/**
 * Variant CSS: nav--sticky-with-cta
 * Layer 2: shared piwnica/kod nav extraction.
 */

body.aibt-universal .universal-nav--sticky-with-cta {
	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. __inner handles the 1.25rem vertical rhythm. */
	padding-block: 0 !important;
	margin-block: 0 !important;
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 2rem;
	padding: 1.25rem clamp(var(--space-md), 4vw, var(--space-xl));
	max-width: var(--max-ultra);
	margin: 0 auto;
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__brand {
	font-family: var(--font-display) !important;
	font-weight: 500 !important;
	font-size: 1.35rem !important;
	letter-spacing: -0.01em !important;
	color: var(--text-primary) !important;
	margin: 0 !important;
	line-height: 1 !important;
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__menu-wrap {
	display: flex;
	align-items: center;
	gap: 2rem;
	flex: 1;
	justify-content: flex-end;
}

body.aibt-universal .universal-nav--sticky-with-cta .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;
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__menu-text a {
	color: inherit;
	text-decoration: none;
	transition: color var(--duration-fast) ease;
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__menu-text a:hover {
	color: var(--accent);
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__cta-link {
	font-family: var(--font-body);
	font-size: 0.88rem;
	font-weight: 500;
	letter-spacing: var(--tracking-wide);
	padding: 0.7rem 1.4rem;
	color: var(--cta-text-primary);
	background: var(--cta-bg-primary);
	text-decoration: none;
	transition: background var(--duration-fast) var(--ease-default),
		color 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--sticky-with-cta .universal-nav__cta-link:hover {
	background: var(--accent-hover);
}

/* Hamburger toggle */
body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__toggle {
	display: none;
	background: transparent;
	border: 1px solid var(--divider-primary);
	cursor: pointer;
	width: 44px;
	height: 44px;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 0;
	transition: border-color var(--duration-fast) ease;
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__toggle:hover {
	border-color: var(--text-primary);
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__toggle-bar {
	display: block;
	width: 18px;
	height: 1.5px;
	background: var(--text-primary);
	transition: transform var(--duration-base, 280ms) var(--ease-default);
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__toggle[aria-expanded="true"] .universal-nav__toggle-bar:nth-child(1) {
	transform: translateY(4px) rotate(45deg);
}

body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__toggle[aria-expanded="true"] .universal-nav__toggle-bar:nth-child(2) {
	transform: translateY(-3px) rotate(-45deg);
}

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

@media (max-width: 781px) {
	/* The nav's backdrop-filter establishes a containing block, which would trap
	   the position:fixed drop panel inside the ~73px bar (panel never escapes to
	   the viewport, so the menu floats mid-page and the hamburger clips). Drop the
	   filter on mobile + use a solid bar so the fixed panel is viewport-relative. */
	body.aibt-universal .universal-nav--sticky-with-cta {
		backdrop-filter: none;
		-webkit-backdrop-filter: none;
		background: var(--background);
	}

	body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__toggle {
		display: flex;
	}

	body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__menu-wrap {
		position: fixed;
		top: 73px;
		left: 0;
		right: 0;
		bottom: 0;
		background: var(--background);
		flex-direction: column;
		gap: 2.5rem;
		justify-content: flex-start;
		padding: 3rem 1.5rem 2rem;
		transform: translateY(-110%);
		transition: transform var(--duration-medium, 320ms) var(--ease-emphasized);
		z-index: 99;
		box-shadow: var(--decor-shadow-elevated);
	}

	body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__menu-wrap[data-open="true"] {
		transform: translateY(0);
	}

	body.aibt-universal .universal-nav--sticky-with-cta .universal-nav__menu-text {
		font-size: 1.4rem !important;
		text-align: center;
	}
}