Create a St. Patrick’s Day-themed Happy Birthday greeting for Nick. The design should feature festive elements such as shamrocks, leprechauns, pots of gold, and green decorations. The text should say ‘Happy Birthday, Nick!’ with a fun, cheerful, and lucky vibe. Use bright greens, golds, and white to match the holiday spirit. Add a touch of Irish charm with a playful or heartfelt message about luck and celebration.