/* ==========================================
   LOCATRIA GLOBAL DESIGN SYSTEM - HEADER & NAV
   ========================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border-subtle);
  height: var(--header-height);
  transition: box-shadow var(--transition-base), background-color var(--transition-base);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-4);
}

/* Logo & Brand Identity */
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text-main);
  flex-shrink: 0;
  max-height: 54px !important;
  overflow: visible;
}

.brand-link:hover {
  text-decoration: none;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-900) 100%);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--text-lg);
  box-shadow: 0 2px 4px rgba(2, 132, 199, 0.2);
}

.brand-text-wrapper {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text-main);
  line-height: 1.1;
}

.brand-badge {
  font-size: 0.6875rem;
  font-weight: var(--weight-medium);
  color: var(--color-primary-700);
  background-color: var(--color-primary-50);
  border: 1px solid var(--color-primary-100);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  margin-top: 2px;
  align-self: flex-start;
}

/* Primary Navigation (Desktop - Consolidated 5 Items) */
.primary-nav {
  display: none;
}

@media (min-width: 1024px) {
  .primary-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-shrink: 0;
  }
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-body);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-primary-600);
  background-color: var(--color-bg-subtle);
  text-decoration: none;
}

.nav-link.is-active {
  color: var(--color-primary-600);
  font-weight: var(--weight-semibold);
  background-color: var(--color-primary-50);
}

/* Dropdown Menu Styling */
.nav-item-dropdown {
  position: relative;
}

.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-chevron {
  width: 16px;
  height: 16px;
  stroke-width: 1.5px;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.nav-item-dropdown:hover .dropdown-chevron {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 220px;
  background-color: var(--color-bg-body);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  margin-top: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  list-style: none;
  z-index: var(--z-sticky);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-body);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--color-bg-subtle);
  color: var(--color-primary-600);
  text-decoration: none;
}

.dropdown-item-desc {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: var(--weight-regular);
}

/* Header Actions (Search Bar & CTA - Fixed 44px Height) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1 1 auto;
  justify-content: flex-end;
  max-width: 680px;
}

/* Global Search Trigger Bar (44px Height, 12px Radius, Left Icon) */
.search-trigger-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background-color: #F8FAFC;
  border: 1px solid #E5E7EB;
  border-radius: 12px;
  height: 44px;
  padding: 0 16px;
  font-size: 14px;
  color: #6B7280;
  cursor: pointer;
  flex: 1 1 480px;
  max-width: 560px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
  overflow: hidden;
  white-space: nowrap;
  outline: none;
  box-sizing: border-box;
}

.search-trigger-btn:hover {
  border-color: var(--color-primary-500);
  background-color: #FFFFFF;
  color: var(--color-text-main);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.search-trigger-btn:focus-visible {
  border-color: var(--color-primary-600);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.search-trigger-icon {
  width: 18px !important;
  max-width: 18px !important;
  height: 18px !important;
  max-height: 18px !important;
  stroke-width: 1.75px;
  flex-shrink: 0;
  color: #6B7280;
  transition: color var(--transition-fast);
  display: inline-block !important;
}

.search-trigger-btn:hover .search-trigger-icon {
  color: var(--color-primary-600);
}

.search-trigger-text {
  flex: 1 1 auto;
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #6B7280;
  font-weight: 400;
  font-size: 14px;
  letter-spacing: -0.01em;
}

.search-trigger-text .placeholder-desktop {
  display: inline;
}

.search-trigger-text .placeholder-mobile {
  display: none;
}

.search-shortcut-kbd {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background-color: #FFFFFF;
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: #6B7280;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

@media (max-width: 1023px) and (min-width: 768px) {
  .search-trigger-btn {
    flex: 1 1 360px;
    max-width: 420px;
    min-width: 280px;
  }
}

@media (max-width: 767px) {
  .header-actions {
    gap: 10px;
  }

  .search-trigger-btn {
    height: 44px;
    padding: 0 12px;
    max-width: 100%;
    flex: 1 1 auto;
    min-width: 140px;
  }

  .search-trigger-text .placeholder-desktop {
    display: none;
  }

  .search-trigger-text .placeholder-mobile {
    display: inline;
  }

  .search-shortcut-kbd {
    display: none;
  }
}

@media (max-width: 540px) {
  .header-actions .btn-primary {
    display: none;
  }
}

/* Mobile Hamburger Toggle Button (16px Icon) */
.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  color: var(--color-text-main);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.mobile-menu-toggle svg {
  width: 16px !important;
  height: 16px !important;
  stroke-width: 1.5px;
}

.mobile-menu-toggle:hover {
  background-color: var(--color-bg-subtle);
}

@media (min-width: 1024px) {
  .mobile-menu-toggle,
  .mobile-drawer,
  .mobile-drawer-overlay {
    display: none !important;
  }
}

/* Mobile Drawer Overlay */
.mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  z-index: var(--z-drawer);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-drawer-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

/* Mobile Drawer Panel */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background-color: var(--color-bg-body);
  z-index: calc(var(--z-drawer) + 1);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-modal);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  padding: var(--space-6);
  overflow-y: auto;
}

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

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
  margin-bottom: var(--space-6);
}

.mobile-drawer-close {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
}

.mobile-drawer-close svg {
  width: 16px !important;
  height: 16px !important;
  stroke-width: 1.5px;
}

.mobile-drawer-close:hover {
  background-color: var(--color-bg-subtle);
  color: var(--color-text-main);
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--color-text-main);
  border-radius: var(--radius-md);
  text-decoration: none;
}

.mobile-nav-link:hover, .mobile-nav-link.is-active {
  background-color: var(--color-primary-50);
  color: var(--color-primary-600);
}

.mobile-drawer-cta {
  margin-top: auto;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-subtle);
}

/* Official Brand Logo Image Styles */
.brand-logo-img {
  height: 52px !important;
  max-height: 54px !important;
  width: auto !important;
  max-width: 160px !important;
  object-fit: contain !important;
  display: block !important;
}

.logo-icon-img {
  width: 36px;
  height: 36px;
  object-fit: cover;
  object-position: left center;
  border-radius: var(--radius-md);
  display: block;
}