/* GearVox Release Notes — matches the GearVox web app (Carbon g10 / g90, teal accent). */

:root {
	--bg: #f4f4f4;
	--layer: #ffffff;
	--layer-hover: #e8e8e8;
	--text: #161616;
	--text-muted: #525252;
	--text-subtle: #6f6f6f;
	--border: #e0e0e0;
	--border-strong: #8d8d8d;
	--header-bg: #161616;
	--header-text: #f4f4f4;
	--header-border: #393939;
	--accent: #09d1cb;
	--accent-strong: #069e99;
	--link: #00807c;
	--accent-soft: rgba(191, 246, 245, 1);
	--focus: #09d1cb;
	--code-bg: #f2f4f8;

	--tag-new-bg: #9ef0f0;
	--tag-new-fg: #004144;
	--tag-improved-bg: #d0e2ff;
	--tag-improved-fg: #002d9c;
	--tag-fixed-bg: #e8daff;
	--tag-fixed-fg: #491d8b;
	--tag-changed-bg: #fcf4d6;
	--tag-changed-fg: #684e00;
	--tag-removed-bg: #ffd7d9;
	--tag-removed-fg: #750e13;
	--tag-draft-bg: #e0e0e0;
	--tag-draft-fg: #393939;

	--header-h: 48px;
	--sidebar-w: 256px;
	color-scheme: light;
}

@media (prefers-color-scheme: dark) {
	:root {
		--bg: #262626;
		--layer: #393939;
		--layer-hover: #474747;
		--text: #f4f4f4;
		--text-muted: #c6c6c6;
		--text-subtle: #a8a8a8;
		--border: #525252;
		--border-strong: #8d8d8d;
		--header-bg: #161616;
		--link: #09d1cb;
		--accent-soft: #0d3b3a;
		--code-bg: #262626;

		--tag-new-bg: #005d5d;
		--tag-new-fg: #9ef0f0;
		--tag-improved-bg: #0043ce;
		--tag-improved-fg: #d0e2ff;
		--tag-fixed-bg: #6929c4;
		--tag-fixed-fg: #e8daff;
		--tag-changed-bg: #483700;
		--tag-changed-fg: #fddc69;
		--tag-removed-bg: #a2191f;
		--tag-removed-fg: #ffd7d9;
		--tag-draft-bg: #525252;
		--tag-draft-fg: #f4f4f4;
		color-scheme: dark;
	}
}

* {
	box-sizing: border-box;
}

html {
	scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
	margin: 0;
	background: var(--bg);
	color: var(--text);
	font-family: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
	font-size: 14px;
	line-height: 1.5;
	letter-spacing: 0.16px;
	-webkit-text-size-adjust: 100%;
}

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

a:hover {
	text-decoration: underline;
}

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

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

/* ---------- Header (Carbon "classic" UI shell) ---------- */

.skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	background: var(--accent);
	color: #161616;
	padding: 12px 16px;
	z-index: 100;
}

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

.site-header {
	position: sticky;
	top: 0;
	z-index: 50;
	height: var(--header-h);
	display: flex;
	align-items: center;
	background: var(--header-bg);
	color: var(--header-text);
	border-bottom: 1px solid var(--header-border);
}

.brand {
	display: flex;
	align-items: center;
	gap: 12px;
	height: 100%;
	padding: 0 16px;
	color: var(--header-text);
	text-decoration: none;
	white-space: nowrap;
}

.brand:hover {
	text-decoration: none;
}

.brand img {
	height: 22px;
	width: auto;
}

.brand span {
	font-size: 14px;
	font-weight: 600;
	letter-spacing: 0.1px;
	padding-left: 12px;
	border-left: 1px solid #525252;
	line-height: 20px;
}

.menu-toggle {
	display: none;
	width: var(--header-h);
	height: var(--header-h);
	align-items: center;
	justify-content: center;
	background: transparent;
	color: var(--header-text);
	border: 0;
	cursor: pointer;
}

.menu-toggle:hover {
	background: #353535;
}

.header-links {
	margin-left: auto;
	display: flex;
	height: 100%;
}

.header-links a {
	display: flex;
	align-items: center;
	padding: 0 16px;
	color: #c6c6c6;
	font-size: 14px;
	text-decoration: none;
}

.header-links a:hover {
	background: #353535;
	color: #f4f4f4;
}

.header-links .rss {
	width: var(--header-h);
	justify-content: center;
	padding: 0;
}

