Create a square app icon centered on a pure black background. The icon has softly rounded corners and a clean, flat front-facing surface. Its base color is a rich violet-to-purple gradient, blending smoothly from deep electric purple into brighter magenta-violet tones. At the center, add a radiant cyan-blue glow that softly blooms outward, creating a luminous focal point. The glow should feel atmospheric and diffused, not harsh, with soft feathered edges that blend naturally into the purple surface. Place a bold white geometric symbol in the center. The symbol should be angular, symmetrical, and highly minimal, built from thick clean lines with sharp edges and strong visual weight. Its structure should feel futuristic and architectural, resembling a stylized monogram or abstract emblem, with open negative space between forms. Keep the white symbol perfectly crisp with no texture or gradient. Around the icon, add a soft outer halo glow extending into the black background. This glow should be subtle white with hints of cool blue, creating a premium floating effect without overpowering the icon. Use smooth gradients, sharp vector clarity, and high contrast. No texture, no shadows inside the icon, no bevel, and no material realism. The final look should feel like: premium software brand futuristic app identity minimal but bold luminous and polished crisp, modern, high-end