/*
 * ZPK Chrome — Topbar, Site-Header, Primary-Nav, Footer.
 * Portiert aus index-final.html.
 */

/* ================= Topbar (sticky Nav 1) ================= */
.zpk-topbar {
	background: var(--zpk-primary);
	color: var(--zpk-text);
	/* Ausnahme zur S/M/L-Skala: Topbar bewusst kleiner. */
	font-size: .8125rem;
	position: sticky;
	top: 0;
	z-index: 110;
}
.zpk-topbar__inner {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 1.5rem;
	padding-block: .55rem;
	flex-wrap: wrap;
	min-height: 42px;
}
.zpk-topbar__org {
	margin: 0;
	/* erbt .8125rem von .zpk-topbar */
	line-height: 1.35;
	color: var(--zpk-text);
	max-width: 70%;
}
.zpk-topbar__list {
	display: flex;
	gap: 1.25rem;
	list-style: none;
	padding: 0;
	margin: 0;
}
.zpk-topbar__list a {
	color: var(--zpk-text);
	text-decoration: none;
	font-weight: 500;
}
.zpk-topbar__list a:hover,
.zpk-topbar__list a:focus-visible { text-decoration: underline; }
.zpk-topbar__list .current-menu-item > a,
.zpk-topbar__list .current-menu-ancestor > a,
.zpk-topbar__list .current_page_item > a,
.zpk-topbar__list .current-menu-parent > a {
	text-decoration: underline;
	text-underline-offset: 3px;
	text-decoration-thickness: 2px;
}

/* ================= Site-Header (sticky Nav 2) ================= */
.zpk-site-header {
	background: rgba(255,255,255,.96);
	position: sticky;
	top: 42px; /* Höhe der Topbar */
	z-index: 100;
	border-bottom: 3px solid var(--zpk-heading);
	backdrop-filter: blur(12px);
}
.zpk-site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 2rem;
	padding-block: 1rem;
}
.zpk-brand {
	display: inline-flex;
	align-items: center;
	flex-shrink: 0;
}
.zpk-brand img {
	width: clamp(140px, 14vw, 220px);
	max-width: 35vw;
	height: auto;
	display: block;
}
.zpk-brand__text {
	font-weight: 700;
	color: var(--zpk-heading);
	font-size: 1.25rem;
}

/* Nav Toggle (nur Mobile sichtbar) — vertikal mittig zum Logo.
   Das Bars-Markup wird per CSS zum X animiert, wenn aria-expanded="true". */
.zpk-nav-toggle {
	display: none;
	align-items: center;
	justify-content: center;
	background: transparent;
	border: 1px solid var(--zpk-border);
	border-radius: var(--zpk-radius-sm);
	width: 44px;
	height: 44px;
	padding: 0;
	line-height: 0;
	color: var(--zpk-heading);
	cursor: pointer;
	align-self: center;
	flex-shrink: 0;
}
.zpk-nav-toggle__bars {
	position: relative;
	display: block;
	width: 20px;
	height: 14px;
}
.zpk-nav-toggle__bar {
	position: absolute;
	left: 0;
	right: 0;
	display: block;
	height: 2px;
	background: currentColor;
	border-radius: 2px;
	transition: transform .28s ease, opacity .2s ease, top .28s ease;
}
.zpk-nav-toggle__bar:nth-child(1) { top: 0; }
.zpk-nav-toggle__bar:nth-child(2) { top: 6px; }
.zpk-nav-toggle__bar:nth-child(3) { top: 12px; }

/* Geöffnet → X */
.zpk-nav-toggle[aria-expanded="true"] .zpk-nav-toggle__bar:nth-child(1) {
	top: 6px;
	transform: rotate(45deg);
}
.zpk-nav-toggle[aria-expanded="true"] .zpk-nav-toggle__bar:nth-child(2) {
	opacity: 0;
	transform: scaleX(0);
}
.zpk-nav-toggle[aria-expanded="true"] .zpk-nav-toggle__bar:nth-child(3) {
	top: 6px;
	transform: rotate(-45deg);
}

@media (prefers-reduced-motion: reduce) {
	.zpk-nav-toggle__bar { transition: none; }
}

/* Default: Mobile-Extra ist ausgeblendet (Topbar-Menü sichtbar separate) */
.zpk-primary-nav__mobile-extra { display: none; }

