:root {
	--bocp-red: #dc2626;
	--bocp-red-hover: #b91c1c;
	--bocp-red-active: #991b1b;
	--bocp-red-soft: #fef2f2;
	--bocp-red-border: #fecaca;
	--gray-50: #f9fafb;
	--gray-100: #f3f4f6;
	--gray-200: #e5e7eb;
	--gray-300: #d1d5db;
	--gray-500: #6b7280;
	--gray-600: #4b5563;
	--gray-700: #374151;
	--gray-800: #1f2937;
	--gray-900: #111827;
	--success: #15803d;
	--warning: #b45309;
	--text-strong: var(--gray-900);
	--text-body: var(--gray-700);
	--text-muted: var(--gray-600);
	--border-subtle: var(--gray-200);
	--border-default: var(--gray-300);
	--link: var(--bocp-red-hover);
	--link-hover: var(--bocp-red-active);
	--focus-ring: rgba(220, 38, 38, 0.35);
	--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
	--radius-sm: 5px;
	--radius-md: 8px;
	--radius-lg: 12px;
	--radius-pill: 999px;
	--shadow-xs: 0 1px 2px rgba(17, 24, 39, 0.06);
	--shadow-sm: 0 1px 3px rgba(17, 24, 39, 0.08), 0 1px 2px rgba(17, 24, 39, 0.04);
	--shadow-md: 0 4px 12px rgba(17, 24, 39, 0.08), 0 2px 4px rgba(17, 24, 39, 0.04);
	--measure: 1040px;
	--page-max: 1440px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 16px; }
body {
	margin: 0;
	font-family: var(--font-sans);
	font-size: 16px;
	line-height: 1.65;
	color: var(--text-body);
	background: #fff;
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}
input, button, textarea, select { font: inherit; }
img, video, iframe, embed, object { max-width: 100%; }
a { color: var(--link); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
a:hover { color: var(--link-hover); text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible {
	outline: 3px solid var(--focus-ring);
	outline-offset: 2px;
	border-radius: var(--radius-sm);
}

h1, h2, h3, h4, h5, h6 {
	color: var(--text-strong);
	line-height: 1.25;
	letter-spacing: -0.01em;
	margin: 1.6em 0 0.5em;
	font-weight: 700;
}
h1 { font-size: clamp(26px, 4.5vw, 36px); letter-spacing: -0.02em; margin: 0 0 0.6em; }
h2 { font-size: clamp(21px, 3.2vw, 26px); }
h3 { font-size: 20px; }
h4 { font-size: 18px; }
h5, h6 { font-size: 16px; }
p, ul, ol, dl, blockquote, pre, table, figure { margin: 0 0 1em; }
ul, ol { padding-left: 1.4em; }
li { margin: 0.3em 0; }
li > ul, li > ol { margin: 0.3em 0; }
ul li p, ol li p { display: inline; margin: 0; }
hr { border: 0; border-top: 1px solid var(--border-subtle); margin: 2em 0; }
strong, b { color: var(--text-strong); }

.sr-only {
	position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
	position: absolute; left: 8px; top: -60px; z-index: 100;
	background: var(--gray-900); color: #fff; padding: 8px 14px; border-radius: var(--radius-sm);
}
.skip-link:focus { top: 8px; color: #fff; }

