ROLODEX GESTURES — on-device tracking, contacts never leave the page
☝️ Point up / down — spin the rolodex
🤏 Pinch + move up/down — scrub with inertia
✌️ Peace sign, hold — open the centered card
🤟 Three fingers, hold — dial the centered contact (ring fills, ✋ cancels)
✋ Open palm — idle / cancel
Wheel, drag, tap, and the A–Z rail all work too.