From 0d4fa8e457d2602c3b381216720d5461e1406b96 Mon Sep 17 00:00:00 2001
From: Tobias <tobias_git@tlhub.de>
Date: Thu, 13 Aug 2026 20:03:14 +0200
Subject: [PATCH] Implemented basic app with Mantine SegmentedControl

---
 .idea/workspace.xml         |  71 +++--
 frontend/package-lock.json  | 508 +++++++++++++++++++++++++++++++++---
 frontend/package.json       |   7 +
 frontend/postcss.config.cjs |  14 +
 frontend/src/App.css        | 184 -------------
 frontend/src/App.tsx        | 130 ++-------
 frontend/src/main.tsx       |   9 +-
 7 files changed, 566 insertions(+), 357 deletions(-)
 create mode 100644 frontend/postcss.config.cjs
 delete mode 100644 frontend/src/App.css

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index c2edaab..44985e9 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -5,12 +5,13 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="58b952d2-2253-4e80-8b30-0eef029dc0b0" name="Changes" comment="">
-      <change beforePath="$PROJECT_DIR$/../zkpa4fs_qt/.gitignore" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../zkpa4fs_qt/CMakeLists.txt" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../zkpa4fs_qt/main.cpp" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../zkpa4fs_qt/mainwindow.cpp" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../zkpa4fs_qt/mainwindow.h" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/../zkpa4fs_qt/mainwindow.ui" beforeDir="false" />
+      <change afterPath="$PROJECT_DIR$/frontend/postcss.config.cjs" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/frontend/package-lock.json" beforeDir="false" afterPath="$PROJECT_DIR$/frontend/package-lock.json" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/frontend/package.json" beforeDir="false" afterPath="$PROJECT_DIR$/frontend/package.json" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/frontend/src/App.css" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/frontend/src/App.tsx" beforeDir="false" afterPath="$PROJECT_DIR$/frontend/src/App.tsx" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/frontend/src/main.tsx" beforeDir="false" afterPath="$PROJECT_DIR$/frontend/src/main.tsx" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -96,30 +97,52 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent">{
-  &quot;keyToString&quot;: {
-    &quot;ModuleVcsDetector.initialDetectionPerformed&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.MCP Project settings loaded&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.typescript.service.memoryLimit.init&quot;: &quot;true&quot;,
-    &quot;codeWithMe.voiceChat.enabledByDefault&quot;: &quot;false&quot;,
-    &quot;git-widget-placeholder&quot;: &quot;master&quot;,
-    &quot;node.js.detected.package.eslint&quot;: &quot;true&quot;,
-    &quot;node.js.detected.package.jshint&quot;: &quot;true&quot;,
-    &quot;node.js.detected.package.tslint&quot;: &quot;true&quot;,
-    &quot;node.js.selected.package.eslint&quot;: &quot;(autodetect)&quot;,
-    &quot;node.js.selected.package.jshint&quot;: &quot;&quot;,
-    &quot;node.js.selected.package.tslint&quot;: &quot;(autodetect)&quot;,
-    &quot;nodejs_package_manager_path&quot;: &quot;npm&quot;,
-    &quot;ts.external.directory.path&quot;: &quot;C:\\Users\\t.landgraf\\AppData\\Local\\Programs\\WebStorm\\plugins\\javascript-plugin\\jsLanguageServicesImpl\\external&quot;
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "ModuleVcsDetector.initialDetectionPerformed": "true",
+    "RunOnceActivity.MCP Project settings loaded": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "RunOnceActivity.git.unshallow": "true",
+    "RunOnceActivity.typescript.service.memoryLimit.init": "true",
+    "codeWithMe.voiceChat.enabledByDefault": "false",
+    "git-widget-placeholder": "main",
+    "javascript.preferred.runtime.type.id": "node",
+    "last_opened_file_path": "/home/tobias/Projects/Work-Tracker",
+    "node.js.detected.package.eslint": "true",
+    "node.js.detected.package.jshint": "true",
