\usepackage{fancyvrb,newverbs}
\usepackage[top=2cm, bottom=1.5cm, left=2cm, right=2cm]{geometry}

\PassOptionsToPackage{dvipsnames,svgnames,x11names}{xcolor}
\usepackage{hyperref}

% begin a new page for each section (first level header),
% we need to combine this with `-V subparagraph` when invoking pandc
% \usepackage{titlesec}
% \newcommand{\sectionbreak}{\clearpage}

% change background color for inline code in markdown files.
% The following code does not work well for long text, because the text will exceed the page boundary.
\definecolor{bgcolor}{HTML}{DADADA}
\let\oldtexttt\texttt

\renewcommand{\texttt}[1]{
  \colorbox{bgcolor}{\oldtexttt{#1}}
}

% change style of quote, see also https://tex.stackexchange.com/a/436253/114857
\usepackage[most]{tcolorbox}

\definecolor{linequote}{RGB}{224,215,188}
\definecolor{backquote}{RGB}{249,245,233}
\definecolor{bordercolor}{RGB}{221,221,221}

% change left border: https://tex.stackexchange.com/a/475716/114857
% change left margin: https://tex.stackexchange.com/a/457936/114857
\newtcolorbox{myquote}[1][]{%
    enhanced,
    breakable,
    size=minimal,
    left=10pt,
    top=5pt,
    bottom=5pt,
    frame hidden,
    boxrule=0pt,
    sharp corners=all,
    colback=backquote,
    borderline west={2pt}{0pt}{bordercolor},
    #1
}

% redefine quote environment to use the myquote environment, see https://tex.stackexchange.com/a/337587/114857
\renewenvironment{quote}{\begin{myquote}}{\end{myquote}}

% start a new page after toc, we need to save the old command before defining
% new one to avoid recursive command calls,
% see https://tex.stackexchange.com/questions/47351/can-i-redefine-a-command-to-contain-itself
\let\oldtoc\tableofcontents
\renewcommand{\tableofcontents}{\oldtoc\newpage}

% fix header level issue
\usepackage{enumitem}
\setlistdepth{9}

\setlist[itemize,1]{label=$\bullet$}
\setlist[itemize,2]{label=$\bullet$}
\setlist[itemize,3]{label=$\bullet$}
\setlist[itemize,4]{label=$\bullet$}
\setlist[itemize,5]{label=$\bullet$}
\setlist[itemize,6]{label=$\bullet$}
\setlist[itemize,7]{label=$\bullet$}
\setlist[itemize,8]{label=$\bullet$}
\setlist[itemize,9]{label=$\bullet$}
\renewlist{itemize}{itemize}{9}

\setlist[enumerate,1]{label=$\arabic*.$}
\setlist[enumerate,2]{label=$\alph*.$}
\setlist[enumerate,3]{label=$\roman*.$}
\setlist[enumerate,4]{label=$\arabic*.$}
\setlist[enumerate,5]{label=$\alpha*$}
\setlist[enumerate,6]{label=$\roman*.$}
\setlist[enumerate,7]{label=$\arabic*.$}
\setlist[enumerate,8]{label=$\alph*.$}
\setlist[enumerate,9]{label=$\roman*.$}
\renewlist{enumerate}{enumerate}{9}