diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e0752b3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,27 @@
+# Visual Studio
+.vs/
+*.user
+*.suo
+
+# Build output
+bin/
+obj/
+
+# Logs
+Logs/
+*.log
+
+# Runtime / secrets
+appsettings.Development.json
+
+# Docker
+docker-compose.override.yml
+
+# Tools / IDE plugins
+.claude/
+.superpowers/
+.svn/
+
+# OS
+Thumbs.db
+.DS_Store