/**
 * Navigation: desktop primary menu, mobile drawer, breadcrumbs.
 */

/* ---------- Desktop primary menu (64rem+) ---------- */

.primary-nav {
	display: none;
}

.primary-nav ul {
	margin: 0;
	padding: 0;
	list-style: none;
}

.primary-nav__list {
	display: flex;
	align-items: center;
	gap: var(--nscb-space-1);
}

.primary-nav li {
	position: relative;
}

.primary-nav a {
	position: relative;
	display: block;
	padding: var(--nscb-space-3) var(--nscb-space-3);
	color: var(--nscb-color-text-secondary);
	font-size: var(--nscb-text-sm);
	font-weight: var(--nscb-font-weight-medium);
	letter-spacing: 0.02em;
	text-decoration: none;
	white-space: nowrap;
}

/* Underline indicator that grows on hover/focus and stays on the current page. */
.primary-nav__list > li > a::after {
	content: "";
	position: absolute;
	right: var(--nscb-space-3);
	bottom: var(--nscb-space-2);
	left: var(--nscb-space-3);
	height: 2px;
	border-radius: 2px;
	background-color: var(--nscb-color-highlight);
	transform: scaleX(0);
	transform-origin: left center;
	transition: transform var(--nscb-duration-base) var(--nscb-ease-out);
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav .current-menu-item > a,
.primary-nav .current-menu-ancestor > a {
	color: var(--nscb-color-text);
}

.primary-nav__list > li > a:hover::after,
.primary-nav__list > li > a:focus-visible::after,
.primary-nav__list > .current-menu-item > a::after,
.primary-nav__list > .current-menu-ancestor > a::after {
	transform: scaleX(1);
}

/* Second level: opens on hover or keyboard focus, no script needed. */
.primary-nav .sub-menu {
	position: absolute;
	top: 100%;
	left: 0;
	z-index: var(--nscb-z-overlay);
	min-width: 12rem;
	padding: var(--nscb-space-2);
	border: 1px solid var(--nscb-color-border);
	border-radius: var(--nscb-radius-md);
	background-color: var(--nscb-color-bg-secondary);
	box-shadow: var(--nscb-shadow-md);
	opacity: 0;
	visibility: hidden;
	transform: translateY(4px);
	transition:
		opacity var(--nscb-duration-fast) var(--nscb-ease-standard),
		transform var(--nscb-duration-fast) var(--nscb-ease-standard),
		visibility 0s linear var(--nscb-duration-fast);
}

.primary-nav li:hover > .sub-menu,
.primary-nav li:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: none;
	transition-delay: 0s;
}

.primary-nav .sub-menu a {
	padding: var(--nscb-space-2) var(--nscb-space-3);
	border-radius: var(--nscb-radius-sm);
}

.primary-nav .sub-menu a:hover {
	background-color: var(--nscb-color-surface);
}

/* Administrator-only hint when no menu is assigned. */
.primary-nav--notice a {
	color: var(--nscb-color-text-secondary);
	font-size: var(--nscb-text-xs);
}

@media (min-width: 64rem) {
	.primary-nav {
		display: block;
		margin-inline: auto;
	}
}

@media (min-width: 64rem) and (max-width: 79.99rem) {
	.primary-nav a {
		padding-inline: var(--nscb-space-2);
	}

	.primary-nav__list > li > a::after {
		right: var(--nscb-space-2);
		left: var(--nscb-space-2);
	}
}

/* ---------- Mobile drawer (below 64rem) ---------- */

.mobile-nav {
	position: fixed;
	inset: 0;
	z-index: var(--nscb-z-modal);
	visibility: hidden;
	pointer-events: none;
	transition: visibility 0s linear var(--nscb-duration-base);
}

.mobile-nav.is-open {
	visibility: visible;
	pointer-events: auto;
	transition-delay: 0s;
}

.mobile-nav__backdrop {
	position: absolute;
	inset: 0;
	background-color: var(--nscb-overlay-strong);
	opacity: 0;
	transition: opacity var(--nscb-duration-base) var(--nscb-ease-standard);
}

