improving fonts / memory usage

index.html

@@ -24,8 +24,8 @@
     <link rel="stylesheet" href="css/matrix.css?v=20261012-1">
     <link rel="stylesheet" href="css/button.css">
     
-    <!-- Remix Icon CDN for social icons -->
-    <link href="https://cdn.jsdelivr.net/npm/remixicon@3.5.0/fonts/remixicon.css" rel="stylesheet">
+    <!-- Remix Icon subset (only the icons used on this page) -->
+    <link rel="stylesheet" href="css/icons.css">
 </head>
 <body>
     <canvas class="matrix-canvas" id="matrixCanvas"></canvas>