/**
 * Variant CSS: nav--centered-logo-split
 * Layer 2: symmetrical header, split menu (left | brand | right).
 * Scope: every selector starts with body.aibt-universal .universal-nav--centered-logo-split
 */

body.aibt-universal .universal-nav--centered-logo-split {
	position: sticky;
	top: 0;
	z-index: 100;
	background: color-mix(in oklab, var(--background) 92%, transparent);
	backdrop-filter: blur(14px);
	-webkit-backdrop-filter: blur(14px);
	border-bottom: 1px solid var(--divider-primary);
	/* Nav must be compact: kill inherited section/global block padding + margin. */
	padding-block: 0 !important;
	margin-block: 0 !important;
}

body.aibt-universal .universal-nav--centered-logo-split .universal-nav__inner {
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	gap: clamp(var(--space-md), 3vw, var(--space-xl));
	padding: 1.15rem clamp(var(--space-md), 4vw, var(--space-xl));
	max-width: var(--max-ultra);
	margin-inline: auto;
}

/* Centred brand mark */
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__brand {
	font-family: var(--font-display) !important;
	font-weight: 500 !important;
	font-size: 1.4rem !important;
	letter-spacing: -0.01em !important;
	color: var(--text-primary) !important;
	margin: 0 !important;
	line-height: 1 !important;
	text-align: center;
	white-space: nowrap;
}

/* Menu groups: left aligned left, right aligned right */
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu {
	display: flex;
	align-items: center;
	gap: var(--space-md);
	margin: 0;
}

body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu--left {
	justify-content: flex-start;
}

body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu--right {
	justify-content: flex-end;
}

body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu,
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu-text {
	font-family: var(--font-body) !important;
	font-size: var(--text-sm) !important;
	color: var(--text-secondary) !important;
	margin: 0 !important;
	letter-spacing: 0.02em !important;
}

/* Menu-link reset: must NOT catch the CTA <a>, which lives inside
   .universal-nav__menu--right. Without :not(), `.universal-nav__menu a`
   (spec 0,1,1) overrode `.universal-nav__cta` (0,1,0), so the CTA inherited
   --text-secondary on the accent fill (~1.7:1, fails AA in every theme). */
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu a:not(.universal-nav__cta),
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu-text a:not(.universal-nav__cta) {
	color: inherit;
	text-decoration: none;
	transition: color var(--duration-fast) var(--ease-default);
}

body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu a:not(.universal-nav__cta):hover,
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu-text a:not(.universal-nav__cta):hover {
	color: var(--accent);
}

/* Right CTA */
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__cta {
	font-family: var(--font-body);
	font-size: 0.86rem;
	font-weight: 500;
	letter-spacing: var(--tracking-wide);
	padding: 0.65rem 1.3rem;
	color: var(--cta-text-primary);
	background: var(--cta-bg-primary);
	border: var(--decor-border-width, 1px) solid var(--cta-border-primary);
	text-decoration: none;
	transition: background var(--duration-fast) var(--ease-default);
	min-height: 40px;
	display: inline-flex;
	align-items: center;
	white-space: nowrap;
	border-radius: var(--decor-radius);
}

body.aibt-universal .universal-nav--centered-logo-split .universal-nav__cta:hover {
	background: var(--accent-hover);
}

/* Keyboard focus rings — accent outline on the chrome surface (a11y). */
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu a:focus-visible,
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu-text a:focus-visible,
body.aibt-universal .universal-nav--centered-logo-split .universal-nav__cta:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
	border-radius: var(--decor-radius);
}

/* Mobile: collapse 3-col grid to centred brand over a single menu row */
@media (max-width: 781px) {
	body.aibt-universal .universal-nav--centered-logo-split .universal-nav__inner {
		grid-template-columns: 1fr;
		justify-items: center;
		gap: var(--space-sm);
		padding-block: 1rem;
	}

	body.aibt-universal .universal-nav--centered-logo-split .universal-nav__brand {
		order: -1;
	}

	body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu {
		flex-wrap: wrap;
		justify-content: center;
		gap: var(--space-sm);
	}

	body.aibt-universal .universal-nav--centered-logo-split .universal-nav__menu--right {
		flex-direction: column;
	}
}