/* ==========================================================================
   Header — Premium Corporate Navigation
   ========================================================================== */

/* --------------------------------------------------------------------------
   Fixed Header Shell
   -------------------------------------------------------------------------- */

.benxi-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 1000;
	background: transparent;
	transition:
		background 0.5s var(--benxi-ease),
		box-shadow 0.5s var(--benxi-ease),
		backdrop-filter 0.5s var(--benxi-ease),
		-webkit-backdrop-filter 0.5s var(--benxi-ease),
		border-color 0.5s var(--benxi-ease);
}

.benxi-header--scrolled {
	background: linear-gradient(
		180deg,
		rgba(255, 255, 255, 0.58) 0%,
		rgba(255, 255, 255, 0.38) 100%
	);
	backdrop-filter: blur(var(--benxi-glass-blur)) saturate(160%);
	-webkit-backdrop-filter: blur(var(--benxi-glass-blur)) saturate(160%);
	border-bottom: 1px solid var(--benxi-glass-border);
	box-shadow: var(--benxi-glass-shadow);
}

.benxi-header--scrolled .benxi-header__main {
	position: relative;
}

.benxi-header--scrolled .benxi-header__main::before {
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, transparent 100%);
	pointer-events: none;
}

/* --------------------------------------------------------------------------
   Top Information Bar
   -------------------------------------------------------------------------- */

.benxi-top-bar {
	height: var(--benxi-topbar-height);
	background: var(--benxi-dark);
	display: flex;
	align-items: center;
	transition: height var(--benxi-transition), opacity var(--benxi-transition);
}

.benxi-header--scrolled .benxi-top-bar {
	height: 0;
	opacity: 0;
	overflow: hidden;
}

.benxi-top-bar__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 100%;
}

.benxi-top-bar__location,
.benxi-top-bar__contacts {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-size: 0.75rem;
	font-weight: 500;
	letter-spacing: 0.02em;
	color: rgba(255, 255, 255, 0.8);
}

.benxi-top-bar__contacts {
	gap: 0;
}

.benxi-top-bar__link {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	color: rgba(255, 255, 255, 0.8);
	transition: color 0.25s var(--benxi-ease);
}

.benxi-top-bar__link:hover,
.benxi-top-bar__link:focus-visible {
	color: var(--benxi-white);
}

.benxi-top-bar__icon {
	display: inline-flex;
	align-items: center;
	flex-shrink: 0;
	opacity: 0.7;
}

.benxi-top-bar__separator {
	width: 1px;
	height: 14px;
	background: rgba(255, 255, 255, 0.2);
	margin-inline: 1rem;
}

/* --------------------------------------------------------------------------
   Main Navigation Bar
   -------------------------------------------------------------------------- */

.benxi-header__main {
	height: var(--benxi-header-height);
	display: flex;
	align-items: center;
	transition: height var(--benxi-transition);
}

.benxi-header--scrolled .benxi-header__main {
	height: var(--benxi-header-height-scrolled);
}

.benxi-header__inner {
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	gap: 2rem;
	width: 100%;
}

/* --------------------------------------------------------------------------
   Logo
   -------------------------------------------------------------------------- */

.benxi-header__logo {
	justify-self: start;
}

.benxi-logo {
	display: inline-flex;
	align-items: center;
	line-height: 0;
}

.benxi-logo__image {
	height: var(--benxi-logo-height);
	width: auto;
	max-width: 220px;
	object-fit: contain;
	transition:
		height var(--benxi-transition),
		transform var(--benxi-transition),
		filter var(--benxi-transition);
}

.benxi-header--scrolled .benxi-logo__image {
	height: var(--benxi-logo-height-scrolled);
	filter: none;
}

/* Bright logo on transparent header */
.benxi-header:not(.benxi-header--scrolled) .benxi-logo__image {
	filter: brightness(0) invert(1);
}

/* --------------------------------------------------------------------------
   Desktop Navigation
   -------------------------------------------------------------------------- */

.benxi-header__nav {
	justify-self: center;
}

.benxi-nav__list {
	display: flex;
	align-items: center;
	gap: 0.25rem;
}

.benxi-nav__list .menu-item {
	position: relative;
}

.benxi-nav__link {
	display: inline-block;
	padding: 0.5rem 1rem;
	font-size: 0.9rem;
	font-weight: 500;
	letter-spacing: 0.01em;
	color: rgba(255, 255, 255, 0.92);
	transition:
		color 0.35s var(--benxi-ease),
		transform 0.35s var(--benxi-ease-out);
	position: relative;
}

