/* ==========================================================================
   Soliton Solja System - Custom Styles
   Modern UI/UX enhancements for AdminLTE 4
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Theme Variables)
   -------------------------------------------------------------------------- */
:root {
  /* Brand Colors */
  --soliton-primary: #0d6efd;
  --soliton-primary-dark: #0b5ed7;
  --soliton-secondary: #6c757d;
  --soliton-success: #198754;
  --soliton-warning: #ffc107;
  --soliton-danger: #dc3545;
  --soliton-info: #0dcaf0;
  
  /* Neutral Colors */
  --soliton-gray-100: #f8f9fa;
  --soliton-gray-200: #e9ecef;
  --soliton-gray-300: #dee2e6;
  --soliton-gray-400: #ced4da;
  --soliton-gray-500: #adb5bd;
  --soliton-gray-600: #6c757d;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

/* --------------------------------------------------------------------------
   Page Loading Indicator
   -------------------------------------------------------------------------- */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--soliton-primary), var(--soliton-info), var(--soliton-primary));
  background-size: 200% 100%;
  animation: loading-bar 1.5s ease-in-out infinite;
  z-index: 9999;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.page-loader.active {
  opacity: 1;
}

@keyframes loading-bar {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Spinner for buttons and actions */
.spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

.spinner-sm {
  width: 0.75rem;
  height: 0.75rem;
  border-width: 1.5px;
}

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

/* --------------------------------------------------------------------------
   Card Enhancements
   -------------------------------------------------------------------------- */
.card {
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--soliton-gray-200);
  padding: 1rem 1.25rem;
}

.card-header .card-title {
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 0;
}

.card-body {
  padding: 1.25rem;
}

/* Card with primary outline - enhanced */
.card.card-primary.card-outline {
  border-top: 3px solid var(--soliton-primary);
}

/* --------------------------------------------------------------------------
   Dashboard Metric Cards
   -------------------------------------------------------------------------- */
.metric-card {
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.metric-card .metric-icon {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2rem;
  opacity: 0.15;
  color: var(--soliton-primary);
}

.metric-card .metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1f2937;
  line-height: 1.2;
}

.metric-card .metric-label {
  font-size: 0.875rem;
  color: var(--soliton-gray-600);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.metric-card .metric-trend {
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

.metric-card .metric-trend.up { color: var(--soliton-success); }
.metric-card .metric-trend.down { color: var(--soliton-danger); }

/* Metric card color variants */
.metric-card.metric-primary { border-left: 4px solid var(--soliton-primary); }
.metric-card.metric-success { border-left: 4px solid var(--soliton-success); }
.metric-card.metric-warning { border-left: 4px solid var(--soliton-warning); }
.metric-card.metric-danger { border-left: 4px solid var(--soliton-danger); }
.metric-card.metric-info { border-left: 4px solid var(--soliton-info); }

/* --------------------------------------------------------------------------
   Table Enhancements
   -------------------------------------------------------------------------- */
.table-container {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.table {
  margin-bottom: 0;
}

/* Sticky header */
.table-sticky-header {
  max-height: 70vh;
  overflow-y: auto;
}

.table-sticky-header thead th {
  position: sticky;
  top: 0;
  background: #f8fafc;
  z-index: 10;
  box-shadow: inset 0 -2px 0 var(--soliton-gray-200);
}

/* Table header styling */
.table thead th {
  background: #f8fafc;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--soliton-gray-600);
  padding: 0.875rem 0.75rem;
  border-bottom: 2px solid var(--soliton-gray-200);
  white-space: nowrap;
}

/* Table body styling */
.table tbody td {
  padding: 0.75rem;
  vertical-align: middle;
  border-color: var(--soliton-gray-100);
  font-size: 0.875rem;
}

/* Zebra striping with hover */
.table-striped > tbody > tr:nth-of-type(odd) {
  background-color: rgba(0, 0, 0, 0.015);
}

