Create a minimalist, single-colored logo where the letters "LZY" are transformed into a clean, elegant smiley face. The letter "L" forms a smooth, curved smiling mouth, "Z" becomes two simple, relaxed eyes, and "Y" acts as the nose. The design should be refined with clean lines, using only one color, no additional decorations. The style should evoke sophistication, simplicity, and a modern high-end look, appealing to both children and teenagers.