diff --git a/bin/build_package.js b/bin/build_package.js
index ee3054d253d..ed83b079a82 100644
--- a/bin/build_package.js
+++ b/bin/build_package.js
@@ -7,7 +7,7 @@ const path = require('node:path');
 const fs = require('node:fs');
 const glob = require('glob');
 const rollup = require('rollup');
-const CleanCSS = require('clean-css');
+const LightningCSS = require('lightningcss');
 const { getRollupConfiguration } = require('./rollup');
 
 const args = parseArgs({
@@ -70,7 +70,12 @@ async function main() {
 
         console.log('Minifying CSS...');
         const css = await fs.promises.readFile(inputStyleFile, 'utf-8');
-        const minified = new CleanCSS().minify(css).styles;
+        const { code: minified } = LightningCSS.transform({
+            filename: path.basename(inputStyleFile, '.css'),
+            code: Buffer.from(css),
+            minify: true,
+            sourceMap: false, // TODO: Maybe we can add source maps later? :)
+        });
         await fs.promises.writeFile(inputStyleFileDist, minified);
     };
 
diff --git a/package.json b/package.json
index e48cff66ba9..6f0b53732a6 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
         "@rollup/plugin-typescript": "^11.1.6",
         "@symfony/stimulus-testing": "^2.0.1",
         "@vitest/browser": "^2.1.1",
-        "clean-css": "^5.3.3",
+        "lightningcss": "^1.28.2",
         "playwright": "^1.47.0",
         "rollup": "^4.22.5",
         "tslib": "^2.6.3",
diff --git a/src/Dropzone/assets/dist/style.min.css b/src/Dropzone/assets/dist/style.min.css
index df4fdd88585..4c1e49daedb 100644
--- a/src/Dropzone/assets/dist/style.min.css
+++ b/src/Dropzone/assets/dist/style.min.css
@@ -1 +1 @@
-.dropzone-container{position:relative;display:flex;min-height:100px;border:2px dashed #bbb;align-items:center;padding:20px 10px}.dropzone-input{position:absolute;display:block;top:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer;z-index:1}.dropzone-preview{display:flex;align-items:center;max-width:100%}.dropzone-preview-image{flex-basis:0;min-width:50px;max-width:50px;height:50px;margin-right:10px;background-size:contain;background-position:50% 50%;background-repeat:no-repeat}.dropzone-preview-filename{word-wrap:anywhere}.dropzone-preview-button{position:absolute;top:0;right:0;z-index:1;border:none;margin:0;padding:0;width:auto;overflow:visible;background:0 0;color:inherit;font:inherit;line-height:normal;-webkit-font-smoothing:inherit;-moz-osx-font-smoothing:inherit;-webkit-appearance:none}.dropzone-preview-button::before{content:'×';padding:3px 7px;cursor:pointer}.dropzone-placeholder{flex-grow:1;text-align:center;color:#999}
\ No newline at end of file
+.dropzone-container{border:2px dashed #bbb;align-items:center;min-height:100px;padding:20px 10px;display:flex;position:relative}.dropzone-input{opacity:0;cursor:pointer;z-index:1;width:100%;height:100%;display:block;position:absolute;top:0;left:0}.dropzone-preview{align-items:center;max-width:100%;display:flex}.dropzone-preview-image{background-position:50%;background-repeat:no-repeat;background-size:contain;flex-basis:0;min-width:50px;max-width:50px;height:50px;margin-right:10px}.dropzone-preview-filename{word-wrap:anywhere}.dropzone-preview-button{z-index:1;width:auto;color:inherit;font:inherit;-webkit-font-smoothing:inherit;-moz-osx-font-smoothing:inherit;-webkit-appearance:none;background:0 0;border:none;margin:0;padding:0;line-height:normal;position:absolute;top:0;right:0;overflow:visible}.dropzone-preview-button:before{content:"×";cursor:pointer;padding:3px 7px}.dropzone-placeholder{text-align:center;color:#999;flex-grow:1}
