Sentinel React Contentful is a production-ready cybersecurity SaaS theme that combines the speed of React 19 with the flexibility of Contentful’s headless CMS. Built on Vite 7 with Tailwind CSS v4, it delivers a dark-first design that cybersecurity companies expect — complete with gradient accents, glassmorphism cards, and smooth page transitions.

The theme includes 13 meticulously crafted pages covering every section a SaaS product needs: a hero with animated stats, feature showcases with SVG mockups, a 3-tier pricing table with billing toggle, customer testimonials, a fully functional blog, integration directory with category filtering, team profiles, changelog timeline, and legal pages.

What sets this variant apart is its dual-mode data architecture. Out of the box, the theme renders instantly using local JSON data files and Markdown blog posts — no CMS account needed. When you’re ready, simply add your Contentful credentials to an .env file and the theme seamlessly switches to fetching content from the Contentful Delivery API, complete with loading states and rich text rendering. If a Contentful fetch ever fails, the theme gracefully falls back to local data with no user-visible errors.

Every component is built with TypeScript in strict mode, ensuring type safety across the entire codebase. The design system uses CSS custom properties with Tailwind v4’s @theme syntax, making palette changes a single-file edit. Fonts are self-hosted (Inter and Space Grotesk) with zero external CDN dependencies.