Modern SaaS management platform dashboard for multi-tenant infrastructure, using shadcn/ui and Tailwind CSS v4. Dark/light mode toggle. Layout: - Collapsible sidebar (tenant switcher dropdown top, nav: Overview, Clouds, VMs, Clusters, Billing, Security) - Topbar: search global (filter by tenant/cloud), notifications bell, user profile (switch tenant/org) Main content - Overview page: - Hero metrics row (4 cards): Total tenants (#), Active VMs (#), Cluster nodes (#), Monthly cost ($) - Cloud summary table (AWS/GCP/Azure columns): regions, instances count, CPU/mem usage, cost - Provider cards grid (8 cards): AWS, GCP, Azure, Hetzner, DigitalOcean, Vultr, Proxmox, VMware – each with status (healthy/warning), VM count, quick actions (scale/add) - K8s clusters section: table with cluster name, nodes, pods status, provider (Docker/K8s), tenant owner - Bottom: billing chart (line: costs per provider), security alerts list Responsive, professional, use Tailwind Oxide engine, responsive tables/charts with shadcn components (DataTable, Card, Badge for status).