@layer components {
  /* ============================================
   * CARDS
   * ============================================ */
  .card {
    @apply bg-white shadow rounded-lg p-6;
    background-color: var(--theme-card-bg, white);
    border-color: var(--theme-card-border, transparent);
  }
  .card-header {
    @apply border-b border-gray-200 pb-4 mb-4;
    border-color: var(--theme-border-primary, #e5e7eb);
  }
  .card-title {
    @apply text-lg font-semibold text-gray-900;
    color: var(--theme-text-primary, #111827);
  }

  /* ============================================
   * BUTTONS
   * ============================================ */
  .btn-primary {
    @apply inline-flex items-center justify-center px-4 py-2 rounded-lg font-medium transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed bg-teal-600 text-white hover:bg-teal-500 focus:ring-teal-500 focus:ring-offset-slate-900 shadow-sm border border-transparent;
  }
  .btn-primary-green {
    @apply inline-flex items-center justify-center px-4 py-2 rounded-lg font-medium transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed bg-teal-600 text-white hover:bg-teal-500 focus:ring-teal-500 focus:ring-offset-slate-900 shadow-sm border border-transparent;
  }
  .btn-secondary {
    @apply inline-flex items-center justify-center px-4 py-2 rounded-lg font-medium transition-colors focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed border border-gray-300 bg-white text-gray-700 hover:bg-gray-50 focus:ring-gray-500;
    background-color: var(--theme-card-bg, white);
    border-color: var(--theme-border-strong, #d1d5db);
    color: var(--theme-text-secondary, #374151);
  }
  .btn-danger {
    @apply inline-flex items-center justify-center px-4 py-2 rounded-lg font-medium transition-colors focus:outline-none focus:ring-2 focus:ring-offset-2 disabled:opacity-50 disabled:cursor-not-allowed bg-red-600 text-white hover:bg-red-700 focus:ring-red-500;
  }
  .btn-sm {
    @apply px-3 py-1.5 text-sm;
  }
  .btn-lg {
    @apply px-6 py-3 text-lg;
  }

  /* ============================================
   * FORM ELEMENTS
   * ============================================ */
  .form-label {
    @apply block text-sm font-medium text-gray-700 mb-1;
    color: var(--theme-text-secondary, #374151);
  }
  .form-input {
    @apply w-full border border-gray-300 rounded-lg px-3 py-2 focus:ring-2 focus:ring-blue-500 focus:border-blue-500 transition-colors;
    background-color: var(--theme-input-bg, white);
    border-color: var(--theme-input-border, #d1d5db);
    color: var(--theme-input-text, inherit);
  }
  .form-input-green {
    @apply w-full border border-gray-300 rounded-lg px-3 py-2 focus:ring-2 focus:ring-green-500 focus:border-green-500 transition-colors;
    background-color: var(--theme-input-bg, white);
    border-color: var(--theme-input-border, #d1d5db);
    color: var(--theme-input-text, inherit);
  }
  .form-select {
    @apply w-full border border-gray-300 rounded-lg px-3 py-2 focus:ring-2 focus:ring-blue-500 focus:border-blue-500 transition-colors appearance-none bg-white pr-10;
    background-color: var(--theme-input-bg, white);
    border-color: var(--theme-input-border, #d1d5db);
    color: var(--theme-input-text, inherit);
  }
  .form-select-green {
    @apply w-full border border-gray-300 rounded-lg px-3 py-2 focus:ring-2 focus:ring-green-500 focus:border-green-500 transition-colors appearance-none bg-white pr-10;
    background-color: var(--theme-input-bg, white);
    border-color: var(--theme-input-border, #d1d5db);
    color: var(--theme-input-text, inherit);
  }
  .form-textarea {
    @apply w-full border border-gray-300 rounded-lg px-3 py-2 focus:ring-2 focus:ring-blue-500 focus:border-blue-500 transition-colors resize-y min-h-[100px];
    background-color: var(--theme-input-bg, white);
    border-color: var(--theme-input-border, #d1d5db);
    color: var(--theme-input-text, inherit);
  }
  .form-checkbox {
    @apply h-4 w-4 text-blue-600 border-gray-300 rounded focus:ring-blue-500;
  }
  .form-checkbox-green {
    @apply h-4 w-4 text-green-600 border-gray-300 rounded focus:ring-green-500;
  }
  .form-error {
    @apply text-sm text-red-600 mt-1;
  }
  .form-hint {
    @apply text-sm text-gray-500 mt-1;
    color: var(--theme-text-tertiary, #6b7280);
  }

