Make textboxes look dark

src/assets/scss/_variables.scss

@@ -28,7 +28,19 @@ $red:          hsl(348, 100%, 61%) !default;
 
 // Typography
 
-$family-sans-serif: BlinkMacSystemFont, -apple-system, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", "Helvetica", "Arial", sans-serif !default;
+$family-sans-serif: BlinkMacSystemFont,
+-apple-system,
+"Segoe UI",
+"Roboto",
+"Oxygen",
+"Ubuntu",
+"Cantarell",
+"Fira Sans",
+"Droid Sans",
+"Helvetica Neue",
+"Helvetica",
+"Arial",
+sans-serif !default;
 $family-monospace: monospace !default;
 $render-mode: optimizeLegibility !default;
 
@@ -72,7 +84,6 @@ $speed: 86ms !default;
 
 $variable-columns: true !default;
 
-
 // The default Bulma derived variables are declared below
 
 $primary: $turquoise !default;
@@ -150,3 +161,11 @@ $size-small: $size-7 !default;
 $size-normal: $size-6 !default;
 $size-medium: $size-5 !default;
 $size-large: $size-4 !default;
+
+// Input box styling
+
+$input-color: $white;
+$input-background-color: $black-ter;
+$input-border-color: $grey-darker;
+$input-focus-border-color: $turquoise;
+$input-hover-border-color: scale-color($turquoise, $lightness: -30%);