/* ===========================
   Sistema de Inventario yNok
   Diseño Profesional y Moderno
   =========================== */

:root {
  /* Paleta de colores profesional con significado semántico */
  --primary-color: #1e3a5f;        /* Azul marino profundo - Principal */
  --primary-hover: #2a4f7d;        /* Azul marino hover */
  --primary-light: #3b5f8a;        /* Azul marino claro */
  
  --secondary-color: #0891b2;      /* Azul cyan - Acciones secundarias */
  --secondary-hover: #0aa5c9;      /* Azul cyan hover */
  --secondary-light: #22d3ee;      /* Azul cyan claro */
  
  --success-color: #059669;        /* Verde esmeralda - Éxito/Agregar */
  --success-hover: #047857;        /* Verde esmeralda hover */
  --success-light: #10b981;        /* Verde esmeralda claro */
  
  --warning-color: #f59e0b;        /* Ámbar - Modificar/Advertencia */
  --warning-hover: #d97706;        /* Ámbar hover */
  --warning-light: #fbbf24;        /* Ámbar claro */
  
  --danger-color: #dc2626;         /* Rojo - Eliminar/Peligro */
  --danger-hover: #b91c1c;         /* Rojo hover */
  --danger-light: #ef4444;         /* Rojo claro */
  
  --info-color: #6366f1;           /* Índigo - Información/Búsqueda */
  --info-hover: #4f46e5;           /* Índigo hover */
  --info-light: #818cf8;           /* Índigo claro */
  
  --purple-color: #9333ea;         /* Púrpura - Búsqueda avanzada */
  --purple-hover: #7c3aed;         /* Púrpura hover */
  --purple-light: #a855f7;         /* Púrpura claro */
  
  /* Fondos y superficies */
  --background-color: #f8fafc;     /* Gris muy claro */
  --surface-color: #ffffff;        /* Blanco puro para cards */
  --surface-hover: #f9fafb;        /* Superficie hover */
  
  /* Textos con mejor contraste */
  --text-primary: #1e293b;         /* Gris oscuro */
  --text-secondary: #64748b;       /* Gris medio */
  --text-muted: #94a3b8;          /* Gris claro */
  --text-white: #ffffff;           /* Blanco */
  
  /* Bordes */
  --border-color: #e2e8f0;         /* Borde sutil */
  --border-hover: #cbd5e1;         /* Borde hover */
  
  /* Sombras mejoradas */
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Radios de borde */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Transiciones */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===========================
   Estilos Base
   =========================== */

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--background-color);
  color: var(--text-primary);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Patrón de fondo sutil */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(30, 58, 95, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(8, 145, 178, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(99, 102, 241, 0.02) 0%, transparent 50%);
  pointer-events: none;
  z-index: 1;
}

.container {
  position: relative;
  z-index: 2;
  padding: 2rem;
  max-width: 1400px;
}

/* ===========================
   Cards y Contenedores
   =========================== */

.card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

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

.card-header {
  background: linear-gradient(to bottom, var(--surface-color), var(--surface-hover));
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
  padding: 1.25rem 1.5rem;
  color: var(--text-primary);
  font-size: 1.125rem;
}

/* ===========================
   Botones
   =========================== */

.btn {
  border-radius: var(--radius-md);
  padding: 0.625rem 1.25rem;
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 1.5;
  transition: all var(--transition-base);
  text-transform: none;
  letter-spacing: 0.025em;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.98);
}

.btn i {
  font-size: 1rem;
}

/* Variantes de botones */
.btn-primary {
  background: var(--primary-color);
  color: var(--text-white);
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover {
  background: var(--primary-hover);
  color: var(--text-white);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-primary:focus {
  background: var(--primary-hover);
  color: var(--text-white);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.2);
}

.btn-secondary {
  background: var(--secondary-color);
  color: var(--text-white);
  box-shadow: var(--shadow-xs);
}

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

.btn-success {
  background: var(--success-color);
  color: var(--text-white);
  box-shadow: var(--shadow-xs);
}

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

.btn-danger {
  background: var(--danger-color);
  color: var(--text-white);
  box-shadow: var(--shadow-xs);
}

.btn-danger:hover {
  background: var(--danger-hover);
  color: var(--text-white);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-info {
  background: var(--info-color);
  color: var(--text-white);
  box-shadow: var(--shadow-xs);
}

.btn-info:hover {
  background: var(--info-hover);
  color: var(--text-white);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-warning {
  background: var(--warning-color);
  color: var(--text-white);
  box-shadow: var(--shadow-xs);
}

.btn-warning:hover {
  background: var(--warning-hover);
  color: var(--text-white);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-dark {
  background: var(--text-primary);
  color: var(--text-white);
  box-shadow: var(--shadow-xs);
}

