diff --git a/themes/custom-theme.css b/themes/custom-theme.css
new file mode 100644
index 0000000..adbdb37
--- /dev/null
+++ b/themes/custom-theme.css
@@ -0,0 +1,36 @@
+/* @theme custom-theme */
+
+@import-theme "gaia";
+
+section {
+  background-color: #f0f8ff;
+  color: #2c3e50;
+  font-size: 0.85em;
+}
+
+h1 {
+  color: #3498db;
+  text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
+}
+
+h2 {
+  color: #e74c3c;
+}
+
+ul, ol {
+  font-size: 0.8em;
+}
+
+code {
+  background-color: #ecf0f1;
+  color: #2c3e50;
+  padding: 2px 4px;
+  border-radius: 3px;
+}
+
+blockquote {
+  border-left: 4px solid #3498db;
+  background-color: #ecf0f1;
+  padding: 10px;
+  margin: 10px 0;
+}
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