/* ==========================================================================
   NEXTELLO — Navigation Architecture (Desktop Mega-Menu & Mobile Drawer)
   High-End Glassmorphism, 3-Level Hierarchy & Responsive Touch Support
   ========================================================================== */

:root {
  --nav-bg: rgba(11, 17, 30, 0.85);
  --nav-border: rgba(255, 255, 255, 0.08);
  --mega-bg: #0E1626;
  --mega-panel-bg: #141F33;
  --gold-accent: #DFC58A;
  --gold-dim: #B89C5A;
  --blue-accent: #1E88E5;
}

/* --------------------------------------------------------------------------
   Desktop Navigation & Mega-Menu Layer
   -------------------------------------------------------------------------- */
.site-nav-container {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.portal-nav-desktop {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 992px) {
  .portal-nav-desktop {
    display: flex;
  }
}

.nav-link-item {
  position: relative;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans, sans-serif);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #E2E8F0;
  text-transform: uppercase;
  transition: color 0.2s ease;
  cursor: pointer;
  border-radius: 8px;
}

.nav-link-item:hover,
.nav-link-item.active {
  color: var(--gold-accent);
  background: rgba(223, 197, 138, 0.08);
}

/* Mega Menu Dropdown Wrapper */
.mega-dropdown-wrapper {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 980px;
  max-width: 94vw;
  background: var(--mega-bg);
  border: 1px solid var(--nav-border);
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(223, 197, 138, 0.1);
  backdrop-filter: blur(20px);
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1), transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
  pointer-events: none;
}

.nav-item-container:hover .mega-dropdown-wrapper,
.nav-item-container:focus-within .mega-dropdown-wrapper {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

/* 2-Spalten-Layout im Mega-Menu */
.mega-menu-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.5rem;
  min-height: 380px;
}

/* Linke Spalte: Ebene 2 Unterkategorien */
.mega-lvl2-column {
  border-right: 1px solid var(--nav-border);
  padding-right: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.mega-column-heading {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold-dim);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.mega-lvl2-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 0.875rem;
  border-radius: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #CBD5E1;
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.mega-lvl2-btn:hover,
.mega-lvl2-btn.active {
  color: #FFFFFF;
  background: var(--mega-panel-bg);
  border-color: rgba(223, 197, 138, 0.2);
}

.mega-lvl2-btn .arrow-indicator {
  opacity: 0.4;
  transition: transform 0.15s, opacity 0.15s, color 0.15s;
}

.mega-lvl2-btn:hover .arrow-indicator,
.mega-lvl2-btn.active .arrow-indicator {
  opacity: 1;
  transform: translateX(3px);
  color: var(--gold-accent);
}

/* Rechte Spalte: Ebene 3 Kacheln & Kaufberatungen */
.mega-content-column {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mega-tab-panel {
  display: none;
  flex-direction: column;
  gap: 1.25rem;
  animation: fadeInPanel 0.2s ease;
}

.mega-tab-panel.active {
  display: flex;
}

@keyframes fadeInPanel {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Ebene 3 Kacheln Grid */
.lvl3-tiles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.625rem;
}

.lvl3-tile-card {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--nav-border);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #E2E8F0;
  transition: all 0.15s ease;
}

.lvl3-tile-card:hover {
  background: var(--mega-panel-bg);
  border-color: var(--gold-accent);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.lvl3-tile-icon {
  width: 18px;
  height: 18px;
  object-fit: contain;
  flex-shrink: 0;
}

/* Kaufberatungs-Karten Grid (4 Spalten) */
.mega-articles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.mega-article-card {
  display: flex;
  flex-direction: column;
  background: #111A2E;
  border: 1px solid var(--nav-border);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.2s ease;
}

.mega-article-card:hover {
  transform: translateY(-3px);
  border-color: rgba(223, 197, 138, 0.4);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.mega-article-media {
  position: relative;
  width: 100%;
  height: 110px;
  background: #0A0F1C;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.mega-article-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
  transition: transform 0.3s ease;
}

.mega-article-card:hover .mega-article-media img {
  transform: scale(1.05);
}

.mega-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background: var(--blue-accent);
  color: #FFFFFF;
  font-size: 0.5625rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
}

.mega-article-meta {
  padding: 0.625rem 0.75rem;
}

.mega-article-title {
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.35;
  color: #F1F5F9;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Mobile Drawer & 3-Level Accordion (max-width: 991px)
   -------------------------------------------------------------------------- */
.mobile-menu-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--nav-border);
  color: #FFFFFF;
  cursor: pointer;
  transition: background 0.2s ease;
}

