:root { 
  --primary-color: #2c3e50; 
  --secondary-color: #3498db; 
  --accent-color: #e74c3c; 
  --success-color: #27ae60; 
  --light-color: #ecf0f1; 
  --dark-color: #2c3e50; 
  --gray-color: #95a5a6; 
  --warning-color: #f39c12; 
} 

* { 
  margin: 0; 
  padding: 0; 
  box-sizing: border-box; 
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
} 

body { 
  background-color: #f5f7fa; 
  color: var(--dark-color); 
  overflow-x: hidden; 
} 

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

.sidebar { 
  width: 260px; 
  background-color: var(--primary-color); 
  color: white; 
  padding: 20px 0; 
  box-shadow: 2px 0 5px rgba(0,0,0,0.1); 
  position: fixed; 
  height: 100vh; 
  overflow-y: auto; 
  z-index: 1000; 
  transition: transform 0.3s ease; 
} 

.sidebar.collapsed { 
  transform: translateX(-100%); 
} 

.logo { 
  text-align: center; 
  padding: 20px; 
  border-bottom: 1px solid rgba(255,255,255,0.1); 
  margin-bottom: 20px; 
} 

.logo h1 { 
  font-size: 1.8rem; 
  margin-bottom: 5px; 
} 

.logo p { 
  color: var(--gray-color); 
  font-size: 0.9rem; 
} 

.nav-menu { 
  list-style: none; 
} 

.nav-item { 
  margin-bottom: 5px; 
} 

.nav-link { 
  display: flex; 
  align-items: center; 
  padding: 12px 20px; 
  color: white; 
  text-decoration: none; 
  transition: all 0.3s; 
} 

.nav-link:hover, .nav-link.active { 
  background-color: rgba(255,255,255,0.1); 
  border-left: 3px solid var(--secondary-color); 
} 

.nav-link i { 
  margin-right: 10px; 
  width: 20px; 
  text-align: center; 
} 

.main-content { 
  flex: 1; 
  padding: 20px; 
  margin-left: 260px; 
  overflow-y: auto; 
  transition: margin-left 0.3s ease; 
} 

.main-content.expanded { 
  margin-left: 0; 
} 

.header { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  margin-bottom: 30px; 
  padding-bottom: 15px; 
  border-bottom: 1px solid #ddd; 
} 

.header h2 { 
  font-size: 1.8rem; 
  color: var(--primary-color); 
} 

.user-info { 
  display: flex; 
  align-items: center; 
} 

.user-info .user-icon { 
  width: 40px; 
  height: 40px; 
  border-radius: 50%; 
  background-color: var(--secondary-color); 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin-right: 10px; 
  color: white; 
} 

.user-info span { 
  font-weight: 500; 
} 

.user-role { 
  background-color: var(--secondary-color); 
  color: white; 
  padding: 2px 8px; 
  border-radius: 12px; 
  font-size: 0.75rem; 
  margin-left: 8px; 
} 

.logout-btn { 
  background: var(--accent-color); 
  color: white; 
  border: none; 
  padding: 8px 15px; 
  border-radius: 4px; 
  cursor: pointer; 
  margin-left: 15px; 
  transition: background 0.3s; 
} 

.logout-btn:hover { 
  background: #c0392b; 
} 

.mobile-menu-btn { 
  display: none; 
  background: var(--primary-color); 
  color: white; 
  border: none; 
  padding: 10px 15px; 
  border-radius: 4px; 
  cursor: pointer; 
  font-size: 1.2rem; 
  position: fixed; 
  top: 20px; 
  left: 20px; 
  z-index: 1001; 
  box-shadow: 0 2px 5px rgba(0,0,0,0.2); 
} 

.pos-container { 
  display: grid; 
  grid-template-columns: 1fr 400px; 
  gap: 20px; 
} 

.products-section { 
  background: white; 
  border-radius: 8px; 
  padding: 20px; 
  box-shadow: 0 2px 10px rgba(0,0,0,0.05); 
} 

.section-header { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  margin-bottom: 20px; 
} 

