modernize

- replace vite with tsdown
- update registry
- update deps

README.md

@@ -1,4 +1,4 @@
-<img alt="unom Logo" src="https://git.unom.io/unom/brand/raw/branch/master/logo/unom_Logo_Gradient.png" width="120"/>
+<img alt="unom Logo" src="https://git.unom.io/unom/brand/raw/commit/0e22e6c48b09371fb45c6dfb148419724372634e/logo/unom_Logo_Quad_Small_Gradient.png" width="100"/>
 
 ---
 # style
@@ -10,4 +10,39 @@ A collection of styling tools and assets for client applications.
 1. Clone the repository to your local machine
 2. Run `yarn install` or `npm install`
 3. To start development use `yarn start` or `npm start`
-4. For building a production build use `yarn build` or `npm build`
+4. For building a production build use `yarn build` or `npm build`
+
+---
+
+## Easings
+
+The `Easings` module provides a set of pre-configured cubic bezier easing curves for use with animation libraries like [Motion](https://motion.dev/) and [Framer Motion](https://www.framer.com/motion/). Each easing type exposes three variants — `in`, `out`, and `inOut` — each returning a fully formed transition config object ready to be spread directly into a Motion component's `animate`, `whileHover`, `transition`, or similar props.
+
+### Available easings
+
+- `sine`
+- `quad`
+- `cubic`
+- `quart`
+- `quint`
+- `expo`
+- `circ`
+- `back`
+- `elastic`
+- `bounce`
+
+### Variants
+
+Each easing function takes a `duration` (in seconds) and an optional `delay` (in seconds), and returns three transition configs:
+
+- **`in`** — starts slow, ends fast. Use for elements leaving the screen or fading out.
+- **`out`** — starts fast, ends slow. Use for elements entering the screen or settling into place.
+- **`inOut`** — decelerates symmetrically on both ends. Use for elements that move between two states on screen.
+```typescript
+
+import { ease } from '@unom/style';
+
+const cubicOut = ease.cubic(0.4).out;       // duration: 0.4s, no delay
+const quartInOut = ease.quart(0.6, 0.2).inOut;  // duration: 0.6s, delay: 0.2s
+```
+