diff --git a/docusaurus.config.ts b/docusaurus.config.ts
index 62c75ab..608706b 100644
--- a/docusaurus.config.ts
+++ b/docusaurus.config.ts
@@ -60,8 +60,7 @@ const config: Config = {
       return {
         name: 'tailwindcss-docusaurus',
         configurePostCss(postcssOptions: {plugins: unknown[]}) {
-          postcssOptions.plugins.push(require('tailwindcss'));
-          postcssOptions.plugins.push(require('autoprefixer'));
+          postcssOptions.plugins.push(require('@tailwindcss/postcss'));
           return postcssOptions;
         },
       };
diff --git a/package-lock.json b/package-lock.json
index 45c44a8..1477f8a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,12 +12,13 @@
         "@docusaurus/faster": "3.10.0",
         "@docusaurus/preset-classic": "3.10.0",
         "@mdx-js/react": "^3.0.0",
+        "@tailwindcss/postcss": "^4.2.2",
         "clsx": "^2.0.0",
         "lucide-react": "^1.8.0",
         "prism-react-renderer": "^2.3.0",
         "react": "^19.0.0",
         "react-dom": "^19.0.0",
-        "tailwindcss": "^3.4.19"
+        "tailwindcss": "^4.2.2"
       },
       "devDependencies": {
         "@docusaurus/module-type-aliases": "3.10.0",
@@ -6000,6 +6001,271 @@
         "node": ">=14.16"
       }
     },
+    "node_modules/@tailwindcss/node": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/node/-/node-4.2.2.tgz",
+      "integrity": "sha512-pXS+wJ2gZpVXqFaUEjojq7jzMpTGf8rU6ipJz5ovJV6PUGmlJ+jvIwGrzdHdQ80Sg+wmQxUFuoW1UAAwHNEdFA==",
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/remapping": "^2.3.5",
+        "enhanced-resolve": "^5.19.0",
+        "jiti": "^2.6.1",
+        "lightningcss": "1.32.0",
+        "magic-string": "^0.30.21",
+        "source-map-js": "^1.2.1",
+        "tailwindcss": "4.2.2"
+      }
+    },
+    "node_modules/@tailwindcss/node/node_modules/jiti": {
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/jiti/-/jiti-2.6.1.tgz",
+      "integrity": "sha512-ekilCSN1jwRvIbgeg/57YFh8qQDNbwDb9xT/qu2DAHbFFZUicIl4ygVaAvzveMhMVr3LnpSKTNnwt8PoOfmKhQ==",
+      "license": "MIT",
+      "bin": {
+        "jiti": "lib/jiti-cli.mjs"
+      }
+    },
+    "node_modules/@tailwindcss/oxide": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide/-/oxide-4.2.2.tgz",
+      "integrity": "sha512-qEUA07+E5kehxYp9BVMpq9E8vnJuBHfJEC0vPC5e7iL/hw7HR61aDKoVoKzrG+QKp56vhNZe4qwkRmMC0zDLvg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 20"
+      },
+      "optionalDependencies": {
+        "@tailwindcss/oxide-android-arm64": "4.2.2",
+        "@tailwindcss/oxide-darwin-arm64": "4.2.2",
+        "@tailwindcss/oxide-darwin-x64": "4.2.2",
+        "@tailwindcss/oxide-freebsd-x64": "4.2.2",
+        "@tailwindcss/oxide-linux-arm-gnueabihf": "4.2.2",
+        "@tailwindcss/oxide-linux-arm64-gnu": "4.2.2",
+        "@tailwindcss/oxide-linux-arm64-musl": "4.2.2",
+        "@tailwindcss/oxide-linux-x64-gnu": "4.2.2",
+        "@tailwindcss/oxide-linux-x64-musl": "4.2.2",
+        "@tailwindcss/oxide-wasm32-wasi": "4.2.2",
+        "@tailwindcss/oxide-win32-arm64-msvc": "4.2.2",
+        "@tailwindcss/oxide-win32-x64-msvc": "4.2.2"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-android-arm64": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-android-arm64/-/oxide-android-arm64-4.2.2.tgz",
+      "integrity": "sha512-dXGR1n+P3B6748jZO/SvHZq7qBOqqzQ+yFrXpoOWWALWndF9MoSKAT3Q0fYgAzYzGhxNYOoysRvYlpixRBBoDg==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "android"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-darwin-arm64": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-darwin-arm64/-/oxide-darwin-arm64-4.2.2.tgz",
