diff --git a/desktop/public/fonts/CashSans-Bold.woff2 b/desktop/public/fonts/CashSans-Bold.woff2
new file mode 100644
index 0000000000..88b3e47117
Binary files /dev/null and b/desktop/public/fonts/CashSans-Bold.woff2 differ
diff --git a/desktop/public/fonts/CashSans-Light.woff2 b/desktop/public/fonts/CashSans-Light.woff2
new file mode 100644
index 0000000000..132239a195
Binary files /dev/null and b/desktop/public/fonts/CashSans-Light.woff2 differ
diff --git a/desktop/public/fonts/CashSans-Medium.woff2 b/desktop/public/fonts/CashSans-Medium.woff2
new file mode 100644
index 0000000000..317ba94b2b
Binary files /dev/null and b/desktop/public/fonts/CashSans-Medium.woff2 differ
diff --git a/desktop/public/fonts/CashSans-Regular.woff2 b/desktop/public/fonts/CashSans-Regular.woff2
new file mode 100644
index 0000000000..68ca177444
Binary files /dev/null and b/desktop/public/fonts/CashSans-Regular.woff2 differ
diff --git a/desktop/public/fonts/CashSans-RegularItalic.woff2 b/desktop/public/fonts/CashSans-RegularItalic.woff2
new file mode 100644
index 0000000000..ea0cbda9be
Binary files /dev/null and b/desktop/public/fonts/CashSans-RegularItalic.woff2 differ
diff --git a/desktop/public/fonts/CashSans-Semibold.woff2 b/desktop/public/fonts/CashSans-Semibold.woff2
new file mode 100644
index 0000000000..81a0514ecc
Binary files /dev/null and b/desktop/public/fonts/CashSans-Semibold.woff2 differ
diff --git a/desktop/src/features/sidebar/ui/MoreUnreadButton.tsx b/desktop/src/features/sidebar/ui/MoreUnreadButton.tsx
index 5ebca7e47e..b59092b95d 100644
--- a/desktop/src/features/sidebar/ui/MoreUnreadButton.tsx
+++ b/desktop/src/features/sidebar/ui/MoreUnreadButton.tsx
@@ -3,7 +3,7 @@ import type * as React from "react";
 import { Button } from "@/shared/ui/button";
 
 const MORE_UNREAD_BUTTON_CLASS =
-  "h-7 min-h-7 gap-1.5 rounded-full border-0 bg-primary px-2.5 text-[11px] font-medium text-primary-foreground shadow-md hover:bg-primary/90 [&_svg]:size-3.5";
+  "h-7 min-h-7 gap-1.5 rounded-full border-0 bg-primary px-2.5 text-[11px] font-normal text-primary-foreground shadow-md hover:bg-primary/90 [&_svg]:size-3.5";
 
 export function MoreUnreadButton({
   bottomClassName = "bottom-0",
diff --git a/desktop/src/features/sidebar/ui/SidebarSection.tsx b/desktop/src/features/sidebar/ui/SidebarSection.tsx
index dc994f8227..802ac6d682 100644
--- a/desktop/src/features/sidebar/ui/SidebarSection.tsx
+++ b/desktop/src/features/sidebar/ui/SidebarSection.tsx
@@ -170,7 +170,7 @@ export function ChannelMenuButton({
       className={cn(
         !isActive &&
           hasUnread &&
-          "font-semibold text-sidebar-foreground hover:text-sidebar-foreground",
+          "text-sidebar-foreground hover:text-sidebar-foreground",
         !isActive && isMuted && !hasUnread && "opacity-50",
       )}
       data-channel-id={channel.id}
diff --git a/desktop/src/shared/styles/globals.css b/desktop/src/shared/styles/globals.css
index 0d637144cc..d876c74436 100644
--- a/desktop/src/shared/styles/globals.css
+++ b/desktop/src/shared/styles/globals.css
@@ -2,6 +2,54 @@
 @import "tw-animate-css";
 @config "../../../tailwind.config.js";
 
+@font-face {
+  font-family: "Cash Sans";
+  src: url("/fonts/CashSans-Regular.woff2") format("woff2");
+  font-weight: 400;
+  font-style: normal;
+  font-display: swap;
+}
+
+@font-face {
+  font-family: "Cash Sans";
+  src: url("/fonts/CashSans-RegularItalic.woff2") format("woff2");
+  font-weight: 400;
+  font-style: italic;
+  font-display: swap;
+}
+
+@font-face {
+  font-family: "Cash Sans";
+  src: url("/fonts/CashSans-Light.woff2") format("woff2");
+  font-weight: 300;
+  font-style: normal;
+  font-display: swap;
+}
+
+@font-face {
+  font-family: "Cash Sans";
+  src: url("/fonts/CashSans-Medium.woff2") format("woff2");
+  font-weight: 500;
+  font-style: normal;
+  font-display: swap;
+}
+
+@font-face {
+  font-family: "Cash Sans";
+  src: url("/fonts/CashSans-Semibold.woff2") format("woff2");
+  font-weight: 600;
+  font-style: normal;
+  font-display: swap;
+}
+
+@font-face {
+  font-family: "Cash Sans";
+  src: url("/fonts/CashSans-Bold.woff2") format("woff2");
+  font-weight: 700;
+  font-style: normal;
+  font-display: swap;
+}
+
 /* ── Tiptap rich-text composer ──────────────────────────────────────── */
 .rich-text-composer .tiptap {
   outline: none;
@@ -302,7 +350,19 @@
 
   body {
     @apply bg-background text-foreground antialiased;
-    font-family: "Geist", "Avenir Next", "Segoe UI", sans-serif;
+    font-family:
+      "Cash Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
+      Roboto, sans-serif;
+    font-feature-settings:
+      "rlig" 1,
+      "calt" 1;
+  }
+
+  input,
+  textarea,
+  select,
+  button {
+    font-family: inherit;
   }
 
