$99

Flabbergasted, an Astro & Tailwind CSS SaaS template

Flabbergasted is a sleek dark SaaS template designed for fast-moving startups and AI products, combining bold aesthetics with high performance.

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Buy Flabbergasted Live Demo

All Pages

Static Pages

  • Landing page
  • About
  • Contact
  • Sign in
  • Sign up
  • Error 404

Content Collections

  • Blog
  • Customers
  • Integrations
  • Help Center
  • Changelog
  • Team
  • Legal pages

Good to Know — Each theme includes a main index page and individual detail pages. You’ll also get a preconfigured .pages.yaml file that automatically connects your content collections. That’s all you need to start using PagesCMS — no extra setup required, no bloated code.

Features

  • Blog Tags
  • Reusable components
  • Optional CMS via PagesCMS
  • Search powered with Fuse JS
  • Content collections
  • Seo Optimized
  • Ongoing updates
  • Style guide
  • Astro RSS
  • Astro SEO
  • Astro Sitemap
  • Tailwind CSS Forms
  • Tailwind Typography

Specifications

  • Astro v5
  • Tailwind v4
  • Released on 02.23
  • Updated on 08.25
  • Performance 99
  • Accessibility 100
  • Best Practices 100
  • SEO 100

File Structure

  • public
  • src
    • components
    • layouts
    • pages
    • content
      • folders
      • config.ts
    • data
    • scripts
    • styles
      • global.css
    • endv.d.ts
  • .pages.yml
  • astro.config.mjs
  • package.json
  • README.md
  • ts.config.json
Documentation License Support Faq

Flabbergasted — Dark SaaS theme for Astro & Tailwind CSS

Flabbergasted is a bold dark-mode SaaS template designed for AI products, startups, and fast-moving digital platforms. With sharp layouts, sleek gradients, and a confident design system, it’s made for teams that want to launch quickly while standing out from generic SaaS designs. Powered by Astro and Tailwind CSS, it delivers performance and maintainability without compromise.

Specifications

  • Built with Astro v5 + Tailwind CSS v4
  • High Lighthouse scores across Performance, Accessibility, Best Practices, and SEO
  • Fully responsive and optimized for modern browsers

Features

  • Multiple landing, about, and contact page templates
  • Content collections for blogs, changelogs, integrations, and help centers
  • Reusable components (buttons, wrappers, typography, etc.) styled with the OKLCH color system
  • Built-in search powered by Fuse.js for quick in-site discovery
  • Blog pagination for structured article browsing
  • SEO-ready with Astro SEO, Sitemap, and RSS integrations
  • Clean file structure with a style guide and ongoing updates

PagesCMS Ready

Flabbergasted includes a preconfigured .pages.yaml file that connects your content collections directly to PagesCMS.
All integration happens automatically when you link your repo inside the PagesCMS dashboard—no changes are made to the template code. You keep a pure Astro + Tailwind CSS setup with the option to use PagesCMS anytime.

Modern Color System

The theme uses OKLCH color values for consistent cross-browser rendering and future-proof color management in Tailwind CSS v4. Gradients and dark UI elements are designed to highlight SaaS and AI products with clarity and impact.

Why Choose Flabbergasted?

  • Dark-mode aesthetic built for SaaS and AI-driven platforms
  • Astro’s static-first architecture for speed and scalability
  • Tailwind utilities for rapid customization and clean design patterns
  • Ready-to-use content collections for customers, integrations, and updates
  • Flexible enough for product launches, software platforms, or AI-focused startups
Buy Flabbergasted Live Demo

Customers & supporters

Feedback from developers, founders, and fans who use Lexington Themes in their projects.

Read all reviews
Photo of Stuart

Stuart

Creator of saasydb.com

I bought a beautiful theme from Lexington a couple weeks ago. I didn't know Astro at the time, but Michael helped me get set up and really went above and beyond with his support. Now I'm happily redoing my site to look gorgeous with his template.

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Nima

Founder of Wefindflats.com

Quality of your work is superior to what I have seen else where.

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Stefan S.

Founder @anomyscom

Out of all tailwind templates/ui kits out there, yours are the only one that are different. Says a lot about how important design is... Keep it up!