Refactor styles to utilize Tailwind CSS utility classes for improved consistency and maintainability across forms, motion, shell, and vault components. Remove deprecated reduced-motion styles and consolidate motion-related animations. Update color tokens for better contrast and accessibility. Introduce a new Tailwind CSS configuration file.

postcss.config.js

@@ -0,0 +1,6 @@
+export default {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+};