.btn-dark:hover {
  background: var(--primary-color);
  color: var(--text-white);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-purple {
  background: var(--purple-color);
  color: var(--text-white);
  box-shadow: var(--shadow-xs);
}

.btn-purple:hover {
  background: var(--purple-hover);
  color: var(--text-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-purple:focus {
  box-shadow: 0 0 0 3px rgba(147, 51, 234, 0.2);
}

/* Botones outline */
.btn-outline-primary {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

.btn-outline-primary:hover {
  background: var(--primary-color);
  color: var(--text-white);
  border-color: var(--primary-color);
}

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

.btn-outline-secondary:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

/* Tamaños de botones */
.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

/* ===========================
   Formularios
   =========================== */

.form-control,
.form-select {
  border-radius: var(--radius-md);
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  border: 1px solid var(--border-color);
  background: var(--surface-color);
  transition: all var(--transition-base);
  color: var(--text-primary);
  width: 100%;
}

.form-control:hover,
.form-select:hover {
  border-color: var(--border-hover);
}

.form-control:focus,
.form-select:focus {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  border-color: var(--info-color);
  outline: none;
  background: var(--surface-color);
}

.form-control::placeholder {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.form-label {
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: 0.375rem;
  color: var(--text-primary);
  letter-spacing: 0.025em;
}

/* Campos resaltados */
.input-highlight-orange {
  border: 2px solid var(--warning-light);
  background-color: rgba(245, 158, 11, 0.05);
}

.input-highlight-orange:focus {
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
  border-color: var(--warning-color);
  background-color: rgba(245, 158, 11, 0.08);
}

.input-highlight-blue {
  border: 2px solid var(--info-light);
  background-color: rgba(99, 102, 241, 0.05);
}

.input-highlight-blue:focus {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
  border-color: var(--info-color);
  background-color: rgba(99, 102, 241, 0.08);
}

/* Campos de código de barras */
#codigo, #codigoEscaneo, #codigoPedido {
  font-family: 'Courier New', monospace;
  font-size: 1rem;
  letter-spacing: 0.05em;
}

#codigo:focus, #codigoEscaneo:focus, #codigoPedido:focus {
  background-color: rgba(99, 102, 241, 0.03);
  border-color: var(--info-color);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
  transform: scale(1.02);
}

/* ===========================
   Tablas
   =========================== */

.table {
  width: 100%;
  margin-bottom: 0;
  color: var(--text-primary);
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.875rem;
}

.table th {
  background-color: var(--surface-hover);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 0.875rem 1rem;
  border-bottom: 2px solid var(--border-color);
  color: var(--text-secondary);
  white-space: nowrap;
}

.table td {
  padding: 0.875rem 1rem;
  vertical-align: middle;
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-fast);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(248, 250, 252, 0.5);
}

.table-hover tbody tr {
  cursor: pointer;
  transition: all var(--transition-fast);
}

.table-hover tbody tr:hover {
  background-color: var(--surface-hover);
  transform: scale(1.01);
  box-shadow: var(--shadow-xs);
}

.table-responsive {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  border: 1px solid var(--border-color);
}

/* ===========================
   Navbar
   =========================== */

.navbar-custom {
  background: var(--surface-color);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.95);
}

.navbar-brand {
  font-weight: 800;
  color: var(--primary-color);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-brand:hover {
  color: var(--primary-hover);
}

/* ===========================
   Alertas
   =========================== */

.alert {
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  box-shadow: var(--shadow-xs);
  padding: 1rem 1.25rem;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert i {
  font-size: 1.125rem;
  flex-shrink: 0;
}

.alert-success {
  background-color: rgba(5, 150, 105, 0.1);
  color: var(--success-color);
  border-color: rgba(5, 150, 105, 0.2);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--warning-hover);
  border-color: rgba(245, 158, 11, 0.2);
}

.alert-danger {
  background-color: rgba(220, 38, 38, 0.1);
  color: var(--danger-color);
  border-color: rgba(220, 38, 38, 0.2);
}

.alert-info {
  background-color: rgba(99, 102, 241, 0.1);
  color: var(--info-hover);
  border-color: rgba(99, 102, 241, 0.2);
}

/* ===========================
   Badges
   =========================== */

.badge {
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.025em;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.badge i {
  font-size: 0.875rem;
}

