/**
 * RF header: announcement, header bar, primary navigation, mega panel,
 * utility navigation, menu toggle and scrim.
 *
 * States (set by modules/header.js and modules/mega-menu.js):
 *   .rf-header--solid | .rf-header--transparent   mode chosen by the template
 *   .is-scrolled      page scrolled past the top
 *   .is-locked        a menu/overlay is open (header stays visible and solid)
 *   .is-mega-open     a mega panel is open (drives the scrim)
 *   .is-hidden        hidden while scrolling down
 */

/* ----------------------------------------------------------- Announcement */
/* One thin line: [spacer][prev] message [next][close]; the equal side columns
   keep the message centred. Arrows appear only when there are 2+ messages. */
.rf-announcement {
	display: grid;
	grid-template-columns: 2.75rem 2.75rem minmax(0, 1fr) 2.75rem 2.75rem;
	align-items: center;
	min-height: var(--announcement-height);
	padding-inline: max(0px, calc(var(--gutter) - 0.75rem));
	background: var(--color-background);
	color: var(--color-text);
	border-bottom: 1px solid var(--color-hairline);
	font-size: var(--type-caption-size);
	line-height: var(--type-caption-leading);
	letter-spacing: var(--type-caption-tracking);
	text-align: center;
}

.rf-announcement__messages {
	grid-column: 3;
	min-width: 0;
}

.rf-announcement__message {
	margin: 0;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.rf-announcement a {
	text-decoration-line: underline;
	text-underline-offset: 0.2em;
}

.rf-announcement__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.75rem;
	height: var(--announcement-height);
	color: inherit;
}

.rf-announcement__btn[data-rf-announce-prev] { grid-column: 2; }
.rf-announcement__btn[data-rf-announce-next] { grid-column: 4; }
.rf-announcement__btn[data-rf-announce-close] { grid-column: 5; }

.rf-announcement__chevron {
	width: 0.4rem;
	height: 0.4rem;
	border-top: 1px solid currentColor;
	border-right: 1px solid currentColor;
	rotate: 45deg;
}

.rf-announcement__chevron--prev {
	rotate: -135deg;
}

.rf-announcement__x {
	position: relative;
	width: 0.625rem;
	height: 0.625rem;
}

.rf-announcement__x::before,
.rf-announcement__x::after {
	content: "";
	position: absolute;
	top: 50%;
	left: 0;
	width: 100%;
	height: 1px;
	background: currentColor;
	rotate: 45deg;
}

.rf-announcement__x::after {
	rotate: -45deg;
}

/* ------------------------------------------------------------------ Header */
.rf-header {
	--_bg: var(--color-bg);
	--_fg: var(--color-text);
	--_rule: var(--color-border);

	position: sticky;
	top: var(--admin-bar);
	z-index: var(--z-header);
	background: var(--_bg);
	color: var(--_fg);
	border-bottom: 1px solid var(--_rule);
	transition:
		background-color var(--duration-standard) var(--ease-standard),
		color var(--duration-standard) var(--ease-standard),
		border-color var(--duration-standard) var(--ease-standard),
		translate var(--duration-slow) var(--ease-standard);
}

/* Unscrolled solid header sits flush with the page; the rule appears once content scrolls under it. */
.rf-header--solid:not(.is-scrolled, .is-locked) {
	--_rule: transparent;
}

/* Transparent mode overlays the first section (e.g. a hero) and turns solid on
   scroll, hover, keyboard focus or when a menu is open. */
.rf-header--transparent {
	margin-bottom: calc(-1 * var(--header-height) - 1px);
}

.rf-header--transparent:not(.is-scrolled, .is-locked, :hover, :focus-within) {
	--_bg: transparent;
	--_fg: var(--color-on-image);
	--_rule: transparent;
}

.rf-header.is-hidden {
	translate: 0 calc(-100% - var(--admin-bar) - 2px);
}

.rf-header__bar {
	display: grid;
	/* Equal flexible sides keep the brand optically centred whatever the menus contain. */
	grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
	align-items: stretch;
	height: var(--header-height);
	max-width: var(--layout-wide);
	margin-inline: auto;
	padding-inline: var(--space-header-x);
}

.rf-header__start,
.rf-header__end {
	display: flex;
	align-items: stretch;
	min-width: 0;
}

.rf-header__end {
	justify-content: flex-end;
}

.rf-header__brand {
	display: flex;
	align-items: center;
	justify-content: center;
	padding-inline: var(--space-s);
}

/* ----------------------------------------------------------- Brand / logo */
.rf-brand {
	display: inline-flex;
	align-items: center;
	height: var(--brand-height);
	color: inherit;
	text-decoration: none;
}

