/*
 * DACHDECKER STEFAN — Header CSS
 * Double-decker: persistent top-bar + smart-sticky nav with megamenu.
 */

/* ════════════════════════════════════════
   TOP BAR — always fixed at top
   ════════════════════════════════════════ */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-top-h);
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.80);
  font-size: 0.82rem;
  font-weight: 500;
}
.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}

/* Status indicator */
.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 6px rgba(74, 222, 128, 0.7);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.85); }
}

.top-bar__actions {
  display: flex;
  align-items: center;
  gap: 20px;
}
.top-bar__address {
  color: rgba(255,255,255,0.55);
  display: flex;
  align-items: center;
  gap: 6px;
}
.top-bar__phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 6px 14px;
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-pill);
  transition: var(--transition-fast);
}
.top-bar__phone:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

.top-bar__btn {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 6px 14px;
  background: var(--color-accent);
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-pill);
  transition: var(--transition-fast);
  text-decoration: none;
}
.top-bar__btn:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

/* ════════════════════════════════════════
   STICKY NAVIGATION — smart hide/show
   ════════════════════════════════════════ */
.site-header {
  position: fixed;
  top: var(--header-top-h);   /* sits directly below top bar */
  left: 0;
  right: 0;
  z-index: 999;
  height: var(--header-nav-h);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-header);
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
              box-shadow 0.3s ease;
}
.site-header.hidden {
  transform: translateY(calc(-1 * var(--header-nav-h)));
  box-shadow: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

/* ── Logo ── */
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}
.site-logo__icon {
  height: 52px;   /* enlarged for prominent, crystal-clear readability */
  width: auto;
  max-width: 280px;
  display: block;
}
.site-logo__text {
  display: none; /* logo image already contains the company name */
}

/* ── Main Navigation ── */
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.main-nav__item {
  position: relative;
}
/* Invisible bridge that fills the gap between the nav link and the megamenu.
   Without this the cursor briefly leaves the hover target and the menu closes. */
.main-nav__item::before {
  content: '';
  position: absolute;
  top: 100%;
  left: -24px;
  right: -24px;
  height: 14px; /* must be >= the gap defined on .megamenu (top: calc(100% + 12px)) */
  z-index: 199;
}
.main-nav__link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  transition: var(--transition-fast);
  white-space: nowrap;
}
.main-nav__link:hover { color: var(--color-accent); background: var(--color-accent-light); }
.main-nav__link .chevron {
  font-size: 0.65rem;
  transition: transform 0.2s ease;
}
.main-nav__item:hover .chevron { transform: rotate(180deg); }

/* ── Megamenu Dropdown ── */
.megamenu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(44, 62, 80, 0.18), 0 0 0 1px var(--color-border);
  padding: 24px;
  min-width: 640px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  /* Close delay: wait 180ms before starting to hide so cursor has time
     to travel from the trigger across the gap into the megamenu panel. */
  transition: opacity 0.22s ease 0.18s, transform 0.22s ease 0.18s, visibility 0.22s 0.18s;
  z-index: 200;
}
.main-nav__item:hover .megamenu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
  /* Remove delay when opening so it feels instant */
  transition-delay: 0s;
}

/* Megamenu — Services (3-column, grouped with child links) */
.megamenu--services {
  min-width: 960px;
}
.megamenu--services .megamenu__grid {
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px 28px;         /* row-gap between groups, column-gap between columns */
}
.megamenu__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}
.megamenu__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  color: var(--color-text);
}
.megamenu__item:hover { background: var(--color-bg-alt); color: var(--color-accent); }
.megamenu__item-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 0.9rem;
  flex-shrink: 0;
}
.megamenu__item-text strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.2;
}
.megamenu__item-text span {
  font-size: 0.77rem;
  color: var(--color-text-muted);
}

