/* ===================================
   BAE MOBILE - SISTEMA MODERNO 2025
   ================================ */

/* Variables CSS para consistencia */
:root {
  --c-primary: #1d5ee3;
  --c-primary-dark: #0f3cc9;
  --c-primary-light: #4579e8;
  --c-secondary: #6c757d;
  --c-success: #28a745;
  --c-danger: #dc3545;
  --c-warning: #ffc107;
  --c-info: #17a2b8;
  --c-light: #f8f9fa;
  --c-dark: #2c3e50;
  --c-white: #ffffff;
  --c-gray-100: #f8f9fa;
  --c-gray-200: #e9ecef;
  --c-gray-300: #dee2e6;
  --c-gray-400: #ced4da;
  --c-gray-500: #adb5bd;
  --c-gray-600: #6c757d;
  --c-gray-700: #495057;
  --c-gray-800: #343a40;
  --c-gray-900: #212529;
  
  /* Shadows */
  --c-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --c-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  --c-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
  --c-shadow-xl: 0 8px 25px rgba(0, 0, 0, 0.15);
  
  /* Border radius */
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.2s ease;
  
  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
}

/* Reset y base */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 100vh;
  margin: 0;
  padding: 0;
}

/* Container principal */
#contenido {
  width: 100% !important;
  padding: 1rem;
  min-height: 100vh;
}

.container-perso {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Hero Section */
.bae-hero {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--c-shadow-xl);
}

.bae-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1000 100' fill='none'%3E%3Cpath d='M0,50 Q250,10 500,50 T1000,50 L1000,100 L0,100 Z' fill='rgba(255,255,255,0.1)'/%3E%3C/svg%3E") no-repeat bottom;
  background-size: cover;
  pointer-events: none;
}

.bae-hero h1 {
  color: var(--c-white);
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 2;
}

.bae-hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  margin: 0;
  position: relative;
  z-index: 2;
}

/* Filtros modernos */
#filtros {
  background: var(--c-white);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--c-shadow-lg);
  border: none;
  position: relative;
  overflow: hidden;
}

#filtros::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-primary-light));
}

.filtros-section-title {
  color: var(--c-dark);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin: 0 0 1.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filtros-section-title::before {
  content: "🔍";
  font-size: var(--font-size-xl);
}

/* Form groups modernos */
.form-group-modern {
  margin-bottom: 1.5rem;
}

.filtros-label {
  font-size: var(--font-size-base) !important;
  font-weight: 600;
  color: var(--c-dark);
  margin-bottom: 0.5rem;
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Select modernos */
.form-control-modern {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--c-gray-900);
  background-color: var(--c-white);
  background-image: none;
  border: 2px solid var(--c-gray-300);
  border-radius: var(--border-radius);
  transition: var(--transition);
  box-shadow: var(--c-shadow-sm);
  
}

.form-control-modern:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(29, 94, 227, 0.1);
  transform: translateY(-1px);
}

.form-control-modern:hover {
  border-color: var(--c-primary-light);
}

/* Loading states */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--c-gray-300);
  border-radius: 50%;
  border-top-color: var(--c-primary);
  animation: spin 0.8s ease-in-out infinite;
  margin-right: 0.5rem;
}

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

/* Sesión container */
.bae-sesion-container {
  background: var(--c-white);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-top: 2rem;
  box-shadow: var(--c-shadow-lg);
  border: none;
  position: relative;
  overflow: hidden;
}

.bae-sesion-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--c-success), #20c997);
}

.bae-session-title {
  color: var(--c-dark);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  text-align: center;
  margin: 0 0 1rem 0;
  position: relative;
}

.bae-session-title::before {
  content: "📋";
  margin-right: 0.5rem;
}

.bae-session-date {
  text-align: center;
  font-size: var(--font-size-lg);
  color: var(--c-gray-600);
  margin-bottom: 2rem;
}

.bae-session-date .date-badge {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  color: var(--c-white);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  box-shadow: var(--c-shadow);
  display: inline-block;
}

/* BAE Document card */
.bae-document-card {
  background: var(--c-white);
  border: 2px solid var(--c-gray-200);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  margin: 1rem 0;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.bae-document-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--c-shadow-xl);
  border-color: var(--c-primary-light);
}

.bae-document-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
}

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

.bae-document-title {
  color: var(--c-dark);
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin: 0;
  flex: 1;
  min-width: 0;
}

.bae-download-btn {
  background: linear-gradient(135deg, var(--c-dark), #34495e);
  color: var(--c-white);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--c-shadow);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.bae-download-btn::before {
  content: "📄";
}

.bae-download-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--c-shadow-lg);
  background: linear-gradient(135deg, #34495e, var(--c-dark));
  color: var(--c-white);
  text-decoration: none;
}

