diff --git a/README.md b/README.md
index b228dd1..c81f624 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,10 @@
-# 🐝 Hive
+<p align="center">
+  <img src="public/logo-light.png" alt="Hive" width="120" />
+</p>
 
-Agent communication platform by [Big Informatics](https://biginformatics.net). Hive gives AI agents (and humans) a unified place to coordinate — chat, messages, tasks, notebooks, and a prioritized wake queue that replaces ad-hoc polling.
+# Hive
+
+Agent communication platform by the [Big Informatics Team](https://biginformatics.com). Hive gives AI agents (and humans) a unified place to coordinate — chat, messages, tasks, notebooks, and a prioritized wake queue that replaces ad-hoc polling.
 
 ## Features
 
diff --git a/public/favicon.ico b/public/favicon.ico
index a11777c..b26a371 100644
Binary files a/public/favicon.ico and b/public/favicon.ico differ
diff --git a/public/icon.png b/public/icon.png
index cf8c704..126301c 100644
Binary files a/public/icon.png and b/public/icon.png differ
diff --git a/public/logo-dark.png b/public/logo-dark.png
new file mode 100644
index 0000000..ce33f9a
Binary files /dev/null and b/public/logo-dark.png differ
diff --git a/public/logo-light.png b/public/logo-light.png
new file mode 100644
index 0000000..7a53250
Binary files /dev/null and b/public/logo-light.png differ
diff --git a/public/logo192.png b/public/logo192.png
index cf8c704..882f0a9 100644
Binary files a/public/logo192.png and b/public/logo192.png differ
diff --git a/public/logo512.png b/public/logo512.png
index cf8c704..ae276ac 100644
Binary files a/public/logo512.png and b/public/logo512.png differ
diff --git a/public/manifest.json b/public/manifest.json
index 1218900..1c50284 100644
--- a/public/manifest.json
+++ b/public/manifest.json
@@ -7,21 +7,17 @@
   "background_color": "#09090b",
   "theme_color": "#09090b",
   "icons": [
-    {
-      "src": "/icon.svg",
-      "sizes": "any",
-      "type": "image/svg+xml",
-      "purpose": "any maskable"
-    },
     {
       "src": "/logo192.png",
       "type": "image/png",
-      "sizes": "192x192"
+      "sizes": "192x192",
+      "purpose": "any maskable"
     },
     {
       "src": "/logo512.png",
       "type": "image/png",
-      "sizes": "512x512"
+      "sizes": "512x512",
+      "purpose": "any maskable"
     }
   ]
 }
diff --git a/src/components/login-gate.tsx b/src/components/login-gate.tsx
index f9e7b11..e6c87e6 100644
--- a/src/components/login-gate.tsx
+++ b/src/components/login-gate.tsx
@@ -1,6 +1,6 @@
 import { useState } from "react";
 import { Button } from "@/components/ui/button";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Card, CardContent, CardHeader } from "@/components/ui/card";
 import { Input } from "@/components/ui/input";
 import { setMailboxKey } from "@/lib/api";
 
@@ -41,7 +41,18 @@ export function LoginGate({ onLogin }: { onLogin: () => void }) {
     <div className="flex min-h-screen items-center justify-center bg-background">
       <Card className="w-full max-w-sm">
         <CardHeader className="text-center">
-          <CardTitle className="text-2xl font-bold">🐝 Hive</CardTitle>
+          <div className="flex justify-center mb-2">
+            <img
+              src="/logo-light.png"
+              alt="Hive"
+              className="h-12 w-auto dark:hidden"
+            />
+            <img
+              src="/logo-dark.png"
+              alt="Hive"
+              className="h-12 w-auto hidden dark:block"
+            />
+          </div>
           <p className="text-sm text-muted-foreground">
             Enter your mailbox key to continue
           </p>
diff --git a/src/components/nav.tsx b/src/components/nav.tsx
index 7d62508..0f532c3 100644
--- a/src/components/nav.tsx
+++ b/src/components/nav.tsx
@@ -131,7 +131,16 @@ export function Nav({ onLogout }: { onLogout: () => void }) {
       {/* Desktop / iPad header */}
       <header className="hidden md:flex items-center justify-between border-b px-4 py-3">
         <div className="flex items-center gap-4">
-          <h1 className="text-xl font-bold">🐝 Hive</h1>
+          <img
+            src="/logo-light.png"
+            alt="Hive"
+            className="h-8 w-auto dark:hidden"
+          />
+          <img
+            src="/logo-dark.png"
+            alt="Hive"
+            className="h-8 w-auto hidden dark:block"
+          />
           <nav className="flex gap-1">
             {navItems.map((item) => {
               const isActive =
@@ -172,7 +181,16 @@ export function Nav({ onLogout }: { onLogout: () => void }) {
 
       {/* Mobile header — minimal */}
       <header className="flex md:hidden items-center justify-between border-b px-3 py-2">
-        <h1 className="text-lg font-bold">🐝 Hive</h1>
+        <img
+          src="/logo-light.png"
+          alt="Hive"
+          className="h-7 w-auto dark:hidden"
+        />
+        <img
+          src="/logo-dark.png"
+          alt="Hive"
+          className="h-7 w-auto hidden dark:block"
+        />
         <div className="flex items-center gap-1">
           <ThemeToggle />
           <Button