replit.md

Overview

This is a Persian-language Customer Management System built with Streamlit. The application provides an interactive dashboard for analyzing customer data through visualizations and data management tools. It features RTL (right-to-left) support with Vazir font for proper Persian text rendering and includes data upload capabilities for CSV files with integrated plotting functionality using Plotly.

User Preferences

Preferred communication style: Simple, everyday language.

System Architecture

Frontend Architecture

• Framework: Streamlit-based web application with Python backend
• UI Design: Single-page application with wide layout configuration
• Styling: Custom CSS with RTL support and Persian Vazir font integration
• Theme: Professional blue gradient header with responsive design elements

Component Structure

• Page Configuration: Centralized page settings with custom title and icon
• Layout System: Wide layout with structured sections including main header and upload areas
• Styling System: Inline CSS with Google Fonts CDN integration for Vazir font
• Visual Effects: Gradient backgrounds, hover effects, and shadow styling

Data Processing

• Data Handling: Pandas integration for CSV data manipulation
• Visualization Engine: Plotly Express and Plotly Graph Objects for interactive charts
• File Processing: BytesIO for in-memory file operations
• Numerical Computing: NumPy for advanced data calculations

UI Components

• Upload Interface: Styled file upload section with hover effects
• Dashboard Elements: Professional styling with consistent color scheme
• Interactive Elements: Hover transitions and visual feedback
• Responsive Design: Adaptive layout with proper spacing and margins

External Dependencies

Core Libraries

• streamlit: Web application framework and UI components
• pandas: Data manipulation and CSV file processing
• plotly: Interactive visualization library (both express and graph_objects modules)
• numpy: Numerical computing and data analysis

External Resources

• Vazir Font CDN: Persian font from cdn.jsdelivr.net for proper RTL text rendering
• Google Fonts API: Font loading infrastructure for consistent typography

File System Integration

• CSV Processing: Built-in file upload and parsing capabilities
• In-Memory Operations: BytesIO for efficient file handling without disk storage