$79

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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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 — Every theme comes with a preconfigured .pages.yaml that links your collections. PagesCMS works out of the box — no extra setup.

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

Benefits

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

Optional CMS

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

Customers & supporters, it's all appreciation.

Read all reviews

Michael has been dropping some amazing premium themes for Astro lately.

Fred Schott

CEO of Astro.build

Just purchased the bundle on Lexington Themes by @Mike_Andreuzza. Let's make astonishing websites with it!

Thomas Sanlis

Uneed.best

Lexington Themes is honestly one of the best deals any engineer/web designer could make. It will speed up your next project 10x.Multiple great themes, with dozens of components and page designs ready to go. All built with tailwind, so you can easily make changes to make it stand out or swap to a different framework.Well worth a go!

Alex Hughes

letsloopin.com

Thank you very much for your work, especially for Kotei template, which helped me launch website in one day (and give me ideas for initial data organization (and more). Thank you! It was huge help for Huly Labs

Andrey Platov

Huly.io

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.

Stuart

Creator of saasydb.com

I love your Astro themes and have a few sites in the works. I'd like to find ways to increase the use of Astro because I love it so much. Thanks for saving me so much time in dev work.

Moo

Freelancer