/*
Theme Name: Infotexte Blog
Description: Theme for blog.infotexte.de: a light, readable article blog with topic sidebar.
Version: 2.0.0
Requires at least: 7.1
Requires PHP: 8.3
Text Domain: infotexte-blog
*/

:root {
	--ink: #1c2b3a;
	--slate: #556274;
	--rule: #e2e6ec;
	--wash: #f5f7fa;
	--link: #1f4e79;
	--mark: #f2c230;
	--paper: #ffffff;
	--serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
	--sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--wrap: 1160px;
	--gap: clamp(16px, 4vw, 40px);
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font: 400 1.0625rem/1.65 var(--serif);
}

img,
video,
iframe {
	max-width: 100%;
	height: auto;
}

a {
	color: var(--link);
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
}

a:hover {
	text-decoration-color: var(--mark);
	text-decoration-thickness: 3px;
}

:focus-visible {
	outline: 3px solid var(--mark);
	outline-offset: 2px;
}

.screen-reader-text {
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(0 0 0 0);
	white-space: nowrap;
}

.skip-link:focus {
	position: fixed;
	top: 8px;
	left: 8px;
	z-index: 10;
	width: auto;
	height: auto;
	clip: auto;
	padding: 8px 12px;
	background: var(--ink);
	color: var(--paper);
	font-family: var(--sans);
}

.wrap {
	max-width: var(--wrap);
	margin: 0 auto;
	padding: 0 var(--gap);
}

/* Masthead */

.masthead {
	border-bottom: 1px solid var(--rule);
}

.masthead .wrap {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 12px 32px;
	padding-top: 22px;
	padding-bottom: 18px;
}

.brand {
	margin: 0;
	font: 700 2rem/1 var(--sans);
	letter-spacing: -0.02em;
}

.brand a {
	color: var(--ink);
	text-decoration: none;
}

.brand .colon {
	color: var(--mark);
	font-size: 1.15em;
	margin-left: 0.04em;
}

.tagline {
	margin: 6px 0 0;
	color: var(--slate);
	font: 400 0.875rem/1.4 var(--sans);
}

.site-nav {
	margin-left: auto;
	font-family: var(--sans);
}

.site-nav ul {
	display: flex;
	flex-wrap: wrap;
	gap: 4px 22px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.site-nav a {
	color: var(--ink);
	font-size: 0.9375rem;
	text-decoration: none;
}

.site-nav a:hover,
.site-nav .current_page_item a {
	text-decoration: underline;
	text-decoration-color: var(--mark);
	text-decoration-thickness: 3px;
}

.search-form {
	display: flex;
	font-family: var(--sans);
}

.search-form input[type="search"] {
	flex: 1;
	min-width: 0;
	padding: 9px 12px;
	border: 1px solid var(--rule);
	border-right: 0;
	border-radius: 6px 0 0 6px;
	font: inherit;
	font-size: 0.9375rem;
	color: var(--ink);
	background: var(--paper);
}

.search-form button {
	padding: 9px 14px;
	border: 1px solid var(--ink);
	border-radius: 0 6px 6px 0;
	background: var(--ink);
	color: var(--paper);
	font: inherit;
	font-size: 0.9375rem;
	cursor: pointer;
}

.masthead .search-form {
	flex: 0 1 260px;
}

/* Layout */

.layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 300px;
	gap: 56px;
	padding-top: 36px;
	padding-bottom: 64px;
}

/* Listings */

.archive-head {
	margin-bottom: 28px;
	padding-bottom: 18px;
	border-bottom: 3px solid var(--ink);
}

.archive-head p {
	margin: 0 0 4px;
	color: var(--slate);
	font: 400 0.875rem/1.4 var(--sans);
}

.archive-head h1 {
	margin: 0;
	font: 700 2rem/1.2 var(--sans);
	letter-spacing: -0.01em;
}

.archive-head .description {
	margin-top: 10px;
	color: var(--slate);
	font: 400 1rem/1.6 var(--serif);
}

.entry {
	padding: 26px 0;
	border-bottom: 1px solid var(--rule);
}

.entry:first-child {
	padding-top: 0;
}

.topics {
	display: flex;
	flex-wrap: wrap;
	gap: 4px 14px;
	margin: 0 0 6px;
	padding: 0;
	list-style: none;
	font: 600 0.8125rem/1.4 var(--sans);
}

.topics a {
	color: var(--link);
	text-decoration: none;
	border-bottom: 2px solid var(--mark);
}

.topics a:hover {
	border-bottom-color: var(--link);
}

.entry-title {
	margin: 0 0 6px;
	font: 700 1.5rem/1.25 var(--serif);
}

.entry-title a {
	color: var(--ink);
	text-decoration: none;
}

.entry-title a:hover {
	text-decoration: underline;
	text-decoration-color: var(--mark);
	text-decoration-thickness: 3px;
}

.meta {
	margin: 0 0 10px;
	color: var(--slate);
	font: 400 0.8125rem/1.5 var(--sans);
}

.meta a {
	color: inherit;
}

.teaser {
	margin: 0 0 10px;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.read-more {
	font: 600 0.875rem/1.4 var(--sans);
}

.pager {
	display: flex;
	justify-content: space-between;
	gap: 16px;
	margin-top: 32px;
	font: 600 0.9375rem/1.4 var(--sans);
}

.pager a {
	display: inline-block;
	padding: 10px 16px;
	border: 1px solid var(--rule);
	border-radius: 6px;
	text-decoration: none;
}

.pager a:hover {
	border-color: var(--ink);
}

.pager .next {
	margin-left: auto;
}

/* Article */

.article-head {
	margin-bottom: 26px;
}

.article-head h1 {
	margin: 0 0 12px;
	font: 700 clamp(1.75rem, 1.2rem + 2vw, 2.5rem)/1.15 var(--serif);
	letter-spacing: -0.01em;
}

