/*
 * Image Accordion (1.0.0).
 *
 * Photo panels in a row, one open at a time. The open panel is wider, its photo brighter,
 * its title larger, and its text and link show. Below 1025px the panels become cards with
 * the photo on top and all their text shown; below 561px, one card per row.
 *
 * The open panel carries "is-active": set on the server, moved by view.js. Until view.js
 * has marked the block ready (data-arenex-ready), and whenever JavaScript is off, hovering
 * or tabbing into a panel opens it too, so every panel can still be read.
 *
 * Tokens only. Class rules sit inside :where(), so a theme adjusts them freely.
 *
 * Exception: WordPress prints block CSS before the theme's stylesheets, because block
 * styles load on demand. The theme's element resets (heading and paragraph margins,
 * heading size and colour, link colour and underline, image and icon height, the focus
 * ring) would then override zero-specificity rules. The rules below that must beat those
 * resets keep one class outside :where(). A child theme still adjusts them with a class
 * selector of its own.
 */

/* ---- Band and container ---- */
:where(.arenex-image-accordion) {
	padding-block: var(--section-padding);
}
:where(.arenex-image-accordion__inner) {
	box-sizing: border-box;
	max-width: var(--container-max-width);
	margin-inline: auto;
	padding-inline: var(--container-padding);
}

/* ---- Section head (InnerBlocks) ---- */
:where(.arenex-image-accordion__head) {
	max-width: var(--head-max-width);
	margin-block-end: var(--gap-lg);
}
.arenex-image-accordion__head :is(h1, h2, h3, h4, p) {
	margin-block: 0;
}
.arenex-image-accordion__head .is-style-eyebrow {
	margin-block-end: 1em;
}
.arenex-image-accordion__head :is(h1, h2, h3, h4) + p {
	margin-block-start: var(--gap-md);
}
:where(.arenex-image-accordion__head .is-style-lead) {
	color: var(--text-color);
}

/* ---- Panels ---- */
:where(.arenex-image-accordion__panels) {
	display: flex;
	gap: calc(var(--gap-sm) / 2);
	min-height: var(--media-service-height);
}
:where(.arenex-image-accordion__panel) {
	position: relative;
	flex: 1 1 0;
	min-width: 0;
	overflow: hidden;
	border-radius: var(--radius);
	background: var(--bg-dark);
	color: var(--on-dark-color);
	transition: flex-grow 0.48s cubic-bezier(0.22, 1, 0.36, 1);
}

/* The photo fills the panel, dimmed until the panel opens. */
:where(.arenex-image-accordion__img) {
	position: absolute;
	inset: 0;
	display: block;
	width: 100%;
	object-fit: cover;
	opacity: 0.55;
	transition: opacity 0.48s cubic-bezier(0.22, 1, 0.36, 1), transform 0.48s cubic-bezier(0.22, 1, 0.36, 1);
}
.arenex-image-accordion__img {
	height: 100%;
}
:where(.arenex-image-accordion__scrim) {
	position: absolute;
	inset: 0;
	background: linear-gradient(
		180deg,
		color-mix(in srgb, var(--bg-dark) 12%, transparent) 0%,
		color-mix(in srgb, var(--bg-dark) 22%, transparent) 34%,
		color-mix(in srgb, var(--bg-dark) 84%, transparent) 58%,
		color-mix(in srgb, var(--bg-dark) 96%, transparent) 100%
	);
}

/* The whole panel is the button; the link inside stays clickable above it. */
:where(.arenex-image-accordion__toggle) {
	position: absolute;
	inset: 0;
	z-index: 1;
	margin: 0;
	padding: 0;
	border: 0;
	background: none;
	cursor: pointer;
}
.arenex-image-accordion__toggle:focus-visible {
	outline-offset: calc(-1 * var(--focus-ring, 2px) - 2px);
}