+      "integrity": "sha512-iq9Qjr6knfMpZHj55/37ouZeykwbDqF21gPFtfnhCCKGDcPI/21FKC9XdMO/XyBM7qKORx6UIhGgg6jLl7BZlg==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-darwin-x64": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-darwin-x64/-/oxide-darwin-x64-4.2.2.tgz",
+      "integrity": "sha512-BlR+2c3nzc8f2G639LpL89YY4bdcIdUmiOOkv2GQv4/4M0vJlpXEa0JXNHhCHU7VWOKWT/CjqHdTP8aUuDJkuw==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-freebsd-x64": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-freebsd-x64/-/oxide-freebsd-x64-4.2.2.tgz",
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+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "freebsd"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-linux-arm-gnueabihf": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-linux-arm-gnueabihf/-/oxide-linux-arm-gnueabihf-4.2.2.tgz",
+      "integrity": "sha512-FPdhvsW6g06T9BWT0qTwiVZYE2WIFo2dY5aCSpjG/S/u1tby+wXoslXS0kl3/KXnULlLr1E3NPRRw0g7t2kgaQ==",
+      "cpu": [
+        "arm"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-linux-arm64-gnu": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-linux-arm64-gnu/-/oxide-linux-arm64-gnu-4.2.2.tgz",
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+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-linux-arm64-musl": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-linux-arm64-musl/-/oxide-linux-arm64-musl-4.2.2.tgz",
+      "integrity": "sha512-oCfG/mS+/+XRlwNjnsNLVwnMWYH7tn/kYPsNPh+JSOMlnt93mYNCKHYzylRhI51X+TbR+ufNhhKKzm6QkqX8ag==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-linux-x64-gnu": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-linux-x64-gnu/-/oxide-linux-x64-gnu-4.2.2.tgz",
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+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-linux-x64-musl": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-linux-x64-musl/-/oxide-linux-x64-musl-4.2.2.tgz",
+      "integrity": "sha512-XW3t3qwbIwiSyRCggeO2zxe3KWaEbM0/kW9e8+0XpBgyKU4ATYzcVSMKteZJ1iukJ3HgHBjbg9P5YPRCVUxlnQ==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-wasm32-wasi": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-wasm32-wasi/-/oxide-wasm32-wasi-4.2.2.tgz",
+      "integrity": "sha512-eKSztKsmEsn1O5lJ4ZAfyn41NfG7vzCg496YiGtMDV86jz1q/irhms5O0VrY6ZwTUkFy/EKG3RfWgxSI3VbZ8Q==",
+      "bundleDependencies": [
+        "@napi-rs/wasm-runtime",
+        "@emnapi/core",
+        "@emnapi/runtime",
+        "@tybys/wasm-util",
+        "@emnapi/wasi-threads",
+        "tslib"
+      ],
+      "cpu": [
+        "wasm32"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "@emnapi/core": "^1.8.1",
+        "@emnapi/runtime": "^1.8.1",
+        "@emnapi/wasi-threads": "^1.1.0",
+        "@napi-rs/wasm-runtime": "^1.1.1",
+        "@tybys/wasm-util": "^0.10.1",
+        "tslib": "^2.8.1"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-win32-arm64-msvc": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-win32-arm64-msvc/-/oxide-win32-arm64-msvc-4.2.2.tgz",
+      "integrity": "sha512-qPmaQM4iKu5mxpsrWZMOZRgZv1tOZpUm+zdhhQP0VhJfyGGO3aUKdbh3gDZc/dPLQwW4eSqWGrrcWNBZWUWaXQ==",
+      "cpu": [
+        "arm64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/oxide-win32-x64-msvc": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-win32-x64-msvc/-/oxide-win32-x64-msvc-4.2.2.tgz",
+      "integrity": "sha512-1T/37VvI7WyH66b+vqHj/cLwnCxt7Qt3WFu5Q8hk65aOvlwAhs7rAp1VkulBJw/N4tMirXjVnylTR72uI0HGcA==",
