/*
 * Adtlas DAI Management System - Navbar Styles
 * 
 * This file contains the navbar-specific styles for the Adtlas application.
 * It includes top navigation bar, user menu, notifications, and responsive behavior.
 */

/* ============================================================================
   NAVBAR LAYOUT
   ============================================================================ */

.navbar {
  position: fixed;
  top: 0;
  right: 0;
  left: var(--sidebar-width);
  height: var(--navbar-height);
  background: var(--white);
  border-bottom: 1px solid var(--light-gray);
  z-index: 999;
  transition: left var(--transition-base);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.sidebar.collapsed ~ .content-wrapper .navbar,
.content-wrapper.sidebar-collapsed .navbar {
  left: 70px;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-lg);
}

/* ============================================================================
   NAVBAR LEFT SECTION
   ============================================================================ */

.navbar-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.navbar-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--dark);
  margin: 0;
}

.navbar-subtitle {
  font-size: var(--font-size-sm);
  color: var(--gray);
  margin: 0;
  margin-left: var(--spacing-sm);
}

.mobile-sidebar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  color: var(--dark);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.mobile-sidebar-toggle:hover {
  background: var(--light);
  color: var(--primary-color);
}

/* ============================================================================
   NAVBAR CENTER SECTION
   ============================================================================ */

.navbar-center {
  flex: 1;
  max-width: 600px;
  margin: 0 var(--spacing-xl);
}

.navbar-search {
  position: relative;
  width: 100%;
}

.navbar-search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 3rem;
  border: 2px solid var(--light-gray);
  border-radius: 50px;
  background: var(--light);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.navbar-search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--white);
  box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.navbar-search-input::placeholder {
  color: var(--gray);
}

.navbar-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray);
  font-size: var(--font-size-sm);
  pointer-events: none;
}

.navbar-search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow-lg);
  max-height: 400px;
  overflow-y: auto;
  z-index: 1000;
  display: none;
}

.navbar-search-results.show {
  display: block;
}

.navbar-search-result {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--light-gray);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.navbar-search-result:hover {
  background: var(--light);
}

.navbar-search-result:last-child {
  border-bottom: none;
}

.navbar-search-result-title {
  font-weight: 500;
  color: var(--dark);
  margin-bottom: 0.25rem;
}

.navbar-search-result-description {
  font-size: var(--font-size-sm);
  color: var(--gray);
  margin: 0;
}

/* ============================================================================
   NAVBAR RIGHT SECTION
   ============================================================================ */

.navbar-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.navbar-action {
  position: relative;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--gray);
  font-size: var(--font-size-base);
}

.navbar-action:hover {
  background: var(--light);
  color: var(--primary-color);
  transform: scale(1.05);
}

.navbar-action.active {
  background: var(--primary-color);
  color: var(--white);
}

.navbar-action-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--danger-color);
  color: var(--white);
  font-size: 0.625rem;
  font-weight: 600;
  padding: 0.125rem 0.375rem;
  border-radius: 50px;
  min-width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* ============================================================================
   NOTIFICATIONS DROPDOWN
   ============================================================================ */

.navbar-notifications {
  position: relative;
}

.navbar-notifications-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: 350px;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-lg);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.navbar-notifications.show .navbar-notifications-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.navbar-notifications-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-notifications-title {
  font-weight: 600;
  color: var(--dark);
  margin: 0;
}

.navbar-notifications-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.navbar-notifications-action {
  background: none;
  border: none;
  color: var(--primary-color);
  font-size: var(--font-size-sm);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.navbar-notifications-action:hover {
  background: var(--light);
}

.navbar-notifications-list {
  max-height: 400px;
  overflow-y: auto;
}

.navbar-notification-item {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--light-gray);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  position: relative;
}

.navbar-notification-item:hover {
  background: var(--light);
}

.navbar-notification-item:last-child {
  border-bottom: none;
}

.navbar-notification-item.unread {
  background: rgba(102, 126, 234, 0.05);
}

.navbar-notification-item.unread::before {
  content: '';
  position: absolute;
  left: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--primary-color);
  border-radius: 50%;
}

.navbar-notification-item.unread .navbar-notification-content {
  margin-left: var(--spacing-lg);
}

.navbar-notification-content {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.navbar-notification-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.navbar-notification-icon.success {
  background: var(--success-light);
  color: var(--success-color);
}

.navbar-notification-icon.warning {
  background: var(--warning-light);
  color: #856404;
}

.navbar-notification-icon.danger {
  background: var(--danger-light);
  color: var(--danger-color);
}

.navbar-notification-icon.info {
  background: var(--info-light);
  color: var(--info-color);
}

.navbar-notification-body {
  flex: 1;
  min-width: 0;
}

.navbar-notification-title {
  font-weight: 500;
  color: var(--dark);
  margin-bottom: 0.25rem;
  font-size: var(--font-size-sm);
}

.navbar-notification-message {
  color: var(--gray);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  margin-bottom: 0.25rem;
}

.navbar-notification-time {
  color: var(--gray);
  font-size: var(--font-size-xs);
  margin: 0;
}

.navbar-notifications-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--light-gray);
  text-align: center;
}

.navbar-notifications-footer a {
  color: var(--primary-color);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
}

.navbar-notifications-footer a:hover {
  text-decoration: underline;
}

/* ============================================================================
   USER MENU DROPDOWN
   ============================================================================ */

.navbar-user {
  position: relative;
}

.navbar-user-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: none;
  border: none;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.navbar-user-toggle:hover {
  background: var(--light);
}

.navbar-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--light-gray);
  transition: border-color var(--transition-fast);
}

.navbar-user-toggle:hover .navbar-user-avatar {
  border-color: var(--primary-color);
}