.mobile-nav.is-open .mobile-nav__backdrop {
	opacity: 1;
}

.mobile-nav__panel {
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	display: flex;
	flex-direction: column;
	width: min(24rem, 88vw);
	padding: 0 var(--nscb-space-5) max(var(--nscb-space-5), env(safe-area-inset-bottom));
	overflow-y: auto;
	overscroll-behavior: contain;
	border-left: 1px solid var(--nscb-color-border);
	background-color: var(--nscb-color-bg-secondary);
	box-shadow: var(--nscb-shadow-lg);
	transform: translateX(100%);
	transition: transform var(--nscb-duration-base) var(--nscb-ease-out);
}

.mobile-nav.is-open .mobile-nav__panel {
	transform: none;
}

.mobile-nav__panel:focus {
	outline: none;
}

.mobile-nav__head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	min-height: var(--nscb-header-height);
	margin-bottom: var(--nscb-space-2);
	border-bottom: 1px solid var(--nscb-color-border);
}

.mobile-nav__title {
	color: var(--nscb-color-text-secondary);
	font-size: var(--nscb-text-xs);
	font-weight: 600;
	letter-spacing: var(--nscb-tracking-wide);
	text-transform: uppercase;
}

.mobile-nav__close {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.75rem;
	height: 2.75rem;
	margin-inline-end: calc(-1 * var(--nscb-space-2));
	padding: 0;
	border: 0;
	border-radius: var(--nscb-radius-pill);
	background: transparent;
	color: var(--nscb-color-text);
}

.mobile-nav__close:hover {
	background-color: var(--nscb-color-surface);
}

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

.mobile-nav__list a {
	display: flex;
	align-items: center;
	min-height: 3.25rem;
	padding-block: var(--nscb-space-2);
	border-bottom: 1px solid color-mix(in srgb, var(--nscb-color-border) 60%, transparent);
	color: var(--nscb-color-text);
	font-family: var(--nscb-font-heading);
	font-size: var(--nscb-text-lg);
	font-weight: var(--nscb-font-weight-medium);
	text-decoration: none;
}

.mobile-nav__list .sub-menu a {
	padding-inline-start: var(--nscb-space-4);
	color: var(--nscb-color-text-secondary);
	font-size: var(--nscb-text-md);
}

.mobile-nav__list .current-menu-item > a {
	color: var(--nscb-color-highlight);
	box-shadow: inset 3px 0 0 var(--nscb-color-highlight);
	padding-inline-start: var(--nscb-space-3);
}

.mobile-nav__actions {
	display: grid;
	gap: var(--nscb-space-3);
	margin-top: auto;
	padding-top: var(--nscb-space-6);
}

html.nscb-nav-open {
	overflow: hidden;
}

/* Without JavaScript: show the menu as a static block under the header. */
.no-js .mobile-nav {
	position: static;
	visibility: visible;
	pointer-events: auto;
}

.no-js .mobile-nav__backdrop,
.no-js .mobile-nav__head {
	display: none;
}

.no-js .mobile-nav__panel {
	position: static;
	width: auto;
	padding-block: var(--nscb-space-2) var(--nscb-space-5);
	border-left: 0;
	border-bottom: 1px solid var(--nscb-color-border);
	box-shadow: none;
	transform: none;
}

@media (min-width: 64rem) {
	.mobile-nav,
	.no-js .mobile-nav {
		display: none;
	}
}

/* ---------- Breadcrumbs ---------- */

.nscb-breadcrumbs {
	margin-bottom: var(--nscb-space-5);
	color: var(--nscb-color-text-secondary);
	font-size: var(--nscb-text-xs);
	letter-spacing: 0.02em;
}

.nscb-breadcrumbs__list {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--nscb-space-1) var(--nscb-space-2);
	margin: 0;
	padding: 0;
	list-style: none;
}

.nscb-breadcrumbs__item + .nscb-breadcrumbs__item::before {
	content: "/";
	margin-inline-end: var(--nscb-space-2);
	opacity: 0.5;
}

.nscb-breadcrumbs a {
	text-decoration: none;
}

.nscb-breadcrumbs a:hover {
	color: var(--nscb-color-highlight);
	text-decoration: underline;
}

.nscb-breadcrumbs [aria-current="page"] {
	color: var(--nscb-color-text);
}