+      "cpu": [
+        "x64"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "win32"
+      ],
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "node_modules/@tailwindcss/postcss": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/@tailwindcss/postcss/-/postcss-4.2.2.tgz",
+      "integrity": "sha512-n4goKQbW8RVXIbNKRB/45LzyUqN451deQK0nzIeauVEqjlI49slUlgKYJM2QyUzap/PcpnS7kzSUmPb1sCRvYQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@alloc/quick-lru": "^5.2.0",
+        "@tailwindcss/node": "4.2.2",
+        "@tailwindcss/oxide": "4.2.2",
+        "postcss": "^8.5.6",
+        "tailwindcss": "4.2.2"
+      }
+    },
     "node_modules/@tybys/wasm-util": {
       "version": "0.10.1",
       "resolved": "https://registry.npmjs.org/@tybys/wasm-util/-/wasm-util-0.10.1.tgz",
@@ -6830,12 +7096,6 @@
         "url": "https://github.com/chalk/ansi-styles?sponsor=1"
       }
     },
-    "node_modules/any-promise": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz",
-      "integrity": "sha512-7UvmKalWRt1wgjL1RrGxoSJW/0QZFIegpeGvZG9kjp8vrRu55XTHbwnqq2GpXm9uLbcuhxm3IqX9OB4MZR1b2A==",
-      "license": "MIT"
-    },
     "node_modules/anymatch": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz",
@@ -7361,15 +7621,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/camelcase-css": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/camelcase-css/-/camelcase-css-2.0.1.tgz",
-      "integrity": "sha512-QOSvevhslijgYwRx6Rv7zKdMF8lbRmx+uQGx2+vDc+KI/eBnsy9kit5aj23AgGu3pa4t9AgwbnXWqS+iOY+2aA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 6"
-      }
-    },
     "node_modules/caniuse-api": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/caniuse-api/-/caniuse-api-3.0.0.tgz",
@@ -8726,12 +8977,6 @@
         "url": "https://github.com/sponsors/wooorm"
       }
     },
-    "node_modules/didyoumean": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/didyoumean/-/didyoumean-1.2.2.tgz",
-      "integrity": "sha512-gxtyfqMg7GKyhQmb056K7M3xszy/myH8w+B4RT+QXBQsvAOdc3XymqDDPHx1BgPgsdAA5SIifona89YtRATDzw==",
-      "license": "Apache-2.0"
-    },
     "node_modules/dir-glob": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/dir-glob/-/dir-glob-3.0.1.tgz",
@@ -8744,12 +8989,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/dlv": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/dlv/-/dlv-1.1.3.tgz",
-      "integrity": "sha512-+HlytyjlPKnIG8XuRG8WvmBP8xs8P71y+SKKS6ZXWoEgLuePxtDoUEiH7WkdePWrQ5JBpE6aoVqfZfJUQkjXwA==",
-      "license": "MIT"
-    },
     "node_modules/dns-packet": {
       "version": "5.6.1",
       "resolved": "https://registry.npmjs.org/dns-packet/-/dns-packet-5.6.1.tgz",
@@ -9502,23 +9741,6 @@
         "node": ">=0.8.0"
       }
     },
-    "node_modules/fdir": {
-      "version": "6.5.0",
-      "resolved": "https://registry.npmjs.org/fdir/-/fdir-6.5.0.tgz",
-      "integrity": "sha512-tIbYtZbucOs0BRGqPJkshJUYdL+SDH7dVM8gjy+ERp3WAUjLEFJE+02kanyHtwjWOnwrKYBiwAmM0p4kLJAnXg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=12.0.0"
-      },
-      "peerDependencies": {
-        "picomatch": "^3 || ^4"
-      },
-      "peerDependenciesMeta": {
-        "picomatch": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/feed": {
       "version": "4.2.2",
       "resolved": "https://registry.npmjs.org/feed/-/feed-4.2.2.tgz",
@@ -11704,6 +11926,15 @@
         "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0"
       }
     },
+    "node_modules/magic-string": {
+      "version": "0.30.21",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.21.tgz",
