# Universal Web > Modern web framework for production websites with enterprise security, AI self-healing, and multiple design presets. ## Overview Universal Web is a copy-paste framework built with Next.js 15, TypeScript, and Tailwind CSS v4. It provides enterprise-level security, automated error recovery via AI, and a design token system with switchable presets. ## Key Features - Design Token System: All visual tokens in a single config file, switchable presets (Glass UI, Clean Modern, Corporate) - Enterprise Security: CSP with nonce support, CORS, rate limiting, CSRF protection, input sanitization - AI Self-Healing: Sentry error detection → Claude Code analysis → automated fix PRs → auto-deploy - SEO + GEO: JSON-LD structured data, dynamic sitemap, OG images, llms.txt for AI crawlers - Modular Architecture: Feature flags for auth, database, i18n, analytics, email - Email Notifications: Admin and client email templates for error detection and resolution ## Tech Stack - Next.js 15 App Router - TypeScript (strict mode) - Tailwind CSS v4 + shadcn/ui - Motion for React (animations) - Drizzle ORM + Neon Postgres (optional) - Auth.js v5 (optional) - Sentry (monitoring) - Umami (analytics) ## Documentation - llms-full.txt: Detailed technical documentation