updates on the astryx desing

src/globalPolish.css

@@ -0,0 +1,41 @@
+/* Global visual polish that used to come from MUI's <CssBaseline>/<GlobalStyles>
+   in themes/index.js (ThemeCustomization). Kept as plain CSS now that every
+   page runs on Astryx — see root CLAUDE.md §6.6. Astryx's own reset
+   (@astryxdesign/core/reset.css, imported in index.js) covers the base
+   element resets; this file only carries the two enterprise-polish touches
+   that reset doesn't: crisp font rendering and a thin, unobtrusive scrollbar. */
+
+body {
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  text-rendering: optimizeLegibility;
+}
+
+* {
+  scrollbar-width: thin; /* Firefox */
+  scrollbar-color: rgba(0, 0, 0, 0.28) transparent;
+}
+
+*::-webkit-scrollbar {
+  width: 10px;
+  height: 10px;
+}
+
+*::-webkit-scrollbar-track {
+  background-color: transparent;
+}
+
+*::-webkit-scrollbar-thumb {
+  background-color: rgba(0, 0, 0, 0.26);
+  border-radius: 8px;
+  border: 2px solid transparent;
+  background-clip: padding-box;
+}
+
+*::-webkit-scrollbar-thumb:hover {
+  background-color: rgba(0, 0, 0, 0.45);
+}
+
+*::-webkit-scrollbar-corner {
+  background-color: transparent;
+}