Phase 1: Homepage seamless design - add gradient transitions

- Added gradient transitions between sections in global.css
- Portfolio section now has gradient-top (dark to white fade)
- Blog section now has gradient-bottom (white fade from dark)
- Reduced portfolio overlay opacity from 0.85 to 0.65
- Added border to blog cards for white-on-white visibility
- Blog cards now have primary color accent on hover

.omc/sessions/e5f480d6-2b75-4bfe-b154-b1e53e34e0a3.json

@@ -0,0 +1,8 @@
+{
+  "session_id": "e5f480d6-2b75-4bfe-b154-b1e53e34e0a3",
+  "ended_at": "2026-05-14T02:42:09.203Z",
+  "reason": "prompt_input_exit",
+  "agents_spawned": 0,
+  "agents_completed": 0,
+  "modes_used": []
+}