+    "node.js.detected.package.tslint": "true",
+    "node.js.selected.package.eslint": "(autodetect)",
+    "node.js.selected.package.jshint": "",
+    "node.js.selected.package.tslint": "(autodetect)",
+    "nodejs_package_manager_path": "npm",
+    "npm.dev.executor": "Run",
+    "settings.editor.selected.configurable": "preferences.keymap",
+    "ts.external.directory.path": "/home/tobias/.local/share/JetBrains/Toolbox/apps/webstorm/plugins/javascript-plugin/jsLanguageServicesImpl/external"
   }
-}</component>
+}]]></component>
   <component name="RecentsManager">
     <key name="MoveFile.RECENT_KEYS">
       <recent name="C:\Users\t.landgraf\GitProjects\work_tracker\frontend" />
       <recent name="C:\Users\t.landgraf\GitProjects\work_tracker" />
     </key>
   </component>
+  <component name="RunManager">
+    <configuration name="dev" type="js.build_tools.npm" temporary="true" nameIsGenerated="true">
+      <package-json value="$PROJECT_DIR$/frontend/package.json" />
+      <command value="run" />
+      <scripts>
+        <script value="dev" />
+      </scripts>
+      <node-interpreter value="project" />
+      <envs />
+      <method v="2" />
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="npm.dev" />
+      </list>
+    </recent_temporary>
+  </component>
   <component name="SharedIndexes">
     <attachedChunks>
       <set>
@@ -134,6 +157,8 @@
       <option name="number" value="Default" />
       <option name="presentableId" value="Default" />
       <updated>1786104887278</updated>
+      <workItem from="1786130663426" duration="632000" />
+      <workItem from="1786642848722" duration="1272000" />
     </task>
     <servers />
   </component>
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index f77101b..2d73f24 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -7,7 +7,12 @@
     "": {
       "name": "work_tracker_frontend",
       "version": "0.0.0",
+      "license": "ISC",
       "dependencies": {
+        "@mantine/core": "^9.5.1",
+        "@mantine/dates": "^9.5.1",
+        "@mantine/hooks": "^9.5.1",
+        "dayjs": "^1.11.21",
         "react": "^19.2.8",
         "react-dom": "^19.2.8"
       },
@@ -25,6 +30,9 @@
         "eslint-plugin-react-hooks": "^7.1.1",
         "eslint-plugin-react-refresh": "^0.5.3",
         "globals": "^17.7.0",
+        "postcss": "^8.5.26",
+        "postcss-preset-mantine": "^1.18.0",
+        "postcss-simple-vars": "^7.0.1",
         "typescript": "~6.0.2",
         "typescript-eslint": "^8.65.0",
         "vite": "^8.2.0"
@@ -398,6 +406,59 @@
         "node": "^20.19.0 || ^22.13.0 || >=24"
       }
     },
+    "node_modules/@floating-ui/core": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.8.0.tgz",
+      "integrity": "sha512-0CIZ5itps/8x7BG8dEIhs53BvCUH2PCoogtakwRTut+Arm58sJooJ0AuZhLw2HJYIR5cMLNPBSS728sPho2khQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@floating-ui/utils": "^0.2.12"
+      }
+    },
+    "node_modules/@floating-ui/dom": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/@floating-ui/dom/-/dom-1.8.0.tgz",
+      "integrity": "sha512-yXSrzeHZBTZadLOlfyhCkJHNeLJnHRnRInwdZ40L7ZiaAtrBwoYlsDrX3v5zB1Utk7CLfzcOVnVVWoXEky7Ceg==",
+      "license": "MIT",
+      "dependencies": {
+        "@floating-ui/core": "^1.8.0",
+        "@floating-ui/utils": "^0.2.12"
+      }
+    },
+    "node_modules/@floating-ui/react": {
+      "version": "0.27.20",
+      "resolved": "https://registry.npmjs.org/@floating-ui/react/-/react-0.27.20.tgz",
+      "integrity": "sha512-CMqMy7OaXl9W0eq1Uy7L7i2Y/anPvHmFmESd2CEw0t5YvZhcVCeo4MBevAmswRllX7Y2dEidA4ozGPunLSTQpw==",
+      "license": "MIT",
+      "dependencies": {
+        "@floating-ui/react-dom": "^2.1.9",
+        "@floating-ui/utils": "^0.2.12",
+        "tabbable": "^6.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=17.0.0",
+        "react-dom": ">=17.0.0"
+      }
+    },
+    "node_modules/@floating-ui/react-dom": {
+      "version": "2.1.9",