.header-band {
	background: #fff;
	border-bottom: 1px solid var(--border-subtle);
	box-shadow: var(--shadow-xs);
	border-top: 3px solid var(--bocp-red);
}
.header-inner {
	max-width: var(--page-max);
	margin: 0 auto;
	padding: 10px 16px 14px;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 10px 16px;
}
.brand {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	text-decoration: none;
	color: var(--text-strong);
	min-width: 0;
}
.brand:hover { color: var(--text-strong); }
.logo { height: 36px; width: auto; display: block; }
.site-title {
	font-size: 18px;
	font-weight: 600;
	letter-spacing: -0.01em;
	padding-left: 10px;
	border-left: 1px solid var(--border-default);
	line-height: 1.2;
}
.head-link {
	margin-left: auto;
	font-size: 14px;
	font-weight: 600;
	color: var(--gray-700);
	text-decoration: none;
	padding: 6px 12px;
	border-radius: var(--radius-pill);
	border: 1px solid var(--border-default);
}
.head-link:hover { color: var(--bocp-red-hover); border-color: var(--bocp-red-border); background: var(--bocp-red-soft); }
.head-search-div {
	order: 3;
	flex: 1 1 100%;
	display: flex;
	margin: 0;
	position: relative;
}
.head-search-div input {
	flex: 1;
	min-width: 0;
	height: 46px;
	padding: 0 52px 0 16px;
	font-size: 16px;
	color: var(--text-strong);
	background: var(--gray-50);
	border: 1px solid var(--border-default);
	border-radius: var(--radius-pill);
	box-shadow: inset 0 1px 2px rgba(17, 24, 39, 0.04);
	-webkit-appearance: none;
	appearance: none;
	transition: border-color 120ms, box-shadow 120ms, background 120ms;
}
.head-search-div input::placeholder { color: var(--gray-500); }
.head-search-div input:focus {
	outline: none;
	background: #fff;
	border-color: var(--bocp-red);
	box-shadow: 0 0 0 3px var(--focus-ring);
}
.head-search-btn {
	position: absolute;
	right: 5px;
	top: 5px;
	width: 36px;
	height: 36px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border: 0;
	border-radius: var(--radius-pill);
	background: var(--bocp-red);
	color: #fff;
	cursor: pointer;
}
.head-search-btn:hover { background: var(--bocp-red-hover); }

.main-wrapper {
	flex: 1 0 auto;
	width: 100%;
	max-width: var(--page-max);
	margin: 0 auto;
	padding: 24px 16px 48px;
	display: flex;
	flex-direction: column;
	gap: 24px;
}
.content {
	flex: 1;
	min-width: 0;
	display: block;
}
.content > .kb-article-view,
.content > .kb-feedback,
.content > .search-title,
.content > .kb-empty {
	max-width: var(--measure);
}

.sidebar {
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-lg);
	background: #fff;
	padding: 8px;
	font-size: 14px;
}
.side-title {
	margin: 4px 8px 8px;
	font-size: 12px;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--gray-700);
}
.side-group { border-top: 1px solid var(--border-subtle); }
.side-group:first-of-type { border-top: 0; }
.side-group summary {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 9px 8px;
	cursor: pointer;
	font-weight: 600;
	color: var(--text-strong);
	list-style: none;
	border-radius: var(--radius-sm);
}
.side-group summary::-webkit-details-marker { display: none; }
.side-group summary::before {
	content: '';
	width: 6px;
	height: 6px;
	border-right: 2px solid var(--gray-700);
	border-bottom: 2px solid var(--gray-700);
	transform: rotate(-45deg);
	transition: transform 0.15s;
	flex-shrink: 0;
}
.side-group[open] summary::before { transform: rotate(45deg); }
.side-group summary:hover { background: var(--gray-50); }
.side-count {
	margin-left: auto;
	font-size: 12px;
	font-weight: 500;
	color: var(--gray-700);
	background: var(--gray-50);
	border-radius: var(--radius-pill);
	padding: 0 7px;
	line-height: 1.6;
}
.sidebar ul {
	list-style: none;
	margin: 0 0 8px;
	padding: 0 0 0 14px;
}
.sidebar ul li { margin: 0; }
.sidebar ul li a {
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 6px 8px;
	line-height: 1.35;
	color: var(--gray-700);
	text-decoration: none;
	border-left: 3px solid transparent;
	border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.sidebar ul li a:hover { background: var(--gray-50); border-left-color: var(--bocp-red-border); color: var(--bocp-red-hover); }
.sidebar ul li.active a { background: var(--bocp-red-soft); border-left-color: var(--bocp-red); color: var(--bocp-red-hover); font-weight: 600; }