.table-hover > tbody > tr {
  transition: background-color var(--transition-fast);
}

.table-hover > tbody > tr:hover {
  background-color: rgba(13, 110, 253, 0.04);
}

/* Table row selected state */
.table tbody tr.selected {
  background-color: rgba(13, 110, 253, 0.08);
}

/* Empty state styling */
.table-empty-state {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--soliton-gray-500);
}

.table-empty-state i {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.table-empty-state p {
  margin: 0;
  font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   Image Thumbnails
   -------------------------------------------------------------------------- */
.img-thumbnail-cell {
  padding: 0.25rem !important;
}

.img-thumbnail-wrapper {
  display: inline-block;
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--soliton-gray-100);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.img-thumbnail-wrapper:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.img-thumbnail-wrapper img {
  display: block;
  width: 60px;
  height: 45px;
  object-fit: cover;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.img-thumbnail-wrapper:hover img {
  opacity: 0.9;
}

.img-thumbnail-wrapper .zoom-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  color: white;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.img-thumbnail-wrapper:hover .zoom-icon {
  opacity: 1;
}

/* Lazy loading placeholder */
.img-thumbnail-wrapper img[data-src] {
  background: linear-gradient(90deg, var(--soliton-gray-200) 25%, var(--soliton-gray-100) 50%, var(--soliton-gray-200) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* No image placeholder */
.img-placeholder {
  width: 60px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--soliton-gray-100);
  border-radius: var(--radius-sm);
  color: var(--soliton-gray-400);
  font-size: 1.25rem;
}

/* --------------------------------------------------------------------------
   Image Modal Enhancements
   -------------------------------------------------------------------------- */
.modal-image-viewer .modal-content {
  background: transparent;
  border: none;
}

.modal-image-viewer .modal-header {
  background: rgba(0, 0, 0, 0.8);
  border: none;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modal-image-viewer .modal-header .modal-title {
  color: white;
  font-size: 0.9375rem;
}

.modal-image-viewer .modal-header .btn-close {
  filter: invert(1);
}

.modal-image-viewer .modal-body {
  padding: 0;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.modal-image-viewer .modal-body img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
}

.modal-image-viewer .modal-footer {
  background: rgba(0, 0, 0, 0.8);
  border: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* --------------------------------------------------------------------------
   Filter Form Styling
   -------------------------------------------------------------------------- */
.filter-form {
  background: var(--soliton-gray-100);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 1rem;
}

.filter-form .form-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  color: var(--soliton-gray-600);
  margin-bottom: 0.25rem;
}

.filter-form .form-control,
.filter-form .form-select {
  border-radius: var(--radius-sm);
  border-color: var(--soliton-gray-300);
  font-size: 0.875rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.filter-form .form-control:focus,
.filter-form .form-select:focus {
  border-color: var(--soliton-primary);
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

.filter-form .btn {
  font-size: 0.875rem;
  padding: 0.375rem 1rem;
}

/* --------------------------------------------------------------------------
   Pagination Enhancements
   -------------------------------------------------------------------------- */
.pagination-wrapper {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  background: var(--soliton-gray-100);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.pagination-info {
  font-size: 0.875rem;
  color: var(--soliton-gray-600);
}

.pagination-info strong {
  color: #1f2937;
}

.pagination {
  margin: 0;
}

.pagination .page-link {
  border-radius: var(--radius-sm);
  margin: 0 2px;
  border: none;
  color: var(--soliton-gray-600);
  font-size: 0.875rem;
  padding: 0.375rem 0.75rem;
  transition: all var(--transition-fast);
}

.pagination .page-link:hover {
  background: var(--soliton-primary);
  color: white;
}

.pagination .page-item.active .page-link {
  background: var(--soliton-primary);
  color: white;
}

.pagination .page-item.disabled .page-link {
  background: transparent;
  color: var(--soliton-gray-400);
}

