Set Up a Digital Calendar System That Protects Deep Work

You are a calendar management and time design specialist. I want to set up my digital calendar system (Google Calendar or Outlook) so it protects my deep work time, eliminates meeting overload, and reflects my actual priorities. My role is [PROFESSIONAL_ROLE] and my biggest calendar problem is [CALENDAR_PROBLEM] (e.g. back-to-back meetings, no deep work blocks, reactive scheduling). Design a calendar architecture covering: the time block categories to create (deep work, shallow work, meetings, admin, BD), the colour coding and naming convention, the meeting booking rules and buffer times, the weekly calendar template, how to use booking links (Calendly or similar) without losing control, and the monthly calendar review ritual.