.kb-article-view { overflow-wrap: break-word; }
.kb-article-view img {
	max-width: 100% !important;
	height: auto !important;
	vertical-align: middle;
	border-radius: var(--radius-sm);
	box-shadow: var(--shadow-sm);
	border: 1px solid var(--border-subtle);
	margin: 6px 0 18px;
}
.kb-article-view td img, .kb-article-view th img { margin: 3px; }
.kb-article-view img[width="16"], .kb-article-view img[width="20"], .kb-article-view img[width="24"] {
	box-shadow: none; border: 0; margin: 0 2px;
}
.kb-article-view iframe, .kb-article-view video { display: block; border: 0; border-radius: var(--radius-md); margin: 0 0 1em; }
.kb-article-view [style*="width"] { max-width: 100% !important; }
.kb-article-view table {
	display: block;
	width: auto !important;
	max-width: 100%;
	height: auto !important;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	border-collapse: collapse;
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-md);
	font-size: 15px;
	line-height: 1.5;
}
.kb-article-view th, .kb-article-view td {
	padding: 8px 12px;
	border: 1px solid var(--border-subtle);
	vertical-align: top;
	text-align: left;
	height: auto !important;
}
.kb-article-view th, .kb-article-view thead td { background: var(--gray-50); color: var(--text-strong); font-weight: 600; }
.kb-article-view tbody tr:nth-child(even) td { background: #fcfcfd; }
.kb-article-view table p { margin: 0 0 0.5em; }
.kb-article-view table p:last-child { margin-bottom: 0; }
.kb-article-view blockquote {
	padding: 12px 16px;
	border-left: 4px solid var(--bocp-red);
	background: var(--bocp-red-soft);
	border-radius: 0 var(--radius-md) var(--radius-md) 0;
	color: var(--gray-800);
}
.kb-article-view h2 { padding-top: 0.4em; border-top: 1px solid var(--border-subtle); }
.kb-article-view h1 + h2, .kb-article-view h2:first-child { border-top: 0; padding-top: 0; }

code, kbd, samp {
	font-family: var(--font-mono);
	font-size: 0.9em;
	background: var(--gray-100);
	border: 1px solid var(--border-subtle);
	border-radius: 4px;
	padding: 1px 5px;
	color: var(--gray-900);
}
pre {
	font-family: var(--font-mono);
	font-size: 14px;
	line-height: 1.5;
	background: var(--gray-900);
	color: #f9fafb;
	padding: 14px 16px;
	border-radius: var(--radius-md);
	overflow-x: auto;
	white-space: pre;
}
pre code { background: none; border: 0; padding: 0; color: inherit; font-size: inherit; }

.kb-lead { font-size: 18px; color: var(--text-muted); }

.kb-art-list {
	list-style: none;
	padding: 0;
	margin: 0 0 1.5em;
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-lg);
	overflow: hidden;
	background: #fff;
}
.kb-art-list li { margin: 0; border-top: 1px solid var(--border-subtle); }
.kb-art-list li:first-child { border-top: 0; }
.kb-art-list a {
	display: block;
	padding: 12px 40px 12px 16px;
	color: var(--text-strong);
	text-decoration: none;
	font-weight: 500;
	position: relative;
}
.kb-art-list a::after {
	content: "\2192";
	position: absolute;
	right: 16px;
	top: 50%;
	transform: translateY(-50%);
	color: var(--gray-500);
	transition: transform 120ms, color 120ms;
}
.kb-art-list a:hover { background: var(--gray-50); color: var(--bocp-red-hover); }
.kb-art-list a:hover::after { color: var(--bocp-red-hover); transform: translate(3px, -50%); }

.search-title { margin-bottom: 0.8em; }
.kb-search > h2 { font-size: 20px; }
.search-result {
	padding: 16px 18px;
	margin: 0 0 12px;
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-lg);
	background: #fff;
	box-shadow: var(--shadow-xs);
	transition: box-shadow 120ms, border-color 120ms;
}
.search-result:hover { box-shadow: var(--shadow-md); border-color: var(--border-default); }
.search-result h2 { font-size: 19px; margin: 0 0 2px; border: 0; padding: 0; }
.search-result h2 a { color: var(--text-strong); text-decoration: none; }
.search-result h2 a:hover { color: var(--bocp-red-hover); text-decoration: underline; }
.search-cat {
	display: inline-block;
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--text-muted);
	margin: 0 0 6px;
}
.search-snippet { font-size: 15px; color: var(--text-body); }
.search-more { font-weight: 600; white-space: nowrap; }
.kb-empty { color: var(--text-muted); }

