/**
 * Text Block widget — long-form reading typography + table of contents.
 *
 * Extends .manvan-prose from core.css. Margins are reset first because the
 * theme gives bare elements (p, ul, h2…) their own margins.
 *
 * @package ManVan
 */

.manvan-text-block {
	--manvan-tb-measure: 72ch;
	--manvan-tb-toc: 16rem;
	--manvan-tb-gap: clamp(2.5rem, 1rem + 3vw, 4.5rem);
	--manvan-tb-anchor-offset: calc(var(--manvan-header-height, 80px) + 1.5rem);
}

.manvan-text-block--wide {
	--manvan-tb-measure: 60rem;
}

.manvan-text-block--full {
	--manvan-tb-measure: 100%;
}

/* ---- Reading column ------------------------------------------------------ */

.manvan-text-block__body {
	width: 100%;
	max-width: var(--manvan-tb-measure);
	margin-inline: auto;
	font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
	line-height: 1.75;
	color: var(--manvan-text);
	overflow-wrap: break-word;
}

.manvan-text-block__body > *,
.manvan-text-block__header > * {
	margin-top: 0;
	margin-bottom: 0;
}

.manvan-text-block__body > * + *,
.manvan-text-block__body div > * + * {
	margin-top: 1.1em;
}

.manvan-text-block .manvan-prose h1 {
	margin: 0 0 0.6em;
	font-family: var(--manvan-font-heading);
	font-size: var(--manvan-fs-h1);
	font-weight: 800;
	line-height: 1.08;
	letter-spacing: -0.03em;
	color: var(--manvan-heading);
	text-wrap: balance;
}

.manvan-text-block__body h2,
.manvan-text-block__body h3,
.manvan-text-block__body h4 {
	margin-bottom: 0;
	font-family: var(--manvan-font-heading);
	color: var(--manvan-heading);
	text-wrap: balance;
	scroll-margin-top: var(--manvan-tb-anchor-offset);
}

.manvan-text-block__body h2 {
	font-size: clamp(1.5rem, 1.3rem + 0.9vw, 2rem);
	font-weight: 800;
	line-height: 1.2;
	letter-spacing: -0.022em;
}

.manvan-text-block__body > h2:not(:first-child),
.manvan-text-block__body div > h2:not(:first-child) {
	margin-top: 2.25em;
}

.manvan-text-block__body h3 {
	font-size: clamp(1.15rem, 1.08rem + 0.35vw, 1.3rem);
	font-weight: 700;
	line-height: 1.3;
	letter-spacing: -0.01em;
}

.manvan-text-block__body > h3:not(:first-child),
.manvan-text-block__body div > h3:not(:first-child) {
	margin-top: 1.75em;
}

.manvan-text-block__body h4 {
	font-size: 1.0625rem;
	font-weight: 700;
}

.manvan-text-block__body h2 + *,
.manvan-text-block__body h3 + *,
.manvan-text-block__body h4 + * {
	margin-top: 0.6em;
}

.manvan-text-block__body p {
	margin-bottom: 0;
}

.manvan-text-block__body strong,
.manvan-text-block__body b {
	font-weight: 700;
	color: var(--manvan-heading);
}

.manvan-text-block__body a {
	color: var(--manvan-brand);
	font-weight: 600;
	text-decoration: underline;
	text-decoration-thickness: 1px;
	text-underline-offset: 3px;
	transition: color 0.2s ease;
}

.manvan-text-block__body a:hover {
	color: var(--manvan-brand-hover);
}

.manvan-text-block__body ul,
.manvan-text-block__body ol {
	margin-bottom: 0;
	padding-left: 1.4em;
}

.manvan-text-block__body li {
	margin: 0;
	padding-left: 0.25em;
}

.manvan-text-block__body li + li {
	margin-top: 0.5em;
}

.manvan-text-block__body li::marker {
	color: var(--manvan-brand);
	font-weight: 700;
}

.manvan-text-block__body blockquote {
	margin-inline: 0;
	padding: 1.25rem 1.5rem;
	border: 0;
	border-left: 4px solid var(--manvan-brand);
	border-radius: 0 var(--manvan-radius-sm) var(--manvan-radius-sm) 0;
	background-color: var(--manvan-bg-alt);
	font-style: normal;
	color: var(--manvan-heading);
}

.manvan-text-block__body hr {
	height: 1px;
	margin-block: 2.5em;
	border: 0;
	background-color: var(--manvan-border);
}

.manvan-text-block__body img {
	border-radius: var(--manvan-radius);
}

.manvan-text-block__body table {
	width: 100%;
	border: 1px solid var(--manvan-border);
	border-collapse: separate;
	border-spacing: 0;
	border-radius: var(--manvan-radius-sm);
	overflow: hidden;
	font-size: 0.9375rem;
	line-height: 1.5;
}

.manvan-text-block__body th,
.manvan-text-block__body td {
	padding: 0.75rem 1rem;
	border-bottom: 1px solid var(--manvan-border);
	text-align: left;
	vertical-align: top;
}

