/**
 * EB Global Theme - Header Styles
 *
 * Fixed header with transparent-to-solid scroll state,
 * desktop navigation with dropdown menus, language switcher,
 * and mobile full-screen overlay.
 *
 * @package EB_Global_Theme
 * @since 1.0.0
 */

/* ==========================================================================
   Header Base
   ========================================================================== */

.eb-site-header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 1000;
	background: transparent;
	transition: background-color var(--transition-normal),
	            box-shadow var(--transition-normal),
	            backdrop-filter var(--transition-normal);
}

.eb-site-header.scrolled {
	background: rgba(255, 255, 255, 0.92);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.eb-site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: var(--header-height);
	max-width: var(--container-max);
	margin: 0 auto;
	padding: 0 var(--container-padding);
}

/* ==========================================================================
   Logo
   ========================================================================== */

.eb-site-header__logo {
	flex-shrink: 0;
	z-index: 2;
}

.eb-site-header__logo img {
	max-height: 44px;
	width: auto;
	display: block;
}

.eb-site-header__logo-text {
	font-family: var(--font-heading);
	font-size: 1.375rem;
	font-weight: 700;
	color: var(--color-primary);
	text-decoration: none;
	letter-spacing: -0.01em;
}

/* ==========================================================================
   Desktop Navigation
   ========================================================================== */

.eb-site-nav {
	display: none;
	flex: 1;
	justify-content: center;
}

.eb-site-nav__list {
	display: flex;
	align-items: center;
	gap: 4px;
	list-style: none;
	margin: 0;
	padding: 0;
}

.eb-site-nav__list > li {
	position: relative;
	margin: 0;
}

.eb-site-nav__list > li > a {
	display: flex;
	align-items: center;
	padding: 10px 14px;
	font-family: var(--font-body);
	font-size: 0.8125rem;
	font-weight: 500;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--color-text);
	text-decoration: none;
	border-radius: var(--radius-sm);
	transition: color var(--transition-fast), background-color var(--transition-fast);
}

.eb-site-nav__list > li > a:hover,
.eb-site-nav__list > li > a:focus {
	color: var(--color-accent);
}

.eb-site-nav__list > li.current-menu-item > a,
.eb-site-nav__list > li.current_page_item > a,
.eb-site-nav__list > li.current-menu-ancestor > a {
	color: var(--color-accent);
}

/* ==========================================================================
   Dropdown Menus
   ========================================================================== */

.eb-site-nav__list .sub-menu {
	position: absolute;
	top: 100%;
	left: 50%;
	transform: translateX(-50%) translateY(8px);
	min-width: 200px;
	padding: 12px 0;
	background: #ffffff;
	border-radius: var(--radius-md);
	box-shadow: var(--shadow-lg);
	list-style: none;
	margin: 0;
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--transition-normal),
	            transform var(--transition-normal),
	            visibility var(--transition-normal);
	pointer-events: none;
}

.eb-site-nav__list > li:hover > .sub-menu,
.eb-site-nav__list > li:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: translateX(-50%) translateY(0);
	pointer-events: auto;
}

.eb-site-nav__list .sub-menu li {
	margin: 0;
}

.eb-site-nav__list .sub-menu a {
	display: block;
	padding: 10px 20px;
	font-size: 0.8125rem;
	font-weight: 400;
	letter-spacing: 0.02em;
	text-transform: none;
	color: var(--color-text-secondary);
	text-decoration: none;
	transition: color var(--transition-fast), background-color var(--transition-fast);
}

.eb-site-nav__list .sub-menu a:hover,
.eb-site-nav__list .sub-menu a:focus {
	color: var(--color-accent);
	background-color: var(--color-surface);
}

/* Dropdown arrow indicator for parent items */
.eb-site-nav__list > li.menu-item-has-children > a::after {
	content: '';
	display: inline-block;
	width: 6px;
	height: 6px;
	margin-left: 6px;
	border-right: 1.5px solid currentColor;
	border-bottom: 1.5px solid currentColor;
	transform: rotate(45deg) translateY(-2px);
	transition: transform var(--transition-fast);
}

.eb-site-nav__list > li.menu-item-has-children:hover > a::after {
	transform: rotate(-135deg) translateY(-2px);
}

/* ==========================================================================
   Language Switcher
   ========================================================================== */

.eb-site-lang {
	display: none;
	align-items: center;
	gap: 6px;
	flex-shrink: 0;
	margin-left: 24px;
}

