/* ============================================================
   FRANKFURTER WINTERDIENST — HEADER (Double-Decker)
   css/header.css
   Top bar (persistent) + Smart-sticky main nav with Megamenu
   ============================================================ */

/* ---- TOP BAR (Deck 1 — always fixed) ---------------------- */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1010;
  background: var(--clr-brand-dark);
  height: var(--nav-height-top);
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* Status indicator */
.status-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.75);
  font-weight: var(--fw-medium);
  cursor: pointer;
  position: relative;
}
.status-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22C55E;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.25);
  flex-shrink: 0;
}
.status-badge .dot.closed { background: #EF4444; box-shadow: 0 0 0 3px rgba(239,68,68,0.25); }

/* Hours tooltip */
.hours-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--clr-white);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  min-width: 180px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
  transition-delay: 0.18s;
  pointer-events: none;
  z-index: 1020;
}
.status-badge:hover .hours-tooltip {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.hours-tooltip p { color: var(--text-secondary); margin: 0; line-height: 1.6; font-size: 0.78rem; }

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

.top-bar-company {
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.04em;
  white-space: nowrap;
  display: none; /* shown on xl screens only */
}

.top-bar-address {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  display: none; /* shown on lg screens only */
  white-space: nowrap;
}

/* Anfrage button in the top bar — same geometry as .btn-phone, accent fill */
.btn-topbar-anfrage {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: var(--fw-semibold);
  color: var(--clr-slate-900);
  background: var(--clr-accent);
  border: 1px solid var(--clr-accent);
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.9rem;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: var(--transition-fast);
  display: none; /* shown at >=768px */
}
.btn-topbar-anfrage:hover {
  background: var(--clr-accent-dark, #D97706);
  border-color: var(--clr-accent-dark, #D97706);
  color: var(--clr-white);
}
.btn-topbar-anfrage i { font-size: 0.8rem; }

/* Language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-pill);
  padding: 2px;
}
.lang-btn {
  font-size: 0.75rem;
  font-weight: var(--fw-semibold);
  color: rgba(255,255,255,0.55);
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition-fast);
  letter-spacing: 0.05em;
}
.lang-btn.active, .lang-btn:hover {
  background: var(--clr-accent);
  color: var(--clr-slate-900);
}

/* ---- MAIN NAV (Deck 2 — smart sticky) --------------------- */
.main-header {
  position: fixed;
  top: var(--nav-height-top);
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--clr-white);
  height: var(--nav-height-main);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.35s ease;
}

.main-header.hidden {
  transform: translateY(-100%);
}

.main-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-md);
}

/* Logo — real image */
.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo img {
  height: 60px;
  width: auto;
  display: block;
  /* Keeps the logo sharp on retina displays */
  image-rendering: -webkit-optimize-contrast;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0 0.9rem;
  height: var(--nav-height-main);
  font-size: 0.88rem;
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  white-space: nowrap;
  transition: color var(--transition-fast);
  border-bottom: 3px solid transparent;
}
.nav-link:hover,
.nav-link.active {
  color: var(--clr-brand-mid);
  border-bottom-color: var(--clr-accent);
}
.nav-link i { font-size: 0.65rem; color: var(--text-muted); transition: transform 0.18s ease; }
.nav-item:hover .nav-link i { transform: rotate(180deg); }

/* ---- MEGAMENU -------------------------------------------- */
.megamenu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  min-width: 560px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  transition-delay: 0.18s;
  z-index: 999;
}

/* ::before bridge — 14px invisible gap filler */
.megamenu::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 0;
  width: 100%;
  height: 14px;
  background: transparent;
}

.nav-item:hover .megamenu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
  transition-delay: 0s;
}

/* Simple dropdown (smaller) */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--clr-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  transition-delay: 0.18s;
  transform: translateY(8px);
  z-index: 999;
}
.dropdown::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 0;
  width: 100%;
  height: 14px;
  background: transparent;
}
.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
  transition-delay: 0s;
}

/* Megamenu layout */
.megamenu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.megamenu-col-label {
  font-size: 0.7rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.megamenu-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}
.megamenu-link i {
  font-size: 0.75rem;
  color: var(--clr-accent);
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}
.megamenu-link:hover {
  background: var(--clr-slate-50);
  color: var(--clr-brand-dark);
}

/* Dropdown links */
.dropdown-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}
.dropdown-link i { font-size: 0.75rem; color: var(--clr-accent); width: 14px; flex-shrink: 0; }
.dropdown-link:hover { background: var(--clr-slate-50); color: var(--clr-brand-dark); }

/* Nav CTA */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* ---- MOBILE TOGGLE ---------------------------------------- */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  background: none;
  border: none;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-brand-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-total);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--nav-total));
  background: var(--clr-white);
  z-index: 990;
  overflow-y: auto;
  padding: var(--space-md);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav-section { margin-bottom: var(--space-md); }
.mobile-nav-label {
  font-size: 0.7rem;
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0.5rem;
}
.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0.5rem;
  font-size: 0.95rem;
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-fast);
}
.mobile-nav-link i { color: var(--clr-accent); width: 16px; }
.mobile-nav-link:hover { color: var(--clr-brand-mid); padding-left: 1rem; }

/* Page offset for double-decker header */
.page-content-offset {
  padding-top: var(--nav-total);
}

/* ---- RESPONSIVE ------------------------------------------ */
@media (min-width: 768px) {
  .btn-topbar-anfrage { display: inline-flex; }
}

@media (min-width: 1024px) {
  .top-bar-address { display: block; }
}

@media (min-width: 1280px) {
  .top-bar-company { display: block; }
}

@media (max-width: 1023px) {
  .main-nav { display: none; }
  .nav-hamburger { display: flex; }
  .mobile-nav { display: block; }
}