/**
 * SF Pro Font Family
 * 
 * This file contains @font-face declarations for SF Pro font family.
 * SF Pro is Apple's system font, available on macOS and iOS devices.
 * For other platforms, we use the self-hosted font files.
 * 
 * The font-family declaration includes system font fallbacks for optimal performance
 * on Apple devices while providing self-hosted fonts for other platforms.
 */