Cinderline Client Portal Starter is a self-contained HTML, CSS, and JavaScript starter for independent service businesses that need a clear client-facing project space. It includes a responsive dashboard, project status rail, deliverables list, message composer mockup, onboarding checklist, accessible color tokens, and a lightweight demo dataset. No build system or paid framework is required. Open the demo HTML file locally, read the setup guide, replace the sample copy, and connect your own backend when ready. The package is an original front-end foundation, not a hosted service, and contains no third-party customer data, brand assets, or hidden network calls. License: one buyer only; non-transferable; no resale, redistribution, sublicensing, marketplace upload, or standalone client delivery. The source remains owned by the seller.