Generate a hyper-detailed 3D render of brain cells (neurons) with intricate dendrites and axons. Show a dynamic neural network with synapses firing electrical impulses. The neurons should have a semi-transparent, organic appearance, with glowing synaptic connections in vibrant colors like neon blue, electric purple, and subtle orange highlights. The background should be a deep, soft gradient from dark blue to black, providing contrast to the illuminated neural activity. Ensure a highly realistic and futuristic style, capturing the complexity and elegance of the brain's cellular structure."