+      "integrity": "sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/sourcemap-codec": "^1.5.5"
+      }
+    },
     "node_modules/markdown-extensions": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/markdown-extensions/-/markdown-extensions-2.0.0.tgz",
@@ -14152,17 +14383,6 @@
         "multicast-dns": "cli.js"
       }
     },
-    "node_modules/mz": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/mz/-/mz-2.7.0.tgz",
-      "integrity": "sha512-z81GNO7nnYMEhrGh9LeymoE4+Yr0Wn5McHIZMK5cfQCl+NDX08sCZgUc9/6MHni9IWuFLm1Z3HTCXu2z9fN62Q==",
-      "license": "MIT",
-      "dependencies": {
-        "any-promise": "^1.0.0",
-        "object-assign": "^4.0.1",
-        "thenify-all": "^1.0.0"
-      }
-    },
     "node_modules/nanoid": {
       "version": "3.3.11",
       "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.11.tgz",
@@ -14772,36 +14992,6 @@
       "integrity": "sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==",
       "license": "ISC"
     },
-    "node_modules/picomatch": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.4.tgz",
-      "integrity": "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/jonschlinkert"
-      }
-    },
-    "node_modules/pify": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
-      "integrity": "sha512-udgsAY+fTnvv7kI7aaxbqwWNb0AHiB0qBO89PZKPkoTmGOgdbrHDKD+0B2X4uTfJ/FT1R09r9gTsjUjNJotuog==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/pirates": {
-      "version": "4.0.7",
-      "resolved": "https://registry.npmjs.org/pirates/-/pirates-4.0.7.tgz",
-      "integrity": "sha512-TfySrs/5nm8fQJDcBDuUng3VOUKsd7S+zqvbOTiGXHfxX4wK31ard+hoNuvkicM/2YFzlpDgABOevKSsB4G/FA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 6"
-      }
-    },
     "node_modules/pkg-dir": {
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       "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-7.0.0.tgz",
@@ -15405,23 +15595,6 @@
         "postcss": "^8.4"
       }
     },
-    "node_modules/postcss-import": {
-      "version": "15.1.0",
-      "resolved": "https://registry.npmjs.org/postcss-import/-/postcss-import-15.1.0.tgz",
-      "integrity": "sha512-hpr+J05B2FVYUAXHeK1YyI267J/dDDhMU6B6civm8hSY1jYJnBXxzKDKDswzJmtLHryrjhnDjqqp/49t8FALew==",
-      "license": "MIT",
-      "dependencies": {
-        "postcss-value-parser": "^4.0.0",
-        "read-cache": "^1.0.0",
-        "resolve": "^1.1.7"
-      },
-      "engines": {
-        "node": ">=14.0.0"
-      },
-      "peerDependencies": {
-        "postcss": "^8.0.0"
-      }
-    },
     "node_modules/postcss-lab-function": {
       "version": "7.0.12",
       "resolved": "https://registry.npmjs.org/postcss-lab-function/-/postcss-lab-function-7.0.12.tgz",
@@ -16727,15 +16900,6 @@
         "react": ">=15"
       }
     },
-    "node_modules/read-cache": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/read-cache/-/read-cache-1.0.0.tgz",
-      "integrity": "sha512-Owdv/Ft7IjOgm/i0xvNDZ1LrRANRfew4b2prF3OWMQLxLfu3bS8FVhCsrSCMK4lR56Y9ya+AThoTpDCTxCmpRA==",
-      "license": "MIT",
-      "dependencies": {
-        "pify": "^2.3.0"
-      }
-    },
     "node_modules/readable-stream": {
       "version": "3.6.2",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
@@ -18186,37 +18350,6 @@
         "postcss": "^8.4.31"
       }
     },
-    "node_modules/sucrase": {
-      "version": "3.35.1",
-      "resolved": "https://registry.npmjs.org/sucrase/-/sucrase-3.35.1.tgz",
-      "integrity": "sha512-DhuTmvZWux4H1UOnWMB3sk0sbaCVOoQZjv8u1rDoTV0HTdGem9hkAZtl4JZy8P2z4Bg0nT+YMeOFyVr4zcG5Tw==",
