"Simple table" with differing alignments

Question

I am facing an issues with tables. Currently my MWE looks like this:

\documentclass[12pt,a4paper]{scrreprt}
\usepackage[left=2.50cm, right=2.50cm, top=2.50cm, bottom=2.00cm]{geometry}
\usepackage{showframe}
\begin{document}
\begin{tabular}{p{7cm}p{.5cm}l}
\hrulefill \\ 
Datum
\end{tabular}% 
\hfill 
\begin{tabular}{p{7cm}p{.5cm}l}
\hrulefill \\ 
Unterschrift 
\end{tabular}% 
\end{document}

which produces this: https://i.stack.imgur.com/DUsFD.png Now, what I would like to achieve is first the top borders to start with the same spacing (as it looks to me the one on the left has more space than on the right). Second I would want the part "Unterschrift" to be aligned on the right. I've tried replacing the "l" in the tabular by an "r", as I understood this would change the alignment, but it did not work. What did I miss?

Thank you!

Answer 1

like this:

\documentclass[12pt,a4paper]{scrreprt}
\usepackage[left=2.50cm, right=2.50cm, top=2.50cm, bottom=2.00cm]{geometry}
\usepackage{array}
\newcolumntype{P}[1]{>{\raggedleft\arraybackslash}p{#1}}

%---------------- show page layout. don't use in a real document!
\usepackage{showframe}
\renewcommand\ShowFrameLinethickness{0.15pt}
\renewcommand*\ShowFrameColor{\color{red}}
%---------------------------------------------------------------%

\begin{document}
    \begin{center}
\begin{tabular}{ P{\dimexpr7cm}p{0.5cm}P{7cm} }
        &   &                   \\
\cline{1-1}\cline{3-3}
Datum   &   &   Unterschrift
\end{tabular}
    \end{center}
\end{document}