/* ========================================
   SISTEMA DE ALMACÉN MULTIEMPRESA
   Autor: GitHub Copilot
   Fecha: Septiembre 2025
   ======================================== */

/* Import de CDNs */
@import url('https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/css/bootstrap.min.css');
@import url('https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* Variables CSS personalizadas */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --success-color: #059669;
  --warning-color: #d97706;
  --danger-color: #dc2626;
  --info-color: #0891b2;
  --dark-color: #1e293b;
  --light-color: #f8fafc;
  
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 70px;
  --header-height: 70px;
  
  --border-radius: 8px;
  --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset y configuración base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: #f1f5f9;
}

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

.app-container {
  display: flex;
  min-height: 100vh;
}

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--primary-color) 0%, #1e40af 100%);
  color: white;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 1000;
  transition: var(--transition);
  overflow-y: auto;
  box-shadow: var(--box-shadow);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-header {
  padding: 1.5rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.sidebar-logo {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

.sidebar.collapsed .sidebar-logo {
  font-size: 1.2rem;
}

.sidebar-subtitle {
  font-size: 0.875rem;
  opacity: 0.8;
  transition: var(--transition);
}

.sidebar.collapsed .sidebar-subtitle {
  display: none;
}

.sidebar-menu {
  padding: 1rem 0;
  list-style: none;
}

.sidebar-menu li {
  margin-bottom: 0.25rem;
}

.sidebar-menu a {
  display: flex;
  align-items: center;
  padding: 0.875rem 1.5rem;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

.sidebar-menu a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  text-decoration: none;
}

.sidebar-menu a.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: white;
}

.sidebar-menu a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: white;
}

.sidebar-menu i {
  width: 20px;
  margin-right: 0.75rem;
  text-align: center;
  flex-shrink: 0;
}

.sidebar.collapsed .sidebar-menu i {
  margin-right: 0;
}

.sidebar-menu .menu-text {
  transition: var(--transition);
}

.sidebar.collapsed .menu-text {
  display: none;
}

/* Toggle Button */
.sidebar-toggle {
  position: absolute;
  top: 50%;
  right: -15px;
  transform: translateY(-50%);
  background: white;
  color: var(--primary-color);
  border: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  cursor: pointer;
}

.sidebar-toggle:hover {
  background-color: var(--light-color);
}

/* ========================================
   MAIN CONTENT
   ======================================== */

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  transition: var(--transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content.expanded {
  margin-left: var(--sidebar-collapsed-width);
}

/* ========================================
   HEADER
   ======================================== */

.app-header {
  background: white;
  height: var(--header-height);
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-left {
  display: flex;
  align-items: center;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--dark-color);
  margin: 0;
}

.breadcrumb-nav {
  margin-left: 1rem;
  font-size: 0.875rem;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-notifications,
.header-user {
  position: relative;
}

.header-btn {
  background: none;
  border: none;
  color: var(--secondary-color);
  font-size: 1.25rem;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
}

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

.notification-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  background: var(--danger-color);
  color: white;
  font-size: 0.75rem;
  padding: 0.125rem 0.375rem;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--light-color);
}

/* ========================================
   CONTENT AREA
   ======================================== */

.content-area {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
}

/* ========================================
   CARDS Y COMPONENTES
   ======================================== */

.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.card:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.card-header {
  background: white;
  border-bottom: 1px solid #e2e8f0;
  padding: 1.5rem;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0;
}

.card-body {
  padding: 1.5rem;
}

/* Stats Cards */
.stats-card {
  background: white;
  padding: 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.stats-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.stats-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin-right: 1rem;
  flex-shrink: 0;
}

.stats-content h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--dark-color);
}

.stats-content p {
  font-size: 0.875rem;
  color: var(--secondary-color);
  margin-bottom: 0;
}

/* ========================================
   BOTONES PERSONALIZADOS
   ======================================== */

.btn {
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

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

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

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

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

.btn-info {
  background-color: var(--info-color);
  border-color: var(--info-color);
}

/* ========================================
   FORMULARIOS
   ======================================== */

.form-control {
  border-radius: var(--border-radius);
  border: 1px solid #d1d5db;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group {
  border-radius: var(--border-radius);
  overflow: hidden;
}

/* ========================================
   TABLAS
   ======================================== */

.table {
  margin-bottom: 0;
}

.table th {
  background-color: var(--light-color);
  font-weight: 600;
  color: var(--dark-color);
  border-bottom: 2px solid #e2e8f0;
}

.table td {
  vertical-align: middle;
}

.table-responsive {
  border-radius: var(--border-radius);
  overflow: hidden;
}

/* ========================================
   MODAL PERSONALIZADO
   ======================================== */

.modal-content {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-header {
  background-color: var(--light-color);
  border-bottom: 1px solid #e2e8f0;
}

.modal-title {
  font-weight: 600;
}

/* ========================================
   ALERTAS PERSONALIZADAS
   ======================================== */

.alert {
  border: none;
  border-radius: var(--border-radius);
  border-left: 4px solid;
}

.alert-primary {
  background-color: rgba(37, 99, 235, 0.1);
  border-left-color: var(--primary-color);
  color: var(--primary-color);
}

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

.alert-warning {
  background-color: rgba(217, 119, 6, 0.1);
  border-left-color: var(--warning-color);
  color: var(--warning-color);
}

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

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.mobile-open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .content-area {
    padding: 1rem;
  }
  
  .app-header {
    padding: 0 1rem;
  }
  
  .page-title {
    font-size: 1.25rem;
  }
  
  .breadcrumb-nav {
    display: none;
  }
  
  .stats-card {
    margin-bottom: 1rem;
  }
}

@media (max-width: 576px) {
  .stats-card {
    flex-direction: column;
    text-align: center;
  }
  
  .stats-icon {
    margin-right: 0;
    margin-bottom: 1rem;
  }
}

/* ========================================
   ANIMACIONES
   ======================================== */

.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

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

.slide-in-right {
  animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

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

.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-info { color: var(--info-color) !important; }

.bg-primary { background-color: var(--primary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }
.bg-info { background-color: var(--info-color) !important; }

.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow { box-shadow: var(--box-shadow); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }

.rounded { border-radius: var(--border-radius) !important; }
.rounded-lg { border-radius: calc(var(--border-radius) * 1.5) !important; }

/* ========================================
   LOADING SPINNER
   ======================================== */

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  .sidebar,
  .app-header,
  .btn,
  .no-print {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0 !important;
  }
  
  .content-area {
    padding: 0 !important;
  }
}