/**
 * Gallery variation: Comparison Pairs
 *
 * Side-by-side image pairs (consecutive items grouped). Optional
 * synced hover crosshair via the IA view module — when the user
 * hovers one image, a crosshair appears at the same relative
 * position on its pair. Crosshair disabled under reduced-motion.
 *
 * @package PostFormatsBlockThemes
 * @since 2.1.0
 */

.wp-block-gallery.is-style-comparison-pairs.is-layout-flex {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(var(--pfbt-comparison-min, 16rem), 1fr));
	gap: var(--pfbt-comparison-gap, 0.5rem);
}

.wp-block-gallery.is-style-comparison-pairs.is-layout-flex .wp-block-image {
	position: relative;
	margin: 0;
}

.wp-block-gallery.is-style-comparison-pairs.is-layout-flex .wp-block-image img {
	display: block;
	width: 100%;
	height: auto;
}

.wp-block-gallery.is-style-comparison-pairs.is-layout-flex .wp-block-image figcaption {
	margin-block-start: var(--wp--preset--spacing--small, 0.75rem);
	margin-block-end: 0;
	margin-inline: 0;
	padding: 0;
	font-size: var(--wp--preset--font-size--small, 0.875rem);
	color: var(--pfbt-comparison-caption, var(--wp--preset--color--secondary, var(--wp--preset--color--contrast, #666666)));
	text-align: center;
}

@media (prefers-reduced-motion: no-preference) {
	.wp-block-gallery.is-style-comparison-pairs.is-layout-flex .pfbt-comparison-crosshair {
		position: absolute;
		width: 1.5rem;
		height: 1.5rem;
		border: 2px solid var(--pfbt-comparison-crosshair, var(--wp--preset--color--primary, var(--wp--preset--color--accent-1, #2271b1)));
		border-radius: 50%;
		pointer-events: none;
		transform: translate(-50%, -50%);
		opacity: 0;
		transition: opacity 100ms ease-out;
	}
	.wp-block-gallery.is-style-comparison-pairs.is-layout-flex .wp-block-image:hover .pfbt-comparison-crosshair {
		opacity: 1;
	}
}

@media print {
	.pfbt-comparison-crosshair { display: none; }
}