/* ================= Primary Nav ================= */
.zpk-primary-nav__list {
	display: flex;
	align-items: center;
	gap: .5rem;
	list-style: none;
	padding: 0;
	margin: 0;
}
.zpk-primary-nav__list a {
	color: var(--zpk-heading);
	text-decoration: none;
	font-weight: 500;
	padding: .7rem 1.1rem;
	border-radius: var(--zpk-radius-sm);
	transition: background var(--zpk-transition), color var(--zpk-transition);
	display: inline-block;
	font-size: var(--zpk-fs-m);
}
.zpk-primary-nav__list a:hover,
.zpk-primary-nav__list a:focus-visible,
.zpk-primary-nav__list a[aria-expanded="true"],
.zpk-primary-nav__list .current-menu-item > a,
.zpk-primary-nav__list .current_page_item > a,
.zpk-primary-nav__list .current-menu-ancestor > a,
.zpk-primary-nav__list .current-menu-parent > a {
	background: var(--zpk-lime-tint);
	color: var(--zpk-heading);
}

/* Dropdown — schlanker Chevron, vertikal zentriert */
.zpk-primary-nav__item--has-dropdown { position: relative; }
.zpk-primary-nav__trigger::after {
	content: '';
	display: inline-block;
	width: .45em;
	height: .45em;
	margin-left: .35em;
	border-right: 1.5px solid currentColor;
	border-bottom: 1.5px solid currentColor;
	transform: translateY(-.22em) rotate(45deg);
	transition: transform var(--zpk-transition);
	vertical-align: middle;
}
.zpk-primary-nav__trigger[aria-expanded="true"]::after {
	transform: translateY(-.05em) rotate(225deg);
}
.zpk-primary-nav__dropdown {
	position: absolute;
	top: 100%;
	left: 0;
	width: max-content;
	max-width: min(90vw, 560px);
	background: #fff;
	border: 1px solid var(--zpk-border);
	border-radius: var(--zpk-radius-sm);
	box-shadow: var(--zpk-shadow-md);
	padding: .3rem;
	list-style: none;
	margin: .75rem 0 0;
	display: none;
	z-index: 110;
}
/* Hover-Brücke: unsichtbarer Bereich zwischen Trigger und Dropdown, damit Mouse nicht abreisst */
.zpk-primary-nav__dropdown::before {
	content: '';
	position: absolute;
	top: -.75rem;
	left: 0;
	right: 0;
	height: .75rem;
}
.zpk-primary-nav__item--has-dropdown:hover .zpk-primary-nav__dropdown,
.zpk-primary-nav__item--has-dropdown:focus-within .zpk-primary-nav__dropdown,
.zpk-primary-nav__dropdown.is-open { display: block; }
.zpk-primary-nav__dropdown a {
	display: block;
	padding: .4rem .75rem;
	font-size: var(--zpk-fs-m);
	white-space: nowrap;
	line-height: 1.4;
}
.zpk-primary-nav__dropdown a:hover {
	background: var(--zpk-lime-tint);
}
.zpk-primary-nav__dropdown-empty {
	padding: .75rem .85rem;
	color: var(--zpk-muted);
	font-size: var(--zpk-fs-m);
	font-style: italic;
}

/* CTA Item (Deklaration) — etwas grösser */
.zpk-primary-nav__item--cta .zpk-btn {
	padding: .7rem 1.25rem;
	font-size: var(--zpk-fs-m);
	font-weight: 600;
	letter-spacing: .005em;
}

/* ================= Footer ================= */
.zpk-site-footer {
	background: #f3f3f1;
	color: var(--zpk-text);
	padding-block: clamp(2.5rem, 5vw, 4rem) 1.5rem;
	border-top: 4px solid var(--zpk-primary);
}
.zpk-site-footer__grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 2.5rem;
	padding-bottom: 3rem;
}
.zpk-site-footer__heading {
	font-size: 1.375rem;
	color: var(--zpk-heading);
	margin-top: 0;
	margin-bottom: 1rem;
	font-weight: 700;
}
.zpk-site-footer__contact {
	font-style: normal;
	line-height: 1.6;
}
.zpk-site-footer__contact strong { color: var(--zpk-text); }
.zpk-site-footer__contact a { color: var(--zpk-text); text-decoration: none; font-weight: 600; }
.zpk-site-footer__contact a:hover,
.zpk-site-footer__contact a:focus-visible { color: var(--zpk-secondary); text-decoration: underline; }