.rf-brand:hover {
	text-decoration: none;
}

/* Text wordmark placeholder: the brand name set as a mark, not as body text.
   Negative end margin cancels trailing tracking so the word centres optically. */
.rf-brand__wordmark {
	font-family: var(--type-display-font);
	font-size: calc(var(--brand-height) * 1.18);
	font-weight: var(--weight-regular);
	line-height: 1;
	letter-spacing: 0.34em;
	margin-inline-end: -0.34em;
	white-space: nowrap;
}

/* A real logo (SVG/image) takes exactly the wordmark's height: layout doesn't change. */
.rf-brand__logo {
	height: 130%;
	width: auto;
	max-width: 14rem;
}

/* Logo over imagery. The light (white) logo shows only while the transparent
   header sits on a dark image; everywhere else the dark logo shows. With only a
   dark logo uploaded, it is inverted to white instead (monochrome logos only). */
.rf-brand__logo--light {
	display: none;
}

body:not(.rf-hero-tone-dark) .rf-header--transparent:not(.is-scrolled, .is-locked, :hover, :focus-within) .rf-brand__logo--light {
	display: block;
}

body:not(.rf-hero-tone-dark) .rf-header--transparent:not(.is-scrolled, .is-locked, :hover, :focus-within) .rf-brand--pair .rf-brand__logo--dark {
	display: none;
}

body:not(.rf-hero-tone-dark) .rf-header--transparent:not(.is-scrolled, .is-locked, :hover, :focus-within) .rf-brand--single .rf-brand__logo--dark {
	filter: invert(1);
}

/* ------------------------------------------------------------ Menu toggle */
.rf-menu-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: flex-start;
	width: 2.75rem;
	height: 100%;
	min-height: 2.75rem;
	color: inherit;
}

.rf-menu-toggle__icon,
.rf-menu-toggle__icon::before {
	display: block;
	width: 1.375rem;
	height: 1px;
	background: currentColor;
}

.rf-menu-toggle__icon {
	position: relative;
	translate: 0 -0.2rem;
}

.rf-menu-toggle__icon::before {
	content: "";
	position: absolute;
	top: 0.45rem;
	left: 0;
	width: 0.875rem;
}

/* ----------------------------------------------------- Primary navigation */
.rf-pnav {
	display: none;
}

.rf-pnav__list {
	display: flex;
	align-items: stretch;
	gap: var(--space-nav-item);
	margin: 0;
	padding: 0;
	list-style: none;
}

.rf-pnav__item {
	display: flex;
	align-items: stretch;
}

.rf-pnav__link,
.rf-pnav__trigger {
	display: inline-flex;
	align-items: center;
	min-height: 2.75rem;
	color: inherit;
	font-family: var(--type-nav-font);
	font-size: var(--type-nav-size);
	font-weight: var(--type-nav-weight);
	line-height: var(--type-nav-leading);
	letter-spacing: var(--type-nav-tracking);
	white-space: nowrap;
	text-decoration-line: underline;
	text-decoration-color: transparent;
	text-decoration-thickness: 1px;
	text-underline-offset: 0.45em;
	transition: text-decoration-color var(--duration-standard) var(--ease-standard);
}

.rf-pnav__link:hover,
.rf-pnav__trigger:hover,
.rf-pnav__item.is-open > .rf-pnav__trigger,
.rf-pnav__item.is-current > :is(.rf-pnav__link, .rf-pnav__trigger),
.rf-pnav__item.is-ancestor > :is(.rf-pnav__link, .rf-pnav__trigger) {
	text-decoration-color: currentColor;
}

/* --------------------------------------------------------------- Mega panel */
.rf-mega {
	position: absolute;
	top: 100%;
	inset-inline: 0;
	max-height: calc(100vh - var(--header-height) - var(--admin-bar));
	max-height: calc(100dvh - var(--header-height) - var(--admin-bar));
	overflow-y: auto;
	overscroll-behavior: contain;
	background: var(--color-bg);
	color: var(--color-text);
	border-top: 1px solid var(--color-border);
	opacity: 0;
	visibility: hidden;
	translate: 0 -0.375rem;
	transition:
		opacity var(--duration-menu) var(--ease-standard),
		translate var(--duration-menu) var(--ease-standard),
		visibility 0s linear var(--duration-menu);
}

.rf-pnav__item.is-open > .rf-mega {
	opacity: 1;
	visibility: visible;
	translate: 0 0;
	transition-delay: 0s;
}

.rf-mega__inner {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	gap: var(--space-xl);
	max-width: var(--layout-wide);
	margin-inline: auto;
	padding: var(--space-xl) var(--space-header-x) var(--space-2xl);
}

.rf-mega.has-features .rf-mega__inner {
	grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
}

.rf-mega__columns {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
	gap: var(--space-l) var(--space-xl);
	align-content: start;
}

