Build an AI budget planner app focused on forward-looking planning rather than backward tracking. Users input their income and fixed expenses, then describe their variable spending in natural language ('I spend about $400 on groceries, $200 on gas, and I want to save for a $3000 vacation in 6 months'). The app: auto-categorizes spending, suggests a realistic monthly budget per category based on income, forecasts end-of-month cash position, sends alerts when projected spending exceeds budget, and visualizes progress toward savings goals. Include a 'what-if' simulator where users can adjust categories and see impact on savings timeline. Mobile-first design with cream (#F5F2EC) background and purple (#7C3AED) accents. Support multiple savings goals with priority weighting.