+      "resolved": "https://registry.npmjs.org/@floating-ui/react-dom/-/react-dom-2.1.9.tgz",
+      "integrity": "sha512-JDjEFGCpImxDCA7JJKviA0M9+RtmJdj0m/NVU5IMgBK+AmZouAQQ7/+2GLH0GXXY0YMw9oXPB8hKdbPYg5QLYg==",
+      "license": "MIT",
+      "dependencies": {
+        "@floating-ui/dom": "^1.8.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@floating-ui/utils": {
+      "version": "0.2.12",
+      "resolved": "https://registry.npmjs.org/@floating-ui/utils/-/utils-0.2.12.tgz",
+      "integrity": "sha512-HpCo8tmWzLVad5s2d19EhAz5zqrrQ6s69qd6moPMQvkOuSwDT1YgRfWSVuc4ennqrgv3OHppiOGMQ7oC13yIww==",
+      "license": "MIT"
+    },
     "node_modules/@humanfs/core": {
       "version": "0.19.2",
       "resolved": "https://registry.npmjs.org/@humanfs/core/-/core-0.19.2.tgz",
@@ -514,6 +575,49 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@mantine/core": {
+      "version": "9.5.1",
+      "resolved": "https://registry.npmjs.org/@mantine/core/-/core-9.5.1.tgz",
+      "integrity": "sha512-3olDOYJBfW4kR37Aqdy/+FnYG7iNb5SPzOGeCp9dDxnt65K94sEqETDnXGJptOMO2xLm4KLJ/eBt3IIhJA7Z4Q==",
+      "license": "MIT",
+      "dependencies": {
+        "@floating-ui/react": "^0.27.19",
+        "clsx": "^2.1.1",
+        "react-number-format": "^5.4.5",
+        "react-remove-scroll": "^2.7.2",
+        "type-fest": "^5.8.0"
+      },
+      "peerDependencies": {
+        "@mantine/hooks": "9.5.1",
+        "react": "^19.2.0",
+        "react-dom": "^19.2.0"
+      }
+    },
+    "node_modules/@mantine/dates": {
+      "version": "9.5.1",
+      "resolved": "https://registry.npmjs.org/@mantine/dates/-/dates-9.5.1.tgz",
+      "integrity": "sha512-1FTIgF8L6AKEb+Ql53zVyCCp4JxvQp/AUDts5T/JEI7U0CZGpzg+FHGtmNShLR4ONuOfzOV1gkgU8INbxVJjag==",
+      "license": "MIT",
+      "dependencies": {
+        "clsx": "^2.1.1"
+      },
+      "peerDependencies": {
+        "@mantine/core": "9.5.1",
+        "@mantine/hooks": "9.5.1",
+        "dayjs": ">=1.0.0",
+        "react": "^19.2.0",
+        "react-dom": "^19.2.0"
+      }
+    },
+    "node_modules/@mantine/hooks": {
+      "version": "9.5.1",
+      "resolved": "https://registry.npmjs.org/@mantine/hooks/-/hooks-9.5.1.tgz",
+      "integrity": "sha512-2sK9OdWvrzKBOuWxLfQA5qcAJzxpzqNlKumaP7Uq0i7LDBQeY/sYgNiBWLwtW+iZw6fFXwPf0nI7q5VVpvqnNQ==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^19.2.0"
+      }
+    },
     "node_modules/@oxc-project/types": {
       "version": "0.143.0",
       "resolved": "https://registry.npmjs.org/@oxc-project/types/-/types-0.143.0.tgz",
@@ -617,9 +721,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -637,9 +738,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -657,9 +755,6 @@
         "ppc64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -677,9 +772,6 @@
         "s390x"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -697,9 +789,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -717,9 +806,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -898,7 +984,7 @@
       "version": "19.2.18",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.18.tgz",
       "integrity": "sha512-AnzbBERsrLKtk2XSfTbYRLjQPdy116Sty4q+T+Bp3IC4l6jNBvreVPAHmpq9qhXQM7CXZPjLVmGMw9sy+hxQ3w==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "dependencies": {
         "csstype": "^3.2.2"
@@ -1303,6 +1389,16 @@
         "node": "^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7"
       }
     },
+    "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==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/caniuse-lite": {
       "version": "1.0.30001809",
       "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001809.tgz",
@@ -1324,6 +1420,15 @@
       ],
       "license": "CC-BY-4.0"
     },
+    "node_modules/clsx": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/clsx/-/clsx-2.1.1.tgz",
+      "integrity": "sha512-eYm0QWBtUrBWZWG0d386OGAw16Z995PiOVo2B7bjWSbHedGl5e0ZWaq65kOGgUSNesEIDkB9ISbTg/JK9dhCZA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/convert-source-map": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-2.0.0.tgz",
