/*
Theme Name: IT Blog Mag
Description: Block theme สำหรับบล็อก IT ภาษาไทย — หน้าแรกแบบแมกกาซีน หน้าอ่านบทความสอนที่เน้นการอ่านและโค้ด มีสารบัญอัตโนมัติ ไฮไลต์โค้ด โหมดมืด เวลาอ่าน และวันที่อัปเดตล่าสุด
Version: 0.1.3
Requires at least: 6.8
Tested up to: 7.1
Requires PHP: 7.4
License: GPLv2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: itblog-mag
*/

/* =========================================================
   Tokens & dark mode
   (colours come from theme.json; dark mode swaps the same variables)
   ========================================================= */
:root {
	--itb-radius: 10px;
	--itb-shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
	--itb-on-accent: #ffffff;
	--itb-c-note: #1d4ed8;
	--itb-c-tip: #15803d;
	--itb-c-warning: #b45309;
	--itb-c-danger: #b91c1c;
}

html[data-theme="dark"],
html[data-theme="dark"] body {
	--wp--preset--color--base: #181b21;
	--wp--preset--color--surface: #0f1115;
	--wp--preset--color--contrast: #e8eaed;
	--wp--preset--color--muted: #a9b1bd;
	--wp--preset--color--border: #2a2f38;
	--wp--preset--color--accent: #ff7a45;
	--wp--preset--color--accent-strong: #ff8a5c;
	--wp--preset--color--code-bg: #0b1020;
	--itb-on-accent: #1a1005;
	--itb-shadow: 0 0 0 1px rgba(255, 255, 255, .04);
	--itb-c-note: #60a5fa;
	--itb-c-tip: #4ade80;
	--itb-c-warning: #fbbf24;
	--itb-c-danger: #f87171;
}

html { color-scheme: light; scroll-padding-top: 1rem; }
html[data-theme="dark"] { color-scheme: dark; }

@media (prefers-reduced-motion: no-preference) {
	html { scroll-behavior: smooth; }
}

:focus-visible {
	outline: 2px solid var(--wp--preset--color--accent-strong);
	outline-offset: 2px;
}

/* =========================================================
   Header / navigation / footer
   ========================================================= */
.itb-header,
.itb-footer,
.itb-main {
	padding-inline: clamp(1rem, 3vw, 1.5rem);
}

.itb-header {
	background: var(--wp--preset--color--base);
	border-top: 3px solid var(--wp--preset--color--accent);
	border-bottom: 1px solid var(--wp--preset--color--border);
}

.itb-header > *,
.itb-footer > * { margin-block: 0; }
/* Top row: [ empty | logo (centred) | search + theme toggle ] */
.itb-header__inner {
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
	align-items: center;
	gap: 1rem;
	padding-block: .75rem;
}
.itb-header__brand {
	grid-column: 2;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0;
}
.itb-header__logo { margin: 0; line-height: 0; }
.itb-header__logo a { display: block; }
.itb-header__logo img { display: block; max-width: 100%; height: auto; }
.itb-header__title { margin: 0; font-size: 1.5rem; font-weight: 700; line-height: 1.2; text-align: center; }
.itb-header__title a { color: var(--wp--preset--color--contrast); text-decoration: none; }
/* When a logo is set, the site title stays for screen readers/SEO but is not shown. */
.itb-header__brand:has(.wp-block-site-logo img) .itb-header__title {
	position: absolute;
	width: 1px;
	height: 1px;
	margin: -1px;
	overflow: hidden;
	clip-path: inset(50%);
	white-space: nowrap;
}
.itb-header__tools { grid-column: 3; justify-self: end; gap: .5rem; margin: 0; }
.itb-nav-row { border-top: 1px solid var(--wp--preset--color--border); padding-block: .3rem; }

.itb-header .wp-block-navigation { font-weight: 500; }
.itb-header .wp-block-navigation a,
.itb-footer .wp-block-navigation a { color: var(--wp--preset--color--contrast); text-decoration: none; }
.itb-header .wp-block-navigation a:hover,
.itb-footer .wp-block-navigation a:hover { color: var(--wp--preset--color--accent-strong); }
.wp-block-navigation .current-menu-item > a { box-shadow: inset 0 -2px 0 var(--wp--preset--color--accent); }
.wp-block-navigation__responsive-container.is-menu-open {
	background: var(--wp--preset--color--base);
	color: var(--wp--preset--color--contrast);
}

