/* units: rem on a 10px root (html { font-size: 62.5% }); 1rem = 10px */
/**
 * Site header.
 *
 * Mobile first: below 80em (1280px) the nav is a white panel opened by the
 * hamburger and the search button is a round icon; from 80em it is the white
 * pill nav with hover dropdowns. Logical properties throughout, so the logo sits
 * on the inline-start edge in RTL and LTR alike.
 */

/* header.php prints the landmark; this loads only with the component, so the
   plain fallback header keeps its normal flow. */
.acini-site-header {
	position: fixed;
	inset-inline: 0;
	inset-block-start: var(--wp-admin--admin-bar--height, 0);
	z-index: 200;
}

.acini-hdr {
	--acini-hdr-control: calc(var(--acini-space-xl) + var(--acini-space-xs)); /* 48px */
	position: relative;
	color: var(--acini-text);
	transition: color var(--acini-transition);
}

.acini-hdr[data-tone="dark"] {
	color: var(--acini-text-inverse);
}

/* Over a hero (script.js): the white logo replaces the blue one. */
.acini-hdr.is-over-hero .acini-logo--auto .acini-logo__img--default {
	opacity: 0;
}

.acini-hdr.is-over-hero .acini-logo--auto .acini-logo__img--inverse {
	opacity: 1;
}

/* ---- Bar -------------------------------------------------------------- */

.acini-hdr__bar {
	position: relative;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--acini-space-md);
	padding-block: var(--acini-space-lg) var(--acini-space-md);
	padding-inline: var(--acini-gutter-page);
}

.acini-hdr__logo {
	flex: none;
}

.acini-hdr__actions {
	display: flex;
	align-items: center;
	gap: var(--acini-space-sm);
}

/* Without JS the menu cannot be toggled, so below the switch width it simply
   wraps under the bar instead of hiding. */
.acini-hdr:not(.is-js) .acini-hdr__bar {
	flex-wrap: wrap;
}

.acini-hdr:not(.is-js) .acini-hdr__nav {
	order: 3;
	flex-basis: 100%;
}

/* ---- Nav: mobile panel ------------------------------------------------- */

.acini-hdr__nav {
	color: var(--acini-text);
	background: var(--acini-bg);
	border-radius: var(--acini-radius-2xl);
	box-shadow: var(--acini-shadow-card);
	padding: var(--acini-space-sm) var(--acini-space-lg);
}

.acini-hdr.is-js .acini-hdr__nav {
	position: absolute;
	inset-inline: var(--acini-gutter-page);
	inset-block-start: calc(100% + var(--acini-space-2xs));
	opacity: 0;
	visibility: hidden;
	transform: translateY(calc(-1 * var(--acini-space-xs)));
	transition:
		opacity var(--acini-transition),
		transform 0.4s var(--acini-ease-slide),
		visibility 0s linear 0.4s;
}

.acini-hdr.is-js.is-menu-open .acini-hdr__nav {
	opacity: 1;
	visibility: visible;
	transform: none;
	transition-delay: 0s;
}

.acini-hdr__list,
.acini-hdr__sub {
	margin: 0;
	padding: 0;
	list-style: none;
}

.acini-hdr__link {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--acini-space-2xs);
	inline-size: 100%;
	min-block-size: var(--acini-hdr-control);
	padding: 0;
	color: inherit;
	font: inherit;
	font-size: var(--acini-text-base);
	font-weight: var(--acini-weight-medium);
	text-align: start;
	text-decoration: none;
	background: none;
	border: 0;
	cursor: pointer;
}

.acini-hdr__trigger[aria-expanded="true"] {
	text-decoration: underline;
	text-underline-offset: 0.25em;
}

.acini-hdr__chevron {
	flex: none;
	transition: transform var(--acini-transition);
}

.acini-hdr__trigger[aria-expanded="true"] .acini-hdr__chevron {
	transform: rotate(180deg);
}

/* Sub-menu as an accordion on mobile. */
.acini-hdr__sub {
	display: none;
	padding-block-end: var(--acini-space-xs);
	padding-inline-start: var(--acini-space-md);
}

.acini-hdr__item.is-open > .acini-hdr__sub {
	display: block;
}

.acini-hdr__sublink {
	display: block;
	padding-block: var(--acini-space-xs);
	color: var(--acini-text-muted);
	font-size: var(--acini-text-sm);
	text-decoration: none;
}

