CSS Edit for Launch Page

I need help editing the CSS of a launch page to match a Figma design. HTML/ React.js and image files are provided.

Key Requirements:
- Match typography (font styles, sizes, colors), layout and spacing, buttons and interactive elements to the Figma design.
- Font-size should be the same as the original website's.
- Implement responsive design for mobile and desktop only.
- No need to implement animations or hover effects.

Ideal Skills:
- Proficient in CSS, HTML, React.js
- Experience with Figma
- Responsive design expertise
- Attention to detail

Once contract is confirmed figma link will be provided