/**
 * CLM Navigation — desktop mega menu, mobile hamburger drawer, and the
 * mobile-only sticky bottom bar. Mobile-first, 44px touch targets.
 */

/* ---------------------------------------------------------------------
   Header shell
--------------------------------------------------------------------- */

.clm-header {
	position: sticky;
	top: 0;
	z-index: var(--clm-z-sticky);
	background: var(--clm-surface-raised);
	border-bottom: 1px solid var(--clm-border);
}

.clm-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--clm-space-3);
	padding-block: var(--clm-space-3);
}

.clm-header__logo img {
	height: 32px;
	width: auto;
}

@media (min-width: 1024px) {
	.clm-header__logo img {
		height: 40px;
	}
}

/* ---------------------------------------------------------------------
   Hamburger toggle (mobile) — 44x44 tap target
--------------------------------------------------------------------- */

.clm-nav-hamburger {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: var(--clm-touch-min);
	height: var(--clm-touch-min);
	border-radius: var(--clm-radius-sm);
	background: transparent;
}

.clm-nav-hamburger:hover {
	background: var(--clm-primary-tint-10);
}

.clm-nav-hamburger__bars {
	position: relative;
	width: 22px;
	height: 16px;
}

.clm-nav-hamburger__bars span {
	position: absolute;
	left: 0;
	width: 100%;
	height: 2px;
	background: var(--clm-text);
	border-radius: 2px;
	transition: transform var(--clm-duration-base) var(--clm-ease), opacity var(--clm-duration-base) var(--clm-ease);
}

.clm-nav-hamburger__bars span:nth-child(1) { top: 0; }
.clm-nav-hamburger__bars span:nth-child(2) { top: 7px; }
.clm-nav-hamburger__bars span:nth-child(3) { top: 14px; }

.clm-nav-hamburger[aria-expanded="true"] .clm-nav-hamburger__bars span:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.clm-nav-hamburger[aria-expanded="true"] .clm-nav-hamburger__bars span:nth-child(2) {
	opacity: 0;
}

.clm-nav-hamburger[aria-expanded="true"] .clm-nav-hamburger__bars span:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
	.clm-nav-hamburger {
		display: none;
	}
}

/* ---------------------------------------------------------------------
   Mobile drawer — slide-in from left, full height
--------------------------------------------------------------------- */

.clm-nav-drawer-overlay {
	position: fixed;
	inset: 0;
	background: rgba(40, 37, 29, 0.5);
	z-index: var(--clm-z-drawer);
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--clm-duration-base) var(--clm-ease);
}

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

.clm-nav-drawer {
	position: fixed;
	top: 0;
	left: 0;
	bottom: 0;
	width: min(85vw, 360px);
	height: 100vh;
	height: 100dvh;
	background: var(--clm-surface-raised);
	z-index: var(--clm-z-drawer);
	transform: translateX(-100%);
	transition: transform var(--clm-duration-slow) var(--clm-ease);
	overflow-y: auto;
	display: flex;
	flex-direction: column;
	box-shadow: var(--clm-shadow-lg);
}

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

.clm-nav-drawer__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: var(--clm-space-4);
	border-bottom: 1px solid var(--clm-border);
}

.clm-nav-drawer__close {
	width: var(--clm-touch-min);
	height: var(--clm-touch-min);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 24px;
	border-radius: var(--clm-radius-sm);
}

.clm-nav-drawer__body {
	padding: var(--clm-space-2) 0;
	flex: 1 1 auto;
}

.clm-nav-drawer__link {
	display: flex;
	align-items: center;
	min-height: var(--clm-touch-min);
	padding: var(--clm-space-3) var(--clm-space-4);
	font-size: var(--clm-fs-body);
	color: var(--clm-text);
	text-decoration: none;
	border-bottom: 1px solid var(--clm-border);
}

.clm-nav-drawer__link:hover,
.clm-nav-drawer__link:focus-visible {
	background: var(--clm-primary-tint-10);
}

.clm-nav-drawer__submenu-toggle {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: 100%;
	min-height: var(--clm-touch-min);
	padding: var(--clm-space-3) var(--clm-space-4);
	font-size: var(--clm-fs-body);
	font-weight: 600;
	border-bottom: 1px solid var(--clm-border);
}

.clm-nav-drawer__submenu {
	max-height: 0;
	overflow: hidden;
	background: var(--clm-bg);
	transition: max-height var(--clm-duration-base) var(--clm-ease);
}

