/**
 * Variant CSS: nav--transparent-pill-floating
 * Layer 2 — transparent overlay header rendered as a FLOATING dark-glass capsule:
 * the bar itself is fully transparent; the inner row is a blurred translucent pill
 * detached from the top edge, with a hairline border and a filled CTA. Light on-dark
 * text. Two modes: isolated (dark pill reads on any preview bg) and overlay
 * (.aibt-header-overlay → the pill floats on the hero photo).
 * Scope: every selector starts with body.aibt-universal .universal-nav--transparent-pill-floating
 */

body.aibt-universal .universal-nav--transparent-pill-floating {
	position: relative;
	z-index: 100;
	background: transparent;
	padding-block: 0 !important;
	margin-block: 0 !important;
}

/* The pill — a dark-glass capsule floating below the top edge, centred + capped */
body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-md);
	max-width: var(--max-wide);
	margin: var(--space-md) auto 0;
	padding: 0.55rem 0.6rem 0.55rem 1.6rem;
	/* Dark frosted glass — white text stays legible over ANY photo. No blur token
	   exists in the premium system, so the blur radius is a justified literal. */
	background: rgba(12, 14, 18, 0.34);
	-webkit-backdrop-filter: blur(16px) saturate(1.2);
	backdrop-filter: blur(16px) saturate(1.2);
	/* Brighter hairline so the capsule edge reads over ANY photo — over a dark hero
	   the dark fill blends in and the border alone defines the floating-pill shape. */
	border: 1px solid rgba(255, 255, 255, 0.32);
	border-radius: var(--radius-pill, 999px);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__brand {
	font-family: var(--font-display) !important;
	font-weight: 500 !important;
	font-size: 1.3rem !important;
	letter-spacing: -0.01em !important;
	color: var(--text-on-dark, #ffffff) !important;
	margin: 0 !important;
	line-height: 1 !important;
	white-space: nowrap;
}

body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__menu-wrap {
	display: flex;
	align-items: center;
	gap: var(--space-lg);
	flex: 1;
	justify-content: flex-end;
}

body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__menu {
	font-family: var(--font-body) !important;
	font-size: var(--text-sm) !important;
	color: var(--text-on-dark, #ffffff) !important;
	opacity: 0.88;
	margin: 0 !important;
	letter-spacing: 0.02em !important;
	white-space: nowrap;
}

body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__menu a {
	color: inherit;
	text-decoration: none;
	transition: color var(--duration-fast) var(--ease-default);
}

body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__menu a:hover {
	color: var(--accent);
}

/* Filled pill-in-pill CTA — a solid accent capsule echoing the outer pill shape */
body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__cta {
	font-family: var(--font-body);
	font-size: 0.86rem;
	font-weight: 600;
	letter-spacing: var(--tracking-wide);
	padding: 0.6rem 1.45rem;
	color: var(--cta-text-primary, #ffffff);
	background: var(--accent);
	border: 1px solid transparent;
	text-decoration: none;
	transition: transform var(--duration-fast) var(--ease-default),
		filter var(--duration-fast) var(--ease-default);
	min-height: 40px;
	display: inline-flex;
	align-items: center;
	white-space: nowrap;
	border-radius: var(--radius-pill, 999px);
}

body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__cta:hover {
	transform: translateY(-1px);
	filter: brightness(1.07);
}

/* Hamburger toggle (hidden on desktop) — light bars */
body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__toggle {
	display: none;
	background: transparent;
	border: 1px solid rgba(255, 255, 255, 0.4);
	cursor: pointer;
	width: 42px;
	height: 42px;
	border-radius: var(--radius-pill, 999px);
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 0;
	transition: border-color var(--duration-fast) var(--ease-default);
}

body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__toggle:hover {
	border-color: var(--text-on-dark, #ffffff);
}

body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__toggle-bar {
	display: block;
	width: 18px;
	height: 1.5px;
	background: var(--text-on-dark, #ffffff);
	transition: transform 280ms var(--ease-default);
}

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

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

/* Keyboard focus rings (a11y) */
body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__menu a:focus-visible,
body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__cta:focus-visible,
body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__toggle:focus-visible {
	outline: 2px solid var(--text-on-dark, #ffffff);
	outline-offset: 3px;
	border-radius: var(--radius-pill, 999px);
}

/* ── Mobile: brand + toggle stay in the pill; menu drops to a solid dark panel ── */
@media (max-width: 781px) {
	body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__inner {
		padding: 0.5rem 0.6rem 0.5rem 1.3rem;
	}

	body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__toggle {
		display: flex;
	}

	body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__menu-wrap {
		position: fixed;
		top: calc(var(--space-md) + 66px);
		left: var(--space-sm);
		right: var(--space-sm);
		background: var(--background-dark);
		flex-direction: column;
		gap: 2rem;
		justify-content: flex-start;
		align-items: center;
		padding: 2.25rem 1.5rem;
		border-radius: var(--radius-lg, 16px);
		transform: translateY(-130%);
		transition: transform 320ms var(--ease-default);
		z-index: 99;
		box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
	}

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

	body.aibt-universal .universal-nav--transparent-pill-floating .universal-nav__menu {
		font-size: 1.3rem !important;
		text-align: center;
		white-space: normal;
		opacity: 1;
		line-height: 2;
	}
}

/* ── Overlay mode (transparent-header architecture) ───────────────────────────
   The bar floats absolute on the hero; the pill itself already carries its dark
   frosted fill + blur, so no extra bar scrim is needed — only a soft text-shadow
   for the brand which sits outside any fill on bright photos. */
body.aibt-universal .aibt-header-overlay {
	position: relative;
}

body.aibt-universal .aibt-header-overlay .universal-nav--transparent-pill-floating {
	position: absolute;
	inset: 0 0 auto 0;
	z-index: 50;
	background: transparent;
}

body.aibt-universal .aibt-header-overlay .universal-nav--transparent-pill-floating .universal-nav__brand {
	text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* The hero reserves room for the floating pill (its own margin-top adds the float).
   Self-contained so the variant works under conditional CSS loading. */
body.aibt-universal .aibt-header-overlay .universal-hero {
	padding-top: var(--header-h, 4.75rem);
}

body.aibt-universal .aibt-header-overlay .universal-hero[class*="universal-hero--cover-"] {
	padding-top: 0;
}