.itb-header .wp-block-search { margin: 0; font-size: .9375rem; }
.itb-header .wp-block-search__inside-wrapper { align-items: center; gap: .5rem; }
.itb-header .wp-block-search__button {
	background: transparent;
	color: var(--wp--preset--color--contrast);
	border: 1px solid var(--wp--preset--color--border);
	border-radius: 50%;
	width: 40px;
	height: 40px;
	min-width: 40px;
	padding: 0;
	margin: 0;
}
/* Expanded search field: same height as the round buttons, not a big text box. */
.itb-header .wp-block-search__input {
	height: 40px;
	width: 220px;
	min-width: 0;
	padding: 0 1rem;
	font-size: .9375rem;
	border-radius: 999px;
}
.itb-header .wp-block-search__input:focus-visible {
	outline: 2px solid var(--wp--preset--color--accent-strong);
	outline-offset: 0;
}

.itb-theme-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border-radius: 50%;
	border: 1px solid var(--wp--preset--color--border);
	background: transparent;
	color: var(--wp--preset--color--contrast);
	cursor: pointer;
}
.itb-theme-toggle:hover { border-color: var(--wp--preset--color--accent-strong); color: var(--wp--preset--color--accent-strong); }

.itb-footer {
	background: var(--wp--preset--color--base);
	border-top: 1px solid var(--wp--preset--color--border);
	padding-block: 2rem;
	margin-top: 2rem;
}
.itb-footer .wp-block-site-tagline { color: var(--wp--preset--color--muted); margin-top: .25rem; }
.itb-footer .wp-block-navigation { gap: .5rem; }
.itb-footer__credit { color: var(--wp--preset--color--muted); margin-top: 1.5rem; }

.itb-main { padding-block: 1.5rem 3rem; }

/* =========================================================
   Shared components: chip, card, widget, section title
   ========================================================= */
.itb-chip { display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; }
.itb-chip .wp-block-post-terms__separator { display: none; }
.itb-chip a,
a.itb-chip {
	display: inline-block;
	background: var(--wp--preset--color--accent-strong);
	color: var(--itb-on-accent);
	padding: .1rem .65rem;
	border-radius: 999px;
	font-size: .75rem;
	font-weight: 700;
	line-height: 1.7;
	text-decoration: none;
}
.itb-chip a:hover,
a.itb-chip:hover { text-decoration: none; filter: brightness(1.08); }

.itb-section-title {
	font-size: 1.25rem;
	line-height: 1.3;
	margin: 0 0 1rem;
	padding-left: .75rem;
	border-left: 4px solid var(--wp--preset--color--accent);
}

.itb-card {
	background: var(--wp--preset--color--base);
	border-radius: var(--itb-radius);
	box-shadow: var(--itb-shadow);
	overflow: hidden;
	height: 100%;
	display: flex;
	flex-direction: column;
}
.itb-card .wp-block-post-featured-image,
.itb-card__media { margin: 0; }
.itb-card .wp-block-post-featured-image img,
.itb-card__media img { width: 100%; height: auto; display: block; object-fit: cover; aspect-ratio: 16 / 9; }

.wp-block-group.itb-card__body {
	padding: 1rem 1.125rem 1.125rem;
	display: flex;
	flex-direction: column;
	gap: .55rem;
	flex: 1;
}
.wp-block-group.itb-card__body > * { margin: 0; }
.itb-card__title { font-size: 1.15rem; line-height: 1.45; font-weight: 700; margin: 0; }
.itb-card__title a { color: inherit; text-decoration: none; }
.itb-card__title a:hover { color: var(--wp--preset--color--accent-strong); }
.itb-card__excerpt { color: var(--wp--preset--color--muted); font-size: .9375rem; line-height: 1.7; }
.itb-card__excerpt p { margin: 0; }
.itb-card__excerpt .wp-block-post-excerpt__more-link { display: none; }

.itb-card__meta {
	display: flex;
	flex-wrap: wrap;
	gap: .15rem .6rem;
	align-items: center;
	color: var(--wp--preset--color--muted);
	font-size: .8125rem;
	margin-top: auto;
}
.itb-card__meta > * { margin: 0; }
.itb-card__meta .itb-reading-time::before { content: "·"; margin-right: .6rem; }