@@ -1346,11 +1451,30 @@
         "node": ">= 8"
       }
     },
+    "node_modules/cssesc": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/cssesc/-/cssesc-3.0.0.tgz",
+      "integrity": "sha512-/Tb/JcjK111nNScGob5MNtsntNM1aCNUDipB/TkwZFhyDrrE47SOx/18wF2bbjgc3ZzCSKW1T5nt5EbFoAz/Vg==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "cssesc": "bin/cssesc"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/csstype": {
       "version": "3.2.3",
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
       "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==",
-      "dev": true,
+      "devOptional": true,
+      "license": "MIT"
+    },
+    "node_modules/dayjs": {
+      "version": "1.11.21",
+      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.21.tgz",
+      "integrity": "sha512-98IT+HOahAisibz/yjKbzuOBwYcjJ7BCLPzARyHiyEBmRz4fatF+KPJszEHXsGYjUG234aH/cOjW1wwTbKUZlA==",
       "license": "MIT"
     },
     "node_modules/debug": {
@@ -1388,6 +1512,12 @@
         "node": ">=8"
       }
     },
+    "node_modules/detect-node-es": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/detect-node-es/-/detect-node-es-1.1.0.tgz",
+      "integrity": "sha512-ypdmJU/TbBby2Dxibuv7ZLW3Bs1QEmM7nHjEANfohJLvE0XVujisn1qPJcZxg+qDucsr+bP6fLD1rPS3AhJ7EQ==",
+      "license": "MIT"
+    },
     "node_modules/electron-to-chromium": {
       "version": "1.5.402",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.402.tgz",
@@ -1718,6 +1848,15 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/get-nonce": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/get-nonce/-/get-nonce-1.0.1.tgz",
+      "integrity": "sha512-FJhYRoDaiatfEkUK8HKlicmu/3SGFD51q3itKDGoSTysQJBnfOcxU5GxnhE1E6soB76MbT0MBtnKJuXyAx+96Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/glob-parent": {
       "version": "6.0.2",
       "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-6.0.2.tgz",
@@ -2032,9 +2171,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -2056,9 +2192,6 @@
         "arm64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -2080,9 +2213,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "glibc"
-      ],
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -2104,9 +2234,6 @@
         "x64"
       ],
       "dev": true,
-      "libc": [
-        "musl"
-      ],
       "license": "MPL-2.0",
       "optional": true,
       "os": [
@@ -2366,6 +2493,132 @@
         "node": "^10 || ^12 || >=14"
       }
     },
+    "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==",
+      "dev": true,
+      "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/postcss-mixins": {
+      "version": "12.1.2",
+      "resolved": "https://registry.npmjs.org/postcss-mixins/-/postcss-mixins-12.1.2.tgz",
+      "integrity": "sha512-90pSxmZVfbX9e5xCv7tI5RV1mnjdf16y89CJKbf/hD7GyOz1FCxcYMl8ZYA8Hc56dbApTKKmU9HfvgfWdCxlwg==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/postcss/"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "postcss-js": "^4.0.1",
+        "postcss-simple-vars": "^7.0.1",
+        "sugarss": "^5.0.0",
+        "tinyglobby": "^0.2.14"
+      },
+      "engines": {
+        "node": "^20.0 || ^22.0 || >=24.0"
+      },
+      "peerDependencies": {
+        "postcss": "^8.2.14"
+      }
+    },
+    "node_modules/postcss-nested": {
+      "version": "7.0.2",
+      "resolved": "https://registry.npmjs.org/postcss-nested/-/postcss-nested-7.0.2.tgz",
+      "integrity": "sha512-5osppouFc0VR9/VYzYxO03VaDa3e8F23Kfd6/9qcZTUI8P58GIYlArOET2Wq0ywSl2o2PjELhYOFI4W7l5QHKw==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/postcss/"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "postcss-selector-parser": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=18.0"
+      },
+      "peerDependencies": {
+        "postcss": "^8.2.14"
+      }
+    },
+    "node_modules/postcss-preset-mantine": {