.section-header h3 { 
  font-size: 1.3rem; 
  color: var(--dark-color); 
} 

.search-bar { 
  display: flex; 
  margin-bottom: 20px; 
} 

.search-bar input { 
  flex: 1; 
  padding: 12px 15px; 
  border: 1px solid #ddd; 
  border-radius: 4px 0 4px 0; 
  font-size: 1rem; 
} 

.search-bar button { 
  background: var(--secondary-color); 
  color: white; 
  border: none; 
  padding: 0 15px; 
  border-radius: 0 4px 4px 0; 
  cursor: pointer; 
} 

.products-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); 
  gap: 15px; 
} 

.product-card { 
  border: 1px solid #eee; 
  border-radius: 8px; 
  padding: 15px; 
  text-align: center; 
  cursor: pointer; 
  transition: all 0.3s; 
} 

.product-card:hover { 
  box-shadow: 0 5px 15px rgba(0,0,0,0.1); 
  transform: translateY(-3px); 
} 

.product-card .product-img { 
  height: 80px; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  margin-bottom: 10px; 
  background-color: #f9f9f9; 
  border-radius: 4px; 
} 

.product-card .product-img i { 
  font-size: 2.5rem; 
  color: var(--secondary-color); 
} 

.product-card h4 { 
  font-size: 0.9rem; 
  margin-bottom: 5px; 
} 

.product-card .price { 
  font-weight: 700; 
  color: var(--accent-color); 
} 

.product-card .stock { 
  font-size: 0.8rem; 
  color: var(--gray-color); 
} 

.product-card .expiry-warning { 
  font-size: 0.75rem; 
  color: var(--warning-color); 
  margin-top: 5px; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
} 

.product-card .expiry-warning i { 
  margin-right: 4px; 
} 

.cart-section { 
  background: white; 
  border-radius: 8px; 
  padding: 20px; 
  box-shadow: 0 2px 10px rgba(0,0,0,0.05); 
  height: fit-content; 
} 

.cart-section h3 { 
  color: var(--primary-color); 
  margin-bottom: 20px; 
} 

.cart-items { 
  margin-bottom: 20px; 
  max-height: 400px; 
  overflow-y: auto; 
} 

.cart-item { 
  display: flex; 
  justify-content: space-between; 
  padding: 12px 0; 
  border-bottom: 1px solid #eee; 
} 

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

.cart-item-info { 
  flex: 1; 
} 

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

.cart-item-price { 
  color: var(--gray-color); 
  font-size: 0.9rem; 
} 

.cart-item-qty { 
  display: flex; 
  align-items: center; 
  margin-top: 5px; 
} 

.cart-item-qty button { 
  background: #f0f0f0; 
  border: none; 
  width: 24px; 
  height: 24px; 
  border-radius: 4px; 
  cursor: pointer; 
} 

.cart-item-qty input { 
  width: 40px; 
  text-align: center; 
  border: 1px solid #eee; 
  margin: 0 5px; 
} 

.cart-item-total { 
  font-weight: 700; 
  color: var(--dark-color); 
} 

.cart-summary { 
  border-top: 1px solid #eee; 
  padding-top: 15px; 
  margin-top: 15px; 
} 

.summary-row { 
  display: flex; 
  justify-content: space-between; 
  margin-bottom: 10px; 
} 

.summary-row.total { 
  font-weight: 700; 
  font-size: 1.1rem; 
  color: var(--dark-color); 
  border-top: 1px solid #eee; 
  padding-top: 10px; 
} 

.cart-actions { 
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 10px; 
  margin-top: 20px; 
} 

.btn { 
  padding: 12px 15px; 
  border: none; 
  border-radius: 4px; 
  cursor: pointer; 
  font-weight: 500; 
  text-align: center; 
  transition: all 0.3s; 
  position: relative; 
  overflow: hidden; 
} 

