diff --git a/src/pages/tools/index.astro b/src/pages/tools/index.astro
index e554d78..49e0e09 100644
--- a/src/pages/tools/index.astro
+++ b/src/pages/tools/index.astro
@@ -69,47 +69,6 @@ const tools = [
         </p>
       </section>
 
-      <nav aria-label="Tool categories" class="mb-8">
-        <ul class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-4 list-none p-0">
-          <li>
-            <a href="/tools/measurement" class="block p-4 rounded-lg border border-slate-200 hover:border-sky-400 hover:bg-sky-50 transition-colors">
-              <span class="font-semibold text-slate-900">Measurement &amp; Calculation</span>
-              <span class="block text-sm text-slate-600 mt-1">SG, RI, birefringence, critical angle, carat estimator, Hanneman shortcut</span>
-            </a>
-          </li>
-          <li>
-            <a href="/tools/optical" class="block p-4 rounded-lg border border-slate-200 hover:border-sky-400 hover:bg-sky-50 transition-colors">
-              <span class="font-semibold text-slate-900">Optical Properties</span>
-              <span class="block text-sm text-slate-600 mt-1">Dichroscope, polariscope, refractometer simulator, pleochroism reasoner, optic sign</span>
-            </a>
-          </li>
-          <li>
-            <a href="/tools/lab" class="block p-4 rounded-lg border border-slate-200 hover:border-sky-400 hover:bg-sky-50 transition-colors">
-              <span class="font-semibold text-slate-900">Lab Equipment</span>
-              <span class="block text-sm text-slate-600 mt-1">Spectroscope calculator, band-matcher, UV fluorescence lookup</span>
-            </a>
-          </li>
-          <li>
-            <a href="/tools/identification" class="block p-4 rounded-lg border border-slate-200 hover:border-sky-400 hover:bg-sky-50 transition-colors">
-              <span class="font-semibold text-slate-900">Gem Identification</span>
-              <span class="block text-sm text-slate-600 mt-1">Filtered database query across 96 mineral families</span>
-            </a>
-          </li>
-          <li>
-            <a href="/tools/advanced" class="block p-4 rounded-lg border border-slate-200 hover:border-sky-400 hover:bg-sky-50 transition-colors">
-              <span class="font-semibold text-slate-900">Advanced Analysis</span>
-              <span class="block text-sm text-slate-600 mt-1">Treatment detection, treatment wizard, proportion analyzer with GIA cut grades</span>
-            </a>
-          </li>
-          <li>
-            <a href="/tools/conversions" class="block p-4 rounded-lg border border-slate-200 hover:border-sky-400 hover:bg-sky-50 transition-colors">
-              <span class="font-semibold text-slate-900">Unit Conversions</span>
-              <span class="block text-sm text-slate-600 mt-1">Weight, length, and temperature converters for gemmological use</span>
-            </a>
-          </li>
-        </ul>
-      </nav>
-
       <ToolsHub client:load />
     </div>
   </div>