+      "version": "1.18.0",
+      "resolved": "https://registry.npmjs.org/postcss-preset-mantine/-/postcss-preset-mantine-1.18.0.tgz",
+      "integrity": "sha512-sP6/s1oC7cOtBdl4mw/IRKmKvYTuzpRrH/vT6v9enMU/EQEQ31eQnHcWtFghOXLH87AAthjL/Q75rLmin1oZoA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "postcss-mixins": "^12.0.0",
+        "postcss-nested": "^7.0.2"
+      },
+      "peerDependencies": {
+        "postcss": ">=8.0.0"
+      }
+    },
+    "node_modules/postcss-selector-parser": {
+      "version": "7.1.5",
+      "resolved": "https://registry.npmjs.org/postcss-selector-parser/-/postcss-selector-parser-7.1.5.tgz",
+      "integrity": "sha512-KvvtD7SrlBP7dlgkBghEE3r84CABm5SmV2aNcG4oCA+qDnJ/tvKonFVvwWAyyWUEwxuNawdfEAZKP9zM3oZ2Uw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cssesc": "^3.0.0",
+        "util-deprecate": "^1.0.2"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/postcss-simple-vars": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/postcss-simple-vars/-/postcss-simple-vars-7.0.1.tgz",
+      "integrity": "sha512-5GLLXaS8qmzHMOjVxqkk1TZPf1jMqesiI7qLhnlyERalG0sMbHIbJqrcnrpmZdKCLglHnRHoEBB61RtGTsj++A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/postcss/"
+      },
+      "peerDependencies": {
+        "postcss": "^8.2.1"
+      }
+    },
     "node_modules/prelude-ls": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.2.1.tgz",
@@ -2407,6 +2660,85 @@
         "react": "^19.2.8"
       }
     },
+    "node_modules/react-number-format": {
+      "version": "5.4.5",
+      "resolved": "https://registry.npmjs.org/react-number-format/-/react-number-format-5.4.5.tgz",
+      "integrity": "sha512-y8O2yHHj3w0aE9XO8d2BCcUOOdQTRSVq+WIuMlLVucAm5XNjJAy+BoOJiuQMldVYVOKTMyvVNfnbl2Oqp+YxGw==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^0.14 || ^15.0.0 || ^16.0.0 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+        "react-dom": "^0.14 || ^15.0.0 || ^16.0.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
+    "node_modules/react-remove-scroll": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/react-remove-scroll/-/react-remove-scroll-2.7.2.tgz",
+      "integrity": "sha512-Iqb9NjCCTt6Hf+vOdNIZGdTiH1QSqr27H/Ek9sv/a97gfueI/5h1s3yRi1nngzMUaOOToin5dI1dXKdXiF+u0Q==",
+      "license": "MIT",
+      "dependencies": {
+        "react-remove-scroll-bar": "^2.3.7",
+        "react-style-singleton": "^2.2.3",
+        "tslib": "^2.1.0",
+        "use-callback-ref": "^1.3.3",
+        "use-sidecar": "^1.1.3"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-remove-scroll-bar": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/react-remove-scroll-bar/-/react-remove-scroll-bar-2.3.8.tgz",
+      "integrity": "sha512-9r+yi9+mgU33AKcj6IbT9oRCO78WriSj6t/cF8DWBZJ9aOGPOTEDvdUDz1FwKim7QXWwmHqtdHnRJfhAxEG46Q==",
+      "license": "MIT",
+      "dependencies": {
+        "react-style-singleton": "^2.2.2",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-style-singleton": {
+      "version": "2.2.3",
+      "resolved": "https://registry.npmjs.org/react-style-singleton/-/react-style-singleton-2.2.3.tgz",
+      "integrity": "sha512-b6jSvxvVnyptAiLjbkWLE/lOnR4lfTtDAl+eUC7RZy+QQWc6wRzIV2CE6xBuMmDxc2qIihtDCZD5NPOFl7fRBQ==",
+      "license": "MIT",
+      "dependencies": {
+        "get-nonce": "^1.0.0",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/rolldown": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/rolldown/-/rolldown-1.2.3.tgz",
@@ -2489,6 +2821,47 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/sugarss": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/sugarss/-/sugarss-5.0.1.tgz",
+      "integrity": "sha512-ctS5RYCBVvPoZAnzIaX5QSShK8ZiZxD5HUqSxlusvEMC+QZQIPCPOIJg6aceFX+K2rf4+SH89eu++h1Zmsr2nw==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/postcss/"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.0"
+      },
+      "peerDependencies": {
+        "postcss": "^8.3.3"
+      }
+    },
+    "node_modules/tabbable": {
+      "version": "6.5.0",