-      "license": "MIT",
-      "dependencies": {
-        "@jridgewell/gen-mapping": "^0.3.2",
-        "commander": "^4.0.0",
-        "lines-and-columns": "^1.1.6",
-        "mz": "^2.7.0",
-        "pirates": "^4.0.1",
-        "tinyglobby": "^0.2.11",
-        "ts-interface-checker": "^0.1.9"
-      },
-      "bin": {
-        "sucrase": "bin/sucrase",
-        "sucrase-node": "bin/sucrase-node"
-      },
-      "engines": {
-        "node": ">=16 || 14 >=14.17"
-      }
-    },
-    "node_modules/sucrase/node_modules/commander": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-4.1.1.tgz",
-      "integrity": "sha512-NOKm8xhkzAjzFx8B2v5OAHT+u5pRQc2UCa2Vq9jYL/31o2wi9mxBA7LIFs3sV5VSC49z6pEhfbMULvShKj26WA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 6"
-      }
-    },
     "node_modules/supports-color": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
@@ -18295,154 +18428,10 @@
       }
     },
     "node_modules/tailwindcss": {
-      "version": "3.4.19",
-      "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-3.4.19.tgz",
-      "integrity": "sha512-3ofp+LL8E+pK/JuPLPggVAIaEuhvIz4qNcf3nA1Xn2o/7fb7s/TYpHhwGDv1ZU3PkBluUVaF8PyCHcm48cKLWQ==",
-      "license": "MIT",
-      "dependencies": {
-        "@alloc/quick-lru": "^5.2.0",
-        "arg": "^5.0.2",
-        "chokidar": "^3.6.0",
-        "didyoumean": "^1.2.2",
-        "dlv": "^1.1.3",
-        "fast-glob": "^3.3.2",
-        "glob-parent": "^6.0.2",
-        "is-glob": "^4.0.3",
-        "jiti": "^1.21.7",
-        "lilconfig": "^3.1.3",
-        "micromatch": "^4.0.8",
-        "normalize-path": "^3.0.0",
-        "object-hash": "^3.0.0",
-        "picocolors": "^1.1.1",
-        "postcss": "^8.4.47",
-        "postcss-import": "^15.1.0",
-        "postcss-js": "^4.0.1",
-        "postcss-load-config": "^4.0.2 || ^5.0 || ^6.0",
-        "postcss-nested": "^6.2.0",
-        "postcss-selector-parser": "^6.1.2",
-        "resolve": "^1.22.8",
-        "sucrase": "^3.35.0"
-      },
-      "bin": {
-        "tailwind": "lib/cli.js",
-        "tailwindcss": "lib/cli.js"
-      },
-      "engines": {
-        "node": ">=14.0.0"
-      }
-    },
-    "node_modules/tailwindcss/node_modules/glob-parent": {
-      "version": "6.0.2",
-      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-6.0.2.tgz",
-      "integrity": "sha512-XxwI8EOhVQgWp6iDL+3b0r86f4d6AX6zSU55HfB4ydCEuXLXc5FcYeOu+nnGftS4TEju/11rt4KJPTMgbfmv4A==",
-      "license": "ISC",
-      "dependencies": {
-        "is-glob": "^4.0.3"
-      },
-      "engines": {
-        "node": ">=10.13.0"
-      }
-    },
-    "node_modules/tailwindcss/node_modules/object-hash": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/object-hash/-/object-hash-3.0.0.tgz",
-      "integrity": "sha512-RSn9F68PjH9HqtltsSnqYC1XXoWe9Bju5+213R98cNGttag9q9yAOTzdbsqvIa7aNm5WffBZFpWYr2aWrklWAw==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 6"
-      }
-    },
-    "node_modules/tailwindcss/node_modules/postcss-js": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/postcss-js/-/postcss-js-4.1.0.tgz",
-      "integrity": "sha512-oIAOTqgIo7q2EOwbhb8UalYePMvYoIeRY2YKntdpFQXNosSu3vLrniGgmH9OKs/qAkfoj5oB3le/7mINW1LCfw==",
-      "funding": [
-        {
-          "type": "opencollective",
-          "url": "https://opencollective.com/postcss/"
-        },
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/ai"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "camelcase-css": "^2.0.1"
-      },
-      "engines": {
-        "node": "^12 || ^14 || >= 16"
-      },
