/* =============================================================================
   BlickSpektrum – Header & Navigation
   ========================================================================== */

.site-header {
	position: sticky;
	top: 0;
	z-index: var(--z-header);
	background-color: var(--color-bg);
	border-bottom: var(--border-width) solid var(--color-border);
}

/* Schmale, zurückhaltende Utility-Leiste */
.utility-bar {
	border-bottom: var(--border-width) solid var(--color-border);
	background-color: var(--color-surface-alt);
}

.utility-bar__inner {
	display: flex;
	justify-content: flex-end;
	gap: var(--space-md);
	padding-block: 0.4rem;
	font-size: var(--text-xs);
}

.utility-bar__inner a {
	color: var(--color-text-secondary);
	text-decoration: none;
}

.utility-bar__inner a:hover {
	color: var(--color-accent);
}

/* Hauptkopf: Logo, Suche, Newsletter-CTA, Menü-Button */
.main-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-md);
	padding-block: 1.4rem;
	transition: padding-block var(--transition-base);
}

.site-header.is-scrolled .main-header {
	padding-block: 0.75rem;
}

.site-branding {
	display: flex;
	align-items: center;
}

.site-logo {
	display: flex;
	align-items: center;
}

.site-logo img {
	height: 40px;
	width: auto;
	transition: height var(--transition-base);
}

.site-header.is-scrolled .site-logo img {
	height: 32px;
}

/* Typografisches Wordmark als Fallback, falls kein Bild-Logo hinterlegt ist */
.site-wordmark {
	font-family: var(--font-editorial);
	font-weight: 700;
	font-size: 2.35rem;
	letter-spacing: -0.02em;
	color: var(--color-text);
	text-decoration: none;
	line-height: 1;
	white-space: nowrap;
	transition: font-size var(--transition-base);
}

.site-header.is-scrolled .site-wordmark {
	font-size: 1.9rem;
}

.site-wordmark span {
	color: var(--color-accent);
}

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

.header-icon-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 42px;
	height: 42px;
	border-radius: var(--radius-sm);
	color: var(--color-text);
}

.header-icon-button:hover {
	background-color: var(--color-surface-alt);
}

.header-icon-button .icon {
	width: 20px;
	height: 20px;
}

.header-cta {
	font-size: var(--text-sm);
	font-weight: 600;
	color: var(--color-text);
	text-decoration: none;
	border: var(--border-width) solid var(--color-border-strong);
	padding: 0.5rem 0.9rem;
	border-radius: var(--radius-sm);
	white-space: nowrap;
}

.header-cta:hover {
	background-color: var(--color-text);
	color: #fff;
	border-color: var(--color-text);
}

.menu-toggle {
	display: none;
}

/* Primäre Navigation (Desktop) */
.primary-nav {
	border-top: var(--border-width) solid var(--color-border);
}

.primary-nav__list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
}

.primary-nav__list > li {
	position: relative;
}

.primary-nav__list > li > a,
.primary-nav__list > li > button.nav-toggle {
	display: flex;
	align-items: center;
	gap: 0.3em;
	padding: 1rem 0.85rem;
	font-family: var(--font-sans);
	font-size: 1rem;
	font-weight: 600;
	letter-spacing: 0.01em;
	color: var(--color-text);
	text-decoration: none;
	border-bottom: 2px solid transparent;
}

.primary-nav__list > li > a:hover,
.primary-nav__list > li.current-menu-item > a,
.primary-nav__list > li.current-menu-ancestor > a {
	color: var(--color-accent);
	border-bottom-color: var(--color-accent);
}

