/* =============================================================
   Course Landing Accordion
   Pure CSS layout using grid-auto-columns.
   Mobile: 1 card @ 100% of viewport width (full width of accordion content)
   Tablet+: N cards @ (100% - gaps) / N
   Card count per breakpoint controlled by --cla-per, set inline by PHP.
   ============================================================= */

/* ----- Root ----- */
.prefix-cla {
	--cla-per: 1;          /* cards per view (overridden by PHP scoped styles) */
	--cla-gap: 16px;
	position: relative;
	width: 100%;
	max-width: 100%;
	display: block;
	margin: 0 0 20px 0;
	box-sizing: border-box;
	color: #141b44;
}

.prefix-cla *,
.prefix-cla *::before,
.prefix-cla *::after {
	box-sizing: border-box;
}

/* ----- Shell ----- */
.prefix-cla__shell {
	background: #ffffff;
	border-radius: 14px;
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

/* ----- Header toggle ----- */
.prefix-cla__toggle {
	width: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	text-align: left;
	border: 0;
	cursor: pointer;
	background: transparent;
	padding: 20px 18px;
	border-radius: 14px;
	transition: background-color 0.2s ease;
	color: inherit;
	font: inherit;
}

.prefix-cla__toggle:hover {
	background-color: rgba(0, 0, 0, 0.02);
}

.prefix-cla__toggle:focus-visible {
	outline: 2px solid currentColor;
	outline-offset: -2px;
}

.prefix-cla__header-text {
	display: flex;
	flex-direction: column;
	gap: 6px;
	min-width: 0;
	flex: 1 1 auto;
}

.prefix-cla__title {
	display: block;
	margin: 0;
	font-size: clamp(1.375rem, 5vw, 1.75rem);
	font-weight: 800;
	line-height: 1.2;
	overflow-wrap: anywhere;
	color: inherit;
}

.prefix-cla__subtitle {
	display: block;
	margin: 0;
	font-size: 0.9375rem;
	line-height: 1.4;
	color: #5b607a;
}

.prefix-cla__chevron {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 auto;
	width: 28px;
	height: 28px;
	color: inherit;
	transition: transform 0.25s ease;
}

.prefix-cla__chevron svg {
	width: 22px;
	height: 22px;
}

.prefix-cla.is-closed .prefix-cla__chevron {
	transform: rotate(180deg);
}

/* ----- Panel ----- */
.prefix-cla__panel {
	overflow: hidden;
	transition: height 300ms ease;
}

.prefix-cla__panel[hidden] {
	display: none;
}

.prefix-cla__panel-inner {
	padding: 0 14px 20px;
}

/* ----- Slider ----- */
.prefix-cla__slider {
	position: relative;
}

/* Nav: centred above the slider on mobile */
.prefix-cla__nav {
	display: flex;
	justify-content: center;
	gap: 12px;
	margin-bottom: 14px;
}

.prefix-cla__nav[hidden] {
	display: none;
}

.prefix-cla__nav-btn {
	width: 40px;
	height: 40px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border: 1px solid rgba(17, 20, 65, 0.12);
	border-radius: 999px;
	cursor: pointer;
	background: #ffffff;
	color: #141b44;
	transition: transform 0.15s ease, background-color 0.2s ease;
	padding: 0;
}

.prefix-cla__nav-btn:hover {
	transform: translateY(-1px);
	background: #f7f7fa;
}

.prefix-cla__nav-btn svg {
	width: 18px;
	height: 18px;
}

/* Viewport: horizontal scroll with native snap */
.prefix-cla__viewport {
	overflow-x: auto;
	overflow-y: hidden;
	scroll-snap-type: x mandatory;
	scroll-behavior: smooth;
	padding: 6px 0 14px;
	margin: -6px 0 -14px;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: none;
}

