I’m commissioning a browser-based platform that lets everyday users build and launch email campaigns in a glamorous, Hollywood-styled environment. The interface should feel Classic rather than ultra-modern or minimalist, echoing vintage studio marquees while still running smoothly on today’s desktops, tablets, and phones. Core functions • Campaign creation – users choose from ready-made Invitation templates (with room for future Newsletter or Promotional sets) and can attach up to three files per send. • Bulk delivery – the system must push out as many as sixty separate campaigns in a single batch without throttling issues. Think SendGrid, Mailgun, or a similar SMTP gateway behind the scenes. • Document vault – every attachment and any extra resources need to be stored for later download, so a simple file manager tied to AWS S3, Azure Blob, or local storage is required. • Business email alias – on sign up the platform assigns each client a dedicated address such as for sending and replies. • Added workspace tools – an on-page notepad, calendar, basic calculator, and a stopwatch that tracks the exact time elapsed from “Prepare” to “Launch” for each campaign. • Multilingual reach – built-in translation of the UI and outgoing content for Spanish, French, and German. • Subscription engine – first-time users pay $130 for four months, then $25 every additional month; the code must automate renewals, reminders, and access control. Acceptance checkpoints 1. Launching sixty campaigns completes in under five minutes with delivery logs available. 2. Attachments up to 20 MB combined are accepted and stored securely. 3. Language switch instantly updates both interface labels and any template placeholder text for the three supported languages. 4. Stopwatch report is written to each campaign’s history table. 5. Stripe or PayPal subscription flow charges the correct introductory and renewal amounts. 6. UX meets the agreed Classic visual mock-ups. Please build the full stack, deploy a test build to a live URL I can access, and hand over source code, database schema, and a short admin guide when done.