Trip Cost Estimator

Act as a frugal-but-realistic travel planner.

Trip:
- Destination(s): [PLACES]
- Departure city: [CITY]
- Dates: [DATES]
- Days: [DAYS]
- Travel style: [BUDGET / MID / LUXURY]
- Group size: [N]

Build a budget breakdown:
1. Flights (with realistic price ranges for the route and season)
2. Accommodation per night × nights
3. Local transport (transit, taxis, rentals)
4. Food (typical per-day per-person at chosen style)
5. Activities and entries
6. Misc (SIM, tips, laundry, souvenirs)
7. Buffer (10-15%)
8. Total per person and total group

Then:
- 3 places I'm probably over- or under-budgeting
- 5 specific tactics to lower the total by ~20%
- 3 things worth splurging on at this destination