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

.btn-primary:hover { 
  background: #2980b9; 
} 

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

.btn-success:hover { 
  background: #229954; 
} 

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

.btn-danger:hover { 
  background: #c0392b; 
} 

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

.btn-outline:hover { 
  background: #f0f0f0; 
} 

.btn:disabled { 
  opacity: 0.6; 
  cursor: not-allowed; 
} 

.btn.loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  border: 2px solid transparent;
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s ease-in-out infinite;
}

.inventory-container { 
  background: white; 
  border-radius: 8px; 
  padding: 20px; 
  box-shadow: 0 2px 10px rgba(0,0,0,0.05); 
  position: relative;
} 

.inventory-header { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  margin-bottom: 20px; 
} 

.inventory-value { 
  background: #f8f9fa; 
  border-radius: 8px; 
  padding: 15px; 
  margin-bottom: 20px; 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
} 

.inventory-value h3 { 
  margin: 0; 
  color: var(--dark-color); 
} 

.inventory-value .value { 
  font-size: 1.5rem; 
  font-weight: 700; 
  color: var(--success-color); 
} 

.inventory-table { 
  width: 100%; 
  border-collapse: collapse; 
} 

.inventory-table th, .inventory-table td { 
  padding: 12px 15px; 
  text-align: left; 
  border-bottom: 1px solid #eee; 
} 

.inventory-table th { 
  background-color: #f8f9fa; 
  font-weight: 600; 
  color: var(--dark-color); 
} 

.inventory-table tr:hover { 
  background-color: #f8f9fa; 
} 

.inventory-table tr.expiring-soon { 
  background-color: #fff8e1; 
} 

.inventory-table tr.expired { 
  background-color: #ffebee; 
} 

.stock-badge { 
  padding: 4px 8px; 
  border-radius: 12px; 
  font-size: 0.8rem; 
  font-weight: 500; 
} 

.stock-high { 
  background-color: #d4edda; 
  color: #155724; 
} 

.stock-medium { 
  background-color: #fff3cd; 
  color: #856404; 
} 

.stock-low { 
  background-color: #f8d7da; 
  color: #721c24; 
} 

.expiry-badge { 
  padding: 4px 8px; 
  border-radius: 12px; 
  font-size: 0.8rem; 
  font-weight: 500; 
} 

.expiry-good { 
  background-color: #d4edda; 
  color: #155724; 
} 

.expiry-warning { 
  background-color: #fff3cd; 
  color: #856404; 
} 

.expiry-expired { 
  background-color: #f8d7da; 
  color: #721c24; 
} 

.action-buttons { 
  display: flex; 
  gap: 5px; 
} 

.action-buttons button { 
  padding: 5px 8px; 
  border: none; 
  border-radius: 4px; 
  cursor: pointer; 
  color: white; 
} 

.btn-edit { 
  background: var(--secondary-color); 
} 

.btn-delete { 
  background: var(--accent-color); 
} 

.modal { 
  display: none; 
  position: fixed; 
  top: 0; 
  left: 0; 
  width: 100%; 
  height: 100%; 
  background-color: rgba(0,0,0,0.5); 
  z-index: 1000; 
  align-items: center; 
  justify-content: center; 
} 

.modal-content { 
  background: white; 
  border-radius: 8px; 
  width: 90%; 
  max-width: 500px; 
  max-height: 90vh; 
  overflow-y: auto; 
  box-shadow: 0 5px 15px rgba(0,0,0,0.2); 
} 

.modal-header { 
  padding: 15px 20px; 
  border-bottom: 1px solid #eee; 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
} 

.modal-header h3 { 
  margin: 0; 
  color: var(--dark-color); 
} 

.modal-close { 
  background: none; 
  border: none; 
  font-size: 1.5rem; 
  cursor: pointer; 
  color: var(--gray-color); 
} 

.modal-body { 
  padding: 20px; 
} 

.form-group { 
  margin-bottom: 15px; 
} 

.form-group label { 
  display: block; 
  margin-bottom: 5px; 
  font-weight: 500; 
} 

.form-group input, .form-group select, .form-group textarea { 
  width: 100%; 
  padding: 10px 12px; 
  border: 1px solid #ddd; 
  border-radius: 4px; 
  font-size: 1rem; 
} 

