caab40d9a4
ROOT CAUSE found via build artifact analysis:
- Built CSS files (dist/_astro/Base.*.css) had ZERO [data-theme='dark']
selectors even though source had 17. Astro/Vite CSS optimizer
strips attribute selectors that don't match any static HTML attribute
(we set data-theme dynamically via JS, not in JSX/HTML).
- Also stripped: all html { } and body { } rules from source.
- Result: dark mode visually did nothing. Body stayed white.
FIX:
- Replace [data-theme='dark'] with html.dark (17 occurrences in
fx-system.css). Vite keeps .dark class selectors because the
anti-flash script (in Base.astro <head>) sets a class, not an
attribute, which Vite sees as 'used'.
- Update anti-flash script in Base.astro: classList.add/remove
instead of setAttribute('data-theme', ...).
- Update UtilityBar.astro applyTheme() to use classList too.
- Restore body { background: var(--body-bg) } override (was stripped
by Vite as 'unused' — but now html.dark applies to it correctly).
ALSO FIXED theme toggle button visibility (from previous turn):
- Removed v7-5 base .fx-theme-toggle rule (rgba(0.1) opacity made
button invisible — only visible on hover).
- Consolidated into single rule with proper contrast for both modes.
Verified by:
- Build complete: 22 pages, 1.97s
- Built CSS: 17 html.dark selectors present (was 0)
- Body background override present in built CSS
- HTTP server on :4322 serving correct artifacts
Astro Starter Kit: Minimal
npm create astro@latest -- --template minimal
🧑🚀 Seasoned astronaut? Delete this file. Have fun!
🚀 Project Structure
Inside of your Astro project, you'll see the following folders and files:
/
├── public/
├── src/
│ └── pages/
│ └── index.astro
└── package.json
Astro looks for .astro or .md files in the src/pages/ directory. Each page is exposed as a route based on its file name.
There's nothing special about src/components/, but that's where we like to put any Astro/React/Vue/Svelte/Preact components.
Any static assets, like images, can be placed in the public/ directory.
🧞 Commands
All commands are run from the root of the project, from a terminal:
| Command | Action |
|---|---|
npm install |
Installs dependencies |
npm run dev |
Starts local dev server at localhost:4321 |
npm run build |
Build your production site to ./dist/ |
npm run preview |
Preview your build locally, before deploying |
npm run astro ... |
Run CLI commands like astro add, astro check |
npm run astro -- --help |
Get help using the Astro CLI |
👀 Want to learn more?
Feel free to check our documentation or jump into our Discord server.