   /*
diff --git a/desktop/src/shared/ui/sidebar.tsx b/desktop/src/shared/ui/sidebar.tsx
index 7e567ad048..9d6e6e0553 100644
--- a/desktop/src/shared/ui/sidebar.tsx
+++ b/desktop/src/shared/ui/sidebar.tsx
@@ -448,7 +448,7 @@ const SidebarGroupLabel = React.forwardRef<
       ref={ref}
       data-sidebar="group-label"
       className={cn(
-        "flex h-8 shrink-0 items-center rounded-md px-2 text-xs font-medium text-sidebar-foreground/70 outline-hidden ring-sidebar-ring transition-[margin,opacity] duration-200 ease-linear focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        "flex h-8 shrink-0 items-center rounded-md px-2 text-xs font-normal text-sidebar-foreground/70 outline-hidden ring-sidebar-ring transition-[margin,opacity] duration-200 ease-linear focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
         "group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0",
         className,
       )}
@@ -521,7 +521,7 @@ const SidebarMenuItem = React.forwardRef<
 SidebarMenuItem.displayName = "SidebarMenuItem";
 
 const sidebarMenuButtonVariants = cva(
-  "peer/menu-button flex w-full items-center gap-2 overflow-hidden rounded-md p-2 text-left text-sm outline-hidden ring-sidebar-ring transition-[width,height,padding] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 group-has-[[data-sidebar=menu-action]]/menu-item:pr-8 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[active=true]:bg-sidebar-primary data-[active=true]:font-semibold data-[active=true]:text-sidebar-primary-foreground data-[active=true]:shadow-xs data-[active=true]:hover:bg-sidebar-primary data-[active=true]:hover:text-sidebar-primary-foreground data-[state=open]:hover:bg-sidebar-accent data-[state=open]:hover:text-sidebar-accent-foreground group-data-[collapsible=icon]:!size-8 group-data-[collapsible=icon]:!p-2 [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0",
+  "peer/menu-button flex w-full items-center gap-2 overflow-hidden rounded-md p-2 text-left text-sm font-normal leading-normal outline-hidden ring-sidebar-ring transition-[width,height,padding] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 group-has-[[data-sidebar=menu-action]]/menu-item:pr-8 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[active=true]:bg-sidebar-primary data-[active=true]:font-normal data-[active=true]:text-sidebar-primary-foreground data-[active=true]:shadow-xs data-[active=true]:hover:bg-sidebar-primary data-[active=true]:hover:text-sidebar-primary-foreground data-[state=open]:hover:bg-sidebar-accent data-[state=open]:hover:text-sidebar-accent-foreground group-data-[collapsible=icon]:!size-8 group-data-[collapsible=icon]:!p-2 [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0",
   {
     variants: {
       variant: {
@@ -640,7 +640,7 @@ const SidebarMenuBadge = React.forwardRef<
     ref={ref}
     data-sidebar="menu-badge"
     className={cn(
-      "pointer-events-none absolute right-1 flex h-5 min-w-5 select-none items-center justify-center rounded-md px-1 text-xs font-medium tabular-nums text-sidebar-foreground",
+      "pointer-events-none absolute right-1 flex h-5 min-w-5 select-none items-center justify-center rounded-md px-1 text-xs font-normal tabular-nums text-sidebar-foreground",
       "peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[active=true]/menu-button:text-sidebar-primary-foreground",
       "peer-data-[size=sm]/menu-button:top-1",
       "peer-data-[size=default]/menu-button:top-1.5",
@@ -732,7 +732,7 @@ const SidebarMenuSubButton = React.forwardRef<
       data-active={isActive}
       className={cn(
         "flex h-7 min-w-0 items-center gap-2 overflow-hidden rounded-md px-2 text-sidebar-foreground outline-hidden ring-sidebar-ring hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground data-[active=true]:[&>svg]:text-sidebar-primary-foreground",
-        "data-[active=true]:bg-sidebar-primary data-[active=true]:font-semibold data-[active=true]:text-sidebar-primary-foreground data-[active=true]:hover:bg-sidebar-primary data-[active=true]:hover:text-sidebar-primary-foreground",
+        "data-[active=true]:bg-sidebar-primary data-[active=true]:font-normal data-[active=true]:text-sidebar-primary-foreground data-[active=true]:hover:bg-sidebar-primary data-[active=true]:hover:text-sidebar-primary-foreground",
         size === "sm" && "text-xs",
         size === "md" && "text-sm",
         "group-data-[collapsible=icon]:hidden",