:root {
	--bkv40-navy: #08182f;
	--bkv40-blue: #2563eb;
	--bkv40-sky: #0ea5e9;
	--bkv40-teal: #14b8a6;
	--bkv40-ink: #172033;
	--bkv40-muted: #526078;
	--bkv40-border: #dce4ef;
	--bkv40-soft: #f4f8fc;
	--bkv40-white: #ffffff;
	--bkv40-gold: #f59e0b;
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body.bknown-v40-page {
	background: var(--bkv40-white);
	color: var(--bkv40-ink);
	font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	line-height: 1.7;
	margin: 0;
}

.bkv40-nav {
	align-items: center;
	background: rgba(8, 24, 47, 0.98);
	display: flex;
	justify-content: space-between;
	min-height: 74px;
	padding: 0 32px;
	position: sticky;
	top: 0;
	z-index: 1000;
}

.bkv40-brand,
.bkv40-brand:hover {
	align-items: center;
	color: #fff;
	display: inline-flex;
	font-family: "Plus Jakarta Sans", Inter, sans-serif;
	font-size: 21px;
	font-weight: 800;
	gap: 11px;
	text-decoration: none;
}

.bkv40-mark {
	align-items: center;
	background: linear-gradient(135deg, var(--bkv40-blue), var(--bkv40-sky));
	border-radius: 10px;
	display: inline-flex;
	font-size: 13px;
	height: 38px;
	justify-content: center;
	letter-spacing: -0.03em;
	width: 38px;
}

.bkv40-nav-links {
	align-items: center;
	display: flex;
	gap: 24px;
	list-style: none;
	margin: 0;
	padding: 0;
}

.bkv40-nav-links a {
	color: rgba(255, 255, 255, 0.8);
	font-size: 14px;
	font-weight: 650;
	text-decoration: none;
}

.bkv40-nav-links a:hover {
	color: #fff;
}

.bkv40-nav-links .bkv40-nav-cta {
	background: var(--bkv40-blue);
	border-radius: 999px;
	color: #fff;
	padding: 10px 17px;
}

.bkv40-hero {
	background:
		radial-gradient(circle at 82% 18%, rgba(14, 165, 233, 0.18), transparent 35%),
		linear-gradient(145deg, #07152a, #0c2447);
	color: #fff;
	padding: 92px 24px 78px;
}

.bkv40-container {
	margin: 0 auto;
	max-width: 1160px;
}

.bkv40-hero-inner {
	max-width: 900px;
}

.bkv40-eyebrow {
	color: #7dd3fc;
	font-size: 12px;
	font-weight: 800;
	letter-spacing: 0.14em;
	text-transform: uppercase;
}

.bkv40-hero h1 {
	color: #fff;
	font-family: "Plus Jakarta Sans", Inter, sans-serif;
	font-size: clamp(2.35rem, 5.2vw, 4.7rem);
	letter-spacing: -0.045em;
	line-height: 1.05;
	margin: 16px 0 24px;
}

.bkv40-hero-summary {
	color: rgba(255, 255, 255, 0.78);
	font-size: clamp(1.05rem, 2vw, 1.28rem);
	line-height: 1.75;
	margin: 0;
	max-width: 820px;
}

.bkv40-reviewed {
	color: rgba(255, 255, 255, 0.62);
	font-size: 13px;
	margin-top: 26px;
}

.bkv40-hero-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 30px;
}

.bkv40-button {
	border-radius: 999px;
	display: inline-flex;
	font-weight: 750;
	justify-content: center;
	padding: 12px 20px;
	text-decoration: none;
}

.bkv40-button--primary {
	background: var(--bkv40-blue);
	color: #fff;
}

.bkv40-button--ghost {
	border: 1px solid rgba(255, 255, 255, 0.34);
	color: #fff;
}

.bkv40-snapshot {
	background: var(--bkv40-soft);
	border-bottom: 1px solid var(--bkv40-border);
	padding: 30px 24px;
}

.bkv40-snapshot-grid {
	display: grid;
	gap: 14px;
	grid-template-columns: repeat(4, minmax(0, 1fr));
}

.bkv40-snapshot-item {
	background: #fff;
	border: 1px solid var(--bkv40-border);
	border-radius: 14px;
	font-size: 14px;
	font-weight: 700;
	line-height: 1.45;
	padding: 18px;
}

