Some quick rules of thumb for designing a visually appealing website / webapp:

• Use a non-standard font (not a font that is available by default in the browser)
• Use a background image or gradient. Consider these tools:
  • https://app.haikei.app/ (Currently my favorite)
  • https://webcode.tools/css-generator/background-image
  • https://trianglify.io
• Use a color theme generator to create a consistent theme: https://coolors.co/
• Use icons