.bae-download-btn:active {
  transform: translateY(0);
}

/* Expedientes table */
.expedientes-container {
  margin-top: 2rem;
  background: var(--c-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--c-shadow-lg);
}

.expedientes-header {
  background: linear-gradient(135deg, var(--c-info), #138496);
  color: var(--c-white);
  padding: 1rem 1.5rem;
  font-size: var(--font-size-lg);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.expedientes-header::before {
  content: "📊";
}

.table-responsive {
  border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* Collapse buttons */
.btn-collapse {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
  color: var(--c-white);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-collapse:hover {
  background: linear-gradient(135deg, var(--c-primary-light), var(--c-primary));
  transform: translateY(-1px);
  box-shadow: var(--c-shadow);
  color: var(--c-white);
}

.btn-collapse[aria-expanded="true"]::after {
  content: "🔼";
}

.btn-collapse[aria-expanded="false"]::after {
  content: "🔽";
}

/* Expedientes cards */
.expediente-card {
  background: var(--c-white);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--border-radius);
  padding: 1rem;
  margin: 0.5rem 0;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.expediente-card:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--c-shadow);
}

.expediente-card.expediente-incorporado {
  border-left: 4px solid var(--c-warning);
  background: linear-gradient(135deg, #fff9e6 0%, var(--c-white) 100%);
}

.expediente-tipo {
  background: linear-gradient(135deg, var(--c-success), #20c997);
  color: var(--c-white);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-align: center;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.expediente-incorporado .expediente-tipo {
  background: linear-gradient(135deg, var(--c-warning), #e0a800);
}

.expediente-extracto {
  color: var(--c-gray-700);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-bottom: 1rem;
  padding: 1rem;
  background: var(--c-gray-100);
  border-radius: var(--border-radius-sm);
  border-left: 4px solid var(--c-primary);
}

.expediente-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.expediente-numero {
  color: var(--c-dark);
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.expediente-actions {
  display: flex;
  gap: 0.5rem;
}

.expediente-detalles {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--c-gray-50);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--c-gray-200);
}

/* DataTable overrides mejorados */
.dataTables_wrapper {
  padding: 1rem;
}

.dataTables_filter input {
  border: 2px solid var(--c-gray-300);
  border-radius: var(--border-radius);
  padding: 0.5rem 1rem;
  transition: var(--transition);
}

.dataTables_filter input:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(29, 94, 227, 0.1);
}

/* Responsive design */
@media (max-width: 768px) {
  .bae-hero {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  .bae-hero h1 {
    font-size: var(--font-size-3xl);
  }
  
  #filtros {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  .bae-document-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .bae-download-btn {
    justify-content: center;
    width: 100%;
  }
  
  .bae-sesion-container {
    padding: 1.5rem;
  }
  
  .bae-session-title {
    font-size: var(--font-size-2xl);
  }
}

@media (max-width: 480px) {
  #contenido {
    padding: 0.5rem;
  }
  
  .container-perso {
    padding: 0 0.5rem;
  }
  
  .bae-hero {
    padding: 1rem;
  }
  
  .bae-hero h1 {
    font-size: var(--font-size-2xl);
  }
  
  #filtros {
    padding: 1rem;
  }
  
  .bae-sesion-container {
    padding: 1rem;
  }
}

/* Animaciones de entrada */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Estados de loading */
.loading-state {
  opacity: 0.6;
  pointer-events: none;
  position: relative;
}

.loading-state::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 3px solid var(--c-gray-300);
  border-radius: 50%;
  border-top-color: var(--c-primary);
  animation: spin 0.8s linear infinite;
  z-index: 1000;
}

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

/* Focus states mejorados */
*:focus {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

/* Back to Top Button */
.back-to-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: var(--c-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.5rem;
  box-shadow: var(--c-shadow-xl);
  transition: var(--transition);
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top-btn.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-btn:hover {
  background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
  transform: translateY(-5px) scale(1.1);
  box-shadow: 0 12px 30px rgba(29, 94, 227, 0.4);
}

.back-to-top-btn:active {
  transform: translateY(-2px) scale(1.05);
}

.back-to-top-btn i {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-8px);
  }
  60% {
    transform: translateY(-4px);
  }
}

/* Responsive para el botón */
@media (max-width: 768px) {
  .back-to-top-btn {
    width: 50px;
    height: 50px;
    bottom: 1.5rem;
    right: 1.5rem;
    font-size: 1.2rem;
  }
}

@media (max-width: 480px) {
  .back-to-top-btn {
    width: 45px;
    height: 45px;
    bottom: 1rem;
    right: 1rem;
    font-size: 1rem;
  }
}

/* Print styles mejorados */
@media print {
  .bae-hero,
  #filtros,
  .bae-download-btn {
    display: none;
  }
  
  .bae-sesion-container {
    box-shadow: none;
    border: 1px solid var(--c-gray-400);
  }
}