Next Move.

Build a polished, working single-page web app called **Next Move**. Its purpose is to help someone choose what to do next when they feel overloaded.

The user must be able to add tasks with a name, impact from 1 to 5, urgency from 1 to 5, estimated effort of 10, 30, 60, or 120+ minutes, and required energy of low, medium, or high. At the top, the user selects the time they currently have and their current energy level.

Rank the tasks with a transparent formula: `(impact x 4) + (urgency x 3) + time-fit bonus + energy-fit bonus`. Add 4 points if a task fits the available time and subtract 6 if it does not. Add 3 points if the task's required energy is at or below the user's current energy.

Present one clear **Do This Next** card, followed by the ranked backlog. Include a concise **Why this?** explanation, sample data, delete and reset controls, and automatic local browser persistence. No login, backend, tracking, external services, or personal-data collection.

Make it responsive and mobile-friendly. Use a calm, modern visual system: dark navy and charcoal, warm amber for the recommended action, high contrast, generous spacing, and no stock images or dashboard clutter.

Build a working preview but do not publish it yet. Before building, briefly state the plan. Ask at most one question only if it is essential; otherwise make reasonable decisions and proceed.