diff --git a/_sass/base.scss b/_sass/base.scss
index 0dc1ddb..f02880c 100644
--- a/_sass/base.scss
+++ b/_sass/base.scss
@@ -104,6 +104,6 @@ blockquote {
   // resets user-agent stylesheets for blockquotes
   margin-block-start: 0;
   margin-inline-start: 0;
-  padding-left: 15px;
+  padding-left: 1rem;
   border-left: 3px solid $border-color;
 }
diff --git a/_sass/print.scss b/_sass/print.scss
index 5702f15..ee76a3c 100644
--- a/_sass/print.scss
+++ b/_sass/print.scss
@@ -21,7 +21,7 @@
   }
 
   .site-title {
-    font-size: $root-font-size !important;
+    font-size: 1rem !important;
     font-weight: 700 !important;
   }
 
diff --git a/_sass/search.scss b/_sass/search.scss
index 6cfe95e..cf8796f 100644
--- a/_sass/search.scss
+++ b/_sass/search.scss
@@ -42,7 +42,7 @@
   width: 100%;
   height: 100%;
   padding: $sp-2 $gutter-spacing-sm $sp-2 #{$gutter-spacing-sm + $sp-5};
-  font-size: 16px;
+  font-size: 1rem;
   color: $body-text-color;
   background-color: $search-background-color;
   border-top: 0;
@@ -53,7 +53,7 @@
 
   @include mq(md) {
     padding: $sp-2 $gutter-spacing-sm $sp-2 #{$gutter-spacing + $sp-5};
-    font-size: 14px;
+    font-size: 0.875rem;
     background-color: $body-background-color;
     transition: padding-left linear #{$transition-duration * 0.5};
   }
diff --git a/_sass/support/_functions.scss b/_sass/support/_functions.scss
deleted file mode 100644
index 290709a..0000000
--- a/_sass/support/_functions.scss
+++ /dev/null
@@ -1,9 +0,0 @@
-@function rem($size, $unit: "") {
-  $rem-size: $size / $root-font-size;
-
-  @if $unit == false {
-    @return #{$rem-size};
-  } @else {
-    @return #{$rem-size}rem;
-  }
-}
diff --git a/_sass/support/_variables.scss b/_sass/support/_variables.scss
index 42a1cf8..6767357 100644
--- a/_sass/support/_variables.scss
+++ b/_sass/support/_variables.scss
@@ -3,7 +3,7 @@
 $body-font-family: system-ui, -apple-system, blinkmacsystemfont, "Segoe UI",
   roboto, "Helvetica Neue", arial, sans-serif !default;
 $mono-font-family: "SFMono-Regular", menlo, consolas, monospace !default;
-$root-font-size: 16px !default; // Base font-size for rems
+$root-font-size: 16px !default; // DEPRECATED: previously base font-size for rems
 $body-line-height: 1.4 !default;
 $content-line-height: 1.6 !default;
 $body-heading-line-height: 1.25 !default;
@@ -11,18 +11,18 @@ $body-heading-line-height: 1.25 !default;
 // Font size
 // `-sm` suffix is the size at the small (and above) media query
 
-$font-size-1: 9px !default;
-$font-size-1-sm: 10px !default;
-$font-size-2: 11px !default; // h4 - uppercased!, h6 not uppercased, text-small
-$font-size-3: 12px !default; // h5
-$font-size-4: 14px !default;
-$font-size-5: 16px !default; // h3
-$font-size-6: 18px !default; // h2
-$font-size-7: 24px !default;
-$font-size-8: 32px !default; // h1
-$font-size-9: 36px !default;
-$font-size-10: 42px !default;
-$font-size-10-sm: 48px !default;
+$font-size-1: 0.5625rem !default;
+$font-size-1-sm: 0.625rem !default;
+$font-size-2: 0.6875rem !default; // h4 - uppercased!, h6 not uppercased, text-small
+$font-size-3: 0.75rem !default; // h5
+$font-size-4: 0.875rem !default;
+$font-size-5: 1rem !default; // h3
+$font-size-6: 1.125rem !default; // h2
+$font-size-7: 1.5rem !default;
+$font-size-8: 2rem !default; // h1
+$font-size-9: 2.25rem !default;
+$font-size-10: 2.625rem !default;
+$font-size-10-sm: 3rem !default;
 
 // Colors
 
@@ -95,22 +95,22 @@ $border-color: $grey-lt-100 !default;
 
 $gutter-spacing: $sp-6 !default;
 $gutter-spacing-sm: $sp-4 !default;
-$nav-width: 264px !default;
-$nav-width-md: 248px !default;
+$nav-width: 16.5rem !default;
+$nav-width-md: 15.5rem !default;
 $nav-list-item-height: $sp-6 !default;
 $nav-list-item-height-sm: $sp-8 !default;
 $nav-list-expander-right: true;
-$content-width: 800px !default;
-$header-height: 60px !default;
+$content-width: 50rem !default;
+$header-height: 3.75rem !default;
 $search-results-width: $content-width - $nav-width !default;
 $transition-duration: 400ms;
 
 // Media queries in pixels
 
 $media-queries: (
-  xs: 320px,
-  sm: 500px,
+  xs: 20rem,
+  sm: 31.25rem,
   md: $content-width,
   lg: $content-width + $nav-width,
-  xl: 1400px,
+  xl: 87.5rem,
 ) !default;
diff --git a/_sass/support/mixins/_layout.scss b/_sass/support/mixins/_layout.scss
index 428dec6..a9b32ee 100644
--- a/_sass/support/mixins/_layout.scss
+++ b/_sass/support/mixins/_layout.scss
@@ -12,7 +12,7 @@
   // If the key exists in the map
   @if $value {
     // Prints a media query based on the value
-    @media (min-width: rem($value)) {
+    @media (min-width: $value) {
       @content;
     }
   } @else {
diff --git a/_sass/support/support.scss b/_sass/support/support.scss
index 8131a32..e800592 100644
--- a/_sass/support/support.scss
+++ b/_sass/support/support.scss
@@ -1,3 +1,2 @@
 @import "./variables";
-@import "./functions";
 @import "./mixins/mixins";
diff --git a/_sass/tables.scss b/_sass/tables.scss
index db8f9de..7bc08ba 100644
--- a/_sass/tables.scss
+++ b/_sass/tables.scss
@@ -21,7 +21,7 @@ th,
 td {
   @include fs-3;
 
-  min-width: 120px;
+  min-width: 7.5rem;
   padding: $sp-2 $sp-3;
   background-color: $table-background-color;
   border-bottom: $border rgba($border-color, 0.5);