Replace existing custom CSS in src/ and styles/ with Tailwind CSS and Daisy UI components, in incremental steps with tests after each.

Tasks:

• No installation required.
• In head.ts head, add:

  <link href="https://cdn.jsdelivr.net/npm/daisyui@5" rel="stylesheet" type="text/css" />
  <script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>
  <link href="https://cdn.jsdelivr.net/npm/daisyui@5/themes.css" rel="stylesheet" type="text/css" />

Stop and test: Reload the app, add a Daisy UI class (e.g. btn) to a component, verify the style applies.

Tasks:

• Locate any global resets (e.g. reset.css) in styles/.
• Move necessary rules into Tailwind’s @layer base in index.css.
• Comment out or remove old import statements in src/index.tsx or App.tsx.

Stop and test: Confirm global styles (default fonts, margins) remain appropriate.

Tasks:

• Inventory components using custom CSS classes (search className=" in src/).
• For one component at a time:
  • Replace class names with Tailwind/Daisy UI classes.
  • Remove related CSS rules from styles/.

Stop and test: Verify component layout and styles.

Tasks:

• Identify common UI patterns (buttons, cards, forms).
• Replace with Daisy UI prebuilt classes (e.g. btn, card).

Stop and test: Check visual consistency and responsiveness.

Tasks:

• Replace custom grid/flex layouts with Tailwind utilities.
• Update margins, paddings to use utility classes.

Stop and test: Validate page layouts across breakpoints.

Tasks:

• Delete unused CSS files in styles/.
• Remove obsolete imports in code.
• Run production build to confirm no CSS errors.

Stop and test: Build succeeds, UI unchanged.

Proceed one step at a time and pause after each for testing.