.benxi-header--scrolled .benxi-nav__link {
	color: rgba(17, 17, 17, 0.85);
}

.benxi-nav__link::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 50%;
	width: 0;
	height: 2px;
	background: linear-gradient(90deg, var(--benxi-blue), var(--benxi-green));
	border-radius: 2px;
	transform: translateX(-50%);
	transition: width 0.35s var(--benxi-ease-out);
}

.benxi-nav__link:hover,
.benxi-nav__link:focus-visible {
	color: var(--benxi-white);
	transform: translateY(-2px);
}

.benxi-header--scrolled .benxi-nav__link:hover,
.benxi-header--scrolled .benxi-nav__link:focus-visible {
	color: var(--benxi-blue);
}

.benxi-nav__link:hover::after,
.benxi-nav__link:focus-visible::after,
.benxi-nav__link--active::after,
.current-menu-item .benxi-nav__link::after {
	width: calc(100% - 1.5rem);
}

.benxi-nav__link--active,
.current-menu-item .benxi-nav__link {
	color: var(--benxi-white);
	font-weight: 600;
}

.benxi-header--scrolled .benxi-nav__link--active,
.benxi-header--scrolled .current-menu-item .benxi-nav__link {
	color: var(--benxi-blue);
}

/* --------------------------------------------------------------------------
   Header Actions (Quote Button + Hamburger)
   -------------------------------------------------------------------------- */

.benxi-header__actions {
	justify-self: end;
	display: flex;
	align-items: center;
	gap: 1rem;
}

/* Quote Button */
.benxi-btn--quote {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.75rem 1.75rem;
	font-size: 0.875rem;
	font-weight: 600;
	letter-spacing: 0.02em;
	color: var(--benxi-white);
	background: var(--benxi-blue);
	border-radius: 100px;
	box-shadow: var(--benxi-shadow-btn);
	transition:
		background 0.4s var(--benxi-ease),
		box-shadow 0.4s var(--benxi-ease),
		transform 0.35s var(--benxi-ease-out);
	white-space: nowrap;
	position: relative;
	overflow: hidden;
}

.benxi-btn--quote::before {
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(135deg, var(--benxi-blue) 0%, var(--benxi-green) 100%);
	opacity: 0;
	transition: opacity 0.4s var(--benxi-ease);
	border-radius: inherit;
}

.benxi-btn--quote:hover::before,
.benxi-btn--quote:focus-visible::before {
	opacity: 1;
}

.benxi-btn--quote:hover,
.benxi-btn--quote:focus-visible {
	transform: translateY(-2px);
	box-shadow: var(--benxi-shadow-btn-hover);
}

.benxi-btn__text {
	position: relative;
	z-index: 1;
}

/* Hamburger — hidden on desktop */
.benxi-hamburger {
	display: none;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	width: 44px;
	height: 44px;
	gap: 6px;
	border-radius: 8px;
	transition: background 0.25s var(--benxi-ease);
}

.benxi-hamburger:hover,
.benxi-hamburger:focus-visible {
	background: rgba(255, 255, 255, 0.1);
}

.benxi-header--scrolled .benxi-hamburger:hover,
.benxi-header--scrolled .benxi-hamburger:focus-visible {
	background: rgba(39, 53, 123, 0.08);
}

.benxi-hamburger__line {
	display: block;
	width: 24px;
	height: 2px;
	background: var(--benxi-white);
	border-radius: 2px;
	transition:
		transform 0.4s var(--benxi-ease-out),
		opacity 0.3s var(--benxi-ease),
		background 0.35s var(--benxi-ease);
}

.benxi-header--scrolled .benxi-hamburger__line {
	background: var(--benxi-dark);
}

.benxi-hamburger[aria-expanded="true"] .benxi-hamburger__line--1 {
	transform: translateY(8px) rotate(45deg);
}

.benxi-hamburger[aria-expanded="true"] .benxi-hamburger__line--2 {
	opacity: 0;
	transform: scaleX(0);
}

.benxi-hamburger[aria-expanded="true"] .benxi-hamburger__line--3 {
	transform: translateY(-8px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Mobile Full-Screen Menu
   -------------------------------------------------------------------------- */

