diff --git a/wwwroot/styles.css b/wwwroot/styles.css
index 7c10023..710888f 100644
--- a/wwwroot/styles.css
+++ b/wwwroot/styles.css
@@ -130,7 +130,16 @@ button.ghost { background: transparent; border-color: #d5c7b5; color: #2c1c0d; }
 .hint.warning { color: #c26c1a; }
 .disabled-form { opacity: 0.5; pointer-events: none; }
 
-.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-top: 12px; }
+.card-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
+  gap: 12px;
+  margin-top: 12px;
+  width: 100%;
+  max-width: 900px;
+  margin-inline: auto;
+}
+.results-grid { max-width: none; }
 
 .game-card {
   background: #fffaf3;