.manvan-text-block__body th {
	background-color: var(--manvan-bg-alt);
	font-weight: 700;
	color: var(--manvan-heading);
}

.manvan-text-block__body tr:last-child td {
	border-bottom: 0;
}

/* ---- Header (lifted H1 when there is a contents sidebar) ----------------- */

.manvan-text-block__header {
	max-width: var(--manvan-tb-measure);
	margin: 0 auto clamp(1.5rem, 1rem + 2vw, 2.5rem);
}

/* ---- Table of contents --------------------------------------------------- */

.manvan-text-block__toc {
	max-width: var(--manvan-tb-measure);
	margin: 0 auto 2rem;
}

.manvan-text-block__toc-inner {
	border: 1px solid var(--manvan-border);
	border-radius: var(--manvan-radius);
	background-color: var(--manvan-surface);
	box-shadow: var(--manvan-shadow-sm);
}

.manvan-text-block__toc-title {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	min-height: 52px;
	padding: 0.875rem 1.25rem;
	font-size: var(--manvan-fs-xs);
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--manvan-heading);
	cursor: pointer;
	list-style: none;
}

.manvan-text-block__toc-title::-webkit-details-marker {
	display: none;
}

.manvan-text-block__toc-chevron {
	display: block;
	flex: none;
	width: 1.125rem;
	height: 1.125rem;
	color: var(--manvan-muted);
	transition: transform 0.2s var(--manvan-ease);
}

.manvan-text-block__toc-inner[open] .manvan-text-block__toc-chevron {
	transform: rotate(180deg);
}

.manvan-text-block__toc-list,
.manvan-text-block__toc-sub {
	margin: 0;
	padding: 0;
	list-style: none;
}

.manvan-text-block__toc-list {
	padding: 0 0.75rem 0.875rem;
}

.manvan-text-block__toc-item {
	margin: 0;
}

.manvan-text-block__toc-sub {
	margin: 0.125rem 0 0.25rem 0.875rem;
}

.manvan-text-block__toc-link {
	display: block;
	padding: 0.45rem 0.625rem 0.45rem 0.75rem;
	border-left: 2px solid transparent;
	border-radius: 0 8px 8px 0;
	font-size: 0.9375rem;
	font-weight: 500;
	line-height: 1.4;
	color: var(--manvan-muted);
	text-decoration: none;
	transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.manvan-text-block__toc-item--h3 .manvan-text-block__toc-link {
	font-size: 0.875rem;
}

.manvan-text-block__toc-link:hover {
	background-color: var(--manvan-bg-alt);
	color: var(--manvan-heading);
}

.manvan-text-block__toc-link.is-active {
	border-left-color: var(--manvan-brand);
	background-color: var(--manvan-brand-soft);
	color: var(--manvan-brand);
	font-weight: 600;
}

/* ---- Mobile: wide tables scroll sideways --------------------------------- */

@media (max-width: 767px) {
	.manvan-text-block__body table {
		display: block;
		overflow-x: auto;
		-webkit-overflow-scrolling: touch;
	}
}

/* ---- Desktop: sticky contents sidebar ------------------------------------ */

@media (min-width: 1025px) {
	.manvan-text-block--has-toc .manvan-text-block__layout {
		display: grid;
		grid-template-columns: var(--manvan-tb-toc) minmax(0, var(--manvan-tb-measure));
		justify-content: center;
		align-items: start;
		gap: var(--manvan-tb-gap);
	}

	.manvan-text-block--has-toc .manvan-text-block__header {
		max-width: calc(var(--manvan-tb-toc) + var(--manvan-tb-gap) + var(--manvan-tb-measure));
	}

	.manvan-text-block--has-toc .manvan-text-block__toc {
		position: sticky;
		top: var(--manvan-tb-anchor-offset);
		max-height: calc(100vh - var(--manvan-tb-anchor-offset) - 1.5rem);
		margin: 0;
		overflow-y: auto;
	}

	.manvan-text-block--has-toc .manvan-text-block__toc-inner {
		border: 0;
		background: none;
		box-shadow: none;
	}

	.manvan-text-block--has-toc .manvan-text-block__toc-title {
		min-height: 0;
		padding: 0 0 0.875rem 0.75rem;
	}

	/* Opened by text-block.js on desktop; the toggle is only needed on small screens. */
	.manvan-text-block--has-toc .manvan-text-block__toc-inner[open] .manvan-text-block__toc-title {
		cursor: default;
		pointer-events: none;
	}

	.manvan-text-block--has-toc .manvan-text-block__toc-inner[open] .manvan-text-block__toc-chevron {
		display: none;
	}

	.manvan-text-block--has-toc .manvan-text-block__toc-list {
		padding: 0;
		border-left: 1px solid var(--manvan-border);
	}

	.manvan-text-block--has-toc .manvan-text-block__toc-link {
		margin-left: -1px;
	}

	.manvan-text-block--has-toc .manvan-text-block__body {
		margin-inline: 0;
	}
}