/* ==========================================================================
   Global header (design: Site Header.dc.html)
   Desktop (>=1000px): sticky; row = logo · search · phone · Quote List;
   nav bar below with disclosure submenus.
   Mobile: grid = toggle · centred logo · quote; search row; nav panel.
   ========================================================================== */

.site-header {
	position: relative;
	z-index: 40;
	background: var(--bu-color-white);
	border-bottom: 1px solid var(--bu-color-border);
}

.site-header__bar {
	max-width: var(--bu-container);
	margin-inline: auto;
	padding: 16px var(--bu-gutter);
	display: flex;
	align-items: center;
	gap: 36px;
}

/* Brand */
.site-brand {
	flex: none;
	min-width: 0;
}

.site-brand .custom-logo-link,
.site-brand__name {
	display: block;
}

.site-brand .custom-logo {
	display: block;
	width: auto;
	height: 56px;
}

.site-brand__name {
	/* Same box as the 56px design logo, so the header keeps its height with the text fallback. */
	min-height: 56px;
	display: flex;
	align-items: center;
	font-family: var(--bu-font-heading);
	font-weight: var(--bu-weight-bold);
	font-size: 30px;
	line-height: 1;
	text-transform: uppercase;
	color: var(--bu-color-heading);
}

/* Search */
.site-search {
	position: relative;
	flex: 1;
	max-width: 560px;
	margin-left: auto;
}

/* Phone */
.site-header__phone {
	display: flex;
	align-items: center;
	gap: 10px;
	font-size: var(--bu-text-ui);
	font-weight: var(--bu-weight-medium);
	white-space: nowrap;
}

/* Quote List */
.quote-button {
	display: flex;
	align-items: center;
	gap: 12px;
	height: var(--bu-control-height);
	padding: 0 18px;
	background: var(--bu-color-ink);
	border: 1px solid var(--bu-color-ink);
	color: var(--bu-color-white);
	font-size: var(--bu-text-ui);
	font-weight: var(--bu-weight-semibold);
	white-space: nowrap;
	transition: background-color var(--bu-transition), border-color var(--bu-transition);
}

.quote-button:hover {
	background: var(--bu-color-accent);
	border-color: var(--bu-color-accent);
	color: var(--bu-color-white);
}

.quote-button__icon {
	display: none;
}

.quote-button__count {
	min-width: 26px;
	height: 26px;
	padding: 0 8px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	background: var(--bu-color-accent);
	color: var(--bu-color-white);
	font-size: 14px;
	font-weight: var(--bu-weight-semibold);
}

.quote-button:hover .quote-button__count {
	background: var(--bu-color-ink);
}

/* Nav toggle (mobile only) */
.nav-toggle {
	display: none;
	width: var(--bu-touch-target);
	height: var(--bu-touch-target);
	align-items: center;
	justify-content: center;
	padding: 0;
	background: var(--bu-color-white);
	border: 1px solid var(--bu-color-border-strong);
}

.nav-toggle__close,
.nav-toggle[aria-expanded="true"] .nav-toggle__open {
	display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__close {
	display: block;
}

/* Primary navigation -------------------------------------------------- */

.primary-nav {
	border-top: 1px solid var(--bu-color-hairline);
}

.primary-nav__list {
	list-style: none;
	margin: 0 auto;
	max-width: var(--bu-container);
	padding: 0 var(--bu-gutter);
	display: flex;
	align-items: stretch;
	justify-content: space-between;
	gap: 2px;
}

.primary-nav__list > li {
	position: relative;
	display: flex;
	align-items: stretch;
}

.primary-nav__list > li > a {
	display: flex;
	align-items: center;
	height: 50px;
	padding: 0 8px;
	border-bottom: 2px solid transparent;
	font-size: var(--bu-text-ui);
	font-weight: var(--bu-weight-medium);
	white-space: nowrap;
}