.benxi-mobile-menu {
	position: fixed;
	inset: 0;
	z-index: 999;
	visibility: hidden;
	pointer-events: none;
}

.benxi-mobile-menu.is-open {
	visibility: visible;
	pointer-events: auto;
}

.benxi-mobile-menu__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(17, 17, 17, 0.6);
	backdrop-filter: blur(4px);
	-webkit-backdrop-filter: blur(4px);
	opacity: 0;
	transition: opacity 0.45s var(--benxi-ease);
}

.benxi-mobile-menu.is-open .benxi-mobile-menu__backdrop {
	opacity: 1;
}

.benxi-mobile-menu__panel {
	position: absolute;
	inset: 0;
	background: rgba(17, 17, 17, 0.95);
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	transform: translateX(100%);
	transition: transform 0.5s var(--benxi-ease-out);
}

.benxi-mobile-menu.is-open .benxi-mobile-menu__panel {
	transform: translateX(0);
}

.benxi-mobile-menu__close {
	position: absolute;
	top: 1.25rem;
	right: var(--benxi-gutter);
	width: 48px;
	height: 48px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.08);
	transition:
		background 0.3s var(--benxi-ease),
		transform 0.3s var(--benxi-ease);
}

.benxi-mobile-menu__close:hover,
.benxi-mobile-menu__close:focus-visible {
	background: rgba(255, 255, 255, 0.15);
	transform: rotate(90deg);
}

.benxi-mobile-menu__close-line {
	position: absolute;
	width: 20px;
	height: 2px;
	background: var(--benxi-white);
	border-radius: 2px;
}

.benxi-mobile-menu__close-line--1 {
	transform: rotate(45deg);
}

.benxi-mobile-menu__close-line--2 {
	transform: rotate(-45deg);
}

.benxi-mobile-menu__content {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 2.5rem;
	padding: 2rem;
	width: 100%;
	max-width: 400px;
}

.benxi-mobile-menu__list {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.25rem;
	width: 100%;
}

.benxi-mobile-menu__list .menu-item {
	opacity: 0;
	transform: translateY(20px);
	transition:
		opacity 0.4s var(--benxi-ease-out),
		transform 0.4s var(--benxi-ease-out);
	transition-delay: calc(var(--item-index, 0) * 0.06s + 0.15s);
}

.benxi-mobile-menu.is-open .benxi-mobile-menu__list .menu-item {
	opacity: 1;
	transform: translateY(0);
}

.benxi-mobile-menu__link {
	display: block;
	padding: 0.75rem 1.5rem;
	font-size: clamp(1.5rem, 5vw, 2rem);
	font-weight: 600;
	letter-spacing: -0.01em;
	color: rgba(255, 255, 255, 0.85);
	text-align: center;
	transition:
		color 0.3s var(--benxi-ease),
		transform 0.3s var(--benxi-ease-out);
}

.benxi-mobile-menu__link:hover,
.benxi-mobile-menu__link:focus-visible {
	color: var(--benxi-white);
	transform: scale(1.03);
}

.benxi-mobile-menu__link--active,
.current-menu-item .benxi-mobile-menu__link {
	color: var(--benxi-white);
	background: linear-gradient(90deg, var(--benxi-blue), var(--benxi-green));
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
}

.benxi-btn--mobile {
	opacity: 0;
	transform: translateY(20px);
	transition:
		opacity 0.4s var(--benxi-ease-out),
		transform 0.4s var(--benxi-ease-out);
	transition-delay: 0.5s;
	padding: 1rem 2.5rem;
	font-size: 1rem;
}

.benxi-mobile-menu.is-open .benxi-btn--mobile {
	opacity: 1;
	transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
	.benxi-header__inner {
		grid-template-columns: 1fr auto;
	}

	.benxi-header__nav {
		display: none;
	}

	.benxi-header__quote {
		display: none;
	}

	.benxi-hamburger {
		display: flex;
	}
}

@media (max-width: 768px) {
	.benxi-top-bar {
		display: none;
	}

	:root {
		--benxi-header-height: 72px;
		--benxi-header-height-scrolled: 64px;
		--benxi-logo-height: 50px;
		--benxi-logo-height-scrolled: 44px;
	}
}

@media (min-width: 769px) and (max-width: 1024px) {
	.benxi-top-bar {
		display: none;
	}
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
	}

	html {
		scroll-behavior: auto;
	}
}