Retro Modern Birthday Card

This greeting card centres on a cream rectangular panel that sits slightly raised with a soft shadow, giving it a gentle, inviting focus. Across the middle of that panel, the words “Happy Birthday” appear in a rounded sans-serif style, coloured deep indigo and spaced for easy reading. Behind it, a geometric mosaic fills the background with a mid-century look, mixing squares that hold solid fills, quarter-circles, and angled wedges. The palette blends rich navy, warm goldenrod, soft sage green, and muted red-orange accents, creating a cosy contrast that feels like friends leaning in close at a small 🎉 gathering. Curved pieces and sharp corners alternate in a steady rhythm, like two people trading smiles across the room without needing to say much. The text stays neatly contained within the central panel while the pattern frames it on all sides, keeping the greeting front and centre for a 🎂 moment. In the background tiles, repeated quarter-circles in navy and goldenrod arc towards the panel against a creamy, parchment-like field.