.kb-feedback {
	margin: 40px 0 20px;
	padding: 20px 24px;
	background: var(--gray-50);
	border-radius: var(--radius-lg);
	border: 1px solid var(--border-subtle);
}
.kb-feedback-prompt {
	font-size: 16px;
	font-weight: 600;
	color: var(--text-strong);
	margin: 0 0 6px;
}
.kb-stars span {
	font-size: 34px;
	line-height: 1;
	cursor: pointer;
	color: var(--gray-300);
	transition: color 0.1s, transform 0.1s;
	padding: 0 3px;
	display: inline-block;
}
.kb-stars span:hover { transform: scale(1.1); }
.kb-stars span.hover,
.kb-stars span.active { color: #f59e0b; }
.kb-feedback-form { margin-top: 4px; }
.kb-feedback-fields label {
	display: block;
	font-size: 14px;
	color: var(--gray-700);
	margin-bottom: 12px;
}
.kb-feedback-fields textarea {
	display: block;
	width: 100%;
	max-width: 600px;
	margin-top: 5px;
	padding: 8px 10px;
	font-size: 15px;
	color: var(--text-strong);
	background: #fff;
	border: 1px solid var(--border-default);
	border-radius: var(--radius-md);
	resize: vertical;
}
.kb-feedback-fields textarea:focus { outline: none; border-color: var(--bocp-red); box-shadow: 0 0 0 3px var(--focus-ring); }
.kb-feedback-btn {
	background: var(--bocp-red);
	color: #fff;
	border: none;
	padding: 10px 22px;
	border-radius: var(--radius-md);
	cursor: pointer;
	font-size: 15px;
	font-weight: 600;
	margin-right: 10px;
}
.kb-feedback-btn:hover { background: var(--bocp-red-hover); }
.kb-feedback-skip {
	background: none;
	color: var(--text-muted);
	border: none;
	cursor: pointer;
	font-size: 14px;
	padding: 10px 0;
	text-decoration: underline;
}
.kb-feedback-skip:hover { color: var(--text-strong); }
.kb-feedback-thanks {
	color: var(--success);
	font-size: 16px;
	font-weight: 600;
	padding: 8px 0;
}

.site-footer {
	flex-shrink: 0;
	background: var(--gray-900);
	color: #d1d5db;
	font-size: 15px;
	margin-top: 24px;
}
.footer-inner {
	max-width: var(--page-max);
	margin: 0 auto;
	padding: 32px 16px 16px;
	display: grid;
	grid-template-columns: 1fr;
	gap: 24px;
}
.footer-title { color: #fff; font-weight: 700; margin: 0 0 8px; }
.footer-text { margin: 0; color: #d1d5db; max-width: 40ch; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin: 0 0 6px; }
.footer-links a { color: #f3f4f6; text-decoration: none; }
.footer-links a:hover { color: #fff; text-decoration: underline; }
.footer-copy {
	max-width: var(--page-max);
	margin: 0 auto;
	padding: 14px 16px 24px;
	border-top: 1px solid var(--gray-800);
	font-size: 13px;
	color: #9ca3af;
}

.content > .kb-breadcrumb,
.content > .kb-related { max-width: var(--measure); }
.kb-breadcrumb { font-size: 14px; color: var(--text-muted); margin: 0 0 12px; }
.kb-breadcrumb a { color: var(--text-muted); text-decoration: none; }
.kb-breadcrumb a:hover { color: var(--bocp-red-hover); text-decoration: underline; }
.kb-meta-line { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin: -4px 0 20px; font-size: 14px; color: var(--text-muted); }
.kb-tag { display: inline-block; padding: 2px 10px; border-radius: var(--radius-pill); background: var(--bocp-red-soft); color: var(--bocp-red-hover); font-weight: 600; font-size: 13px; }
.kb-meta { display: block; margin-top: 2px; font-size: 13px; font-weight: 400; color: var(--text-muted); }
.kb-related { margin: 32px 0 0; padding: 20px; border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); background: var(--gray-50); }
.kb-related h2 { margin-top: 0; font-size: 20px; }
.kb-related .kb-art-list { background: #fff; }
.kb-bocpro { margin: 12px 0 0; font-size: 15px; color: var(--text-muted); }
.kb-bocpro a { font-weight: 600; }

