Add logical sizing utilities (inline-size, block-size) (tailwindlabs#19612)

## Summary

Adds new utilities for CSS logical properties that provide
writing-direction-aware alternatives to width and height:

- `inline-*` for `inline-size` (logical equivalent of width)
- `min-inline-*` for `min-inline-size` (logical equivalent of min-width)
- `max-inline-*` for `max-inline-size` (logical equivalent of max-width)
- `block-*` for `block-size` (logical equivalent of height)
- `min-block-*` for `min-block-size` (logical equivalent of min-height)
- `max-block-*` for `max-block-size` (logical equivalent of max-height)

## New Utilities

### inline-size utilities

| Class | CSS Property |
|-------|-------------|
| `inline-auto` | `inline-size: auto` |
| `inline-full` | `inline-size: 100%` |
| `inline-min` | `inline-size: min-content` |
| `inline-max` | `inline-size: max-content` |
| `inline-fit` | `inline-size: fit-content` |
| `inline-screen` | `inline-size: 100vw` |
| `inline-svw` | `inline-size: 100svw` |
| `inline-lvw` | `inline-size: 100lvw` |
| `inline-dvw` | `inline-size: 100dvw` |
| `inline-{spacing}` | `inline-size: {value}` (e.g., `inline-4`,
`inline-px`) |
| `inline-{fraction}` | `inline-size: {percent}` (e.g., `inline-1/2`,
`inline-3/4`) |
| `inline-[{value}]` | `inline-size: {value}` (arbitrary values) |

### min-inline-size utilities

| Class | CSS Property |
|-------|-------------|
| `min-inline-auto` | `min-inline-size: auto` |
| `min-inline-full` | `min-inline-size: 100%` |
| `min-inline-min` | `min-inline-size: min-content` |
| `min-inline-max` | `min-inline-size: max-content` |
| `min-inline-fit` | `min-inline-size: fit-content` |
| `min-inline-screen` | `min-inline-size: 100vw` |
| `min-inline-svw` | `min-inline-size: 100svw` |
| `min-inline-lvw` | `min-inline-size: 100lvw` |
| `min-inline-dvw` | `min-inline-size: 100dvw` |
| `min-inline-{spacing}` | `min-inline-size: {value}` |
| `min-inline-[{value}]` | `min-inline-size: {value}` (arbitrary values)
|

### max-inline-size utilities

| Class | CSS Property |
|-------|-------------|
| `max-inline-none` | `max-inline-size: none` |
| `max-inline-full` | `max-inline-size: 100%` |
| `max-inline-min` | `max-inline-size: min-content` |
| `max-inline-max` | `max-inline-size: max-content` |
| `max-inline-fit` | `max-inline-size: fit-content` |
| `max-inline-screen` | `max-inline-size: 100vw` |
| `max-inline-svw` | `max-inline-size: 100svw` |
| `max-inline-lvw` | `max-inline-size: 100lvw` |
| `max-inline-dvw` | `max-inline-size: 100dvw` |
| `max-inline-{spacing}` | `max-inline-size: {value}` |
| `max-inline-[{value}]` | `max-inline-size: {value}` (arbitrary values)
|

### block-size utilities

| Class | CSS Property |
|-------|-------------|
| `block-auto` | `block-size: auto` |
| `block-full` | `block-size: 100%` |
| `block-min` | `block-size: min-content` |
| `block-max` | `block-size: max-content` |
| `block-fit` | `block-size: fit-content` |
| `block-screen` | `block-size: 100vh` |
| `block-lh` | `block-size: 1lh` |
| `block-svh` | `block-size: 100svh` |
| `block-lvh` | `block-size: 100lvh` |
| `block-dvh` | `block-size: 100dvh` |
| `block-{spacing}` | `block-size: {value}` (e.g., `block-4`,
`block-px`) |
| `block-{fraction}` | `block-size: {percent}` (e.g., `block-1/2`,
`block-3/4`) |
| `block-[{value}]` | `block-size: {value}` (arbitrary values) |

### min-block-size utilities

| Class | CSS Property |
|-------|-------------|
| `min-block-auto` | `min-block-size: auto` |
| `min-block-full` | `min-block-size: 100%` |
| `min-block-min` | `min-block-size: min-content` |
| `min-block-max` | `min-block-size: max-content` |
| `min-block-fit` | `min-block-size: fit-content` |
| `min-block-screen` | `min-block-size: 100vh` |
| `min-block-lh` | `min-block-size: 1lh` |
| `min-block-svh` | `min-block-size: 100svh` |
| `min-block-lvh` | `min-block-size: 100lvh` |
| `min-block-dvh` | `min-block-size: 100dvh` |
| `min-block-{spacing}` | `min-block-size: {value}` |
| `min-block-[{value}]` | `min-block-size: {value}` (arbitrary values) |

### max-block-size utilities

| Class | CSS Property |
|-------|-------------|
| `max-block-none` | `max-block-size: none` |
| `max-block-full` | `max-block-size: 100%` |
| `max-block-min` | `max-block-size: min-content` |
| `max-block-max` | `max-block-size: max-content` |
| `max-block-fit` | `max-block-size: fit-content` |
| `max-block-screen` | `max-block-size: 100vh` |
| `max-block-lh` | `max-block-size: 1lh` |
| `max-block-svh` | `max-block-size: 100svh` |
| `max-block-lvh` | `max-block-size: 100lvh` |
| `max-block-dvh` | `max-block-size: 100dvh` |
| `max-block-{spacing}` | `max-block-size: {value}` |
| `max-block-[{value}]` | `max-block-size: {value}` (arbitrary values) |

## Test plan

- [x] Added comprehensive unit tests for all new utilities
- [ ] Verify utilities work correctly in RTL layouts
- [ ] Test with vertical writing modes

---------

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Robin Malfait <malfait.robin@gmail.com>

Author: 3 people

CHANGELOG.md

@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add `pbs-*`, `pbe-*`, `mbs-*`, `mbe-*`, `scroll-pbs-*`, `scroll-pbe-*`, `scroll-mbs-*`, `scroll-mbe-*`, `border-bs-*`, `border-be-*` utilities for `padding-block-start`, `padding-block-end`, `margin-block-start`, `margin-block-end`, `scroll-padding-block-start`, `scroll-padding-block-end`, `scroll-margin-block-start`, `scroll-margin-block-end`, `border-block-start`, and `border-block-end` ([`#19601`](https://github.com/tailwindlabs/tailwindcss/pull/19601))
 - _Experimental_: Add `@container-size` utility ([#18901](https://github.com/tailwindlabs/tailwindcss/pull/18901))
 - Add `@tailwindcss/webpack` loader for Tailwind CSS v4 ([#19610](https://github.com/tailwindlabs/tailwindcss/pull/19610))
+- Add `inline-*`, `min-inline-*`, `max-inline-*`, `block-*`, `min-block-*`, `max-block-*` utilities for `inline-size`, `min-inline-size`, `max-inline-size`, `block-size`, `min-block-size`, and `max-block-size` ([#19612](https://github.com/tailwindlabs/tailwindcss/pull/19612))
 
 ## [4.1.18] - 2025-12-11