.primary-nav__list > li > a:hover,
.primary-nav__list > .current-menu-item > a,
.primary-nav__list > .current-menu-ancestor > a,
.primary-nav__list > .current-menu-parent > a,
.primary-nav__list > li.is-open > a {
	border-bottom-color: var(--bu-color-accent);
	color: var(--bu-color-ink);
}

.submenu-toggle {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	margin-left: -6px;
	padding: 0;
	background: transparent;
	border: 0;
	color: var(--bu-color-ink);
}

.submenu-toggle .bu-icon {
	transition: transform var(--bu-transition);
}

.submenu-toggle[aria-expanded="true"] .bu-icon {
	transform: rotate(180deg);
}

.primary-nav .sub-menu {
	display: none;
	position: absolute;
	top: 100%;
	left: 0;
	z-index: 45;
	min-width: 260px;
	margin: 0;
	padding: 12px 24px 16px;
	list-style: none;
	background: var(--bu-color-white);
	border: 1px solid var(--bu-color-border);
	box-shadow: var(--bu-shadow-panel);
}

.primary-nav .sub-menu a {
	display: block;
	padding: 8px 0;
	border-bottom: 1px solid var(--bu-color-hairline-2);
	font-size: var(--bu-text-ui);
}

.primary-nav .sub-menu .current-menu-item > a {
	color: var(--bu-color-accent);
}

.primary-nav li.is-open > .sub-menu {
	display: block;
}

/* Without JS, reveal submenus on hover/keyboard focus. */
.no-js .primary-nav li:hover > .sub-menu,
.no-js .primary-nav li:focus-within > .sub-menu {
	display: block;
}

.primary-nav__contact {
	display: none;
}

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

@media (min-width: 1000px) {
	.site-header {
		position: sticky;
		top: var(--bu-admin-bar);
	}

	/* Keep the last two submenus inside the viewport (unless they are also
	   among the first two items, e.g. in a short menu). */
	.primary-nav__list > li:nth-last-child(-n+2):not(:nth-child(-n+2)) > .sub-menu {
		left: auto;
		right: 0;
	}
}

/* Narrow desktop: a long real menu wraps onto centred rows instead of
   overflowing the viewport. */
@media (min-width: 1000px) and (max-width: 1279.98px) {
	.primary-nav__list {
		flex-wrap: wrap;
		justify-content: center;
		column-gap: 4px;
	}

	.primary-nav__list > li > a {
		height: 44px;
	}

	.primary-nav__list > li:nth-child(n+5) > .sub-menu {
		left: auto;
		right: 0;
	}
}

/* Mobile -------------------------------------------------------------- */

@media (max-width: 999.98px) {
	.site-header__bar {
		display: grid;
		grid-template-columns: var(--bu-touch-target) minmax(0, 1fr) auto;
		grid-template-areas:
			"toggle brand quote"
			"search search search";
		gap: 18px 10px;
		padding: 8px var(--bu-gutter-mobile) 12px;
	}

	.nav-toggle {
		grid-area: toggle;
	}

	.js .nav-toggle {
		display: flex;
	}

	.site-brand {
		grid-area: brand;
		justify-self: center;
	}

	.site-brand .custom-logo {
		height: 40px;
		max-width: 100%;
	}

	.site-brand__name {
		min-height: 40px;
		justify-content: center;
		font-size: 24px;
		text-align: center;
	}

	.quote-button {
		grid-area: quote;
		justify-self: end;
		height: var(--bu-touch-target);
		padding: 0 12px 0 10px;
		gap: 8px;
		font-size: 14px;
	}

	.quote-button__icon {
		display: block;
	}

	.quote-button__label {
		position: absolute;
		width: 1px;
		height: 1px;
		overflow: hidden;
		clip: rect(0, 0, 0, 0);
		clip-path: inset(50%);
		white-space: nowrap;
	}

	.quote-button__count {
		min-width: 22px;
		height: 22px;
		padding: 0 6px;
		font-size: 13px;
	}

