fix: use sass math.div instead of simple paren

src/scss/utils/functions/_layout.scss

@@ -2,20 +2,21 @@
 // Now we divide it to 12, to use a 12th-width grid.
 // Also, 2/3 means 0.666667, which is a number decreased or added to the result
 // of 96/12 to balance everything.
+@use 'sass:math';
 
 @function column-width($part) {
   @if $part >= 1 and $part < 6 {
-    $size: (((96 / 12) * $part) - ((6 - $part) * (2 / 3)));
-    @return percentage($size / 100);
+    $size: ((math.div(96, 12) * $part) - ((6 - $part) * math.div(2, 3)));
+    @return percentage(calc($size / 100));
   }
 
   @else if $part >= 6 and $part < 12 {
-    $size: (((96 / 12) * $part) + (($part - 6) * (2 / 3)));
-    @return percentage($size / 100);
+    $size: ((math.div(96, 12) * $part) + (($part - 6) * math.div(2, 3)));
+    @return percentage(math.div($size, 100));
   }
 }
 
 @function offset-column-margin($part) {
-  $size: ((96 / 12) * $part) + ($part * (2 / 3));
-  @return percentage($size / 100);
+  $size: (math.div(96, 12) * $part) + ($part * math.div(2, 3));
+  @return percentage(math.div($size, 100));
 }