Animate only the logo text with a dynamic sand effect Sticker

Animate only the logo text with a dynamic sand effect: grains subtly shift, shimmer, and swirl as if the letters are made of moving golden sand. Add subtle 3D depth to the letters (slight extrusion, soft shadows, light reflections moving across the surface). Keep the background fully transparent — no added colors, textures, or elements. All motion must stay strictly within the original bounding box of the logo — no particles, sand, or letter parts should extend beyond the image edges. Do not dis