“Create a modern, minimalist logo for a fitness app called GrindFit. The design should combine strength and motion, featuring a clean geometric icon such as a stylized dumbbell, bolt, or abstract ‘G’ symbol. Use a bold, energetic look suitable for a mobile app icon. Color palette: black, charcoal, electric blue, or neon orange. The style should be sleek, sharp, and high-contrast with smooth gradients or flat design. Include the text ‘GrindFit’ in a strong, modern sans-serif font. The overall vibe should represent power, discipline, and high performance.”