add better error handling w/ loading icon support

styles.css

@@ -5,6 +5,45 @@
     font-style: normal;
 }
 
+.loading-overlay {
+  position: fixed;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  background-color: rgba(0,0,0,0.8);
+  border: 3px solid white;
+  border-radius: 12px;
+  padding: 20px 24px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  z-index: 9999;
+  user-select: none;
+  pointer-events: none;
+  width: 200px;    /* Updated width */
+  height: 250px;   /* Updated height */
+  box-sizing: border-box;
+}
+
+#loading-canvas {
+  image-rendering: pixelated;
+  /* Make sure canvas doesn't get resized by CSS */
+  width: 100px;
+  height: 100px;
+  display: block;
+  margin: 0 auto; /* center horizontally */
+}
+
+#loading-text {
+  margin-top: 12px;
+  color: white;
+  font-family: "Splatoon1", sans-serif;
+  font-size: 20px;
+  letter-spacing: 1.2px;
+  text-align: center;
+}
+
 html, body {
     margin: 0;
     padding: 0;
@@ -93,3 +132,10 @@ body {
     display: block;
     border-radius: 8px;
 }
+
+.error-message {
+    color: white;
+    font-family: "Splatoon1", sans-serif;
+    text-align: center;
+    margin-top: 40px;
+}