I can't believe how well this works!

apps/next/src/app/(frontend)/styles.css

@@ -23,7 +23,11 @@
   * {
     @apply border-border;
   }
+  html {
+    @apply bg-background;
+  }
   body {
+    @apply bg-background text-foreground;
     letter-spacing: var(--tracking-normal);
   }
 }