.modal-footer { 
  padding: 15px 20px; 
  border-top: 1px solid #eee; 
  display: flex; 
  justify-content: flex-end; 
  gap: 10px; 
} 

.receipt { 
  background: white; 
  padding: 20px; 
  border-radius: 8px; 
  max-width: 400px; 
  margin: 0 auto; 
  box-shadow: 0 2px 10px rgba(0,0,0,0.1); 
  font-family: 'Courier New', monospace; 
} 

.receipt-header { 
  text-align: center; 
  margin-bottom: 20px; 
  border-bottom: 1px dashed #ccc; 
  padding-bottom: 10px; 
} 

.receipt-header h2 { 
  margin-bottom: 5px; 
} 

.receipt-header p { 
  margin: 2px 0; 
  font-size: 0.9rem; 
} 

.receipt-items { 
  margin-bottom: 20px; 
} 

.receipt-item { 
  display: flex; 
  justify-content: space-between; 
  margin-bottom: 8px; 
} 

.receipt-footer { 
  border-top: 1px dashed #ccc; 
  padding-top: 10px; 
} 

.receipt-total { 
  display: flex; 
  justify-content: space-between; 
  font-weight: 700; 
  margin-bottom: 5px; 
} 

.receipt-actions { 
  margin-top: 20px; 
  display: flex; 
  gap: 10px; 
} 

.notification { 
  position: fixed; 
  top: 20px; 
  right: 20px; 
  padding: 15px 20px; 
  border-radius: 4px; 
  color: white; 
  box-shadow: 0 4px 12px rgba(0,0,0,0.15); 
  z-index: 2000; 
  display: none; 
  align-items: center; 
  transform: translateX(150%); 
  transition: transform 0.3s ease-out; 
} 

.notification.show { 
  transform: translateX(0); 
} 

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

.notification.error { 
  background: var(--accent-color); 
} 

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

.notification.info { 
  background: var(--secondary-color); 
} 

.notification i { 
  margin-right: 10px; 
  font-size: 1.2rem; 
} 

.login-container { 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  min-height: 100vh; 
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); 
} 

.login-card { 
  background: white; 
  border-radius: 10px; 
  box-shadow: 0 10px 30px rgba(0,0,0,0.2); 
  width: 400px; 
  padding: 40px; 
} 

.login-header { 
  text-align: center; 
  margin-bottom: 30px; 
} 

.login-header h1 { 
  color: var(--primary-color); 
  margin-bottom: 10px; 
} 

.login-header p { 
  color: var(--gray-color); 
} 

.login-tabs { 
  display: flex; 
  margin-bottom: 20px; 
  border-bottom: 1px solid #eee; 
} 

.login-tab { 
  flex: 1; 
  padding: 10px; 
  text-align: center; 
  cursor: pointer; 
  font-weight: 500; 
} 

.login-tab.active { 
  border-bottom: 2px solid var(--secondary-color); 
  color: var(--secondary-color); 
} 

.tab-content { 
  display: none; 
} 

.tab-content.active { 
  display: block; 
} 

.login-btn { 
  width: 100%; 
  padding: 12px; 
  background: var(--secondary-color); 
  color: white; 
  border: none; 
  border-radius: 4px; 
  font-size: 1rem; 
  font-weight: 600; 
  cursor: pointer; 
  transition: background 0.3s; 
} 

.login-btn:hover { 
  background: #2980b9; 
} 

.login-error { 
  color: var(--accent-color); 
  margin-top: 15px; 
  text-align: center; 
  display: none; 
} 

.user-management { 
  background: white; 
  border-radius: 8px; 
  padding: 20px; 
  box-shadow: 0 2px 10px rgba(0,0,0,0.05); 
  margin-bottom: 20px; 
} 

.user-info-card { 
  background: #f8f9fa; 
  border-radius: 8px; 
  padding: 20px; 
  margin-bottom: 20px; 
} 

