/**
 * Horizontal timeline — black / white / cream only (+ alpha variants).
 */

.adna-ht {
	--adna-black: #000000;
	--adna-white: #ffffff;
	--adna-cream: rgb(255, 241, 216);
	--adna-cream-soft: rgba(255, 241, 216, 0.14);
	--adna-cream-mid: rgba(255, 241, 216, 0.45);
	--adna-cream-glow: rgba(255, 241, 216, 0.35);
	--adna-white-dim: rgba(255, 255, 255, 0.72);
	--adna-fade-ease: cubic-bezier(0.33, 0.86, 0.26, 0.99);
	--adna-fade-in: 1.15s;
	--adna-font: "Cormorant Garamond", Garamond, "Times New Roman", serif;

	box-sizing: border-box;
	font-family: var(--adna-font);
	color: var(--adna-white);
	position: relative;
	width: 100%;
	max-width: 100%;
	overflow: visible;
}

.adna-ht *,
.adna-ht *::before,
.adna-ht *::after {
	box-sizing: border-box;
}

.adna-ht__inner {
	position: relative;
	width: 100%;
	overflow: visible;
}

.adna-ht__scroll {
	overflow-x: auto;
	overflow-y: visible;
	-webkit-overflow-scrolling: touch;
	scrollbar-color: var(--adna-cream-mid) var(--adna-black);
	scrollbar-width: thin;
	outline: none;
	/* Room so cards / shadows are not clipped by the scrollport */
	padding: 3.25rem 0.75rem 4.25rem;
	overscroll-behavior-x: auto;
}

.adna-ht__scroll:focus-visible {
	box-shadow: 0 0 0 2px var(--adna-black), 0 0 0 4px var(--adna-cream);
	border-radius: 0;
}

.adna-ht__scroll::-webkit-scrollbar {
	height: 8px;
}

.adna-ht__scroll::-webkit-scrollbar-track {
	background: var(--adna-black);
}

.adna-ht__scroll::-webkit-scrollbar-thumb {
	background: linear-gradient(
		90deg,
		var(--adna-cream-soft),
		var(--adna-cream-mid),
		var(--adna-cream-soft)
	);
	border-radius: 0;
}

.adna-ht__track {
	position: relative;
	display: flex;
	flex-direction: row;
	flex-wrap: nowrap;
	align-items: center;
	justify-content: flex-start;
	gap: clamp(0.75rem, 2vw, 2rem);
	min-height: clamp(320px, 48vw, 440px);
	padding-inline: clamp(2.5rem, 9vw, 6rem);
	width: max-content;
	min-width: 100%;
}

.adna-ht__line {
	position: absolute;
	left: 0;
	right: 0;
	top: 50%;
	height: 2px;
	margin-top: -1px;
	background: linear-gradient(
		90deg,
		transparent 0%,
		var(--adna-cream-soft) 6%,
		var(--adna-cream) 18%,
		var(--adna-cream) 82%,
		var(--adna-cream-soft) 94%,
		transparent 100%
	);
	pointer-events: none;
	z-index: 0;
	box-shadow: 0 0 24px var(--adna-cream-glow);
}

.adna-ht__segment {
	position: relative;
	z-index: 1;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	flex: 0 0 auto;
	width: clamp(260px, 28vw, 340px);
	padding-inline: 0.35rem;
	opacity: 0;
	will-change: opacity;
	transition:
		opacity var(--adna-fade-in) var(--adna-fade-ease),
		border-color 0.55s var(--adna-fade-ease),
		box-shadow 0.55s var(--adna-fade-ease);
}

.adna-ht__segment--visible {
	opacity: 1;
	will-change: auto;
}

@media (prefers-reduced-motion: reduce) {
	.adna-ht__segment {
		opacity: 1;
		transition: border-color 0.2s ease, box-shadow 0.2s ease;
	}
}

.adna-ht__segment--upper {
	flex-direction: column-reverse;
}

.adna-ht__segment--lower {
	flex-direction: column;
}

.adna-ht__node {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.5rem;
	flex-shrink: 0;
}

