;
	font-variant-numeric: tabular-nums;
	letter-spacing: 0.04em;
}

.car-gallery__expand {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 3rem;
	height: 3rem;
	margin-inline-start: auto;
	padding: 0;
	border: 1px solid var(--nscb-edge-strong);
	border-radius: 50%;
	background-color: var(--nscb-glass);
	box-shadow: var(--nscb-edge-light);
	color: var(--nscb-color-text);
	-webkit-backdrop-filter: blur(10px);
	backdrop-filter: blur(10px);
	transition:
		background-color var(--nscb-duration-fast) var(--nscb-ease-standard),
		color var(--nscb-duration-fast) var(--nscb-ease-standard),
		border-color var(--nscb-duration-fast) var(--nscb-ease-standard),
		transform var(--nscb-duration-fast) var(--nscb-ease-standard);
}

/* Thumbnails */
/* The strip is filled by the script after the main photo loads; its final
   height is reserved from the first paint so nothing below it shifts. */
.car-gallery__thumbs {
	--nscb-thumb-size: 3.5rem;
	--nscb-thumb-pad-top: var(--nscb-space-3);
	display: flex;
	gap: var(--nscb-space-2);
	min-height: calc(var(--nscb-thumb-size) + var(--nscb-thumb-pad-top) + var(--nscb-space-1));
	margin: 0;
	padding: var(--nscb-thumb-pad-top) var(--nscb-gutter) var(--nscb-space-1);
	overflow-x: auto;
	list-style: none;
	scroll-padding-inline: var(--nscb-gutter);
	scrollbar-width: none;
}

/* Without JavaScript there are no thumbnails, so reserve nothing. */
.no-js .car-gallery__thumbs {
	display: none;
}

.car-gallery__thumbs::-webkit-scrollbar {
	display: none;
}

.car-gallery__thumbs li {
	flex: none;
}

.car-gallery__thumb {
	display: block;
	width: var(--nscb-thumb-size);
	height: var(--nscb-thumb-size);
	padding: 0;
	overflow: hidden;
	border: 1px solid var(--nscb-edge);
	border-radius: var(--nscb-radius-md);
	background-color: var(--nscb-color-surface);
	opacity: 0.5;
	transition:
		opacity var(--nscb-duration-fast) var(--nscb-ease-standard),
		border-color var(--nscb-duration-fast) var(--nscb-ease-standard),
		transform var(--nscb-duration-base) var(--nscb-ease-out);
}

.car-gallery__thumb img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.car-gallery__thumb:hover,
.car-gallery__thumb[aria-current="true"] {
	opacity: 1;
}

/* Selected photo: a highlight ring with a dark gap, like a selected chip. */
.car-gallery__thumb[aria-current="true"] {
	border-color: var(--nscb-color-bg);
	box-shadow: 0 0 0 2px var(--nscb-color-highlight);
}

.car-gallery__thumb:hover:not([aria-current="true"]) {
	transform: translateY(-2px);
}

/* Without JavaScript thumbnails/buttons stay hidden (hidden attribute). */

/* No photos */
.car-gallery--empty .car-gallery__stage,
.car-gallery__empty {
	display: grid;
	place-items: center;
	aspect-ratio: 4 / 5;
	width: 100%;
	border-radius: 0 0 var(--nscb-radius-xl) var(--nscb-radius-xl);
	color: var(--nscb-color-text-secondary);
	background:
		radial-gradient(90% 70% at 50% 45%, var(--nscb-color-surface), var(--nscb-color-bg-secondary) 75%);
}

.car-gallery__empty .nscb-icon {
	width: 2.5rem;
	height: 2.5rem;
	opacity: 0.5;
}

/* Tablets: a wider stage so the title and price stay on the first screen. */
@media (min-width: 48rem) and (max-width: 63.99rem) {
	.car-gallery__stage,
	.car-gallery--empty .car-gallery__stage,
	.car-gallery__empty {
		aspect-ratio: 4 / 3;
	}
}

@media (min-width: 48rem) {
	.car-gallery__nav {
		display: inline-flex;
	}

	.car-gallery__nav[hidden] {
		display: none;
	}

	.car-gallery__thumbs {
		--nscb-thumb-size: 4.5rem;
	}
}

@media (min-width: 64rem) {
	.car-gallery {
		margin-inline: 0;
	}

	.car-gallery__stage {
		max-height: none;
	}

	.car-gallery__stage,
	.car-gallery--empty .car-gallery__stage,
	.car-gallery__empty {
		aspect-ratio: 1;
		border: 1px solid var(--nscb-edge);
		border-radius: var(--nscb-radius-2xl);
	}