/* A card with neither an image nor a generated gradient still gets a visual anchor */
.itb-card:not(:has(img, .itb-gradient-cover__art)) { border-top: 4px solid var(--wp--preset--color--accent); }

/* Generated gradient cover (shown when a post has no featured image; see inc/covers.php) */
.itb-gradient-cover { margin: 0; }
.itb-gradient-cover a { display: block; }
.itb-gradient-cover__art {
	position: relative;
	display: block;
	width: 100%;
	aspect-ratio: var(--itb-ar, 16 / 9);
	overflow: hidden;
}
.itb-gradient-cover__art::after {
	content: "";
	position: absolute;
	inset: 0;
	background: repeating-linear-gradient(135deg, rgba(255, 255, 255, .06) 0 2px, transparent 2px 16px);
}
.itb-card .itb-gradient-cover__art,
.itb-card__media .itb-gradient-cover__art { aspect-ratio: 16 / 9; }
.itb-overlay-card__media .itb-gradient-cover__art { position: absolute; inset: 0; height: 100%; aspect-ratio: auto; }
.itb-item__media .itb-gradient-cover__art { width: 96px; height: 96px; aspect-ratio: auto; border-radius: 8px; }
.itb-single__cover .itb-gradient-cover__art { border-radius: var(--itb-radius); aspect-ratio: 16 / 9; }

/* Picture stand-in inside an article: a Group block with this class + a caption paragraph */
.wp-block-group.itb-figure-ph {
	position: relative;
	display: flex;
	align-items: flex-end;
	min-height: 240px;
	margin-block: 1.75rem;
	padding: 1rem 1.25rem;
	border-radius: var(--itb-radius);
	color: #fff;
	overflow: hidden;
	background:
		radial-gradient(circle at 80% 15%, var(--itb-g1, #1e88e5) 0, transparent 55%),
		radial-gradient(circle at 10% 90%, var(--itb-g2, #00bcd4) 0, transparent 52%),
		linear-gradient(135deg, var(--itb-g3, #0b3d91), var(--itb-g4, #0a1a3a));
}
.wp-block-group.itb-figure-ph > p { position: relative; margin: 0; font-size: .875rem; color: #fff; text-shadow: 0 1px 2px rgba(0, 0, 0, .5); }
.itb-figure-ph--ocean  { --itb-g1: #1e88e5; --itb-g2: #00bcd4; --itb-g3: #0b3d91; --itb-g4: #0a1a3a; }
.itb-figure-ph--sunset { --itb-g1: #ff7a45; --itb-g2: #d81b60; --itb-g3: #6a1b9a; --itb-g4: #1a1033; }
.itb-figure-ph--forest { --itb-g1: #22c55e; --itb-g2: #0e7490; --itb-g3: #0f766e; --itb-g4: #052e2b; }
.itb-figure-ph--violet { --itb-g1: #a855f7; --itb-g2: #ec4899; --itb-g3: #4f46e5; --itb-g4: #1e1b4b; }

.itb-widget {
	background: var(--wp--preset--color--base);
	border-radius: var(--itb-radius);
	box-shadow: var(--itb-shadow);
	padding: 1.25rem;
	margin-bottom: 1.25rem;
}
.itb-widget__title {
	font-size: 1rem;
	margin: 0 0 .75rem;
	padding-bottom: .4rem;
	border-bottom: 2px solid var(--wp--preset--color--accent);
	display: inline-block;
}
.itb-widget { font-size: .9375rem; }
.itb-widget ul { list-style: none; padding: 0; margin: 0; }
.itb-widget li { padding: .45rem 0; border-bottom: 1px solid var(--wp--preset--color--border); }
.itb-widget li:last-child { border-bottom: 0; }
.itb-widget a { color: var(--wp--preset--color--contrast); text-decoration: none; }
.itb-widget a:hover { color: var(--wp--preset--color--accent-strong); }
.itb-widget .wp-block-latest-posts__post-date { display: block; color: var(--wp--preset--color--muted); font-size: .8125rem; }
.itb-widget .wp-block-tag-cloud a {
	display: inline-block;
	margin: 0 .3rem .4rem 0;
	padding: .1rem .6rem;
	background: var(--wp--preset--color--surface);
	border-radius: 6px;
	color: var(--wp--preset--color--muted);
}

