% author Matus Necas, October 2026
% original work by Jan Sumsky <jan.sumsky@gmail.com>, August 2024
%
% Description: Global Beamer typography and font size configuration
%              for titles, body text, structural elements, and lists.

\RequirePackage{fix-cm}      % Enables arbitrary scaling for Computer Modern Sans Serif (cmss)

% Fix T1/cmtt/bx/n font shape substitution warning by mapping 'bx' (bold extended) to 'm' (medium) or 'b' (bold)
\DeclareFontShape{T1}{cmtt}{bx}{n}{<->ssub * cmtt/m/n}{}

\mode<presentation>

% Default body font size and baselineskip
\AtBeginDocument{\fontsize{12}{14}\selectfont}

% Frame, section, title, and subtitle font sizes
\setbeamerfont{title}{size*={22}{25pt}}
\setbeamerfont{subtitle}{size*={13}{15pt}}
\setbeamerfont*{frametitle}{parent=title}
\setbeamerfont*{section title}{parent=title}

% Author metadata font size
\setbeamerfont{author}{size*={10}{12pt}}

% Header and footer text font size
\setbeamerfont{title in head/foot}{size*={7}{8pt}}

% List item label font sizes (1st, 2nd, and 3rd hierarchy levels)
\setbeamerfont{item}{size*={12}{14pt}}
\setbeamerfont{subitem}{size*={11}{13pt}}
\setbeamerfont{subsubitem}{size*={10}{12pt}}

% Itemize / enumerate body text font sizes (1st, 2nd, and 3rd hierarchy levels)
\setbeamerfont{itemize/enumerate body}{size*={12}{14pt}}
\setbeamerfont{itemize/enumerate subbody}{size*={11}{13pt}}
\setbeamerfont{itemize/enumerate subsubbody}{size*={10}{12pt}}

\mode<all>