/*
 * LIGHTSIDE Editorial Reading System
 * Premium layouts for long-form book excerpts, chapters and technical essays.
 */

.ls-reading-progress {
	position: fixed;
	top: 0;
	left: 0;
	z-index: 200;
	width: 100%;
	height: 3px;
	background: rgba(245, 247, 250, 0.08);
	pointer-events: none;
}

.ls-reading-progress__bar {
	display: block;
	width: 0;
	height: 100%;
	background: linear-gradient(90deg, var(--ls-color-electric), var(--ls-color-electric-soft));
	box-shadow: 0 0 18px rgba(0, 157, 255, 0.5);
	transform-origin: left center;
	transition: width 90ms linear;
}

.ls-reading-page {
	--ls-reading-bg: #030406;
	--ls-reading-paper: #080b0f;
	--ls-reading-ink: #f5f7fa;
	--ls-reading-muted: rgba(245, 247, 250, 0.64);
	--ls-reading-border: rgba(245, 247, 250, 0.13);
	--ls-reading-accent: var(--ls-color-electric-soft);
	background:
		linear-gradient(180deg, rgba(0, 157, 255, 0.08), transparent 22rem),
		var(--ls-reading-bg);
	color: var(--ls-reading-ink);
	min-height: 100vh;
	overflow-x: clip;
	color-scheme: dark;
}

.ls-reading-shell {
	box-sizing: border-box;
	width: min(100% - (var(--ls-gutter) * 2), 1320px);
	margin-inline: auto;
}

.ls-reading-hero {
	padding-block: clamp(7rem, 13vw, 11rem) clamp(3rem, 7vw, 5rem);
	border-bottom: 1px solid var(--ls-reading-border);
}

.ls-reading-hero__grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.38fr);
	gap: clamp(2rem, 6vw, 5rem);
	align-items: end;
}

.ls-reading-kicker,
.ls-reading-meta {
	font-family: var(--ls-font-mono);
	font-size: 0.76rem;
	font-weight: 780;
	letter-spacing: 0.12em;
	line-height: 1.4;
	text-transform: uppercase;
}

.ls-reading-kicker {
	margin: 0 0 1.2rem;
	color: var(--ls-reading-accent);
}

.ls-reading-title {
	max-width: 11ch;
	margin: 0;
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-display);
	font-size: clamp(4rem, 11vw, 10.5rem);
	font-weight: 850;
	letter-spacing: 0;
	line-height: 0.86;
	text-wrap: balance;
}

.ls-reading-subtitle {
	max-width: 44rem;
	margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
	color: var(--ls-reading-muted);
	font-size: clamp(1.2rem, 1rem + 0.8vw, 1.62rem);
	line-height: 1.45;
}

.ls-reading-hero__panel {
	display: grid;
	gap: 1.2rem;
	padding: clamp(1.2rem, 3vw, 1.8rem);
	border: 1px solid var(--ls-reading-border);
	border-radius: var(--ls-radius-s);
	background:
		linear-gradient(180deg, rgba(245, 247, 250, 0.055), rgba(245, 247, 250, 0.018)),
		var(--ls-reading-paper);
	box-shadow: var(--ls-shadow-m);
}

.ls-reading-hero__panel dl {
	display: grid;
	gap: 1rem;
	margin: 0;
}

.ls-reading-hero__panel div {
	display: grid;
	gap: 0.25rem;
}

.ls-reading-hero__panel dt {
	color: var(--ls-reading-muted);
	font-family: var(--ls-font-mono);
	font-size: 0.68rem;
	font-weight: 780;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.ls-reading-hero__panel dd {
	margin: 0;
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-display);
	font-size: 1.08rem;
	font-weight: 780;
}

.ls-reading-book {
	padding-block: clamp(2rem, 6vw, 4rem);
	border-bottom: 1px solid var(--ls-reading-border);
}

.ls-reading-book__grid {
	display: grid;
	grid-template-columns: minmax(0, 0.62fr) minmax(0, 0.38fr);
	gap: var(--ls-grid-gap);
	align-items: stretch;
}

.ls-reading-book__copy {
	display: grid;
	align-content: end;
	gap: 1rem;
	padding: clamp(1.5rem, 4vw, 3rem);
	border: 1px solid var(--ls-reading-border);
	border-radius: var(--ls-radius-s);
	background:
		linear-gradient(135deg, rgba(0, 111, 255, 0.12), transparent 44%),
		var(--ls-reading-paper);
}

.ls-reading-book__copy h2 {
	max-width: 10ch;
	margin: 0;
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-display);
	font-size: clamp(2.4rem, 6vw, 5.8rem);
	line-height: 0.92;
	text-wrap: balance;
}