	.car-gallery__bar {
		right: var(--nscb-space-5);
		bottom: var(--nscb-space-5);
		left: var(--nscb-space-5);
	}

	.car-gallery__thumbs {
		--nscb-thumb-pad-top: var(--nscb-space-4);
		padding-inline: 0;
		scroll-padding-inline: 0;
	}
}

/* ---------- Full-screen viewer (<dialog>) ---------- */

.car-viewer {
	width: 100vw;
	max-width: none;
	height: 100vh;
	height: 100dvh;
	max-height: none;
	margin: 0;
	padding: 0;
	border: 0;
	background-color: var(--nscb-color-bg);
	color: var(--nscb-color-text);
	overflow: hidden;
}

.car-viewer::backdrop {
	background-color: rgba(0, 0, 0, 0.85);
}

.car-viewer[open] {
	animation: nscb-viewer-in var(--nscb-duration-base) var(--nscb-ease-out);
}

.car-viewer__inner {
	position: relative;
	display: grid;
	width: 100%;
	height: 100%;
	place-items: center;
	padding: max(4rem, env(safe-area-inset-top)) var(--nscb-space-3) max(var(--nscb-space-6), env(safe-area-inset-bottom));
}

/* Horizontal swipes go to the script (photo change); pinch-zoom stays native. */
.car-viewer__figure {
	display: grid;
	width: 100%;
	height: 100%;
	place-items: center;
	margin: 0;
	touch-action: pinch-zoom;
}

/* Explicit viewport limits: percentage heights don't resolve inside the grid. */
.car-viewer__img {
	width: auto;
	height: auto;
	max-width: 100%;
	max-height: calc(100vh - 7rem);
	max-height: calc(100dvh - 7rem);
	object-fit: contain;
	user-select: none;
	-webkit-user-drag: none;
}

.car-viewer__counter {
	position: absolute;
	top: max(var(--nscb-space-5), env(safe-area-inset-top));
	left: var(--nscb-space-5);
	color: var(--nscb-color-text-secondary);
	font-size: var(--nscb-text-sm);
	font-weight: 600;
	font-variant-numeric: tabular-nums;
}

.car-viewer__close,
.car-viewer__nav {
	position: absolute;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 3rem;
	height: 3rem;
	padding: 0;
	border: 1px solid var(--nscb-edge-strong);
	border-radius: 50%;
	background-color: var(--nscb-glass);
	color: var(--nscb-color-text);
	transition: background-color var(--nscb-duration-fast) var(--nscb-ease-standard), color var(--nscb-duration-fast) var(--nscb-ease-standard);
}

.car-viewer__close:hover,
.car-viewer__nav:hover:not(:disabled) {
	background-color: var(--nscb-color-highlight);
	color: var(--nscb-color-highlight-text);
}

.car-viewer__close {
	top: max(var(--nscb-space-3), env(safe-area-inset-top));
	right: var(--nscb-space-3);
}

.car-viewer__nav {
	top: 50%;
	transform: translateY(-50%);
}

.car-viewer__nav--prev {
	left: var(--nscb-space-3);
}

.car-viewer__nav--next {
	right: var(--nscb-space-3);
}

.car-viewer__nav:disabled,
.car-viewer--single .car-viewer__nav,
.car-viewer--single .car-viewer__counter {
	visibility: hidden;
}

.car-viewer .nscb-icon {
	width: 1.25rem;
	height: 1.25rem;
}

html.nscb-viewer-open {
	overflow: hidden;
}

@keyframes nscb-viewer-in {
	from {
		opacity: 0;
	}
}

@media (min-width: 64rem) {
	.car-viewer__inner {
		padding: var(--nscb-space-8) var(--nscb-space-9);
	}

	.car-viewer__img {
		max-height: calc(100vh - 2 * var(--nscb-space-8));
		max-height: calc(100dvh - 2 * var(--nscb-space-8));
	}

	.car-viewer__nav--prev {
		left: var(--nscb-space-6);
	}

	.car-viewer__nav--next {
		right: var(--nscb-space-6);
	}

	.car-viewer__close {
		top: var(--nscb-space-5);
		right: var(--nscb-space-6);
	}
}

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