-      "peerDependencies": {
-        "postcss": "^8.4.21"
-      }
-    },
-    "node_modules/tailwindcss/node_modules/postcss-load-config": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/postcss-load-config/-/postcss-load-config-6.0.1.tgz",
-      "integrity": "sha512-oPtTM4oerL+UXmx+93ytZVN82RrlY/wPUV8IeDxFrzIjXOLF1pN+EmKPLbubvKHT2HC20xXsCAH2Z+CKV6Oz/g==",
-      "funding": [
-        {
-          "type": "opencollective",
-          "url": "https://opencollective.com/postcss/"
-        },
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/ai"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "lilconfig": "^3.1.1"
-      },
-      "engines": {
-        "node": ">= 18"
-      },
-      "peerDependencies": {
-        "jiti": ">=1.21.0",
-        "postcss": ">=8.0.9",
-        "tsx": "^4.8.1",
-        "yaml": "^2.4.2"
-      },
-      "peerDependenciesMeta": {
-        "jiti": {
-          "optional": true
-        },
-        "postcss": {
-          "optional": true
-        },
-        "tsx": {
-          "optional": true
-        },
-        "yaml": {
-          "optional": true
-        }
-      }
-    },
-    "node_modules/tailwindcss/node_modules/postcss-nested": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/postcss-nested/-/postcss-nested-6.2.0.tgz",
-      "integrity": "sha512-HQbt28KulC5AJzG+cZtj9kvKB93CFCdLvog1WFLf1D+xmMvPGlBstkpTEZfK5+AN9hfJocyBFCNiqyS48bpgzQ==",
-      "funding": [
-        {
-          "type": "opencollective",
-          "url": "https://opencollective.com/postcss/"
-        },
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/ai"
-        }
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "postcss-selector-parser": "^6.1.1"
-      },
-      "engines": {
-        "node": ">=12.0"
-      },
-      "peerDependencies": {
-        "postcss": "^8.2.14"
-      }
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-4.2.2.tgz",
+      "integrity": "sha512-KWBIxs1Xb6NoLdMVqhbhgwZf2PGBpPEiwOqgI4pFIYbNTfBXiKYyWoTsXgBQ9WFg/OlhnvHaY+AEpW7wSmFo2Q==",
+      "license": "MIT"
     },
     "node_modules/tapable": {
       "version": "2.3.2",
@@ -18543,27 +18532,6 @@
       "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
       "license": "MIT"
     },
-    "node_modules/thenify": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/thenify/-/thenify-3.3.1.tgz",
-      "integrity": "sha512-RVZSIV5IG10Hk3enotrhvz0T9em6cyHBLkH/YAZuKqd8hRkKhSfCGIcP2KUY0EPxndzANBmNllzWPwak+bheSw==",
-      "license": "MIT",
-      "dependencies": {
-        "any-promise": "^1.0.0"
-      }
-    },
-    "node_modules/thenify-all": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/thenify-all/-/thenify-all-1.6.0.tgz",
-      "integrity": "sha512-RNxQH/qI8/t3thXJDwcstUO4zeqo64+Uy/+sNVRBx4Xn2OX+OZ9oP+iJnNFqplFra2ZUVeKCSa2oVWi3T4uVmA==",
-      "license": "MIT",
-      "dependencies": {
-        "thenify": ">= 3.1.0 < 4"
-      },
-      "engines": {
-        "node": ">=0.8"
-      }
-    },
     "node_modules/thingies": {
       "version": "2.6.0",
       "resolved": "https://registry.npmjs.org/thingies/-/thingies-2.6.0.tgz",
@@ -18598,22 +18566,6 @@
       "integrity": "sha512-lBN9zLN/oAf68o3zNXYrdCt1kP8WsiGW8Oo2ka41b2IM5JL/S1CTyX1rW0mb/zSuJun0ZUrDxx4sqvYS2FWzPA==",
       "license": "MIT"
     },
-    "node_modules/tinyglobby": {
-      "version": "0.2.16",
-      "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.16.tgz",
-      "integrity": "sha512-pn99VhoACYR8nFHhxqix+uvsbXineAasWm5ojXoN8xEwK5Kd3/TrhNn1wByuD52UxWRLy8pu+kRMniEi6Eq9Zg==",
-      "license": "MIT",