.ls-reading-book__copy p {
	max-width: 34rem;
	margin: 0;
	color: var(--ls-reading-muted);
	font-size: var(--ls-type-lead);
	line-height: 1.5;
}

.ls-reading-book__plates {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
	gap: var(--ls-grid-gap);
}

.ls-reading-plate {
	position: relative;
	overflow: hidden;
	margin: 0;
	border: 1px solid rgba(0, 111, 255, 0.18);
	border-radius: var(--ls-radius-s);
	background: #030406;
	box-shadow: 0 30px 90px rgba(16, 20, 25, 0.16);
}

.ls-reading-plate--cover {
	grid-row: span 2;
}

.ls-reading-plate img {
	display: block;
	width: 100%;
	height: 100%;
	aspect-ratio: 2 / 3;
	object-fit: cover;
}

.ls-reading-plate:not(.ls-reading-plate--cover) img {
	aspect-ratio: 2 / 3;
}

.ls-reading-plate figcaption {
	position: absolute;
	inset: auto 0 0;
	padding: 0.85rem;
	background: linear-gradient(180deg, transparent, rgba(3, 4, 6, 0.82));
	color: rgba(245, 247, 250, 0.78);
	font-family: var(--ls-font-mono);
	font-size: 0.66rem;
	font-weight: 760;
	letter-spacing: 0.1em;
	text-transform: uppercase;
}

.ls-reading-layout {
	display: grid;
	grid-template-columns: minmax(11rem, 0.24fr) minmax(0, 46rem) minmax(11rem, 0.24fr);
	gap: clamp(1.5rem, 4vw, 4rem);
	align-items: start;
	padding-block: clamp(3rem, 8vw, 6rem);
}

.ls-reading-toc {
	position: sticky;
	top: 6.5rem;
	display: grid;
	gap: 0.75rem;
	color: var(--ls-reading-muted);
	font-size: 0.86rem;
}

.ls-reading-toc strong {
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-mono);
	font-size: 0.7rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.ls-reading-toc a,
.ls-reading-toc span {
	color: inherit;
	text-decoration: none;
}

.ls-reading-toc a:hover {
	color: var(--ls-reading-accent);
	text-decoration: none;
}

.ls-reading-copy {
	position: relative;
	padding: clamp(2rem, 5vw, 4rem);
	border: 1px solid var(--ls-reading-border);
	border-radius: var(--ls-radius-s);
	background: var(--ls-reading-paper);
	box-shadow: 0 30px 90px rgba(16, 20, 25, 0.09);
}

.ls-reading-copy::before {
	content: "";
	position: absolute;
	inset: 0 0 auto;
	height: 1px;
	background: linear-gradient(90deg, transparent, rgba(0, 111, 255, 0.46), transparent);
}

.ls-reading-copy h2 {
	margin: 0 0 1.5rem;
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-display);
	font-size: clamp(2rem, 4vw, 3.6rem);
	line-height: 0.98;
	text-wrap: balance;
}

.ls-reading-copy p,
.ls-reading-copy li {
	color: var(--ls-reading-ink);
	font-family: Georgia, "Times New Roman", serif;
	font-size: clamp(1.12rem, 1rem + 0.35vw, 1.34rem);
	line-height: 1.78;
}

.ls-reading-copy p {
	margin-block: 0 1.35em;
}

.ls-reading-copy .wp-block-post-content {
	margin-top: 2rem;
}

.ls-reading-chapter-label {
	margin: 0 0 0.75rem;
	color: var(--ls-reading-accent);
	font-family: var(--ls-font-mono);
	font-size: 0.74rem;
	font-weight: 780;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.ls-reading-content p:first-of-type::first-letter {
	float: left;
	padding: 0.12em 0.14em 0 0;
	color: var(--ls-reading-accent);
	font-family: var(--ls-font-display);
	font-size: 4.8em;
	font-weight: 850;
	line-height: 0.76;
}

.ls-reading-pullquote {
	margin: clamp(2rem, 5vw, 3.5rem) 0;
	padding: clamp(1.25rem, 4vw, 2.4rem);
	border-block: 1px solid var(--ls-reading-border);
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-display);
	font-size: clamp(2rem, 5vw, 4.25rem);
	font-weight: 820;
	letter-spacing: 0;
	line-height: 0.98;
	text-align: center;
	text-wrap: balance;
}

.ls-reading-pullquote--quiet {
	font-size: clamp(1.55rem, 3vw, 2.65rem);
	line-height: 1.08;
}

.ls-reading-placeholder {
	margin-block: 2rem;
	padding: 1.25rem;
	border: 1px dashed rgba(0, 111, 255, 0.34);
	border-radius: var(--ls-radius-s);
	background:
		linear-gradient(135deg, rgba(0, 111, 255, 0.08), transparent 46%),
		rgba(0, 111, 255, 0.035);
	color: var(--ls-reading-muted);
	font-family: var(--ls-font-text);
}

