/**
 * =====================================================
 * DOCUMENTOS PREMIUM - DISEÑO PROFESIONAL
 * Mobile-First & Responsive Design
 * Sección de Gestión de Documentos de Obligaciones
 * =====================================================
 */

/* =====================================================
   LAYOUT PRINCIPAL
   ===================================================== */

.docs-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-4);
  max-width: 1400px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .docs-container {
    padding: var(--space-6);
    gap: var(--space-6);
  }
}

/* =====================================================
   HEADER DE SECCIÓN
   ===================================================== */

.docs-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-5);
  background: linear-gradient(135deg, var(--corp-primary-bg) 0%, white 100%);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--corp-primary);
}

@media (min-width: 640px) {
  .docs-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.docs-header-content {
  flex: 1;
}

.docs-header-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--corp-gray-900);
  margin: 0 0 var(--space-2) 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.docs-header-title::before {
  content: '📁';
  font-size: var(--text-2xl);
}

.docs-header-subtitle {
  font-size: var(--text-sm);
  color: var(--corp-gray-600);
  margin: 0;
}

.docs-header-actions {
  display: flex;
  gap: var(--space-2);
}

@media (max-width: 640px) {
  .docs-header-actions {
    width: 100%;
  }
  
  .docs-header-actions .btn {
    flex: 1;
  }
}

/* =====================================================
   WIZARD DE SELECCIÓN (CLIENTE + OBLIGACIÓN)
   ===================================================== */

.docs-wizard {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.docs-wizard-header {
  padding: var(--space-5);
  background: var(--corp-gray-50);
  border-bottom: 2px solid var(--corp-gray-200);
}

.docs-wizard-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--corp-gray-900);
  margin: 0 0 var(--space-2) 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.docs-wizard-subtitle {
  font-size: var(--text-sm);
  color: var(--corp-gray-600);
  margin: 0;
}

.docs-wizard-body {
  padding: var(--space-5);
}

@media (max-width: 640px) {
  .docs-wizard-header,
  .docs-wizard-body {
    padding: var(--space-4);
  }
}

/* =====================================================
   CLIENTE SELECCIONADO
   ===================================================== */

.docs-selected-client {
  background: linear-gradient(135deg, var(--corp-success-light) 0%, white 100%);
  border: 2px solid var(--corp-success);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-5);
  animation: slideDown 0.3s ease;
}

.docs-selected-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}

.docs-selected-info {
  flex: 1;
  min-width: 200px;
}

.docs-selected-label {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--corp-success);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-1);
}

.docs-selected-name {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--corp-gray-900);
  margin-bottom: var(--space-1);
  word-break: break-word;
}

.docs-selected-meta {
  font-size: var(--text-sm);
  color: var(--corp-gray-600);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.docs-selected-meta::before {
  content: '👤';
  font-size: var(--text-base);
}

.docs-btn-change {
  padding: var(--space-2) var(--space-4);
  background: white;
  border: 2px solid var(--corp-success);
  border-radius: var(--radius-md);
  color: var(--corp-success);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  min-height: 36px;
}

.docs-btn-change:hover {
  background: var(--corp-success);
  color: white;
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

@media (max-width: 480px) {
  .docs-selected-header {
    flex-direction: column;
  }
  
  .docs-btn-change {
    width: 100%;
  }
}

/* =====================================================
   BÚSQUEDA DE CLIENTES
   ===================================================== */

.docs-search-group {
  margin-bottom: var(--space-5);
}

.docs-search-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--corp-gray-700);
  margin-bottom: var(--space-2);
}

.docs-search-input {
  width: 100%;
  padding: var(--space-3) var(--space-4) var(--space-3) var(--space-10);
  font-size: var(--text-base);
  color: var(--corp-gray-900);
  background: white url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' fill='%2364748b' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.47 6.47 0 0016 9.5 6.5 6.5 0 109.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") no-repeat left var(--space-3) center;
  border: 2px solid var(--corp-gray-300);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.docs-search-input:focus {
  outline: none;
  border-color: var(--corp-primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
  background-color: var(--corp-primary-bg);
}

.docs-search-input::placeholder {
  color: var(--corp-gray-400);
}

/* =====================================================
   LISTA DE ITEMS (CLIENTES/OBLIGACIONES)
   ===================================================== */

.docs-items-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-height: 400px;
  overflow-y: auto;
  padding: var(--space-2);
  margin: 0 calc(var(--space-2) * -1);
}