.user-info-card h3 { 
  margin-bottom: 15px; 
} 

.user-info-card .info-row { 
  display: flex; 
  justify-content: space-between; 
  margin-bottom: 10px; 
  padding-bottom: 10px; 
  border-bottom: 1px solid #eee; 
} 

.user-info-card .info-row:last-child { 
  border-bottom: none; 
  margin-bottom: 0; 
  padding-bottom: 0; 
} 

.user-info-card .info-label { 
  font-weight: 600; 
  color: var(--dark-color); 
} 

.user-info-card .info-value { 
  color: var(--gray-color); 
} 

.empty-state { 
  text-align: center; 
  padding: 40px; 
  color: var(--gray-color); 
} 

.empty-state i { 
  font-size: 3rem; 
  margin-bottom: 15px; 
  color: #ddd; 
} 

.empty-state h3 { 
  margin-bottom: 10px; 
} 

.deleted-sales-section { 
  margin-top: 30px; 
  padding-top: 20px; 
  border-top: 1px dashed #ddd; 
} 

.deleted-sales-section h4 { 
  color: var(--accent-color); 
  margin-bottom: 15px; 
  display: flex; 
  align-items: center; 
} 

.deleted-sales-section h4 i { 
  margin-right: 8px; 
} 

.deleted-sales-table { 
  width: 100%; 
  border-collapse: collapse; 
  margin-top: 15px; 
} 

.deleted-sales-table th, .deleted-sales-table td { 
  padding: 10px 15px; 
  text-align: left; 
  border-bottom: 1px solid #eee; 
} 

.deleted-sales-table th { 
  background-color: #f8f9fa; 
  font-weight: 600; 
  color: var(--dark-color); 
} 

.deleted-sales-table tr { 
  background-color: #f9f9f9; 
} 

.deleted-badge { 
  background-color: var(--accent-color); 
  color: white; 
  padding: 2px 8px; 
  border-radius: 12px; 
  font-size: 0.75rem; 
  font-weight: 500; 
} 

.daily-report-controls { 
  background: #f8f9fa; 
  border-radius: 8px; 
  padding: 15px; 
  margin-bottom: 20px; 
  display: flex; 
  align-items: center; 
  gap: 15px; 
  flex-wrap: wrap; 
} 

.daily-report-controls label { 
  font-weight: 600; 
  color: var(--dark-color); 
} 

.daily-report-controls input { 
  padding: 8px 12px; 
  border: 1px solid #ddd; 
  border-radius: 4px; 
  font-size: 1rem; 
} 

.daily-report-controls button { 
  padding: 8px 15px; 
  background: var(--secondary-color); 
  color: white; 
  border: none; 
  border-radius: 4px; 
  cursor: pointer; 
} 

.daily-report-controls button:hover { 
  background: #2980b9; 
} 

.daily-summary { 
  display: grid; 
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); 
  gap: 15px; 
  margin-bottom: 20px; 
} 

.daily-summary-card { 
  background: white; 
  border-radius: 8px; 
  padding: 15px; 
  box-shadow: 0 2px 5px rgba(0,0,0,0.05); 
  text-align: center; 
} 

.daily-summary-card .value { 
  font-size: 1.8rem; 
  font-weight: 700; 
  color: var(--dark-color); 
  margin-bottom: 5px; 
} 

.daily-summary-card .label { 
  color: var(--gray-color); 
  font-size: 0.9rem; 
} 

.daily-sales-table { 
  width: 100%; 
  border-collapse: collapse; 
  margin-top: 15px; 
} 

.daily-sales-table th, .daily-sales-table td { 
  padding: 12px 15px; 
  text-align: left; 
  border-bottom: 1px solid #eee; 
} 

.daily-sales-table th { 
  background-color: #f8f9fa; 
  font-weight: 600; 
  color: var(--dark-color); 
} 

.daily-sales-table tr:hover { 
  background-color: #f8f9fa; 
} 

.report-section { 
  margin-bottom: 30px; 
} 

.report-section h3 { 
  margin-bottom: 15px; 
  color: var(--dark-color); 
  display: flex; 
  align-items: center; 
} 