	.site-header__phone {
		display: none;
	}

	.site-search {
		grid-area: search;
		max-width: none;
		margin: 0;
	}

	/* Hairline between the logo row and the search row (design). */
	.site-search::before {
		content: "";
		position: absolute;
		top: -10px;
		left: calc(var(--bu-gutter-mobile) * -1);
		right: calc(var(--bu-gutter-mobile) * -1);
		border-top: 1px solid var(--bu-color-hairline);
	}

	.site-search .search-field {
		padding: 0 14px;
	}

	.site-search input[type="search"] {
		font-size: 16px; /* prevents iOS zoom on focus */
	}

	/* Navigation: expanded list without JS; panel with JS. */
	.primary-nav {
		border-top: 1px solid var(--bu-color-border-strong);
	}

	.js .primary-nav {
		display: none;
	}

	.js .primary-nav.is-open {
		display: block;
		position: fixed;
		top: var(--bu-nav-top, 61px);
		left: 0;
		right: 0;
		bottom: 0;
		z-index: 60;
		overflow-y: auto;
		overscroll-behavior: contain;
		padding-bottom: 24px;
		background: var(--bu-color-white);
	}

	.primary-nav__list {
		display: block;
		padding: 0;
	}

	.primary-nav__list > li {
		flex-wrap: wrap;
		border-bottom: 1px solid var(--bu-color-hairline);
	}

	.primary-nav__list > li > a {
		flex: 1;
		height: auto;
		min-height: 54px;
		padding: 0 var(--bu-gutter-mobile);
		border-bottom: 0;
		font-size: 17px;
		font-weight: var(--bu-weight-semibold);
		white-space: normal;
	}

	.primary-nav__list > li > a:hover,
	.primary-nav__list > .current-menu-item > a,
	.primary-nav__list > .current-menu-ancestor > a {
		color: var(--bu-color-accent);
	}

	.submenu-toggle {
		width: 54px;
		min-height: 54px;
		margin: 0;
	}

	.primary-nav .sub-menu {
		position: static;
		flex-basis: 100%;
		min-width: 0;
		padding: 0 var(--bu-gutter-mobile) 8px;
		border: 0;
		box-shadow: none;
		background: var(--bu-color-surface);
	}

	.no-js .primary-nav .sub-menu {
		display: block;
	}

	.primary-nav .sub-menu a {
		padding: 12px 0;
		border-bottom: 0;
		border-top: 1px solid var(--bu-color-border);
		font-size: var(--bu-text-base);
	}

	.primary-nav .sub-menu li:first-child > a {
		border-top: 0;
	}

	.primary-nav__contact {
		display: block;
		padding: 20px var(--bu-gutter-mobile) 8px;
	}

	.primary-nav__contact-title {
		padding-bottom: 8px;
		font-size: var(--bu-text-xs);
		letter-spacing: var(--bu-tracking-eyebrow);
		text-transform: uppercase;
		font-weight: var(--bu-weight-semibold);
		color: var(--bu-color-muted);
	}

	.primary-nav__contact-list {
		margin: 0;
		padding: 0;
		list-style: none;
		border-bottom: 1px solid var(--bu-color-hairline);
	}

	.primary-nav__contact-list a {
		display: flex;
		align-items: center;
		min-height: 48px;
		border-top: 1px solid var(--bu-color-hairline);
		font-weight: var(--bu-weight-semibold);
	}

	/* Scroll lock while the panel is open. */
	.has-nav-open {
		overflow: hidden;
	}
}

/* Mega-menu panels (design: Site Header.dc.html; one approved screenshot per menu) -------------
   Shared layout; each menu's group count and product count come from inc/mega-menu.php.
   Panel: 32px/36px padding, columns minmax(220px,1fr) | minmax(0,2fr) | auto, 48px apart.
   Desktop only: below 1000px the menu's own sub-menus are used. */