/* Pagination */
.wp-block-query-pagination { margin-top: 2rem; gap: .5rem; }
.wp-block-query-pagination .page-numbers,
.wp-block-query-pagination a {
	padding: .3rem .75rem;
	border-radius: 8px;
	text-decoration: none;
	color: var(--wp--preset--color--contrast);
}
.wp-block-query-pagination .page-numbers.current {
	background: var(--wp--preset--color--accent-strong);
	color: var(--itb-on-accent);
}

/* =========================================================
   Home: hero + listing
   ========================================================= */
.itb-hero { gap: 1.25rem; margin-bottom: 2.25rem; }
.itb-layout { gap: 2rem; }

.itb-overlay-card {
	position: relative;
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	min-height: 340px;
	height: 100%;
	border-radius: var(--itb-radius);
	overflow: hidden;
	box-shadow: var(--itb-shadow);
	background:
		radial-gradient(circle at 85% 15%, color-mix(in srgb, var(--wp--preset--color--accent) 38%, transparent), transparent 55%),
		#0f172a;
}
.itb-overlay-card__media { position: absolute; inset: 0; margin: 0; }
.itb-overlay-card__media a { display: block; height: 100%; }
.itb-overlay-card__media img { position: absolute; inset: 0; width: 100% !important; height: 100% !important; object-fit: cover; }
.wp-block-group.itb-overlay-card__body {
	position: relative;
	z-index: 1;
	padding: 3.5rem 1.5rem 1.5rem;
	background: linear-gradient(to top, rgba(0, 0, 0, .85), rgba(0, 0, 0, 0));
	color: #fff;
}
.wp-block-group.itb-overlay-card__body > * { margin: 0; }
.wp-block-group.itb-overlay-card__body > * + * { margin-top: .6rem; }
.itb-overlay-card__title { font-size: clamp(1.4rem, 1.1rem + 1.2vw, 1.9rem); line-height: 1.4; }
.itb-overlay-card__title a { color: #fff !important; text-decoration: none; }
.itb-overlay-card .itb-card__meta { color: rgba(255, 255, 255, .85); }

.itb-hero__list .wp-block-post-template { display: flex; flex-direction: column; gap: .9rem; }
.itb-hero__list .wp-block-post-template > li { margin: 0; }
.itb-item {
	background: var(--wp--preset--color--base);
	border-radius: var(--itb-radius);
	box-shadow: var(--itb-shadow);
	padding: .75rem;
	gap: 1rem;
}
.itb-item__media { margin: 0; flex: 0 0 96px; }
.itb-item__media img { width: 96px; height: 96px; object-fit: cover; border-radius: 8px; display: block; }
.wp-block-group.itb-item__body { display: flex; flex-direction: column; gap: .3rem; min-width: 0; }
.wp-block-group.itb-item__body > * { margin: 0; }
.itb-item__title { font-size: 1rem; line-height: 1.45; font-weight: 700; margin: 0; }
.itb-item__title a { color: inherit; text-decoration: none; }
.itb-item__title a:hover { color: var(--wp--preset--color--accent-strong); }

.itb-archive-head { margin-bottom: 1.5rem; }
.itb-archive-head h1 { font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.25rem); margin: 0 0 .5rem; }
.itb-archive-head .wp-block-term-description { color: var(--wp--preset--color--muted); margin: 0; }

.itb-page__panel {
	background: var(--wp--preset--color--base);
	border-radius: var(--itb-radius);
	box-shadow: var(--itb-shadow);
	padding: clamp(1.25rem, 3vw, 2.5rem);
	max-width: 860px;
	margin-inline: auto;
}

/* =========================================================
   Single post
   ========================================================= */
.itb-single__head { margin-bottom: 1.25rem; }
.itb-single__head > * { margin-block: 0; }
.itb-single__head h1 { margin-block: .75rem 1rem; font-size: clamp(1.9rem, 1.3rem + 2.4vw, 2.9rem); line-height: 1.35; }
.itb-single__meta {
	gap: .25rem 1.25rem;
	align-items: center;
	color: var(--wp--preset--color--muted);
	font-size: .9rem;
}
.itb-single__meta > * { margin: 0; }
.itb-single__meta .wp-block-post-author-name { font-weight: 500; color: var(--wp--preset--color--contrast); }
.itb-modified::before { content: "อัปเดตล่าสุด "; }
.itb-published::before { content: "เผยแพร่ "; }
.itb-single__meta .itb-reading-time::before { content: none; }

