diff --git a/src/features/flights-map/components/FlightsMapStartPage.scss b/src/features/flights-map/components/FlightsMapStartPage.scss
index be3668f1..3a486b30 100644
--- a/src/features/flights-map/components/FlightsMapStartPage.scss
+++ b/src/features/flights-map/components/FlightsMapStartPage.scss
@@ -346,7 +346,7 @@
   font-family: 'Inter', 'Roboto', Arial, sans-serif;
   color: colors.$text-color;
   font-size: 12px;
-  font-weight: 500;
+  font-weight: fonts.$font-medium;
   letter-spacing: 1px;
   text-shadow:
     -1px 0 rgba(255, 255, 255, 0.53),
diff --git a/src/features/online-board/components/FlightSchedule/FlightSchedule.scss b/src/features/online-board/components/FlightSchedule/FlightSchedule.scss
index f3485e18..55e43961 100644
--- a/src/features/online-board/components/FlightSchedule/FlightSchedule.scss
+++ b/src/features/online-board/components/FlightSchedule/FlightSchedule.scss
@@ -67,7 +67,7 @@
 
     &--duration {
       font-size: 16px;
-      font-weight: 500;
+      font-weight: fonts.$font-medium;
       color: colors.$text-color;
     }
   }
diff --git a/src/features/online-board/components/FullRouteTimeline/FullRouteTimeline.scss b/src/features/online-board/components/FullRouteTimeline/FullRouteTimeline.scss
index f684649f..531ac96f 100644
--- a/src/features/online-board/components/FullRouteTimeline/FullRouteTimeline.scss
+++ b/src/features/online-board/components/FullRouteTimeline/FullRouteTimeline.scss
@@ -45,7 +45,7 @@
 
     &--times {
       font-size: 18px;
-      font-weight: 500;
+      font-weight: fonts.$font-medium;
       color: colors.$blue-dark;
     }
     &--stations {
@@ -97,7 +97,7 @@
   &--right { align-items: flex-end; text-align: right; }
   &--center { align-items: center; text-align: center; }
 
-  &__city { font-size: 14px; font-weight: 500; color: colors.$blue-dark; }
+  &__city { font-size: 14px; font-weight: fonts.$font-medium; color: colors.$blue-dark; }
   &__code { font-size: 12px; color: colors.$light-gray; }
   &__terminal { font-size: 11px; color: colors.$light-gray; }
 
@@ -112,5 +112,5 @@
 
   &__arrow { color: colors.$blue; }
   &__city { font-size: 12px; color: colors.$light-gray; }
-  &__code { font-size: 14px; font-weight: 500; color: colors.$blue-dark; }
+  &__code { font-size: 14px; font-weight: fonts.$font-medium; color: colors.$blue-dark; }
 }
diff --git a/src/features/online-board/components/OnlineBoardDetailsPage.scss b/src/features/online-board/components/OnlineBoardDetailsPage.scss
index 3ccdcb58..071a6d2b 100644
--- a/src/features/online-board/components/OnlineBoardDetailsPage.scss
+++ b/src/features/online-board/components/OnlineBoardDetailsPage.scss
@@ -34,7 +34,7 @@
   // slot underneath renders at 12px in the brand orange.
   &__time {
     font-size: 20px;
-    font-weight: 500;
+    font-weight: fonts.$font-medium;
     color: colors.$blue-dark;
     line-height: 1.1;
 
@@ -81,7 +81,7 @@
 
   &__status-text {
     font-size: 14px;
-    font-weight: 500;
+    font-weight: fonts.$font-medium;
     color: colors.$blue;
   }
 
diff --git a/src/features/online-board/components/details-panels/FlightDetailsAccordion.scss b/src/features/online-board/components/details-panels/FlightDetailsAccordion.scss
index 2d97c719..016d3a62 100644
--- a/src/features/online-board/components/details-panels/FlightDetailsAccordion.scss
+++ b/src/features/online-board/components/details-panels/FlightDetailsAccordion.scss
@@ -116,7 +116,7 @@
   // and uses Aeroflot red (#C8102E) for the 'Finished' state.
   &__status {
     font-size: 16px;
-    font-weight: 500;
+    font-weight: fonts.$font-medium;
 
     &--scheduled {
       color: colors.$light-gray;
diff --git a/src/features/online-board/components/details-panels/panels.scss b/src/features/online-board/components/details-panels/panels.scss
index a314c579..5079adcd 100644
--- a/src/features/online-board/components/details-panels/panels.scss
+++ b/src/features/online-board/components/details-panels/panels.scss
@@ -37,7 +37,7 @@
 
 .details-panel__value {
   color: colors.$blue-dark;
-  font-weight: 500;
+  font-weight: fonts.$font-medium;
 }
 
 .details-panel__status {
@@ -91,7 +91,7 @@
   // but not bold.
   &__value {
     font-size: 16px;
-    font-weight: 500;
+    font-weight: fonts.$font-medium;
     color: colors.$text-color;
   }
 
diff --git a/src/features/schedule/components/ScheduleStartPage.scss b/src/features/schedule/components/ScheduleStartPage.scss
index 70e81d62..a038dc40 100644
--- a/src/features/schedule/components/ScheduleStartPage.scss
+++ b/src/features/schedule/components/ScheduleStartPage.scss
@@ -136,7 +136,7 @@
     gap: vars.$space-s;
 
     label {
-      font-weight: 500;
+      font-weight: fonts.$font-medium;
       @include fonts.font-small(colors.$gray);
       margin-bottom: vars.$label-margin-bottom;
     }
diff --git a/src/ui/flights/FlightCard.scss b/src/ui/flights/FlightCard.scss
index 3ae07e4c..cf9b91e1 100644
--- a/src/ui/flights/FlightCard.scss
+++ b/src/ui/flights/FlightCard.scss
@@ -191,7 +191,7 @@
   }
 
   &__detail-value {
-    font-weight: 500;
+    font-weight: fonts.$font-medium;
     color: colors.$text-color;
     font-size: 14px;
   }
@@ -263,7 +263,7 @@
     border-radius: vars.$border-radius;
     padding: 9px 22px;
     font-size: 14px;
-    font-weight: 500;
+    font-weight: fonts.$font-medium;
     cursor: pointer;
     text-decoration: none;
     transition: background-color 150ms ease;
@@ -278,7 +278,7 @@
     border-radius: vars.$border-radius;
     padding: 10px 24px;
     font-size: 14px;
-    font-weight: 500;
+    font-weight: fonts.$font-medium;
     cursor: pointer;
     text-decoration: none;
     transition: background-color 150ms ease;
@@ -293,7 +293,7 @@
     border-radius: vars.$border-radius;
     padding: 10px 24px;
     font-size: 14px;
-    font-weight: 500;
+    font-weight: fonts.$font-medium;
     cursor: pointer;
     transition: background-color 150ms ease;