/**
 * Variant CSS: before-after--quad-stacked-pair-cards
 * Layer 2 — Path B before-after role (before-after count-4 expansion 2026-06-10).
 * A 2x2 grid of framed cards — exactly FOUR transformations. Each card =
 * a numbered head (badge + bound title) over a VERTICAL pair: the "Przed" frame
 * stacked ABOVE the "After" frame, each carrying a corner tag.
 * Built on a CSS grid (columnCount:2) so the four cards never clip.
 * Distinct from quad-grid-cards (HORIZONTAL split with a centre seam inside the
 * card), seam-quad-board (one unified crosshair board) and compact-quartet-columns
 * (four slim un-framed columns in a single row): here each case is a standalone
 * card with a top-over-bottom before/after stack.
 */

body.aibt-universal .universal-before-after--quad-stacked-pair-cards {
	background: var(--background-alt);
	color: var(--text-primary);
}

/* Intro — centred block, A8-safe. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__intro {
	margin-bottom: var(--space-xl);
	text-align: center;
}

body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__intro > * {
	margin-inline: auto !important;
}

body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__kicker {
	font-family: var(--font-body) !important;
	font-size: var(--text-xs) !important;
	font-weight: 600 !important;
	letter-spacing: var(--tracking-widest) !important;
	text-transform: uppercase !important;
	color: var(--accent) !important;
	margin: 0 0 var(--space-sm) 0 !important;
}

body.aibt-universal .universal-before-after--quad-stacked-pair-cards h2.universal-before-after__headline,
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__headline {
	font-family: var(--font-display) !important;
	color: var(--text-primary) !important;
	margin: 0 !important;
}

/* Grid — two equal columns via CSS grid; the WP grid layout already emits the
   2-col track, this just guarantees equal columns + min-width:0 children. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__grid {
	grid-template-columns: repeat(2, minmax(0, 1fr));
	align-items: stretch;
}

/* Card — bordered container holding the head + vertical pair. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__card {
	display: flex;
	flex-direction: column;
	gap: var(--space-sm);
	padding: var(--space-sm) !important;
	background: var(--background, #fff);
	border: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
	border-radius: var(--decor-radius);
	transition: transform var(--duration-fast, 240ms) var(--ease-default, ease),
		box-shadow var(--duration-fast, 240ms) var(--ease-default, ease);
}

/* Lift the card on hover — reads as a tappable portfolio entry
   (reduced-motion handled globally by the skeleton). */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__card:hover {
	transform: translateY(-3px);
	box-shadow: 0 16px 40px -24px color-mix(in srgb, var(--ink) 45%, transparent);
}

/* Head row — numbered badge + title on one baseline.
   Num pinned; title fills + overflow-wrap:normal so Polish titles never break
   mid-word when the card is narrow (register-rows-quad trap, 2026-06-10). */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__head {
	gap: var(--space-sm) !important;
}

body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__num {
	flex: 0 0 auto;
	font-family: var(--font-display) !important;
	font-size: var(--text-sm) !important;
	font-weight: 700 !important;
	line-height: 1 !important;
	letter-spacing: 0 !important;
	color: var(--accent) !important;
	background: color-mix(in srgb, var(--accent) 14%, transparent);
	border-radius: var(--decor-radius-pill);
	padding: 0.4em 0.7em !important;
	margin: 0 !important;
}

body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__card-title {
	flex: 1 1 auto;
	min-width: 0;
	font-family: var(--font-display) !important;
	font-size: var(--text-lg) !important;
	font-weight: 600 !important;
	line-height: 1.2 !important;
	color: var(--text-primary) !important;
	margin: 0 !important;
	overflow-wrap: normal;
}

/* Pair — the two frames stacked vertically (before over after).
   A thin gap + a small "vs" rule between them reads the progression. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__pair {
	display: flex;
	flex-direction: column;
	gap: var(--space-2xs, 0.375rem);
}

/* Each frame — overflow-clip so the tag + photo round together. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__shot {
	position: relative;
	overflow: hidden;
	border-radius: var(--decor-radius);
}

body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__img {
	margin: 0 !important;
	display: block;
}

body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__img img {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	filter: var(--photo-filter, none);
	transition: transform var(--duration-slow, 900ms) var(--ease-elegant, ease);
}

/* Gentle paired zoom on the card's photos on hover — tactile result cue. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__card:hover .universal-before-after__img img {
	transform: scale(1.04);
}

/* Corner tags — sit on each frame.
   Fixed rgba drop-shadow lifts the chip off any photo (theme-independent,
   correct text-on-photo pattern) so light chips stay crisp on bright shots. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__tag {
	position: absolute;
	top: var(--space-xs);
	left: var(--space-xs);
	z-index: 3;
	font-family: var(--font-body) !important;
	font-size: var(--text-xs) !important;
	font-weight: 700 !important;
	letter-spacing: var(--tracking-wide) !important;
	text-transform: uppercase !important;
	margin: 0 !important;
	padding: 0.35em 0.8em !important;
	border-radius: var(--decor-radius-pill);
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.28), 0 1px 2px rgba(0, 0, 0, 0.22);
}

/* "Przed" — neutral dark chip (text-on-dark) on the top frame. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__tag--before {
	background: var(--background-dark, #141414);
	color: var(--text-on-dark, #fff) !important;
}

/* "Po" — accent CTA chip to signal the win on the bottom frame. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__tag--after {
	background: var(--cta-bg-primary);
	color: var(--cta-text-primary) !important;
}

/* Tablet/phone — collapse the 2x2 grid to a single column of cards. */
@media (max-width: 781px) {
	body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__grid {
		grid-template-columns: minmax(0, 1fr) !important;
	}
}

/* Phone — cap uppercase tracking on small screens (A5). */
@media (max-width: 640px) {
	body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__kicker,
	body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__tag {
		letter-spacing: 0 !important;
	}
}

/* Keyboard affordance — card focus-within mirrors the hover lift, image focus-visible. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__card:focus-within {
	outline: 2px solid var(--accent);
	outline-offset: 3px;
}

body.aibt-universal .universal-before-after--quad-stacked-pair-cards .universal-before-after__img img:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
}

/* A8/A9 left-shift fix (2026-06-10): centered intro children (kicker/headline) were
   max-width-capped by WP constrained layout but had horizontal margin 0, pinning them
   to the left. Force margin-inline:auto. The section class is doubled to lift
   specificity to (0,4,1) so this beats element-tag-qualified rules like
   h2.__headline (0,3,2); harmless on already-centered elements. Only left/right overridden. */
body.aibt-universal .universal-before-after--quad-stacked-pair-cards.universal-before-after--quad-stacked-pair-cards .universal-before-after__kicker,
body.aibt-universal .universal-before-after--quad-stacked-pair-cards.universal-before-after--quad-stacked-pair-cards .universal-before-after__headline { margin-inline: auto !important; }