/* ============================================================
   header.css — Double-Decker Header, Megamenu, Mobile Nav
   Martin Gerber Entrümpelung & Service
   ============================================================ */

/* ============================================================
   TOP BAR (Always fixed at very top — never hides)
   ============================================================ */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--top-bar-height);
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  font-size: var(--font-size-sm);
}

.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Status indicator */
.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.85);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  display: inline-block;
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

.status-dot--closed { background: #9CA3AF; animation: none; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* Top bar right actions */
.top-bar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.top-bar__address {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,0.75);
  font-size: var(--font-size-sm);
}

.top-bar__phone {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-accent-light);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.top-bar__phone:hover { color: var(--color-white); }

.top-bar__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.top-bar__cta:hover { background: var(--color-accent-dark); color: var(--color-white); }

/* ============================================================
   SITE HEADER — Smart Sticky (hides on scroll-down)
   ============================================================ */
.site-header {
  position: fixed;
  top: var(--top-bar-height);
  left: 0;
  right: 0;
  z-index: 999;
  height: var(--header-height);
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s ease, box-shadow var(--transition);
}

/* Smart sticky: hide on scroll-down */
.site-header.header--hidden {
  transform: translateY(-100%);
}

/* Elevated when scrolled */
.site-header.header--scrolled {
  box-shadow: var(--shadow-soft);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-6);
}

/* ---- Logo ---- */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo__img {
  height: 44px;
  width: auto;
}

.site-logo__text {
  display: flex;
  flex-direction: column;
}

.site-logo__name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  line-height: 1.2;
}

.site-logo__tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-normal);
}

/* ---- Main Navigation ---- */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  justify-content: center;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}

/* Nav Item */
.main-nav__item {
  position: relative;
}

/* ::before Bridge — keeps hover alive while cursor crosses the gap to megamenu */
.main-nav__item::before {
  content: '';
  position: absolute;
  bottom: -14px;
  left: 0;
  right: 0;
  height: 14px;
  background: transparent;
  z-index: 998;
}

.main-nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast);
  border-bottom: 2px solid transparent;
}

.main-nav__link:hover,
.main-nav__link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.main-nav__link .chevron {
  font-size: 0.7em;
  transition: transform var(--transition-fast);
}

.main-nav__item:hover .chevron {
  transform: rotate(180deg);
}

/* ---- Megamenu ---- */
.megamenu {
  position: absolute;
  top: calc(100% + 14px); /* 14px = ::before bridge height */
  left: 50%;
  transform: translateX(-50%);
  min-width: 680px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
  z-index: 997;

  /* Hidden state — with 180ms close delay so cursor can travel to panel */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(8px);
  transition:
    opacity 0.25s ease var(--transition-delay, 0.18s),
    visibility 0s linear var(--transition-delay, 0.18s),
    transform 0.25s ease var(--transition-delay, 0.18s);
}

/* Open state — instant (no delay) */
.main-nav__item:hover .megamenu {
  --transition-delay: 0s;
  opacity: 1;
  visibility: visible;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.megamenu__header {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.megamenu__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-6);
}

.megamenu__group {}

.megamenu__parent {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-decoration: none;
  margin-bottom: var(--space-3);
  font-size: var(--font-size-base);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.megamenu__parent:hover {
  background: var(--color-bg-muted);
  color: var(--color-accent);
}

.megamenu__item-icon {
  width: 32px;
  height: 32px;
  background: var(--color-bg-muted);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

.megamenu__parent:hover .megamenu__item-icon {
  background: var(--color-accent);
  color: var(--color-white);
}

.megamenu__children {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-border);
}

.megamenu__children a {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.megamenu__children a:hover {
  color: var(--color-primary);
  background: var(--color-bg-muted);
}

/* Regions megamenu (narrower) */
.megamenu--regions {
  min-width: 400px;
}

.megamenu--regions .megamenu__grid {
  grid-template-columns: repeat(2, 1fr);
}

/* ---- Header CTA Button ---- */
.header-cta {
  flex-shrink: 0;
}

/* ---- Mobile Navigation ---- */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-2);
  border: none;
  background: none;
}

.nav-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile overlay */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 990;
  background: rgba(0,0,0,0.5);
}

.mobile-nav-overlay.active { display: block; }

/* Mobile slide-in menu */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(360px, 90vw);
  height: 100vh;
  background: var(--color-bg-alt);
  z-index: 995;
  overflow-y: auto;
  padding: var(--space-8) var(--space-6);
  transition: right 0.35s ease;
  box-shadow: var(--shadow-lg);
}

.mobile-nav.active { right: 0; }

.mobile-nav__close {
  display: flex;
  justify-content: flex-end;
  margin-bottom: var(--space-6);
}

.mobile-nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.mobile-nav__list li a {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
}

.mobile-nav__list li a:hover { color: var(--color-accent); }

.mobile-nav__sub {
  padding-left: var(--space-4);
  list-style: none;
  display: none;
}

.mobile-nav__sub.open { display: block; }

.mobile-nav__sub a {
  font-size: var(--font-size-sm) !important;
  color: var(--color-text-muted) !important;
  padding: var(--space-2) 0 !important;
  border-bottom: none !important;
}

.mobile-nav__cta {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .top-bar__address { display: none; }
}

@media (max-width: 480px) {
  .top-bar__cta { display: none; }
}