cs249r_book/tinytorch/book/tex/header-includes.tex

% =============================================================================
% LATEX HEADER CONFIGURATION FOR TINYTORCH MONOGRAPH (VOLUME 1 STYLE)
% =============================================================================

\usepackage{adjustbox}
\usepackage{afterpage}
\usepackage{array}
\usepackage{caption}
\usepackage{microtype}
\usepackage{fancyhdr}
\usepackage{geometry}
\usepackage{graphicx}
\usepackage{float}
\usepackage[skins,breakable]{tcolorbox}
\usepackage{fontspec}
\usepackage{amsmath,amssymb}
\usepackage{enumitem}
\usepackage{titlesec}
\usepackage{fvextra}
\usepackage{newunicodechar}

% Page Geometry (7.5" x 9.25" Monograph Standard)
\geometry{
  paperwidth=7.5in,
  paperheight=9.25in,
  top=0.9in,
  bottom=0.9in,
  inner=0.9in,
  outer=0.9in,
  footskip=25pt
}

% Microtypography
\microtypesetup{
  activate={true,nocompatibility},
  final,
  tracking=true,
  protrusion=true,
  expansion=true
}

% Code Block Highlighting and Wrapping
\DefineVerbatimEnvironment{Highlighting}{Verbatim}{%
  breaklines,%
  breakanywhere,%
  breaksymbolleft={\color{flameorange!60}\hookrightarrow\space},%
  commandchars=\\\{\}%
}
\RecustomVerbatimEnvironment{verbatim}{Verbatim}{%
  breaklines,%
  breakanywhere,%
  breaksymbolleft={\color{flameorange!60}\hookrightarrow\space}%
}

% Headers & Footers
\pagestyle{fancy}
\fancyhf{}
\fancyhead[LE]{\footnotesize\color{crimson}\scshape\nouppercase{\leftmark}}
\fancyhead[RO]{\footnotesize\color{crimson}\scshape\nouppercase{\rightmark}}
\fancyfoot[LE,RO]{\small\color{crimson}\thepage}
\renewcommand{\headrulewidth}{0.4pt}
\renewcommand{\footrulewidth}{0pt}
\renewcommand{\headrule}{{\color{crimson!40}\hrule height 0.4pt}}

\fancypagestyle{plain}{
  \fancyhf{}
  \fancyfoot[C]{\small\color{crimson}\thepage}
  \renewcommand{\headrulewidth}{0pt}
}

% Section Titles Styling (Harvard Crimson)
\titleformat{\chapter}[display]
  {\normalfont\sffamily}
  {\color{flameorange}\Large\bfseries Chapter \thechapter}
  {0.5em}
  {\color{crimson}\Huge\bfseries}
  [\vspace{0.4em}{\color{crimson!30}\titlerule[0.5pt]}]
\titlespacing*{\chapter}{0pt}{10pt}{24pt}

% Numberless chapters (Index, Preface, Appendices)
\titleformat{name=\chapter,numberless}[display]
  {\normalfont\sffamily}
  {}
  {0pt}
  {\color{crimson}\Huge\bfseries}
  [\vspace{0.4em}{\color{crimson!30}\titlerule[0.5pt]}]
\titlespacing*{name=\chapter,numberless}{0pt}{10pt}{24pt}


\titleformat{\section}
  {\normalfont\Large\bfseries\color{crimson}}
  {\thesection}{0.6em}{}
\titleformat{\subsection}
  {\normalfont\large\bfseries\color{darknavy}}
  {\thesubsection}{0.5em}{}
\titleformat{\subsubsection}
  {\normalfont\normalsize\bfseries\color{darknavy!85}}
  {\thesubsubsection}{0.5em}{}

\titlespacing*{\section}{0pt}{1.4em}{0.5em}
\titlespacing*{\subsection}{0pt}{1.1em}{0.4em}
\titlespacing*{\subsubsection}{0pt}{0.9em}{0.3em}

% Paragraph formatting
\setlength{\parskip}{0pt plus 0.5pt}
\setlength{\parindent}{1.2em}

% Callout palette overrides
\definecolor{quarto-callout-note-color}{HTML}{1B3A5F}
\definecolor{quarto-callout-tip-color}{HTML}{2E7D32}
\definecolor{quarto-callout-warning-color}{HTML}{D97706}
\definecolor{quarto-callout-caution-color}{HTML}{A51C30}
\definecolor{quarto-callout-important-color}{HTML}{C026D3}

\definecolor{quarto-callout-note-color-frame}{HTML}{1B3A5F}
\definecolor{quarto-callout-tip-color-frame}{HTML}{2E7D32}
\definecolor{quarto-callout-warning-color-frame}{HTML}{D97706}
\definecolor{quarto-callout-caution-color-frame}{HTML}{A51C30}
\definecolor{quarto-callout-important-color-frame}{HTML}{C026D3}

\tcbset{
  fonttitle=\bfseries\sffamily\color{crimson},
  beforeafter skip=8pt,
  boxrule=0.6pt,
  left=10pt,
  right=10pt,
  top=8pt,
  bottom=8pt
}

% Unicode character mappings
\newunicodechar{●}{$\bullet$}
\newunicodechar{○}{$\circ$}
\newunicodechar{✓}{\checkmark}
\newunicodechar{✗}{$\times$}
\newunicodechar{→}{$\rightarrow$}
\newunicodechar{←}{$\leftarrow$}
\newunicodechar{↔}{$\leftrightarrow$}
\newunicodechar{≈}{$\approx$}
\newunicodechar{≠}{$\neq$}
\newunicodechar{≤}{$\leq$}
\newunicodechar{≥}{$\geq$}
\newunicodechar{∈}{$\in$}
\newunicodechar{∑}{$\sum$}
\newunicodechar{∏}{$\prod$}
\newunicodechar{∂}{$\partial$}
\newunicodechar{∇}{$\nabla$}

% Ensure Preface and Index do not advance main chapter counters
\let\origchapter\chapter
\newcommand{\startmainmatter}{%
  \mainmatter
  \setcounter{chapter}{0}%
}


% Automatic chapter counter synchronization
\usepackage{etoolbox}
\pretocmd{\part}{%
  \ifnum\value{part}=0
    \setcounter{chapter}{0}%
  \fi
}{}{}