diff --git a/static/style.css b/static/style.css
index 2ba09d7..a1ab463 100644
--- a/static/style.css
+++ b/static/style.css
@@ -1,3 +1,4 @@
+/* Default theme */
 /* Node styling */
 .node {
     max-width: min(650px, 100ex);
@@ -88,3 +89,21 @@ article.post {
     max-width: min(650px, 100ex);
     margin: 0 auto;
 }
+
+/* Dark mode. */
+@media (prefers-color-scheme: dark) {
+    html {
+        background-color: #0f110e;
+        color: #fafafe;
+    }
+    h2 a {
+        color: #fafafe;
+    }
+    a {
+        color: #aaf;
+    }
+    h1,h2,h3,h4,h5,h6 {
+        margin-top: 0;
+        color: #adbac7;
+    }
+}