/* TCM Sticky Scroll Blend — frontend styles */

.tcm-ssb-wrapper {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: start;
}

.tcm-ssb-wrapper.tcm-ssb-reverse {
	direction: rtl;
}
.tcm-ssb-wrapper.tcm-ssb-reverse .tcm-ssb-panel-inner,
.tcm-ssb-wrapper.tcm-ssb-reverse .tcm-ssb-panel-text {
	direction: ltr;
}

/* --- Text column --- */
.tcm-ssb-text-col {
	display: flex;
	flex-direction: column;
}

.tcm-ssb-panel {
	--tcm-ssb-panel-height: 90vh;
	--tcm-ssb-inactive-opacity: 0.35;
	min-height: var(--tcm-ssb-panel-height);
	display: flex;
	align-items: center;
	opacity: var(--tcm-ssb-inactive-opacity);
	transition: opacity 0.4s ease;
}

.tcm-ssb-panel.is-active {
	opacity: 1;
}

.tcm-ssb-panel-inner {
	max-width: 90%;
}

.tcm-ssb-panel-title {
	margin: 0 0 16px;
}

.tcm-ssb-panel-text {
	line-height: 1.6;
}

/* --- Sticky media column --- */
.tcm-ssb-media-col {
	--tcm-ssb-sticky-offset: 0px;
	--tcm-ssb-media-height: 70vh;
	--tcm-ssb-transition-speed: 700ms;
	--tcm-ssb-blur: 24px;
	position: sticky;
	height: var(--tcm-ssb-media-height);
	align-self: start;
}

/* Vertical alignment while stuck — Top / Center / Bottom */
.tcm-ssb-align-top .tcm-ssb-media-col {
	top: var(--tcm-ssb-sticky-offset);
}

.tcm-ssb-align-center .tcm-ssb-media-col {
	top: calc(50% - (var(--tcm-ssb-media-height) / 2) + var(--tcm-ssb-sticky-offset));
}

.tcm-ssb-align-bottom .tcm-ssb-media-col {
	top: auto;
	bottom: var(--tcm-ssb-sticky-offset);
	align-self: end;
}

.tcm-ssb-media-inner {
	position: relative;
	width: 100%;
	height: 100%;
	overflow: hidden;
	border-radius: 12px;
}

/* Per-panel overlay — color or image, set inline per-panel via PHP since each
   panel can have completely different overlay settings. */
.tcm-ssb-media-overlay {
	position: absolute;
	inset: 0;
	z-index: 2;
	pointer-events: none;
}

/* Per-panel inline image — hidden on desktop, shown above each panel's text on mobile */
.tcm-ssb-mobile-image-wrap {
	display: none;
}

.tcm-ssb-mobile-media {
	--tcm-ssb-mobile-aspect-ratio: 4 / 3;
	height: auto;
	aspect-ratio: var( --tcm-ssb-mobile-aspect-ratio );
}

/* Custom height mode overrides the aspect-ratio entirely with an explicit height */
.tcm-ssb-mobile-height-custom .tcm-ssb-mobile-media {
	--tcm-ssb-mobile-custom-height: 300px;
	aspect-ratio: unset;
	height: var( --tcm-ssb-mobile-custom-height );
}

.tcm-ssb-mobile-image {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

/* Desktop stacked images — each wrapped in its own item so the image and its
   overlay cross-fade/blur together as a single composited unit. */
.tcm-ssb-media-item {
	position: absolute;
	inset: 0;
	opacity: 0;
	filter: blur(var(--tcm-ssb-blur));
	transform: scale(1.04);
	transition:
		opacity var(--tcm-ssb-transition-speed) ease,
		filter var(--tcm-ssb-transition-speed) ease,
		transform var(--tcm-ssb-transition-speed) ease;
	will-change: opacity, filter, transform;
}

.tcm-ssb-media-item.is-active {
	opacity: 1;
	filter: blur(0px);
	transform: scale(1);
}

.tcm-ssb-media-image {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

/* --- Responsive: stack on smaller screens, drop sticky behaviour ---
   Duplicated at two possible breakpoints (1024px "tablet" / 767px "mobile only")
   depending on the widget's "Switch to Stacked Layout At" setting — only the
   block matching the wrapper's tcm-ssb-stack-at-* class actually applies. */

@media (max-width: 1024px) {
	.tcm-ssb-stack-at-tablet.tcm-ssb-wrapper,
	.tcm-ssb-stack-at-tablet.tcm-ssb-wrapper.tcm-ssb-reverse {
		grid-template-columns: 1fr;
		direction: ltr;
	}

	/* The shared sticky/cross-fade column only makes sense on desktop.
	   On mobile each panel shows its own image instead. */
	.tcm-ssb-stack-at-tablet .tcm-ssb-media-col {
		display: none;
	}

	.tcm-ssb-stack-at-tablet .tcm-ssb-mobile-image-wrap {
		display: block;
		margin-bottom: 20px;
	}

	.tcm-ssb-stack-at-tablet .tcm-ssb-panel {
		--tcm-ssb-mobile-panel-padding: 32px;
		flex-direction: column;
		padding: var( --tcm-ssb-mobile-panel-padding ) 24px;
	}

	.tcm-ssb-stack-at-tablet .tcm-ssb-panel-inner {
		max-width: 100%;
		text-align: center;
		margin: 0 auto;
	}

	/* Alternating panel backgrounds — set via the widget's Mobile Layout style controls */
	.tcm-ssb-stack-at-tablet .tcm-ssb-text-col .tcm-ssb-panel:nth-child(odd) {
		background-color: var( --tcm-ssb-mobile-bg-odd, transparent );
	}

	.tcm-ssb-stack-at-tablet .tcm-ssb-text-col .tcm-ssb-panel:nth-child(even) {
		background-color: var( --tcm-ssb-mobile-bg-even, transparent );
	}
}

@media (max-width: 767px) {
	.tcm-ssb-stack-at-mobile.tcm-ssb-wrapper,
	.tcm-ssb-stack-at-mobile.tcm-ssb-wrapper.tcm-ssb-reverse {
		grid-template-columns: 1fr;
		direction: ltr;
	}

	.tcm-ssb-stack-at-mobile .tcm-ssb-media-col {
		display: none;
	}

	.tcm-ssb-stack-at-mobile .tcm-ssb-mobile-image-wrap {
		display: block;
		margin-bottom: 20px;
	}

	.tcm-ssb-stack-at-mobile .tcm-ssb-panel {
		--tcm-ssb-mobile-panel-padding: 32px;
		flex-direction: column;
		padding: var( --tcm-ssb-mobile-panel-padding ) 24px;
	}

	.tcm-ssb-stack-at-mobile .tcm-ssb-panel-inner {
		max-width: 100%;
		text-align: center;
		margin: 0 auto;
	}

	.tcm-ssb-stack-at-mobile .tcm-ssb-text-col .tcm-ssb-panel:nth-child(odd) {
		background-color: var( --tcm-ssb-mobile-bg-odd, transparent );
	}

	.tcm-ssb-stack-at-mobile .tcm-ssb-text-col .tcm-ssb-panel:nth-child(even) {
		background-color: var( --tcm-ssb-mobile-bg-even, transparent );
	}
}