+      "resolved": "https://registry.npmjs.org/tabbable/-/tabbable-6.5.0.tgz",
+      "integrity": "sha512-wieBHXygIm7OyQOu5hQlkk62/WyCFYGlWg7L6/ZCUZwx0o398Zkn4pVmMyfYhfMG8kGrj/Krt8eIk6UKC6VzwA==",
+      "license": "MIT"
+    },
+    "node_modules/tagged-tag": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/tagged-tag/-/tagged-tag-1.0.0.tgz",
+      "integrity": "sha512-yEFYrVhod+hdNyx7g5Bnkkb0G6si8HJurOoOEgC8B/O0uXLHlaey/65KRv6cuWBNhBgHKAROVpc7QyYqE5gFng==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/tinyglobby": {
       "version": "0.2.17",
       "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.17.tgz",
@@ -2519,6 +2892,12 @@
         "typescript": ">=4.8.4"
       }
     },
+    "node_modules/tslib": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
+      "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
+      "license": "0BSD"
+    },
     "node_modules/type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -2532,6 +2911,21 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/type-fest": {
+      "version": "5.8.0",
+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-5.8.0.tgz",
+      "integrity": "sha512-YGYEVz3Fm5iy/AybuA0oyNFq7H4CgQNfRp/qfe8nurE1kuCeNm3/vfm9X4Mtl+qLyaKJUh5xrFZwogr41SMjYA==",
+      "license": "(MIT OR CC0-1.0)",
+      "dependencies": {
+        "tagged-tag": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/typescript": {
       "version": "6.0.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
@@ -2618,6 +3012,56 @@
         "punycode": "^2.1.0"
       }
     },
+    "node_modules/use-callback-ref": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/use-callback-ref/-/use-callback-ref-1.3.3.tgz",
+      "integrity": "sha512-jQL3lRnocaFtu3V00JToYz/4QkNWswxijDaCVNZRiRTO3HQDLsdu1ZtmIUvV4yPp+rvWm5j0y0TG/S61cuijTg==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/use-sidecar": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/use-sidecar/-/use-sidecar-1.1.3.tgz",
+      "integrity": "sha512-Fedw0aZvkhynoPYlA5WXrMCAMm+nSWdZt6lzJQ7Ok8S6Q+VsHmHpRWndVRJ8Be0ZbkfPc5LRYH+5XrzXcEeLRQ==",
+      "license": "MIT",
+      "dependencies": {
+        "detect-node-es": "^1.1.0",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/vite": {
       "version": "8.2.1",
       "resolved": "https://registry.npmjs.org/vite/-/vite-8.2.1.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index d5827d5..e6c5b49 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -10,6 +10,10 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@mantine/core": "^9.5.1",
+    "@mantine/dates": "^9.5.1",
+    "@mantine/hooks": "^9.5.1",
+    "dayjs": "^1.11.21",
     "react": "^19.2.8",
     "react-dom": "^19.2.8"
   },
@@ -27,6 +31,9 @@
     "eslint-plugin-react-hooks": "^7.1.1",
     "eslint-plugin-react-refresh": "^0.5.3",
     "globals": "^17.7.0",
+    "postcss": "^8.5.26",
+    "postcss-preset-mantine": "^1.18.0",
+    "postcss-simple-vars": "^7.0.1",
     "typescript": "~6.0.2",
     "typescript-eslint": "^8.65.0",
     "vite": "^8.2.0"
diff --git a/frontend/postcss.config.cjs b/frontend/postcss.config.cjs
new file mode 100644
index 0000000..13ed8b0
--- /dev/null
+++ b/frontend/postcss.config.cjs
@@ -0,0 +1,14 @@
+module.exports = {
+    plugins: {
+        'postcss-preset-mantine': {},
+        'postcss-simple-vars': {
+            variables: {
+                'mantine-breakpoint-xs': '36em',
+                'mantine-breakpoint-sm': '48em',
+                'mantine-breakpoint-md': '62em',
+                'mantine-breakpoint-lg': '75em',
+                'mantine-breakpoint-xl': '88em',
+            },
+        },
+    },
+};
\ No newline at end of file
diff --git a/frontend/src/App.css b/frontend/src/App.css
deleted file mode 100644
index f90339d..0000000
--- a/frontend/src/App.css
+++ /dev/null
@@ -1,184 +0,0 @@
-.counter {
-  font-size: 16px;
-  padding: 5px 10px;
-  border-radius: 5px;
-  color: var(--accent);
-  background: var(--accent-bg);
