/* ============================================================
   TOP MENU - Desktop Navigation with Dropdowns
   Hierarchical navigation following ERA brand guidelines
   ============================================================ */

/* Desktop Navigation Container */
.desktop-nav {
  position: relative;
  z-index: 1000;
}

.desktop-nav .nav-items {
  display: flex;
  flex-direction: row;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.5rem;
  align-items: center;
}

/* Top-level navigation items */
.desktop-nav .nav-item {
  position: relative;
  margin: 0;
}

.desktop-nav .nav-item > .nav-link {
  color: var(--k-0);
  text-decoration: none;
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding: 0.5rem 1rem;
  display: block;
  transition: all 0.2s ease;
  position: relative;
}

/* Dropdown indicator for parent items */
.desktop-nav .nav-item.has-children > .nav-link::after {
  content: "\f282"; /* Bootstrap Icons chevron-down */
  font-family: "bootstrap-icons";
  margin-left: 0.5rem;
  font-size: 0.75rem;
  transition: transform 0.2s ease;
}

.desktop-nav .nav-item.has-children:hover > .nav-link::after {
  transform: rotate(180deg);
}

.desktop-nav .nav-item > .nav-link:hover,
.desktop-nav .nav-item > .nav-link:focus {
  color: var(--era-light-blue);
}

/* Dropdown Menus - All Levels */
.desktop-nav .submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--k-0);
  border: 1px solid var(--k-10);
  border-top: 3px solid var(--era-red);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 220px;
  margin: 0;
  padding: 0.5rem 0;
  list-style: none;
  z-index: 2000;
}

/* Second level dropdown positioning */
.desktop-nav .submenu .submenu {
  top: 0;
  left: 100%;
  border-top: 3px solid var(--era-navy);
  margin-left: 1px;
}

/* Third level dropdown positioning */
.desktop-nav .submenu .submenu .submenu {
  border-top: 3px solid var(--era-orange);
}

/* Show dropdown on hover */
.desktop-nav .nav-item:hover > .submenu,
.desktop-nav .submenu-item:hover > .submenu {
  display: block;
}

/* Submenu Items */
.desktop-nav .submenu-item {
  position: relative;
  margin: 0;
}

.desktop-nav .submenu-item > .submenu-link {
  display: block;
  padding: 0.65rem 1.25rem;
  color: var(--k-90);
  text-decoration: none;
  font-family: var(--font-primary);
  font-weight: 400;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  white-space: nowrap;
}

/* Parent indicator for submenu items with children */
.desktop-nav .submenu-item.has-children > .submenu-link::after {
  content: "\f285"; /* Bootstrap Icons chevron-right */
  font-family: "bootstrap-icons";
  float: right;
  margin-left: 1rem;
  font-size: 0.75rem;
  color: var(--k-70);
}

.desktop-nav .submenu-item > .submenu-link:hover,
.desktop-nav .submenu-item > .submenu-link:focus {
  background: var(--era-light-blue);
  color: var(--k-0);
  padding-left: 1.5rem;
}

.desktop-nav .submenu-item.has-children > .submenu-link:hover::after {
  color: var(--k-0);
}

/* Level-specific styling for visual hierarchy */
.desktop-nav .submenu .submenu-item > .submenu-link {
  font-size: 0.875rem;
  padding-left: 1.5rem;
}

.desktop-nav .submenu .submenu .submenu-item > .submenu-link {
  font-size: 0.85rem;
  padding-left: 1.75rem;
}

/* About Link - Same level styling */
.desktop-nav .nav-item.about-item > .nav-link {
  color: var(--k-0);
}

/* Active/Current State */
.desktop-nav .nav-item.active > .nav-link,
.desktop-nav .submenu-item.active > .submenu-link {
  color: var(--era-red);
  font-weight: 600;
}

.desktop-nav .submenu-item.active > .submenu-link {
  background: var(--k-10);
}

/* Hover State Enhancements */
.desktop-nav .nav-item:hover > .nav-link {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

/* Responsive - Hide on mobile */
@media (max-width: 991.98px) {
  .desktop-nav {
    display: none !important;
  }
}

/* Accessibility improvements */
.desktop-nav .nav-link:focus,
.desktop-nav .submenu-link:focus {
  outline: 2px solid var(--era-light-blue);
  outline-offset: 2px;
}

/* Smooth dropdown animations */
@media (prefers-reduced-motion: no-preference) {
  .desktop-nav .submenu {
    animation: fadeInDown 0.2s ease-out;
  }

  @keyframes fadeInDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}