.pm3d-section--bursts {
	padding-top: 16px;
	margin-top: 0;
}

.pm3d-section--bursts .pm3d-section__hint {
	margin-top: 0;
	margin-bottom: 14px;
}

/* Full width: four equal tracks; natural-size cards centred in each quarter */
.pm3-busiest--bursts.pm3-busiest--inline .pm3-busiest__list {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 24px;
	width: 100%;
	max-width: none;
	justify-items: center;
}

@media (max-width: 900px) {
	.pm3-busiest--bursts.pm3-busiest--inline .pm3-busiest__list {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 520px) {
	.pm3-busiest--bursts.pm3-busiest--inline .pm3-busiest__list {
		grid-template-columns: 1fr;
		justify-items: center;
		max-width: 16rem;
		margin-inline: auto;
	}

	.pm3-busiest--bursts .pm3-busiest__card {
		width: 100%;
	}
}

.pm3-busiest--bursts.pm3-busiest--inline .pm3-busiest__list > li {
	display: flex;
	justify-content: center;
	width: 100%;
	padding: 0;
	border: none;
	background: none;
	box-shadow: none;
	text-align: center;
}

.pm3-busiest--bursts .pm3-busiest__card {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	box-sizing: border-box;
	width: min(11.5rem, 100%);
	aspect-ratio: 6 / 5;
	padding: 14px 12px;
	text-align: center;
	text-decoration: none;
	color: inherit;
	border-radius: var(--k2-radius-md);
	border: 1px solid color-mix(in srgb, var(--k2-border-subtle) 65%, transparent);
	background: none;
	box-shadow: none;
	transition: border-color 0.2s, border-width 0.2s, box-shadow 0.2s, padding 0.2s;
}

body.k2-site a.pm3-busiest__card:hover,
body.k2-site a.pm3-busiest__card:focus-visible {
	border-width: 2px;
	padding: 13px 11px;
	border-color: var(--k2-accent);
	box-shadow: 0 0 20px var(--k2-accent-glow);
	outline: none;
	text-decoration: none;
}

body.k2-site a.pm3-busiest__card:hover *,
body.k2-site a.pm3-busiest__card:focus-visible * {
	text-decoration: none;
}

.pm3-busiest--bursts .pm3-busiest__card--empty {
	opacity: 0.55;
	cursor: default;
}

.pm3-busiest--bursts .pm3-busiest__glyph {
	display: block;
	margin-bottom: 6px;
	font-size: 13px;
	line-height: 1;
	opacity: 0.85;
}

.pm3-busiest--bursts .pm3-busiest__kind {
	display: block;
	margin-bottom: 8px;
	color: var(--k2-text-muted);
}

.pm3-busiest--bursts .pm3-busiest__card strong {
	display: block;
	font-size: 26px;
	font-weight: 600;
	line-height: 1.1;
	color: var(--k2-link-star);
	text-shadow: 0 0 20px var(--k2-accent-glow);
}

.pm3-busiest--bursts .pm3-busiest__unit {
	display: block;
	margin-top: 2px;
	font-size: 13px;
	line-height: 1.35;
	color: var(--k2-text-muted);
}

.pm3-busiest--bursts .pm3-busiest__when {
	display: block;
	margin-top: 4px;
	font-size: 13px;
	line-height: 1.35;
	color: var(--k2-text-muted);
}

/* Legacy lab card chrome (pm3hij-peak--cards) */
.pm3hij-peak--cards .pm3-busiest__list strong {
	color: var(--k2-link-star);
	text-shadow: 0 0 20px var(--k2-accent-glow);
}

.pm3hij-peak--cards .pm3-busiest__list em {
	display: block;
	margin-top: 4px;
	font-size: 13px;
}

.pm3hij-peak--cards .pm3-busiest--inline .pm3-busiest__list li {
	background: var(--k2-bg-surface);
	border: 1px solid var(--k2-border-subtle);
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}