Merge pull request #67 from eqtylab/logo-and-theming

docs: logo fixes, colour theming, and formatting improvements

Author: Shrinks99

README.md

@@ -1,9 +1,13 @@
-<p align="left">
-    <img src="docs/docs/assets/cupcake-static.svg" alt="A 2D illustrated guard dog" width="180">
-</p>
-
 # Cupcake
 
+<div align="left">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="docs/docs/assets/cupcake-light.svg">
+    <source media="(prefers-color-scheme: light)" srcset="docs/docs/assets/cupcake-dark.svg">
+    <img alt="Fallback image description" src="docs/docs/assets/cupcake-responsive.svg" width="200">
+  </picture>
+</div>
+
 A guard dog that makes AI agents follow the rules.
 
 [![Tests](https://img.shields.io/github/actions/workflow/status/eqtylab/cupcake/ci.yml?branch=main&label=tests)](https://github.com/eqtylab/cupcake/actions/workflows/ci.yml)
@@ -151,7 +155,7 @@ If you use Cupcake in your research or project, please cite it as follows:
   title = {{Cupcake: Policy enforcement for AI agents}},
   year = {2025},
   publisher = {EQTYLab},
-  url = {[https://github.com/eqtylab/cupcake](https://github.com/eqtylab/cupcake)}
+  url = {https://cupcake.eqtylab.io}
 }
 ```