diff --git a/app/javascript/flavours/glitch/styles/basics.scss b/app/javascript/flavours/glitch/styles/basics.scss
index a00b2936f..340294d73 100644
--- a/app/javascript/flavours/glitch/styles/basics.scss
+++ b/app/javascript/flavours/glitch/styles/basics.scss
@@ -18,21 +18,6 @@ body {
   -webkit-tap-highlight-color: rgba(0,0,0,0);
   -webkit-tap-highlight-color: transparent;
 
-  &.system-font {
-    // system-ui => standard property (Chrome/Android WebView 56+, Opera 43+, Safari 11+)
-    // -apple-system => Safari <11 specific
-    // BlinkMacSystemFont => Chrome <56 on macOS specific
-    // Segoe UI => Windows 7/8/10
-    // Oxygen => KDE
-    // Ubuntu => Unity/Ubuntu
-    // Cantarell => GNOME
-    // Fira Sans => Firefox OS
-    // Droid Sans => Older Androids (<4.0)
-    // Helvetica Neue => Older macOS <10.11
-    // $font-sans-serif => web-font (Roboto) fallback and newer Androids (>=4.0)
-    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", $font-sans-serif, sans-serif;
-  }
-
   &.app-body {
     padding: 0;
 
diff --git a/app/javascript/flavours/glitch/styles/components/modal.scss b/app/javascript/flavours/glitch/styles/components/modal.scss
index 8ba8bec10..e5db3303f 100644
--- a/app/javascript/flavours/glitch/styles/components/modal.scss
+++ b/app/javascript/flavours/glitch/styles/components/modal.scss
@@ -1131,7 +1131,7 @@
       width: 100%;
       border: 0;
       padding: 10px;
-      font-family: 'mastodon-font-monospace', monospace;
+      font-family: $font-monospace, monospace;
       background: $ui-base-color;
       color: $primary-text-color;
       font-size: 14px;
diff --git a/app/javascript/flavours/glitch/styles/index.scss b/app/javascript/flavours/glitch/styles/index.scss
index fbb02c788..3946684ed 100644
--- a/app/javascript/flavours/glitch/styles/index.scss
+++ b/app/javascript/flavours/glitch/styles/index.scss
@@ -1,7 +1,5 @@
 @import 'mixins';
 @import 'variables';
-@import 'styles/fonts/roboto';
-@import 'styles/fonts/roboto-mono';
 
 @import 'reset';
 @import 'basics';
diff --git a/app/javascript/flavours/glitch/styles/variables.scss b/app/javascript/flavours/glitch/styles/variables.scss
index b865b5a2d..3d05840fc 100644
--- a/app/javascript/flavours/glitch/styles/variables.scss
+++ b/app/javascript/flavours/glitch/styles/variables.scss
@@ -53,9 +53,9 @@ $media-modal-media-max-height: 80%;
 
 $no-gap-breakpoint: 1175px;
 
-$font-sans-serif: 'mastodon-font-sans-serif' !default;
-$font-display: 'mastodon-font-display' !default;
-$font-monospace: 'mastodon-font-monospace' !default;
+$font-sans-serif: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue" !default;
+$font-display: $font-sans-serif !default;
+$font-monospace: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono" !default;
 
 // Avatar border size (8% default, 100% for rounded avatars)
 $ui-avatar-border-size: 8%;