I'll update the implementation to center it, make it grayscale, and add line numbers.

I've updated the implementation with the following changes:

1. Centered the component by changing the main container's alignment to items-center in page.tsx

2. Made it grayscale by:

   • Changing the spinner and status text color from blue to gray (text-gray-600)
   • Ensuring all colors used are in the gray palette

3. Added line numbers by:

   • Creating a new div to the left of the code content
   • Styling it with a subtle gray color (text-gray-400)
   • Setting a fixed width and right alignment for the line numbers
   • Making the line numbers non-selectable with select-none
   • Showing the current line number based on the line index

The component now has a clean, grayscale appearance with line numbers that help track the code being displayed, while maintaining the fixed width to prevent jumping and keeping everything centered on the page.

I'll update the implementation to show 3 lines at a time with smooth scrolling and a gradient fade effect on the first line.

I've updated the implementation with the following changes:

1. Shows 3 lines at a time:

   • The component now displays up to 3 consecutive lines of code from the current sequence
   • Fixed height container to accommodate exactly 3 lines

2. Smooth scrolling effect:

   • Added a ref to the code container
   • Implemented smooth scrolling when lines change
   • The entire block fades out and in during transitions for a smoother effect

3. Gradient fade on the first line:

   • When all 3 lines are visible, the first line has a gradient fade effect
   • Used a combination of background gradient, text transparency, and opacity to achieve this effect

4. Line progression:

   • Lines advance one at a time, with the oldest line fading out as a new line comes in
   • When reaching the end of a sequence, it transitions to the next sequence

The component maintains the same grayscale color scheme, centered layout, and line numbering as before, but now with the enhanced visual effects you requested.