/**
 * Préstamos - Estilos específicos
 * Aula STEAM - Instituto de Educación en Ingeniería
 */

/* ==========================================
   Page Layout
   ========================================== */
.main-content {
  padding: var(--spacing-5) 0;
  min-height: calc(100vh - 64px - 60px);
}

/* ==========================================
   Page Header
   ========================================== */
.page-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-5);
}

.page-header-content {
  flex: 1;
  min-width: 250px;
}

.page-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--spacing-1);
}

.page-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  margin: 0;
}

.page-header-actions {
  display: flex;
  gap: var(--spacing-2);
}

/* ==========================================
   Alert for overdue
   ========================================== */
.alert {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-5);
}

.alert svg {
  flex-shrink: 0;
}

.alert .btn {
  margin-left: auto;
}

/* ==========================================
   Stats Row
   ========================================== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-5);
}

.stat-card {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-4);
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.stat-card-danger {
  border-left: 4px solid var(--color-danger);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon-primary {
  background-color: rgba(30, 58, 95, 0.1);
  color: var(--color-primary);
}

.stat-icon-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.stat-icon-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.stat-icon-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.stat-icon-info {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--color-info);
}

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.2;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* ==========================================
   Toolbar
   ========================================== */
.toolbar {
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-5);
}

.toolbar-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  align-items: center;
}

.toolbar-search {
  flex: 1;
  min-width: 250px;
}

.search-input-wrapper {
  position: relative;
}

.search-icon {
  position: absolute;
  left: var(--spacing-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  pointer-events: none;
}

.search-input {
  padding-left: calc(var(--spacing-3) + 24px);
}

.toolbar-filters {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.filter-group {
  margin-bottom: 0;
  min-width: 140px;
}

.toolbar-actions {
  display: flex;
  gap: var(--spacing-2);
}

.toolbar-actions .btn-text {
  display: none;
}

@media (min-width: 768px) {
  .toolbar-actions .btn-text {
    display: inline;
  }
}

/* ==========================================
   Table Enhancements
   ========================================== */
.table-actions-header {
  text-align: center;
  width: 180px;
}

.table-actions {
  display: flex;
  gap: var(--spacing-1);
  justify-content: center;
  flex-wrap: wrap;
}

.table-actions .btn {
  padding: var(--spacing-1) var(--spacing-2);
}

.table-actions .btn svg {
  width: 16px;
  height: 16px;
}

/* Sortable columns */
.sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 24px !important;
}

.sortable::after {
  content: '';
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-gray-300);
  margin-top: 3px;
}

.sortable.sort-asc::after {
  border-top-color: var(--color-primary);
  margin-top: 3px;
}

.sortable.sort-desc::after {
  border-top-color: transparent;
  border-bottom-color: var(--color-primary);
  margin-top: -8px;
}

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

/* Row states */
.row-vencido {
  background-color: rgba(239, 68, 68, 0.08);
}

.row-devuelto {
  opacity: 0.7;
}

.row-cancelado {
  opacity: 0.5;
  text-decoration: line-through;
}

/* Items summary in table */
.items-summary {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.items-count {
  font-weight: 600;
  color: var(--color-primary);
}

/* ==========================================
   Empty State
   ========================================== */
.empty-state {
  text-align: center;
  padding: var(--spacing-8);
}

.empty-state-icon {
  color: var(--color-gray-300);
  margin-bottom: var(--spacing-4);
}

.empty-state-title {
  font-size: var(--font-size-xl);
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-2);
}

.empty-state-text {
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-4);
}

/* ==========================================
   Form Sections
   ========================================== */
.form-section {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.form-section-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--spacing-4);
  padding-bottom: var(--spacing-2);
  border-bottom: 1px solid var(--color-gray-200);
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.form-row:last-child {
  margin-bottom: 0;
}

.form-row .form-group {
  margin-bottom: 0;
}

.form-row .col-4 {
  flex: 1;
  min-width: 150px;
}

.form-row .col-6 {
  flex: 1;
  min-width: 200px;
}

.text-danger {
  color: var(--color-danger);
}

/* ==========================================
   Items Selector
   ========================================== */
.items-selector {
  display: grid;
  gap: var(--spacing-4);
}

.items-search {
  margin-bottom: var(--spacing-2);
}

.items-available {
  max-height: 250px;
  overflow-y: auto;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-2);
}

