/**
 * Shared long-form reading styles (Phase 9).
 * Tokens remain in theme.json; this file refines article rhythm.
 */

/* --- Article shell --- */

.av-article__header {
	margin-bottom: var(--wp--preset--spacing--lg);
}

.av-article__header--compact {
	margin-bottom: var(--wp--preset--spacing--md);
}

.av-article__body .wp-block-post-title {
	margin-top: 0;
	margin-bottom: var(--wp--preset--spacing--sm);
}

.av-article-intro,
.av-article .is-style-intro {
	color: var(--wp--preset--color--muted);
	font-size: clamp(1.125rem, 1.05rem + 0.25vw, 1.25rem);
	line-height: 1.55;
	margin: 0 0 var(--wp--preset--spacing--sm);
}

.av-reading-time {
	margin: 0;
}

.av-article__featured:not(:has(img)) {
	display: none;
}

.av-article__featured img {
	border-radius: var(--wp--custom--border--radius--sm, 0.25rem);
	display: block;
	height: auto;
	max-width: 100%;
}

.av-article__footer {
	margin-top: var(--wp--preset--spacing--2xl);
}

.av-article__footer .av-lesson-nav,
.av-article__footer .av-related-research,
.av-article__footer .av-related-news {
	border-top: 1px solid var(--wp--preset--color--border);
	margin-top: 0;
	padding-top: var(--wp--preset--spacing--2xl);
}

.av-article__footer .av-related-news {
	padding-top: var(--wp--preset--spacing--xl);
}

/* --- Content measure & prose ---
 * Article body sits in .av-site-container (~1120px).
 * Normal prose is left-anchored at .av-reading-max (~720px).
 * .alignwide / tables / figures may expand to the site container.
 */

.av-article__content,
.av-page__content,
.av-page .wp-block-post-content {
	font-size: 1.0625rem;
	line-height: 1.75;
}

.av-article__content > :where(:not(.alignwide):not(.alignfull)),
.av-page__content > :where(:not(.alignwide):not(.alignfull)),
.av-page .wp-block-post-content > :where(:not(.alignwide):not(.alignfull)) {
	box-sizing: border-box;
	max-width: var(--av-reading-max, var(--wp--style--global--content-size));
}

.av-article__content > .alignwide,
.av-article__content > .alignfull,
.av-page__content > .alignwide,
.av-page__content > .alignfull,
.av-page .wp-block-post-content > .alignwide,
.av-page .wp-block-post-content > .alignfull {
	max-width: 100%;
}

.av-article__content > *:first-child,
.av-page__content > *:first-child,
.av-page .wp-block-post-content > *:first-child {
	margin-top: 0;
}

.av-article__content p,
.av-page .wp-block-post-content p {
	margin-top: 0;
	margin-bottom: 1.25em;
}

.av-article__content a:not(.wp-element-button),
.av-page .wp-block-post-content a:not(.wp-element-button) {
	color: var(--wp--preset--color--accent);
	text-decoration: underline;
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
}

.av-article__content a:not(.wp-element-button):hover,
.av-page .wp-block-post-content a:not(.wp-element-button):hover {
	color: var(--wp--preset--color--contrast);
}

/* --- Heading rhythm --- */

.av-article__content h2[id],
.av-article__content h3[id],
.av-page .wp-block-post-content h2[id],
.av-page .wp-block-post-content h3[id] {
	scroll-margin-top: 1.25rem;
}

.av-article__content h2,
.av-page .wp-block-post-content h2 {
	font-size: clamp(1.375rem, 1.2rem + 0.6vw, 1.75rem);
	letter-spacing: -0.02em;
	line-height: 1.25;
	margin-top: 2.5em;
	margin-bottom: 0.65em;
}

.av-article__content h3,
.av-page .wp-block-post-content h3 {
	font-size: clamp(1.1875rem, 1.1rem + 0.3vw, 1.375rem);
	letter-spacing: -0.015em;
	line-height: 1.3;
	margin-top: 1.85em;
	margin-bottom: 0.5em;
}

.av-article__content h4,
.av-page .wp-block-post-content h4 {
	font-size: 1.0625rem;
	letter-spacing: -0.01em;
	line-height: 1.35;
	margin-top: 1.5em;
	margin-bottom: 0.45em;
}