.eb-site-lang__link {
	font-family: var(--font-body);
	font-size: 0.8125rem;
	font-weight: 400;
	color: var(--color-text-light);
	text-decoration: none;
	padding: 6px 4px;
	transition: color var(--transition-fast);
}

.eb-site-lang__link:hover,
.eb-site-lang__link:focus {
	color: var(--color-text);
}

.eb-site-lang__link--active {
	font-weight: 600;
	color: var(--color-text);
}

.eb-site-lang__divider {
	color: var(--color-border);
	font-size: 0.75rem;
}

/* ==========================================================================
   Mobile Hamburger
   ========================================================================== */

.eb-site-header__hamburger {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	gap: 5px;
	min-width: 44px;
	min-height: 44px;
	width: 44px;
	height: 44px;
	padding: 10px;
	border: none;
	background: transparent;
	cursor: pointer;
	border-radius: var(--radius-sm);
	transition: background-color var(--transition-fast);
}

.eb-site-header__hamburger:hover,
.eb-site-header__hamburger:focus {
	background-color: var(--color-surface);
}

.eb-site-header__hamburger:focus-visible {
	outline: 2px solid var(--color-accent);
	outline-offset: 2px;
}

.eb-site-header__hamburger-line {
	display: block;
	width: 20px;
	height: 1.5px;
	background-color: var(--color-text);
	border-radius: 1px;
	transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ==========================================================================
   Mobile Full-Screen Overlay
   ========================================================================== */

.eb-site-mobile-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 1001;
	background: #ffffff;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.eb-site-mobile-overlay[hidden] {
	display: none;
}

.eb-site-mobile-overlay.active {
	opacity: 1;
	visibility: visible;
}

.eb-site-mobile-overlay__inner {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 32px;
	padding: 24px;
	width: 100%;
	max-width: 400px;
}

.eb-site-mobile-overlay__close {
	position: absolute;
	top: 20px;
	right: 20px;
	min-width: 44px;
	min-height: 44px;
	width: 44px;
	height: 44px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: none;
	background: transparent;
	font-size: 1.5rem;
	color: var(--color-text);
	cursor: pointer;
	border-radius: var(--radius-sm);
}

.eb-site-mobile-overlay__close:hover,
.eb-site-mobile-overlay__close:focus {
	background-color: var(--color-surface);
}

.eb-site-mobile-overlay__close:focus-visible {
	outline: 2px solid var(--color-accent);
	outline-offset: 2px;
}

.eb-site-mobile-overlay__nav .eb-site-mobile-overlay__list {
	list-style: none;
	margin: 0;
	padding: 0;
	text-align: center;
}

.eb-site-mobile-overlay__list li {
	margin: 0 0 8px;
}

.eb-site-mobile-overlay__list > li > a {
	display: inline-block;
	padding: 12px 16px;
	font-family: var(--font-heading);
	font-size: 1.75rem;
	font-weight: 600;
	color: var(--color-text);
	text-decoration: none;
	transition: color var(--transition-fast);
}

.eb-site-mobile-overlay__list > li > a:hover,
.eb-site-mobile-overlay__list > li > a:focus {
	color: var(--color-accent);
}

/* Mobile sub-menu */
.eb-site-mobile-overlay__list .sub-menu {
	list-style: none;
	margin: 0;
	padding: 4px 0 12px;
}

.eb-site-mobile-overlay__list .sub-menu a {
	display: inline-block;
	padding: 8px 16px;
	font-size: 1rem;
	font-weight: 400;
	color: var(--color-text-secondary);
	text-decoration: none;
}

.eb-site-mobile-overlay__list .sub-menu a:hover {
	color: var(--color-accent);
}

.eb-site-mobile-overlay__lang {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-top: 16px;
}

.eb-site-mobile-overlay__lang .eb-site-lang__link {
	font-size: 1rem;
	padding: 8px 4px;
}

/* ==========================================================================
   Responsive: Desktop (769px+)
   ========================================================================== */

@media (min-width: 769px) {
	.eb-site-nav {
		display: flex;
	}

	.eb-site-lang {
		display: flex;
	}

	.eb-site-header__hamburger {
		display: none;
	}

	.eb-site-mobile-overlay {
		display: none !important;
	}
}

/* Large desktop — more spacing in nav */
@media (min-width: 1200px) {
	.eb-site-nav__list {
		gap: 8px;
	}

	.eb-site-nav__list > li > a {
		padding: 10px 16px;
	}
}