Next refactors

lib/presentation/welcome/widgets/initial_prompt.dart

@@ -0,0 +1,208 @@
+import 'package:flutter/material.dart';
+import 'package:google_fonts/google_fonts.dart';
+import 'package:trainhub_flutter/core/constants/ui_constants.dart';
+import 'package:trainhub_flutter/core/theme/app_colors.dart';
+import 'package:trainhub_flutter/presentation/welcome/widgets/welcome_buttons.dart';
+
+class InitialPrompt extends StatelessWidget {
+  const InitialPrompt({
+    super.key,
+    required this.onDownload,
+    required this.onSkip,
+  });
+
+  final VoidCallback onDownload;
+  final VoidCallback onSkip;
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.center,
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        _buildLogoRow(),
+        const SizedBox(height: UIConstants.spacing32),
+        _buildHeadline(),
+        const SizedBox(height: UIConstants.spacing16),
+        _buildDescription(),
+        const SizedBox(height: UIConstants.spacing24),
+        _buildFeatureList(),
+        const SizedBox(height: UIConstants.spacing32),
+        _buildDownloadNotice(),
+        const SizedBox(height: UIConstants.spacing32),
+        _buildActionButtons(),
+      ],
+    );
+  }
+
+  Widget _buildLogoRow() {
+    return Row(
+      children: [
+        Container(
+          width: 48,
+          height: 48,
+          decoration: BoxDecoration(
+            color: AppColors.accentMuted,
+            borderRadius: BorderRadius.circular(12),
+          ),
+          child: const Icon(
+            Icons.fitness_center,
+            color: AppColors.accent,
+            size: 24,
+          ),
+        ),
+        const SizedBox(width: UIConstants.spacing12),
+        Text(
+          'TrainHub',
+          style: GoogleFonts.inter(
+            fontSize: 26,
+            fontWeight: FontWeight.w700,
+            color: AppColors.textPrimary,
+            letterSpacing: -0.5,
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildHeadline() {
+    return Text(
+      'AI-powered coaching,\nright on your device.',
+      style: GoogleFonts.inter(
+        fontSize: 28,
+        fontWeight: FontWeight.w700,
+        color: AppColors.textPrimary,
+        height: 1.25,
+        letterSpacing: -0.5,
+      ),
+    );
+  }
+
+  Widget _buildDescription() {
+    return Text(
+      'TrainHub uses on-device AI models to give you intelligent '
+      'training advice, exercise analysis, and personalised chat — '
+      'with zero data sent to the cloud.',
+      style: GoogleFonts.inter(
+        fontSize: 14,
+        color: AppColors.textSecondary,
+        height: 1.6,
+      ),
+    );
+  }
+
+  Widget _buildFeatureList() {
+    return const Column(
+      children: [
+        FeatureRow(
+          icon: Icons.lock_outline_rounded,
+          label: '100 % local — your data never leaves this machine.',
+        ),
+        SizedBox(height: UIConstants.spacing12),
+        FeatureRow(
+          icon: Icons.psychology_outlined,
+          label: 'Qwen 2.5 7B chat model for training advice.',
+        ),
+        SizedBox(height: UIConstants.spacing12),
+        FeatureRow(
+          icon: Icons.search_rounded,
+          label: 'Nomic embedding model for semantic exercise search.',
+        ),
+      ],
+    );
+  }
+
+  Widget _buildDownloadNotice() {
+    return Container(
+      padding: const EdgeInsets.symmetric(
+        horizontal: UIConstants.spacing16,
+        vertical: UIConstants.spacing12,
+      ),
+      decoration: BoxDecoration(
+        color: AppColors.accentMuted,
+        borderRadius: BorderRadius.circular(UIConstants.smallBorderRadius),
+        border: Border.all(
+          color: AppColors.accent.withValues(alpha: 0.3),
+        ),
+      ),
+      child: Row(
+        children: [
+          const Icon(
+            Icons.download_outlined,
+            color: AppColors.accent,
+            size: 18,
+          ),
+          const SizedBox(width: UIConstants.spacing12),
+          Expanded(
+            child: Text(
+              'The download is ~5 GB and only needs to happen once. '
+              'You can skip now and download later from Settings.',
+              style: GoogleFonts.inter(
+                fontSize: 13,
+                color: AppColors.accent,
+                height: 1.5,
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildActionButtons() {
+    return Row(
+      children: [
+        Expanded(
+          child: WelcomePrimaryButton(
+            label: 'Download Now',
+            icon: Icons.download_rounded,
+            onPressed: onDownload,
+          ),
+        ),
+        const SizedBox(width: UIConstants.spacing12),
+        Expanded(
+          child: WelcomeSecondaryButton(
+            label: 'Skip for Now',
+            onPressed: onSkip,
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+class FeatureRow extends StatelessWidget {
+  const FeatureRow({super.key, required this.icon, required this.label});
+
+  final IconData icon;
+  final String label;
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Container(
+          width: 28,
+          height: 28,
+          decoration: BoxDecoration(
+            color: AppColors.surfaceContainerHigh,
+            borderRadius: BorderRadius.circular(6),
+          ),
+          child: Icon(icon, size: 14, color: AppColors.accent),
+        ),
+        const SizedBox(width: UIConstants.spacing12),
+        Expanded(
+          child: Text(
+            label,
+            style: GoogleFonts.inter(
+              fontSize: 13,
+              color: AppColors.textSecondary,
+              height: 1.5,
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}