\ No newline at end of file
diff --git a/src/LiveComponent/assets/dist/live.min.css b/src/LiveComponent/assets/dist/live.min.css
index 19c9c91a4bb..df7a2da8fe0 100644
--- a/src/LiveComponent/assets/dist/live.min.css
+++ b/src/LiveComponent/assets/dist/live.min.css
@@ -1 +1 @@
-[data-loading=""],[data-loading="delay|show"],[data-loading=show]{display:none}
\ No newline at end of file
+[data-loading=""],[data-loading=show],[data-loading=delay\|show]{display:none}
\ No newline at end of file
diff --git a/src/TogglePassword/assets/dist/style.min.css b/src/TogglePassword/assets/dist/style.min.css
index 858d9467aea..899c560e98f 100644
--- a/src/TogglePassword/assets/dist/style.min.css
+++ b/src/TogglePassword/assets/dist/style.min.css
@@ -1 +1 @@
-.toggle-password-container{position:relative}.toggle-password-icon{height:1rem;width:1rem}.toggle-password-button{align-items:center;background-color:transparent;border:none;column-gap:.25rem;display:flex;flex-direction:row;font-size:.875rem;justify-items:center;height:1rem;line-height:1.25rem;position:absolute;right:.5rem;top:-1.25rem}
\ No newline at end of file
+.toggle-password-container{position:relative}.toggle-password-icon{width:1rem;height:1rem}.toggle-password-button{background-color:#0000;border:none;flex-direction:row;place-items:center;column-gap:.25rem;height:1rem;font-size:.875rem;line-height:1.25rem;display:flex;position:absolute;top:-1.25rem;right:.5rem}
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index 27e8d369234..5aeb6d659b4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4423,15 +4423,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"clean-css@npm:^5.3.3":
-  version: 5.3.3
-  resolution: "clean-css@npm:5.3.3"
-  dependencies:
-    source-map: "npm:~0.6.0"
-  checksum: 10c0/381de7523e23f3762eb180e327dcc0cedafaf8cb1cd8c26b7cc1fc56e0829a92e734729c4f955394d65ed72fb62f82d8baf78af34b33b8a7d41ebad2accdd6fb
-  languageName: node
-  linkType: hard
-
 "clean-stack@npm:^2.0.0":
   version: 2.2.0
   resolution: "clean-stack@npm:2.2.0"
@@ -4903,6 +4894,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"detect-libc@npm:^1.0.3":
+  version: 1.0.3
+  resolution: "detect-libc@npm:1.0.3"
+  bin:
+    detect-libc: ./bin/detect-libc.js
+  checksum: 10c0/4da0deae9f69e13bc37a0902d78bf7169480004b1fed3c19722d56cff578d16f0e11633b7fbf5fb6249181236c72e90024cbd68f0b9558ae06e281f47326d50d
+  languageName: node
+  linkType: hard
+
 "detect-newline@npm:^3.0.0":
   version: 3.1.0
   resolution: "detect-newline@npm:3.1.0"
@@ -7132,6 +7132,116 @@ __metadata:
   languageName: node
   linkType: hard
 
+"lightningcss-darwin-arm64@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-darwin-arm64@npm:1.28.2"
+  conditions: os=darwin & cpu=arm64
+  languageName: node
+  linkType: hard
+
+"lightningcss-darwin-x64@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-darwin-x64@npm:1.28.2"
+  conditions: os=darwin & cpu=x64
+  languageName: node
+  linkType: hard
+
+"lightningcss-freebsd-x64@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-freebsd-x64@npm:1.28.2"
+  conditions: os=freebsd & cpu=x64
+  languageName: node
+  linkType: hard
+
+"lightningcss-linux-arm-gnueabihf@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-linux-arm-gnueabihf@npm:1.28.2"
+  conditions: os=linux & cpu=arm