/* ── Grouped megamenu: parent heading + child list ── */
.megamenu__group {
  display: flex;
  flex-direction: column;
  overflow: visible;        /* NEVER add a scrollbar */
}
.megamenu__parent {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--color-primary);
  transition: var(--transition-fast);
}
.megamenu__parent:hover { background: var(--color-bg-alt); color: var(--color-accent); }
.megamenu__parent:hover .megamenu__item-icon { background: var(--color-accent); color: #fff; }
.megamenu__parent strong {
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.2;
  color: inherit;
}
.megamenu__children {
  list-style: none;
  margin: 2px 0 4px 56px;  /* indent to align with text, past icon (36px) + gap (10px) + padding (10px) */
  padding: 0;
  overflow: visible;        /* no scrollbar, ever */
}
.megamenu__children li a {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 3px 0;
  line-height: 1.4;
  transition: color 0.15s ease;
}
.megamenu__children li a::before {
  content: '→ ';
  opacity: 0.4;
  font-size: 0.72rem;
}
.megamenu__children li a:hover { color: var(--color-accent); }
.megamenu__children li a:hover::before { opacity: 1; }

/* Megamenu — Regions (3 columns) */
.megamenu--regions { min-width: 480px; }
.megamenu__grid--3col { grid-template-columns: 1fr 1fr 1fr; }
.megamenu__region-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text);
  transition: var(--transition-fast);
}
.megamenu__region-item:hover { background: var(--color-bg-alt); color: var(--color-accent); }
.megamenu__region-item i { font-size: 0.75rem; color: var(--color-accent); }

/* Megamenu header */
.megamenu__header {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0 14px 12px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 12px;
}

/* ── Header CTA Button ── */
.header-cta {
  flex-shrink: 0;
}
.header-cta .btn-accent {
  padding: 11px 22px;
  font-size: 0.88rem;
}

/* ── Mobile Menu Toggle ── */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

/* ════════════════════════════════════════
   MOBILE RESPONSIVE
   ════════════════════════════════════════ */
@media (max-width: 1024px) {
  .menu-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-nav-h);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    gap: 0;
    justify-content: flex-start;
    align-items: stretch !important; /* stretch items full width instead of centering */
    padding: 12px 0 24px;
    border-bottom: 2px solid var(--color-border);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
  }
  .main-nav.open { display: flex; }
  
  .main-nav__link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px !important;
    border-radius: 0;
    font-size: 1rem !important;
    width: 100% !important;
    box-sizing: border-box;
    border-bottom: 1px solid var(--color-border-light, #f1f5f9);
  }
  
  .main-nav__item.open .chevron {
    transform: rotate(180deg) !important;
  }
  
  /* Reset and force full-width on mobile megamenus to prevent overflow */
  .megamenu,
  .megamenu--services,
  .megamenu--regions {
    position: static !important;
    transform: none !important;
    min-width: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    padding: 12px 24px !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    display: none;
    border: none !important;
    box-sizing: border-box !important;
  }
  .main-nav__item.open .megamenu {
    display: block !important;
  }
  
  /* Force single-column grid on mobile services menu */
  .megamenu__grid,
  .megamenu--services .megamenu__grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
    width: 100% !important;
  }
  
  /* Region menu can render in 2 columns on mobile */
  .megamenu__grid--3col {
    grid-template-columns: 1fr 1fr !important;
    gap: 12px !important;
  }

  /* Mobile accordion: child links hidden by default, shown when group is .open */
  .megamenu__children {
    display: none;
    margin-left: 12px;
    padding-left: 12px;
    border-left: 2px solid var(--color-border);
    margin-bottom: 6px;
  }
  .megamenu__group.open .megamenu__children { display: block; }

  /* Toggle indicator on parent link */
  .megamenu__parent {
    width: 100%;
    justify-content: flex-start;
  }
  .megamenu__parent::after {
    content: '+';
    margin-left: auto;
    font-size: 1.1rem;
    font-weight: 400;
    opacity: 0.45;
    flex-shrink: 0;
  }
  .megamenu__group.open .megamenu__parent::after { content: '−'; opacity: 0.8; }

  .top-bar__address { display: none; }
}
@media (max-width: 600px) {
  .top-bar__inner { justify-content: space-between; }
  .status-indicator .status-label { display: none; }
}