Alves: update _extra-child-theme

alves/sass/_extra-child-theme.scss

@@ -117,11 +117,13 @@ input[type="submit"],
 }
 
 .widget-title {
-	font-family: $font_family_primary;
+	font-family: $font_family_primary; // For browsers without support for CSS custom properties.
+	font-family: var( --font-headings, $font_family_primary );
 }
 
 blockquote cite {
-	font-family: $font_family_secondary;
+	font-family: $font_family_secondary; // For browsers without support for CSS custom properties.
+	font-family: var( --font-base, $font_family_secondary );
 }
 
 .wp-block-quote p,
@@ -407,7 +409,8 @@ blockquote p {
 
 		a {
 			color: $color_foreground;
-			font-family: $font_family_secondary;
+			font-family: $font_family_secondary; // For browsers without support for CSS custom properties.
+			font-family: var( --font-base, $font_family_secondary );
 			padding: 0;
 			text-decoration: none;
 

alves/style-rtl.css

@@ -3659,10 +3659,12 @@ input[type="submit"],
 
 .widget-title {
 	font-family: "Lora", Georgia, sans-serif;
+	font-family: var(--font-headings, "Lora", Georgia, sans-serif);
 }
 
 blockquote cite {
 	font-family: "Karla", Arial, sans-serif;
+	font-family: var(--font-base, "Karla", Arial, sans-serif);
 }
 
 .wp-block-quote p,
@@ -3899,6 +3901,7 @@ blockquote p {
 .site-footer #footer-info-wrapper a {
 	color: #394d55;
 	font-family: "Karla", Arial, sans-serif;
+	font-family: var(--font-base, "Karla", Arial, sans-serif);
 	padding: 0;
 	text-decoration: none;
 }

alves/style.css

@@ -3688,10 +3688,12 @@ input[type="submit"],
 
 .widget-title {
 	font-family: "Lora", Georgia, sans-serif;
+	font-family: var(--font-headings, "Lora", Georgia, sans-serif);
 }
 
 blockquote cite {
 	font-family: "Karla", Arial, sans-serif;
+	font-family: var(--font-base, "Karla", Arial, sans-serif);
 }
 
 .wp-block-quote p,
@@ -3928,6 +3930,7 @@ blockquote p {
 .site-footer #footer-info-wrapper a {
 	color: #394d55;
 	font-family: "Karla", Arial, sans-serif;
+	font-family: var(--font-base, "Karla", Arial, sans-serif);
 	padding: 0;
 	text-decoration: none;
 }