\documentclass{article}
\usepackage[a4paper, margin=1in]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{graphicx}
\usepackage{url}
\usepackage{array}
\usepackage{hyperref}
\usepackage[table,dvipsnames]{xcolor}
\usepackage{afterpage}
\usepackage{fix-cm}
\usepackage{lipsum}
\usepackage{sectsty}
\usepackage[export]{adjustbox}
\definecolor{FSBlue}{HTML}{13284c}
\definecolor{FSRed}{RGB}{177, 16, 44}
\usepackage{newtxmath}
\sectionfont{\color{FSRed}}
\subsectionfont{\color{FSBlue}}
\begin{document}
\input{title}
\input{sections/intro}
\input{sections/methods}
\input{sections/results}
\input{sections/conclusion}
\end{document}