.bkv40-snapshot-item::before {
	color: var(--bkv40-teal);
	content: "✓";
	font-weight: 900;
	margin-right: 8px;
}

.bkv40-main {
	padding: 64px 24px 82px;
}

.bkv40-layout {
	display: grid;
	gap: 50px;
	grid-template-columns: minmax(0, 1fr) 280px;
}

.bkv40-content {
	min-width: 0;
}

.bkv40-intro {
	border-left: 5px solid var(--bkv40-sky);
	font-size: 1.08rem;
	margin-bottom: 46px;
	padding: 5px 0 5px 22px;
}

.bkv40-section {
	border-bottom: 1px solid var(--bkv40-border);
	padding: 0 0 42px;
	margin: 0 0 42px;
}

.bkv40-section:last-child {
	border-bottom: 0;
}

.bkv40-section h2,
.bkv40-sources h2,
.bkv40-related h2 {
	color: var(--bkv40-navy);
	font-family: "Plus Jakarta Sans", Inter, sans-serif;
	font-size: clamp(1.65rem, 3vw, 2.25rem);
	letter-spacing: -0.025em;
	line-height: 1.2;
	margin: 0 0 20px;
}

.bkv40-section h3 {
	color: var(--bkv40-navy);
	font-size: 1.12rem;
	margin: 26px 0 8px;
}

.bkv40-section p {
	color: #334158;
	margin: 0 0 17px;
}

.bkv40-section ul,
.bkv40-section ol {
	margin: 18px 0;
	padding-left: 22px;
}

.bkv40-section li {
	margin-bottom: 11px;
}

.bkv40-steps {
	counter-reset: bkv40-step;
	display: grid;
	gap: 14px;
	list-style: none;
	margin: 24px 0;
	padding: 0;
}

.bkv40-step {
	background: var(--bkv40-soft);
	border: 1px solid var(--bkv40-border);
	border-radius: 14px;
	padding: 20px 20px 20px 64px;
	position: relative;
}

.bkv40-step::before {
	align-items: center;
	background: var(--bkv40-blue);
	border-radius: 50%;
	color: #fff;
	content: counter(bkv40-step);
	counter-increment: bkv40-step;
	display: flex;
	font-weight: 800;
	height: 32px;
	justify-content: center;
	left: 18px;
	position: absolute;
	top: 19px;
	width: 32px;
}

.bkv40-step strong {
	color: var(--bkv40-navy);
	display: block;
	margin-bottom: 4px;
}

.bkv40-callout {
	background: #ecfeff;
	border: 1px solid #a5f3fc;
	border-radius: 14px;
	color: #164e63;
	margin: 24px 0;
	padding: 20px;
}

.bkv40-table-wrap {
	overflow-x: auto;
}

.bkv40-table {
	border-collapse: collapse;
	font-size: 14px;
	margin: 24px 0;
	min-width: 640px;
	width: 100%;
}

.bkv40-table th,
.bkv40-table td {
	border: 1px solid var(--bkv40-border);
	padding: 13px 14px;
	text-align: left;
	vertical-align: top;
}

.bkv40-table th {
	background: var(--bkv40-navy);
	color: #fff;
}

.bkv40-toc {
	background: #fff;
	border: 1px solid var(--bkv40-border);
	border-radius: 16px;
	padding: 20px;
	position: sticky;
	top: 96px;
}

.bkv40-toc strong {
	color: var(--bkv40-navy);
	display: block;
	font-size: 13px;
	letter-spacing: 0.08em;
	margin-bottom: 12px;
	text-transform: uppercase;
}

.bkv40-toc ul {
	list-style: none;
	margin: 0;
	padding: 0;
}

.bkv40-toc li + li {
	border-top: 1px solid var(--bkv40-border);
}

.bkv40-toc a {
	color: var(--bkv40-muted);
	display: block;
	font-size: 13px;
	line-height: 1.45;
	padding: 10px 0;
	text-decoration: none;
}

.bkv40-toc a:hover {
	color: var(--bkv40-blue);
}

.bkv40-sources,
.bkv40-related {
	background: var(--bkv40-soft);
	padding: 64px 24px;
}

