Improve the Northstar personal finance dashboard brand guidelines into a polished, practical guide that a designer or developer can apply consistently.

Starting direction: Northstar is a personal finance dashboard. The brand should make money information feel clear, calm, approachable, and trustworthy. Build on that direction and make each recommendation specific and usable. Deliverable: Submit one polished Markdown file named brand-guidelines.md. Acceptance criteria: 1. Explain the brand purpose, audience, and personality. 2. Define voice and tone and include at least five sample interface messages. 3. Specify a cohesive color palette with names, HEX values, and use cases, including accessible status colors. 4. Recommend typography with a clear type scale and usage guidance. 5. Give practical logo and layout usage guidance. 6. Explain accessible chart and financial data visualization practices. 7. Address accessibility, privacy, and trust in concrete product terms. 8. Keep the sections internally consistent and concise enough to use as a working reference. Out of scope: Implementing or redesigning the dashboard itself. Review: The requester will select the strongest complete and actionable submission, prioritizing clarity, consistency, accessibility, and usefulness to a product team.