Fix math equation rendering issues

docs/assets/css/unicado.css

@@ -37,6 +37,21 @@
   font-size: 1.1em;
 }
 
+/* Make all LaTeX-style math equations white */
+:root {
+  --math-color: #ffffff; /* Set the default color for equations */
+}
+
+/* MathJax equations */
+.MathJax, mjx-container, math {
+  color: var(--math-color) !important;
+}
+
+/* KaTeX equations */
+.katex, .katex-display {
+  color: var(--math-color) !important;
+}
+
 /* Download button styling */
 .download-button-container {
   text-align: center;