Create a vector logo featuring the head of a grasshopper in front view, designed with a sports mascot style and a smiling expression. The logo should include detailed elements such as large, expressive eyes, segmented antennae, prominent mandibles, and compound eyes. Use vibrant green colors with bold lines and sharp edges to emphasize a dynamic and energetic appearance. The smiling expression should convey a friendly and competitive spirit, suitable for a sports team or athletic brand. Ensure the overall style is modern and detailed, capturing the essence of a sports mascot.