\documentclass[12pt]{article}
\usepackage[letterpaper,margin=0.75in]{geometry}
\usepackage{graphicx}
\usepackage{xcolor}
\usepackage{parskip}

% Define colors for professional appearance
\definecolor{accent}{RGB}{0, 80, 120}

\begin{document}

% Full-width header with colored bar
{\color{accent}\rule{\textwidth}{0.1cm}}

\vspace{0.3cm}

% Modern header layout
\begin{minipage}{0.6\textwidth}
    \textbf{\LARGE Your Business Name} \\
    \textit{Your Tagline or Mission Statement}
\end{minipage}
\hfill
\begin{minipage}{0.35\textwidth}
    \raggedleft
    \small
    Your Website: yourbusiness.com \\
    Phone: (123) 456-7890 \\
    Email: contact@yourbusiness.com
\end{minipage}

{\color{accent}\rule{\textwidth}{0.05cm}}

\vspace{1cm}

% Main content area
\begin{minipage}[t]{0.45\textwidth}
    \textbf{TO:} \\
    Recipient Name \\
    Company/Organization \\
    Address Line 1 \\
    Address Line 2 \\
    City, State ZIP
\end{minipage}
\hfill
\begin{minipage}[t]{0.45\textwidth}
    \textbf{FROM:} \\
    Your Name \\
    Your Title \\
    Your Business \\
    Your Address \\
    City, State ZIP
\end{minipage}

\vspace{1.5cm}

% Letter body
\textbf{SUBJECT: [Brief Description of Letter Purpose]}

Dear [Recipient Name],

[This modern business template features a full-page layout with professional styling, including accent colors and organized information blocks. Perfect for contemporary business correspondence.]

We look forward to your response.

\vspace{2cm}

Sincerely,

\vspace{0.5cm}

\includegraphics[height=1cm]{signature.png} % Optional: include digital signature

\textbf{Your Name} \\
Your Title

\end{document}