--shadow-1
Resting card. 0 1px 2px rgba(14,36,68,0.06).
--shadow-2
Hover / lifted card. 0 4px 12px rgba(14,36,68,0.08).
--shadow-3
Floating modal / popover. 0 12px 32px rgba(14,36,68,0.14).
Three steps: resting, hover, floating. Shadows are tinted navy, not pure black — they sit naturally on the brand canvas.