.bg-primary {
  background-color: var(--primary-color) !important;
}

.bg-success {
  background-color: var(--success-color) !important;
}

.bg-danger {
  background-color: var(--danger-color) !important;
}

.bg-warning {
  background-color: var(--warning-color) !important;
}

.bg-info {
  background-color: var(--info-color) !important;
}

.bg-secondary {
  background-color: var(--secondary-color) !important;
}

/* ===========================
   Animaciones
   =========================== */

.animate-fade-in {
  animation: fadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-slide-up {
  animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-scale-in {
  animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeIn {
  from { 
    opacity: 0;
    transform: translateY(4px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from { 
    transform: translateY(20px); 
    opacity: 0; 
  }
  to { 
    transform: translateY(0); 
    opacity: 1; 
  }
}

@keyframes scaleIn {
  from { 
    transform: scale(0.95); 
    opacity: 0; 
  }
  to { 
    transform: scale(1); 
    opacity: 1; 
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
  }
}

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

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

/* ===========================
   Modo Oscuro
   =========================== */

@media (prefers-color-scheme: dark) {
  :root {
    /* Colores oscuros profesionales */
    --primary-color: #3b82f6;
    --primary-hover: #60a5fa;
    --primary-light: #93bbfd;
    
    --secondary-color: #06b6d4;
    --secondary-hover: #22d3ee;
    --secondary-light: #67e8f9;
    
    --success-color: #10b981;
    --success-hover: #34d399;
    --success-light: #6ee7b7;
    
    --warning-color: #f59e0b;
    --warning-hover: #fbbf24;
    --warning-light: #fcd34d;
    
    --danger-color: #ef4444;
    --danger-hover: #f87171;
    --danger-light: #fca5a5;
    
    --info-color: #8b5cf6;
    --info-hover: #a78bfa;
    --info-light: #c4b5fd;
    
    --purple-color: #a855f7;
    --purple-hover: #c084fc;
    --purple-light: #d8b4fe;
    
    /* Fondos oscuros */
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --surface-hover: #334155;
    
    /* Textos oscuros */
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-white: #ffffff;
    
    /* Bordes oscuros */
    --border-color: #334155;
    --border-hover: #475569;
  }

  body::before {
    background-image: 
      radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
      radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
      radial-gradient(circle at 40% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
  }

  .navbar-custom {
    background-color: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(10px);
  }

  .card {
    background: var(--surface-color);
    border-color: var(--border-color);
  }

  .table th {
    background-color: var(--surface-hover);
    color: var(--text-secondary);
  }

  .table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(51, 65, 85, 0.3);
  }

  .form-control,
  .form-select {
    background: var(--surface-color);
    color: var(--text-primary);
    border-color: var(--border-color);
  }
  
  .form-control:focus,
  .form-select:focus {
    background: var(--surface-color);
    border-color: var(--info-color);
  }
  
  .input-highlight-orange {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-light);
  }
  
  .input-highlight-blue {
    background-color: rgba(139, 92, 246, 0.1);
    border-color: var(--info-light);
  }
}

/* ===========================
   Utilidades
   =========================== */

.loading-shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(99, 102, 241, 0.1) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.spinner-border {
  width: 2.5rem;
  height: 2.5rem;
  border-width: 0.25rem;
}

.pulse-effect {
  animation: pulse 1.5s infinite;
}

.form-control.success-flash {
  animation: successFlash 0.5s ease;
}

@keyframes successFlash {
  0%, 100% {
    background-color: var(--surface-color);
  }
  50% {
    background-color: rgba(5, 150, 105, 0.2);
    border-color: var(--success-color);
  }
}

.form-control.error-flash {
  animation: errorFlash 0.5s ease;
}

@keyframes errorFlash {
  0%, 100% {
    background-color: var(--surface-color);
  }
  50% {
    background-color: rgba(220, 38, 38, 0.2);
    border-color: var(--danger-color);
  }
}

/* Estados de hover y focus mejorados */
*:focus-visible {
  outline: 2px solid var(--info-color);
  outline-offset: 2px;
}

/* Transiciones suaves para elementos interactivos */
a,
button,
input,
select,
textarea,
.card,
.list-group-item,
.table tbody tr {
  transition: all var(--transition-base);
}

/* Efectos de scroll suave */
html {
  scroll-behavior: smooth;
}

/* Selección de texto personalizada */
::selection {
  background-color: var(--info-light);
  color: var(--text-white);
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--surface-hover);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: var(--radius-sm);
  border: 2px solid var(--surface-hover);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ===========================
   Responsive
   =========================== */

@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .card {
    margin-bottom: 1rem;
  }

  .card-header {
    padding: 1rem;
  }

  .card-body {
    padding: 1rem;
  }

  .table {
    font-size: 0.8125rem;
  }

  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
  }

  .btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  h3 {
    font-size: 1.125rem;
  }
}

/* ===========================
   Mejoras para pantallas táctiles
   =========================== */

@media (hover: none) {
  .btn,
  .form-control,
  .form-select {
    -webkit-tap-highlight-color: transparent;
  }
}