.av-article__content h2 + *,
.av-article__content h3 + *,
.av-article__content h4 + *,
.av-page .wp-block-post-content h2 + *,
.av-page .wp-block-post-content h3 + *,
.av-page .wp-block-post-content h4 + * {
	margin-top: 0;
}

/* Pattern section titles (editorial kickers as H2) */

.av-pattern-heading,
.av-research-pattern h2.av-pattern-heading,
.av-news-pattern h2.av-pattern-heading {
	color: var(--wp--preset--color--accent);
	font-family: var(--wp--preset--font-family--sans);
	font-size: var(--wp--preset--font-size--small);
	font-weight: 600;
	letter-spacing: 0.08em;
	line-height: 1.4;
	margin-top: 0;
	margin-bottom: var(--wp--preset--spacing--sm);
	text-transform: uppercase;
}

.av-research-pattern,
.av-news-pattern {
	border-top: 1px solid var(--wp--preset--color--border);
	margin: var(--wp--preset--spacing--2xl) 0;
	padding-top: var(--wp--preset--spacing--lg);
}

.av-news-pattern {
	margin: var(--wp--preset--spacing--xl) 0;
	padding-top: var(--wp--preset--spacing--md);
}

/* --- Lists --- */

.av-article__content ul,
.av-article__content ol,
.av-page .wp-block-post-content ul,
.av-page .wp-block-post-content ol {
	margin: 0 0 1.35em;
	padding-left: 1.35em;
}

.av-article__content li,
.av-page .wp-block-post-content li {
	margin-bottom: 0.45em;
	padding-left: 0.15em;
}

.av-article__content li > ul,
.av-article__content li > ol,
.av-page .wp-block-post-content li > ul,
.av-page .wp-block-post-content li > ol {
	margin-top: 0.45em;
	margin-bottom: 0.45em;
}

/* --- Quotes --- */

.av-article__content .wp-block-quote,
.av-page .wp-block-post-content .wp-block-quote {
	border-left: 3px solid var(--wp--preset--color--accent);
	color: var(--wp--preset--color--contrast);
	font-size: 1.125rem;
	line-height: 1.55;
	margin: 2em 0;
	padding: 0.15em 0 0.15em 1.15em;
}

.av-article__content .wp-block-quote p,
.av-page .wp-block-post-content .wp-block-quote p {
	margin-bottom: 0.65em;
}

.av-article__content .wp-block-quote cite,
.av-page .wp-block-post-content .wp-block-quote cite {
	color: var(--wp--preset--color--muted);
	font-family: var(--wp--preset--font-family--sans);
	font-size: var(--wp--preset--font-size--small);
	font-style: normal;
}

/* --- Code --- */

.av-article__content :not(pre) > code,
.av-page .wp-block-post-content :not(pre) > code {
	background-color: var(--wp--preset--color--surface);
	border: 1px solid var(--wp--preset--color--border);
	border-radius: 0.2rem;
	font-family: var(--wp--preset--font-family--mono);
	font-size: 0.9em;
	padding: 0.1em 0.35em;
}

.av-article__content .wp-block-code,
.av-article__content .wp-block-preformatted,
.av-page .wp-block-post-content .wp-block-code,
.av-page .wp-block-post-content .wp-block-preformatted {
	background-color: var(--wp--preset--color--surface);
	border: 1px solid var(--wp--preset--color--border);
	border-radius: var(--wp--custom--border--radius--sm, 0.25rem);
	font-family: var(--wp--preset--font-family--mono);
	font-size: 0.875rem;
	line-height: 1.6;
	margin: 1.75em 0;
	max-width: 100%;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	padding: var(--wp--preset--spacing--md);
}

.av-article__content .wp-block-code code {
	background: transparent;
	border: 0;
	font-size: inherit;
	padding: 0;
}

/* --- Tables --- */

.av-article__content .wp-block-table,
.av-page .wp-block-post-content .wp-block-table {
	margin: 2em 0;
	max-width: 100%;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
}

.av-article__content .wp-block-table table,
.av-page .wp-block-post-content .wp-block-table table {
	border-collapse: collapse;
	min-width: 100%;
	width: max-content;
	max-width: 100%;
}

