Improve RFC quiz guidance fallbacks

Author: thinksyncs

education/quiz_template_skeleton.css

@@ -0,0 +1,27 @@
+.question-guide{
+  margin:0;
+  padding:12px 14px;
+  border:1px solid rgba(78,161,255,0.24);
+  border-radius:12px;
+  background:linear-gradient(180deg, rgba(78,161,255,0.08), rgba(255,255,255,0.02));
+  color:var(--muted);
+  line-height:1.65;
+}
+
+.question-guide strong{
+  color:var(--fg);
+}
+
+.question-guide code{
+  font-size:.94em;
+}
+
+body[data-theme="light"] .question-guide{
+  border-color:#bfd3ea;
+  background:#f4f9ff;
+  color:var(--text-muted-light);
+}
+
+body[data-theme="light"] .question-guide strong{
+  color:var(--text-light);
+}