/**
 * Sterling site header.
 *
 * Dark sticky bar: logo left, condensed uppercase nav right, collapsing to a
 * full-screen overlay below the tablet breakpoint.
 */

.sterling-header {
	position: sticky;
	top: 0;
	z-index: 999;
	background-color: var(--sterling-header, #171717);
}

.sterling-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 2rem;
	max-width: 1400px;
	margin: 0 auto;
	padding: 1.25rem 2rem;
}

/* Branding
   ------------------------------------------------------------------------ */

.sterling-header__brand {
	flex: 0 0 auto;
	line-height: 0;
}

.sterling-header__brand img,
.sterling-header__logo {
	display: block;
	width: auto;
	height: 46px;
}

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

.sterling-nav__list {
	display: flex;
	align-items: center;
	gap: 2.75rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.sterling-nav__list a {
	display: block;
	padding: 0.25rem 0;
	color: #fff;
	font-family: var(--sterling-display, sans-serif);
	font-size: 1.0625rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	text-decoration: none;
	border-bottom: 2px solid transparent;
	transition: color 0.18s ease, border-color 0.18s ease;
}

.sterling-nav__list a:hover,
.sterling-nav__list a:focus-visible,
.sterling-nav__list .current-menu-item > a,
.sterling-nav__list .current_page_item > a {
	color: var(--sterling-gold, #bd9b51);
	border-bottom-color: var(--sterling-gold, #bd9b51);
}

/* Submenus stay simple: a dark dropdown panel. */
.sterling-nav__list li {
	position: relative;
}

.sterling-nav__list .sub-menu {
	position: absolute;
	top: 100%;
	left: 0;
	min-width: 220px;
	margin: 0;
	padding: 0.5rem 0;
	list-style: none;
	background-color: var(--sterling-surface, #1f1f1f);
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.18s ease;
}

.sterling-nav__list li:hover > .sub-menu,
.sterling-nav__list li:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
}

.sterling-nav__list .sub-menu a {
	padding: 0.5rem 1.25rem;
	border-bottom: 0;
	letter-spacing: 0.04em;
}

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

.sterling-header__toggle {
	display: none;
	position: relative;
	width: 44px;
	height: 44px;
	padding: 0;
	background: none;
	border: 0;
	cursor: pointer;
	color: #fff;
}

.sterling-header__toggle-bars,
.sterling-header__toggle-bars::before,
.sterling-header__toggle-bars::after {
	position: absolute;
	left: 10px;
	width: 24px;
	height: 2px;
	background-color: currentColor;
	transition: transform 0.2s ease, opacity 0.2s ease;
}

.sterling-header__toggle-bars {
	top: 21px;
}

.sterling-header__toggle-bars::before,
.sterling-header__toggle-bars::after {
	content: "";
	left: 0;
}

.sterling-header__toggle-bars::before {
	top: -7px;
}

.sterling-header__toggle-bars::after {
	top: 7px;
}

/* Toggle morphs into a close icon while the panel is open. */
.sterling-header__toggle[aria-expanded="true"] {
	color: var(--sterling-gold, #bd9b51);
}

.sterling-header__toggle[aria-expanded="true"] .sterling-header__toggle-bars {
	background-color: transparent;
}

.sterling-header__toggle[aria-expanded="true"] .sterling-header__toggle-bars::before {
	top: 0;
	transform: rotate(45deg);
}

.sterling-header__toggle[aria-expanded="true"] .sterling-header__toggle-bars::after {
	top: 0;
	transform: rotate(-45deg);
}

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

.sterling-mobile-nav {
	display: none;
	background-color: var(--sterling-header, #171717);
	border-top: 3px solid var(--sterling-gold, #bd9b51);
}

.sterling-mobile-nav__list {
	margin: 0;
	padding: 0.5rem 0 1.5rem;
	list-style: none;
}

.sterling-mobile-nav__list a {
	display: block;
	padding: 0.9rem 2rem;
	color: #fff;
	font-family: var(--sterling-display, sans-serif);
	font-size: 1.25rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	text-decoration: none;
}

.sterling-mobile-nav__list a:hover,
.sterling-mobile-nav__list a:focus-visible,
.sterling-mobile-nav__list .current-menu-item > a {
	color: var(--sterling-gold, #bd9b51);
}

.sterling-mobile-nav__list .sub-menu {
	margin: 0;
	padding: 0;
	list-style: none;
}

.sterling-mobile-nav__list .sub-menu a {
	padding-left: 3.25rem;
	font-size: 1.0625rem;
}

/* Breakpoint
   ------------------------------------------------------------------------ */

@media (max-width: 1024px) {
	.sterling-header__inner {
		padding: 1rem 1.25rem;
	}

	.sterling-nav {
		display: none;
	}

	.sterling-header__toggle {
		display: block;
	}

	.sterling-mobile-nav {
		display: block;
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		max-height: calc(100vh - 100%);
		overflow-y: auto;
	}

	.sterling-mobile-nav[hidden] {
		display: none;
	}

	.sterling-header__brand img,
	.sterling-header__logo {
		height: 38px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.sterling-nav__list a,
	.sterling-header__toggle-bars,
	.sterling-header__toggle-bars::before,
	.sterling-header__toggle-bars::after {
		transition: none;
	}
}