Modify the CV heading, the headers, and section numbers for standalone CV.

cv.tex

@@ -1,6 +1,12 @@
 \newcommand{\cvsecrule}{\vspace{-3mm}{\color{Prune}\hrule}\medskip}
 
-\chapter[CV]{Sergiu Ivanov \enspace — \enspace CV}
+\ifentiredoc
+  \chapter[CV]{Sergiu Ivanov \enspace — \enspace CV}
+\else
+  \chapter*{Sergiu Ivanov \enspace — \enspace CV}
+  \fancyhead[OL,ER]{\textcolor{Prune}{\textsl{Sergiu \textsc{Ivanov}}}}
+  \counterwithout{section}{chapter}
+\fi
 
 \vspace{-7mm}
 
@@ -919,6 +925,11 @@ I carry out this work in collaboration with Damien \textsc{Regnault}.
   \end{tabularx}
 }
 
+\ifentiredoc
+\else
+  \counterwithin{section}{chapter}
+\fi
+
 %%% Local Variables:
 %%% TeX-engine: luatex
 %%% TeX-master: "hdr"