/*!
 * Postahead main stylesheet.
 * One file, no framework, ~14 KB unminified.
 * Design tokens -> base -> layout -> components -> motion.
 */

/* ---------- Fonts (self-hosted, subset, swap) ---------- */
@font-face {
	font-family: 'Bricolage Grotesque';
	src: url('../fonts/bricolage-grotesque-v7-latin-600.woff2') format('woff2');
	font-weight: 600;
	font-style: normal;
	font-display: swap;
}

@font-face {
	font-family: 'Figtree';
	src: url('../fonts/figtree-v9-latin-regular.woff2') format('woff2');
	font-weight: 400;
	font-style: normal;
	font-display: swap;
}

@font-face {
	font-family: 'Figtree';
	src: url('../fonts/figtree-v9-latin-600.woff2') format('woff2');
	font-weight: 600;
	font-style: normal;
	font-display: swap;
}

/* ---------- Design tokens ---------- */
:root {
	--pa-accent: #2E46E5;
	--pa-accent-soft: #E7EAFD;
	--pa-ink: #12141C;
	--pa-ink-soft: #5C616E;
	--pa-surface: #F7F8FA;
	--pa-card: #FFFFFF;
	--pa-line: #E4E6EB;
	--pa-container: 1200px;

	--pa-font-display: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
	--pa-font-body: 'Figtree', system-ui, -apple-system, sans-serif;

	/* Fluid type scale: minor third, clamped between 360px and 1280px viewports */
	--pa-text-sm: clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);
	--pa-text-base: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
	--pa-text-lg: clamp(1.2rem, 1.1rem + 0.4vw, 1.4rem);
	--pa-text-xl: clamp(1.5rem, 1.3rem + 0.9vw, 2rem);
	--pa-text-2xl: clamp(2rem, 1.6rem + 1.8vw, 3rem);
	--pa-text-hero: clamp(2.5rem, 1.8rem + 3.2vw, 4.25rem);

	--pa-space-1: 0.5rem;
	--pa-space-2: 1rem;
	--pa-space-3: 1.5rem;
	--pa-space-4: 2.5rem;
	--pa-space-5: 4rem;
	--pa-space-6: 6.5rem;

	--pa-radius: 14px;
	--pa-shadow: 0 1px 2px rgba(18, 20, 28, 0.04), 0 8px 24px rgba(18, 20, 28, 0.06);
	--pa-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
	margin: 0;
	background: var(--pa-surface);
	color: var(--pa-ink);
	font-family: var(--pa-font-body);
	font-size: var(--pa-text-base);
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4, h5, h6 {
	font-family: var(--pa-font-display);
	font-weight: 600;
	line-height: 1.15;
	letter-spacing: -0.015em;
	margin: 0 0 var(--pa-space-2);
	text-wrap: balance;
}

h1 { font-size: var(--pa-text-2xl); }
h2 { font-size: var(--pa-text-xl); }
h3 { font-size: var(--pa-text-lg); }

p { margin: 0 0 var(--pa-space-2); }

a {
	color: var(--pa-accent);
	text-decoration: none;
	transition: color 0.2s var(--pa-ease);
}

a:hover { color: color-mix(in srgb, var(--pa-accent) 80%, var(--pa-ink)); }

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

.screen-reader-text {
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	width: 1px;
	overflow: hidden;
	position: absolute;
	word-wrap: normal;
}

.skip-link {
	position: absolute;
	left: -9999px;
	z-index: 999;
	padding: 0.75rem 1.25rem;
	background: var(--pa-ink);
	color: #fff;
	border-radius: 0 0 var(--pa-radius) 0;
}

.skip-link:focus {
	left: 0;
	top: 0;
	clip: auto;
	clip-path: none;
	width: auto;
	height: auto;
}

/* ---------- Layout ---------- */
.pa-container {
	width: min(var(--pa-container), 100% - 2.5rem);
	margin-inline: auto;
}

.pa-main { min-height: 60vh; padding-block: var(--pa-space-4) var(--pa-space-6); }

.pa-layout.has-sidebar {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 320px;
	gap: var(--pa-space-5);
}

@media (max-width: 960px) {
	.pa-layout.has-sidebar { grid-template-columns: 1fr; }
}

/* ---------- Header ---------- */
.pa-header {
	position: sticky;
	top: 0;
	z-index: 50;
	background: color-mix(in srgb, var(--pa-surface) 85%, transparent);
	backdrop-filter: blur(12px);
	border-bottom: 1px solid var(--pa-line);
}

.pa-header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--pa-space-3);
	min-height: 72px;
}

.pa-site-title {
	font-family: var(--pa-font-display);
	font-size: var(--pa-text-lg);
	font-weight: 600;
	color: var(--pa-ink);
	letter-spacing: -0.02em;
}

.pa-nav-list {
	display: flex;
	gap: var(--pa-space-3);
	list-style: none;
	margin: 0;
	padding: 0;
}

