\documentclass[11pt]{article} % 11pt font
% Conform to NSF formatting requirements
% see: https://www.nsf.gov/pubs/2020/nsf20587/nsf20587.pdf
% --------------------------------------
% 1in margins
\usepackage[margin=1in]{geometry}
% use times new roman for main text
\usepackage{fontspec}
\setmainfont{Times New Roman}
% use cambria for math
\usepackage{unicode-math}
\setmathfont{[Cambria-Math.ttf]}
% single line spacing
\usepackage{setspace}
\singlespacing
% To fit more into the proposal,
% let's make the section titles tiny and compact
\usepackage[tiny,compact]{titlesec}
\titleformat{\section}[runin]{\bfseries}{\thesection}{1em}{}
\titleformat{\subsection}[runin]{\bfseries}{\thesubsection}{1em}{}
% and let's compress the references too
\usepackage[numbers]{natbib}
\bibliographystyle{unsrtnat}
\renewcommand{\refname}{References \vspace{-0.6\baselineskip}} % no extra vert. space after title
\setlength{\bibsep}{0pt} % no extra vert. space between bib items
% Other packages
% --------------
% math packages
\usepackage{amsmath}
% microtype
\usepackage[final]{microtype}
% text colors
\usepackage{xcolor}
% my custom commands
% ------------------
% note command
\newcommand{\note}[1]{\textsf{\textcolor{red}{#1}}}
% multi-line comment command
\newcommand{\comment}[1]{}
% -------------------------
% BEGINNING OF THE DOCUMENT
% -------------------------
\begin{document}
\begin{center}
\large{\bf Title of the project}
\end{center}
\section*{Outline:}
\input{outline}
\section*{Motivation and Intellectual Merit:}
\input{intellectual-merit}
\section*{Research Plan}
\input{research-plan}
\section*{Broader Impacts}
\input{broader-impacts}
\bibliography{references.bib}
\end{document}
% -------------------------------------------------------------
% -------------------------------------------------------------