.rf-mega__heading {
	margin-bottom: var(--space-s);
	color: var(--color-text-muted);
	font-size: var(--type-caption-size);
	line-height: var(--type-caption-leading);
	letter-spacing: var(--type-caption-tracking);
}

.rf-mega__heading a {
	color: inherit;
}

.rf-mega__links {
	display: grid;
	gap: var(--space-3xs);
	margin: 0;
	padding: 0;
	list-style: none;
}

.rf-mega__link {
	display: inline-block;
	padding-block: var(--space-3xs);
	font-size: var(--type-body-size);
	line-height: var(--type-nav-leading);
	letter-spacing: var(--type-nav-tracking);
}


.rf-mega__features {
	display: grid;
	/* Cards stay small and sit at the panel's far edge; the panel never grows to fit an image. */
	grid-template-columns: repeat(auto-fit, minmax(9rem, 13rem));
	justify-content: end;
	gap: var(--space-m);
	align-content: start;
}

/* Feature card (image + caption); used by the mega panel, reusable elsewhere. */
.rf-feature {
	display: block;
	color: inherit;
}

.rf-feature:hover {
	text-decoration: none;
}

.rf-feature__media {
	display: block;
	aspect-ratio: var(--ratio-editorial);
	overflow: hidden;
	background: var(--color-surface);
}

.rf-feature__media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: scale var(--duration-slow) var(--ease-standard);
}

.rf-feature:hover .rf-feature__media img {
	scale: 1.02;
}

.rf-feature__caption {
	display: block;
	margin-top: var(--space-xs);
	font-size: var(--type-caption-size);
	line-height: var(--type-caption-leading);
	letter-spacing: var(--type-caption-tracking);
}

/* ------------------------------------------------------------ Utility nav */
.rf-unav {
	display: flex;
	align-items: stretch;
	gap: var(--space-m);
	margin: 0;
	padding: 0;
	list-style: none;
}

.rf-unav__item {
	display: flex;
	align-items: stretch;
}

.rf-unav__control {
	display: inline-flex;
	align-items: center;
	min-height: 2.75rem;
	color: inherit;
	font-family: var(--type-nav-font);
	font-size: var(--type-nav-size);
	line-height: var(--type-nav-leading);
	letter-spacing: var(--type-nav-tracking);
	white-space: nowrap;
	text-decoration-line: underline;
	text-decoration-color: transparent;
	text-decoration-thickness: 1px;
	text-underline-offset: 0.45em;
	transition: text-decoration-color var(--duration-standard) var(--ease-standard);
}

.rf-unav__control:hover {
	text-decoration-color: currentColor;
}

.rf-cart-count {
	font-variant-numeric: tabular-nums;
}

/* Mobile: the right side shows the cart only; search and account live in the menu. */
.rf-unav__item--search,
.rf-unav__item--account {
	display: none;
}

/* ------------------------------------------------------------------- Scrim */
.rf-scrim {
	position: fixed;
	inset: 0;
	z-index: var(--z-scrim);
	background: var(--color-overlay);
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition:
		opacity var(--duration-menu) var(--ease-standard),
		visibility 0s linear var(--duration-menu);
}

.rf-header.is-mega-open + .rf-scrim {
	opacity: 1;
	visibility: visible;
	transition-delay: 0s;
}

/* ------------------------------------------------------------ Breakpoints */
/* Tablet and up: account and search join the cart. */
@media (min-width: 600px) {
	.rf-unav__item--account,
	.rf-unav__item--search {
		display: flex;
	}

	.rf-unav__item--account {
		display: none;
	}
}

/* Desktop navigation from 900px ("compact" until 1200px through fluid gaps). */
@media (min-width: 900px) {
	.rf-menu-toggle {
		display: none;
	}

	.rf-pnav {
		display: flex;
		align-items: stretch;
	}

	.rf-unav__item--account {
		display: flex;
	}
}

@media (min-width: 1200px) {
	.rf-unav {
		gap: var(--space-l);
	}
}

/* Touch-only devices never get a hover-driven solid transparent header. */
@media (hover: none) {
	.rf-header--transparent:not(.is-scrolled, .is-locked, :focus-within) {
		--_bg: transparent;
		--_fg: var(--color-on-image);
		--_rule: transparent;
	}

	body:not(.rf-hero-tone-dark) .rf-header--transparent:not(.is-scrolled, .is-locked, :focus-within) .rf-brand__logo--light {
		display: block;
	}

	body:not(.rf-hero-tone-dark) .rf-header--transparent:not(.is-scrolled, .is-locked, :focus-within) .rf-brand--pair .rf-brand__logo--dark {
		display: none;
	}

	body:not(.rf-hero-tone-dark) .rf-header--transparent:not(.is-scrolled, .is-locked, :focus-within) .rf-brand--single .rf-brand__logo--dark {
		filter: invert(1);
	}
}