Why some frosted-glass designs look cheap.

Glassmorphism is now default. Blur a panel, drop the opacity, add a hairline border — and the interface reads as contemporary. It also reads as every other interface, which is the problem with any technique that becomes free.

Three rules that keep it premium

• One light source. Glass is only convincing if it agrees about where the light is coming from. Two glows on one surface and the illusion collapses.
• Never stack glass on glass. A translucent card inside a translucent panel produces mud, not depth.
• Give it something to refract. Glass over a flat colour is just a lighter rectangle — it needs texture, grain or a gradient underneath to do any work.

Contrast is not negotiable

The most common failure is legibility. Translucency lowers contrast by definition, and a card that passes over one background section will fail over the next as the page scrolls. Test text contrast against the darkest and lightest points the panel will ever sit on, not the one in the mockup.

Depth is a lighting decision. Blur is only the last step.