/**
 * Slider layer.
 *
 * Scroll snapping instead of a carousel library. Without JavaScript this stays
 * a usable horizontal scroller, which is the whole reason for the choice.
 */

.wtr-slider {
	/* De inline stijl zet --wtr-slides-desktop en niet --wtr-slides zelf: een
	   inline waarde wint van elke media query, en dan blijven tablet en mobiel
	   op het aantal van desktop staan. */
	--wtr-slides: var( --wtr-slides-desktop, 3 );
	position: relative;
}

.wtr-slider .wtr-viewport {
	overflow: hidden;
}

.wtr-slider .wtr-track {
	display: flex;
	gap: var( --wtr-gap );
	overflow-x: auto;
	scroll-behavior: smooth;
	scroll-snap-type: x mandatory;
	scrollbar-width: none;
	-ms-overflow-style: none;
	/* Ruimte voor de focusring, anders valt hij weg achter de viewport. */
	padding: 2px;
}

.wtr-slider .wtr-track::-webkit-scrollbar {
	display: none;
}

.wtr-slider .wtr-track:focus-visible {
	outline: 2px solid currentColor;
	outline-offset: 2px;
}

.wtr-slider .wtr-slide {
	flex: 0 0 calc( ( 100% - ( var( --wtr-slides ) - 1 ) * var( --wtr-gap ) ) / var( --wtr-slides ) );
	scroll-snap-align: start;
}

.wtr-slider .wtr-slide > * {
	block-size: 100%;
}

@media ( max-width: 1024px ) {

	.wtr-slider {
		--wtr-slides: var( --wtr-slides-tablet, 2 );
	}
}

@media ( max-width: 767px ) {

	.wtr-slider {
		--wtr-slides: var( --wtr-slides-mobile, 1 );
	}
}

/* Pijlen ------------------------------------------------------------------ */

.wtr-slider .wtr-arrows {
	display: flex;
	gap: 8px;
	justify-content: flex-end;
	margin-block-start: 16px;
}

.wtr-slider .wtr-arrow {
	align-items: center;
	background: transparent;
	border: 1px solid var( --wtr-border );
	border-radius: 50%;
	color: inherit;
	cursor: pointer;
	display: inline-flex;
	block-size: 40px;
	inline-size: 40px;
	font-size: 22px;
	justify-content: center;
	line-height: 1;
	padding: 0;
	transition: border-color 0.2s ease, opacity 0.2s ease;
}

.wtr-slider .wtr-arrow:hover {
	border-color: currentColor;
}

.wtr-slider .wtr-arrow[disabled] {
	cursor: default;
	opacity: 0.35;
}

/* Bolletjes --------------------------------------------------------------- */

.wtr-slider .wtr-dots {
	display: flex;
	gap: 8px;
	justify-content: center;
	margin-block-start: 16px;
}

.wtr-slider .wtr-dot {
	background: var( --wtr-border );
	border: 0;
	border-radius: 50%;
	cursor: pointer;
	block-size: 8px;
	inline-size: 8px;
	padding: 0;
	transition: background-color 0.2s ease, transform 0.2s ease;
}

.wtr-slider .wtr-dot[aria-selected="true"] {
	background: var( --wtr-star );
	transform: scale( 1.4 );
}

.wtr-slider .wtr-arrows:empty,
.wtr-slider .wtr-dots:empty {
	display: none;
}

@media ( prefers-reduced-motion: reduce ) {

	.wtr-slider .wtr-track {
		scroll-behavior: auto;
	}
}