Redesign: remove the unused legacy stylesheet

AGENTS.md

@@ -5,7 +5,7 @@ Josselin Perrus's personal site: an Astro 7 static site served by Cloudflare Wor
 ## Layout
 
 - `src/`: pages, layouts and components. Pages are built in the `Frame` component, which holds the header and the footer; the portfolio view of `/documents/` has its own.
-- `src/styles/`: `tokens.css` holds the colours and fonts as custom properties, `global.css` the base styles, and `legacy.css` the content styles of the pages not yet rebuilt in the redesign.
+- `src/styles/`: `tokens.css` holds the colours and fonts as custom properties, and `global.css` the base styles.
 - `src/fonts/`: the self-hosted fonts, DejaVu Sans Mono and Newsreader, subset by `scripts/subset-fonts.py`, with their licences. The site loads no outside fonts.
 - The page background (`src/components/Background.astro`: the paper texture and the corner pattern) and the topic map (`TopicMap.astro`, inside the `Intro` of Home and About) are drawn on canvases from small images in `src/assets/background/`. `scripts/make-background.py` makes those images, from the map's land in `src/data/topic-map.json`; rerun it after changing either, and commit its output. The site loads no shader library.
 - `src/content/writing/`: git submodule of [meaningfool-writing](https://github.com/meaningfool/meaningfool-writing), which holds every article, activity log and image. Read its `AGENTS.md` before editing content.

src/layouts/Layout.astro

@@ -1,6 +1,5 @@
 ---
 import '../styles/global.css';
-import '../styles/legacy.css';
 import Background from '../components/Background.astro';
 import Frame from '../components/Frame.astro';
 import Favicons from '../components/Favicons.astro';