.av-article__content .wp-block-table th,
.av-article__content .wp-block-table td,
.av-page .wp-block-post-content .wp-block-table th,
.av-page .wp-block-post-content .wp-block-table td {
	border: 1px solid var(--wp--preset--color--border);
	padding: 0.55rem 0.8rem;
	vertical-align: top;
}

.av-article__content .wp-block-table th,
.av-page .wp-block-post-content .wp-block-table th {
	background-color: var(--wp--preset--color--surface);
	font-family: var(--wp--preset--font-family--sans);
	font-size: var(--wp--preset--font-size--small);
	font-weight: 600;
	text-align: left;
}

.av-article__content .wp-block-table figcaption,
.av-page .wp-block-post-content .wp-block-table figcaption,
.av-article__content .wp-block-image figcaption,
.av-page .wp-block-post-content .wp-block-image figcaption {
	color: var(--wp--preset--color--muted);
	font-family: var(--wp--preset--font-family--sans);
	font-size: var(--wp--preset--font-size--small);
	line-height: 1.45;
	margin-top: var(--wp--preset--spacing--sm);
}

/* --- Images --- */

.av-article__content .wp-block-image,
.av-page .wp-block-post-content .wp-block-image {
	margin: 2em 0 1.25em;
}

.av-article__content .wp-block-image img,
.av-page .wp-block-post-content .wp-block-image img {
	height: auto;
	max-width: 100%;
}

.av-article__content .alignwide,
.av-page__content .alignwide,
.av-page .wp-block-post-content .alignwide {
	max-width: var(--av-site-max, var(--wp--style--global--wide-size));
	width: 100%;
}

/* --- Callouts --- */

.av-article__content .is-style-callout,
.av-page .wp-block-post-content .is-style-callout,
.av-article__content .av-callout {
	background-color: var(--wp--preset--color--accent-soft);
	border: 1px solid var(--wp--preset--color--border);
	border-radius: var(--wp--custom--border--radius--sm, 0.25rem);
	margin: 1.75em 0;
	padding: var(--wp--preset--spacing--lg);
}

.av-article__content .is-style-callout > :first-child,
.av-article__content .av-callout > :first-child {
	margin-top: 0;
}

.av-article__content .is-style-callout > :last-child,
.av-article__content .av-callout > :last-child {
	margin-bottom: 0;
}

/* --- TOC --- */

.av-toc {
	border-top: 1px solid var(--wp--preset--color--border);
	border-bottom: 1px solid var(--wp--preset--color--border);
	margin: 0 0 var(--wp--preset--spacing--2xl);
	padding: var(--wp--preset--spacing--lg) 0;
}

.av-toc__label {
	color: var(--wp--preset--color--muted);
	font-family: var(--wp--preset--font-family--sans);
	font-size: var(--wp--preset--font-size--small);
	font-weight: 600;
	letter-spacing: 0.04em;
	margin: 0 0 var(--wp--preset--spacing--sm);
	text-transform: uppercase;
}

.av-toc__list {
	list-style: none;
	margin: 0;
	padding: 0;
}

.av-toc__item {
	margin: 0;
}

.av-toc__item a {
	color: var(--wp--preset--color--contrast);
	display: block;
	font-family: var(--wp--preset--font-family--sans);
	font-size: var(--wp--preset--font-size--small);
	line-height: 1.4;
	min-height: 2.25rem;
	padding: 0.35rem 0;
	text-decoration: none;
}

.av-toc__item a:hover {
	color: var(--wp--preset--color--accent);
}

.av-toc__item--h3 {
	padding-left: 1rem;
}

.av-toc__item--h3 a {
	color: var(--wp--preset--color--muted);
	font-weight: 400;
}

/* --- Mobile --- */

@media (max-width: 600px) {
	.av-article__content,
	.av-page .wp-block-post-content {
		font-size: 1.0625rem;
		line-height: 1.7;
	}

	.av-article__content h2,
	.av-page .wp-block-post-content h2 {
		margin-top: 2em;
	}

	.av-toc__item--h3 {
		padding-left: 0.75rem;
	}
}