update css and pandoc options

.github/workflows/release-docs.yml

@@ -35,9 +35,13 @@ jobs:
             pandoc "src/${doc}.md" \
               --toc \
               --standalone \
+              --number-sections  \
+              --toc-depth=2 \
+              --lua-filter src/shift-numbering.lua\
+              --metadata-file src/metadata.yml \
               --embed-resources \
               --metadata title="CMBA ${doc}" \
-              --css src/style.css \
+              --css src/style.css \ 
               -o "dist/${doc}.html"
 
             # PDF

src/style.css

@@ -5,6 +5,8 @@
    - headings with ids/classes like .unnumbered
 */
 
+@import url("https://fonts.googleapis.com/css2?family=Merriweather:ital,wght@0,400;0,700;1,400;1,700&display=swap");
+
 :root{
   --bg: #ffffff;
   --fg: #111827;         /* slate-900 */
@@ -27,7 +29,16 @@ body{
   margin: 0;
   background: var(--bg);
   color: var(--fg);
-  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
+
+  /* Rulebook serif stack */
+  font-family:
+    "Merriweather",
+    "Georgia",
+    "Times New Roman",
+    Times,
+    "Liberation Serif",
+    serif;
+
   line-height: 1.6;
   font-size: 16px;
   text-rendering: optimizeLegibility;