/* BNG Timeline block: front end and editor. Mobile first. */
.wp-block-bng-timeline {
	--bng-tl-accent: #1F4FD8;
	--bng-tl-line: #E2E6EE;
	--bng-tl-dot: 16px;
	--bng-tl-gap: 40px;
	list-style: none;
	margin-left: 0;
	margin-right: 0;
	padding-left: 0;
	padding-right: 0;
	position: relative;
	display: flex;
	flex-direction: column;
	gap: clamp(28px, 4vw, 44px);
}

/* The vertical line. */
.wp-block-bng-timeline::before {
	content: "";
	position: absolute;
	top: 6px;
	bottom: 6px;
	left: calc(var(--bng-tl-dot) / 2 - 1px);
	width: 2px;
	background: var(--bng-tl-line);
	border-radius: 2px;
}

.wp-block-bng-timeline-item {
	position: relative;
	margin: 0;
	padding: 0 0 0 calc(var(--bng-tl-dot) + 20px);
	list-style: none;
}

.wp-block-bng-timeline-item .bng-tl-dot {
	position: absolute;
	top: 3px;
	left: 0;
	width: var(--bng-tl-dot);
	height: var(--bng-tl-dot);
	border-radius: 50%;
	background: var(--bng-tl-accent);
	border: 4px solid #FFFFFF;
	outline: 2px solid var(--bng-tl-accent);
	box-sizing: border-box;
}

.wp-block-bng-timeline-item .bng-tl-date {
	margin: 0 0 6px;
	color: var(--bng-tl-accent);
	font-size: 0.875rem;
	font-weight: 600;
	letter-spacing: 0.02em;
	line-height: 1.4;
}

.wp-block-bng-timeline-item .bng-tl-title {
	margin: 0 0 8px;
	font-size: clamp(1.15rem, 1.05rem + 0.4vw, 1.35rem);
	font-weight: 700;
	line-height: 1.25;
	letter-spacing: -0.01em;
}

.wp-block-bng-timeline-item .bng-tl-text {
	margin: 0;
	line-height: 1.6;
	opacity: 0.78;
	max-width: 60ch;
}

/* Alternating layout on wider screens. */
@media (min-width: 782px) {
	.wp-block-bng-timeline.is-layout-alternate::before {
		left: calc(50% - 1px);
	}

	.wp-block-bng-timeline.is-layout-alternate > .wp-block-bng-timeline-item {
		width: 50%;
		box-sizing: border-box;
		padding: 0 var(--bng-tl-gap) 0 0;
		text-align: right;
	}

	.wp-block-bng-timeline.is-layout-alternate > .wp-block-bng-timeline-item .bng-tl-dot {
		left: auto;
		right: calc(var(--bng-tl-dot) / -2);
	}

	.wp-block-bng-timeline.is-layout-alternate > .wp-block-bng-timeline-item .bng-tl-text {
		margin-left: auto;
	}

	.wp-block-bng-timeline.is-layout-alternate > .wp-block-bng-timeline-item:nth-of-type(even) {
		margin-left: 50%;
		padding: 0 0 0 var(--bng-tl-gap);
		text-align: left;
	}

	.wp-block-bng-timeline.is-layout-alternate > .wp-block-bng-timeline-item:nth-of-type(even) .bng-tl-dot {
		right: auto;
		left: calc(var(--bng-tl-dot) / -2);
	}

	.wp-block-bng-timeline.is-layout-alternate > .wp-block-bng-timeline-item:nth-of-type(even) .bng-tl-text {
		margin-left: 0;
	}
}