.mosaic-ia {
	--mosaic-ia-shade: rgba(10, 15, 30, 0.55);
}

.mosaic-ia__list {
	display: flex;
	gap: 0.5rem;
	block-size: var(--mosaic-ia-h, 30rem);
	margin: 0;
	padding: 0;
	list-style: none;
}

.mosaic-ia__panel {
	position: relative;
	flex: 1 1 0;
	min-inline-size: 0;
	overflow: hidden;
	border-radius: 1rem;
	background: var(--mosaic-color-surface, #e3e6ee);
	color: #fff;
	transition: flex-grow 0.5s ease;
}

.mosaic-ia__panel img {
	position: absolute;
	inset: 0;
	inline-size: 100%;
	block-size: 100%;
	object-fit: cover;
}

.mosaic-ia__panel::after {
	position: absolute;
	inset: 0;
	background: linear-gradient(to top, var(--mosaic-ia-shade), transparent 65%);
	content: "";
	pointer-events: none;
}

.mosaic-ia__toggle {
	position: absolute;
	inset: 0;
	z-index: 2;
	padding: 0;
	border: 0;
	background: transparent;
	cursor: pointer;
}

.mosaic-ia__toggle:focus-visible {
	outline: 3px solid #fff;
	outline-offset: -6px;
}

.mosaic-ia__caption {
	position: absolute;
	inset-inline: 1.25rem;
	inset-block-end: 1.1rem;
	z-index: 3;
	pointer-events: none;
}

.mosaic-ia__title {
	margin: 0;
	font-size: 1.15rem;
	font-weight: 700;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.mosaic-ia__text,
.mosaic-ia__link {
	margin: 0.35rem 0 0;
	max-block-size: 0;
	overflow: hidden;
	opacity: 0;
	transition: opacity 0.3s ease 0.1s, max-block-size 0.3s ease;
}

.mosaic-ia__link {
	display: inline-block;
	color: #fff;
	font-weight: 600;
	pointer-events: auto;
}

/* The open panel is wider and shows its text; with no script the pointer and the keyboard focus do the same. */
.mosaic-ia__panel.is-open {
	flex-grow: 4;
}

.mosaic-ia__panel.is-open .mosaic-ia__text,
.mosaic-ia__panel.is-open .mosaic-ia__link {
	max-block-size: 6rem;
	opacity: 1;
}

.mosaic-ia--hover .mosaic-ia__list:not(.is-js) .mosaic-ia__panel:hover,
.mosaic-ia__list:not(.is-js) .mosaic-ia__panel:focus-within {
	flex-grow: 4;
}

.mosaic-ia--hover .mosaic-ia__list:not(.is-js) .mosaic-ia__panel:hover .mosaic-ia__text,
.mosaic-ia--hover .mosaic-ia__list:not(.is-js) .mosaic-ia__panel:hover .mosaic-ia__link,
.mosaic-ia__list:not(.is-js) .mosaic-ia__panel:focus-within .mosaic-ia__text,
.mosaic-ia__list:not(.is-js) .mosaic-ia__panel:focus-within .mosaic-ia__link {
	max-block-size: 6rem;
	opacity: 1;
}

@media (max-width: 40rem) {
	/* Stacked: every panel is a bar that always shows its title; the open one grows to show the text and the link. */
	.mosaic-ia__list {
		flex-direction: column;
		block-size: auto;
	}

	.mosaic-ia__panel {
		flex: none;
		block-size: 4rem;
		transition: block-size 0.4s ease;
	}

	.mosaic-ia__panel.is-open,
	.mosaic-ia__list:not(.is-js) .mosaic-ia__panel:focus-within {
		flex-grow: 0;
		block-size: 14rem;
	}

	.mosaic-ia__panel::after {
		background: linear-gradient(to bottom, rgba(10, 15, 30, 0.75), rgba(10, 15, 30, 0.45));
	}

	.mosaic-ia__caption {
		inset-block: 0 auto;
		display: flex;
		flex-direction: column;
		justify-content: flex-start;
		min-block-size: 4rem;
		padding-block: 1.1rem 0.75rem;
		box-sizing: border-box;
	}

	.mosaic-ia__title {
		font-size: 1.05rem;
		line-height: 1.3;
		white-space: normal;
		overflow: visible;
		text-overflow: clip;
	}

	.mosaic-ia__panel:not(.is-open) .mosaic-ia__caption {
		justify-content: center;
		padding-block: 0;
	}
}

@media (prefers-reduced-motion: reduce) {
	.mosaic-ia__panel,
	.mosaic-ia__text,
	.mosaic-ia__link {
		transition: none;
	}
}