I have all the information I need. Let me set up the project with a todo list and generate design inspiration for the minimal and clean aesthetic.

Let me check for UI components and read a few more files to understand the existing structure:

Now let me read some UI components I'll need:

Now I have all the context I need. Let me start building the application. I'll create the auth context, types, mock data, and all the components needed for the first task.

Now let me create the product catalog with the modal detail view:

Now let me create the navigation header and the role-based dashboard components:

Good, the components exist. Now let me move to the final task and create the role switcher:

Now let me update the dialog overlay to add the blur effect as requested:

I've built the first version of your product software with all the requested features. Here's what's included:

Authentication:

• Login page with email/password and demo account hints
• Registration page with password validation requirements
• Persistent auth state via React context

Product Catalog:

• Grid of product cards with images, prices, ratings, and stock indicators
• Search, category filtering, and sorting functionality
• Clicking a product opens a modal with blur backdrop showing full details (description, color/size selection, quantity picker, add to cart)

Role-Based Access Control:

• Client: Browse products, add to cart, view their orders
• Employee: All client features + access to Orders Management page
• Admin: Full control including Dashboard with analytics, User Management, and the ability to add/delete users and change roles

Dynamic Role Switching:

• A role switcher dropdown appears on the main page allowing authenticated users to change their role on-the-fly and immediately see different navigation options and features

To test, you can sign in with the demo accounts (client@example.com, employee@example.com, or admin@example.com) or register a new account, then use the role switcher to explore different permission levels.

Now I understand the structure. I need to:

1. Move role switching into the user dropdown menu in the header
2. Remove orders-related links and functionality from the header and main page
3. Remove the RoleSwitcher component import from the main page

Now let me update the header to include the role switcher in the dropdown menu and remove orders-related items:

Now let me delete the files that are no longer needed (orders page, orders management, and the standalone role switcher):

I've made the requested changes:

1. Removed orders/logistics/sales functionality - Deleted the orders page and orders management component, and removed all order-related links from the navigation and dropdown menus.
2. Moved role switching to user menu - The role switcher is now accessible from the user dropdown in the top-right corner. When you click on your user profile, you'll see a "Switch Role" submenu that expands to show all three roles (Client, Employee, Administrator) with a checkmark indicating your current role.

The app now focuses on authentication, the product catalog with modal details, and role-based access where admins can access the dashboard and user management sections.