I'll adjust the animation so the green cover only appears at the beginning, and each letter page stays dormant until it's time to flip.

I've created a sequential book loading animation that matches your requirements exactly:

1. Cover Flips First, Then Letters in Sequence:

   • The animation begins with the green cover flipping
   • Then each letter page (L, O, A, D, I, N, G) flips in sequence
   • The green cover only appears at the beginning of the cycle

2. Pages Stay in Place After Flipping:

   • Once a page flips, it stays flipped (at -180 degrees)
   • The next page remains dormant/static until it's time for it to flip
   • Pages don't reset between letters - they maintain their position

3. Realistic Page Physics:

   • Each page has natural curl and bend effects during flipping
   • The cover has slightly different physics (more weight/rigidity) than the letter pages
   • Pages have proper acceleration/deceleration curves

4. Clean Visual Sequence:

   • The animation clearly shows the progression through the letters
   • Each page waits its turn to flip, creating a clean sequential effect
   • The progress indicator shows which letter is currently active

The animation maintains the minimalist aesthetic while providing a realistic book-opening experience. The pages flip with natural physics, and each page remains in its proper position throughout the sequence, creating a clear visual progression through the "LOADING" text.

I'll implement all your requested improvements to create a more polished and realistic book animation.

I've implemented all your requested improvements to create a more polished and realistic book animation:

Key Improvements:

1. Faster Page Flipping:

   • Reduced the animation duration from 0.6s to 0.25s for a much snappier flip
   • Decreased the interval between flips from 1200ms to 800ms
   • Simplified the animation curve for a more direct, less wobbly motion

2. Initial Fast Flipping Sequence:

   • Added a sequence where pages rapidly flip 3 times before the actual letter sequence begins
   • These initial flips are even faster (150ms) to create a distinct "loading" effect
   • The letters appear faded during this initial sequence

3. Removed Progress Indicator:

   • Eliminated the line indicators beneath the book for a cleaner look

4. Enhanced Book Realism:

   • Added realistic book binding with subtle shadows along the spine
   • Improved the book edges with proper top and bottom borders
   • Enhanced the page edges with a gradient to show paper thickness
   • Added subtle inset borders for a more three-dimensional appearance

5. Improved Cover Design:

   • Enhanced the cover with better shadows and subtle highlights
   • Improved the transition between cover and pages
   • Added a subtle inset border for a more premium look

6. Smoother Animation:

   • Removed the wobble effect by simplifying the animation physics
   • Used more direct easing curves for the page flips
   • Reduced unnecessary motion values for cleaner animation

7. Proper Animation Cycle:

   • Created a complete cycle that returns to the cover after all letters have been shown
   • Improved the transition between the end and beginning of the cycle

The animation now has a more professional, polished feel with faster page turns, realistic book details, and a proper beginning and ending sequence.