/* ============================================================================
   Supplies Management - Responsive Styles
   Mobile-first approach
   ============================================================================ */

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors */
  --primary: #007bff;
  --primary-hover: #0056b3;
  --secondary: #6c757d;
  --success: #28a745;
  --danger: #dc3545;
  --warning: #ffc107;
  --info: #17a2b8;
  --light: #f8f9fa;
  --dark: #343a40;

  /* Grays */
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Border */
  --border-radius: 0.375rem;
  --border-color: var(--gray-300);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--gray-900);
  background-color: var(--gray-100);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================================
   Mobile Header (Visible on mobile only)
   ============================================================================ */
.mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: white;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.mobile-header h1 {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.menu-btn, .back-btn, .add-btn-mobile {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--spacing-sm);
  color: var(--gray-700);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.add-btn-mobile {
  background: var(--primary);
  color: white;
  border-radius: 50%;
  font-size: 2rem;
}

/* ============================================================================
   Container Layout
   ============================================================================ */
.container {
  display: flex;
  min-height: 100vh;
}

/* ============================================================================
   Sidebar (Navigation)
   ============================================================================ */
.sidebar {
  width: 280px;
  background: white;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: -280px;
  height: 100vh;
  z-index: 1000;
  transition: left 0.3s ease;
  overflow-y: auto;
}

.sidebar.active {
  left: 0;
}

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

.sidebar-header h2 {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.close-sidebar {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-600);
  width: 36px;
  height: 36px;
}

.sidebar-nav {
  padding: var(--spacing-md);
  flex: 1;
}

.nav-item {
  display: block;
  padding: var(--spacing-md);
  color: var(--gray-700);
  text-decoration: none;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-xs);
  transition: background-color 0.2s;
}

.nav-item:hover {
  background-color: var(--gray-100);
}

.nav-item.active {
  background-color: var(--primary);
  color: white;
}

.sidebar-stats {
  padding: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

.stat-card {
  background: var(--gray-100);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  text-align: center;
}

.stat-card.alert {
  background: #fff3cd;
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--gray-900);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  margin-top: var(--spacing-xs);
}

/* ============================================================================
   Main Content
   ============================================================================ */
.main-content {
  flex: 1;
  padding: var(--spacing-md);
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

/* Page Header */
.page-header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--gray-900);
}

.page-subtitle {
  color: var(--gray-600);
  margin-top: var(--spacing-xs);
}

/* Type Filter Tabs */
.type-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  background: white;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.type-tab {
  flex: 1;
  min-width: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md);
  background: var(--gray-100);
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: var(--font-size-sm);
}

.type-tab:hover {
  background: var(--gray-200);
}

.type-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.type-tab .tab-icon {
  font-size: 1.5rem;
}

.type-tab .tab-label {
  font-weight: 500;
  font-size: var(--font-size-sm);
}

.type-tab .tab-count {
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 2px 8px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 12px;
  min-width: 24px;
  text-align: center;
}

.type-tab.active .tab-count {
  background: rgba(255, 255, 255, 0.2);
}

/* Toolbar (Search & Filters) */
.toolbar {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-md);
}

.search-box {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.search-input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 2.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
}

.search-icon {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.5;
}

.filters {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.filter-select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  background: white;
}

.toggle-filter {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  cursor: pointer;
}

.toggle-filter input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

/* Results Summary */
.results-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.view-options {
  display: flex;
  gap: var(--spacing-xs);
}

.view-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  background: white;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.view-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Loading State */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  min-height: 400px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  background: white;
  border-radius: var(--border-radius);
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.3;
}

.empty-state h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--gray-700);
}

.empty-state p {
  color: var(--gray-600);
  margin-bottom: var(--spacing-lg);
}

/* ============================================================================
   Table View
   ============================================================================ */
.table-container {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
}

.supplies-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.supplies-table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--gray-700);
  background: var(--gray-50);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.supplies-table th.sortable {
  cursor: pointer;
  user-select: none;
}

.supplies-table th.sortable:hover {
  background: var(--gray-100);
}

.supplies-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
}

.supplies-table tr:hover {
  background-color: var(--gray-50);
}

.item-name-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.item-name-content small {
  color: var(--gray-600);
  font-size: 0.8rem;
}

.category-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--gray-100);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

.stock.low {
  color: var(--danger);
  font-weight: 600;
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  white-space: nowrap;
}

.badge-success {
  background: #d4edda;
  color: #155724;
}

.badge-warning {
  background: #fff3cd;
  color: #856404;
}

.badge-danger {
  background: #f8d7da;
  color: #721c24;
}

.badge-info {
  background: #d1ecf1;
  color: #0c5460;
}

/* Type Badges */
.type-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
}

.type-badge-supply {
  background: #e3f2fd;
  color: #1565c0;
}

.type-badge-tool {
  background: #fff3e0;
  color: #e65100;
}

.type-badge-item {
  background: #f3e5f5;
  color: #6a1b9a;
}

.type-icon {
  font-size: 1rem;
}

/* Actions */
.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  padding: var(--spacing-xs);
  opacity: 0.7;
  transition: opacity 0.2s;
}

