Introduce reset.css and theme.css and refactor style.css
to import them via layers; add Unscii font files and preload links.
Add RSS XSL/CSS and a css-test page; remove legacy snes.min.css.
Tweak BaseLayout and contact layout (preloads, grid gaps). Rename index.astro to parallax.astro and
created new basic index page. Improve input styles and contact form placeholders
