/*
 * Header/Navigation-Chrome: sticky Header, Logo, Hauptnavigation, Burger-Menü.
 * Wird auf jeder Seite geladen (siehe CLAUDE.md Abschnitt 12), da Header/Footer
 * überall gleich funktionieren müssen. Mega-Menü-Inhalte selbst stehen in
 * mega-menu.css. Phase A: Navigation ist komplett hartcodiert in header.php.
 */
header.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(248, 246, 238, .9);
	backdrop-filter: blur(8px);
	border-bottom: 1px solid transparent;
	transition: box-shadow .25s ease, border-color .25s ease;
}

header.site-header.scrolled {
	box-shadow: var(--shadow-sm);
	border-color: rgba(66, 35, 19, .08);
}

.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 16px 32px;
	max-width: var(--maxw);
	margin: 0 auto;
	gap: 24px;
}

.logo {
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 700;
	font-size: 19px;
	color: var(--erdbraun);
	flex-shrink: 0;
}

.logo svg,
.logo img {
	width: 34px;
	height: 34px;
}

nav.main-nav {
	display: flex;
	align-items: center;
	gap: 4px;
	flex: 1;
	justify-content: center;
}

nav.main-nav > ul {
	display: flex;
	gap: 2px;
	position: relative;
}

nav.main-nav > ul > li {
	position: relative;
}

nav.main-nav > ul > li > a,
nav.main-nav > ul > li > button.nav-toggle {
	display: flex;
	align-items: center;
	gap: 5px;
	padding: 10px 16px;
	font-size: 15px;
	font-weight: 700;
	color: var(--erdbraun);
	background: none;
	border: none;
	font-family: var(--font);
	cursor: pointer;
	border-radius: 999px;
	transition: background .2s ease, color .2s ease;
}

nav.main-nav > ul > li > a:hover,
nav.main-nav > ul > li > button.nav-toggle:hover,
nav.main-nav > ul > li.open > button.nav-toggle {
	background: var(--tint-green);
	color: var(--waldgruen-dark);
}

.caret {
	width: 9px;
	height: 9px;
	border-right: 2px solid currentColor;
	border-bottom: 2px solid currentColor;
	transform: rotate(45deg);
	transition: transform .2s ease;
	margin-top: -3px;
}

li.open .caret {
	transform: rotate(225deg);
	margin-top: 3px;
}

.header-actions {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-shrink: 0;
}

.burger {
	display: none;
	background: none;
	border: none;
	cursor: pointer;
	padding: 6px;
}

.burger span {
	display: block;
	width: 24px;
	height: 2.5px;
	background: var(--erdbraun);
	margin: 5px 0;
	border-radius: 2px;
}

/* Breakpoint 880px – Wechsel auf mobile Navigation, siehe CLAUDE.md Abschnitt 11.3 */
@media (max-width: 880px) {
	nav.main-nav {
		display: none;
	}

	.burger {
		display: block;
	}

	.header-inner {
		padding: 14px 20px;
	}

	body.nav-open nav.main-nav {
		display: block;
		position: fixed;
		inset: 0;
		top: 66px;
		background: var(--cream);
		padding: 24px 20px;
		overflow-y: auto;
		z-index: 99;
	}

	body.nav-open nav.main-nav > ul {
		flex-direction: column;
		align-items: stretch;
		gap: 4px;
	}

	body.nav-open nav.main-nav > ul > li > a,
	body.nav-open nav.main-nav > ul > li > button.nav-toggle {
		width: 100%;
		justify-content: space-between;
		font-size: 17px;
		padding: 14px 8px;
	}
}