Geometric phoenix emerging from algorithmic void, Voronoi cellular wing panels forming sacred geometry flight chambers, fractal subdivisioned feathers pulsating in golden ratio proportions, iridescent metallic copper amber and obsidian surfaces catching ethereal rebirth glow, pure black void background with floating ember particles, clean sharp vector lines, digital brutalist mythological creature, mathematical generative avian design, ethereal mathematical flame propagation patterns radiating from algorithmic divine bird, stunningly beautiful