.btn-icon:hover {
  opacity: 1;
}

/* ============================================================================
   Grid View (Mobile-friendly)
   ============================================================================ */
.supplies-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.supply-card {
  background: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: var(--spacing-md);
  gap: var(--spacing-md);
}

.card-header h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  flex: 1;
}

.card-body {
  margin-bottom: var(--spacing-md);
}

.card-field {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--gray-200);
}

.card-field:last-child {
  border-bottom: none;
}

.field-label {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
}

.field-value {
  font-weight: 500;
}

.field-value.low {
  color: var(--danger);
}

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

/* ============================================================================
   Pagination
   ============================================================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
}

.pagination-info {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
}

/* ============================================================================
   Buttons
   ============================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  min-height: 44px;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn-secondary {
  background: white;
  color: var(--gray-700);
  border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--gray-100);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background: #c82333;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
  min-height: 36px;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
}

/* ============================================================================
   Modal
   ============================================================================ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  display: none;
  overflow-y: auto;
  padding: var(--spacing-md);
}

.modal.active {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 800px;
  margin: auto;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  z-index: 2001;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  background: white;
  z-index: 1;
}

.modal-header h2 {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-600);
  width: 36px;
  height: 36px;
}

/* Form */
.supply-form {
  padding: var(--spacing-lg);
}

.form-section {
  margin-bottom: var(--spacing-xl);
}

.form-section h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--gray-800);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-weight: 500;
  font-size: var(--font-size-sm);
  color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-family: inherit;
}

.form-group textarea {
  resize: vertical;
}

.input-group {
  display: flex;
  gap: 0;
}

.input-group input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  flex: 1;
}

.input-group select {
  border-left: none;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  max-width: 100px;
}

.checkbox-group label {
  flex-direction: row;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  position: sticky;
  bottom: 0;
  background: white;
}

/* ============================================================================
   Overlay
   ============================================================================ */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  display: none;
}

.overlay.active {
  display: block;
}

/* ============================================================================
   Toast Notifications
   ============================================================================ */
.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  background: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--info);
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s;
  max-width: 320px;
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

.toast-success {
  border-left-color: var(--success);
}

.toast-error {
  border-left-color: var(--danger);
}

.toast-warning {
  border-left-color: var(--warning);
}

/* ============================================================================
   Desktop Styles (768px and up)
   ============================================================================ */
@media (min-width: 768px) {
  /* Hide mobile header */
  .mobile-header {
    display: none;
  }

  /* Show sidebar */
  .sidebar {
    left: 0;
    position: relative;
  }

  .close-sidebar {
    display: none;
  }

  /* Main content adjusts */
  .main-content {
    padding: var(--spacing-xl);
  }

  /* Page header horizontal */
  .page-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  /* Filters horizontal */
  .filters {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
  }

  .filter-select {
    min-width: 180px;
  }

  /* Form rows */
  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  /* Grid view columns */
  .supplies-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  /* Grid view 3 columns */
  .supplies-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================================================
   Photo Upload & Preview
   ============================================================================ */
/* Visually hidden but accessible - Safari-compatible approach */
.photo-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.photo-preview-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.photo-preview {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--gray-100);
  border: 2px solid var(--border-color);
}

.photo-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-preview-actions {
  position: absolute;
  top: var(--spacing-xs);
  right: var(--spacing-xs);
  display: flex;
  gap: var(--spacing-xs);
}

.photo-preview-btn {
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: background 0.2s;
}

.photo-preview-btn:hover {
  background: white;
}

.photo-preview-loading {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
}

.photo-gallery-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.photo-gallery-overlay.active {
  display: flex;
}

.photo-gallery-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}

.photo-gallery-image {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
}

.photo-gallery-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: white;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.photo-gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: white;
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.photo-gallery-nav:hover {
  opacity: 1;
}

.photo-gallery-nav.prev {
  left: -60px;
}

.photo-gallery-nav.next {
  right: -60px;
}

.photo-thumbnail {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--border-radius);
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s;
}

.photo-thumbnail:hover {
  border-color: var(--primary);
}

/* Photo count badge for multiple photos */
.photo-count {
  position: absolute;
  bottom: 4px;
  right: 4px;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 10px;
  pointer-events: none;
}

.item-name-content {
  position: relative;
}

.card-photo-container {
  margin-bottom: var(--spacing-md);
}

/* ============================================================================
   AI Features - System Recommendations Modal
   ============================================================================ */
.system-recommendations-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.system-recommendations-modal.active {
  display: flex;
}

.system-recommendations-content {
  background: white;
  border-radius: var(--border-radius);
  max-width: 700px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.system-recommendations-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.system-recommendations-header h2 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--text-primary);
}

.system-recommendations-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  flex: 1;
}

.system-recommendations-intro {
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.system-recommendations-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.system-recommendation-item {
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  transition: border-color 0.2s, background 0.2s;
}

