/*
Theme Name: Tech Research Lab
Description: A lightweight Korean IT help magazine child theme for Twenty Twenty-Five.
Author: Tech Research Lab
Template: twentytwentyfive
Version: 1.4.0
Text Domain: tech-research-lab
Requires at least: 6.7
Requires PHP: 7.4
*/

:root {
	--trl-ink: #17253a;
	--trl-muted: #65758b;
	--trl-line: #e2e8f0;
	--trl-paper: #ffffff;
	--trl-wash: #f5f8fc;
	--trl-blue: #1769aa;
	--trl-blue-dark: #124f82;
	--trl-radius: 16px;
}

html {
	scroll-behavior: smooth;
}

body {
	color: var(--trl-ink);
	background: var(--trl-wash);
}

.wp-site-blocks > header,
.wp-site-blocks > footer {
	background: var(--trl-paper);
}

.trl-header {
	display: grid !important;
	grid-template-columns: minmax(0, 1fr) auto;
	align-items: center;
	gap: 1rem;
	box-sizing: border-box;
	width: min(1200px, calc(100% - 40px));
	max-width: 1200px !important;
	min-height: 60px;
	margin-right: auto !important;
	margin-left: auto !important;
	padding-top: 0.25rem;
	padding-bottom: 0.25rem;
	border-bottom: 1px solid var(--trl-line);
}

.trl-brand {
	display: flex;
	align-items: center;
	min-width: 0;
}

.trl-brand .wp-block-site-title {
	margin: 0;
	font-size: 1.25rem;
	line-height: 1.2;
}

.trl-brand .wp-block-site-title a {
	color: var(--trl-ink);
	font-weight: 800;
	letter-spacing: -0.04em;
	text-decoration: none;
}

.trl-header-tools {
	display: flex;
	align-items: center;
	justify-self: end;
	gap: 0.75rem;
	min-width: 0;
}

.trl-header-tools .wp-block-search {
	width: 180px;
	max-width: 22vw;
	margin: 0;
}

.trl-header-tools .wp-block-search__inside-wrapper {
	display: flex;
	width: 100%;
	min-width: 0;
	gap: 0.25rem;
}

.trl-header-tools .wp-block-search__input {
	flex: 1 1 auto;
	box-sizing: border-box;
	min-width: 0;
	width: 1%;
	height: 36px;
	padding: 0 0.65rem;
	border: 1px solid #cbd5e1;
	border-radius: 8px;
	font-size: 0.85rem;
}

.trl-header-tools .wp-block-search__button.has-icon {
	width: 36px;
	min-width: 36px;
	height: 36px;
	padding: 0;
	display: grid;
	place-items: center;
}

.wp-block-search__button {
	flex: 0 0 auto;
	min-width: max-content;
	white-space: nowrap;
}

.trl-category-nav ul {
	display: flex;
	flex-wrap: wrap;
	min-width: 0;
	gap: 0.45rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.trl-category-nav a {
	display: inline-flex;
	max-width: 100%;
	padding: 0.24rem 0.5rem;
	border: 1px solid var(--trl-line);
	border-radius: 999px;
	color: var(--trl-ink);
	font-size: 0.78rem;
	line-height: 1.2;
	white-space: normal;
	text-align: center;
	text-decoration: none;
}

.trl-category-nav a:hover,
.trl-category-nav a:focus-visible {
	border-color: var(--trl-blue);
	color: var(--trl-blue-dark);
}

.wp-site-blocks main.trl-main.alignwide {
	box-sizing: border-box;
	width: min(1200px, calc(100% - 40px));
	max-width: 1200px !important;
	margin-right: auto !important;
	margin-left: auto !important;
}

.trl-section-title {
	margin: 0 0 0.65rem;
	font-size: 1.25rem;
	line-height: 1.3;
	letter-spacing: -0.025em;
}

.wp-block-query.trl-query {
	width: 100%;
	max-width: 100%;
}

.wp-block-post-template.trl-post-grid.is-layout-grid {
	grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
	align-items: stretch;
	gap: 0.9rem !important;
}

.trl-post-card {
	position: relative;
	display: flex !important;
	flex-direction: column !important;
	align-items: stretch;
	gap: 0;
	height: 100%;
	box-sizing: border-box;
	min-width: 0;
	padding: 0.75rem;
	border: 1px solid var(--trl-line);
	border-radius: var(--trl-radius);
	background: var(--trl-paper);
	box-shadow: 0 5px 18px rgb(23 37 58 / 4%);
	transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.trl-post-card:hover {
	transform: translateY(-2px);
	border-color: #c6d8eb;
	box-shadow: 0 10px 24px rgb(23 37 58 / 8%);
}

