/*
Theme Name: Cortex
Theme URI: https://example.com/
Author: Yeshurun
Author URI: https://example.com/
Description: Fast, mobile-first classic theme built for a free online testing site. System font stack, no framework, no jQuery, no web fonts — everything inline-critical and under a few kilobytes, so the test page stays at the top of Core Web Vitals. Ships light and dark palettes, an accessible consent banner and ad slots that stay empty until consent is given.
Version: 1.0.0
Requires at least: 6.2
Tested up to: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: cortex
Tags: blog, one-column, custom-menu, featured-images, translation-ready, accessibility-ready
*/

/* ------------------------------------------------------------------ Tokens */

:root {
	--ct-accent: #3d5afe;
	--ct-accent-ink: #fff;
	--ct-ink: #16181d;
	--ct-ink-2: #464b56;
	--ct-muted: #6b7280;
	--ct-line: #d8dbe2;
	--ct-line-soft: #eceef2;
	--ct-bg: #fff;
	--ct-surface: #f7f8fa;
	--ct-radius: 14px;
	--ct-wrap: 46rem;
	--ct-wrap-wide: 68rem;
	--ct-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

@media (prefers-color-scheme: dark) {
	:root {
		--ct-ink: #e9eaee;
		--ct-ink-2: #c3c7d0;
		--ct-muted: #9aa1ad;
		--ct-line: #363b45;
		--ct-line-soft: #272b33;
		--ct-bg: #13151a;
		--ct-surface: #1b1e24;
	}
}

/* ------------------------------------------------------------------- Base */

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

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

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	* { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
	margin: 0;
	background: var(--ct-bg);
	color: var(--ct-ink);
	font-family: var(--ct-font);
	font-size: 1.0625rem;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}

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

a { color: var(--ct-accent); text-underline-offset: .18em; }
a:hover { text-decoration: none; }

:focus-visible { outline: 3px solid var(--ct-accent); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3, h4 { line-height: 1.22; letter-spacing: -.015em; margin: 2.2rem 0 .8rem; }
h1 { font-size: clamp(1.9rem, 5.5vw, 2.6rem); margin-top: 0; }
h2 { font-size: clamp(1.4rem, 3.6vw, 1.75rem); }
h3 { font-size: 1.2rem; }

p, ul, ol { margin: 0 0 1.1rem; }

blockquote {
	margin: 1.5rem 0;
	padding: .2rem 0 .2rem 1.1rem;
	border-left: 3px solid var(--ct-accent);
	color: var(--ct-ink-2);
}

code, pre {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	font-size: .9em;
}

hr { border: 0; border-top: 1px solid var(--ct-line-soft); margin: 2.5rem 0; }

table { width: 100%; border-collapse: collapse; margin: 0 0 1.5rem; }
th, td { padding: .6rem .7rem; border-bottom: 1px solid var(--ct-line-soft); text-align: left; }
th { font-weight: 600; }

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

.skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	z-index: 100;
	padding: .8rem 1.2rem;
	background: var(--ct-accent);
	color: var(--ct-accent-ink);
	border-radius: 0 0 8px 0;
}

.skip-link:focus { left: 0; }

/* ----------------------------------------------------------------- Layout */

.wrap {
	width: min(100% - 2rem, var(--ct-wrap));
	margin-inline: auto;
}

.wrap-wide { width: min(100% - 2rem, var(--ct-wrap-wide)); margin-inline: auto; }

.site-main { padding: 2.5rem 0 4rem; }

/* ----------------------------------------------------------------- Header */

.site-header {
	border-bottom: 1px solid var(--ct-line-soft);
	background: var(--ct-bg);
	position: sticky;
	top: 0;
	z-index: 20;
}

.site-header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	min-height: 62px;
}

.site-brand {
	display: inline-flex;
	align-items: center;
	gap: .55rem;
	font-weight: 700;
	font-size: 1.05rem;
	letter-spacing: -.01em;
	color: var(--ct-ink);
	text-decoration: none;
}

.site-brand-mark {
	display: inline-grid;
	place-items: center;
	width: 28px; height: 28px;
	border-radius: 8px;
	background: var(--ct-accent);
	color: var(--ct-accent-ink);
	font-size: .8rem;
	font-weight: 800;
}

.nav-toggle {
	display: inline-flex;
	align-items: center;
	gap: .45rem;
	background: none;
	border: 1px solid var(--ct-line);
	border-radius: 999px;
	padding: .45rem .85rem;
	font: inherit;
	font-size: .9rem;
	color: var(--ct-ink);
	cursor: pointer;
}

@media (min-width: 48rem) { .nav-toggle { display: none; } }

.main-nav ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: .2rem;
}

.main-nav a {
	display: block;
	padding: .65rem .2rem;
	color: var(--ct-ink-2);
	text-decoration: none;
	font-size: .95rem;
	font-weight: 500;
}

.main-nav a:hover,
.main-nav .current-menu-item > a { color: var(--ct-accent); }

@media (max-width: 47.99rem) {
	.main-nav {
		display: none;
		padding: .5rem 0 1rem;
		border-top: 1px solid var(--ct-line-soft);
	}
	.main-nav.is-open { display: block; }
}

@media (min-width: 48rem) {
	.main-nav ul { flex-direction: row; gap: 1.4rem; align-items: center; }
	.main-nav a { padding: .3rem 0; }
}

/* ------------------------------------------------------------------- Hero */

.hero { padding: 3rem 0 1rem; text-align: center; }

.hero-title {
	font-size: clamp(2rem, 6.5vw, 3rem);
	margin: 0 0 .8rem;
}

.hero-lede {
	font-size: clamp(1.05rem, 2.5vw, 1.25rem);
	color: var(--ct-ink-2);
	max-width: 34rem;
	margin: 0 auto 1.6rem;
}

.hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: .75rem;
	justify-content: center;
}

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 52px;
	padding: 0 1.6rem;
	border: 1px solid transparent;
	border-radius: 999px;
	background: var(--ct-accent);
	color: var(--ct-accent-ink);
	font: inherit;
	font-weight: 600;
	text-decoration: none;
	cursor: pointer;
}

.btn:hover { filter: brightness(1.08); }

.btn-ghost {
	background: transparent;
	border-color: var(--ct-line);
	color: var(--ct-ink);
}

/* ------------------------------------------------------------ Trust strip */

.trust {
	display: grid;
	gap: .75rem;
	margin: 2.5rem auto 0;
	padding: 0;
	list-style: none;
}

@media (min-width: 40rem) { .trust { grid-template-columns: repeat(3, 1fr); } }

.trust li {
	display: flex;
	gap: .6rem;
	align-items: flex-start;
	padding: .9rem 1rem;
	background: var(--ct-surface);
	border: 1px solid var(--ct-line-soft);
	border-radius: var(--ct-radius);
	font-size: .95rem;
}

.trust b { display: block; }
.trust span { color: var(--ct-muted); font-size: .875rem; }

.trust-mark {
	flex: none;
	width: 22px; height: 22px;
	margin-top: .15rem;
	color: var(--ct-accent);
}

/* ------------------------------------------------------------------ Cards */

.card-grid { display: grid; gap: 1rem; margin: 2rem 0; }

@media (min-width: 42rem) { .card-grid-2 { grid-template-columns: 1fr 1fr; } }

.card {
	display: block;
	padding: 1.4rem 1.5rem;
	border: 1px solid var(--ct-line-soft);
	border-radius: var(--ct-radius);
	background: var(--ct-surface);
	text-decoration: none;
	color: inherit;
}

a.card:hover { border-color: var(--ct-accent); }

.card h3 { margin: 0 0 .35rem; }
.card p { margin: 0; color: var(--ct-muted); font-size: .95rem; }

.card-meta {
	display: inline-block;
	margin-bottom: .5rem;
	font-size: .75rem;
	font-weight: 700;
	letter-spacing: .07em;
	text-transform: uppercase;
	color: var(--ct-accent);
}

/* -------------------------------------------------------------- Post list */

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

.post-list li { padding: 1.25rem 0; border-bottom: 1px solid var(--ct-line-soft); }

.post-list h2 { margin: 0 0 .3rem; font-size: 1.2rem; }
.post-list h2 a { color: inherit; text-decoration: none; }
.post-list h2 a:hover { color: var(--ct-accent); }
.post-list p { margin: 0; color: var(--ct-muted); font-size: .95rem; }

.entry-meta { font-size: .85rem; color: var(--ct-muted); margin-bottom: 1.5rem; }

.entry-content > *:first-child { margin-top: 0; }

.entry-content h2 { margin-top: 2.4rem; }

.entry-content ul, .entry-content ol { padding-left: 1.3rem; }

.entry-content li { margin-bottom: .4rem; }

/* ----------------------------------------------------------- Pagination */

.pagination { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 2rem; }

.pagination .page-numbers {
	display: inline-grid;
	place-items: center;
	min-width: 42px; height: 42px;
	padding: 0 .6rem;
	border: 1px solid var(--ct-line);
	border-radius: 10px;
	text-decoration: none;
	color: var(--ct-ink);
}

.pagination .current { background: var(--ct-accent); border-color: var(--ct-accent); color: var(--ct-accent-ink); }

/* ----------------------------------------------------------------- Footer */

.site-footer {
	border-top: 1px solid var(--ct-line-soft);
	background: var(--ct-surface);
	padding: 2.5rem 0;
	font-size: .9rem;
	color: var(--ct-muted);
}

.footer-nav ul {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: .5rem 1.25rem;
	margin: 0 0 1rem;
	padding: 0;
}

.footer-nav a { color: var(--ct-ink-2); text-decoration: none; }
.footer-nav a:hover { color: var(--ct-accent); }

.footer-legal { margin: 0; max-width: 46rem; }

/* ------------------------------------------------------------------- Ads */

.ad-slot {
	margin: 2rem auto;
	text-align: center;
	min-height: 0;
}

.ad-slot::before {
	content: attr(data-label);
	display: block;
	font-size: .7rem;
	letter-spacing: .08em;
	text-transform: uppercase;
	color: var(--ct-muted);
	margin-bottom: .35rem;
}

/* --------------------------------------------------------------- Consent */

.consent {
	position: fixed;
	inset-inline: 0;
	bottom: 0;
	z-index: 60;
	padding: 1rem;
	background: var(--ct-bg);
	border-top: 1px solid var(--ct-line);
	box-shadow: 0 -6px 24px rgba(0, 0, 0, .09);
}

.consent[hidden] { display: none; }

.consent-inner {
	width: min(100% - 1rem, var(--ct-wrap-wide));
	margin-inline: auto;
	display: flex;
	flex-direction: column;
	gap: .9rem;
}

@media (min-width: 52rem) {
	.consent-inner { flex-direction: row; align-items: center; justify-content: space-between; }
}

.consent p { margin: 0; font-size: .9rem; color: var(--ct-ink-2); }

.consent-actions { display: flex; gap: .6rem; flex-wrap: wrap; }

.consent .btn { min-height: 44px; padding: 0 1.1rem; font-size: .95rem; }

/* ----------------------------------------------------------------- Print */

@media print {
	.site-header, .site-footer, .consent, .ad-slot, .skip-link { display: none !important; }
	body { background: #fff; color: #000; }
}