.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 1.25rem;
  transition: all var(--transition);
  white-space: nowrap;
}

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

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

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
}

.btn-success {
  background: var(--color-success);
  color: #fff;
}

.btn-success:hover {
  background: #059669;
}

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-warning {
  background: var(--color-warning);
  color: #fff;
}

.btn-warning:hover {
  background: #d97706;
}

.btn-sm {
  padding: 0.25rem 0.625rem;
  font-size: 0.8rem;
}

.btn-icon {
  width: 2rem;
  height: 2rem;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-icon.btn-sm {
  width: 1.75rem;
  height: 1.75rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
}

.card-header h2,
.card-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.card-body {
  padding: 1.25rem;
}

.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
  white-space: nowrap;
}

.data-table td {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
}

.data-table tr:hover td {
  background: var(--color-surface-hover);
}

.data-table .actions-cell {
  display: flex;
  gap: 0.375rem;
}

.search-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  max-width: 320px;
}

.search-bar i {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.search-bar input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-size: 0.875rem;
  color: var(--color-text);
}

.search-bar input::placeholder {
  color: var(--color-text-muted);
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  color: var(--color-text-muted);
}

.empty-state i {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state p {
  font-size: 0.9rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background: var(--color-success-light);
  color: #065f46;
}

.badge-warning {
  background: var(--color-warning-light);
  color: #92400e;
}

.badge-danger {
  background: var(--color-danger-light);
  color: #991b1b;
}

.badge-info {
  background: var(--color-primary-light);
  color: #1e40af;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.875rem;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group input:disabled,
.form-group input[readonly] {
  background: var(--color-bg);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 640px) {
  .form-row,
  .form-row-3 {
    grid-template-columns: 1fr;
  }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: box-shadow var(--transition);
}

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

.stat-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.stat-icon.blue {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.stat-icon.green {
  background: var(--color-success-light);
  color: var(--color-success);
}

.stat-icon.yellow {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.stat-icon.red {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.stat-icon.purple {
  background: #ede9fe;
  color: #7c3aed;
}

.stat-icon.teal {
  background: #ccfbf1;
  color: #0d9488;
}

.stat-info {
  flex: 1;
  min-width: 0;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.25rem;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.stat-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 0.125rem;
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: modalIn var(--transition-slow);
}

.modal.wide {
  max-width: 720px;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.modal-close {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.modal-close:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.modal-body .form-group + .form-group {
  margin-top: 1rem;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border-light);
}

.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

@media (max-width: 640px) {
  .toast-container {
    left: 0.5rem;
    right: 0.5rem;
    top: 0.5rem;
  }
  .toast {
    max-width: 100%;
  }
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 500;
  pointer-events: auto;
  animation: toastIn var(--transition-slow);
  max-width: 400px;
}

.toast.toast-success {
  background: var(--color-success);
  color: #fff;
}

.toast.toast-error {
  background: var(--color-danger);
  color: #fff;
}

.toast.toast-warning {
  background: var(--color-warning);
  color: #fff;
}

.toast.toast-info {
  background: var(--color-primary);
  color: #fff;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.confirm-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 300;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.confirm-overlay.open {
  display: flex;
}

.confirm-dialog {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 2rem;
  max-width: 400px;
  width: 100%;
  text-align: center;
  animation: modalIn var(--transition-slow);
}

.confirm-icon {
  font-size: 2.5rem;
  color: var(--color-warning);
  margin-bottom: 0.75rem;
}

.confirm-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.confirm-message {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

.confirm-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding-top: 1rem;
  margin-top: 1rem;
  border-top: 1px solid var(--color-border-light);
}

.pagination button {
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  transition: all var(--transition);
}

.pagination button:hover {
  background: var(--color-surface-hover);
}

.pagination button.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.pagination span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.chart-container {
  position: relative;
  height: 300px;
}

@media (max-width: 640px) {
  .data-table th,
  .data-table td {
    padding: 0.4rem 0.5rem;
    font-size: 0.75rem;
  }

  .data-table .actions-cell {
    gap: 0.2rem;
  }

  .search-bar {
    max-width: 100%;
    flex: 1;
    padding: 0.375rem 0.5rem;
  }

  .search-bar input {
    font-size: 0.8rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  .stat-card {
    padding: 0.75rem;
    gap: 0.625rem;
  }

  .stat-icon {
    width: 2rem;
    height: 2rem;
    font-size: 0.875rem;
  }

  .stat-value {
    font-size: 1rem;
  }

  .stat-label {
    font-size: 0.7rem;
  }

  .modal {
    max-width: 100%;
    max-height: 100vh;
    height: 100vh;
    border-radius: 0;
    box-shadow: none;
  }

  .modal.wide {
    max-width: 100%;
  }

  .modal-overlay {
    padding: 0;
  }

  .modal-header {
    padding: 0.75rem 1rem;
  }

  .modal-title {
    font-size: 1rem;
  }

  .modal-body {
    padding: 1rem;
  }

  .modal-footer {
    padding: 0.75rem 1rem;
  }

  .confirm-dialog {
    margin: 1rem;
    padding: 1.25rem;
  }

  .confirm-title {
    font-size: 1rem;
  }

  .confirm-icon {
    font-size: 2rem;
  }

  .pagination {
    gap: 0.2rem;
    flex-wrap: wrap;
  }

  .pagination button {
    padding: 0.2rem 0.4rem;
    font-size: 0.7rem;
  }

  .chart-container {
    height: 200px;
  }

  .btn-sm {
    padding: 0.2rem 0.4rem;
    font-size: 0.7rem;
  }

  .btn-icon.btn-sm {
    width: 1.5rem;
    height: 1.5rem;
  }

  .card-header {
    padding: 0.75rem 1rem;
  }

  .card-body {
    padding: 1rem;
  }

  .empty-state {
    padding: 2rem 0.75rem;
  }
}