Make subtitles larger and center them in middle of screen

- Increase font size from 32 to 56 for better visibility
- Change alignment from 2 (bottom center) to 5 (center middle)
- Reduce margins to 50 for true center positioning
- Increase outline to 3 and shadow to 2 for better contrast
- Perfect for video editing workflows (chroma key, etc.)

User will composite in editing app, so centered positioning is ideal.

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/subtitle_generator.py

@@ -116,12 +116,15 @@ class SubtitleGenerator:
         self,
         verses: List[MatchedVerse],
         filename: str = "quran_subtitles.ass",
-        font_size: int = 32
+        font_size: int = 56
     ) -> str:
         """Generate ASS subtitle file with proper styling for Arabic"""
         output_path = self.output_dir / filename
 
         # ASS header with proper styling
+        # Alignment: 5 = center middle (perfect for video editing)
+        # Larger font size (56) for better visibility
+        # Minimal margins for true center positioning
         ass_content = [
             "[Script Info]",
             "ScriptType: v4.00+",
@@ -131,7 +134,7 @@ class SubtitleGenerator:
             "",
             "[V4+ Styles]",
             "Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding",
-            f"Style: Default,Arial,{font_size},&H00FFFFFF,&H000000FF,&H00000000,&H80000000,0,0,0,0,100,100,0,0,1,2,1,2,120,120,80,1",
+            f"Style: Default,Arial,{font_size},&H00FFFFFF,&H000000FF,&H00000000,&H80000000,0,0,0,0,100,100,0,0,1,3,2,5,50,50,50,1",
             "",
             "[Events]",
             "Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text"

src/video_generator.py

@@ -130,7 +130,7 @@ class VideoGenerator:
         output_path: str,
         background_image: Optional[str] = None,
         resolution: str = "1920x1080",
-        font_size: int = 32,
+        font_size: int = 56,
         font_color: str = "white",
         bg_color: str = "black",
         ass_path: Optional[str] = None