.adna-ht__dot {
	width: 14px;
	height: 14px;
	border-radius: 50%;
	background: var(--adna-black);
	border: 2px solid var(--adna-cream);
	box-shadow:
		0 0 0 3px var(--adna-black),
		0 0 20px var(--adna-cream-glow);
	transition:
		transform 0.35s ease,
		box-shadow 0.35s ease,
		border-color 0.35s ease;
}

.adna-ht__segment--visible .adna-ht__dot {
	animation: adna-ht-pulse 2.4s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
	.adna-ht__segment--visible .adna-ht__dot {
		animation: none;
	}
}

@keyframes adna-ht-pulse {
	0%,
	100% {
		box-shadow:
			0 0 0 3px var(--adna-black),
			0 0 16px var(--adna-cream-glow);
	}
	50% {
		box-shadow:
			0 0 0 3px var(--adna-black),
			0 0 28px rgba(255, 241, 216, 0.55);
	}
}

.adna-ht__year {
	font-family: var(--adna-font);
	font-weight: 700;
	font-size: clamp(1.5rem, 3.2vw, 2.25rem);
	letter-spacing: 0.06em;
	color: var(--adna-cream);
	text-shadow: 0 0 40px var(--adna-cream-glow);
	line-height: 1;
}

.adna-ht__card {
	width: 100%;
	margin-block: 1.25rem;
	padding: 1.1rem 1.15rem 1.2rem;
	border: 1px solid var(--adna-cream-soft);
	border-radius: 0;
	background: var(--adna-black);
	box-shadow:
		0 12px 40px rgba(0, 0, 0, 0.85),
		inset 0 1px 0 rgba(255, 241, 216, 0.06);
	opacity: 0.88;
	transition:
		opacity 0.75s var(--adna-fade-ease),
		border-color 0.75s var(--adna-fade-ease),
		box-shadow 0.75s var(--adna-fade-ease);
}

.adna-ht__segment--visible .adna-ht__card {
	opacity: 1;
}

@media (hover: hover) and (pointer: fine) {
	.adna-ht__segment:hover .adna-ht__card {
		border-color: var(--adna-cream-mid);
		box-shadow:
			0 18px 48px rgba(0, 0, 0, 0.9),
			0 0 0 1px rgba(255, 241, 216, 0.2),
			0 0 36px rgba(255, 241, 216, 0.12);
		opacity: 1;
	}

	.adna-ht__segment:hover .adna-ht__dot {
		transform: scale(1.06);
		border-color: var(--adna-white);
	}
}

@media (prefers-reduced-motion: reduce) {
	.adna-ht__card {
		opacity: 1;
		transition: border-color 0.2s ease, box-shadow 0.2s ease;
	}
}

.adna-ht__list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 0.55rem;
}

.adna-ht__item {
	font-family: var(--adna-font);
	font-size: clamp(0.8rem, 1.35vw, 0.95rem);
	line-height: 1.45;
	color: var(--adna-white-dim);
}

.adna-ht__item--heading {
	font-weight: 600;
	color: var(--adna-white);
	letter-spacing: 0.02em;
}

.adna-ht__item .adna-ht__link {
	color: inherit;
	text-decoration: underline;
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
}

.adna-ht__item .adna-ht__link:hover {
	color: var(--adna-cream);
}

.adna-ht__item .adna-ht__link:focus-visible {
	outline: 2px solid var(--adna-cream);
	outline-offset: 2px;
}

.adna-ht__edge {
	position: absolute;
	top: 0;
	bottom: 0;
	width: clamp(48px, 10vw, 120px);
	z-index: 2;
	pointer-events: none;
}

.adna-ht__edge--left {
	left: 0;
	background: linear-gradient(to right, var(--adna-black), transparent);
}

.adna-ht__edge--right {
	right: 0;
	background: linear-gradient(to left, var(--adna-black), transparent);
}

.adna-ht__scroll.adna-ht--dragging {
	cursor: grabbing;
	user-select: none;
}

.adna-ht__scroll.adna-ht--dragging * {
	cursor: grabbing;
}