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

.layout {
	display: flex;
	min-height: calc(100vh - var(--header-h));
}

.sidebar {
	width: var(--sidebar-w);
	flex-shrink: 0;
	background: var(--layer);
	border-right: 1px solid var(--border);
	padding: 16px 0 40px;
	position: sticky;
	top: var(--header-h);
	height: calc(100vh - var(--header-h));
	overflow-y: auto;
}

.sidebar h2 {
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.32px;
	color: var(--text-muted);
	margin: 20px 16px 4px;
}

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

.sidebar a {
	display: flex;
	justify-content: space-between;
	align-items: center;
	min-height: 32px;
	padding: 6px 16px;
	color: var(--text-muted);
	font-size: 14px;
	font-weight: 600;
	text-decoration: none;
	border-left: 3px solid transparent;
}

.sidebar a:hover {
	background: var(--layer-hover);
	color: var(--text);
}

.sidebar a[aria-current='page'],
.sidebar a.active {
	border-left-color: var(--accent);
	background: var(--layer-hover);
	color: var(--text);
}

.sidebar .count {
	font-size: 12px;
	font-weight: 400;
	color: var(--text-subtle);
}

main {
	flex: 1;
	min-width: 0;
	padding: 32px 32px 64px;
}

main > * {
	max-width: 960px;
}

/* ---------- Page header ---------- */

.page-header {
	margin-bottom: 32px;
}

h1 {
	font-size: 32px;
	line-height: 1.25;
	font-weight: 400;
	margin: 0 0 8px;
}

.lead {
	font-size: 16px;
	color: var(--text-muted);
	margin: 0 0 24px;
}

.filters {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.chip {
	font: inherit;
	font-size: 14px;
	height: 32px;
	padding: 0 16px;
	border-radius: 16px;
	border: 1px solid var(--border-strong);
	background: transparent;
	color: var(--text);
	cursor: pointer;
}

.chip:hover {
	background: var(--layer-hover);
}

.chip[aria-pressed='true'] {
	background: var(--text);
	border-color: var(--text);
	color: var(--bg);
}

/* ---------- Release list ---------- */

.month-heading {
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.32px;
	text-transform: uppercase;
	color: var(--text-muted);
	margin: 0 0 12px;
	padding-bottom: 8px;
	border-bottom: 1px solid var(--border);
}

.month {
	margin-bottom: 40px;
}

.month[hidden] {
	display: none;
}

.release {
	display: grid;
	grid-template-columns: 160px minmax(0, 1fr);
	gap: 24px;
	background: var(--layer);
	padding: 24px;
	margin-bottom: 16px;
	border-top: 3px solid transparent;
}

.release:target {
	border-top-color: var(--accent);
}

.release[hidden] {
	display: none;
}

.release-meta {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 8px;
	color: var(--text-muted);
	font-size: 14px;
}

.release-meta time {
	font-weight: 600;
	color: var(--text);
}

.version {
	font-family: 'IBM Plex Mono', Menlo, monospace;
	font-size: 12px;
	padding: 2px 8px;
	background: var(--bg);
	border: 1px solid var(--border);
}

.release-title {
	font-size: 20px;
	font-weight: 400;
	line-height: 1.4;
	margin: 0 0 4px;
}

h1.release-title {
	font-size: 32px;
	line-height: 1.25;
}

.release-title a {
	color: var(--text);
}

.release-title a:hover {
	color: var(--link);
	text-decoration: none;
}

.release-summary {
	font-size: 16px;
	color: var(--text-muted);
	margin: 0 0 12px;
}

.release-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 4px;
	margin-bottom: 16px;
}

/* ---------- Tags (Carbon tag) ---------- */

.tag {
	display: inline-flex;
	align-items: center;
	height: 24px;
	padding: 0 8px;
	border-radius: 12px;
	font-size: 12px;
	font-weight: 400;
	letter-spacing: 0.32px;
	white-space: nowrap;
}

.tag-new {
	background: var(--tag-new-bg);
	color: var(--tag-new-fg);
}
.tag-improved {
	background: var(--tag-improved-bg);
	color: var(--tag-improved-fg);
}
.tag-fixed {
	background: var(--tag-fixed-bg);
	color: var(--tag-fixed-fg);
}
.tag-changed {
	background: var(--tag-changed-bg);
	color: var(--tag-changed-fg);
}
.tag-removed {
	background: var(--tag-removed-bg);
	color: var(--tag-removed-fg);
}
.tag-draft {
	background: var(--tag-draft-bg);
	color: var(--tag-draft-fg);
}

