diff --git a/frontend/src/routes/layout.css b/frontend/src/routes/layout.css
index 15e7d081..4f7bfe0e 100644
--- a/frontend/src/routes/layout.css
+++ b/frontend/src/routes/layout.css
@@ -5,6 +5,9 @@
 
 /* ─── 2. Raw palette — never used directly in components ──────────────────── */
 @theme {
+	/* Breakpoints */
+	--breakpoint-xs: 375px;
+
 	/* Brand palette constants */
 	--palette-navy: #012851;
 	--palette-mint: #a1dcd8;