/* "ENG": separated from the rest, quieter. Set via the menu item's CSS class. */
.acini-hdr__item--utility {
	margin-block-start: var(--acini-space-xs);
	border-block-start: 1px solid var(--acini-border);
	color: var(--acini-text-muted);
}

/* Without JS the accordions would be unreachable; show them. */
.acini-hdr:not(.is-js) .acini-hdr__sub {
	display: block;
}

/* ---- Search + menu buttons ---------------------------------------------- */

.acini-hdr__search-btn,
.acini-hdr__menu-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--acini-space-xs);
	block-size: var(--acini-hdr-control);
	min-inline-size: var(--acini-hdr-control);
	padding: 0;
	font: inherit;
	font-size: var(--acini-text-sm);
	font-weight: var(--acini-weight-semibold);
	border: 1px solid transparent;
	border-radius: var(--acini-radius-pill);
	cursor: pointer;
	transition:
		background-color var(--acini-transition),
		color var(--acini-transition);
}

.acini-hdr__search-btn {
	color: var(--acini-text-inverse);
	background: var(--acini-bg-inverse-raised);
}

.acini-hdr[data-tone="dark"] .acini-hdr__search-btn {
	border-color: var(--acini-border-inverse);
}

.acini-hdr__search-btn[aria-expanded="true"] {
	color: var(--acini-text);
	background: var(--acini-bg);
}

.acini-hdr__search-btn[aria-expanded="true"] .acini-hdr__search-text {
	text-decoration: underline;
	text-underline-offset: 0.25em;
}

/* Closed: dark disc. Open: white disc with a dark cross. */
.acini-hdr__menu-btn {
	color: var(--acini-text-inverse);
	background: var(--acini-bg-inverse-raised);
}

.acini-hdr[data-tone="dark"] .acini-hdr__menu-btn {
	border-color: var(--acini-border-inverse);
}

.acini-hdr__menu-btn[aria-expanded="true"] {
	color: var(--acini-text);
	background: var(--acini-bg);
}

.acini-hdr__icon--close,
.acini-hdr__menu-btn[aria-expanded="true"] .acini-hdr__icon--open {
	display: none;
}

.acini-hdr__menu-btn[aria-expanded="true"] .acini-hdr__icon--close {
	display: block;
}

/* Label is for screen readers on the round mobile button. */
.acini-hdr__search-text {
	position: absolute;
	inline-size: 1px;
	block-size: 1px;
	margin: -1px;
	overflow: hidden;
	white-space: nowrap;
	clip-path: inset(50%);
}

/* ---- Search bar ---------------------------------------------------------- */

.acini-hdr__searchwrap {
	position: absolute;
	inset-inline: 0;
	inset-block-start: calc(var(--acini-space-lg) + var(--acini-hdr-control) + var(--acini-space-2xs));
	padding-inline: var(--acini-gutter-page);
	opacity: 0;
	visibility: hidden;
	transform: translateY(calc(-1 * var(--acini-space-xs)));
	transition:
		opacity var(--acini-transition),
		transform 0.4s var(--acini-ease-slide),
		visibility 0s linear 0.4s;
}

.acini-hdr.is-search-open .acini-hdr__searchwrap {
	opacity: 1;
	visibility: visible;
	transform: none;
	transition-delay: 0s;
}

.acini-hdr__search {
	position: relative; /* the autocomplete list (.acini-search-panel) hangs from it */
	display: flex;
	align-items: center;
	gap: var(--acini-space-sm);
	block-size: calc(var(--acini-space-xl) + var(--acini-space-md)); /* 56px */
	padding-inline: var(--acini-space-md);
	color: var(--acini-text-inverse);
	background: var(--acini-bg-inverse-raised);
	border: 1px solid var(--acini-border-inverse);
	border-radius: var(--acini-radius-lg);
}

.acini-hdr__search-submit {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: none;
	padding: 0;
	color: inherit;
	background: none;
	border: 0;
	cursor: pointer;
}

.acini-hdr__search-input {
	flex: 1;
	min-inline-size: 0;
	color: inherit;
	font: inherit;
	font-size: var(--acini-text-sm);
	background: none;
	border: 0;
}

.acini-hdr__search-input::placeholder {
	color: var(--acini-text-inverse-muted);
	opacity: 1;
}

