diff --git a/style.css b/style.css
index 9f2fc46..9755374 100644
--- a/style.css
+++ b/style.css
@@ -69,12 +69,14 @@
     --err: 209, 41, 41;
     --focus: 255, 174, 12;
     --mono: "Iosevka", ui-monospace, monospace;
+    background: rgb(var(--bg));
+    color: rgb(var(--fg));
 }
-body.regex {
+:root:has(> body.regex) {
     --bg: 224, 242, 240;
     --checked: 12, 147, 129;
 }
-body.rhyme {
+:root:has(> body.rhyme) {
     --bg: 236, 230, 245;
     --checked: 113, 44, 232;
 }
@@ -83,8 +85,6 @@ body {
     margin: 0 auto;
     max-width: 600px;
     padding: 8px;
-    background: rgb(var(--bg));
-    color: rgb(var(--fg));
     line-height: 1.4;
     word-break: break-word;
 }
@@ -341,10 +341,10 @@ h2 {
     --link: 153, 204, 255;
     --err: 255, 153, 153;
 }
-:root.dark body.regex {
+:root.dark:has(> body.regex) {
     --bg: 3, 23, 20;
 }
-:root.dark body.rhyme {
+:root.dark:has(> body.rhyme) {
     --bg: 22, 10, 36;
     --checked: 143, 72, 224;
 }