/*
 * Z-Push site theme.
 */

:root {
	--text: #374151;
	--muted: #6b7280;
	--heading: #111827;
	--accent: #1f7a83;          /* links and highlights, AA contrast on white */
	--accent-soft: #7ebec5;     /* Z-Push teal */
	--accent-tint: #eef7f8;
	--surface: #f7f9fa;
	--border: #e5e7eb;
	--radius: 10px;
	--header-height: 72px;
	--max-width: 1160px;
	--sidebar: 300px;
	--gap: 56px;
	--font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	--mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}

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

html {
	-webkit-text-size-adjust: 100%;
	scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
	margin: 0;
	background: #fff;
	color: var(--text);
	font: 400 16px/1.7 var(--font);
	-webkit-font-smoothing: antialiased;
}

a {
	color: var(--accent);
	text-decoration: underline;
	text-decoration-color: rgba(31, 122, 131, 0.3);
	text-underline-offset: 3px;
	transition: color 0.15s, text-decoration-color 0.15s;
}

a:hover {
	text-decoration-color: currentColor;
}

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

img {
	max-width: 100%;
	height: auto;
	border-radius: 6px;
}

h1, h2, h3, h4, h5, h6 {
	margin: 1.6em 0 0.5em;
	color: var(--heading);
	font-weight: 700;
	line-height: 1.25;
	letter-spacing: -0.015em;
}

h1 { font-size: 2.25rem; letter-spacing: -0.025em; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.1rem; }
h5, h6 { font-size: 1rem; }

p {
	margin: 0 0 1.1em;
}

strong, b {
	font-weight: 600;
	color: var(--heading);
}

ul, ol {
	margin: 0 0 1.2em;
	padding-left: 1.4em;
}

li + li {
	margin-top: 0.3em;
}

code {
	padding: 0.15em 0.35em;
	border-radius: 4px;
	background: var(--surface);
	font: 0.875em var(--mono);
}

pre {
	margin: 0 0 1.4em;
	padding: 16px 20px;
	overflow: auto;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	background: var(--surface);
	font: 0.875rem/1.6 var(--mono);
}

pre code {
	padding: 0;
	background: none;
	font-size: inherit;
}

blockquote {
	margin: 0 0 1.4em;
	padding: 4px 20px;
	border-left: 3px solid var(--accent-soft);
	color: var(--muted);
}

hr {
	margin: 2em 0;
	border: 0;
	border-top: 1px solid var(--border);
}

.container {
	width: 100%;
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0 24px;
}

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

/* Header */

.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	height: var(--header-height);
	border-bottom: 1px solid var(--border);
	background: rgba(255, 255, 255, 0.92);
	-webkit-backdrop-filter: saturate(180%) blur(10px);
	backdrop-filter: saturate(180%) blur(10px);
}

.site-header .container {
	display: flex;
	align-items: center;
	gap: 8px;
	height: 100%;
}

.site-logo {
	display: flex;
	align-items: center;
	margin-right: auto;
}

.site-logo img {
	display: block;
	height: 38px;
	width: auto;
	border-radius: 0;
}

.site-nav ul {
	display: flex;
	gap: 2px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.site-nav li + li {
	margin: 0;
}

.site-nav a {
	display: block;
	padding: 8px 12px;
	border-radius: 8px;
	color: var(--text);
	font-size: 15px;
	font-weight: 500;
	text-decoration: none;
}

.site-nav a:hover {
	background: var(--surface);
	color: var(--heading);
}

.site-nav .current a {
	background: var(--accent-tint);
	color: var(--accent);
}

.icon-button {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	padding: 0;
	border: 0;
	border-radius: 8px;
	background: none;
	color: var(--text);
	cursor: pointer;
}

.icon-button:hover {
	background: var(--surface);
	color: var(--heading);
}

.icon-button svg {
	width: 20px;
	height: 20px;
}

.menu-toggle {
	display: none;
}

/* Search, shown as a panel under the header */

.search-bar {
	position: absolute;
	top: 100%;
	right: 0;
	left: 0;
	display: none;
	border-bottom: 1px solid var(--border);
	background: #fff;
	box-shadow: 0 12px 24px -12px rgba(17, 24, 39, 0.15);
}

.search-open .search-bar {
	display: block;
}

.search-bar .container {
	height: 72px;
}

.search-bar input[type=search] {
	flex: 1;
	height: 44px;
	padding: 0 16px;
	border: 1px solid var(--border);
	border-radius: 8px;
	outline: 0;
	background: var(--surface);
	color: var(--heading);
	font: inherit;
}

.search-bar input[type=search]:focus {
	border-color: var(--accent-soft);
	background: #fff;
	box-shadow: 0 0 0 3px var(--accent-tint);
}

/* Layout: content column and sidebar */

.site-main .container {
	display: grid;
	grid-template-columns: minmax(0, 1fr) var(--sidebar);
	gap: var(--gap);
	padding-top: 48px;
	padding-bottom: 72px;
}

