Professional logo design. "Design a bold and elegant logo for the brand 'NASU' in a gothic/blackletter style similar to the attached reference. Use sharp, angular lines with a strong vertical emphasis and symmetrical structure. Letters should be stylized and interlocked, creating a modern yet classic calligraphic feel. Color palette: black on white background for a clean, high-contrast look. The logo should feel powerful, timeless, and suitable for a premium design/editing company. Ensure readability while keeping the intricate gothic style."