:where(.arenex-image-accordion__num) {
	position: absolute;
	top: var(--gap-md);
	left: var(--gap-md);
	z-index: 2;
	padding: calc(var(--gap-sm) / 4) calc(var(--gap-sm) / 2);
	border-radius: var(--radius);
	background: color-mix(in srgb, var(--bg-dark) 72%, transparent);
	color: var(--on-dark-color);
	font-family: var(--font-eyebrow);
	font-size: var(--caption-size);
	letter-spacing: 0.14em;
	line-height: var(--body-line-height);
	pointer-events: none;
}

/* ---- Words on a panel ---- */
:where(.arenex-image-accordion__body) {
	position: absolute;
	right: 0;
	bottom: 0;
	left: 0;
	z-index: 2;
	padding: calc(var(--gap-sm) * 2);
	pointer-events: none;
}
:where(.arenex-image-accordion__kicker) {
	color: var(--accent-on-dark);
	font-family: var(--font-eyebrow);
	font-size: var(--label-size);
	letter-spacing: 0.14em;
	line-height: var(--body-line-height);
	text-transform: uppercase;
}
.arenex-image-accordion__kicker {
	margin: 0 0 0.667em;
}
:where(.arenex-image-accordion__title) {
	transition: font-size 0.24s cubic-bezier(0.22, 1, 0.36, 1);
}
.arenex-image-accordion__title {
	margin: 0;
	color: inherit;
	font-size: var(--h4-size);
	line-height: var(--heading-line-height);
}
:where(.arenex-image-accordion__text) {
	max-width: 36ch;
	max-height: 0;
	overflow: hidden;
	opacity: 0;
	color: var(--on-dark-muted);
	font-size: var(--body-size);
	line-height: var(--body-line-height);
	transition: max-height 0.48s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.48s cubic-bezier(0.22, 1, 0.36, 1);
}
.arenex-image-accordion__text {
	margin: 0.706em 0 0;
}
:where(.arenex-image-accordion__link) {
	position: relative;
	display: none;
	align-items: center;
	gap: 0.47em;
	margin-top: 0.941em;
	border-radius: var(--radius);
	font-family: var(--font-body);
	font-size: var(--body-size);
	font-weight: 600;
	letter-spacing: 0;
	line-height: 1;
	white-space: nowrap;
	pointer-events: auto;
	transition: transform 0.12s cubic-bezier(0.22, 1, 0.36, 1);
}
.arenex-image-accordion__link,
.arenex-image-accordion__link:hover {
	color: var(--accent-on-dark);
	text-decoration: none;
}
/* A text link is one line tall: an invisible pad makes it easier to tap without moving anything. */
:where(.arenex-image-accordion__link)::before {
	content: "";
	position: absolute;
	inset: -0.47em -0.235em;
}
:where(.arenex-image-accordion__link:active) {
	transform: translateY(1px);
}
.arenex-image-accordion__link svg {
	flex: none;
	width: 0.941em;
	height: 0.941em;
}
:where(.arenex-image-accordion__link svg) {
	transition: transform 0.12s cubic-bezier(0.22, 1, 0.36, 1);
}
:where(.arenex-image-accordion__link:hover svg) {
	transform: translateX(0.18em);
}

/* ---- The open panel ----
 * is-active, or (until view.js is ready) a panel with the pointer over it or focus inside it.
 */
:where(.arenex-image-accordion__panel.is-active),
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panel:is(:hover, :focus-within)) {
	flex-grow: 2.4;
}
:where(.arenex-image-accordion__panel.is-active .arenex-image-accordion__img),
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panel:is(:hover, :focus-within) .arenex-image-accordion__img) {
	opacity: 0.9;
}
:where(.arenex-image-accordion__panel.is-active) .arenex-image-accordion__title,
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panel:is(:hover, :focus-within)) .arenex-image-accordion__title {
	font-size: var(--h3-size);
}
:where(.arenex-image-accordion__panel.is-active .arenex-image-accordion__text),
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panel:is(:hover, :focus-within) .arenex-image-accordion__text) {
	max-height: 11.3em;
	opacity: 1;
}
:where(.arenex-image-accordion__panel.is-active .arenex-image-accordion__link),
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panel:is(:hover, :focus-within) .arenex-image-accordion__link) {
	display: inline-flex;
}
:where(.arenex-image-accordion__panel:hover .arenex-image-accordion__img) {
	transform: scale(1.03);
}