.prefix-cla__viewport::-webkit-scrollbar {
	display: none;
}

/* Track: CSS grid with auto-columns.
   grid-auto-columns: calc((100% - gaps) / per-view)
   "100%" here = 100% of the grid container's inline size = viewport width.
   Unambiguous because grid-auto-columns doesn't have flex-basis's circular
   reference issue. */
.prefix-cla__track {
	display: grid;
	grid-auto-flow: column;
	grid-auto-columns: calc((100% - (var(--cla-gap) * (var(--cla-per) - 1))) / var(--cla-per));
	gap: var(--cla-gap);
}

/* ----- Card ----- */
.prefix-cla__card {
	scroll-snap-align: start;
	scroll-snap-stop: always;
	display: flex;
	flex-direction: column;
	overflow: hidden;
	border-radius: 14px;
	background: #f4f4f7;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 4px 12px rgba(0, 0, 0, 0.04);
	min-width: 0;
}

.prefix-cla__card-image-wrap {
	overflow: hidden;
	aspect-ratio: 16 / 10;
	background: #ddd;
	flex: 0 0 auto;
}

.prefix-cla__card-image {
	width: 100%;
	height: 100%;
	display: block;
	object-fit: cover;
}

.prefix-cla__card-image--placeholder {
	background: linear-gradient(135deg, rgba(0, 0, 0, 0.06), rgba(0, 0, 0, 0.12));
}

.prefix-cla__card-content {
	display: flex;
	flex-direction: column;
	gap: 14px;
	flex: 1 1 auto;
	padding: 18px;
	text-align: left;
}

.prefix-cla__card-title,
.prefix-cla__card-summary,
.prefix-cla__card-meta,
.prefix-cla__card-meta-row,
.prefix-cla__card-meta-text,
.prefix-cla__card-footer {
	text-align: left;
}

.prefix-cla__card-title {
	margin: 0;
	font-size: 1.125rem;
	font-weight: 700;
	line-height: 1.3;
	color: inherit;
}

.prefix-cla__card-title a {
	color: inherit;
	text-decoration: none;
}

.prefix-cla__card-title a:hover,
.prefix-cla__card-title a:focus {
	text-decoration: underline;
}

.prefix-cla__card-summary {
	margin: 0;
	font-size: 0.9375rem;
	line-height: 1.5;
	color: #5b607a;
}

.prefix-cla__card-summary p {
	margin: 0;
}

.prefix-cla__card-meta {
	display: flex;
	flex-direction: column;
	gap: 10px;
	font-size: 0.9375rem;
}

.prefix-cla__card-meta-row {
	display: flex;
	align-items: flex-start;
	gap: 10px;
}

.prefix-cla__card-meta-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 20px;
	line-height: 1;
	margin-top: 2px;
	color: #141b44;
}

.prefix-cla__card-meta-text {
	min-width: 0;
	overflow-wrap: anywhere;
	color: #141b44;
}

.prefix-cla__card-footer {
	margin-top: auto;
	padding-top: 4px;
}

.prefix-cla__card-link {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-weight: 600;
	text-decoration: none;
	color: inherit;
}

.prefix-cla__card-link:hover,
.prefix-cla__card-link:focus {
	text-decoration: underline;
}

/* ----- Dots ----- */
.prefix-cla__dots {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 8px;
	margin-top: 14px;
}

.prefix-cla__dots[hidden] {
	display: none;
}

.prefix-cla__dot {
	width: 10px;
	height: 10px;
	border-radius: 999px;
	background: rgba(20, 27, 68, 0.25);
	transition: background-color 0.2s ease, transform 0.2s ease;
	border: 0;
	padding: 0;
	cursor: pointer;
}

.prefix-cla__dot.is-active {
	background: #141b44;
	transform: scale(1.15);
}

/* ----- Empty state ----- */
.prefix-cla__empty {
	padding: 24px;
	border-radius: 14px;
	background: rgba(0, 0, 0, 0.03);
	color: #5b607a;
	text-align: center;
}