/**
 * Index marquee and the index card it is made of.
 *
 * Measured from the design (Home hero, 390 / 768 / 1440): cards are 330 wide with a 24 gap,
 * the row sits 24px from the edge and has 40px below it, and one loop takes 60s for four
 * cards (15s a card). The card is a dark glass tile and assumes a dark band behind it.
 *
 * Direction: in an RTL page the first card is at the right and the row drifts to the right,
 * as in the design; the track is N equal sets (--acini-marquee-sets, three or more) and moves
 * exactly one set per cycle.
 */

.acini-index-marquee {
	position: relative;
	padding-block-end: var(--acini-space-xl);
	overflow: hidden;
}

.acini-index-marquee__track {
	display: flex;
	inline-size: max-content;
	margin: 0;
	margin-inline-start: var(--acini-space-lg);
	padding: 0;
	list-style: none;
	animation: acini-marquee-rtl calc(var(--acini-marquee-seconds, 60) * 1s) linear infinite;
}

html[dir="ltr"] .acini-index-marquee__track {
	animation-name: acini-marquee-ltr;
}

.acini-index-marquee__item {
	flex: none;
	margin-inline-end: var(--acini-space-lg);
}

@keyframes acini-marquee-rtl {
	from {
		transform: translateX(0);
	}

	to {
		transform: translateX(calc(100% / var(--acini-marquee-sets, 3)));
	}
}

@keyframes acini-marquee-ltr {
	from {
		transform: translateX(calc(-100% / var(--acini-marquee-sets, 3)));
	}

	to {
		transform: translateX(0);
	}
}

/* Stops while it is being read or used: under the pointer, or with keyboard focus on a card.
   Keyboard focus only (:focus-visible) — a clicked card keeps its focus, and Back restores the
   page with it, which would leave the row stopped for good. */
.acini-index-marquee:has(:focus-visible) .acini-index-marquee__track {
	animation-play-state: paused;
}

@supports not selector(:has(*)) {
	.acini-index-marquee:focus-within .acini-index-marquee__track {
		animation-play-state: paused;
	}
}

@media (hover: hover) {
	.acini-index-marquee:hover .acini-index-marquee__track {
		animation-play-state: paused;
	}
}

/* Reduced motion: the row stops and becomes a strip to scroll; the repeats are dropped. */
@media (prefers-reduced-motion: reduce) {
	.acini-index-marquee {
		overflow-x: auto;
	}

	.acini-index-marquee__track {
		animation: none;
	}

	.acini-index-marquee__item--clone {
		display: none;
	}
}

/* ---- Index card ---------------------------------------------------------- */

.acini-index-card {
	display: flex;
	flex-direction: column;
	gap: var(--acini-space-md);
	inline-size: 33rem;
	padding: calc(var(--acini-space-md) + var(--acini-space-2xs)); /* 20px */
	color: var(--acini-text-inverse);
	text-decoration: none;
	background: color-mix(in srgb, var(--acini-text-inverse) 2%, transparent);
	border: 1px solid color-mix(in srgb, var(--acini-text-inverse) 8%, transparent);
	border-radius: var(--acini-radius-lg);
	transition: border-color var(--acini-transition);
}

.acini-index-card:focus-visible {
	outline: 2px solid var(--acini-text-inverse);
	outline-offset: 2px;
}

.acini-index-card__head {
	display: block;
	min-inline-size: 0;
}

.acini-index-card__title {
	display: block;
	overflow: hidden;
	font-family: var(--acini-font-heading);
	font-size: var(--acini-text-base);
	font-weight: var(--acini-weight-medium);
	line-height: 1.25;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.acini-index-card__summary {
	display: -webkit-box;
	margin-block-start: 0.6rem;
	overflow: hidden;
	font-size: var(--acini-text-xs);
	line-height: 1.4;
	color: color-mix(in srgb, var(--acini-text-inverse) 64%, var(--acini-bg-hero));
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
	line-clamp: 2;
}

.acini-index-card__returns {
	display: flex;
	gap: 1.4rem;
}

.acini-index-card__return {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 0.7rem;
}

.acini-index-card__caption {
	font-family: var(--acini-font-heading);
	font-size: var(--acini-text-xs);
	font-weight: var(--acini-weight-medium);
	line-height: var(--acini-leading-normal);
}

.acini-index-card__value {
	display: block;
	min-inline-size: 6.2rem;
	padding: 0.1rem 0.7rem;
	font-size: var(--acini-text-13);
	line-height: var(--acini-leading-normal);
	color: color-mix(in srgb, var(--acini-text-inverse) 82%, var(--acini-bg-hero));
	text-align: center;
	background: color-mix(in srgb, var(--acini-text-inverse) 8%, transparent);
	border-radius: 0.5rem;
}

@media (hover: hover) {
	.acini-index-card:hover {
		border-color: color-mix(in srgb, var(--acini-text-inverse) 24%, transparent);
	}
}

/* ---- Light tone: the "related indexes" band of a post ------------------------------------
   Measured from the design (post pages, 390 / 768 / 1440): a grey band with a violet rule along
   its foot, 64px above and below (40px on a phone), the heading 28px medium violet, centred,
   28px over the row; the row runs from edge to edge. The cards are a faint grey tile with a
   lilac border; text in the text colours. */

.acini-index-band {
	display: flex;
	flex-direction: column;
	gap: 2.8rem;
	padding-block: var(--acini-space-xl);
	background: var(--acini-bg-subtle);
	border-block-end: 1px solid var(--acini-accent);
}

.acini-index-band__heading {
	margin: 0;
	padding-inline: var(--acini-gutter-section);
	font-family: var(--acini-font-heading);
	font-size: var(--acini-text-2xl);
	font-weight: var(--acini-weight-medium);
	line-height: 1.29;
	color: var(--acini-accent);
	text-align: center;
}

@media (min-width: 48em) {
	.acini-index-band {
		padding-block: var(--acini-space-2xl);
	}
}

.acini-index-marquee--light {
	padding-block-end: 0;
}

.acini-index-marquee--light .acini-index-card {
	color: var(--acini-text);
	background: color-mix(in srgb, var(--acini-text) 2%, transparent);
	border-color: var(--acini-mesh-lilac);
}

.acini-index-marquee--light .acini-index-card:focus-visible {
	outline-color: var(--acini-focus);
}

.acini-index-marquee--light .acini-index-card__summary {
	color: var(--acini-text-muted);
}

.acini-index-marquee--light .acini-index-card__value {
	color: var(--acini-text);
	background: color-mix(in srgb, var(--acini-text) 8%, transparent);
}

@media (hover: hover) {
	.acini-index-marquee--light .acini-index-card:hover {
		border-color: var(--acini-accent);
	}
}