/* Dropdown: kein Lücken-Problem, da das Submenü lückenlos am Elternitem anliegt */
.primary-nav .sub-menu {
	list-style: none;
	margin: 0;
	padding: 0.4rem 0;
	position: absolute;
	top: 100%;
	left: 0;
	min-width: 220px;
	background-color: var(--color-surface);
	border: var(--border-width) solid var(--color-border);
	box-shadow: var(--shadow-md);
	z-index: var(--z-dropdown);
	opacity: 0;
	visibility: hidden;
	transform: translateY(4px);
	transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.primary-nav .menu-item-has-children:hover > .sub-menu,
.primary-nav .menu-item-has-children.is-open > .sub-menu,
.primary-nav .menu-item-has-children:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.primary-nav .sub-menu li a {
	display: block;
	padding: 0.55rem 1rem;
	font-size: var(--text-sm);
	color: var(--color-text);
	text-decoration: none;
}

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

.nav-toggle-icon {
	width: 14px;
	height: 14px;
}

/* Suchfeld, das sich unter dem Header ausklappt */
.header-search {
	border-top: var(--border-width) solid var(--color-border);
	background-color: var(--color-surface-alt);
}

.header-search[hidden] {
	display: none;
}

.header-search__form {
	display: flex;
	gap: var(--space-2xs);
	padding-block: var(--space-sm);
}

.header-search__input {
	flex: 1;
	min-width: 0;
	padding: 0.6rem 0.9rem;
	border: var(--border-width) solid var(--color-border-strong);
	border-radius: var(--radius-sm);
	background-color: var(--color-surface);
	font-size: var(--text-base);
}

.header-search__submit {
	padding: 0.6rem 1.1rem;
	background-color: var(--color-text);
	color: #fff;
	border-radius: var(--radius-sm);
	font-weight: 600;
	font-size: var(--text-sm);
}

.header-search__submit:hover {
	background-color: var(--color-accent);
}

/* -----------------------------------------------------------------------
   Mobile
   -------------------------------------------------------------------- */

@media (max-width: 900px) {
	.utility-bar { display: none; }

	.menu-toggle {
		display: inline-flex;
	}

	.primary-nav {
		position: fixed;
		inset: 0 0 0 auto;
		width: min(340px, 86vw);
		height: 100vh;
		background-color: var(--color-bg);
		border-top: 0;
		border-left: var(--border-width) solid var(--color-border);
		box-shadow: var(--shadow-md);
		transform: translateX(100%);
		transition: transform var(--transition-base);
		overflow-y: auto;
		z-index: var(--z-mobile-nav);
		padding: var(--space-md);
	}

	.site-header.nav-open .primary-nav {
		transform: translateX(0);
	}

	.primary-nav__list {
		flex-direction: column;
		gap: 0;
	}

	.primary-nav__list > li {
		border-bottom: var(--border-width) solid var(--color-border);
	}

	.primary-nav__list > li > a,
	.primary-nav__list > li > button.nav-toggle {
		padding: 1rem 0.25rem;
		width: 100%;
		border-bottom: 0;
	}

	.primary-nav .sub-menu {
		position: static;
		opacity: 1;
		visibility: visible;
		transform: none;
		box-shadow: none;
		border: 0;
		border-top: var(--border-width) dashed var(--color-border);
		display: none;
		background: none;
	}

	.primary-nav .menu-item-has-children.is-open > .sub-menu {
		display: block;
	}

	.nav-backdrop {
		display: none;
		position: fixed;
		inset: 0;
		background-color: rgba(32, 29, 25, 0.45);
		z-index: 150;
	}

	.site-header.nav-open .nav-backdrop {
		display: block;
	}

	.header-cta {
		display: none;
	}
}

/* Wordmark ist bewusst als ein zusammenhängendes Wort gesetzt (kein
   Leerzeichen zwischen „Blick" und „Spektrum") und damit nicht umbruchfähig.
   Bei sehr schmalen Breiten (ca. ≤ 430px) passt „BlickSpektrum" bei 2.35rem
   nicht mehr neben Such- und Menü-Icon in die Kopfzeile und drängt die
   gesamte Seite über die Viewport-Breite hinaus. Nur hier verkleinert –
   alles ab 431px bleibt unverändert. */
@media (max-width: 430px) {
	.site-wordmark {
		font-size: 1.45rem;
	}
}