.article-body {
	max-width: 68ch;
	font-size: 1.125rem;
	line-height: 1.72;
}

.article-body h2,
.article-body h3,
.article-body h4 {
	margin: 1.8em 0 0.5em;
	font-family: var(--sans);
	line-height: 1.3;
}

.article-body h2 {
	font-size: 1.375rem;
}

.article-body h3 {
	font-size: 1.1875rem;
}

.article-body p {
	margin: 0 0 1.1em;
}

.article-body ul,
.article-body ol {
	padding-left: 1.3em;
}

.article-body li {
	margin-bottom: 0.4em;
}

.article-body blockquote {
	margin: 1.5em 0;
	padding: 4px 0 4px 20px;
	border-left: 4px solid var(--mark);
	color: var(--slate);
	font-style: italic;
}

.article-body table {
	width: 100%;
	border-collapse: collapse;
	font: 400 0.9375rem/1.5 var(--sans);
}

.article-body th,
.article-body td {
	padding: 8px;
	border-bottom: 1px solid var(--rule);
	text-align: left;
}

.article-foot {
	max-width: 68ch;
	margin-top: 32px;
	padding-top: 18px;
	border-top: 1px solid var(--rule);
	font: 400 0.875rem/1.6 var(--sans);
	color: var(--slate);
}

.post-nav {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
	max-width: 68ch;
	margin-top: 28px;
	font-family: var(--sans);
}

.post-nav a {
	display: block;
	padding: 14px 16px;
	border: 1px solid var(--rule);
	border-radius: 6px;
	color: var(--ink);
	text-decoration: none;
	font-size: 0.9375rem;
	line-height: 1.4;
}

.post-nav a:hover {
	border-color: var(--ink);
}

.post-nav span {
	display: block;
	margin-bottom: 4px;
	color: var(--slate);
	font-size: 0.8125rem;
}

.post-nav .next {
	grid-column: 2;
	text-align: right;
}

/* Comments */

.comments {
	max-width: 68ch;
	margin-top: 40px;
	font-family: var(--sans);
}

.comments h2 {
	font-size: 1.25rem;
}

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

.comment-list li {
	padding: 16px 0;
	border-bottom: 1px solid var(--rule);
}

.comment-list .children {
	margin-left: 24px;
	list-style: none;
	padding: 0;
}

.comment-meta {
	color: var(--slate);
	font-size: 0.8125rem;
}

.comment-meta a {
	color: inherit;
}

.comment-content {
	font: 400 1rem/1.65 var(--serif);
}

/* Sidebar */

.sidebar {
	align-self: start;
	position: sticky;
	top: 24px;
	font-family: var(--sans);
}

.sidebar section {
	margin-bottom: 30px;
}

.sidebar h2 {
	margin: 0 0 10px;
	padding-bottom: 8px;
	border-bottom: 3px solid var(--ink);
	font-size: 1rem;
	font-weight: 700;
}

.sidebar ul {
	margin: 0;
	padding: 0;
	list-style: none;
	font-size: 0.9375rem;
	line-height: 1.4;
}

.sidebar li {
	padding: 7px 0;
	border-bottom: 1px solid var(--rule);
}

.sidebar li a {
	color: var(--ink);
	text-decoration: none;
}

.sidebar li a:hover {
	color: var(--link);
	text-decoration: underline;
}

.topic-list li {
	display: flex;
	justify-content: space-between;
	gap: 12px;
}

.topic-list .count {
	color: var(--slate);
	font-size: 0.8125rem;
}

.recent time {
	display: block;
	color: var(--slate);
	font-size: 0.8125rem;
}

.archive-list {
	display: grid;
	grid-template-columns: 1fr 1fr;
	column-gap: 16px;
}

.sidebar .about {
	padding: 16px;
	background: var(--wash);
	border-radius: 6px;
	font-size: 0.875rem;
	line-height: 1.55;
	color: var(--ink);
}

.sidebar .about p {
	margin: 0 0 8px;
}

/* Footer */

.site-foot {
	border-top: 1px solid var(--rule);
	background: var(--wash);
	font: 400 0.875rem/1.6 var(--sans);
	color: var(--slate);
}

.site-foot .wrap {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: 12px 32px;
	padding-top: 24px;
	padding-bottom: 24px;
}

.site-foot ul {
	display: flex;
	flex-wrap: wrap;
	gap: 4px 18px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.site-foot a {
	color: var(--ink);
}

/* Empty states */

.empty {
	padding: 8px 0 24px;
}

.empty h1 {
	margin: 0 0 10px;
	font: 700 1.75rem/1.2 var(--sans);
}

.empty .search-form {
	max-width: 420px;
	margin-top: 16px;
}

/* Small screens */

@media (max-width: 900px) {
	.layout {
		grid-template-columns: minmax(0, 1fr);
		gap: 40px;
	}

	.sidebar {
		position: static;
		padding-top: 28px;
		border-top: 3px solid var(--ink);
	}

	.site-nav {
		margin-left: 0;
	}

	.masthead .search-form {
		flex: 1 1 100%;
	}
}

@media (max-width: 560px) {
	body {
		font-size: 1rem;
	}

	.brand {
		font-size: 1.625rem;
	}

	.entry-title {
		font-size: 1.3125rem;
	}

	.article-body {
		font-size: 1.0625rem;
	}

	.post-nav {
		grid-template-columns: 1fr;
	}

	.post-nav .next {
		grid-column: 1;
	}
}

@media (prefers-reduced-motion: reduce) {
	* {
		scroll-behavior: auto !important;
	}
}