Interactive Dashboard with KPI's

Overview I run a small services company and I want a freelancer to design and build an interactive dashboard for me from scratch, based on the specification below, and populate it with my own company's data. I'm not supplying any existing code or template — I want you to build the whole thing and bring your own approach to the design and implementation. Ideally it should be a single self-contained HTML file that runs in any browser with no server or install. I will provide: • My company data (in Excel/CSV — client, service line, location, month, revenue type, revenue, cost). • My branding basics (company name, colours/logo if available). • Answers to any questions you have as you build it. What I want the dashboard to do A single HTML file that runs in any browser with no server or install, organised into six sections/tabs that analyse my company by clients, services, and regions. Including KPIs. Tech stack (suggestion, not a requirement) A plain HTML/CSS/JavaScript build using something like Chart.js (charts), Plotly or a similar library (map) and SheetJS/xlsx (Excel export), loaded from CDNs, would suit me fine — but I'm open to whatever you'd recommend. Please tell me what you'd use and why, especially for the map and the PDF export. Deliverables • The working dashboard file(s), tested in Chrome/Edge/Firefox and Safari. • Correct figures (I'll give you a couple of totals to reconcile against). • Clean, commented code. Notes • I'd like the interface in Catalan (Spanish or English also fine) — tell me if any of those is a problem. Bonus if you can handle Catalan/Spanish labels. • My data is confidential; I'm happy to sign an NDA and will share full data only after hiring (I can share a small anonymised sample during selection).