  /* ============================================
   * BADGES
   * ============================================ */
  .badge-blue {
    @apply inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-blue-100 text-blue-600;
  }
  .badge-green {
    @apply inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-600;
  }
  .badge-red {
    @apply inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-red-100 text-red-600;
  }
  .badge-yellow {
    @apply inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-yellow-100 text-yellow-600;
  }
  .badge-gray {
    @apply inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-gray-100 text-gray-600;
  }
  .badge-purple {
    @apply inline-flex items-center px-2.5 py-0.5 rounded-full text-xs font-medium bg-purple-100 text-purple-600;
  }

  /* ============================================
   * ALERTS
   * ============================================ */
  .alert-success {
    @apply rounded-lg p-4 border flex items-start gap-3 bg-green-50 border-green-200 text-green-800;
  }
  .alert-error {
    @apply rounded-lg p-4 border flex items-start gap-3 bg-red-50 border-red-200 text-red-800;
  }
  .alert-info {
    @apply rounded-lg p-4 border flex items-start gap-3 bg-blue-50 border-blue-200 text-blue-800;
  }
  .alert-warning {
    @apply rounded-lg p-4 border flex items-start gap-3 bg-yellow-50 border-yellow-200 text-yellow-800;
  }

  /* ============================================
   * TABLES
   * ============================================ */
  .table-header {
    @apply px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider bg-gray-50;
    background-color: var(--theme-section-bg, #f9fafb);
    color: var(--theme-text-tertiary, #6b7280);
  }
  .table-cell {
    @apply px-6 py-4 whitespace-nowrap text-sm text-gray-900;
    color: var(--theme-text-primary, #111827);
  }
  .table-cell-secondary {
    @apply px-6 py-4 whitespace-nowrap text-sm text-gray-500;
    color: var(--theme-text-tertiary, #6b7280);
  }
  .table-row {
    @apply border-b border-gray-200;
    border-color: var(--theme-border-primary, #e5e7eb);
  }
  .table-row-hover {
    @apply hover:bg-gray-50 transition-colors;
  }

  /* ============================================
   * STATS CARDS
   * ============================================ */
  .stats-card-blue {
    @apply p-6 rounded-lg border bg-blue-50 border-blue-100;
  }
  .stats-card-green {
    @apply p-6 rounded-lg border bg-green-50 border-green-100;
  }
  .stats-card-red {
    @apply p-6 rounded-lg border bg-red-50 border-red-100;
  }
  .stats-card-yellow {
    @apply p-6 rounded-lg border bg-yellow-50 border-yellow-100;
  }
  .stats-value {
    @apply text-3xl font-bold;
  }
  .stats-label {
    @apply text-sm font-medium mt-1;
  }

  /* ============================================
   * NAVIGATION
   * ============================================ */
  .nav-link {
    @apply flex items-center px-4 py-3 rounded-lg transition-colors;
  }
  .nav-link-active {
    @apply bg-gray-800 text-white;
  }
  .nav-link-hover {
    @apply hover:bg-gray-700 hover:text-white;
  }

  /* ============================================
   * MODALS
   * ============================================ */
  .modal-backdrop {
    @apply fixed inset-0 bg-black/50 backdrop-blur-sm z-40;
  }
  .modal-container {
    @apply fixed inset-0 z-50 flex items-center justify-center p-4;
  }
  .modal-content {
    @apply bg-white rounded-lg shadow-xl max-w-lg w-full max-h-[90vh] overflow-y-auto;
    background-color: var(--theme-card-bg, white);
    border-color: var(--theme-card-border, transparent);
  }
  .modal-header {
    @apply px-6 py-4 border-b border-gray-200;
    border-color: var(--theme-border-primary, #e5e7eb);
  }
  .modal-body {
    @apply px-6 py-4;
  }
  .modal-footer {
    @apply px-6 py-4 border-t border-gray-200 flex justify-end gap-3;
    border-color: var(--theme-border-primary, #e5e7eb);
  }

  /* ============================================
   * EMPTY STATES
   * ============================================ */
  .empty-state {
    @apply text-center py-12;
  }
  .empty-state-icon {
    @apply mx-auto h-12 w-12 text-gray-400;
    color: var(--theme-text-muted, #9ca3af);
  }
  .empty-state-title {
    @apply mt-4 text-lg font-medium text-gray-900;
    color: var(--theme-text-primary, #111827);
  }
  .empty-state-description {
    @apply mt-2 text-sm text-gray-500;
    color: var(--theme-text-tertiary, #6b7280);
  }

