Today I worked on one of the parts of FoldCheck I’ve been looking forward to building which is the opening cinematic. I wanted someone opening FoldCheck to understand why protein structure matters before being thrown straight into scientific data, so the intro now follows the story from the human body → cell → amino acids → folded protein → AlphaFold prediction → uncertainty → FoldCheck. The first few scenes use detailed scientific-style visuals with animated labels and transitions, and I built the whole sequence to automatically move between stages while still letting users skip it or replay it later. I also added progress indicators, subtle movement, responsive layouts and a final FoldCheck scene that introduces the different types of evidence the project will eventually bring together. I also learnt a slightly painful lesson about CSS today 😭. While rebuilding the cinematic styling I accidentally wiped the original homepage styles, which turned the entire landing page into basically raw HTML. After a lot of debugging, I reconstructed the stylesheet section by section, fixed several syntax issues, and finally got both the cinematic and the original homepage working together again with no errors. The cinematic isn’t completely finished yet. Some labels still need to be positioned more accurately, and the AlphaFold and uncertainty scenes currently use temporary protein graphics that I want to replace with much better molecular visuals. But the full journey now works from beginning to end, and FoldCheck finally has the opening story I imagined when I planned the project .Next: polish those last cinematic visuals, then start the big part which is loading real AlphaFold protein data and building the interactive 3D analysis workspace.