.itb-single__cover { margin: 0 0 1.5rem; overflow: hidden; border-radius: var(--itb-radius); }
.itb-single__cover img { border-radius: var(--itb-radius); width: 100%; object-fit: cover; }
@media (min-width: 782px) {
	/* keep the article text near the first screen: wide cover, capped height */
	.itb-single__cover img { height: 420px !important; aspect-ratio: auto !important; }
	.itb-single__cover .itb-gradient-cover__art { height: 420px; aspect-ratio: auto; }
}

.itb-single__layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 280px;
	grid-template-areas: "article aside";
	gap: 2.5rem;
	align-items: start;
}
.itb-single__layout > * { margin: 0 !important; }
.itb-single__article {
	grid-area: article;
	background: var(--wp--preset--color--base);
	border-radius: var(--itb-radius);
	box-shadow: var(--itb-shadow);
	padding: clamp(1.25rem, 3vw, 2.5rem);
	min-width: 0;
}
.itb-single__aside {
	grid-area: aside;
	position: sticky;
	top: 1.5rem;
	align-self: start;
}

@media (max-width: 900px) {
	.itb-single__layout { grid-template-columns: minmax(0, 1fr); grid-template-areas: "aside" "article"; gap: 1.25rem; }
	.itb-single__aside { position: static; }
}

/* reading column: left-aligned with the title, comfortable measure */
.itb-single__article .wp-block-post-content > * {
	margin-left: 0 !important;
	margin-right: auto !important;
	max-width: 760px;
}
.itb-single__article .wp-block-post-content > .alignwide,
.itb-single__article .wp-block-post-content > .alignfull { max-width: none; }

.wp-block-post-content h2 { margin-top: 2.5rem; margin-bottom: 1rem; scroll-margin-top: 1rem; }
.wp-block-post-content h3 { margin-top: 2rem; margin-bottom: .75rem; scroll-margin-top: 1rem; }
.wp-block-post-content img { height: auto; border-radius: 8px; }
.wp-block-post-content figcaption { color: var(--wp--preset--color--muted); font-size: .875rem; text-align: left; }
.wp-block-post-content :not(pre) > code {
	font-family: var(--wp--preset--font-family--mono);
	font-size: .9em;
	background: color-mix(in srgb, var(--wp--preset--color--contrast) 9%, transparent);
	padding: .1em .4em;
	border-radius: 5px;
	word-break: break-word;
}
.wp-block-post-content kbd {
	font-family: var(--wp--preset--font-family--mono);
	font-size: .85em;
	border: 1px solid var(--wp--preset--color--border);
	border-bottom-width: 2px;
	border-radius: 5px;
	padding: .05em .4em;
	background: var(--wp--preset--color--surface);
}
.wp-block-post-content .wp-block-table { overflow-x: auto; }
.wp-block-post-content table { border-collapse: collapse; width: 100%; font-size: .95em; }
.wp-block-post-content th,
.wp-block-post-content td { border: 1px solid var(--wp--preset--color--border); padding: .55rem .75rem; text-align: left; }
.wp-block-post-content th { background: var(--wp--preset--color--surface); }
.wp-block-post-content blockquote { color: var(--wp--preset--color--muted); }
.wp-block-post-content ul,
.wp-block-post-content ol { padding-left: 1.5rem; }
.wp-block-post-content li + li { margin-top: .3rem; }

/* =========================================================
   Code blocks
   ========================================================= */
pre.wp-block-code {
	margin: 1.5rem 0;
	padding: 1rem 1.25rem;
	background: var(--wp--preset--color--code-bg);
	color: #e2e8f0;
	border: 1px solid rgba(255, 255, 255, .08);
	border-radius: var(--itb-radius);
	overflow-x: auto;
	white-space: pre;
	tab-size: 2;
	-webkit-text-size-adjust: 100%;
}
pre.wp-block-code code { font-family: inherit; font-size: inherit; background: none; padding: 0; color: inherit; white-space: pre; word-break: normal; }