@media (max-width: 768px) {
  .docs-items-list {
    max-height: 300px;
  }
}

/* Scrollbar */
.docs-items-list::-webkit-scrollbar {
  width: 6px;
}

.docs-items-list::-webkit-scrollbar-track {
  background: var(--corp-gray-100);
  border-radius: var(--radius-sm);
}

.docs-items-list::-webkit-scrollbar-thumb {
  background: var(--corp-gray-400);
  border-radius: var(--radius-sm);
}

.docs-items-list::-webkit-scrollbar-thumb:hover {
  background: var(--corp-gray-500);
}

.docs-item {
  padding: var(--space-4);
  background: white;
  border: 2px solid var(--corp-gray-200);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.docs-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--corp-primary);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.docs-item:hover {
  border-color: var(--corp-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.docs-item:hover::before {
  transform: scaleY(1);
}

.docs-item.selected {
  border-color: var(--corp-primary);
  background: var(--corp-primary-bg);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.docs-item.selected::before {
  transform: scaleY(1);
}

.docs-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.docs-item-title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--corp-gray-900);
  flex: 1;
  min-width: 150px;
  word-break: break-word;
}

.docs-item-badge {
  padding: var(--space-1) var(--space-3);
  background: var(--corp-gray-200);
  color: var(--corp-gray-700);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.docs-item-badge.success {
  background: var(--corp-success-light);
  color: var(--corp-success);
}

.docs-item-badge.warning {
  background: var(--corp-warning-light);
  color: var(--corp-warning);
}

.docs-item-badge.danger {
  background: var(--corp-danger-light);
  color: var(--corp-danger);
}

.docs-item-badge.neutral {
  background: var(--corp-gray-200);
  color: var(--corp-gray-600);
}

.docs-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--corp-gray-600);
}

.docs-item-meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

@media (max-width: 480px) {
  .docs-item {
    padding: var(--space-3);
  }
  
  .docs-item-title {
    font-size: var(--text-sm);
  }
  
  .docs-item-meta {
    font-size: var(--text-xs);
    gap: var(--space-2);
  }
}

/* =====================================================
   LISTA DE DOCUMENTOS
   ===================================================== */

.docs-list-container {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-top: var(--space-5);
}

.docs-list-header {
  padding: var(--space-5);
  background: var(--corp-gray-50);
  border-bottom: 2px solid var(--corp-gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.docs-list-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--corp-gray-900);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.docs-list-title::before {
  content: '📄';
  font-size: var(--text-xl);
}

@media (max-width: 640px) {
  .docs-list-header {
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4);
  }
  
  .docs-list-header .btn {
    width: 100%;
  }
}

.docs-list-body {
  padding: var(--space-5);
}

@media (max-width: 640px) {
  .docs-list-body {
    padding: var(--space-4);
  }
}

/* =====================================================
   TABLA DE DOCUMENTOS (DESKTOP)
   ===================================================== */

.docs-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  border: 1px solid var(--corp-gray-200);
}

.docs-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

.docs-table thead {
  background: var(--corp-gray-50);
}

.docs-table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--corp-gray-700);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--corp-gray-300);
  white-space: nowrap;
}

.docs-table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--corp-gray-200);
  font-size: var(--text-sm);
  color: var(--corp-gray-800);
}

.docs-table tbody tr {
  transition: background 0.2s ease;
}

.docs-table tbody tr:hover {
  background: var(--corp-gray-50);
}

.docs-table tbody tr:last-child td {
  border-bottom: none;
}

/* Ocultar tabla en móvil */
@media (max-width: 768px) {
  .docs-table-wrapper {
    display: none;
  }
}

/* =====================================================
   CARDS DE DOCUMENTOS (MÓVIL)
   ===================================================== */

.docs-cards {
  display: none;
  flex-direction: column;
  gap: var(--space-4);
}

@media (max-width: 768px) {
  .docs-cards {
    display: flex;
  }
}

.docs-card {
  background: white;
  border: 2px solid var(--corp-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

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

.docs-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-3);
  gap: var(--space-2);
}

.docs-card-type {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--corp-info-light);
  color: var(--corp-info);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}

.docs-card-version {
  padding: var(--space-1) var(--space-3);
  background: var(--corp-gray-200);
  color: var(--corp-gray-700);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
}