.acini-hdr__search-input:focus-visible {
	outline: none;
}

.acini-hdr__search:focus-within {
	outline: 2px solid var(--acini-focus);
	outline-offset: 2px;
}

/* ---- Hover (pointer devices only) ---------------------------------------- */

@media (hover: hover) {
	.acini-hdr__link:hover,
	.acini-hdr__sublink:hover {
		text-decoration: underline;
		text-underline-offset: 0.25em;
	}

	.acini-hdr__search-btn:hover {
		color: var(--acini-text);
		background: var(--acini-bg);
	}

	.acini-hdr__menu-btn:hover {
		color: var(--acini-text);
		background: var(--acini-bg);
	}
}

/* ---- Tablet: the search button gains its text label (>= 640px) ----------- */

@media (min-width: 40em) {
	.acini-hdr__search-btn {
		padding-inline: var(--acini-space-lg);
	}

	.acini-hdr__search-text {
		position: static;
		inline-size: auto;
		block-size: auto;
		margin: 0;
		overflow: visible;
		clip-path: none;
	}
}

/* ---- Desktop: pill nav (>= 1280px) --------------------------------------- */

@media (min-width: 80em) {
	/* Three equal-weight tracks keep the pill centred whatever the logo's width. */
	.acini-hdr__bar,
	.acini-hdr:not(.is-js) .acini-hdr__bar {
		display: grid;
		grid-template-columns: 1fr auto 1fr;
	}

	.acini-hdr__actions {
		justify-self: end;
	}

	/* Logo box from the design: 116 x 28. */
	.acini-hdr__logo .acini-logo__img {
		inline-size: 11.6rem;
		block-size: 2.8rem;
		max-block-size: none;
		object-fit: contain;
		object-position: center;
	}

	.acini-hdr__menu-btn {
		display: none;
	}

	/* The nav is always shown here, whatever the JS state. */
	.acini-hdr__nav,
	.acini-hdr.is-js .acini-hdr__nav {
		position: static;
		opacity: 1;
		visibility: visible;
		transform: none;
		padding: 0 var(--acini-space-xs);
		border: 1px solid var(--acini-border);
		border-radius: var(--acini-radius-xl);
		box-shadow: none;
	}

	.acini-hdr:not(.is-js) .acini-hdr__nav {
		order: 0;
		flex-basis: auto;
	}

	.acini-hdr__list {
		display: flex;
		align-items: center;
		gap: var(--acini-space-2xs);
	}

	.acini-hdr__link {
		inline-size: auto;
		padding-inline: var(--acini-space-sm);
		font-size: var(--acini-text-sm);
	}

	.acini-hdr__item--sub {
		position: relative;
	}

	.acini-hdr__item--utility {
		margin-block-start: 0;
		margin-inline-start: var(--acini-space-xs);
		padding-inline-start: var(--acini-space-xs);
		border-block-start: 0;
		border-inline-start: 1px solid var(--acini-border);
	}

	/* Dropdown panel: fades in under its trigger, aligned to its start edge. */
	.acini-hdr__sub,
	.acini-hdr:not(.is-js) .acini-hdr__sub {
		display: block;
		position: absolute;
		inset-inline-start: 0;
		inset-block-start: calc(100% + var(--acini-space-xs));
		inline-size: max-content;
		min-inline-size: 100%;
		padding: var(--acini-space-xs);
		background: var(--acini-bg);
		border-radius: var(--acini-radius-xl);
		box-shadow: var(--acini-shadow-card);
		opacity: 0;
		visibility: hidden;
		transform: translateY(calc(-1 * var(--acini-space-2xs)));
		transition:
			opacity var(--acini-transition),
			transform var(--acini-transition),
			visibility 0s linear 180ms;
	}

	.acini-hdr__item.is-open > .acini-hdr__sub {
		opacity: 1;
		visibility: visible;
		transform: none;
		transition-delay: 0s;
	}

	/* No JS: the panel opens on hover/focus alone. */
	.acini-hdr:not(.is-js) .acini-hdr__item--sub:hover > .acini-hdr__sub,
	.acini-hdr:not(.is-js) .acini-hdr__item--sub:focus-within > .acini-hdr__sub {
		opacity: 1;
		visibility: visible;
		transform: none;
		transition-delay: 0s;
	}

	.acini-hdr__sublink {
		padding: var(--acini-space-sm) var(--acini-space-md);
		color: var(--acini-text);
	}
}