.trl-post-card .wp-block-post-featured-image {
	flex: none;
	width: 100%;
	aspect-ratio: 16 / 9;
	box-sizing: border-box;
	margin: 0 0 0.65rem;
	padding: 0.25rem;
	border-radius: 11px;
	background: #f3f6fa;
	overflow: hidden;
}

.trl-post-card .wp-block-post-featured-image img {
	display: block;
	width: 100%;
	height: 100%;
	max-height: 100%;
	object-fit: contain !important;
}

.trl-post-card .wp-block-post-date {
	margin: 0.35rem 0 0;
}

.trl-post-card .wp-block-post-title {
	position: static;
	margin: 0;
	font-size: clamp(1.05rem, 1.35vw, 1.2rem);
	line-height: 1.35;
	letter-spacing: -0.025em;
}

.trl-post-card .trl-card-title a {
	display: -webkit-box;
	max-height: calc(1.35em * 2);
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
	overflow: hidden;
	text-decoration: none;
}

.trl-post-card .trl-card-title a::after {
	position: absolute;
	z-index: 1;
	inset: 0;
	border-radius: inherit;
	content: "";
}

.trl-post-card:focus-within {
	outline: 3px solid #6aa8e2;
	outline-offset: 3px;
}

.trl-post-card .trl-card-title a:focus-visible {
	outline: none;
}

.trl-post-card .trl-card-title a:focus-visible::after {
	outline: 3px solid #1769aa;
	outline-offset: 3px;
}

.trl-post-card .wp-block-post-title a {
	color: var(--trl-ink);
}

.trl-post-card .wp-block-post-title a:hover {
	color: var(--trl-blue-dark);
}

.trl-post-card .trl-post-categories {
	margin: 0.35rem 0 0;
	color: var(--trl-blue-dark);
	font-size: 0.76rem;
	line-height: 1.35;
}

.trl-post-card .trl-post-categories a {
	color: inherit;
	text-decoration: none;
}

.trl-post-card .wp-block-post-excerpt {
	margin: 0.4rem 0 0;
	color: #43536a;
	font-size: 0.88rem;
	line-height: 1.5;
}

.trl-post-card .wp-block-post-excerpt__excerpt {
	display: -webkit-box;
	max-height: calc(1.5em * 2);
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
	min-height: calc(1.5em * 2);
	margin: 0;
	overflow: hidden;
}

.trl-post-meta {
	color: var(--trl-muted);
	font-size: 0.83rem;
}

.trl-article-header {
	margin: 0 auto 2rem;
	padding-bottom: 1.5rem;
	border-bottom: 1px solid var(--trl-line);
}

.trl-article-header h1 {
	margin: 0 0 1rem;
	font-size: clamp(2rem, 5vw, 3.1rem);
	line-height: 1.28;
	letter-spacing: -0.045em;
	word-break: keep-all;
}

.trl-article-content {
	font-size: 1.0625rem;
	line-height: 1.85;
	word-break: keep-all;
	overflow-wrap: anywhere;
}

.trl-article-content h2 {
	margin-top: 2.6em;
	padding-left: 0.75rem;
	border-left: 4px solid var(--trl-blue);
	font-size: clamp(1.45rem, 3.3vw, 1.85rem);
	line-height: 1.4;
	letter-spacing: -0.035em;
}

.trl-article-content h3 {
	margin-top: 2em;
	font-size: clamp(1.2rem, 2.7vw, 1.45rem);
	line-height: 1.5;
	letter-spacing: -0.025em;
}

.trl-article-content p,
.trl-article-content li {
	color: #29384d;
}

.trl-article-content :target {
	scroll-margin-top: 1.5rem;
}

.trl-article-content .trl-summary {
	margin: 1.5rem 0;
	padding: 1rem 1.15rem;
	border: 1px solid #b9d8f1;
	border-left: 5px solid var(--trl-blue);
	border-radius: 10px;
	background: #eff7ff;
	color: var(--trl-ink);
}

.trl-article-content .trl-toc,
.trl-article-content .trl-diagnosis,
.trl-article-content .trl-faq {
	margin: 1.5rem 0 2rem;
	padding: 1.15rem;
	border: 1px solid var(--trl-line);
	border-radius: 12px;
	background: var(--trl-paper);
}

.trl-article-content .trl-toc > p,
.trl-article-content .trl-diagnosis > p {
	margin-top: 0;
}

.trl-article-content .trl-toc ol {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 0.5rem 1.5rem;
	margin: 0;
	padding-left: 1.5rem;
}

.trl-article-content .trl-toc a,
.trl-article-content .trl-internal-links a {
	color: var(--trl-blue-dark);
	font-weight: 650;
	text-underline-offset: 0.18em;
}

