asw-v01: drop OpenProps, native CSS tokens system

- Replace OpenProps (~25KB) with native src/tokens.css (~40 tokens)
- Remove open-props, postcss-import from package.json + postcss.config
- Update main.css: remove @import open-props/*, import ./tokens.css
- Rewrite 01-tokens.css header to reference tokens.css
- All raw OpenProps values (font stacks, sizes, weights, colors,
  easings, durations, shadows, radii, animations, media queries)
  now defined natively in tokens.css
- Build uses cat concat + cssnano (no postcss-import needed)
- Build output: 78KB minified (saved ~24KB from OpenProps removal)

package-lock.json

@@ -5,16 +5,12 @@
   "packages": {
     "": {
       "name": "asw",
-      "dependencies": {
-        "open-props": "^1.7.0"
-      },
       "devDependencies": {
         "cssnano": "^7.0.0",
         "decap-server": "^3.6.0",
         "postcss": "^8.4.0",
         "postcss-cli": "^11.0.0",
-        "postcss-custom-media": "^11.0.0",
-        "postcss-import": "^16.0.0"
+        "postcss-custom-media": "^11.0.0"
       }
     },
     "node_modules/@colordx/core": {
@@ -1508,22 +1504,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/is-core-module": {
-      "version": "2.16.1",
-      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.16.1.tgz",
-      "integrity": "sha512-UfoeMA6fIJ8wTYFEUjelnaGI67v6+N7qXJEvQuIGa99l4xsCruSYOVSQ0uPANn4dAzm8lkYPaKLrrijLq7x23w==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "hasown": "^2.0.2"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
     "node_modules/is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -1887,12 +1867,6 @@
         "fn.name": "1.x.x"
       }
     },
-    "node_modules/open-props": {
-      "version": "1.7.23",
-      "resolved": "https://registry.npmjs.org/open-props/-/open-props-1.7.23.tgz",
-      "integrity": "sha512-+xyrJmxV9QUBFbSwPROYhOg/FLXry+uuPr4R+B5EaE4556Oc18/8ZC/fL5A+/lbRSwNvA0Alh+C0KpyFWLmLZg==",
-      "license": "MIT"
-    },
     "node_modules/parseurl": {
       "version": "1.3.3",
       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
@@ -1903,13 +1877,6 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/path-parse": {
-      "version": "1.0.7",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
-      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/path-to-regexp": {
       "version": "0.1.13",
       "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.13.tgz",
@@ -2142,24 +2109,6 @@
         "postcss": "^8.4.32"
       }
     },
-    "node_modules/postcss-import": {
-      "version": "16.1.1",
-      "resolved": "https://registry.npmjs.org/postcss-import/-/postcss-import-16.1.1.tgz",
-      "integrity": "sha512-2xVS1NCZAfjtVdvXiyegxzJ447GyqCeEI5V7ApgQVOWnros1p5lGNovJNapwPpMombyFBfqDwt7AD3n2l0KOfQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "postcss-value-parser": "^4.0.0",
-        "read-cache": "^1.0.0",
-        "resolve": "^1.1.7"
-      },
-      "engines": {
-        "node": ">=18.0.0"
-      },
-      "peerDependencies": {
-        "postcss": "^8.0.0"
-      }
-    },
     "node_modules/postcss-load-config": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/postcss-load-config/-/postcss-load-config-5.1.0.tgz",
@@ -2692,27 +2641,6 @@
         "node": ">=0.10.0"
       }
     },
-    "node_modules/resolve": {
-      "version": "1.22.11",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.11.tgz",
-      "integrity": "sha512-RfqAvLnMl313r7c9oclB1HhUEAezcpLjz95wFH4LVuhk9JF/r22qmVP9AMmOU4vMX7Q8pN8jwNg/CSpdFnMjTQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "is-core-module": "^2.16.1",
-        "path-parse": "^1.0.7",
-        "supports-preserve-symlinks-flag": "^1.0.0"
-      },
-      "bin": {
-        "resolve": "bin/resolve"
-      },
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
     "node_modules/safe-buffer": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
@@ -3033,19 +2961,6 @@
         "postcss": "^8.4.32"
       }
     },
-    "node_modules/supports-preserve-symlinks-flag": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
-      "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 0.4"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/ljharb"
-      }
-    },
     "node_modules/svgo": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/svgo/-/svgo-4.0.1.tgz",