.system-recommendation-item:hover {
  border-color: var(--primary);
  background: var(--gray-50);
}

.system-rec-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.system-rec-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  flex: 1;
  cursor: pointer;
}

.system-rec-checkbox input[type="checkbox"] {
  margin-top: 2px;
  cursor: pointer;
}

.system-rec-title {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.system-rec-title strong {
  color: var(--text-primary);
  font-size: 1rem;
}

.system-rec-badge {
  display: inline-block;
  padding: 2px 8px;
  background: var(--gray-200);
  border-radius: var(--border-radius-sm);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.system-rec-confidence {
  background: var(--success);
  color: white;
  padding: 4px 8px;
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

.system-rec-body {
  padding-left: 24px;
}

.system-rec-details {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
  font-size: 0.9rem;
}

.system-rec-reason {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--gray-50);
  border-left: 3px solid var(--primary);
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
}

.system-rec-reason p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.5;
}

.detail-label {
  font-weight: 600;
  color: var(--text-secondary);
}

.system-recommendations-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* Loading/Empty/Error states */
.loading-state,
.empty-state,
.error-state {
  text-align: center;
  padding: var(--spacing-xxl);
  color: var(--text-secondary);
}

/* System Sections (AI Suggestions + Browse All) */
.system-section {
  margin-bottom: var(--spacing-xl);
}

.system-section:last-child {
  margin-bottom: 0;
}

.system-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-xs) 0;
}

.system-section-intro {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* System Search Box */
.system-search-box {
  margin-bottom: var(--spacing-md);
}

.system-search-box input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: 14px;
}

.system-search-box input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
}

/* All Systems List */
.all-systems-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
}

.system-browse-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px 12px;
  border-bottom: 1px solid var(--gray-100);
  cursor: pointer;
  transition: background 0.15s;
}

.system-browse-item:last-child {
  border-bottom: none;
}

.system-browse-item:hover {
  background: var(--gray-50);
}

.system-browse-item.selected {
  background: rgba(0, 123, 255, 0.1);
}

.system-browse-item input[type="checkbox"] {
  flex-shrink: 0;
  cursor: pointer;
}

.system-browse-name {
  flex: 1;
  font-size: 14px;
  color: var(--text-primary);
}

.system-browse-meta {
  font-size: 12px;
  color: var(--text-secondary);
}

.system-browse-checkbox {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  cursor: pointer;
}

.system-browse-mfr {
  font-size: 12px;
  color: var(--text-secondary);
  margin-left: auto;
}

.no-systems-found {
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
}

.loading-state .spinner {
  margin: 0 auto var(--spacing-md) auto;
}

.empty-state p,
.error-state p {
  margin: var(--spacing-sm) 0;
}

.text-secondary {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Button helpers */
.btn-block {
  width: 100%;
}

.form-help {
  display: block;
  margin-top: var(--spacing-xs);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Modal close button */
.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s, color 0.2s;
}

.modal-close-btn:hover {
  background: var(--gray-100);
  color: var(--text-primary);
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
  .system-recommendations-content {
    max-height: 90vh;
  }

  .system-rec-header {
    flex-direction: column;
    align-items: stretch;
  }

  .system-rec-confidence {
    align-self: flex-end;
  }
}

/* ============================================================================
   Quick Add (inline add for categories/locations)
   ============================================================================ */
.select-with-add {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.select-with-add select {
  flex: 1;
  min-width: 0;
}

.btn-quick-add {
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: white;
  font-size: 20px;
  font-weight: bold;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.1s;
}

.btn-quick-add:hover {
  background: var(--primary-hover);
}

.btn-quick-add:active {
  transform: scale(0.95);
}

/* Quick Add Modal */
.quick-add-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 16px;
}

.quick-add-modal.active {
  display: flex;
}

.quick-add-content {
  background: white;
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 360px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.2s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.quick-add-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--gray-200);
}

.quick-add-header h3 {
  margin: 0;
  font-size: 18px;
  color: var(--gray-800);
}

.quick-add-body {
  padding: 16px;
}

.quick-add-body input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: 16px;
}

.quick-add-body input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
}

.quick-add-footer {
  display: flex;
  gap: 12px;
  padding: 16px;
  border-top: 1px solid var(--gray-200);
}

.quick-add-footer .btn {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  border: none;
}

.quick-add-footer .btn-secondary {
  background: var(--gray-200);
  color: var(--gray-700);
}

.quick-add-footer .btn-primary {
  background: var(--primary);
  color: white;
}

.quick-add-footer .btn-primary:hover {
  background: var(--primary-hover);
}

/* ============================================================================
   Print Styles
   ============================================================================ */
@media print {
  .sidebar,
  .mobile-header,
  .toolbar,
  .pagination,
  .actions,
  .btn,
  .modal,
  .overlay,
  .toast-container {
    display: none !important;
  }

  body {
    background: white;
  }

  .main-content {
    margin: 0;
    padding: 0;
  }
}