Sophisticated Business: Revise columns block spacing math

sophisticated-business/sass/blocks/_blocks.scss

@@ -862,8 +862,8 @@
 		@include media(tablet) {
 
 			.wp-block-column {
-				margin-left: $size__spacing-unit;
-				margin-right: $size__spacing-unit;
+				margin-left: #{0.5 * $size__spacing-unit};
+				margin-right: #{0.5 * $size__spacing-unit};
 
 				&:first-child {
 					margin-left: 0;

sophisticated-business/style-rtl.css

@@ -4237,8 +4237,8 @@ body.page .main-navigation {
 
 @media only screen and (min-width: 768px) {
   .entry .entry-content .wp-block-columns .wp-block-column {
-    margin-right: 1rem;
-    margin-left: 1rem;
+    margin-right: 0.5rem;
+    margin-left: 0.5rem;
   }
   .entry .entry-content .wp-block-columns .wp-block-column:first-child {
     margin-right: 0;

sophisticated-business/style.css

@@ -4249,8 +4249,8 @@ body.page .main-navigation {
 
 @media only screen and (min-width: 768px) {
   .entry .entry-content .wp-block-columns .wp-block-column {
-    margin-left: 1rem;
-    margin-right: 1rem;
+    margin-left: 0.5rem;
+    margin-right: 0.5rem;
   }
   .entry .entry-content .wp-block-columns .wp-block-column:first-child {
     margin-left: 0;