/* Until view.js is ready: while another panel is hovered or focused, the first open panel closes. */
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panels:has(.arenex-image-accordion__panel:is(:hover, :focus-within)) .arenex-image-accordion__panel.is-active:not(:hover, :focus-within)) {
	flex-grow: 1;
}
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panels:has(.arenex-image-accordion__panel:is(:hover, :focus-within)) .arenex-image-accordion__panel.is-active:not(:hover, :focus-within) .arenex-image-accordion__img) {
	opacity: 0.55;
}
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panels:has(.arenex-image-accordion__panel:is(:hover, :focus-within)) .arenex-image-accordion__panel.is-active:not(:hover, :focus-within)) .arenex-image-accordion__title {
	font-size: var(--h4-size);
}
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panels:has(.arenex-image-accordion__panel:is(:hover, :focus-within)) .arenex-image-accordion__panel.is-active:not(:hover, :focus-within) .arenex-image-accordion__text) {
	max-height: 0;
	opacity: 0;
}
:where(.arenex-image-accordion:not([data-arenex-ready]) .arenex-image-accordion__panels:has(.arenex-image-accordion__panel:is(:hover, :focus-within)) .arenex-image-accordion__panel.is-active:not(:hover, :focus-within) .arenex-image-accordion__link) {
	display: none;
}

/* ---- Screen sizes ---- */
@media (max-width: 1024px) {
	/* Cards: photo on top, every card shows all its words; nothing needs opening. */
	:where(.arenex-image-accordion__panels) {
		display: grid;
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: var(--gap-sm);
		min-height: 0;
	}
	:where(.arenex-image-accordion__panel) {
		flex: none;
		min-height: 0;
		border: 1px solid var(--border-color);
		background: var(--surface-color);
		box-shadow: var(--shadow-raised, 0 2px 8px rgb(0 0 0 / 0.08));
		color: var(--heading-color);
	}
	/* A card with a link is clickable all over (view.js). */
	:where(.arenex-image-accordion[data-arenex-ready] .arenex-image-accordion__panel:has(.arenex-image-accordion__link)) {
		cursor: pointer;
	}
	:where(.arenex-image-accordion) .arenex-image-accordion__img {
		position: static;
		height: auto;
		aspect-ratio: 4 / 3;
		opacity: 1;
		transform: none;
	}
	:where(.arenex-image-accordion__scrim),
	:where(.arenex-image-accordion__toggle) {
		display: none;
	}
	:where(.arenex-image-accordion__num) {
		top: calc(var(--gap-sm) * 0.75);
		left: calc(var(--gap-sm) * 0.75);
	}
	:where(.arenex-image-accordion__body) {
		position: static;
		padding: var(--gap-md);
		pointer-events: auto;
	}
	:where(.arenex-image-accordion__kicker) {
		color: var(--primary-color);
	}
	:where(.arenex-image-accordion) .arenex-image-accordion__title {
		font-size: var(--h4-size);
	}
	:where(.arenex-image-accordion__text) {
		max-height: none;
		opacity: 1;
		color: var(--text-color);
	}
	:where(.arenex-image-accordion__link) {
		display: inline-flex;
	}
	:where(.arenex-image-accordion) .arenex-image-accordion__link,
	:where(.arenex-image-accordion) .arenex-image-accordion__link:hover {
		color: var(--primary-color);
	}
}
@media (max-width: 560px) {
	:where(.arenex-image-accordion__panels) {
		grid-template-columns: minmax(0, 1fr);
	}
}
@media (prefers-reduced-motion: reduce) {
	:where(.arenex-image-accordion__panel),
	:where(.arenex-image-accordion__img),
	:where(.arenex-image-accordion__title),
	:where(.arenex-image-accordion__text),
	:where(.arenex-image-accordion__link),
	:where(.arenex-image-accordion__link svg) {
		transition: none;
	}
	:where(.arenex-image-accordion__panel:hover .arenex-image-accordion__img) {
		transform: none;
	}
}