/* ---------- Release body ---------- */

.prose {
	font-size: 16px;
	line-height: 1.5;
}

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

.prose .kind-heading {
	margin: 24px 0 8px;
}

.prose .kind-heading:first-child {
	margin-top: 8px;
}

.prose h3,
.prose h4 {
	font-size: 16px;
	font-weight: 600;
	margin: 20px 0 8px;
}

.prose p,
.prose ul,
.prose ol {
	margin: 0 0 12px;
}

.prose ul,
.prose ol {
	padding-left: 20px;
}

.prose li {
	margin-bottom: 6px;
}

.prose li::marker {
	color: var(--text-subtle);
}

.prose img {
	display: block;
	margin: 16px 0;
	border: 1px solid var(--border);
}

.prose code {
	font-family: 'IBM Plex Mono', Menlo, monospace;
	font-size: 0.875em;
	background: var(--code-bg);
	padding: 1px 4px;
}

.prose blockquote {
	margin: 0 0 12px;
	padding: 12px 16px;
	border-left: 3px solid var(--accent);
	background: var(--bg);
	color: var(--text-muted);
}

.prose blockquote > :last-child {
	margin-bottom: 0;
}

.prose table {
	border-collapse: collapse;
	width: 100%;
	margin: 0 0 16px;
	font-size: 14px;
	display: block;
	overflow-x: auto;
}

.prose th,
.prose td {
	padding: 8px 12px;
	text-align: left;
	border-bottom: 1px solid var(--border);
}

.prose th {
	background: var(--bg);
	font-weight: 600;
}

/* ---------- Single release page ---------- */

.breadcrumb {
	font-size: 14px;
	color: var(--text-muted);
	margin-bottom: 16px;
}

.breadcrumb span[aria-hidden] {
	margin: 0 6px;
}

.page-nav {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
	margin-top: 32px;
}

.page-nav a {
	display: block;
	background: var(--layer);
	padding: 16px;
	color: var(--text);
	text-decoration: none;
	border-bottom: 2px solid transparent;
}

.page-nav a:hover {
	background: var(--layer-hover);
	border-bottom-color: var(--accent);
}

.page-nav small {
	display: block;
	font-size: 12px;
	color: var(--text-muted);
	margin-bottom: 2px;
}

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

.empty {
	background: var(--layer);
	padding: 32px 24px;
	color: var(--text-muted);
	font-size: 16px;
}

.empty[hidden] {
	display: none;
}

.site-footer {
	display: flex;
	justify-content: space-between;
	gap: 16px;
	margin-top: 48px;
	padding-top: 16px;
	border-top: 1px solid var(--border);
	font-size: 12px;
	color: var(--text-muted);
}

/* ---------- Small screens ---------- */

@media (max-width: 1056px) {
	.menu-toggle {
		display: inline-flex;
	}

	.brand {
		padding-left: 4px;
	}

	.sidebar {
		position: fixed;
		left: 0;
		top: var(--header-h);
		z-index: 40;
		transform: translateX(-100%);
		transition: transform 0.15s ease;
		visibility: hidden;
	}

	body.nav-open .sidebar {
		transform: none;
		visibility: visible;
		box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
	}
}

@media (max-width: 672px) {
	main {
		padding: 24px 16px 48px;
	}

	.header-links a:not(.rss) {
		display: none;
	}

	.brand span {
		font-size: 13px;
	}

	.release {
		grid-template-columns: minmax(0, 1fr);
		gap: 8px;
		padding: 16px;
	}

	.release-meta {
		flex-direction: row;
		align-items: center;
		flex-wrap: wrap;
	}

	h1,
	h1.release-title {
		font-size: 28px;
	}

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

	.page-nav .next {
		grid-column: 1;
		grid-row: 1;
	}

	.site-footer {
		flex-direction: column;
		gap: 4px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.sidebar {
		transition: none;
	}
}

@media print {
	.site-header,
	.sidebar,
	.filters,
	.page-nav {
		display: none;
	}

	main {
		padding: 0;
	}

	.release {
		break-inside: avoid;
	}
}