  /* ============================================
   * PAGINATION (pure CSS - no @apply)
   * ============================================ */
  .pagination-container {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1.5rem;
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
  }
  .pagination-info {
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: var(--theme-text-tertiary, #6b7280);
    font-weight: 500;
  }
  .pagination-nav {
    display: flex;
    align-items: center;
    gap: 0.375rem;
  }
  .pagination-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    font-size: 0.875rem;
    line-height: 1;
    font-weight: 500;
    color: var(--theme-text-secondary, #374151);
    background-color: var(--theme-card-bg, #fff);
    border: 1px solid var(--theme-border-primary, #e5e7eb);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
  }
  .pagination-btn:hover {
    background-color: var(--theme-hover-bg, #f9fafb);
    border-color: var(--theme-border-strong, #d1d5db);
  }
  .pagination-btn-disabled {
    opacity: 0.3;
    cursor: not-allowed;
  }
  .pagination-btn-disabled:hover {
    background-color: var(--theme-card-bg, #fff);
    border-color: var(--theme-border-primary, #e5e7eb);
  }
  .pagination-gap {
    padding: 0.5rem;
    font-size: 0.875rem;
    color: var(--theme-text-muted, #9ca3af);
    font-weight: 500;
  }
  /* Active state - unified slate gradient matching header cards */
  .pagination-btn-active-blue,
  .pagination-btn-active-green,
  .pagination-btn-active-purple,
  .pagination-btn-active-pink,
  .pagination-btn-active-orange {
    background: linear-gradient(to right, #1e293b, #0f172a);
    border-color: #1e293b;
    color: #fff;
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.3);
  }
  .pagination-btn-active-blue:hover,
  .pagination-btn-active-green:hover,
  .pagination-btn-active-purple:hover,
  .pagination-btn-active-pink:hover,
  .pagination-btn-active-orange:hover {
    background: linear-gradient(to right, #334155, #1e293b);
    border-color: #334155;
  }

  /* ============================================
   * DROPDOWNS
   * ============================================ */
  .dropdown-menu {
    @apply absolute mt-2 bg-white rounded-lg shadow-lg border border-gray-200 py-1 z-50;
    background-color: var(--theme-card-bg, white);
    border-color: var(--theme-border-primary, #e5e7eb);
  }
  .dropdown-item {
    @apply block px-4 py-2 text-sm text-gray-700 hover:bg-gray-50 transition-colors;
    color: var(--theme-text-secondary, #374151);
  }
  .dropdown-item-active {
    @apply bg-gray-100;
    background-color: var(--theme-section-bg, #f3f4f6);
  }

  /* ============================================
   * MOBILE UTILITIES
   * ============================================ */
  .line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .line-clamp-1 {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .scrollbar-hide::-webkit-scrollbar {
    display: none;
  }

  .scrollbar-hide {
    -ms-overflow-style: none;
    scrollbar-width: none;
  }

  /* ============================================
   * CALENDAR GRID CONTAINER
   * ============================================ */
  .cal-grid-bg {
    background-color: #f1f3f6;
  }

  .theme-dark .cal-grid-bg {
    background-color: #0c1425;
  }

  /* ============================================
   * CALENDAR GRID SLOTS - Card Style
   * ============================================ */
  .cal-slot {
    position: relative;
    background: transparent;
    transition: all 0.2s ease;
  }

  .cal-slot::before {
    content: '';
    position: absolute;
    inset: 2px 3px;
    border-radius: 6px;
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.04);
    transition: all 0.2s ease;
    z-index: 0;
  }

  .cal-slot:hover::before {
    background: rgba(204, 251, 241, 0.35);
    box-shadow: 0 2px 8px rgba(13, 148, 136, 0.1), 0 0 0 1px rgba(13, 148, 136, 0.15);
  }

  /* Ensure slot content stays above the pseudo-element */
  .cal-slot > * {
    position: relative;
    z-index: 1;
  }

  .cal-slot-blocked {
    position: relative;
    background: transparent;
  }

  .cal-slot-blocked::before {
    content: '';
    position: absolute;
    inset: 2px 3px;
    border-radius: 6px;
    background: rgba(241, 245, 249, 0.35);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 0;
  }

  .cal-slot-timeoff {
    position: relative;
    background: transparent;
  }

  .cal-slot-timeoff::before {
    content: '';
    position: absolute;
    inset: 2px 3px;
    border-radius: 6px;
    background: rgba(241, 245, 249, 0.4);
    border-left: 4px solid #6b7280;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 0;
  }

  .cal-slot-timeoff > * {
    position: relative;
    z-index: 1;
  }

  /* ---- Dark theme overrides ---- */
  .theme-dark .cal-slot::before {
    background: rgba(30, 41, 59, 0.3);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }

  .theme-dark .cal-slot:hover::before {
    background: rgba(13, 148, 136, 0.12);
    box-shadow: 0 2px 8px rgba(13, 148, 136, 0.15), 0 0 0 1px rgba(13, 148, 136, 0.12);
  }

  .theme-dark .cal-slot-blocked::before {
    background: rgba(30, 41, 59, 0.25);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }

  .theme-dark .cal-slot-timeoff::before {
    background: rgba(30, 41, 59, 0.3);
    border-left-color: #64748b;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }

  /* Safe area padding for iOS devices with notch */
  .safe-area-bottom {
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .safe-area-top {
    padding-top: env(safe-area-inset-top, 0);
  }
}