piyushgothwal/hbd1895 ? reverse-engineered prompt

Build me a simple birthday surprise webpage for someone special.

I want it to feel warm, cute, and celebratory, with a big happy birthday message, some nice styling, and a few small interactive touches like confetti, a card, or a button that reveals a sweet note. Keep it as one easy page I can open in the browser, and make it look good on both phone and desktop.

Use clean HTML and make the page feel polished without being complicated. If you need to look up current browser friendly effects or examples online, go ahead.