gnezim
a3e5ee9bdd
- Add three error display elements with test IDs: departure-error, same-city-error, validation-error - Add validation state management: departureError, arrivalError, sameAirportError, searchValidationError - Add validateDepartureInput() function for input validation (reuses validateCityCode) - Implement same-city validation in useEffect to detect duplicate departure/arrival - Update handleSearch() to check all required fields and show validation-error when missing - Add error styling: .route-filter__error with red text (#d32f2f), light red background (#ffebee), and left border - Same-city error shows inline below arrival input - Search validation error displays below action buttons - Errors automatically clear when conditions are fixed