\ProvidesPackage{packages/sleek-theorems}[2022/11/18 v1.2.1 Sleek Theorems]

%%%%%%%%%%%%
% Settings %
%%%%%%%%%%%%

\RequirePackage{amsthm}
\RequirePackage{thmtools}
\RequirePackage[framemethod=TikZ]{mdframed}

% Setup

\define@key{thmdef}{mdthm}[{}]{
    \thmt@trytwice{\def\thmt@theoremdefiner{\mdtheorem[#1]}}{}
}

% QED symbol

\renewcommand{\qedsymbol}{$\blacksquare$} % filled \qed

%%%%%%%%%%%%%
% Languages %
%%%%%%%%%%%%%

\def\lgtheorem{Theorem}
\def\lgproof{Proof}
\def\lglemma{Lemma}
\def\lgproposition{Proposition}
\def\lgdefinition{Definition}
\def\lghypothesis{Hypothesis}
\def\lgmethod{Method}
\def\lgquestion{Question}
\def\lganswer{Answer}
\def\lgexample{Example}
\def\lgremark{Remark}
\def\lgnote{Note}
\def\lgtip{Tip}

\DeclareOption{french}{
    \def\lgtheorem{Théorème}
    \def\lgproof{Preuve}
    \def\lglemma{Lemme}
    \def\lgproposition{Proposition}
    \def\lgdefinition{Définition}
    \def\lghypothesis{Hypothèse}
    \def\lgmethod{Méthode}
    \def\lgquestion{Question}
    \def\lganswer{Réponse}
    \def\lgexample{Exemple}
    \def\lgremark{Remarque}
    \def\lgnote{Note}
    \def\lgtip{Conseil}
}

\DeclareOption{german}{
    \def\lgtheorem{Satz}
    \def\lgproof{Beweis}
    \def\lglemma{Hilfssatz}
    \def\lgproposition{Proposition}
    \def\lgdefinition{Definition}
    \def\lghypothesis{Hypothese}
    \def\lgmethod{Methode}
    \def\lgquestion{Frage}
    \def\lganswer{Antwort}
    \def\lgexample{Beispiel}
    \def\lgremark{Anmerkung}
    \def\lgnote{Notiz}
    \def\lgtip{Hinweis}
}

\ProcessOptions\relax

%%%%%%%%%%%%%%%%
% Environments %
%%%%%%%%%%%%%%%%

% Environments

\theoremstyle{plain}
\newtheorem{theorem}{\lgtheorem}
\newtheorem{lemma}[theorem]{\lglemma}
\newtheorem{proposition}[theorem]{\lgproposition}

\theoremstyle{definition}
\newtheorem{definition}{\lgdefinition}
\newtheorem{hypothesis}{\lghypothesis}
\newtheorem{method}{\lgmethod}
\newtheorem{question}{\lgquestion}

\let\proof\relax % overwrite proof environment
\let\endproof\relax

\theoremstyle{remark}
\newtheorem{proof}{\lgproof}[theorem]
\newtheorem{answer}{\lganswer}[question]
\newtheorem{example}{\lgexample}
\newtheorem*{remark}{\lgremark}
\newtheorem*{note}{\lgnote}
\newtheorem*{tip}{\lgtip}

% Framed environments

\mdfdefinestyle{thicc}{
    nobreak=true,
    skipabove=\topskip,
    skipbelow=\topskip,
    innerleftmargin=0.5em,
    innerrightmargin=0.5em,
    innerbottommargin=1ex,
    innertopmargin=1ex,
    linewidth=0.25em,
    roundcorner=0.15em,
    linecolor=black!10,
    frametitlebackgroundcolor=black!10,
    theoremseparator={.}
}

\declaretheorem[mdthm={style=thicc, linecolor=red!20, frametitlebackgroundcolor=red!20}, sibling=theorem, name=\lgtheorem]{fmd-theorem}
\declaretheorem[mdthm={style=thicc, linecolor=red!20, frametitlebackgroundcolor=red!20}, sibling=lemma, name=\lglemma]{fmd-lemma}
\declaretheorem[mdthm={style=thicc, linecolor=blue!20, frametitlebackgroundcolor=blue!20}, sibling=proposition, name=\lgproposition]{fmd-proposition}
\declaretheorem[mdthm={style=thicc, nobreak=false}, sibling=proof, name=\lgproof]{fmd-proof}

\declaretheorem[mdthm={style=thicc, linecolor=black!20!green!20, frametitlebackgroundcolor=black!20!green!20}, sibling=definition, name=\lgdefinition]{fmd-definition}
\declaretheorem[mdthm={style=thicc, linecolor=blue!20, frametitlebackgroundcolor=blue!20}, sibling=hypothesis, name=\lghypothesis]{fmd-hypothesis}
\declaretheorem[mdthm={style=thicc, nobreak=false}, name=\lgmethod]{fmd-method}
\declaretheorem[mdthm={style=thicc, linecolor=orange!20, frametitlebackgroundcolor=orange!20}, sibling=question, name=\lgquestion]{fmd-question}

\declaretheorem[mdthm={style=thicc, nobreak=false}, sibling=answer, name=\lganswer]{fmd-answer}
\declaretheorem[mdthm={style=thicc, nobreak=false}, sibling=example, name=\lgexample]{fmd-example}

\endinput