3D pop-up birthday greeti

3D pop-up birthday greeting card, open flat isometric view, pure white background, 3D paper craft render. Central scene: "HAPPY" letters in soft pink to lavender gradient, with pearl outline. Slightly modify balloons: replace 30% with pastel pink, mint, lavender balloons, keep original star and gift elements. Bottom "BIRTHDAY" letters in soft mint green, pink base with heart glitter. Inner background: soft cream with pastel stars and confetti. Style: dreamy, whimsical, pastel color palette, clean vector lines, studio lighting.