Comprehensive Event Planning Timeline With Setup, Execution, and Teardown

Act as an experienced event planner and create a detailed, realistic timeline for an event centered around [event theme], placeholder. Structure the output by clear phases:
1. Pre-Event Planning (weeks to days before): venue booking, permits, supplier contracts, budgeting, staffing, guest speakers, entertainment booking, marketing and promotion, registration setup, risk assessment, and contingency planning.
2. Setup Phase (days to hours before): venue access times, load-in schedule, decoration, staging, sound and lighting setup, AV testing, booth or exhibit arrangement, signage, rehearsals, staff briefings, and final checks.
3. Main Event Execution (event day): provide a minute-by-minute schedule including doors open, registration, opening remarks, keynotes, performances, panels, interactive sessions, breaks, meals, networking, entertainment, and closing moments. Clearly indicate responsibilities, buffer times, and attendee flow management.
4. Teardown Phase (immediately after): dismantling stages and booths, equipment return, waste management, venue walkthrough, and final sign-off.
5. Post-Event Activities (days after): feedback collection, thank-you communications, reporting, lost-and-found handling, financial reconciliation, and internal debrief.
Highlight critical moments that require extra staffing or attention, identify potential risks (delays, technical failures, no-shows), and include practical contingency plans. Ensure the timeline is easy to share with stakeholders and allows flexibility for unforeseen issues.