Prompt

Create a modern SaaS web application for real estate flipping (buy → renovate → sell properties).

## 🎨 Design & UI
- Clean, minimalistic, airy design
- Color palette: blue + white
- Support dark mode (user preference + system preference fallback)
- Use latest Material Design icons
- Horizontal top navigation
- Fully responsive (desktop first, mobile friendly)
- Use cards, soft shadows, rounded corners
- Clear visual hierarchy
- Include empty states, loading states, and success/error toast messages

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## 🔐 Authentication
- Google login
- Email + password registration/login
- After first login, show onboarding:
  - Option 1: Create new account
  - Option 2: Join existing account via invite code

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## 👥 Multi-user system
- Entities:
  - Account (workspace)
  - User
  - Membership (role: admin / user)

- Rules:
  - Max 10 users per account
  - Admin:
    - full access
    - can approve/reject join requests
    - can change roles
  - User:
    - read-only access (no create/edit/delete)

- Join flow:
  - User enters invite code
  - Status = pending
  - Admin sees requests in Settings:
    - Approve / Reject
    - Manage active users

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## 🧭 Navigation
Top menu:
1) Dashboard
2) Properties
3) Settings

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## 🏠 Properties (Nemovitosti)

### Table
- Paginated table (25 rows per page)
- Search bar (search by property name)
- Sortable columns (only one active sort at a time)

### Columns:
- Name
- Type (house / apartment / land)
- City
- Layout (1+1, 1kk, 2+1, 2kk, 3+1, 3kk, 4+1, 4kk, 5+1, 5kk, 6kk+)
- Purchase date
- Sale date
- Purchase price
- Sale price
- Profit (badge: green/red, only if sold)
- Status (colored badge)

### Filters:
- Type
- Layout
- City (based on existing values)
- Purchase price (range slider)
- Sale price (range slider)
- Purchase date (date range)
- Sale date (date range)
- Include "Unspecified" values

### Actions:
- Edit (modal)
- Delete (confirmation modal)
- Click name → Property detail

### Export:
- Export selected rows to CSV

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## ➕ Create / Edit Property

### Required:
- Name

### Optional:
- Type (enum)
- Layout (enum)
- City (text)
- Purchase price
- Purchase date
- Sale price
- Sale date
- Status (manual override possible)
- Photos (max 10)
  - drag & drop
  - reorder
  - first = cover image
- Publish toggle (default false, no functionality yet)

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## 🔄 Property Status Logic
Manual + automatic:
- If purchase date + price filled → "Purchased"
- If sale date + price filled → "Sold"
- Otherwise manual override allowed

Statuses:
- Tracked
- Purchased
- Reconstruction
- On market
- Sold

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## 📄 Property Detail

Tabs:

### 1) Overview
- Read-only property data
- Photo gallery

### 2) Costs

#### Summary:
- Total cost

#### Table:
- Name
- Price
- Date
- Supplier
- Type (material / labor / services / combined)
- Note
- File attachment

#### Actions:
- Add cost (modal)
- Edit
- Delete (confirmation modal)

### Cost form:
- Required: name
- Optional:
  - price (positive only)
  - date
  - supplier
  - type
  - note
  - file upload

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## 📊 Dashboard (Homepage)

### Date range picker:
- From / To (day precision)
- Option: "Today"
- Default: last 12 months (rolling)
- Persisted on backend per user

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### KPI Cards:
- Total purchases
- Total costs
- Total sales
- Total profit (only sold properties)
- ROI %
- Number of purchases
- Number of sales

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### Rules:
- Only SOLD properties count for:
  - profit
  - ROI
  - sales metrics
- Unsold properties = excluded

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### Chart:
- Line chart
- Aggregated by months
- Show:
  - costs
  - sales

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## ⚙️ Settings

### Account:
- Invite code (copy button)
- User management:
  - Pending requests
  - Active users
  - Role switching
  - Remove user

### Preferences:
- Dark mode toggle (persisted backend)
- Currency:
  - CZK / EUR
  - Only formatting (no conversion)

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## ⚡ UX Details
- Empty states (no properties, no costs, etc.)
- Success + error toast messages
- Confirmation dialogs for destructive actions
- Loading states
- Optimistic UI updates where appropriate

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## 🧠 Data Model (implicit)
- Account
- User
- Membership
- Property
- Cost

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## ⚙️ Performance
- Pagination (25 rows)
- Efficient filtering and sorting

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Build this as a scalable SaaS foundation with clean component structure and reusable UI patterns.