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 // stylelint-disable property-blacklist, scss/dollar-variable-default
 
 // SCSS RFS mixin
 //
 // Automated responsive values for font sizes, paddings, margins and much more
 //
 // Licensed under MIT (https://github.com/twbs/rfs/blob/master/LICENSE)
 
 // Configuration
 
 // Base value
 $rfs-base-value: 1.25rem !default;
 $rfs-unit: rem !default;
 
 @if $rfs-unit != rem and $rfs-unit != px {
   @error "`#{$rfs-unit}` is not a valid unit for $rfs-unit. Use `px` or `rem`.";
 }
 
 // Breakpoint at where values start decreasing if screen width is smaller
 $rfs-breakpoint: 1200px !default;
 $rfs-breakpoint-unit: px !default;
 
 @if $rfs-breakpoint-unit != px and $rfs-breakpoint-unit != em and $rfs-breakpoint-unit != rem {
   @error "`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`.";
 }
 
 // Resize values based on screen height and width
 $rfs-two-dimensional: false !default;
 
 // Factor of decrease
 $rfs-factor: 10 !default;
 
 @if type-of($rfs-factor) != number or $rfs-factor <= 1 {
   @error "`#{$rfs-factor}` is not a valid  $rfs-factor, it must be greater than 1.";
 }
 
 // Mode. Possibilities: "min-media-query", "max-media-query"
 $rfs-mode: min-media-query !default;
 
 // Generate enable or disable classes. Possibilities: false, "enable" or "disable"
 $rfs-class: false !default;
 
 // 1 rem = $rfs-rem-value px
 $rfs-rem-value: 16 !default;
 
 // Safari iframe resize bug: https://github.com/twbs/rfs/issues/14
 $rfs-safari-iframe-resize-bug-fix: false !default;
 
 // Disable RFS by setting $enable-rfs to false
 $enable-rfs: true !default;
 
 // Cache $rfs-base-value unit
 $rfs-base-value-unit: unit($rfs-base-value);
 
 // Remove px-unit from $rfs-base-value for calculations
 @if $rfs-base-value-unit == px {
   $rfs-base-value: $rfs-base-value / ($rfs-base-value * 0 + 1);
 }
 @else if $rfs-base-value-unit == rem {
   $rfs-base-value: $rfs-base-value / ($rfs-base-value * 0 + 1 / $rfs-rem-value);
 }
 
 // Cache $rfs-breakpoint unit to prevent multiple calls
 $rfs-breakpoint-unit-cache: unit($rfs-breakpoint);
 
 // Remove unit from $rfs-breakpoint for calculations
 @if $rfs-breakpoint-unit-cache == px {
   $rfs-breakpoint: $rfs-breakpoint / ($rfs-breakpoint * 0 + 1);
 }
 @else if $rfs-breakpoint-unit-cache == rem or $rfs-breakpoint-unit-cache == "em" {
   $rfs-breakpoint: $rfs-breakpoint / ($rfs-breakpoint * 0 + 1 / $rfs-rem-value);
 }
 
 // Calculate the media query value
 $rfs-mq-value: if($rfs-breakpoint-unit == px, #{$rfs-breakpoint}px, #{$rfs-breakpoint / $rfs-rem-value}#{$rfs-breakpoint-unit});
 $rfs-mq-property-width: if($rfs-mode == max-media-query, max-width, min-width);
 $rfs-mq-property-height: if($rfs-mode == max-media-query, max-height, min-height);
 
 // Internal mixin used to determine which media query needs to be used
 @mixin _rfs-media-query {
   @if $rfs-two-dimensional {
     @if $rfs-mode == max-media-query {
       @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}), (#{$rfs-mq-property-height}: #{$rfs-mq-value}) {
         @content;
       }
     }
     @else {
       @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) and (#{$rfs-mq-property-height}: #{$rfs-mq-value}) {
         @content;
       }
     }
   }
   @else {
     @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) {
       @content;
     }
   }
 }
 
 // Internal mixin that adds disable classes to the selector if needed.
 @mixin _rfs-rule {
   @if $rfs-class == disable and $rfs-mode == max-media-query {
     // Adding an extra class increases specificity, which prevents the media query to override the property
     &,
     .disable-rfs &,
     &.disable-rfs {
       @content;
     }
   }
   @else if $rfs-class == enable and $rfs-mode == min-media-query {
     .enable-rfs &,
     &.enable-rfs {
       @content;
     }
   }
   @else {
     @content;
   }
 }
 
 // Internal mixin that adds enable classes to the selector if needed.
 @mixin _rfs-media-query-rule {
 
   @if $rfs-class == enable {
     @if $rfs-mode == min-media-query {
       @content;
     }
 
     @include _rfs-media-query {
       .enable-rfs &,
       &.enable-rfs {
         @content;
       }
     }
   }
   @else {
     @if $rfs-class == disable and $rfs-mode == min-media-query {
       .disable-rfs &,
       &.disable-rfs {
         @content;
       }
     }
     @include _rfs-media-query {
       @content;
     }
   }
 }
 
