XPERTUS Website from PPTX

I have a very small site (https://decide.xpertus.com/) that was thrown together in a hurry. Instead of patch-fixing it, I now want a clean rebuild that matches the look, timing, and slide-to-slide sequence shown in the attached PPTX.

You may code the page directly in vanilla HTML5 and an external styles.css, or, if you find it faster, spin it up in WordPress and hand over the export plus the theme files—either approach is fine as long as the end result mirrors the PPTX.
You may propse new colors, and a new layout.

Key points
• Single, lightweight page—no frameworks unless they are absolutely necessary for the animations in the deck.
• Recreate every transition and delay shown when the PPTX is run as a slideshow.
• Keep the markup tidy and well-commented so my team can tweak copy later.
• Deliverables (inside a zipped folder):
– index.html
– styles.css (plus any tiny assets you add, e.g., icons or images)
• Ready within 24 hours so I can review and go live.

The budget is tight, but the scope is equally tight; if you know your way around, this should be a quick win.
Let me know if WordPress makes more sense for you, otherwise a straight HTML/CSS handoff is perfect.