### **Refined Exact Timestamps**
**Part 1: Foundations & Architecture**
* **00:00:00** – Lesson Overview: Tech Stack (React 19, Firebase, Stripe)
* **00:03:08** – Project Demo: Final E-Commerce Site Functionality Preview
* **00:08:48** – Roadmap: Defining the 6 Development Phases
* **00:11:32** – Prerequisites: Node.js Installation & Environment Verification
* **00:13:13** – Phase 1: Initializing React with Vite & Boilerplate Cleanup
* **00:15:16** – Architecture: Defining Global CSS Variables & Core Styles
**Part 2: Backend Integration & Routing**
* **00:19:21** – Firebase Setup: Project Creation, Auth & Firestore Console
* **00:23:45** – Integration: Exporting Auth & Database Instances in React
* **00:34:40** – Navigation: Building Global Header Component
* **00:36:18** – Dynamic Routing: React Router DOM Installation & Path Config
**Part 3: Data Fetching & Product Display**
* **00:44:47** – Phase 2: Implementation of Product Display Logic
* **00:46:50** – Local Data: Mocking Initial Product Objects
* **00:49:00** – API Integration: Fetching External Data from DummyJSON
* **01:00:00** – Advanced Fetching: Connecting to Local Node.js/MongoDB API
* **01:12:48** – Axios Configuration: Setting Up Global API Instance
**Part 4: State Management & Shopping Cart**
* **01:31:50** – Phase 3: Initializing Shopping Cart Logic
* **02:11:29** – Global State: Setting Up Redux Toolkit & Cart Slice
* **02:15:21** – Logic: Add to Cart, Increment, Decrement & Remove Actions
* **02:27:06** – Redux Store: Configuring Persisted State to LocalStorage
* **02:53:45** – Billing: Subtotal & Grand Total Calculation Logic
**Part 5: User Authentication & Security**
* **03:01:41** – Phase 4: Implementing Firebase Auth Services
* **03:04:13** – Auth Provider: Creating Global Context for User State
* **03:07:05** – Identity Logic: User Registration, Login & Logout Methods
* **03:19:03** – Persistence: Synchronizing Auth Identity with LocalStorage
* **03:30:39** – Security: Building Protected Routes (AuthGuard Component)
**Part 6: Checkout, Payments & Deployment**
* **04:00:25** – Phase 5: Initializing Checkout & Shipping State
* **04:05:03** – Geolocation: Dynamic Country & State Selection Integration
* **04:10:35** – Stripe: Building the Payment Portal & Card Processing
* **04:15:36** – Fulfillment: Order Success Logic & Firestore Data Backups
* **04:24:42** – Phase 6: Final Deployment & Hosting on Firebase
* **04:30:08** – Outro: Project Summary & Completion