 // Helper function to get the formatted non-responsive value
 @function rfs-value($values) {
   // Convert to list
   $values: if(type-of($values) != list, ($values,), $values);
 
   $val: '';
 
   // Loop over each value and calculate value
   @each $value in $values {
     @if $value == 0 {
       $val: $val + ' 0';
     }
     @else {
       // Cache $value unit
       $unit: if(type-of($value) == "number", unit($value), false);
 
       @if $unit == px {
         // Convert to rem if needed
         $val: $val + ' ' + if($rfs-unit == rem, #{$value / ($value * 0 + $rfs-rem-value)}rem, $value);
       }
       @else if $unit == rem {
         // Convert to px if needed
         $val: $val + ' ' + if($rfs-unit == px, #{$value / ($value * 0 + 1) * $rfs-rem-value}px, $value);
       }
       @else {
         // If $value isn't a number (like inherit) or $value has a unit (not px or rem, like 1.5em) or $ is 0, just print the value
         $val: $val + ' ' + $value;
       }
     }
   }
 
   // Remove first space
   @return unquote(str-slice($val, 2));
 }
 
 // Helper function to get the responsive value calculated by RFS
 @function rfs-fluid-value($values) {
   // Convert to list
   $values: if(type-of($values) != list, ($values,), $values);
 
   $val: '';
 
   // Loop over each value and calculate value
   @each $value in $values {
     @if $value == 0 {
       $val: $val + ' 0';
     }
 
     @else {
       // Cache $value unit
       $unit: if(type-of($value) == "number", unit($value), false);
 
       // If $value isn't a number (like inherit) or $value has a unit (not px or rem, like 1.5em) or $ is 0, just print the value
       @if not $unit or $unit != px and $unit != rem {
         $val: $val + ' ' + $value;
       }
 
       @else {
         // Remove unit from $value for calculations
         $value: $value / ($value * 0 + if($unit == px, 1, 1 / $rfs-rem-value));
 
         // Only add the media query if the value is greater than the minimum value
         @if abs($value) <= $rfs-base-value or not $enable-rfs {
           $val: $val + ' ' +  if($rfs-unit == rem, #{$value / $rfs-rem-value}rem, #{$value}px);
         }
         @else {
           // Calculate the minimum value
           $value-min: $rfs-base-value + (abs($value) - $rfs-base-value) / $rfs-factor;
 
           // Calculate difference between $value and the minimum value
           $value-diff: abs($value) - $value-min;
 
           // Base value formatting
           $min-width: if($rfs-unit == rem, #{$value-min / $rfs-rem-value}rem, #{$value-min}px);
 
           // Use negative value if needed
           $min-width: if($value < 0, -$min-width, $min-width);
 
           // Use `vmin` if two-dimensional is enabled
           $variable-unit: if($rfs-two-dimensional, vmin, vw);
 
           // Calculate the variable width between 0 and $rfs-breakpoint
           $variable-width: #{$value-diff * 100 / $rfs-breakpoint}#{$variable-unit};
 
           // Return the calculated value
           $val: $val + ' calc(' + $min-width + if($value < 0, ' - ', ' + ') + $variable-width + ')';
         }
       }
     }
   }
 
   // Remove first space
   @return unquote(str-slice($val, 2));
 }
 
 // RFS mixin
 @mixin rfs($values, $property: font-size) {
   @if $values != null {
     $val: rfs-value($values);
     $fluidVal: rfs-fluid-value($values);
 
     // Do not print the media query if responsive & non-responsive values are the same
     @if $val == $fluidVal {
       #{$property}: $val;
     }
     @else {
       @include _rfs-rule {
         #{$property}: if($rfs-mode == max-media-query, $val, $fluidVal);
 
         // Include safari iframe resize fix if needed
         min-width: if($rfs-safari-iframe-resize-bug-fix, (0 * 1vw), null);
       }
 
       @include _rfs-media-query-rule {
         #{$property}: if($rfs-mode == max-media-query, $fluidVal, $val);
       }
     }
   }
 }
 
 // Shorthand helper mixins
 @mixin font-size($value) {
   @include rfs($value);
 }
 
 @mixin padding($value) {
   @include rfs($value, padding);
 }
 
 @mixin padding-top($value) {
   @include rfs($value, padding-top);
 }
 
 @mixin padding-right($value) {
   @include rfs($value, padding-right);
 }
 
 @mixin padding-bottom($value) {
   @include rfs($value, padding-bottom);
 }
 
 @mixin padding-left($value) {
   @include rfs($value, padding-left);
 }
 
 @mixin margin($value) {
   @include rfs($value, margin);
 }
 
 @mixin margin-top($value) {
   @include rfs($value, margin-top);
 }
 
 @mixin margin-right($value) {
   @include rfs($value, margin-right);
 }
 
 @mixin margin-bottom($value) {
   @include rfs($value, margin-bottom);
 }
 
 @mixin margin-left($value) {
   @include rfs($value, margin-left);
 }

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