First commit

frontend/app/assets/css/main.scss

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+// ============================================================
+// Mathew — the mathematics wiki
+// Hand-written design system: light/dark themes, layout,
+// article typography (prose), editor, code + KaTeX styling.
+// Split into partials, one per section; order mirrors the old CSS.
+// ============================================================
+
+@use 'fonts';
+@use 'tokens';
+@use 'base';
+@use 'layout'; // shell, sidebar, account row, collapsed rail
+@use 'search'; // sidebar bar + the ⌘K popup
+@use 'settings';
+@use 'profile';
+@use 'auth'; // sign-in popup + the editor's gate
+@use 'buttons'; // .btn family + .icon-btn
+@use 'home'; // hero, results bar
+@use 'cards'; // article cards, tags
+@use 'articles'; // topics index bits
+@use 'langs'; // badges, chips, version & language menus
+@use 'states'; // empty, banner, skeleton
+@use 'admin'; // the accounts dashboard
+@use 'article'; // article page, ⋮ menu, TOC, recently viewed
+@use 'prose'; // rendered markdown, highlight.js, KaTeX
+@use 'editor'; // editor, cheatsheet, confirm, fullscreen
+@use 'book'; // the reader: an open book of article pages
+@use 'graph'; // the link map
+@use 'transitions'; // route fades, scrollbars