.itb-code {
	margin: 1.5rem 0;
	border-radius: var(--itb-radius);
	overflow: hidden;
	background: var(--wp--preset--color--code-bg);
	border: 1px solid rgba(255, 255, 255, .08);
}
.itb-single__article .wp-block-post-content > .itb-code { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.itb-code pre.wp-block-code { margin: 0; border: 0; border-radius: 0; }
.itb-code__bar {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: .4rem .75rem;
	background: rgba(255, 255, 255, .06);
	color: #a3b1c6;
	font-family: var(--wp--preset--font-family--mono);
	font-size: .75rem;
}
.itb-code__copy {
	background: transparent;
	border: 1px solid rgba(255, 255, 255, .25);
	color: #d5deeb;
	border-radius: 6px;
	padding: .1rem .65rem;
	font: inherit;
	cursor: pointer;
}
.itb-code__copy:hover { border-color: #fff; color: #fff; }
.itb-code__copy.is-done { color: #86efac; border-color: #86efac; }

/* syntax tokens (highlight.js class names) */
.hljs-comment, .hljs-quote { color: #94a3b8; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-literal, .hljs-doctag, .hljs-meta .hljs-keyword { color: #ff9e7a; }
.hljs-string, .hljs-regexp, .hljs-addition, .hljs-meta .hljs-string { color: #86efac; }
.hljs-number, .hljs-symbol, .hljs-bullet { color: #fbbf24; }
.hljs-title, .hljs-section, .hljs-title.function_, .hljs-selector-id, .hljs-selector-class { color: #7dd3fc; }
.hljs-attr, .hljs-attribute, .hljs-variable, .hljs-template-variable, .hljs-params { color: #c4b5fd; }
.hljs-built_in, .hljs-type, .hljs-class .hljs-title, .hljs-title.class_ { color: #f9a8d4; }
.hljs-meta { color: #94a3b8; }
.hljs-deletion { color: #fca5a5; }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 700; }

/* =========================================================
   Callouts (block styles for core/group)
   ========================================================= */
.wp-block-group[class*="is-style-itb-note"],
.wp-block-group[class*="is-style-itb-tip"],
.wp-block-group[class*="is-style-itb-warning"],
.wp-block-group[class*="is-style-itb-danger"] {
	--c: var(--itb-c-note);
	border-left: 4px solid var(--c);
	border-radius: 8px;
	padding: .9rem 1.1rem;
	background: color-mix(in srgb, var(--c) 9%, var(--wp--preset--color--base));
}
.is-style-itb-tip { --c: var(--itb-c-tip) !important; }
.is-style-itb-warning { --c: var(--itb-c-warning) !important; }
.is-style-itb-danger { --c: var(--itb-c-danger) !important; }
.wp-block-group[class*="is-style-itb-"]::before {
	display: block;
	font-weight: 700;
	font-size: .8125rem;
	color: var(--c);
	margin-bottom: .2rem;
}
.is-style-itb-note::before { content: "หมายเหตุ"; }
.is-style-itb-tip::before { content: "เคล็ดลับ"; }
.is-style-itb-warning::before { content: "คำเตือน"; }
.is-style-itb-danger::before { content: "อันตราย"; }
.wp-block-group[class*="is-style-itb-"] > :first-child { margin-top: 0; }
.wp-block-group[class*="is-style-itb-"] > :last-child { margin-bottom: 0; }

.wp-block-group.is-style-itb-card {
	background: var(--wp--preset--color--base);
	border-radius: var(--itb-radius);
	box-shadow: var(--itb-shadow);
	padding: 1.25rem;
}

/* =========================================================
   Table of contents
   ========================================================= */
.itb-toc {
	background: var(--wp--preset--color--base);
	border-radius: var(--itb-radius);
	box-shadow: var(--itb-shadow);
	padding: 1rem 1.1rem;
	font-size: .9375rem;
	max-height: calc(100vh - 3rem);
	overflow: auto;
}
.itb-toc__title { font-weight: 700; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.itb-toc__title::-webkit-details-marker { display: none; }
.itb-toc__title::after { content: "▾"; color: var(--wp--preset--color--muted); }
.itb-toc details[open] > .itb-toc__title::after { content: "▴"; }
@media (min-width: 901px) {
	.itb-toc__title { cursor: default; }
	.itb-toc__title::after { content: none !important; }
}
.itb-toc__list { list-style: none; margin: .6rem 0 0; padding: 0; }
.itb-toc__sub { list-style: none; margin: .1rem 0 0; padding-left: 1rem; }
.itb-toc__item { margin: .1rem 0; }
.itb-toc a {
	display: block;
	padding: .25rem .5rem;
	line-height: 1.5;
	color: var(--wp--preset--color--muted);
	text-decoration: none;
	border-left: 2px solid transparent;
}
.itb-toc a:hover { color: var(--wp--preset--color--contrast); }
.itb-toc a.is-active {
	color: var(--wp--preset--color--accent-strong);
	border-left-color: var(--wp--preset--color--accent);
	font-weight: 500;
}
.itb-placeholder { color: var(--wp--preset--color--muted); font-style: italic; font-size: .875rem; }

