"A sleek, bold, and clean 3D letter 'X' in a vibrant, glowing neon style, centered on a dark, minimalistic background. No extra text or elements, perfectly balanced for a circular Telegram avatar. Neon lighting with smooth reflections, sharp details, cinematic quality, high contrast, and polished edges. Resolution 1024x1024, PNG format. The design should be modern, professional, and visually striking, suitable for branding or social media avatars."