/* ==========================================================================
   Header, primary nav, mobile drawer
   ========================================================================== */

.site-header {
	position: sticky;
	top: 0;
	z-index: 500;
	background: oklch(98.3% 0.004 90 / 0.88);
	backdrop-filter: saturate(1.1) blur(8px);
	border-bottom: 1px solid var(--line);
	transition: box-shadow var(--dur-base) var(--ease-out), padding var(--dur-base) var(--ease-out);
}

.site-header.is-condensed {
	box-shadow: var(--shadow-sm);
}

.header-inner {
	max-width: var(--container);
	margin-inline: auto;
	padding: 1.1rem clamp(1.25rem, 4vw, 2.5rem);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem;
	transition: padding var(--dur-base) var(--ease-out);
}

.site-header.is-condensed .header-inner {
	padding-block: 0.65rem;
}

.logo-link {
	display: flex;
	align-items: center;
	gap: 0.7rem;
	text-decoration: none;
	flex-shrink: 0;
	min-width: 0;
}

.logo-mark {
	height: 48px;
	width: auto;
	max-width: 200px;
	flex-shrink: 0;
	transition: height var(--dur-base) var(--ease-out);
}

.site-header.is-condensed .logo-mark {
	height: 38px;
}

.logo-bg {
	/* accent-dark: white letters on the base accent tone fall under 4.5:1. */
	fill: var(--accent-dark);
}

.logo-name {
	font-family: var(--font-display);
	font-size: 1.15rem;
	font-weight: 500;
	color: var(--primary);
	line-height: 1.2;
	max-width: 22ch;
}

.footer-col--brand .logo-name {
	color: var(--bg);
}

.footer-col--brand .logo-mark {
	height: 40px;
}

/* --- Primary nav (desktop) ------------------------------------------------ */
.primary-nav {
	flex: 1 1 auto;
	display: flex;
	justify-content: center;
}

.nav-menu {
	display: flex;
	align-items: center;
	gap: clamp(1.4rem, 2.4vw, 2.6rem);
	list-style: none;
	margin: 0;
	padding: 0;
}

.nav-menu > li {
	position: relative;
}

.nav-menu a {
	text-decoration: none;
	font-weight: 600;
	font-size: var(--fs-small);
	color: var(--primary);
	padding: 0.5em 0.1em;
	position: relative;
}

.nav-menu > li > a::after {
	content: '';
	position: absolute;
	left: 0;
	right: 100%;
	bottom: 0.1em;
	height: 1.5px;
	background: var(--accent-dark);
	transition: right var(--dur-base) var(--ease-out);
}

.nav-menu > li > a:hover::after,
.nav-menu > li.current-menu-item > a::after,
.nav-menu > li.current-menu-ancestor > a::after {
	right: 0;
}

.nav-menu .sub-menu {
	list-style: none;
	margin: 0;
	padding: 0.6rem;
	position: absolute;
	top: 100%;
	left: 50%;
	transform: translate(-50%, 8px);
	min-width: 240px;
	background: var(--bg-raised);
	border: 1px solid var(--line);
	border-radius: var(--radius);
	box-shadow: var(--shadow-md);
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
}

.nav-menu > li:hover > .sub-menu,
.nav-menu > li:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: translate(-50%, 0);
}

.nav-menu .sub-menu a {
	display: block;
	padding: 0.65em 0.9em;
	border-radius: var(--radius);
	white-space: nowrap;
}

.nav-menu .sub-menu a:hover {
	background: oklch(58% 0.05 155 / 0.1);
}

.nav-menu .sub-menu a::after {
	display: none;
}

/* --- Header actions --------------------------------------------------------- */
.header-actions {
	display: flex;
	align-items: center;
	gap: 1rem;
	flex-shrink: 0;
}

.burger {
	display: none;
	background: none;
	border: none;
	padding: 0.5rem;
	cursor: pointer;
	flex-shrink: 0;
}

