/**
 * Visionneuse (lightbox) des galeries Gescorp.
 * Fichier autonome enqueue par includes/gallery-lightbox.php.
 */

/* Repère cliquable sur les images de galerie. */
[data-gesco-lightbox] figure[data-index] {
	cursor: zoom-in;
}

.gesco-lb {
	position: fixed;
	inset: 0;
	z-index: 100000;
	display: none;
	align-items: center;
	justify-content: center;
}
.gesco-lb.is-open {
	display: flex;
}
.gesco-lb__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(20, 28, 26, 0.93);
}

/* Animation d'ouverture : fondu du fond + zoom léger du visuel. */
.gesco-lb.is-open .gesco-lb__backdrop {
	animation: gesco-lb-fade 0.22s ease-out both;
}
.gesco-lb.is-open .gesco-lb__stage {
	animation: gesco-lb-zoom 0.28s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
.gesco-lb.is-open .gesco-lb__close,
.gesco-lb.is-open .gesco-lb__nav,
.gesco-lb.is-open .gesco-lb__count {
	animation: gesco-lb-fade 0.35s ease-out both;
}
@keyframes gesco-lb-fade {
	from { opacity: 0; }
	to { opacity: 1; }
}
@keyframes gesco-lb-zoom {
	from { opacity: 0; transform: scale(0.92); }
	to { opacity: 1; transform: none; }
}

/* Transition à chaque changement d'image (prev/next). */
.gesco-lb__img--in {
	animation: gesco-lb-swap 0.25s ease-out both;
}
@keyframes gesco-lb-swap {
	from { opacity: 0; transform: scale(0.98); }
	to { opacity: 1; transform: none; }
}
@media ( prefers-reduced-motion: reduce ) {
	.gesco-lb.is-open .gesco-lb__backdrop,
	.gesco-lb.is-open .gesco-lb__stage,
	.gesco-lb.is-open .gesco-lb__close,
	.gesco-lb.is-open .gesco-lb__nav,
	.gesco-lb.is-open .gesco-lb__count,
	.gesco-lb__img--in {
		animation: none;
	}
}
.gesco-lb__stage {
	position: relative;
	z-index: 1;
	margin: 0;
	max-width: 92vw;
	max-height: 88vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 10px;
}
.gesco-lb__img {
	max-width: 92vw;
	max-height: 82vh;
	object-fit: contain;
	border-radius: 4px;
	box-shadow: 0 12px 48px rgba(0, 0, 0, 0.55);
	background: #141c1a;
}
.gesco-lb__cap {
	color: #e7e5e0;
	font-size: 14px;
	text-align: center;
	max-width: 80vw;
}
.gesco-lb__spinner {
	position: absolute;
	top: 50%;
	left: 50%;
	width: 40px;
	height: 40px;
	margin: -20px 0 0 -20px;
	border-radius: 50%;
	border: 3px solid rgba( 255, 255, 255, 0.25 );
	border-top-color: #fff;
	display: none;
	z-index: 1;
	pointer-events: none;
	animation: gesco-lb-spin 0.8s linear infinite;
}
.gesco-lb.is-loading .gesco-lb__spinner {
	display: block;
}
@keyframes gesco-lb-spin {
	to { transform: rotate( 360deg ); }
}
.gesco-lb__count {
	position: absolute;
	top: 20px;
	left: 50%;
	transform: translateX(-50%);
	z-index: 2;
	color: #e7e5e0;
	font-size: 13px;
	letter-spacing: 0.05em;
}
.gesco-lb__close {
	position: absolute;
	top: 12px;
	right: 18px;
	z-index: 2;
	background: none;
	border: 0;
	color: #fff;
	font-size: 36px;
	line-height: 1;
	cursor: pointer;
	opacity: 0.85;
}
.gesco-lb__close:hover {
	opacity: 1;
}
.gesco-lb__nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	z-index: 2;
	width: 52px;
	height: 52px;
	border: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.12);
	color: #fff;
	font-size: 32px;
	line-height: 1;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: background 0.2s ease;
}
.gesco-lb__nav:hover {
	background: rgba(255, 255, 255, 0.26);
}
.gesco-lb__prev {
	left: 18px;
}
.gesco-lb__next {
	right: 18px;
}
@media ( max-width: 560px ) {
	.gesco-lb__nav {
		width: 42px;
		height: 42px;
		font-size: 26px;
	}
	.gesco-lb__prev {
		left: 6px;
	}
	.gesco-lb__next {
		right: 6px;
	}
}