.bkv40-sources {
	background: #fff;
}

.bkv40-source-list {
	display: grid;
	gap: 12px;
	list-style: none;
	margin: 0;
	padding: 0;
}

.bkv40-source-list a {
	color: var(--bkv40-blue);
	font-weight: 700;
	text-decoration: none;
}

.bkv40-source-list a:hover {
	text-decoration: underline;
}

.bkv40-disclaimer {
	background: #fffbeb;
	border: 1px solid #fde68a;
	border-radius: 14px;
	color: #78350f;
	font-size: 13px;
	margin-top: 26px;
	padding: 18px;
}

.bkv40-related-grid {
	display: grid;
	gap: 16px;
	grid-template-columns: repeat(3, minmax(0, 1fr));
}

.bkv40-related-card {
	background: #fff;
	border: 1px solid var(--bkv40-border);
	border-radius: 14px;
	color: var(--bkv40-navy);
	display: block;
	font-weight: 800;
	min-height: 130px;
	padding: 20px;
	text-decoration: none;
}

.bkv40-related-card span {
	color: var(--bkv40-blue);
	display: block;
	font-size: 13px;
	margin-top: 18px;
}

.bkv40-cta {
	background: linear-gradient(135deg, var(--bkv40-blue), #1646bb);
	color: #fff;
	padding: 66px 24px;
	text-align: center;
}

.bkv40-cta h2 {
	color: #fff;
	font-family: "Plus Jakarta Sans", Inter, sans-serif;
	font-size: clamp(1.9rem, 4vw, 3rem);
	margin: 0 0 12px;
}

.bkv40-cta p {
	color: rgba(255, 255, 255, 0.82);
	margin: 0 auto 24px;
	max-width: 720px;
}

.bkv40-cta .bkv40-button {
	background: #fff;
	color: var(--bkv40-blue);
}

.bkv40-footer {
	background: var(--bkv40-navy);
	color: rgba(255, 255, 255, 0.68);
	font-size: 13px;
	padding: 36px 24px;
}

.bkv40-footer-inner {
	align-items: center;
	display: flex;
	gap: 18px;
	justify-content: space-between;
	margin: 0 auto;
	max-width: 1160px;
}

.bkv40-footer a {
	color: #fff;
	text-decoration: none;
}

/* Homepage cluster inserted into the V36 landing page. */
.bknown-v40-home-hub {
	background: #f4f8fc;
	padding: 80px 24px;
}

.bknown-v40-home-hub-inner {
	margin: 0 auto;
	max-width: 1180px;
}

.bknown-v40-home-hub-grid {
	display: grid;
	gap: 18px;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	margin-top: 28px;
}

.bknown-v40-home-hub-card {
	background: #fff;
	border: 1px solid #dce4ef;
	border-radius: 18px;
	color: #08182f;
	display: block;
	padding: 26px;
	text-decoration: none;
}

.bknown-v40-home-hub-card strong {
	display: block;
	font-size: 1.1rem;
	margin-bottom: 8px;
}

.bknown-v40-home-hub-card p {
	color: #526078;
	font-size: 14px;
	line-height: 1.65;
}

.bknown-v40-home-hub-card span {
	color: #2563eb;
	font-size: 13px;
	font-weight: 800;
}

@media (max-width: 900px) {
	.bkv40-nav-links li:not(:last-child) {
		display: none;
	}

	.bkv40-layout {
		grid-template-columns: 1fr;
	}

	.bkv40-toc {
		position: static;
	}

	.bkv40-snapshot-grid,
	.bkv40-related-grid,
	.bknown-v40-home-hub-grid {
		grid-template-columns: 1fr 1fr;
	}
}

@media (max-width: 620px) {
	.bkv40-nav {
		padding: 0 18px;
	}

	.bkv40-nav-links {
		gap: 10px;
	}

	.bkv40-nav-links .bkv40-nav-cta {
		padding: 9px 13px;
	}

	.bkv40-hero {
		padding: 70px 20px 58px;
	}

	.bkv40-main {
		padding: 48px 20px 64px;
	}

	.bkv40-snapshot-grid,
	.bkv40-related-grid,
	.bknown-v40-home-hub-grid {
		grid-template-columns: 1fr;
	}

	.bkv40-footer-inner {
		align-items: flex-start;
		flex-direction: column;
	}
}