diff --git a/src/styles/global.css b/src/styles/global.css
index a724145..e023383 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -1,10 +1,11 @@
 :root {
   --grid-gutter: 3rem;
+  --grid-max-width: 100rem;
 }
 
 body {
   margin: 0 auto;
-  max-width: min(100rem, 75%);
+  max-width: min(var(--grid-max-width), 75%);
 }
 
 a:focus {