.clm-nav-drawer__submenu.is-open {
	max-height: 1000px;
}

.clm-nav-drawer__submenu .clm-nav-drawer__link {
	padding-left: var(--clm-space-6);
	border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

@media (min-width: 1024px) {
	.clm-nav-drawer,
	.clm-nav-drawer-overlay {
		display: none;
	}
}

/* ---------------------------------------------------------------------
   Desktop mega menu
--------------------------------------------------------------------- */

.clm-nav-desktop {
	display: none;
}

@media (min-width: 1024px) {
	.clm-nav-desktop {
		display: flex;
		align-items: center;
		gap: var(--clm-space-5);
	}

	.clm-nav-desktop__item {
		position: relative;
	}

	.clm-nav-desktop__link {
		display: inline-flex;
		align-items: center;
		min-height: var(--clm-touch-min);
		font-weight: 600;
		font-size: var(--clm-fs-body-sm);
		color: var(--clm-text);
		text-decoration: none;
		padding-inline: var(--clm-space-2);
	}

	.clm-nav-desktop__link:hover,
	.clm-nav-desktop__item:hover .clm-nav-desktop__link,
	.clm-nav-desktop__link:focus-visible {
		color: var(--clm-primary);
	}

	.clm-nav-mega {
		position: absolute;
		top: 100%;
		left: 50%;
		transform: translateX(-50%);
		width: min(90vw, 880px);
		background: var(--clm-surface-raised);
		border: 1px solid var(--clm-border);
		border-radius: var(--clm-radius);
		box-shadow: var(--clm-shadow-lg);
		padding: var(--clm-space-5);
		display: grid;
		grid-template-columns: repeat(3, 1fr);
		gap: var(--clm-space-5);
		opacity: 0;
		visibility: hidden;
		translate: 0 8px;
		transition: opacity var(--clm-duration-base) var(--clm-ease), translate var(--clm-duration-base) var(--clm-ease), visibility var(--clm-duration-base);
		z-index: var(--clm-z-dropdown);
	}

	.clm-nav-desktop__item:hover .clm-nav-mega,
	.clm-nav-desktop__item:focus-within .clm-nav-mega {
		opacity: 1;
		visibility: visible;
		translate: 0 0;
	}

	.clm-nav-mega__col-title {
		font-size: var(--clm-fs-caption);
		text-transform: uppercase;
		letter-spacing: 0.05em;
		color: var(--clm-text-muted);
		margin-bottom: var(--clm-space-2);
	}

	.clm-nav-mega__link {
		display: block;
		padding-block: var(--clm-space-1);
		font-size: var(--clm-fs-body-sm);
		color: var(--clm-text);
		text-decoration: none;
	}

	.clm-nav-mega__link:hover {
		color: var(--clm-primary);
	}
}

/* ---------------------------------------------------------------------
   Mobile-only sticky bottom nav bar — 5 items max
   Search, Saved, Home, Classifieds, Menu
--------------------------------------------------------------------- */

.clm-nav-bottom-bar {
	position: fixed;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: var(--clm-z-sticky);
	display: flex;
	background: var(--clm-surface-raised);
	border-top: 1px solid var(--clm-border);
	box-shadow: 0 -2px 12px rgba(40, 37, 29, 0.08);
	padding-bottom: env(safe-area-inset-bottom, 0);
}

.clm-nav-bottom-bar__item {
	flex: 1 1 20%;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 2px;
	min-height: 56px;
	color: var(--clm-text-muted);
	text-decoration: none;
	font-size: 11px;
	font-weight: 600;
}

.clm-nav-bottom-bar__item svg,
.clm-nav-bottom-bar__item .clm-icon {
	width: 22px;
	height: 22px;
}

.clm-nav-bottom-bar__item.is-active {
	color: var(--clm-primary);
}

.clm-nav-bottom-bar__item--home {
	position: relative;
	top: -6px;
}

.clm-nav-bottom-bar__item--home .clm-icon-wrap {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	background: var(--clm-primary);
	color: #fff;
}

@media (min-width: 1024px) {
	.clm-nav-bottom-bar {
		display: none;
	}
}

/* Body padding so bottom bar never covers page content or primary CTAs. */
body.clm-has-bottom-nav {
	padding-bottom: 56px;
}

@media (min-width: 1024px) {
	body.clm-has-bottom-nav {
		padding-bottom: 0;
	}
}