+  languageName: node
+  linkType: hard
+
+"lightningcss-linux-arm64-gnu@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-linux-arm64-gnu@npm:1.28.2"
+  conditions: os=linux & cpu=arm64 & libc=glibc
+  languageName: node
+  linkType: hard
+
+"lightningcss-linux-arm64-musl@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-linux-arm64-musl@npm:1.28.2"
+  conditions: os=linux & cpu=arm64 & libc=musl
+  languageName: node
+  linkType: hard
+
+"lightningcss-linux-x64-gnu@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-linux-x64-gnu@npm:1.28.2"
+  conditions: os=linux & cpu=x64 & libc=glibc
+  languageName: node
+  linkType: hard
+
+"lightningcss-linux-x64-musl@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-linux-x64-musl@npm:1.28.2"
+  conditions: os=linux & cpu=x64 & libc=musl
+  languageName: node
+  linkType: hard
+
+"lightningcss-win32-arm64-msvc@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-win32-arm64-msvc@npm:1.28.2"
+  conditions: os=win32 & cpu=arm64
+  languageName: node
+  linkType: hard
+
+"lightningcss-win32-x64-msvc@npm:1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss-win32-x64-msvc@npm:1.28.2"
+  conditions: os=win32 & cpu=x64
+  languageName: node
+  linkType: hard
+
+"lightningcss@npm:^1.28.2":
+  version: 1.28.2
+  resolution: "lightningcss@npm:1.28.2"
+  dependencies:
+    detect-libc: "npm:^1.0.3"
+    lightningcss-darwin-arm64: "npm:1.28.2"
+    lightningcss-darwin-x64: "npm:1.28.2"
+    lightningcss-freebsd-x64: "npm:1.28.2"
+    lightningcss-linux-arm-gnueabihf: "npm:1.28.2"
+    lightningcss-linux-arm64-gnu: "npm:1.28.2"
+    lightningcss-linux-arm64-musl: "npm:1.28.2"
+    lightningcss-linux-x64-gnu: "npm:1.28.2"
+    lightningcss-linux-x64-musl: "npm:1.28.2"
+    lightningcss-win32-arm64-msvc: "npm:1.28.2"
+    lightningcss-win32-x64-msvc: "npm:1.28.2"
+  dependenciesMeta:
+    lightningcss-darwin-arm64:
+      optional: true
+    lightningcss-darwin-x64:
+      optional: true
+    lightningcss-freebsd-x64:
+      optional: true
+    lightningcss-linux-arm-gnueabihf:
+      optional: true
+    lightningcss-linux-arm64-gnu:
+      optional: true
+    lightningcss-linux-arm64-musl:
+      optional: true
+    lightningcss-linux-x64-gnu:
+      optional: true
+    lightningcss-linux-x64-musl:
+      optional: true
+    lightningcss-win32-arm64-msvc:
+      optional: true
+    lightningcss-win32-x64-msvc:
+      optional: true
+  checksum: 10c0/3318770bc7cce1d18acd219ea1e988456b6a5f90a4c09cf12c9ef39c5d4fafff9ba18e798f828131c6d9ece9ae8d544de670becb226ed16e243353c88abc9b41
+  languageName: node
+  linkType: hard
+
 "lines-and-columns@npm:^1.1.6":
   version: 1.2.4
   resolution: "lines-and-columns@npm:1.2.4"
@@ -8683,7 +8793,7 @@ __metadata:
     "@rollup/plugin-typescript": "npm:^11.1.6"
     "@symfony/stimulus-testing": "npm:^2.0.1"
     "@vitest/browser": "npm:^2.1.1"
-    clean-css: "npm:^5.3.3"
+    lightningcss: "npm:^1.28.2"
     playwright: "npm:^1.47.0"
     rollup: "npm:^4.22.5"
     tslib: "npm:^2.6.3"
@@ -9028,7 +9138,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"source-map@npm:^0.6.0, source-map@npm:^0.6.1, source-map@npm:~0.6.0, source-map@npm:~0.6.1":
+"source-map@npm:^0.6.0, source-map@npm:^0.6.1, source-map@npm:~0.6.1":
   version: 0.6.1
   resolution: "source-map@npm:0.6.1"
   checksum: 10c0/ab55398007c5e5532957cb0beee2368529618ac0ab372d789806f5718123cc4367d57de3904b4e6a4170eb5a0b0f41373066d02ca0735a0c4d75c7d328d3e011