@media (min-width: 992px) {
  .mobile-menu-trigger {
    display: none;
  }
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 15, 0.8);
  backdrop-filter: blur(8px);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.drawer-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 340px;
  max-width: 88vw;
  background: #0B111E;
  border-right: 1px solid var(--nav-border);
  box-shadow: 10px 0 30px rgba(0, 0, 0, 0.6);
  z-index: 9999;
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
}

.mobile-nav-drawer.active {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--nav-border);
  background: #080D17;
}

.drawer-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-display, serif);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold-accent);
}

.drawer-close-btn {
  color: #94A3B8;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
}

.drawer-close-btn:hover {
  color: #FFFFFF;
}

.drawer-body {
  padding: 1rem 0;
  display: flex;
  flex-direction: column;
}

/* Accordion Level 1 */
.drawer-acc-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.drawer-acc-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: #E2E8F0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.drawer-acc-trigger .acc-icon {
  font-size: 1.25rem;
  color: var(--gold-accent);
  transition: transform 0.25s ease;
}

.drawer-acc-item.expanded .drawer-acc-trigger .acc-icon {
  transform: rotate(45deg);
  color: #94A3B8;
}

.drawer-acc-content {
  display: none;
  background: #111A2E;
  padding: 0.875rem 1.5rem 1.25rem;
}

.drawer-acc-item.expanded .drawer-acc-content {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

/* Level 2 Pills inside Drawer */
.drawer-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.drawer-pill-btn {
  padding: 0.375rem 0.75rem;
  border-radius: 20px;
  background: #1A253F;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #CBD5E1;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

.drawer-pill-btn.active {
  background: var(--blue-accent);
  border-color: var(--blue-accent);
  color: #FFFFFF;
}

/* Drawer Sub-Panel (Level 3 Topics & Articles) */
.drawer-sub-panel {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.drawer-sub-panel.active {
  display: flex;
}

/* ==========================================================================
   Instant Search Layer (Studio 3.0 Glassmorphism & High-Contrast)
   ========================================================================== */
.search-results-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 480px;
  max-width: 92vw;
  background: rgba(14, 22, 38, 0.96);
  border: 1px solid rgba(223, 197, 138, 0.3);
  border-radius: 16px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.75), 0 0 0 1px rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(24px);
  z-index: 2500;
  padding: 12px;
  max-height: 480px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-accent) rgba(255, 255, 255, 0.05);
}

.search-results-dropdown::-webkit-scrollbar {
  width: 6px;
}
.search-results-dropdown::-webkit-scrollbar-thumb {
  background: var(--gold-accent);
  border-radius: 4px;
}

.search-group {
  margin-bottom: 14px;
}

.search-group:last-child {
  margin-bottom: 0;
}

.search-group-title {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--gold-accent);
  text-transform: uppercase;
  padding: 4px 8px 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.search-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 10px;
  color: #F1F5F9;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: all 0.18s ease;
  margin-bottom: 6px;
}

.search-item:hover,
.search-item.selected {
  background: rgba(223, 197, 138, 0.12);
  border-color: rgba(223, 197, 138, 0.35);
  color: #FFFFFF;
  transform: translateX(4px);
}

.search-item-thumb {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #FFFFFF;
  padding: 4px;
  object-fit: contain;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.search-item-icon-wrap {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(223, 197, 138, 0.12);
  border: 1px solid rgba(223, 197, 138, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 7px;
}

.search-item-icon-wrap img,
.search-item-icon-wrap svg {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.search-item-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.search-item-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.search-item-meta {
  font-size: 0.6875rem;
  color: #94A3B8;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}

.search-item-badge {
  font-size: 0.625rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(30, 136, 229, 0.2);
  color: #90CAF9;
  text-transform: uppercase;
}

.search-no-results {
  padding: 1.5rem 1rem;
  text-align: center;
  color: #94A3B8;
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* ==========================================================================
   Responsive Adjustments (Mobile Header & Overlay)
   ========================================================================== */
@media (max-width: 991px) {
  .site-header {
    height: 68px;
  }
  .nav-inner {
    padding: 0.5rem 1.25rem !important;
  }
}

@media (max-width: 640px) {
  .site-header {
    height: 62px;
  }
  .nav-inner {
    padding: 0.4rem 0.875rem !important;
  }
  .search-results-dropdown {
    position: fixed;
    top: 64px;
    left: 10px;
    right: 10px;
    width: auto;
    max-width: none;
    max-height: 70vh;
  }
}