.bu-mega {
	display: none;
}

@media (min-width: 1000px) {
	.primary-nav {
		position: relative;
	}

	.primary-nav__list > li.has-mega {
		position: static;
	}

	.primary-nav__list > li.has-mega > .sub-menu,
	.no-js .primary-nav__list > li.has-mega:hover > .sub-menu,
	.no-js .primary-nav__list > li.has-mega:focus-within > .sub-menu {
		display: none;
	}

	.bu-mega {
		position: absolute;
		top: 100%;
		right: 0;
		left: 0;
		z-index: 45;
		background: var(--bu-color-white);
		border-top: 1px solid var(--bu-color-border);
		border-bottom: 1px solid var(--bu-color-border);
		box-shadow: var(--bu-shadow-panel);
		cursor: auto;
	}

	.primary-nav__list > li.has-mega.is-open > .bu-mega,
	.no-js .primary-nav__list > li.has-mega:hover > .bu-mega,
	.no-js .primary-nav__list > li.has-mega:focus-within > .bu-mega {
		display: block;
	}

	.bu-mega__inner {
		display: grid;
		grid-template-columns: minmax(220px, 1fr) minmax(0, 2fr) auto;
		gap: 48px;
		max-width: var(--bu-container);
		margin: 0 auto;
		padding: 32px var(--bu-gutter) 36px;
	}

	/* The CTA is inline-flex: its line box uses this strut, as in the design (normal). */
	.bu-mega__intro {
		line-height: normal;
	}

	.bu-mega__title {
		margin: 0;
		font-family: var(--bu-font-heading);
		font-weight: var(--bu-weight-bold);
		font-size: 34px;
		line-height: 1;
		text-transform: uppercase;
		color: var(--bu-color-ink);
	}

	.bu-mega__blurb {
		max-width: 300px;
		margin: 12px 0 20px;
		font-size: 15px;
		line-height: 1.55;
		color: var(--bu-color-text-2);
		text-wrap: pretty;
	}

	/* Design line-heights are the font's own (normal); 2.5px padding offset by margin keeps a
	   24px target without moving the text. */
	.bu-mega__all {
		display: inline-flex;
		align-items: center;
		gap: 8px;
		margin: -2.5px 0;
		padding: 2.5px 0;
		font-size: 15px;
		line-height: normal;
		font-weight: var(--bu-weight-semibold);
		color: var(--bu-color-accent);
	}

	.bu-mega__groups {
		display: grid;
		grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
		gap: 28px;
	}

	.bu-mega__group-title {
		margin: 0 0 10px;
		font-size: 12px;
		font-weight: var(--bu-weight-semibold);
		letter-spacing: .1em;
		line-height: normal;
		text-transform: uppercase;
		color: var(--bu-color-muted);
	}

	.bu-mega__group ul {
		display: flex;
		flex-direction: column;
		margin: 0;
		padding: 0;
		list-style: none;
	}

	.bu-mega__group a {
		display: block;
		padding: 8px 0;
		border-bottom: 1px solid var(--bu-color-hairline-2);
		font-size: 15px;
		line-height: normal;
	}

	.bu-mega__group a:hover,
	.bu-mega__product:hover .bu-mega__name {
		color: var(--bu-color-accent);
	}

	.bu-mega__products {
		display: flex;
		gap: 16px;
	}

	.bu-mega__product {
		display: block;
		width: 120px;
	}

	.bu-mega__thumb {
		display: flex;
		align-items: center;
		justify-content: center;
		width: 120px;
		height: 140px;
		padding-bottom: 8px;
		border-bottom: 1px solid var(--bu-color-hairline);
	}

	.bu-mega__thumb img {
		max-width: 100%;
		max-height: 100%;
		width: auto;
		height: auto;
		object-fit: contain;
	}

	.bu-mega__name {
		display: block;
		margin-top: 8px;
		font-size: 13px;
		line-height: 1.35;
		color: var(--bu-color-text-2);
	}
}

@media (max-width: 999.98px) {
	.submenu-toggle--mega-only {
		display: none;
	}
}