/* --------------------------------------------------------------------------
   Sidebar Enhancements
   -------------------------------------------------------------------------- */
.app-sidebar .nav-link {
  border-radius: var(--radius-sm);
  margin: 2px 0.5rem;
  transition: all var(--transition-fast);
}

.app-sidebar .nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
}

.app-sidebar .nav-link.active {
  background: var(--soliton-primary) !important;
  color: white !important;
}

.app-sidebar .nav-link.active .nav-icon {
  color: white !important;
}

/* Sidebar brand enhancement */
.sidebar-brand {
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand .brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-brand .brand-image {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.sidebar-brand .brand-text {
  font-size: 0.9375rem;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Button Enhancements
   -------------------------------------------------------------------------- */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
}

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

.btn-primary:hover {
  background: var(--soliton-primary-dark);
  border-color: var(--soliton-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Button with loading state */
.btn.loading {
  pointer-events: none;
  opacity: 0.8;
}

.btn.loading .btn-text {
  visibility: hidden;
}

.btn.loading .spinner {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

/* --------------------------------------------------------------------------
   Alert/Toast Enhancements
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
}

.toast {
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.alert {
  border: none;
  border-radius: var(--radius-md);
  border-left: 4px solid;
}

.alert-danger { border-left-color: var(--soliton-danger); }
.alert-success { border-left-color: var(--soliton-success); }
.alert-warning { border-left-color: var(--soliton-warning); }
.alert-info { border-left-color: var(--soliton-info); }

/* --------------------------------------------------------------------------
   Login Page Enhancements
   -------------------------------------------------------------------------- */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
  width: 100%;
  max-width: 400px;
  padding: 1rem;
}

.login-box .card {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: 1.5rem;
}

.login-logo a {
  color: white;
  font-size: 1.5rem;
}

.login-card-body {
  padding: 2rem;
}

.login-box-msg {
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--soliton-gray-600);
}

/* --------------------------------------------------------------------------
   Breadcrumb Enhancements
   -------------------------------------------------------------------------- */
.breadcrumb {
  background: transparent;
  padding: 0;
  margin: 0;
  font-size: 0.875rem;
}

.breadcrumb-item a {
  color: var(--soliton-primary);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--soliton-gray-600);
}

/* --------------------------------------------------------------------------
   Content Header
   -------------------------------------------------------------------------- */
.app-content-header {
  padding: 1rem 0;
  margin-bottom: 0.5rem;
}

.app-content-header h3 {
  font-weight: 600;
  color: #1f2937;
  font-size: 1.5rem;
}

/* --------------------------------------------------------------------------
   Status Badges
   -------------------------------------------------------------------------- */
.badge-status {
  padding: 0.35em 0.65em;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.badge-status.active,
.badge-status.checked-in {
  background: rgba(25, 135, 84, 0.1);
  color: var(--soliton-success);
}

.badge-status.inactive,
.badge-status.checked-out {
  background: rgba(108, 117, 125, 0.1);
  color: var(--soliton-secondary);
}

.badge-status.pending {
  background: rgba(255, 193, 7, 0.1);
  color: #b45309;
}

/* --------------------------------------------------------------------------
   Responsive Adjustments
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .card-body {
    padding: 1rem;
  }
  
  .filter-form {
    padding: 0.75rem;
  }
  
  .pagination-wrapper {
    flex-direction: column;
    text-align: center;
  }
  
  .table thead th {
    font-size: 0.7rem;
    padding: 0.5rem;
  }
  
  .table tbody td {
    font-size: 0.8125rem;
    padding: 0.5rem;
  }
  
  .img-thumbnail-wrapper img {
    width: 50px;
    height: 38px;
  }
  
  .metric-card .metric-value {
    font-size: 1.5rem;
  }
  
  .metric-card .metric-icon {
    font-size: 2rem;
  }
}

@media (max-width: 576px) {
  .app-content-header .row {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .breadcrumb {
    justify-content: flex-start !important;
  }
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.text-truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hover-lift {
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.fade-in {
  animation: fadeIn var(--transition-normal);
}

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