.trl-article-content .trl-toc a:focus-visible,
.trl-article-content .trl-internal-links a:focus-visible,
.trl-article-content .trl-faq summary:focus-visible {
	outline: 3px solid #f0a000;
	outline-offset: 3px;
	border-radius: 3px;
}

.trl-article-content .trl-diagnosis table {
	margin: 0;
}

.trl-article-content .trl-diagnosis th {
	width: 34%;
	color: var(--trl-ink);
	text-align: left;
}

.trl-article-content .trl-faq details {
	padding: 0.85rem 0;
	border-top: 1px solid var(--trl-line);
}

.trl-article-content .trl-faq details:first-of-type {
	border-top: 0;
}

.trl-article-content .trl-faq summary {
	color: var(--trl-ink);
	cursor: pointer;
	font-weight: 700;
}

.trl-article-content .trl-faq details p {
	margin-bottom: 0;
}

.trl-article-content .trl-internal-links {
	margin-top: 2rem;
	padding: 0.85rem 1rem;
	border-radius: 9px;
	background: var(--trl-wash);
}

.trl-article-content img {
	width: auto;
	max-width: 100%;
	height: auto;
	margin-right: auto;
	margin-left: auto;
	object-fit: contain;
}

.trl-article-content figure {
	margin-top: 1.8rem;
	margin-bottom: 1.8rem;
}

.trl-article-content figcaption {
	margin-top: 0.65rem;
	color: var(--trl-muted);
	font-size: 0.9rem;
	text-align: center;
}

.trl-article-content table {
	display: block;
	width: 100%;
	max-width: 100%;
	overflow-x: auto;
	border-collapse: collapse;
	white-space: normal;
}

.trl-article-content th,
.trl-article-content td {
	min-width: 7rem;
	padding: 0.7rem 0.85rem;
	border: 1px solid var(--trl-line);
	vertical-align: top;
}

.trl-article-content th {
	background: #f2f6fb;
	font-weight: 700;
}

.trl-article-content pre {
	max-width: 100%;
	padding: 1rem 1.15rem;
	border: 1px solid #233650;
	border-radius: 12px;
	background: #142338;
	color: #f0f6ff;
	font-size: 0.9rem;
	line-height: 1.65;
	white-space: pre;
	overflow-x: auto;
}

.trl-article-content :not(pre) > code {
	padding: 0.12em 0.38em;
	border-radius: 5px;
	background: #edf3fa;
	color: #173f68;
	font-size: 0.92em;
}

.trl-related {
	margin-top: 3rem;
	padding-top: 1.5rem;
	border-top: 1px solid var(--trl-line);
}

.trl-related ul {
	padding-left: 1.2rem;
}

.trl-related a,
.trl-pagination a,
.wp-block-search__button {
	color: var(--trl-blue-dark);
}

.wp-block-search__button {
	border: 0;
	border-radius: 8px;
	background: #e5f1fc;
	font-weight: 700;
}

.trl-footer {
	display: none;
}

@media (max-width: 1100px) {
	.trl-header-tools .trl-category-nav {
		display: none;
	}

	.trl-header-tools .wp-block-search {
		width: 180px;
		max-width: none;
	}
}

@media (max-width: 781px) {
	.trl-header {
		grid-template-columns: minmax(0, 1fr) auto;
		gap: 0.5rem;
		width: calc(100% - 24px);
	}

	.trl-article-content {
		font-size: 1rem;
	}

	.trl-article-content .trl-toc ol {
		grid-template-columns: minmax(0, 1fr);
		gap: 0.4rem;
	}

	.trl-article-content .trl-toc,
	.trl-article-content .trl-diagnosis,
	.trl-article-content .trl-faq {
		padding: 0.9rem;
	}

	.trl-article-content .trl-diagnosis th,
	.trl-article-content .trl-diagnosis td {
		min-width: 8rem;
		padding: 0.65rem;
	}
}


@media (min-width: 641px) and (max-width: 1024px) {
	.wp-block-post-template.trl-post-grid.is-layout-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
	}
}

@media (min-width: 1025px) {
	.wp-block-post-template.trl-post-grid.is-layout-grid {
		grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
	}
}


@media (max-width: 640px) {
	.trl-header-tools {
		width: 100%;
		gap: 0;
	}

	.trl-header-tools .wp-block-search {
		flex: 0 0 140px;
		width: 140px;
		margin-left: auto;
	}

	.wp-block-post-template.trl-post-grid.is-layout-grid {
		grid-template-columns: minmax(0, 1fr) !important;
	}

	.trl-post-card {
		padding: 0.9rem;
	}
}