.report-section h3 i { 
  margin-right: 8px; 
  color: var(--secondary-color); 
} 

.no-data { 
  text-align: center; 
  padding: 20px; 
  color: var(--gray-color); 
  font-style: italic; 
} 

.install-btn { 
  position: fixed; 
  bottom: 20px; 
  right: 20px; 
  background: var(--success-color); 
  color: white; 
  border: none; 
  padding: 12px 20px; 
  border-radius: 50px; 
  font-weight: 600; 
  cursor: pointer; 
  box-shadow: 0 4px 12px rgba(0,0,0,0.15); 
  display: none; 
  align-items: center; 
  gap: 8px; 
  z-index: 999; 
  transition: all 0.3s ease; 
} 

.install-btn:hover { 
  transform: translateY(-2px); 
  box-shadow: 0 6px 16px rgba(0,0,0,0.2); 
} 

.install-btn i { 
  font-size: 1.2rem; 
} 

.offline-indicator { 
  position: fixed; 
  top: 0; 
  left: 0; 
  right: 0; 
  background: var(--warning-color); 
  color: white; 
  text-align: center; 
  padding: 10px; 
  font-weight: 600; 
  display: none; 
  z-index: 1002; 
} 

.offline-indicator.show { 
  display: block; 
} 

.sync-status { 
  position: fixed; 
  bottom: 20px; 
  left: 20px; 
  background: var(--success-color); 
  color: white; 
  padding: 8px 15px; 
  border-radius: 4px; 
  font-size: 0.8rem; 
  display: none; 
  z-index: 999; 
} 

.sync-status.show { 
  display: block; 
} 

.sync-status.syncing { 
  background: var(--warning-color); 
} 

.sync-status.error { 
  background: var(--accent-color); 
} 

.sync-status i { 
  animation: spin 1s linear infinite; 
} 

.users-container { 
  background: white; 
  border-radius: 8px; 
  padding: 20px; 
  box-shadow: 0 2px 10px rgba(0,0,0,0.05); 
  margin-top: 20px; 
} 

.users-container h3 { 
  margin-bottom: 15px; 
  color: var(--dark-color); 
} 

.users-list { 
  display: grid; 
  gap: 15px; 
} 

.user-card { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  padding: 15px; 
  background: #f8f9fa; 
  border-radius: 8px; 
} 

.user-card .user-info { 
  display: flex; 
  flex-direction: column; 
} 

.user-card .user-info strong { 
  margin-bottom: 5px; 
} 

.user-card .user-info span { 
  color: var(--gray-color); 
  font-size: 0.9rem; 
} 

.role-badge { 
  padding: 4px 8px; 
  border-radius: 12px; 
  font-size: 0.75rem; 
  font-weight: 500; 
  margin-top: 5px; 
  display: inline-block; 
} 

.role-badge.admin { 
  background-color: #d4edda; 
  color: #155724; 
} 

.role-badge.cashier { 
  background-color: #d1ecf1; 
  color: #0c5460; 
} 

/* New styles for expenses, purchases, and analytics */
.expense-summary, .purchase-summary, .analytics-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.summary-card {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.summary-card h3 {
  margin: 0 0 0.5rem 0;
  color: #666;
  font-size: 0.9rem;
}

.summary-card p {
  margin: 0;
  font-size: 1.5rem;
  font-weight: bold;
  color: #333;
}

.analytics-charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.chart-container {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.chart-container h3 {
  margin: 0 0 1rem 0;
  color: #333;
}

.simple-bar-chart {
  width: 100%;
}

.bar-item {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
}

.bar-label {
  width: 100px;
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bar-container {
  flex: 1;
  height: 20px;
  background: #f0f0f0;
  border-radius: 4px;
  margin: 0 0.5rem;
}

.bar {
  height: 100%;
  background: #4a6fdc;
  border-radius: 4px;
}

.bar-value {
  width: 80px;
  text-align: right;
  font-size: 0.8rem;
}

.simple-line-chart {
  display: flex;
  height: 200px;
  width: 100%;
}

.chart-y-axis {
  width: 80px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0 0.5rem;
}