.pa-nav-list a {
	color: var(--pa-ink-soft);
	font-size: var(--pa-text-sm);
	font-weight: 600;
	padding-block: 0.5rem;
	position: relative;
}

.pa-nav-list a::after {
	content: '';
	position: absolute;
	left: 0;
	bottom: 0;
	width: 100%;
	height: 2px;
	background: var(--pa-accent);
	border-radius: 2px;
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.25s var(--pa-ease);
}

.pa-nav-list a:hover { color: var(--pa-ink); }
.pa-nav-list a:hover::after,
.pa-nav-list .current-menu-item > a::after { transform: scaleX(1); }

/* Mobile nav */
.pa-nav-toggle {
	display: none;
	background: none;
	border: 1px solid var(--pa-line);
	border-radius: 10px;
	padding: 0.65rem 0.8rem;
	cursor: pointer;
}

.pa-nav-toggle-bar,
.pa-nav-toggle-bar::before,
.pa-nav-toggle-bar::after {
	display: block;
	width: 20px;
	height: 2px;
	background: var(--pa-ink);
	border-radius: 2px;
	transition: transform 0.25s var(--pa-ease), opacity 0.2s;
	content: '';
}

.pa-nav-toggle-bar { position: relative; }
.pa-nav-toggle-bar::before { position: absolute; top: -6px; }
.pa-nav-toggle-bar::after { position: absolute; top: 6px; }

.pa-nav-toggle[aria-expanded="true"] .pa-nav-toggle-bar { background: transparent; }
.pa-nav-toggle[aria-expanded="true"] .pa-nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.pa-nav-toggle[aria-expanded="true"] .pa-nav-toggle-bar::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 782px) {
	.pa-nav-toggle { display: block; }

	.pa-nav {
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		background: var(--pa-card);
		border-bottom: 1px solid var(--pa-line);
		box-shadow: var(--pa-shadow);
		display: none;
	}

	.pa-nav.is-open { display: block; }

	.pa-nav-list { flex-direction: column; gap: 0; padding: var(--pa-space-2); }
	.pa-nav-list a { display: block; padding: 0.85rem 1rem; }
	.pa-nav-list a::after { display: none; }
}

/* ---------- Post cards ---------- */
.pa-post-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
	gap: var(--pa-space-4);
}

.pa-card {
	background: var(--pa-card);
	border: 1px solid var(--pa-line);
	border-radius: var(--pa-radius);
	overflow: hidden;
	transition: transform 0.3s var(--pa-ease), box-shadow 0.3s var(--pa-ease);
}

.pa-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--pa-shadow);
}

.pa-card-thumb img { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }

.pa-card-body { padding: var(--pa-space-3); }

.pa-card-meta {
	display: flex;
	align-items: center;
	gap: var(--pa-space-2);
	font-size: var(--pa-text-sm);
	color: var(--pa-ink-soft);
	margin-bottom: var(--pa-space-1);
}

.pa-card-cat {
	background: var(--pa-accent-soft);
	color: var(--pa-accent);
	font-weight: 600;
	padding: 0.15rem 0.65rem;
	border-radius: 99px;
}

.pa-card-title { font-size: var(--pa-text-lg); margin-bottom: var(--pa-space-1); }
.pa-card-title a { color: var(--pa-ink); }
.pa-card-title a:hover { color: var(--pa-accent); }

.pa-card-excerpt { color: var(--pa-ink-soft); font-size: var(--pa-text-sm); }
.pa-card-excerpt p { margin: 0; }

/* ---------- Single post ---------- */
.pa-single-header { max-width: 760px; padding-top: var(--pa-space-3); }
.pa-single-title { font-size: var(--pa-text-2xl); }

.pa-breadcrumbs {
	font-size: var(--pa-text-sm);
	color: var(--pa-ink-soft);
	margin-bottom: var(--pa-space-2);
}

.pa-post-meta {
	display: flex;
	gap: var(--pa-space-1);
	color: var(--pa-ink-soft);
	font-size: var(--pa-text-sm);
	margin-bottom: var(--pa-space-3);
}

.pa-single-thumb img { border-radius: var(--pa-radius); margin-bottom: var(--pa-space-4); }

.pa-entry { max-width: 760px; }

.pa-entry :is(h2, h3) { margin-top: var(--pa-space-4); }

.pa-entry blockquote {
	margin: var(--pa-space-3) 0;
	padding: var(--pa-space-2) var(--pa-space-3);
	border-left: 3px solid var(--pa-accent);
	background: var(--pa-card);
	border-radius: 0 var(--pa-radius) var(--pa-radius) 0;
	font-size: var(--pa-text-lg);
	font-family: var(--pa-font-display);
}

.pa-entry pre {
	background: var(--pa-ink);
	color: #E8EAF2;
	padding: var(--pa-space-3);
	border-radius: var(--pa-radius);
	overflow-x: auto;
	font-size: var(--pa-text-sm);
}

