Refine VPN client design guidance for mode-aware motion

.codex/skills/design-vpn-client-ui/references/motion-and-interaction.md

@@ -4,6 +4,8 @@
 
 Aim for fluid, slightly viscous motion: noticeable, calm, and complete. Avoid bounce, elastic easing, abrupt unmounts, decorative page choreography, or tiny effects too weak to communicate feedback.
 
+Motion is functional feedback. If the system is running, refreshing, counting, switching route, or inviting interaction, show that activity with restrained movement. Do not animate every static decoration; animate the part that proves work, state, or affordance.
+
 Use exponential ease-out curves such as `cubic-bezier(0.16, 1, 0.3, 1)` for arrivals. Typical timing:
 
 - hover and press: 180-300 ms;
@@ -12,10 +14,19 @@ Use exponential ease-out curves such as `cubic-bezier(0.16, 1, 0.3, 1)` for arri
 - numeric tween and progress: about 900 ms;
 - copy feedback: about 800 ms;
 - server cascade: 620-760 ms per row with 90-110 ms stagger.
+- tooltip arrival: about 90-140 ms with almost no delay;
+- ambient affordance hint: one small cycle roughly every 10 seconds.
+
+## Cycle completion
+
+- On pointer leave, do not snap an infinite hover animation or reverse it from the middle. Mark it for stopping, let the current iteration reach its original coordinates, then remove the animation.
+- If the user re-enters before the iteration ends, clear the stop request and continue the same behavior.
+- Separate state transforms from repeating motion when both affect one control. Animate a child for the cycle and its wrapper for durable state, or wait for `animationiteration` before clearing the animated class.
+- Keep reduced-motion behavior immediate and static; never wait for an iteration event that will not fire.
 
 ## Power state
 
-- Transition gray to green slowly when connecting and green to gray when disconnecting.
+- Transition gray to the current mode accent slowly when connecting and back to gray when disconnecting.
 - Animate icon color, localized light, and SVG shadow together.
 - Let the light expand and brighten on enable, then contract and fade on disable.
 - Keep the hit target and all surrounding geometry fixed.
@@ -24,12 +35,22 @@ Use exponential ease-out curves such as `cubic-bezier(0.16, 1, 0.3, 1)` for arri
 ## Changing text and numbers
 
 - Put alternate labels in fixed-size slots.
-- Reveal connection title, timer, and hint with opacity plus light blur, never vertical layout movement.
-- Do not reanimate the timer every second; animate only its initial appearance.
+- Reveal connection title, timer, and hint with overlapping fixed layers, opacity, and light blur, never vertical layout movement.
+- Crossfade `VPN включён`, `Gateway подключён`, and disconnected copy in the same reserved slot when route state changes.
+- Split changing numeric values into stable digits. On a tick such as `33 → 34`, keep the first `3` mounted and animate only `3 → 4` with a soft color/glow/blur flow; avoid low-opacity blinking or scaling the whole seconds value.
+- Persist user-selected timer presentation locally and restore it on the next visit.
 - Tween numeric traffic values from old to new with `requestAnimationFrame` or an equivalent stable counter.
 - Animate progress width concurrently and add a brief glow that fully fades.
 - Never translate changing numbers if the user asked for a fluid morph; use numerical interpolation, opacity, color, blur, and light.
 
+## Mode switch affordance
+
+- Treat the Connect/Gateway brand as one state control with a foreground label, a background label, and two independently colored direction arrows.
+- On hover, move both labels continuously: let the foreground drift slightly down while the background rises toward it. Move the right arrow right and the left arrow left, then return; keep amplitudes small.
+- When mode changes, swap the arrows' positions smoothly and bring the new label to the foreground without changing the brand's centered geometry.
+- When hover ends, finish the current cycle at rest before stopping. Outside hover, replay one smaller cycle about every 10 seconds to hint that the control is clickable.
+- Keep explanatory tooltip geometry tied to the mode-label-to-arrows span, not to the entire Harbor wordmark.
+
 ## Refresh
 
 - Use a clean, symmetric SVG refresh icon aligned in the same flex row as its label.
@@ -37,7 +58,8 @@ Use exponential ease-out curves such as `cubic-bezier(0.16, 1, 0.3, 1)` for arri
 - Update data immediately when it arrives; finishing the icon cycle must not delay the data.
 - Manual refresh may replay meaningful data and server transitions.
 - Background polling should update quietly and must not repeatedly replay the server cascade.
-- On updated traffic, tween the number, advance the bar, and emit a visible but brief green flare.
+- On updated traffic, tween the number, advance the bar, and emit a visible but brief mode-accent flare.
+- Keep refresh tooltip outside the rotating button so it remains upright and unfiltered.
 
 ## Server cascade
 
@@ -52,9 +74,10 @@ Use exponential ease-out curves such as `cubic-bezier(0.16, 1, 0.3, 1)` for arri
 - Show the public domain while retaining the full URL internally.
 - Disable browser autocomplete suggestions and neutralize autofill backgrounds.
 - Hide the blinking caret when the paste-first interaction does not need it, while preserving keyboard input and focus outline.
-- When an existing subscription is being edited and the field is idle, use the green underline as a five-second timeout indicator: start bright, fade to quiet, then restore display mode.
+- When an existing subscription is being edited and the field is idle, use the mode-accent underline as a five-second timeout indicator: start bright, fade to quiet, then restore display mode.
 - Pause the timeout once the user enters content.
 - Close and clear unfinished input on outside click or Escape.
+- Animate the trash lid independently on hover. Open an inline, non-blocking confirmation surface instead of a browser-native confirm dialog.
 
 ## First-run initialization
 
@@ -68,7 +91,7 @@ Use exponential ease-out curves such as `cubic-bezier(0.16, 1, 0.3, 1)` for arri
 
 - Keep protocol buttons fixed-size and centered.
 - Copy the complete protocol URL while showing a shared address separately.
-- Overlay green `Copied` feedback in the same fixed box; do not append text or move the label.
+- Overlay mode-accent `Copied` feedback in the same fixed box; do not append text or move the label.
 - Make feedback appear immediately, hold briefly, and fade fully before restoring the original label. Keep the whole cycle near 800 ms.
 
 ## Reduced motion