-      "dependencies": {
-        "fdir": "^6.5.0",
-        "picomatch": "^4.0.4"
-      },
-      "engines": {
-        "node": ">=12.0.0"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/SuperchupuDev"
-      }
-    },
     "node_modules/tinypool": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/tinypool/-/tinypool-1.1.1.tgz",
@@ -18689,12 +18641,6 @@
         "url": "https://github.com/sponsors/wooorm"
       }
     },
-    "node_modules/ts-interface-checker": {
-      "version": "0.1.13",
-      "resolved": "https://registry.npmjs.org/ts-interface-checker/-/ts-interface-checker-0.1.13.tgz",
-      "integrity": "sha512-Y/arvbn+rrz3JCKl9C4kVNfTfSm2/mEp5FSz5EsZSANGPSlQrpRI5M4PKF+mJnE52jOO90PnPSc3Ur3bTQw0gA==",
-      "license": "Apache-2.0"
-    },
     "node_modules/tslib": {
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
diff --git a/package.json b/package.json
index 96ae0ce..b0add7f 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,8 @@
     "prism-react-renderer": "^2.3.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "tailwindcss": "^3.4.19"
+    "@tailwindcss/postcss": "^4.2.2",
+    "tailwindcss": "^4.2.2"
   },
   "devDependencies": {
     "@docusaurus/module-type-aliases": "3.10.0",
diff --git a/src/css/custom.css b/src/css/custom.css
index 52a3df2..c70f47d 100644
--- a/src/css/custom.css
+++ b/src/css/custom.css
@@ -1,6 +1,18 @@
-@tailwind base;
-@tailwind components;
-@tailwind utilities;
+/* Tailwind v4 — theme + utilities only.
+   Preflight excluded: @layer base (preflight) appears after @layer docusaurus.infima
+   in the final bundle, meaning it would override Infima and break Docusaurus layout. */
+@import "tailwindcss/theme";
+@import "tailwindcss/utilities";
+
+/* Dark mode variant bound to Docusaurus data-theme attribute (overrides built-in @media prefers-color-scheme) */
+@custom-variant dark (&:where([data-theme="dark"], [data-theme="dark"] *));
+
+/* Theme extensions (migrated from tailwind.config.js) */
+@theme {
+  --font-family-sans: 'Inter', sans-serif;
+  --font-family-mono: 'JetBrains Mono', monospace;
+  --color-zinc-950: #09090b;
+}
 
 /**
  * Zenzic Bastion Global Design System
@@ -116,9 +128,21 @@ body {
 /* ── Navbar ── */
 .navbar {
   background-color: var(--ifm-navbar-background-color);
-  backdrop-filter: blur(8px);
   box-shadow: none;
   padding: 0;
+  position: relative;
+}
+
+/* backdrop-filter on ::before — avoids creating a containing block for
+   position:fixed descendants (e.g. .navbar-sidebar), which would clip the
+   mobile sidebar to the navbar height instead of the full viewport. */
+.navbar::before {
+  content: '';
+  position: absolute;
+  inset: 0;
+  backdrop-filter: blur(8px);
+  z-index: -1;
+  pointer-events: none;
 }
 
 .navbar .navbar__inner {
diff --git a/tailwind.config.js b/tailwind.config.js
deleted file mode 100644
index 54a8250..0000000
--- a/tailwind.config.js
+++ /dev/null
@@ -1,27 +0,0 @@
-/** @type {import('tailwindcss').Config} */
-module.exports = {
-  darkMode: ['class', '[data-theme="dark"]'],
-  corePlugins: {
-    // Prevent Tailwind's CSS reset from overriding Docusaurus/Infima base styles
-    preflight: false,
-  },
-  content: [
-    "./src/**/*.{js,jsx,ts,tsx,md,mdx}",
-    "./docs/**/*.{md,mdx}",
-    "./i18n/**/*.{md,mdx,json}",
-  ],
-  theme: {
-    extend: {
-      fontFamily: {
-        sans: ['Inter', 'sans-serif'],
-        mono: ['JetBrains Mono', 'monospace'],
-      },
-      colors: {
-        zinc: {
-          950: '#09090b',
-        }
-      }
-    },
-  },
-  plugins: [],
-}