.content {
	min-width: 0;
}

/* Posts and pages */

.entry-title {
	margin: 0 0 12px;
}

.entry-title a {
	color: inherit;
	text-decoration: none;
}

.entry-title a:hover {
	color: var(--accent);
}

.entry-meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 4px 14px;
	margin: 0 0 12px;
	color: var(--muted);
	font-size: 14px;
}

.entry-meta a {
	color: inherit;
	text-decoration: none;
}

.entry-meta a:hover {
	color: var(--accent);
}

.entry-meta .tag {
	padding: 1px 10px;
	border-radius: 999px;
	background: var(--accent-tint);
	color: var(--accent);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.02em;
	text-transform: uppercase;
}

.entry--post,
.entry--page {
	max-width: 760px;
}

.entry--post .entry-title,
.entry--page .entry-title {
	margin-bottom: 16px;
}

.entry--post .entry-meta {
	margin-bottom: 32px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--border);
}

.entry--page .entry-title {
	margin-bottom: 28px;
}

.entry-content {
	overflow-wrap: break-word;
	font-size: 17px;
}

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

.alignleft { float: left; margin: 0 20px 16px 0; }
.alignright { float: right; margin: 0 0 16px 20px; }
.aligncenter { display: block; margin: 0 auto 16px; }

/* Listings (News, author pages): one card per post */

.entry--summary {
	position: relative;
	margin: 0 0 20px;
	padding: 24px 28px;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	transition: border-color 0.15s, box-shadow 0.15s;
}

.entry--summary:hover {
	border-color: var(--accent-soft);
	box-shadow: 0 6px 18px -10px rgba(17, 24, 39, 0.2);
}

.entry--summary .entry-meta {
	margin-bottom: 8px;
}

.entry--summary .entry-title {
	margin-bottom: 8px;
	font-size: 1.35rem;
}

.entry--summary p {
	margin-bottom: 10px;
	color: var(--muted);
}

.read-more {
	font-size: 15px;
	font-weight: 600;
	text-decoration: none;
}

/* Archives page */

.archive-list h2 {
	margin: 40px 0 8px;
	padding-bottom: 8px;
	border-bottom: 1px solid var(--border);
	font-size: 1.5rem;
}

.archive-list h4 {
	margin: 20px 0 6px;
	color: var(--muted);
	font-size: 13px;
	font-weight: 600;
	letter-spacing: 0.06em;
	text-transform: uppercase;
}

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

.archive-list li {
	display: flex;
	justify-content: space-between;
	gap: 16px;
	margin: 0;
	padding: 6px 0;
}

.archive-list li a {
	text-decoration: none;
}

.archive-list li a:hover {
	text-decoration: underline;
}

.archive-list .date {
	flex: none;
	color: var(--muted);
	font-size: 14px;
	font-variant-numeric: tabular-nums;
}

/* Sidebar widgets */

.widget {
	margin-bottom: 36px;
	font-size: 15px;
}

.widget-title {
	margin: 0 0 12px;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--border);
	color: var(--muted);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

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

.widget li {
	margin: 0;
	padding: 5px 0;
	line-height: 1.45;
}

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

.widget a:hover {
	color: var(--accent);
}

.widget details ul {
	padding: 2px 0 6px 18px;
}

.widget details li {
	padding: 3px 0;
}

.widget summary {
	color: var(--heading);
	font-weight: 500;
	cursor: pointer;
}

.widget summary::marker {
	color: var(--accent-soft);
}

/* Footer */

.site-footer {
	border-top: 1px solid var(--border);
	background: var(--surface);
	color: var(--muted);
	font-size: 14px;
}

.site-footer .container {
	padding-top: 28px;
	padding-bottom: 28px;
}

.site-footer p {
	margin: 0;
}

.site-footer a {
	color: inherit;
	font-weight: 500;
}

.site-footer a:hover {
	color: var(--accent);
}

/* Tablets */

@media (max-width: 980px) {
	.site-main .container {
		grid-template-columns: minmax(0, 1fr);
		gap: 40px;
	}

	.site-nav {
		position: absolute;
		top: 100%;
		right: 0;
		left: 0;
		display: none;
		padding: 8px 16px 16px;
		border-bottom: 1px solid var(--border);
		background: #fff;
		box-shadow: 0 12px 24px -12px rgba(17, 24, 39, 0.15);
	}

	.menu-open .site-nav {
		display: block;
	}

	.site-nav ul {
		flex-direction: column;
	}

	.site-nav a {
		padding: 12px;
	}

	.menu-toggle {
		display: flex;
	}
}

/* Phones */

@media (max-width: 600px) {
	:root {
		--header-height: 64px;
	}

	body {
		font-size: 15px;
	}

	.container {
		padding: 0 18px;
	}

	h1 { font-size: 1.75rem; }

	.site-logo img {
		height: 32px;
	}

	.site-main .container {
		padding-top: 32px;
		padding-bottom: 48px;
	}

	.entry-content {
		font-size: 16px;
	}

	.entry--summary {
		padding: 18px 20px;
	}

	.entry--summary .entry-title {
		font-size: 1.2rem;
	}
}