diff --git a/frontend/public/favicon-default.ico b/frontend/public/favicon-default.ico
new file mode 100644
index 0000000..9fda6e6
Binary files /dev/null and b/frontend/public/favicon-default.ico differ
diff --git a/frontend/public/favicon.svg b/frontend/public/favicon.svg
index f157bd1..22e13e5 100644
--- a/frontend/public/favicon.svg
+++ b/frontend/public/favicon.svg
@@ -1,9 +1,48 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 128 128">
-    <path d="M50.4 78.5a75.1 75.1 0 0 0-28.5 6.9l24.2-65.7c.7-2 1.9-3.2 3.4-3.2h29c1.5 0 2.7 1.2 3.4 3.2l24.2 65.7s-11.6-7-28.5-7L67 45.5c-.4-1.7-1.6-2.8-2.9-2.8-1.3 0-2.5 1.1-2.9 2.7L50.4 78.5Zm-1.1 28.2Zm-4.2-20.2c-2 6.6-.6 15.8 4.2 20.2a17.5 17.5 0 0 1 .2-.7 5.5 5.5 0 0 1 5.7-4.5c2.8.1 4.3 1.5 4.7 4.7.2 1.1.2 2.3.2 3.5v.4c0 2.7.7 5.2 2.2 7.4a13 13 0 0 0 5.7 4.9v-.3l-.2-.3c-1.8-5.6-.5-9.5 4.4-12.8l1.5-1a73 73 0 0 0 3.2-2.2 16 16 0 0 0 6.8-11.4c.3-2 .1-4-.6-6l-.8.6-1.6 1a37 37 0 0 1-22.4 2.7c-5-.7-9.7-2-13.2-6.2Z" />
-    <style>
-        path { fill: #000; }
-        @media (prefers-color-scheme: dark) {
-            path { fill: #FFF; }
-        }
-    </style>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128" fill="none">
+  <defs>
+    <linearGradient id="bg" x1="18" y1="10" x2="110" y2="118" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#132334" />
+      <stop offset="1" stop-color="#081019" />
+    </linearGradient>
+    <linearGradient id="toolbar" x1="20" y1="18" x2="108" y2="40" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#24384B" />
+      <stop offset="1" stop-color="#162633" />
+    </linearGradient>
+    <linearGradient id="prompt" x1="40" y1="44" x2="92" y2="92" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#9AF7E3" />
+      <stop offset="1" stop-color="#48CFFF" />
+    </linearGradient>
+    <filter id="glow" x="18" y="28" width="92" height="78" filterUnits="userSpaceOnUse">
+      <feGaussianBlur stdDeviation="5" result="blur" />
+      <feMerge>
+        <feMergeNode in="blur" />
+        <feMergeNode in="SourceGraphic" />
+      </feMerge>
+    </filter>
+  </defs>
+
+  <rect x="10" y="10" width="108" height="108" rx="28" fill="url(#bg)" />
+  <rect x="11.5" y="11.5" width="105" height="105" rx="26.5" stroke="#5FE1FF" stroke-opacity=".18" stroke-width="3" />
+  <path d="M10 38c0-15.464 12.536-28 28-28h52c15.464 0 28 12.536 28 28v2H10v-2Z" fill="url(#toolbar)" />
+
+  <circle cx="28" cy="26" r="5.5" fill="#FF6B6B" />
+  <circle cx="44" cy="26" r="5.5" fill="#FFD166" />
+  <circle cx="60" cy="26" r="5.5" fill="#57D68D" />
+
+  <g filter="url(#glow)">
+    <path
+      d="M37 50 65 64 37 78 31 71.5 48.5 64 31 56.5 37 50Z"
+      fill="url(#prompt)"
+    />
+    <rect x="69" y="74" width="26" height="8.5" rx="4.25" fill="url(#prompt)" />
+  </g>
+
+  <path
+    d="M86 18h17c4.418 0 8 3.582 8 8v17l-25-25Z"
+    fill="#1DE9B6"
+    fill-opacity=".16"
+  />
+  <circle cx="99" cy="29" r="8" fill="#0B1621" stroke="#1DE9B6" stroke-width="2.5" />
+  <path d="M96 29h6" stroke="#1DE9B6" stroke-linecap="round" stroke-width="2.75" />
+  <path d="M99 26v6" stroke="#1DE9B6" stroke-linecap="round" stroke-width="2.75" />
 </svg>
diff --git a/frontend/src/pages/favicon.ico.ts b/frontend/src/pages/favicon.ico.ts
index fba62f8..89487fb 100644
--- a/frontend/src/pages/favicon.ico.ts
+++ b/frontend/src/pages/favicon.ico.ts
@@ -3,7 +3,7 @@ import type { APIRoute } from 'astro'
 import { createApiClient, DEFAULT_SITE_SETTINGS } from '../lib/api/client'
 
 function resolveFaviconTarget(requestUrl: URL, configured: string | undefined) {
-  const fallbackTarget = '/favicon.svg'
+  const fallbackTarget = '/favicon-default.ico'
   const candidate = configured?.trim()
 
   if (!candidate) {