$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 Luis Eduardo Augusto Uyejara

Luis Eduardo Augusto Uyejara

Founder @manifiesto_dao

I have been a keen follower of Michael's work for the past 6 months and I am truly impressed by his aesthetics, functionality, and design consistency.With the help of Lexington themes, building any digital product you desire becomes a piece of cake using their versatile building blocks!

Photo of Colleen M. Brady

Colleen M. Brady

thedailybuilder.com

Bought this the other day and really liking it.

Photo of Harsh Bhikadia

Harsh Bhikadia

Co-founder of nexthome.co

I picked up the Profoliox template, that came with the bundle I purchased from LEXINGTON. I was really impressed with the look and feel of the template - quite minimalist but at the same time also expandable. The template is built on Astro and Tailwind CSS, excellent choices for building a static site that is composed of “Components”.