.zpk-site-footer__addr {
	font-style: normal;
	line-height: 1.6;
	text-align: right;
}
.zpk-site-footer__addr strong {
	display: block;
	font-size: var(--zpk-fs-m);
	color: var(--zpk-text);
	margin-bottom: .25rem;
	font-weight: 700;
}

.zpk-site-footer__meta {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 1rem;
	flex-wrap: wrap;
	padding-top: 1.5rem;
	margin-top: 1rem;
	font-size: var(--zpk-fs-m);
	color: var(--zpk-muted);
	border-top: 1px solid rgba(0, 0, 0, .06);
}
.zpk-site-footer__meta a { color: var(--zpk-muted); }
.zpk-site-footer__meta a:hover,
.zpk-site-footer__meta a:focus-visible { color: var(--zpk-heading); text-decoration: underline; }

/* Legal-Nav mit Pipe-Trenner */
.zpk-site-footer__legal-list {
	display: flex;
	align-items: center;
	list-style: none;
	padding: 0;
	margin: 0;
	gap: 0;
}
.zpk-site-footer__legal-list li + li::before {
	content: '|';
	margin: 0 .5rem;
	color: var(--zpk-muted);
	opacity: .6;
}
.zpk-site-footer__legal-list a {
	display: inline-block;
	padding: .25rem 0;
}

.zpk-site-footer__social {
	display: flex;
	gap: 1rem;
	margin-top: 1rem;
	font-size: var(--zpk-fs-m);
}
.zpk-site-footer__copy { display: none; }

/* ================= Responsive ================= */
/* Tablet + kleiner Desktop: Hauptnav als Burger-Menü, Topbar BLEIBT aber mit Inhalten sichtbar */
@media (max-width: 1024px) {
	.zpk-nav-toggle { display: inline-flex; }

	.zpk-primary-nav {
		display: none;
		width: 100%;
		order: 3;
	}
	.zpk-primary-nav.is-open { display: block; padding-top: 1rem; }
	.zpk-site-header__inner { flex-wrap: wrap; }

	.zpk-primary-nav__list {
		flex-direction: column;
		align-items: stretch;
		gap: .25rem;
	}
	.zpk-primary-nav__list a { width: 100%; }

	.zpk-primary-nav__dropdown {
		position: static;
		box-shadow: none;
		border: none;
		padding-left: 1rem;
		display: none;
	}
	/* Hover/Focus darf im Burger nichts mehr aufklappen — nur .is-open per Klick.
	   Spezifität wird via doppeltem Klassenselektor auf Desktop-Gleichstand gehoben. */
	.zpk-primary-nav__item--has-dropdown:hover .zpk-primary-nav__dropdown:not(.is-open),
	.zpk-primary-nav__item--has-dropdown:focus-within .zpk-primary-nav__dropdown:not(.is-open) { display: none; }
	.zpk-primary-nav__dropdown.is-open.is-open { display: block; }

	.zpk-site-footer__grid { grid-template-columns: 1fr; }
	.zpk-site-footer__addr { text-align: left; }
	.zpk-site-footer__meta { flex-direction: column; align-items: flex-start; }
}

/* Mobile: Topbar-Inhalte ins Burger-Menü (UNTER der Hauptnav, softer),
   Topbar selbst kollabiert auf Lime-Streifen */
@media (max-width: 768px) {
	.zpk-topbar__inner { display: none; }
	.zpk-topbar { min-height: .5rem; padding: 0; }
	.zpk-site-header { top: .5rem; }

	.zpk-primary-nav__mobile-extra {
		display: flex;
		flex-direction: column;
		list-style: none;
		padding: .75rem 0 0;
		margin: .75rem 0 0;
		border-top: 1px solid var(--zpk-border);
		gap: 0;
	}
	.zpk-primary-nav__mobile-extra li { list-style: none; }
	.zpk-primary-nav__mobile-extra a {
		display: block;
		padding: .5rem 1.1rem;
		color: var(--zpk-muted);
		text-decoration: none;
		font-weight: 400;
		font-size: var(--zpk-fs-m);
		letter-spacing: .01em;
		transition: color var(--zpk-transition), background var(--zpk-transition);
	}
	.zpk-primary-nav__mobile-extra a:hover,
	.zpk-primary-nav__mobile-extra a:focus-visible {
		color: var(--zpk-heading);
		background: transparent;
		text-decoration: underline;
	}
}


@media (max-width: 1149.98px) {
	.zpk-topbar__org { display: none; }
}