-  border: 2px solid transparent;
-  transition: border-color 0.3s;
-  margin-bottom: 24px;
-
-  &:hover {
-    border-color: var(--accent-border);
-  }
-  &:focus-visible {
-    outline: 2px solid var(--accent);
-    outline-offset: 2px;
-  }
-}
-
-.hero {
-  position: relative;
-
-  .base,
-  .framework,
-  .vite {
-    inset-inline: 0;
-    margin: 0 auto;
-  }
-
-  .base {
-    width: 170px;
-    position: relative;
-    z-index: 0;
-  }
-
-  .framework,
-  .vite {
-    position: absolute;
-  }
-
-  .framework {
-    z-index: 1;
-    top: 34px;
-    height: 28px;
-    transform: perspective(2000px) rotateZ(300deg) rotateX(44deg) rotateY(39deg)
-      scale(1.4);
-  }
-
-  .vite {
-    z-index: 0;
-    top: 107px;
-    height: 26px;
-    width: auto;
-    transform: perspective(2000px) rotateZ(300deg) rotateX(40deg) rotateY(39deg)
-      scale(0.8);
-  }
-}
-
-#center {
-  display: flex;
-  flex-direction: column;
-  gap: 25px;
-  place-content: center;
-  place-items: center;
-  flex-grow: 1;
-
-  @media (max-width: 1024px) {
-    padding: 32px 20px 24px;
-    gap: 18px;
-  }
-}
-
-#next-steps {
-  display: flex;
-  border-top: 1px solid var(--border);
-  text-align: left;
-
-  & > div {
-    flex: 1 1 0;
-    padding: 32px;
-    @media (max-width: 1024px) {
-      padding: 24px 20px;
-    }
-  }
-
-  .icon {
-    margin-bottom: 16px;
-    width: 22px;
-    height: 22px;
-  }
-
-  @media (max-width: 1024px) {
-    flex-direction: column;
-    text-align: center;
-  }
-}
-
-#docs {
-  border-right: 1px solid var(--border);
-
-  @media (max-width: 1024px) {
-    border-right: none;
-    border-bottom: 1px solid var(--border);
-  }
-}
-
-#next-steps ul {
-  list-style: none;
-  padding: 0;
-  display: flex;
-  gap: 8px;
-  margin: 32px 0 0;
-
-  .logo {
-    height: 18px;
-  }
-
-  a {
-    color: var(--text-h);
-    font-size: 16px;
-    border-radius: 6px;
-    background: var(--social-bg);
-    display: flex;
-    padding: 6px 12px;
-    align-items: center;
-    gap: 8px;
-    text-decoration: none;
-    transition: box-shadow 0.3s;
-
-    &:hover {
-      box-shadow: var(--shadow);
-    }
-    .button-icon {
-      height: 18px;
-      width: 18px;
-    }
-  }
-
-  @media (max-width: 1024px) {
-    margin-top: 20px;
-    flex-wrap: wrap;
-    justify-content: center;
-
-    li {
-      flex: 1 1 calc(50% - 8px);
-    }
-
-    a {
-      width: 100%;
-      justify-content: center;
-      box-sizing: border-box;
-    }
-  }
-}
-
-#spacer {
-  height: 88px;
-  border-top: 1px solid var(--border);
-  @media (max-width: 1024px) {
-    height: 48px;
-  }
-}
-
-.ticks {
-  position: relative;
-  width: 100%;
-
-  &::before,
-  &::after {
-    content: '';
-    position: absolute;
-    top: -4.5px;
-    border: 5px solid transparent;
-  }
-
-  &::before {
-    left: 0;
-    border-left-color: var(--border);
-  }
-  &::after {
-    right: 0;
-    border-right-color: var(--border);
-  }
-}
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index a66b5ef..fb10be4 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -1,122 +1,22 @@
-import { useState } from 'react'
-import reactLogo from './assets/react.svg'
-import viteLogo from './assets/vite.svg'
-import heroImg from './assets/hero.png'
-import './App.css'
+import { SegmentedControl } from '@mantine/core';
+import * as React from 'react';
+
+type Workday = 'Monday' | 'Tuesday' | 'Wednesday' | 'Thursday' | 'Friday';
 
 function App() {
-  const [count, setCount] = useState(0)
+    const [selectedDay, setSelectedDay] = React.useState<Workday>('Monday');
 
-  return (
-    <>
-      <section id="center">
-        <div className="hero">
-          <img src={heroImg} className="base" width="170" height="179" alt="" />
-          <img src={reactLogo} className="framework" alt="React logo" />
-          <img src={viteLogo} className="vite" alt="Vite logo" />
-        </div>
-        <div>
-          <h1>Get started</h1>
-          <p>
