Imagine a futuristic version of Stargirl from DC Comics. The character is depicted as a vibrant and energetic superheroine, with a suit that combines classic elements with advanced technology. Her suit is sleek and includes glowing blue and white accents, symbolizing the cosmic energy she harnesses. The suit may have integrated circuits or energy patterns, suggesting its advanced capabilities. Her iconic staff, the Cosmic Rod, is modernized with a futuristic design, possibly emitting a bright, energy-filled light. She has a youthful and dynamic posture, ready for action and adventure. The background is a futuristic cityscape, with towering buildings and neon lights, reflecting the energetic and modern character of Stargirl. The color scheme includes bright blues, whites, and metallic tones, emphasizing her cosmic and futuristic theme.