.item-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-2);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.item-option:hover {
  background-color: var(--color-gray-50);
}

.item-option.selected {
  background-color: rgba(30, 58, 95, 0.1);
}

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

.item-option-checkbox {
  flex-shrink: 0;
}

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

.item-option-name {
  font-weight: 500;
  color: var(--color-dark);
}

.item-option-meta {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.item-option-quantity {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.item-option-quantity input {
  width: 70px;
  text-align: center;
}

.items-selected {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-3);
  background-color: var(--color-gray-50);
}

.items-selected-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-2);
}

.items-selected-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.items-selected-empty {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  font-style: italic;
  margin: 0;
}

.selected-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-2);
  background: var(--color-white);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
}

.selected-item-name {
  font-weight: 500;
}

.selected-item-quantity {
  color: var(--color-primary);
  font-weight: 600;
}

.selected-item-remove {
  color: var(--color-danger);
  cursor: pointer;
  padding: var(--spacing-1);
}

.selected-item-remove:hover {
  background-color: rgba(239, 68, 68, 0.1);
  border-radius: var(--border-radius-sm);
}

/* ==========================================
   Prestamo Details
   ========================================== */
.prestamo-details {
  display: grid;
  gap: var(--spacing-4);
}

.prestamo-details-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: var(--spacing-4);
  border-bottom: 1px solid var(--color-gray-200);
}

.prestamo-id {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.prestamo-details-section {
  padding-top: var(--spacing-4);
}

.prestamo-details-section h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--spacing-3);
}

.prestamo-details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-4);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

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

.detail-value {
  font-size: var(--font-size-base);
  color: var(--color-dark);
}

.prestamo-items-list {
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-3);
}

.prestamo-item-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-2);
  border-bottom: 1px solid var(--color-gray-200);
}

.prestamo-item-row:last-child {
  border-bottom: none;
}

.prestamo-item-name {
  font-weight: 500;
}

.prestamo-item-qty {
  color: var(--color-primary);
  font-weight: 600;
}

.prestamo-details-meta {
  display: flex;
  gap: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--color-gray-200);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  flex-wrap: wrap;
}

/* ==========================================
   Devolucion Modal
   ========================================== */
#devolucion-resumen {
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

#devolucion-resumen h4 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-3);
}

/* ==========================================
   Confirm Delete / Cancel styles
   ========================================== */
.confirm-delete-content {
  text-align: center;
}

.confirm-delete-icon {
  color: var(--color-danger);
  margin-bottom: var(--spacing-4);
}

.confirm-delete-message {
  font-size: var(--font-size-lg);
  color: var(--color-dark);
  margin-bottom: var(--spacing-2);
}

.confirm-delete-warning {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin: 0;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-4) 0;
  text-align: center;
}

.footer p {
  margin: 0;
  font-size: var(--font-size-sm);
}

/* ==========================================
   Responsive Adjustments
   ========================================== */
@media (max-width: 768px) {
  .page-header {
    flex-direction: column;
  }

  .page-header-actions {
    width: 100%;
  }

  .page-header-actions .btn {
    flex: 1;
    justify-content: center;
  }

  .alert {
    flex-wrap: wrap;
  }

  .alert .btn {
    margin-left: 0;
    margin-top: var(--spacing-2);
    width: 100%;
  }

  .toolbar-search {
    width: 100%;
  }

  .toolbar-filters {
    width: 100%;
  }

  .filter-group {
    flex: 1;
    min-width: calc(50% - var(--spacing-2));
  }

  .toolbar-actions {
    width: 100%;
    justify-content: flex-end;
  }

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

  .stat-card {
    padding: var(--spacing-3);
  }

  .stat-icon {
    width: 40px;
    height: 40px;
  }

  .stat-value {
    font-size: var(--font-size-xl);
  }

  .form-row {
    flex-direction: column;
  }

  .form-row .col-4,
  .form-row .col-6 {
    width: 100%;
  }

  .table-actions {
    flex-direction: column;
  }

  .prestamo-details-grid {
    grid-template-columns: 1fr 1fr;
  }

  .prestamo-details-meta {
    flex-direction: column;
    gap: var(--spacing-2);
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: var(--font-size-2xl);
  }

  .stats-row {
    grid-template-columns: 1fr;
  }

  .filter-group {
    min-width: 100%;
  }

  .prestamo-details-grid {
    grid-template-columns: 1fr;
  }
}