perf: remove framer-motion and lucide-react from critical path

- Remove framer-motion from Hero.tsx and HeaderClient.tsx, replace with CSS animations/transitions
- Replace lucide-react icons (Menu, X, Mail) with inline SVGs in HeaderClient.tsx
- Lazy-load About, Projects, Contact, Footer via dynamic() imports in ClientWrappers.tsx
- Defer ShaderGradient/BackgroundBlobs loading via requestIdleCallback in ClientProviders.tsx
- Remove AnimatePresence page wrapper that caused full re-renders
- Enable experimental.optimizeCss (critters) for critical CSS inlining
- Add fadeIn keyframe to Tailwind config for CSS-based animations

Homepage JS reduced from 563KB to 438KB (-125KB).
Eliminates ~39s main thread work from WebGL init and layout thrashing.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

package-lock.json

@@ -56,6 +56,7 @@
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         "@types/sanitize-html": "^2.16.0",
         "autoprefixer": "^10.4.24",
+        "critters": "^0.0.23",
         "cross-env": "^7.0.3",
         "eslint": "^9",
         "eslint-config-next": "^15.5.7",
@@ -7260,6 +7261,13 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/boolbase": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/boolbase/-/boolbase-1.0.0.tgz",
+      "integrity": "sha512-JZOSA7Mo9sNGB8+UjSgzdLtokWAky1zbztM3WRLCbZ70/3cTANmQmOdR7y2g+J0e2WXywy1yS468tY+IruqEww==",
+      "dev": true,
+      "license": "ISC"
+    },
     "node_modules/brace-expansion": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
@@ -7847,6 +7855,22 @@
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       "license": "MIT"
     },
+    "node_modules/critters": {
+      "version": "0.0.23",
+      "resolved": "https://registry.npmjs.org/critters/-/critters-0.0.23.tgz",
+      "integrity": "sha512-/MCsQbuzTPA/ZTOjjyr2Na5o3lRpr8vd0MZE8tMP0OBNg/VrLxWHteVKalQ8KR+fBmUadbJLdoyEz9sT+q84qg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "chalk": "^4.1.0",
+        "css-select": "^5.1.0",
+        "dom-serializer": "^2.0.0",
+        "domhandler": "^5.0.2",
+        "htmlparser2": "^8.0.2",
+        "postcss": "^8.4.23",
+        "postcss-media-query-parser": "^0.2.3"
+      }
+    },
     "node_modules/cross-env": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/cross-env/-/cross-env-7.0.3.tgz",
@@ -7910,6 +7934,23 @@
         "node": ">=16"
       }
     },
+    "node_modules/css-select": {
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/css-select/-/css-select-5.2.2.tgz",
+      "integrity": "sha512-TizTzUddG/xYLA3NXodFM0fSbNizXjOKhqiQQwvhlspadZokn1KDy0NZFS0wuEubIYAV5/c1/lAr0TaaFXEXzw==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "boolbase": "^1.0.0",
+        "css-what": "^6.1.0",
+        "domhandler": "^5.0.2",
+        "domutils": "^3.0.1",
+        "nth-check": "^2.0.1"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/fb55"
+      }
+    },
     "node_modules/css-to-react-native": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/css-to-react-native/-/css-to-react-native-3.2.0.tgz",
@@ -7921,6 +7962,19 @@
         "postcss-value-parser": "^4.0.2"
       }
     },
+    "node_modules/css-what": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/css-what/-/css-what-6.2.2.tgz",
+      "integrity": "sha512-u/O3vwbptzhMs3L1fQE82ZSLHQQfto5gyZzwteVIEyeaY5Fc7R4dapF/BvRoSYFeqfBk4m0V1Vafq5Pjv25wvA==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">= 6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/fb55"
+      }
+    },
     "node_modules/css.escape": {
       "version": "1.5.1",
       "resolved": "https://registry.npmjs.org/css.escape/-/css.escape-1.5.1.tgz",
@@ -13532,6 +13586,19 @@
         "node": ">=8"
       }
     },
+    "node_modules/nth-check": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.1.1.tgz",
+      "integrity": "sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "boolbase": "^1.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/nth-check?sponsor=1"
+      }
+    },
     "node_modules/nwsapi": {
       "version": "2.2.23",
       "resolved": "https://registry.npmjs.org/nwsapi/-/nwsapi-2.2.23.tgz",
@@ -14252,6 +14319,13 @@
         }
       }
     },
+    "node_modules/postcss-media-query-parser": {
+      "version": "0.2.3",
+      "resolved": "https://registry.npmjs.org/postcss-media-query-parser/-/postcss-media-query-parser-0.2.3.tgz",
+      "integrity": "sha512-3sOlxmbKcSHMjlUXQZKQ06jOswE7oVkXPxmZdoB1r5l0q6gTFTQSHxNxOrCccElbW7dxNytifNEo8qidX2Vsig==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/postcss-nested": {
       "version": "6.2.0",
       "resolved": "https://registry.npmjs.org/postcss-nested/-/postcss-nested-6.2.0.tgz",