\documentclass[12pt]{beamer}
\usetheme{nordwind}

\title{Lorem Ipsum}
\subtitle{Dolor sit amet}
\author{Erika Muster}
\date{21 September 2026}

\begin{document}

\begin{frame}[plain]\titlepage\end{frame}

\section{Consetetur}

\begin{frame}
  \frametitle{Sadipscing Elitr}
  \begin{itemize}
  \item Lorem ipsum dolor sit amet
  \item Consetetur sadipscing elitr
  \item Sed diam nonumy eirmod tempor
  \end{itemize}
\end{frame}

\subsection{Invidunt}

\begin{frame}
  \frametitle{Ut Labore}
  \begin{itemize}
  \item \success{} Lorem ipsum dolor sit amet
  \item \fail{} Consetetur sadipscing elitr
  \end{itemize}
\end{frame}

\end{document}