How can we co-design a more resilient and legitimate democracy for the 21st century? This comprehensive series of policy syntheses evaluates the structural barriers to civic engagement and presents co-created solutions for a world in transformation. By focusing on systemic infrastructure, human-centered technology, and bridging social divides, INCITE-DEM provides policymakers with evidence-based strategies to restore institutional trust and foster the democratic foundations necessary for a sustainable socio-ecological transition.