Bump tailwindcss from 3.4.17 to 4.0.0 in /frontend

[dependabot]

Bumps tailwindcss from 3.4.17 to 4.0.0.

Release notes

Sourced from tailwindcss's releases.

v4.0.0

Holy shit it's actually done — we just tagged Tailwind CSS v4.0.

Tailwind CSS v4.0 is an all-new version of the framework optimized for performance and flexibility, with a reimagined configuration and customization experience, and taking full advantage of the latest advancements the web platform has to offer.

• New high-performance engine — where full builds are up to 5x faster, and incremental builds are over 100x faster — and measured in microseconds.
• Designed for the modern web — built on cutting-edge CSS features like cascade layers, registered custom properties with @property, and color-mix().
• Simplified installation — fewer dependencies, zero configuration, and just a single line of code in your CSS file.
• First-party Vite plugin — tight integration for maximum performance and minimum configuration.
• Automatic content detection — all of your template files are discovered automatically, with no configuration required.
• Built-in import support — no additional tooling necessary to bundle multiple CSS files.
• CSS-first configuration — a reimagined developer experience where you customize and extend the framework directly in CSS instead of a JavaScript configuration file.
• CSS theme variables — all of your design tokens exposed as native CSS variables so you can access them anywhere.
• Dynamic utility values and variants — stop guessing what values exist in your spacing scale, or extending your configuration for things like basic data attributes.
• Modernized P3 color palette — a redesigned, more vivid color palette that takes full advantage of modern display technology.
• Container queries — first-class APIs for styling elements based on their container size, no plugins required.
• New 3D transform utilities — transform elements in 3D space directly in your HTML.
• Expanded gradient APIs — radial and conic gradients, interpolation modes, and more.
• @​starting-style support — a new variant you can use to create enter and exit transitions, without the need for JavaScript.
• not-* variant — style an element only when it doesn't match another variant, custom selector, or media or feature query.
• Even more new utilities and variants — including support for color-scheme, field-sizing, complex shadows, inert, and more.

Start using Tailwind CSS v4.0 today by installing it in a new project, or playing with it directly in the browser on Tailwind Play.

For existing projects, we've published a comprehensive upgrade guide and built an automated upgrade tool to get you on the latest version as quickly and painlessly as possible.

For a deep-dive into everything that's new, check out the announcement post.

v4.0.0-beta.10

Added

• Add support for using @variant to use variants in your CSS (#15663)
• Include outline-color when transitioning colors (#15690)

Fixed

• Add missing main and browser fields for @tailwindcss/browser (#15594)
• Support escaping * in theme namespace syntax (e.g.: --color-\*: initial;) (#15603)
• Respect @theme options when resolving values in custom functional utilities (#15623)
• Discard invalid variants (e.g. data-checked-[selected=1]:*) (#15629)
• Ensure -outline-offset-* utilities are suggested in IntelliSense (#15646)
• Write to stdout when --output is set to - or omitted with @tailwindcss/cli (#15656)
• Prevent not-* from being used with variants that have multiple sibling rules (#15689)
• Upgrade (experimental): Pretty print --spacing(…) to prevent ambiguity (#15596)

Changed

• Use more modern --alpha(color / 50%) syntax instead of --alpha(color, 50%) (#15665)

... (truncated)

Changelog

Sourced from tailwindcss's changelog.

[4.0.0] - 2025-01-21

[4.0.0-beta.10] - 2025-01-21

Added

• Add support for using @variant to use variants in your CSS (#15663)
• Include outline-color when transitioning colors (#15690)

Fixed

• Add missing main and browser fields for @tailwindcss/browser (#15594)
• Support escaping * in theme namespace syntax (e.g.: --color-\*: initial;) (#15603)
• Respect @theme options when resolving values in custom functional utilities (#15623)
• Discard invalid variants (e.g. data-checked-[selected=1]:*) (#15629)
• Ensure -outline-offset-* utilities are suggested in IntelliSense (#15646)
• Write to stdout when --output is set to - or omitted with @tailwindcss/cli (#15656)
• Prevent not-* from being used with variants that have multiple sibling rules (#15689)
• Upgrade (experimental): Pretty print --spacing(…) to prevent ambiguity (#15596)

Changed

• Use more modern --alpha(color / 50%) syntax instead of --alpha(color, 50%) (#15665)
• Rename @variant to @custom-variant (#15663)
• Change outline-hidden to set outline-style: none except in forced colors mode (#15690)

[4.0.0-beta.9] - 2025-01-09

Added

• Add @tailwindcss/browser package to run Tailwind CSS in the browser (#15558)
• Add @reference "…" API as a replacement for the previous @import "…" reference option (#15565)
• Add support for defining functional utilities in CSS (#15455)
• Add new --spacing(…), --alpha(…), and --theme(…) CSS functions (#15572)
• Add musl-based Linux builds of the standalone CLI (#15567)
• Improve performance of internal AST manipulations (#15529)

Fixed

• Use the correct property value for place-content-between, place-content-around, and place-content-evenly utilities (#15440)
• Don’t detect arbitrary properties when preceded by an escape (#15456)
• Fix incorrectly named bg-round and bg-space utilities to bg-repeat-round to bg-repeat-space (#15462)
• Fix inset-shadow-* suggestions in IntelliSense (#15471)
• Only compile arbitrary values ending in ] (#15503)
• Ensure @apply rules are processed in the correct order (#15542)
• Allow negative utility names in @utility (#15573)
• Remove all @keyframes contributed by JavaScript plugins when using @reference imports (#15581)
• Upgrade (experimental): Do not extract class names from functions (e.g. shadow in filter: 'drop-shadow(…)') (#15566)
• Upgrade (experimental): Migrate theme(spacing.2) to --spacing(2) (#15579)
• Upgrade (experimental): Migrate theme(…) to --theme(…) (#15579)

... (truncated)

Commits

• a8c54ac Prepare v4.0.0 release (#15693)
• 8a97a6a v4.0.0-beta.10 (#15691)
• 4820f6b Transition outline-color (#15690)
• 79f21a8 Prevent not-* from being used with variants with multiple sibling rules (#1...
• 4035ab0 Implement @variant (#15663)
• a51b214 Use more modern --alpha(color / 50%) syntax (#15665)
• 2f8c517 Ensure -outline-offset-* utilities are suggested in IntelliSense (#15646)
• 528c848 Discard invalid variants such as data-checked-[selected=1]:* (#15629)
• 2de644b Remove @property fallbacks for Firefox (#15622)
• da2da51 Resolve values in functional utilities based on @theme options (#15623)
• Additional commits viewable in compare view

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