# Core scientific stack
numpy>=1.24,<2.0
pandas>=1.5,<2.3
matplotlib>=3.6,<3.9
scikit-learn>=1.3,<1.5

# Console colors (core uses termcolor; Windows conversion via colorama)
termcolor>=2.4,<3.0
colorama>=0.4.6,<1.0

# Security / crypto (Ed25519 verify in pytheia_guard)
cryptography>=41,<43
