% More dense geometry
\usepackage[margin=2.5cm, top=2.5cm, bottom=2.5cm]{geometry}

% More dense title
\usepackage{titling}
\pretitle{\begin{center}\vspace{-2cm}\LARGE\bfseries}
\posttitle{\end{center}\vspace{-0cm}}

% Enable emojis
\directlua{luaotfload.add_fallback
  ( "fallbacks",
    {
      "NotoColorEmoji:mode=harf;"
    }
  )
}
\setmainfont{DejaVuSerif}[
  RawFeature={fallback=fallbacks}
]

% Add colored boxes
\usepackage{tcolorbox}
\newtcolorbox{important}{colback=red!5!white, colframe=red!50!white, title={Important}, fonttitle=\bfseries, arc=0mm}
\newtcolorbox{attention}{colback=orange!5!white, colframe=orange!70!white, title={Attention}, fonttitle=\bfseries, arc=0mm}
\newtcolorbox{information}{colback=blue!5!white, colframe=blue!50!black, title={Information}, fonttitle=\bfseries, arc=0mm}
\newtcolorbox{problem}{colback=green!5!white, colframe=green!50!black, title={Problème}, fonttitle=\bfseries, arc=0mm}
\newtcolorbox{solution}{colback=green!5!white, colframe=green!50!black, title={Solution}, fonttitle=\bfseries, arc=0mm}
\newenvironment{quote_important}{\begin{important}}{\end{important}}
\newenvironment{quote_attention}{\begin{attention}}{\end{attention}}
\newenvironment{quote_information}{\begin{information}}{\end{information}}
\newenvironment{quote_problem}{\begin{problem}}{\end{problem}}
\newenvironment{quote_solution}{\begin{solution}}{\end{solution}}