/*
 * Header — white utility bar + primary color navigation bar, and the
 * mobile drawer they collapse into below 1024px.
 */

.site-header {
	position: relative;
	background-color: var(--color-bg);
}

.site-header__top {
	position: relative;
	border-bottom: 1px solid var(--color-border);
}

.site-header__top-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-4);
	padding-block: var(--space-3);
}

.site-logo {
	display: inline-flex;
	text-decoration: none;
}

.site-logo img {
	display: block;
	height: 36px;
	width: auto;
}

.site-logo__text {
	font-family: var(--font-family-base);
	font-weight: var(--font-weight-extrabold);
	font-size: var(--font-size-lg);
	color: var(--color-primary-dark);
}

/* Secondary nav — white bar, muted links */

.secondary-nav {
	margin-left: auto;
}


.secondary-nav__menu {
	display: flex;
	align-items: center;
	gap: var(--space-4);
}

.secondary-nav__menu a {
	color: var(--color-text-muted);
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-medium);
	text-decoration: none;
}

.secondary-nav__menu a:hover {
	color: var(--color-primary);
}

.secondary-nav__menu .current-menu-item > a {
	color: var(--color-primary);
}

/* Search toggle + dropdown panel */
.search-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	padding: 0;
	border: none;
	background: transparent;
	color: var(--color-text-muted);
	cursor: pointer;
	flex-shrink: 0;
	transition: color var(--transition-fast);
}

.search-toggle:hover {
	color: var(--color-primary);
}

.header-search {
	position: absolute;
	top: 100%;
	left: 0;
	right: 0;
	z-index: 90;
	background-color: var(--color-bg);
	border-bottom: 1px solid var(--color-border);
	padding-block: var(--space-4);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-8px);
	transition: opacity var(--transition-base), transform var(--transition-base),
		visibility 0s linear var(--transition-base);
}

.header-search.is-open {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
	transition: opacity var(--transition-base), transform var(--transition-base),
		visibility 0s linear 0s;
}

.header-search .search-form {
	margin-bottom: 0;
}

/* Primary nav — brand-color strip, full-bleed */
.site-header__primary {
	background-color: var(--color-primary);
}

.primary-nav__menu {
	display: flex;
	align-items: center;
	gap: var(--space-5);
}

.primary-nav__menu a {
	display: inline-block;
	padding-block: var(--space-3);
	color: #fff;
	font-weight: var(--font-weight-semibold);
	text-decoration: none;
	border-bottom: 2px solid transparent;
	transition: border-color var(--transition-fast), color var(--transition-fast);
}

.primary-nav__menu a:hover {
	border-color: var(--color-primary-light);
}

.primary-nav__menu .current-menu-item > a {
	border-color: #fff;
}

/* Hamburger toggle (hidden on desktop) */
.hamburger {
	display: none;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	padding: 0;
	border: none;
	background: transparent;
	cursor: pointer;
	flex-shrink: 0;
}

.hamburger__box {
	position: relative;
	width: 22px;
	height: 16px;
	display: block;
}

.hamburger__box span {
	position: absolute;
	left: 0;
	width: 100%;
	height: 2px;
	background-color: var(--color-primary-dark);
	border-radius: var(--radius-full);
	transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base);
}

.hamburger__box span:nth-child(1) {
	top: 0;
}

.hamburger__box span:nth-child(2) {
	top: 7px;
}

.hamburger__box span:nth-child(3) {
	top: 14px;
}

.hamburger[aria-expanded="true"] .hamburger__box span:nth-child(1) {
	top: 7px;
	transform: rotate(45deg);
}

.hamburger[aria-expanded="true"] .hamburger__box span:nth-child(2) {
	opacity: 0;
}

.hamburger[aria-expanded="true"] .hamburger__box span:nth-child(3) {
	top: 7px;
	transform: rotate(-45deg);
}

/* Mobile nav drawer */
.mobile-nav {
	display: none;
}

html.nav-open {
	overflow: hidden;
}

@media (max-width: 1024px) {
	.site-header__primary,
	.secondary-nav {
		display: none;
	}

	.hamburger {
		display: inline-flex;
	}

	.mobile-nav {
		display: block;
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		z-index: 100;
		background-color: var(--color-bg);
		border-bottom: 1px solid var(--color-border);
		max-height: 80vh;
		overflow-y: auto;
		opacity: 0;
		visibility: hidden;
		transform: translateY(-8px);
		transition: opacity var(--transition-base), transform var(--transition-base),
			visibility 0s linear var(--transition-base);
	}

	.mobile-nav.is-open {
		opacity: 1;
		visibility: visible;
		transform: translateY(0);
		transition: opacity var(--transition-base), transform var(--transition-base),
			visibility 0s linear 0s;
	}

	.mobile-nav__section + .mobile-nav__section {
		border-top: 1px solid var(--color-border);
	}

	.mobile-nav__menu {
		display: flex;
		flex-direction: column;
		padding: var(--space-3) var(--space-4);
	}

	.mobile-nav__menu a {
		display: block;
		padding-block: var(--space-2);
		color: var(--color-text);
		font-weight: var(--font-weight-semibold);
		text-decoration: none;
	}

	.mobile-nav--secondary .mobile-nav__menu a {
		font-weight: var(--font-weight-medium);
		font-size: var(--font-size-sm);
		color: var(--color-text-muted);
	}
}