.burger-box {
	display: inline-block;
	position: relative;
	width: 26px;
	height: 18px;
}

.burger-inner,
.burger-inner::before,
.burger-inner::after {
	position: absolute;
	left: 0;
	width: 26px;
	height: 2px;
	border-radius: 2px;
	background: var(--primary);
	transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out), top var(--dur-base) var(--ease-out);
}

.burger-inner {
	top: 8px;
}

.burger-inner::before {
	content: '';
	top: -8px;
}

.burger-inner::after {
	content: '';
	top: 8px;
}

.burger[aria-expanded="true"] .burger-inner {
	background: transparent;
}

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

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

/* --- Mobile drawer (direct child of <body>, never nested in <header>) ----- */
.mobile-drawer {
	position: fixed;
	top: 0;
	right: 0;
	height: 100%;
	width: min(360px, 86vw);
	background: var(--bg-raised);
	z-index: 900;
	transform: translateX(100%);
	transition: transform var(--dur-base) var(--ease-out);
	display: flex;
	flex-direction: column;
	overflow-y: auto;
	box-shadow: -12px 0 32px oklch(32% 0.06 230 / 0.14);
}

.mobile-drawer.is-open {
	transform: translateX(0);
}

.drawer-overlay {
	position: fixed;
	inset: 0;
	background: oklch(26% 0.045 230 / 0.4);
	z-index: 800;
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--dur-base) var(--ease-out), visibility var(--dur-base);
}

.drawer-overlay.is-open {
	opacity: 1;
	visibility: visible;
}

.mobile-drawer-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 1.25rem 1.5rem;
	border-bottom: 1px solid var(--line);
}

.mobile-drawer-head .logo-mark {
	height: 38px;
}

.drawer-close {
	background: none;
	border: none;
	cursor: pointer;
	padding: 0.5rem;
	color: var(--primary);
}

.mobile-nav {
	padding: 1rem 1.5rem;
}

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

.mobile-menu li {
	border-bottom: 1px solid var(--line);
}

.mobile-menu a {
	display: block;
	padding: 1em 0.2em;
	text-decoration: none;
	font-weight: 600;
	font-size: 1.05rem;
	color: var(--primary);
	min-height: 44px;
	display: flex;
	align-items: center;
}

.mobile-menu .sub-menu {
	list-style: none;
	margin: 0 0 0.5em;
	padding-left: 1rem;
}

.mobile-menu .sub-menu a {
	font-weight: 500;
	font-size: 0.98rem;
	color: var(--ink-soft);
	padding-block: 0.75em;
}

.mobile-drawer-contact {
	margin-top: auto;
	padding: 1.5rem;
	border-top: 1px solid var(--line);
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.mobile-drawer-contact a:not(.btn) {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	font-weight: 600;
	text-decoration: none;
	color: var(--primary);
}

.mobile-drawer-contact .btn {
	justify-content: center;
}

/* --- Breakpoints ------------------------------------------------------------ */
@media (max-width: 900px) {
	.site-header {
		backdrop-filter: none;
	}

	.primary-nav {
		display: none;
	}

	.header-cta {
		display: none;
	}

	.burger {
		display: inline-flex;
	}

	/* Reset any desktop hover/focus-within transforms so a lingering state
	   from a touch tap can never leave the submenu visually stuck open. */
	.nav-menu > li:hover > .sub-menu,
	.nav-menu > li:focus-within > .sub-menu {
		transform: translate(-50%, 8px);
		opacity: 0;
		visibility: hidden;
	}
}

@media (max-width: 600px) {
	.logo-name {
		font-size: 0.95rem;
		max-width: 21ch;
		line-height: 1.25;
	}

	.logo-mark {
		height: 38px;
	}

	/* Deliberately NOT 100vw: a full-width drawer leaves zero overlay area,
	   making tap-outside-to-close physically impossible on real phones. */
	.mobile-drawer {
		width: min(320px, 88vw);
	}
}