.kb-hero { padding: 8px 0 24px; border-bottom: 1px solid var(--border-subtle); margin-bottom: 8px; }
.kb-hero h1 { margin-top: 0; }
.kb-hero .kb-lead { max-width: 70ch; }
.kb-hero-search { display: flex; gap: 8px; max-width: 680px; margin-top: 16px; }
.kb-hero-search input {
	flex: 1;
	min-width: 0;
	height: 52px;
	padding: 0 18px;
	font: inherit;
	font-size: 17px;
	border: 1px solid var(--border-default);
	border-radius: var(--radius-pill);
	background: #fff;
	box-shadow: var(--shadow-xs);
}
.kb-hero-search input:focus { outline: none; border-color: var(--bocp-red); box-shadow: 0 0 0 3px var(--focus-ring); }
.kb-hero-search button {
	height: 52px;
	padding: 0 24px;
	font: inherit;
	font-weight: 600;
	color: #fff;
	background: var(--bocp-red);
	border: 0;
	border-radius: var(--radius-pill);
	cursor: pointer;
}
.kb-hero-search button:hover { background: var(--bocp-red-hover); }
.kb-home-section { margin: 32px 0 0; }
.kb-home-section > h2 { margin-top: 0; }
.kb-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin-top: 12px; }
.kb-card {
	display: flex;
	flex-direction: column;
	gap: 4px;
	padding: 16px;
	border: 1px solid var(--border-subtle);
	border-radius: var(--radius-lg);
	background: #fff;
	box-shadow: var(--shadow-xs);
	text-decoration: none;
	transition: box-shadow 0.15s, border-color 0.15s;
}
.kb-card:hover { box-shadow: var(--shadow-md); border-color: var(--bocp-red-border); }
.kb-card-kicker { font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--bocp-red-hover); }
.kb-card .kb-card-title { font-size: 1.1em; font-weight: 600; color: var(--text-strong); line-height: 1.35; }
.kb-card .kb-card-text { font-size: 13px; color: #555; line-height: 1.45; }
.kb-card:hover .kb-card-title { color: var(--bocp-red-hover); }
.kb-role-group { margin: 24px 0 0; font-size: 16px; font-weight: 700; color: var(--text-strong); }
.kb-role-group + .kb-card-grid { margin-top: 10px; }
.kb-home-cols { display: grid; grid-template-columns: 1fr; gap: 0 32px; }
.kb-group-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin-top: 12px; }
.kb-group-card { padding: 16px 18px; border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); background: #fff; }
.kb-group-card h3 { margin: 0 0 8px; font-size: 17px; }
.kb-group-card ul { list-style: none; margin: 0; padding: 0; }
.kb-group-card li { display: flex; align-items: center; gap: 8px; padding: 4px 0; }
.kb-group-card li a { text-decoration: none; }
.kb-group-card li a:hover { text-decoration: underline; }

@media (min-width: 720px) {
	.kb-home-cols { grid-template-columns: 1fr 1fr; }
	.header-inner { flex-wrap: nowrap; padding: 12px 24px; gap: 20px; }
	.logo { height: 40px; }
	.site-title { font-size: 20px; }
	.head-search-div { order: 0; flex: 1 1 auto; max-width: 520px; margin-left: auto; }
	.head-link { order: 1; margin-left: 0; }
	.main-wrapper { padding: 32px 24px 64px; }
	.footer-inner { grid-template-columns: 2fr 1fr; padding: 40px 24px 20px; }
	.footer-copy { padding: 14px 24px 28px; }
}

@media (min-width: 960px) {
	.main-wrapper { flex-direction: row; align-items: flex-start; gap: 40px; }
	.sidebar {
		width: 280px;
		flex-shrink: 0;
		position: sticky;
		top: 16px;
		max-height: calc(100vh - 32px);
		overflow-y: auto;
	}
}

@media (prefers-reduced-motion: reduce) {
	* { transition: none !important; }
}

@media print {
	.header-band, .site-footer, .sidebar, .kb-feedback, .skip-link, .kb-related, .kb-breadcrumb { display: none; }
	.main-wrapper { padding: 0; }
	a { color: inherit; }
}