.navbar-user-info {
  text-align: left;
  min-width: 0;
}

.navbar-user-name {
  font-weight: 500;
  color: var(--dark);
  font-size: var(--font-size-sm);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.navbar-user-role {
  color: var(--gray);
  font-size: var(--font-size-xs);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.navbar-user-chevron {
  color: var(--gray);
  font-size: var(--font-size-xs);
  transition: transform var(--transition-fast);
}

.navbar-user.show .navbar-user-chevron {
  transform: rotate(180deg);
}

.navbar-user-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: 220px;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-lg);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.navbar-user.show .navbar-user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.navbar-user-dropdown-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--light-gray);
  text-align: center;
}

.navbar-user-dropdown-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto var(--spacing-sm);
  border: 3px solid var(--light-gray);
}

.navbar-user-dropdown-name {
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 0.25rem;
}

.navbar-user-dropdown-email {
  color: var(--gray);
  font-size: var(--font-size-sm);
  margin: 0;
}

.navbar-user-dropdown-menu {
  padding: var(--spacing-sm) 0;
}

.navbar-user-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0.75rem var(--spacing-lg);
  color: var(--dark);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
}

.navbar-user-dropdown-item:hover {
  background: var(--light);
  color: var(--primary-color);
  text-decoration: none;
}

.navbar-user-dropdown-item i {
  width: 16px;
  text-align: center;
  color: var(--gray);
}

.navbar-user-dropdown-item:hover i {
  color: var(--primary-color);
}

.navbar-user-dropdown-divider {
  height: 1px;
  background: var(--light-gray);
  margin: var(--spacing-sm) 0;
}

.navbar-user-dropdown-item.danger {
  color: var(--danger-color);
}

.navbar-user-dropdown-item.danger:hover {
  background: var(--danger-light);
  color: var(--danger-color);
}

.navbar-user-dropdown-item.danger i {
  color: var(--danger-color);
}

/* ============================================================================
   BREADCRUMB
   ============================================================================ */

.navbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--gray);
}

.navbar-breadcrumb-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.navbar-breadcrumb-item a {
  color: var(--gray);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.navbar-breadcrumb-item a:hover {
  color: var(--primary-color);
}

.navbar-breadcrumb-item.active {
  color: var(--dark);
  font-weight: 500;
}

.navbar-breadcrumb-separator {
  color: var(--light-gray);
  font-size: var(--font-size-xs);
}

/* ============================================================================
   RESPONSIVE BEHAVIOR
   ============================================================================ */

@media (max-width: 1200px) {
  .navbar-center {
    max-width: 400px;
  }
  
  .navbar-user-info {
    display: none;
  }
}

@media (max-width: 992px) {
  .navbar-center {
    max-width: 300px;
    margin: 0 var(--spacing-md);
  }
  
  .navbar-search-input {
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 768px) {
  .navbar {
    left: 0;
  }
  
  .mobile-sidebar-toggle {
    display: block;
  }
  
  .navbar-center {
    display: none;
  }
  
  .navbar-title {
    font-size: var(--font-size-lg);
  }
  
  .navbar-subtitle {
    display: none;
  }
  
  .navbar-actions {
    gap: var(--spacing-xs);
  }
  
  .navbar-action {
    width: 36px;
    height: 36px;
  }
  
  .navbar-notifications-dropdown,
  .navbar-user-dropdown {
    width: 280px;
    right: -var(--spacing-md);
  }
}

@media (max-width: 576px) {
  .navbar-container {
    padding: 0 var(--spacing-md);
  }
  
  .navbar-right {
    gap: var(--spacing-xs);
  }
  
  .navbar-action {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-sm);
  }
  
  .navbar-notifications-dropdown,
  .navbar-user-dropdown {
    width: calc(100vw - 2rem);
    right: -var(--spacing-md);
    left: var(--spacing-md);
  }
}

/* ============================================================================
   NAVBAR THEMES
   ============================================================================ */

/* Dark Theme */
[data-theme="dark"] .navbar {
  background: #1a202c;
  border-bottom-color: #2d3748;
}

[data-theme="dark"] .navbar-title {
  color: var(--white);
}

[data-theme="dark"] .navbar-subtitle {
  color: #a0aec0;
}

[data-theme="dark"] .navbar-search-input {
  background: #2d3748;
  border-color: #4a5568;
  color: var(--white);
}

[data-theme="dark"] .navbar-search-input::placeholder {
  color: #a0aec0;
}

[data-theme="dark"] .navbar-action {
  color: #a0aec0;
}

[data-theme="dark"] .navbar-action:hover {
  background: #2d3748;
  color: var(--white);
}

[data-theme="dark"] .navbar-notifications-dropdown,
[data-theme="dark"] .navbar-user-dropdown {
  background: #1a202c;
  border-color: #2d3748;
}

/* ============================================================================
   ANIMATIONS
   ============================================================================ */

@keyframes navbarSlideDown {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

.navbar.slide-down {
  animation: navbarSlideDown 0.3s ease;
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */

.navbar-action:focus,
.navbar-user-toggle:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.navbar-search-input:focus {
  outline: none;
}

/* Screen reader only content */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
  .navbar {
    display: none;
  }
}

/* ============================================================================
   HIGH CONTRAST MODE
   ============================================================================ */

@media (prefers-contrast: high) {
  .navbar {
    border-bottom: 2px solid #000000;
  }
  
  .navbar-action,
  .navbar-user-toggle {
    border: 1px solid #000000;
  }
  
  .navbar-search-input {
    border: 2px solid #000000;
  }
}

/* ============================================================================
   REDUCED MOTION
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
  .navbar,
  .navbar-action,
  .navbar-user-toggle,
  .navbar-notifications-dropdown,
  .navbar-user-dropdown {
    transition: none;
  }
  
  .navbar.slide-down {
    animation: none;
  }
}