.docs-card-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.docs-card-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.docs-card-info-label {
  font-weight: var(--font-semibold);
  color: var(--corp-gray-600);
  min-width: 60px;
}

.docs-card-info-value {
  color: var(--corp-gray-800);
  flex: 1;
  word-break: break-word;
}

.docs-card-actions {
  display: flex;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--corp-gray-200);
}

.docs-card-actions .btn {
  flex: 1;
  justify-content: center;
}

/* =====================================================
   BOTONES DE ACCIÓN
   ===================================================== */

.docs-btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  min-height: 36px;
  white-space: nowrap;
}

.docs-btn-view {
  background: var(--corp-info-light);
  color: var(--corp-info);
  border: 1px solid transparent;
}

.docs-btn-view:hover {
  background: var(--corp-info);
  color: white;
  box-shadow: var(--shadow-sm);
}

.docs-btn-copy {
  background: var(--corp-gray-100);
  color: var(--corp-gray-700);
}

.docs-btn-copy:hover {
  background: var(--corp-gray-700);
  color: white;
  box-shadow: var(--shadow-sm);
}

.docs-btn-delete {
  background: var(--corp-danger-light);
  color: var(--corp-danger);
}

.docs-btn-delete:hover {
  background: var(--corp-danger);
  color: white;
  box-shadow: var(--shadow-sm);
}

@media (max-width: 480px) {
  .docs-btn-action {
    padding: var(--space-2);
    font-size: var(--text-xs);
  }
}

/* =====================================================
   ESTADOS VACÍOS
   ===================================================== */

.docs-empty {
  text-align: center;
  padding: var(--space-10) var(--space-6);
  background: var(--corp-gray-50);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--corp-gray-300);
}

.docs-empty-icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
  opacity: 0.7;
  animation: pulse 2s ease-in-out infinite;
}

.docs-empty-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--corp-gray-900);
  margin: 0 0 var(--space-2) 0;
}

.docs-empty-text {
  font-size: var(--text-base);
  color: var(--corp-gray-600);
  margin: 0 0 var(--space-5) 0;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

@media (max-width: 640px) {
  .docs-empty {
    padding: var(--space-8) var(--space-4);
  }
  
  .docs-empty-icon {
    font-size: 3rem;
  }
  
  .docs-empty-title {
    font-size: var(--text-base);
  }
  
  .docs-empty-text {
    font-size: var(--text-sm);
  }
}

/* =====================================================
   MODAL DE SUBIDA
   ===================================================== */

.docs-upload-preview {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--corp-gray-50);
  border-radius: var(--radius-md);
  border: 2px solid var(--corp-gray-200);
  margin: var(--space-4) 0;
}

.docs-upload-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

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

.docs-upload-name {
  font-weight: var(--font-semibold);
  color: var(--corp-gray-900);
  margin-bottom: var(--space-1);
  word-break: break-word;
}

.docs-upload-meta {
  font-size: var(--text-sm);
  color: var(--corp-gray-600);
}

/* =====================================================
   INFO BANNERS
   ===================================================== */

.docs-info-banner {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: var(--space-5);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.docs-info-banner.info {
  background: var(--corp-info-light);
  border-color: var(--corp-info);
  color: var(--corp-info);
}

.docs-info-banner.success {
  background: var(--corp-success-light);
  border-color: var(--corp-success);
  color: var(--corp-success);
}

.docs-info-banner.warning {
  background: var(--corp-warning-light);
  border-color: var(--corp-warning);
  color: var(--corp-warning);
}

/* =====================================================
   LOADING STATES
   ===================================================== */

.docs-skeleton {
  background: linear-gradient(90deg, var(--corp-gray-200) 25%, var(--corp-gray-100) 50%, var(--corp-gray-200) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
  height: 120px;
}

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

/* =====================================================
   UTILIDADES RESPONSIVE
   ===================================================== */

.docs-hide-mobile {
  display: block;
}

@media (max-width: 768px) {
  .docs-hide-mobile {
    display: none;
  }
}

.docs-hide-desktop {
  display: none;
}

@media (max-width: 768px) {
  .docs-hide-desktop {
    display: block;
  }
}

/* =====================================================
   ACCESIBILIDAD
   ===================================================== */

.docs-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus states */
.docs-item:focus-visible,
.docs-btn-action:focus-visible,
.docs-search-input:focus-visible {
  outline: 3px solid rgba(30, 64, 175, 0.5);
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}