Design a minimalist and modern logo for 'HeartHub,' combining a stylized heart and hub concept. The heart should represent the core and central connection point, while thin lines or circles radiating from the heart symbolize the convergence of different businesses. The logo should have smooth, geometric lines, creating a sleek and professional feel. Use a clean, sans-serif font like Montserrat or Poppins for the typography, with a subtle emphasis on the 'H' that incorporates elements of connection or a heart. The color palette should include red or coral for the heart, with accents of dark gray, black, or muted blue/green for a professional and harmonious look. The design should have no background or be placed on a solid white background for easy removal. --no background  --ar 1:1 --s 750