Load luna.css non-render-blocking on the homepage

[oddharsh]

The homepage's visible window is fully styled by the inline <style> block. luna.css only dresses the JS-injected .axp-* desktop shell that nav.js builds after defer. So render-blocking first paint on luna.css's 16.3KB brotli buys nothing on the homepage.

Change

• Swap the render-blocking <link rel="stylesheet"> for a media="print" onload="this.media='all'" applier.
• Keep the high-priority preload up top (so the flip resolves from cache) and add a <noscript> fallback for JS-off.
• The applying link stays in place, so luna's cascade slot (after the inline block) is unchanged.

Verified

• renderBlockingStatus flips from blocking to non-blocking on both source and the minified .build/ output.
• Single fetch (preload + print link dedupe).
• Renders identically (title bar, frame, full shell), no FOUC, no console errors.
• Build passes all luna.css tripwires (CSP style-src, blink-fix, geometry); minifier preserves the onload handler and <noscript>.

Scope / caveat

• Homepage only. Worker-rendered pages keep the blocking link by design (their inline critical set is geometry-only, so deferring there would flash a bare window).
• The win is real-world cold visits on slow links; on fast connections it's a wash. No downside either way.

🤖 Generated with Claude Code

[github-actions]

Understanding-first review

This is a prompt, not a score or merge gate. Before approving, reconstruct the change:

• My model: What do I think this PR does?
• Mechanism: What path or invariant makes that behavior true?
• Falsifier: What would prove my model wrong?
• Evidence: What test, trace, dry-run, or live check did I inspect?
• Residual uncertainty: What remains unproven?

For docs and dependency changes, a compact answer is enough. For behavior or production changes, include the causal path and one concrete counterexample. The author’s claim card belongs in the PR description; this prompt is for the reviewer’s independent reconstruction.

See UNDERSTANDING-REVIEW.md.

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Updated (UTC)
✅ Deployment successful! View logs	aadhar-sh	ac40667	Jul 22 2026, 02:04 AM