🤖 Fix: Define font CSS variables and add font-primary class

- Add --font-primary and --font-monospace CSS variables to :root
- Add 'primary' to Tailwind fontFamily config
- Fixes issue where font-primary class and var(--font-primary) were undefined
- Ensures all text uses correct IBM Plex Sans font

Author: kylecarbs

src/styles/globals.css

@@ -133,6 +133,10 @@
     --color-token-variable: hsl(var(--token-variable));
     --color-token-fixed: hsl(var(--token-fixed));
     --color-token-cached: hsl(var(--token-cached));
+
+    /* Font Variables */
+    --font-primary: "IBM Plex Sans", sans-serif;
+    --font-monospace: "JetBrains Mono", Consolas, Monaco, monospace;
   }
 
   * {

tailwind.config.ts

@@ -100,6 +100,7 @@ export default {
         "accordion-up": "accordion-up 0.2s ease-out",
       },
       fontFamily: {
+        primary: ["IBM Plex Sans", "sans-serif"],
         sans: ["IBM Plex Sans", "sans-serif"],
         mono: ["JetBrains Mono", "Consolas", "Monaco", "monospace"],
       },