## Phase 1 — Write the master prompt

Role: you are a top expert in prompt engineering and a data analyst.

Attached: my data file.
Audience for the dashboard: [audience, e.g., CEO/CFO]
Minimum number of visuals: [number, e.g., 10]

Task: review the attached file and write a complete, very detailed prompt that I will use to generate an interactive dashboard in HTML for this audience. The prompt must require at least that number of visuals, interactive slicers and clear insights drawn from the data.

Rules:
- Do NOT write any code at this stage.
- Give me ONLY the master prompt, in one block I can copy, written so it works in a new chat where I upload the same file again.

## Phase 2 — Refine the dashboard

Update the dashboard:
1. Replace the line chart with a heatmap of sales volume by day of the week.
2. At the top, add 3 KPI metric cards: Total Revenue, Net Profit and Total Orders.