/**
 * Header & primary navigation.
 */

.bz-announcement-bar {
	background: var(--bz-ink);
	color: #fff;
	text-align: center;
	font-size: var(--bz-fs-xs);
	letter-spacing: 0.04em;
	padding: var(--bz-space-2) var(--bz-space-4);
}

.site-header {
	background: var(--bz-surface);
	border-bottom: 1px solid var(--bz-border);
	position: sticky;
	top: 0;
	z-index: var(--bz-z-header);
}

.site-header__inner {
	display: grid;
	grid-template-columns: auto 1fr auto;
	align-items: center;
	gap: var(--bz-space-5);
	padding-top: var(--bz-space-3);
	padding-bottom: var(--bz-space-3);
}

.site-branding .site-title,
.site-branding .custom-logo-link {
	font-family: var(--bz-font-display);
	font-weight: 600;
	font-size: 1.5rem;
	letter-spacing: 0.02em;
	text-transform: uppercase;
	color: var(--bz-ink);
}
.site-branding img.custom-logo { max-height: 44px; width: auto; }

.main-navigation { justify-self: center; }
.primary-menu {
	display: flex;
	align-items: center;
	gap: var(--bz-space-1);
	list-style: none;
	margin: 0;
	padding: 0;
}
.primary-menu > li { position: relative; }
.primary-menu > li > a {
	display: inline-block;
	padding: var(--bz-space-3);
	font-size: var(--bz-fs-sm);
	font-weight: 500;
	color: var(--bz-ink);
	position: relative;
}
.primary-menu > li > a::after {
	content: "";
	position: absolute;
	left: var(--bz-space-3);
	right: var(--bz-space-3);
	bottom: 6px;
	height: 1px;
	background: var(--bz-ink);
	transform: scaleX(0);
	transform-origin: left;
	transition: transform var(--bz-duration-base) var(--bz-ease);
}
.primary-menu > li:hover > a::after,
.primary-menu > li.current-menu-item > a::after { transform: scaleX(1); }
.primary-menu > li:hover > a { color: var(--bz-accent); }

.primary-menu ul.sub-menu {
	position: absolute;
	top: 100%;
	left: 0;
	background: var(--bz-surface);
	border: 1px solid var(--bz-border);
	border-radius: var(--bz-radius-md);
	box-shadow: var(--bz-shadow-md);
	min-width: 220px;
	padding: var(--bz-space-2) 0;
	list-style: none;
	margin: 0;
	opacity: 0;
	visibility: hidden;
	transform: translateY(6px);
	transition: opacity var(--bz-duration-fast) var(--bz-ease), transform var(--bz-duration-fast) var(--bz-ease), visibility var(--bz-duration-fast);
}
.primary-menu li:hover > ul.sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.primary-menu ul.sub-menu a { display: block; padding: var(--bz-space-2) var(--bz-space-4); }
.primary-menu ul.sub-menu a::after { display: none; }

.site-header__actions {
	display: flex;
	align-items: center;
	gap: var(--bz-space-4);
	justify-self: end;
}
.site-header__actions a,
.bz-search-toggle {
	position: relative;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	color: var(--bz-ink);
	font-size: 1.1rem;
	background: none;
	border: none;
	cursor: pointer;
	padding: var(--bz-space-2);
	transition: color var(--bz-duration-fast) var(--bz-ease);
}
.site-header__actions a:hover,
.bz-search-toggle:hover { color: var(--bz-accent); }

.bz-cart-count {
	position: absolute;
	top: -2px;
	right: -6px;
	min-width: 16px;
	height: 16px;
	padding: 0 4px;
	background: var(--bz-accent);
	color: #fff;
	border-radius: var(--bz-radius-pill);
	font-size: 10px;
	font-weight: 700;
	display: inline-flex;
	align-items: center;
	justify-content: center;
}

.bz-search-panel {
	border-top: 1px solid var(--bz-border);
	padding: var(--bz-space-4) 0;
	background: var(--bz-surface-alt);
}
.bz-search-panel[hidden] { display: none; }
.bz-search-form { display: flex; gap: var(--bz-space-2); max-width: 560px; margin: 0 auto; }
.bz-search-form .search-field { flex: 1; }

.bz-menu-toggle {
	display: none;
	flex-direction: column;
	gap: 5px;
	background: none;
	border: none;
	cursor: pointer;
	padding: var(--bz-space-2);
}
.bz-menu-toggle__bar { width: 22px; height: 2px; background: var(--bz-ink); transition: transform var(--bz-duration-fast) var(--bz-ease), opacity var(--bz-duration-fast); }
.bz-menu-toggle[aria-expanded="true"] .bz-menu-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.bz-menu-toggle[aria-expanded="true"] .bz-menu-toggle__bar:nth-child(2) { opacity: 0; }
.bz-menu-toggle[aria-expanded="true"] .bz-menu-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }