refactor: migrate from hardcoded hex colors to Tailwind CSS color tokens

Replace all hardcoded hex color values with semantic Tailwind design tokens:
- `#bb5b3e` → `accent`
- `#a34a31` → `accent-content` / `primary-dark`
- `#4a3f3b`, `#89726c` → `zinc-800`, `zinc-500`
- `#e5ded7`, `#faf6f3` → `zinc-300`, `zinc-50`
- `#8

skills-lock.json

@@ -1,10 +1,95 @@
 {
   "version": 1,
   "skills": {
+    "antfu": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "6935586ef3ab02e18747a4477d396e692bc96e8f28b0d95b374ffc37fce74cda"
+    },
+    "nuxt": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "9e8237ec92083db9a6f4c77d5e5bf4b1d9873d670671235bc75455ee1ca39c74"
+    },
+    "pinia": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "897b6b0982956f41f5cc85128ca638b625e1b3c8bc619e303cd1e7661c95b7de"
+    },
+    "pnpm": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "318f9fca2441a3e06fedc336e195dd18be5dbe901064e4fa71b76b40b096ab3a"
+    },
+    "slidev": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "4973bc1baf08fa1303f99ef3abce8ec3aedfb2637e4315de30a2421746b610e3"
+    },
     "superdesign": {
       "source": "superdesigndev/superdesign-skill",
       "sourceType": "github",
       "computedHash": "7208b5e2e1145d76abcd698b2a9085952d986022ec2d5d8b9f972106b1b2447b"
+    },
+    "tsdown": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "5d7a0732aa15849d7363d168c13eec9c4367c9e534397de3fc550d582ffea09b"
+    },
+    "turborepo": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "bb531fab09e44812e3dc41e77f08708fbb67984ed9421d3c6f54f741fe70c2a0"
+    },
+    "unocss": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "4b7a9f7b89994d5aef70b9d55cb7f65d6e80cea437d5786cd33bb5cf7231c7c4"
+    },
+    "vite": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "867ff66238f3152e9c494339ad08dc432dd0df5bcf5cc7a00b61a72b580eb908"
+    },
+    "vitepress": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "629d8ec4bcbf7cac86c15c3ca5f173933f01729bcb6396c0d74733755a896a41"
+    },
+    "vitest": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "669c7275f7e1379b06b2bcfa593603aead4c983b951c7e8edbc09640aa38d0a1"
+    },
+    "vue": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "9c241141e07e836e4f0537c63e8f929fba3767c2997250be38e699f19b75e3f2"
+    },
+    "vue-best-practices": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "d7d22c8cb343583c3904692c4d1d7b50382945e433e4f6e053f4aabb9846cbc3"
+    },
+    "vue-router-best-practices": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "e27384f4e6c8c70a612e76b74e4387efb8e291a6a1e3aa14a69102a4ce4b4654"
+    },
+    "vue-testing-best-practices": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "18c7d8f42f350f927e37de055e34c97b8cfb9f79c12cf942f7f3d2a0821057b5"
+    },
+    "vueuse-functions": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "fedfc78f035a88fe3e9d823f44725fe8981486c55b966c17fbd0d7c28339e49a"
+    },
+    "web-design-guidelines": {
+      "source": "antfu/skills",
+      "sourceType": "github",
+      "computedHash": "65a2e7d85753383ae0f88df15475d58b9e39723e9c4bb6891421d6144a85f79c"
     }
   }
 }