feat: Major update with validators, skills, dashboard, and docs reorganization

- Add validation framework (config, model, results, study validators)
- Add Claude Code skills (create-study, run-optimization, generate-report,
  troubleshoot, analyze-model)
- Add Atomizer Dashboard (React frontend + FastAPI backend)
- Reorganize docs into structured directories (00-09)
- Add neural surrogate modules and training infrastructure
- Add multi-objective optimization support

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

atomizer-dashboard/frontend/src/index.css

@@ -0,0 +1,69 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+@layer base {
+  body {
+    @apply bg-dark-700 text-dark-50;
+  }
+}
+
+@layer components {
+  .card {
+    @apply bg-dark-600 rounded-lg shadow-lg p-6;
+  }
+
+  .btn {
+    @apply px-4 py-2 rounded-md font-semibold transition-all duration-200;
+  }
+
+  .btn-primary {
+    @apply btn bg-primary-500 text-white hover:bg-primary-600;
+  }
+
+  .btn-secondary {
+    @apply btn bg-dark-500 text-dark-50 hover:bg-dark-400;
+  }
+
+  .input {
+    @apply bg-dark-500 border border-dark-400 rounded-md px-3 py-2 text-dark-50 focus:outline-none focus:ring-2 focus:ring-primary-500;
+  }
+
+  .badge {
+    @apply inline-block px-2 py-1 text-xs font-semibold rounded-full;
+  }
+
+  .badge-success {
+    @apply badge bg-green-900 text-green-300;
+  }
+
+  .badge-warning {
+    @apply badge bg-yellow-900 text-yellow-300;
+  }
+
+  .badge-error {
+    @apply badge bg-red-900 text-red-300;
+  }
+
+  .badge-info {
+    @apply badge bg-blue-900 text-blue-300;
+  }
+}
+
+/* Custom scrollbar */
+::-webkit-scrollbar {
+  width: 8px;
+  height: 8px;
+}
+
+::-webkit-scrollbar-track {
+  @apply bg-dark-700;
+}
+
+::-webkit-scrollbar-thumb {
+  @apply bg-dark-500 rounded-full;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  @apply bg-dark-400;
+}