-            Edit <code>src/App.tsx</code> and save to test <code>HMR</code>
-          </p>
-        </div>
-        <button
-          type="button"
-          className="counter"
-          onClick={() => setCount((count) => count + 1)}
-        >
-          Count is {count}
-        </button>
-      </section>
+    React.useEffect(() => {
+        console.log("Updated day");
+        console.log(selectedDay);
+    }, [selectedDay]);
 
-      <div className="ticks"></div>
-
-      <section id="next-steps">
-        <div id="docs">
-          <svg className="icon" role="presentation" aria-hidden="true">
-            <use href="/icons.svg#documentation-icon"></use>
-          </svg>
-          <h2>Documentation</h2>
-          <p>Your questions, answered</p>
-          <ul>
-            <li>
-              <a href="https://vite.dev/" target="_blank">
-                <img className="logo" src={viteLogo} alt="" />
-                Explore Vite
-              </a>
-            </li>
-            <li>
-              <a href="https://react.dev/" target="_blank">
-                <img className="button-icon" src={reactLogo} alt="" />
-                Learn more
-              </a>
-            </li>
-          </ul>
-        </div>
-        <div id="social">
-          <svg className="icon" role="presentation" aria-hidden="true">
-            <use href="/icons.svg#social-icon"></use>
-          </svg>
-          <h2>Connect with us</h2>
-          <p>Join the Vite community</p>
-          <ul>
-            <li>
-              <a href="https://github.com/vitejs/vite" target="_blank">
-                <svg
-                  className="button-icon"
-                  role="presentation"
-                  aria-hidden="true"
-                >
-                  <use href="/icons.svg#github-icon"></use>
-                </svg>
-                GitHub
-              </a>
-            </li>
-            <li>
-              <a href="https://chat.vite.dev/" target="_blank">
-                <svg
-                  className="button-icon"
-                  role="presentation"
-                  aria-hidden="true"
-                >
-                  <use href="/icons.svg#discord-icon"></use>
-                </svg>
-                Discord
-              </a>
-            </li>
-            <li>
-              <a href="https://x.com/vite_js" target="_blank">
-                <svg
-                  className="button-icon"
-                  role="presentation"
-                  aria-hidden="true"
-                >
-                  <use href="/icons.svg#x-icon"></use>
-                </svg>
-                X.com
-              </a>
-            </li>
-            <li>
-              <a href="https://bsky.app/profile/vite.dev" target="_blank">
-                <svg
-                  className="button-icon"
-                  role="presentation"
-                  aria-hidden="true"
-                >
-                  <use href="/icons.svg#bluesky-icon"></use>
-                </svg>
-                Bluesky
-              </a>
-            </li>
-          </ul>
-        </div>
-      </section>
-
-      <div className="ticks"></div>
-      <section id="spacer"></section>
-    </>
-  )
+    return (
+      <SegmentedControl
+        data={['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']}
+        onChange={(value) => setSelectedDay(value as Workday)}
+      />
+    )
 }
 
 export default App
diff --git a/frontend/src/main.tsx b/frontend/src/main.tsx
index bef5202..b8aa7f1 100644
--- a/frontend/src/main.tsx
+++ b/frontend/src/main.tsx
@@ -1,10 +1,13 @@
+import '@mantine/core/styles.css';
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
 import './index.css'
 import App from './App.tsx'
+import { MantineProvider } from '@mantine/core';
+
 
 createRoot(document.getElementById('root')!).render(
-  <StrictMode>
-    <App />
-  </StrictMode>,
+    <MantineProvider defaultColorScheme={"dark"}>
+        <App />
+    </MantineProvider>
 )