\documentclass[12pt]{article}

% ---------- Packages ----------
\usepackage[a4paper,margin=1in]{geometry}
\usepackage{setspace}
\usepackage{titlesec}
\usepackage{enumitem}

% ---------- Formatting ----------
\setstretch{1.1}
\setlength{\parskip}{0.5em}
\setlength{\parindent}{0pt}

% Section formatting
\titleformat{\section}{\large\bfseries}{\thesection.}{0.5em}{}
\titleformat{\subsection}{\normalsize\bfseries}{\thesubsection.}{0.5em}{}

% ---------- Document ----------
\begin{document}

% ---------- Title ----------
\begin{center}
    {\Large \textbf{Title of the Proposal}}\\[1em]
\end{center}

% ---------- Notes (not part of submission content) ----------
% - Maximum length: 2 pages total.
% - Font size: 12pt (already set).
% - Ensure clarity and conciseness due to strict page limit.
% - Submit as PDF to: auger-tna@auger.org

% ---------- Team ----------
\section{Team Composition}

\subsection{Principal Investigator (PI)}
\textbf{Name:} \\
\textbf{Nationality:} \\
\textbf{Home Institution:} \\

\textbf{Background:} \\
% Provide a detailed description of the PI's background, expertise, and relevant experience.

\subsection{Co-Investigators (Co-I) (Alphabetical Order)}

% Repeat this block for each Co-I, ensuring alphabetical order by last name.

\textbf{Name:} \\
\textbf{Nationality:} \\
\textbf{Home Institution:} \\

\textbf{Description:} \\
% Brief description of the Co-I‚Äôs background and role in the project.

\vspace{0.5em}

% (Copy the above block as needed for additional Co-Is)

% ---------- Expertise ----------
\section{Team expertise}
% Describe the combined expertise of the team, highlighting how it supports the proposal.
% Emphasize complementary skills, technical strengths, and relevant experience.


\end{document}
