/**
 * App shell — Apple Music grid: sticky floating sidebar + scrolling main.
 */
.bl-app {
	display: grid;
	grid-template-columns: var(--bl-sidebar-w) minmax(0, 1fr);
	grid-template-rows: minmax(0, 1fr);
	min-height: 100vh;
	min-height: 100dvh;
	background: var(--bl-bg);
	overflow: hidden;
}

.bl-sidebar-col {
	position: relative;
	z-index: var(--bl-z-sidebar);
	padding: var(--bl-gap);
	pointer-events: none;
}

.bl-sidebar-col > * {
	pointer-events: auto;
}

.bl-main {
	position: relative;
	display: flex;
	flex-direction: column;
	min-width: 0;
	height: 100vh;
	height: 100dvh;
	overflow: hidden;
}

.bl-main__scroll {
	flex: 1;
	min-height: 0;
	overflow-x: hidden;
	overflow-y: auto;
	scroll-behavior: smooth;
	padding: calc(var(--bl-topbar-h) + 20px) var(--bl-pad-main) calc(var(--bl-player-h) + 36px);
	padding-left: var(--bl-pad-main);
	padding-right: var(--bl-pad-main);
	scrollbar-width: thin;
	scrollbar-color: var(--bl-fill-strong) transparent;
}

.bl-main__scroll::-webkit-scrollbar {
	width: 8px;
}

.bl-main__scroll::-webkit-scrollbar-thumb {
	background: var(--bl-fill-strong);
	border-radius: 8px;
}

.bl-page-title {
	margin: 0 0 20px;
	font-size: var(--bl-fs-page);
	line-height: var(--bl-lh-page);
	font-weight: 700;
	letter-spacing: -0.02em;
	color: var(--bl-text);
}

.bl-page-lead {
	margin: -8px 0 28px;
	font-size: var(--bl-fs-shelf);
	line-height: var(--bl-lh-shelf);
	color: var(--bl-text-secondary);
	max-width: 42rem;
}

.bl-stub {
	padding: 28px 0 48px;
}

.bl-stub__note {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 10px 14px;
	border-radius: var(--bl-radius-sm);
	background: var(--bl-fill);
	color: var(--bl-text-secondary);
	font-size: var(--bl-fs-sub);
}

/* Shelves / carousels — content passes under floating chrome */
.bl-shelf {
	margin: 0 0 36px;
}

.bl-shelf__head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 16px;
	margin: 0 0 14px;
}

.bl-shelf__title {
	margin: 0;
	font-size: var(--bl-fs-shelf);
	line-height: var(--bl-lh-shelf);
	font-weight: 700;
	color: var(--bl-text);
}

.bl-shelf__more {
	font-size: var(--bl-fs-sub);
	color: var(--bl-accent);
	font-weight: 500;
}

.bl-shelf__rail {
	display: flex;
	gap: 16px;
	overflow-x: auto;
	padding: 4px 2px 12px;
	scroll-snap-type: x mandatory;
	scrollbar-width: none;
	margin-inline: calc(var(--bl-pad-main) * -1);
	padding-inline: var(--bl-pad-main);
}

.bl-shelf__rail::-webkit-scrollbar {
	display: none;
}

.bl-card {
	flex: 0 0 auto;
	width: min(280px, 42vw);
	scroll-snap-align: start;
}

.bl-card__art {
	position: relative;
	aspect-ratio: 16 / 10;
	border-radius: var(--bl-radius-card);
	overflow: hidden;
	background: linear-gradient(135deg, #3a3a3c, #1c1c1e);
	box-shadow: var(--bl-shadow-soft);
}

.bl-card__art img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.bl-card__eyebrow {
	margin: 10px 0 2px;
	font-size: var(--bl-fs-micro);
	line-height: 14px;
	font-weight: 600;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--bl-accent);
}

.bl-card__title {
	margin: 0;
	font-size: var(--bl-fs-shelf);
	line-height: var(--bl-lh-shelf);
	font-weight: 400;
	color: var(--bl-text);
}

.bl-card__sub {
	margin: 2px 0 0;
	font-size: var(--bl-fs-sub);
	line-height: var(--bl-lh-sub);
	color: var(--bl-text-secondary);
}

.bl-tracks {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: 2px 24px;
}

.bl-track {
	display: grid;
	grid-template-columns: 40px minmax(0, 1fr) 28px;
	align-items: center;
	gap: 10px;
	padding: 6px 4px;
	border-radius: var(--bl-radius-sm);
	min-height: 48px;
}

.bl-track:hover {
	background: var(--bl-fill);
}

.bl-track__art {
	width: 40px;
	height: 40px;
	border-radius: 4px;
	overflow: hidden;
	background: var(--bl-fill-strong);
}

.bl-track__art img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.bl-track__meta {
	min-width: 0;
}

.bl-track__title {
	margin: 0;
	font-size: var(--bl-fs-track);
	line-height: var(--bl-lh-track);
	color: var(--bl-text);
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.bl-track__artist {
	margin: 0;
	font-size: var(--bl-fs-sub);
	line-height: var(--bl-lh-sub);
	color: var(--bl-text-secondary);
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.bl-track__more {
	width: 28px;
	height: 28px;
	display: grid;
	place-items: center;
	color: var(--bl-text-tertiary);
	border-radius: 50%;
}

.bl-track__more:hover {
	background: var(--bl-fill-hover);
	color: var(--bl-text);
}

@media (max-width: 960px) {
	.bl-app {
		grid-template-columns: 1fr;
		grid-template-rows: auto minmax(0, 1fr);
	}

	.bl-sidebar-col {
		position: sticky;
		top: 0;
		z-index: var(--bl-z-sidebar);
		padding: 8px 8px 0;
	}

	.bl-main {
		height: auto;
		min-height: calc(100dvh - 72px);
	}

	:root,
	[data-theme="light"],
	[data-theme="dark"] {
		--bl-pad-main: 16px;
	}

	.bl-page-title {
		font-size: 28px;
		line-height: 34px;
	}
}