.y-label {
  font-size: 0.7rem;
  text-align: right;
}

.chart-content {
  flex: 1;
  position: relative;
}

.chart-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.grid-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: #e0e0e0;
}

.chart-data {
  position: relative;
  height: 100%;
}

.chart-point {
  position: absolute;
  transform: translateX(-50%);
}

.point {
  width: 8px;
  height: 8px;
  background: #4a6fdc;
  border-radius: 50%;
  margin: 0 auto;
}

.point-label {
  font-size: 0.7rem;
  text-align: center;
  margin-top: 0.5rem;
  transform: rotate(-45deg);
  transform-origin: left top;
}

.analytics-alerts {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.analytics-alerts h3 {
  margin-bottom: 1rem;
  color: #333;
  display: flex;
  align-items: center;
}

.tabs {
  display: flex;
  margin-bottom: 1rem;
  border-bottom: 1px solid #e0e0e0;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  border-bottom-color: #4a6fdc;
  color: #4a6fdc;
}

.tab-content {
  position: relative;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

.alert-item {
  display: flex;
  align-items: center;
  padding: 0.75rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
  background: #f8f9fa;
}

.alert-item.low_stock {
  border-left: 4px solid #ffc107;
}

.alert-item.expiry_warning {
  border-left: 4px solid #fd7e14;
}

.alert-item.discrepancy {
  border-left: 4px solid #dc3545;
}

.alert-icon {
  margin-right: 0.75rem;
  color: #666;
}

.alert-content {
  flex: 1;
}

.alert-message {
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.alert-time {
  font-size: 0.8rem;
  color: #666;
}

.alert-actions {
  margin-left: 0.75rem;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
}

.table-container {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

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

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid #e0e0e0;
}

.data-table th {
  font-weight: 600;
  color: #666;
}

.highlight {
  background-color: #fff3cd !important;
  animation: highlight-fade 3s ease-in-out;
}

@keyframes highlight-fade {
  0% { background-color: #fff3cd; }
  100% { background-color: transparent; }
}

.page-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.page-header h2 {
  margin: 0;
}

.modal-loading {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

@media (max-width: 992px) { 
  .pos-container { 
      grid-template-columns: 1fr; 
  } 
  .cart-section { 
      order: -1; 
  } 
  .analytics-charts {
      grid-template-columns: 1fr;
  }
} 

@media (max-width: 768px) { 
  .mobile-menu-btn { 
      display: block; 
  } 
  .sidebar { 
      transform: translateX(-100%); 
  } 
  .sidebar.active { 
      transform: translateX(0); 
  } 
  .main-content { 
      margin-left: 0; 
  } 
  .nav-menu { 
      display: flex; 
      overflow-x: auto; 
  } 
  .nav-item { 
      margin-bottom: 0; 
  } 
  .nav-link { 
      padding: 10px; 
      flex-direction: column; 
      align-items: center; 
      font-size: 0.8rem; 
  } 
  .nav-link i { 
      margin-right: 0; 
      margin-bottom: 5px; 
  } 
  .daily-report-controls { 
      flex-direction: column; 
      align-items: flex-start; 
  } 
  .daily-summary { 
      grid-template-columns: 1fr; 
  } 
  .expense-summary, .purchase-summary, .analytics-summary {
      grid-template-columns: 1fr;
  }
  .page-header {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
  }
  .section-header {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
  }
  .inventory-header {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
  }
} 

@media (max-width: 576px) { 
  .products-grid { 
      grid-template-columns: repeat(2, 1fr); 
  } 
  .cart-actions { 
      grid-template-columns: 1fr; 
  } 
  .login-card { 
      width: 90%; 
      padding: 30px 20px; 
  } 
  .header { 
      flex-direction: column; 
      align-items: flex-start; 
      gap: 15px; 
  } 
  .modal-content { 
      width: 95%; 
      margin: 20px; 
  } 
  .table-actions {
      flex-direction: column;
      gap: 10px;
  }
  .table-header {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
  }
}