/* =========================================================
   Post footer: tags, share, author, nav, related, comments
   ========================================================= */
.itb-tags { margin-top: 2rem; font-size: .875rem; color: var(--wp--preset--color--muted); }
.itb-tags a {
	display: inline-block;
	margin: 0 .3rem .4rem 0;
	padding: .1rem .65rem;
	background: var(--wp--preset--color--surface);
	border-radius: 6px;
	color: var(--wp--preset--color--muted);
	text-decoration: none;
}
.itb-tags a:hover { color: var(--wp--preset--color--accent-strong); }
.itb-tags .wp-block-post-terms__separator { display: none; }

.itb-share {
	margin-top: 1.5rem;
	padding-top: 1.25rem;
	border-top: 1px solid var(--wp--preset--color--border);
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: .6rem 1rem;
}
.itb-share__label { font-weight: 700; font-size: .9375rem; }
.itb-share__buttons { display: flex; flex-wrap: wrap; gap: .5rem; }
.itb-share__btn {
	display: inline-block;
	padding: .35rem .9rem;
	border: 1px solid var(--wp--preset--color--border);
	border-radius: 8px;
	background: var(--wp--preset--color--base);
	color: var(--wp--preset--color--contrast);
	font: inherit;
	font-size: .875rem;
	text-decoration: none;
	cursor: pointer;
}
.itb-share__btn:hover { border-color: var(--wp--preset--color--accent-strong); color: var(--wp--preset--color--accent-strong); text-decoration: none; }
.itb-share__btn.is-done { color: var(--itb-c-tip); border-color: var(--itb-c-tip); }

.itb-author { margin-top: 1.75rem; padding: 1.25rem; background: var(--wp--preset--color--surface); border-radius: var(--itb-radius); }
.itb-author .wp-block-post-author { display: flex; gap: 1rem; align-items: flex-start; }
.itb-author .wp-block-post-author__avatar { margin: 0; }
.itb-author .wp-block-post-author__avatar img { border-radius: 50%; display: block; }
.itb-author .wp-block-post-author__byline { font-size: .8125rem; color: var(--wp--preset--color--muted); margin: 0; }
.itb-author .wp-block-post-author__name { font-weight: 700; margin: 0 0 .25rem; }
.itb-author .wp-block-post-author__bio { margin: 0; color: var(--wp--preset--color--muted); font-size: .9375rem; }

.itb-postnav { margin-top: 1.75rem; gap: 1rem; }
.itb-postnav > div { flex: 1 1 240px; background: var(--wp--preset--color--surface); padding: .85rem 1.1rem; border-radius: var(--itb-radius); font-size: .9375rem; }
.itb-postnav > div:empty,
.itb-postnav .wp-block-post-navigation-link:empty { display: none; } /* no previous/next post */
.itb-postnav a { color: var(--wp--preset--color--contrast); text-decoration: none; font-weight: 500; }
.itb-postnav a:hover { color: var(--wp--preset--color--accent-strong); }
.itb-postnav .post-navigation-link-next { text-align: right; }

.itb-related { margin-top: 2.5rem; }
.itb-related__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 1rem; }
.itb-card--compact { background: var(--wp--preset--color--surface); box-shadow: none; }
.itb-card--compact .itb-card__body { padding: .85rem 1rem 1rem; display: flex; flex-direction: column; gap: .45rem; }
.itb-card--compact .itb-card__title { font-size: 1rem; }
.itb-card--compact .itb-card__meta { margin-top: 0; }
.itb-card--compact .itb-chip { align-self: flex-start; }

