Vibrant Squares Birthday Card

Designed with a deep black background, this card centres a nested set of square frames that pull your eye inward like a gentle tunnel. The outer frame starts in bright lime green, then shifts inward through clear blue, deep purple, hot pink, and a warm orange-red near the middle, creating a cozy, close-in feeling like two friends leaning in for a photo at a party 🎉. Each colour band is sharp and evenly spaced, giving the geometry a steady rhythm that feels both modern and a little nostalgic. In the central black square, a short birthday message appears in white, pixel-style lettering, placed squarely in the middle for a crisp contrast 🎂. The text looks like it came from an old digital display, adding a friendly, retro touch without stealing attention from the colour frames. Tiny stepped edges along some of the square borders add a pixel-like texture that makes the whole design feel intentionally digital. The final look is a stack of glowing square rings surrounding a black centre with white pixel letters.