.ls-reading-placeholder strong {
	display: block;
	margin-bottom: 0.35rem;
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-mono);
	font-size: 0.72rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.ls-reading-note {
	display: grid;
	gap: 0.85rem;
	align-self: start;
	padding: 1rem;
	border-left: 1px solid var(--ls-reading-border);
	color: var(--ls-reading-muted);
	font-size: 0.86rem;
	line-height: 1.55;
}

.ls-reading-note strong {
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-mono);
	font-size: 0.7rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
}

.ls-reading-end {
	padding-block: 0 clamp(4rem, 9vw, 7rem);
}

.ls-reading-end__grid {
	display: grid;
	grid-template-columns: minmax(0, 0.66fr) minmax(16rem, 0.34fr);
	gap: var(--ls-grid-gap);
}

.ls-reading-cta,
.ls-reading-soon {
	padding: clamp(1.5rem, 4vw, 3rem);
	border: 1px solid var(--ls-reading-border);
	border-radius: var(--ls-radius-s);
	background:
		linear-gradient(180deg, rgba(245, 247, 250, 0.055), rgba(245, 247, 250, 0.018)),
		var(--ls-reading-paper);
	box-shadow: var(--ls-shadow-m);
}

.ls-reading-cta h2,
.ls-reading-soon h2 {
	margin: 0;
	color: var(--ls-reading-ink);
	font-family: var(--ls-font-display);
	font-size: clamp(2rem, 4vw, 4rem);
	line-height: 1;
}

.ls-reading-cta p,
.ls-reading-soon p {
	color: var(--ls-reading-muted);
}

.ls-reading-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 1.5rem;
}

.ls-reading-actions .ls-btn--outline {
	border-color: var(--ls-reading-border);
	background: rgba(245, 247, 250, 0.05);
	color: var(--ls-reading-ink);
}

.ls-reading-soon ul {
	display: grid;
	gap: 0.65rem;
	margin: 1rem 0 0;
	padding: 0;
	list-style: none;
	color: var(--ls-reading-muted);
}

.ls-reading-soon li {
	padding-top: 0.65rem;
	border-top: 1px solid var(--ls-reading-border);
}

@media (prefers-color-scheme: dark) {
	.ls-reading-page {
		--ls-reading-bg: #030406;
		--ls-reading-paper: #080b0f;
		--ls-reading-ink: #f5f7fa;
		--ls-reading-muted: rgba(245, 247, 250, 0.64);
		--ls-reading-border: rgba(245, 247, 250, 0.13);
		--ls-reading-accent: var(--ls-color-electric-soft);
		background:
			linear-gradient(180deg, rgba(0, 157, 255, 0.08), transparent 22rem),
			var(--ls-reading-bg);
	}

	.ls-reading-hero__panel,
	.ls-reading-book__copy,
	.ls-reading-copy,
	.ls-reading-cta,
	.ls-reading-soon {
		background:
			linear-gradient(180deg, rgba(245, 247, 250, 0.055), rgba(245, 247, 250, 0.018)),
			var(--ls-reading-paper);
		box-shadow: var(--ls-shadow-m);
	}

	.ls-reading-actions .ls-btn--outline {
		background: rgba(245, 247, 250, 0.05);
		color: var(--ls-reading-ink);
	}
}

@media (max-width: 1080px) {
	.ls-reading-hero__grid,
	.ls-reading-book__grid,
	.ls-reading-layout,
	.ls-reading-end__grid {
		grid-template-columns: 1fr;
	}

	.ls-reading-book__plates {
		grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
	}

	.ls-reading-toc,
	.ls-reading-note {
		position: relative;
		top: auto;
	}

	.ls-reading-toc {
		order: -1;
		padding: 1rem;
		border: 1px solid var(--ls-reading-border);
		border-radius: var(--ls-radius-s);
		background: rgba(8, 11, 15, 0.82);
	}
}

@media (min-width: 768px) and (max-width: 1366px) {
	.ls-reading-page,
	.ls-reading-page .wp-block-group,
	.ls-reading-page .ls-reading-shell {
		background-color: var(--ls-reading-bg);
	}
}

@media (max-width: 620px) {
	.ls-reading-title {
		font-size: clamp(3.4rem, 18vw, 5.6rem);
	}

	.ls-reading-book__plates {
		grid-template-columns: 1fr;
	}

	.ls-reading-plate--cover {
		grid-row: auto;
	}

	.ls-reading-copy {
		padding: 1.35rem;
	}

	.ls-reading-copy p,
	.ls-reading-copy li {
		font-size: 1.08rem;
		line-height: 1.72;
	}

	.ls-reading-actions {
		display: grid;
	}
}