diff --git a/.gitignore b/.gitignore
index 4da467a..09bced2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,11 @@
 # Claude Code project instructions
 CLAUDE.md
 
+# Build output
+_site/
+docs/*.html
+docs/*.css
+
 # Test binaries
 hello
 test_rc