.itb-comments { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--wp--preset--color--border); }
.itb-comments .wp-block-comments-title,
.itb-comments .comment-reply-title { font-size: 1.25rem; margin-bottom: 1rem; }
.itb-comments .wp-block-comment-author-name { font-weight: 700; }
.itb-comments .wp-block-comment-date,
.itb-comments .wp-block-comment-reply-link,
.itb-comments .wp-block-comment-edit-link { font-size: .8125rem; color: var(--wp--preset--color--muted); }
.itb-comments .wp-block-comment-template { padding: 0; list-style: none; }

/* Forms */
input[type="text"], input[type="email"], input[type="url"], input[type="search"], input[type="password"], textarea,
.wp-block-search__input {
	background: var(--wp--preset--color--base);
	color: var(--wp--preset--color--contrast);
	border: 1px solid var(--wp--preset--color--border);
	border-radius: 8px;
	padding: .6rem .8rem;
	font: inherit;
	max-width: 100%;
}
.comment-form input[type="submit"],
.wp-block-search__button {
	cursor: pointer;
}
.wp-block-post-comments-form input[type="submit"] {
	background: var(--wp--preset--color--accent-strong);
	color: var(--itb-on-accent);
	border: 0;
	border-radius: 8px;
	padding: .6rem 1.2rem;
	font: inherit;
	font-weight: 500;
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 600px) {
	.wp-block-post-template.is-layout-grid { grid-template-columns: 1fr !important; }
	.itb-overlay-card { min-height: 260px; }

	/* Header: smaller logo; an opened search field covers the row instead of colliding with the logo. */
	.itb-header__logo img { max-width: 168px; }
	.itb-header__tools { gap: .25rem; }
	.itb-header .wp-block-search__button,
	.itb-theme-toggle { width: 36px; height: 36px; min-width: 36px; }
	.itb-header__title { font-size: 1.25rem; }
	.itb-header__inner { position: relative; }
	.itb-header__tools:has(.wp-block-search:not(.wp-block-search__searchfield-hidden)) {
		position: absolute;
		inset: 0;
		grid-column: 1 / -1; /* otherwise the grid area of column 3 becomes its containing block */
		justify-self: stretch;
		z-index: 2;
		justify-content: flex-end;
		background: var(--wp--preset--color--base);
	}
	.itb-header__tools:has(.wp-block-search:not(.wp-block-search__searchfield-hidden)) .wp-block-search { flex: 1 1 auto; }
	.itb-header__tools:has(.wp-block-search:not(.wp-block-search__searchfield-hidden)) .wp-block-search__inside-wrapper { width: 100%; }
	.itb-header__tools:has(.wp-block-search:not(.wp-block-search__searchfield-hidden)) .wp-block-search__input { flex: 1 1 auto; width: auto; }
}

/* Equal-height cards: let the card fill the list item, and the hero card fill the hero column. */
.wp-block-post-template > li > .wp-block-template-part { height: 100%; }
.wp-block-post-template > li > .wp-block-template-part > .itb-card { height: 100%; }
@media (min-width: 782px) {
	.itb-hero > .wp-block-column:first-child,
	.itb-hero > .wp-block-column:first-child > .wp-block-query,
	.itb-hero > .wp-block-column:first-child .wp-block-post-template,
	.itb-hero > .wp-block-column:first-child .wp-block-post-template > li,
	.itb-hero > .wp-block-column:first-child .wp-block-post-template > li > .wp-block-template-part { display: flex; flex-direction: column; }
	.itb-hero > .wp-block-column:first-child > .wp-block-query,
	.itb-hero > .wp-block-column:first-child .wp-block-post-template,
	.itb-hero > .wp-block-column:first-child .wp-block-post-template > li,
	.itb-hero > .wp-block-column:first-child .wp-block-post-template > li > .wp-block-template-part,
	.itb-hero > .wp-block-column:first-child .itb-overlay-card { flex: 1 1 auto; }
	.itb-hero > .wp-block-column:first-child .itb-overlay-card { min-height: 340px; }
}

@media print {
	.itb-header, .itb-footer, .itb-single__aside, .itb-share, .itb-comments, .itb-related, .itb-postnav, .itb-code__copy { display: none !important; }
	.itb-single__article { box-shadow: none; padding: 0; }
}