/* ---------- Archive header / 404 / empty ---------- */
.pa-archive-header { margin-bottom: var(--pa-space-4); max-width: 760px; }
.pa-archive-title { font-size: var(--pa-text-2xl); }
.pa-archive-description { color: var(--pa-ink-soft); }

.pa-404 { text-align: center; max-width: 560px; padding-block: var(--pa-space-5); }

.pa-404-code {
	font-family: var(--pa-font-display);
	font-size: var(--pa-text-hero);
	font-weight: 600;
	color: var(--pa-accent);
	margin: 0;
	line-height: 1;
}

.pa-none { text-align: center; padding-block: var(--pa-space-5); }

/* ---------- Buttons & forms ---------- */
.pa-button,
.pa-entry .wp-block-button__link,
button[type="submit"],
input[type="submit"] {
	display: inline-block;
	background: var(--pa-accent);
	color: #fff;
	font-family: var(--pa-font-body);
	font-weight: 600;
	font-size: var(--pa-text-sm);
	padding: 0.85rem 1.75rem;
	border: none;
	border-radius: 99px;
	cursor: pointer;
	transition: transform 0.2s var(--pa-ease), box-shadow 0.2s var(--pa-ease);
}

.pa-button:hover,
button[type="submit"]:hover,
input[type="submit"]:hover {
	color: #fff;
	transform: translateY(-2px);
	box-shadow: 0 8px 20px color-mix(in srgb, var(--pa-accent) 35%, transparent);
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="search"],
textarea {
	width: 100%;
	padding: 0.85rem 1.1rem;
	font: inherit;
	font-size: var(--pa-text-sm);
	color: var(--pa-ink);
	background: var(--pa-card);
	border: 1px solid var(--pa-line);
	border-radius: 10px;
	transition: border-color 0.2s;
}

input:focus, textarea:focus { border-color: var(--pa-accent); outline: none; }

/* ---------- Sidebar & footer ---------- */
.pa-sidebar .widget { margin-bottom: var(--pa-space-4); }
.widget-title { font-size: var(--pa-text-base); margin-bottom: var(--pa-space-2); }

.pa-footer {
	background: var(--pa-ink);
	color: #B9BDC9;
	padding-block: var(--pa-space-5) var(--pa-space-3);
	margin-top: var(--pa-space-6);
}

.pa-footer a { color: #E8EAF2; }
.pa-footer a:hover { color: #fff; }

.pa-footer-widgets {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: var(--pa-space-4);
	margin-bottom: var(--pa-space-4);
}

.pa-footer .widget-title { color: #fff; }

.pa-footer-bottom {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	align-items: center;
	gap: var(--pa-space-2);
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	padding-top: var(--pa-space-3);
	font-size: var(--pa-text-sm);
}

.pa-footer-nav-list {
	display: flex;
	gap: var(--pa-space-3);
	list-style: none;
	margin: 0;
	padding: 0;
}

/* ---------- Pagination & comments ---------- */
.pagination { margin-top: var(--pa-space-5); }

.pagination .nav-links {
	display: flex;
	gap: var(--pa-space-1);
	justify-content: center;
	flex-wrap: wrap;
}

.pagination .page-numbers {
	padding: 0.5rem 1rem;
	border: 1px solid var(--pa-line);
	border-radius: 10px;
	color: var(--pa-ink-soft);
	background: var(--pa-card);
}

.pagination .page-numbers.current {
	background: var(--pa-accent);
	border-color: var(--pa-accent);
	color: #fff;
}

.pa-comments { max-width: 760px; margin-top: var(--pa-space-5); }
.pa-comment-list { list-style: none; padding: 0; }

.pa-comment-list .comment-body {
	background: var(--pa-card);
	border: 1px solid var(--pa-line);
	border-radius: var(--pa-radius);
	padding: var(--pa-space-3);
	margin-bottom: var(--pa-space-2);
}

/* ---------- Motion: scroll reveal ---------- */
.pa-motion .pa-reveal {
	opacity: 0;
	transform: translateY(18px);
	transition: opacity 0.7s var(--pa-ease), transform 0.7s var(--pa-ease);
}

.pa-motion .pa-reveal.is-visible {
	opacity: 1;
	transform: none;
}

/* Staggered children in grids */
.pa-motion .pa-post-grid .pa-reveal:nth-child(2) { transition-delay: 0.08s; }
.pa-motion .pa-post-grid .pa-reveal:nth-child(3) { transition-delay: 0.16s; }
.pa-motion .pa-post-grid .pa-reveal:nth-child(4) { transition-delay: 0.24s; }

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

	.pa-motion .pa-reveal {
		opacity: 1;
		transform: none;
		transition: none;
	}

	*, *::before, *::after {
		animation-duration: 0.01ms !important;
		transition-duration: 0.01ms !important;
	}
}