#let phd(doc) = {
  set page(paper: "a4", numbering: "1")

  set par(first-line-indent: 1em, justify: true, leading: 1em)

  // Code formatting
  show raw.where(block: true): it => {
    set par(justify: false)
    let split = it.text.split("\n")
    let len = split.len()
    grid(
      columns: (100%, 100%),
      column-gutter: -100%,
      block(width: 100%, inset: 1em, for (i, line) in split.enumerate() {
        if i != len - 1 {
          box(width: 0pt, align(right, str(i + 1) + h(2em)))
          hide(line)
          linebreak()
        }
      }),
      block(radius: 1em, fill: luma(246), width: 100%, inset: 1em, it),
    )
  }

  show heading: content => {
    v(0.5em)
    content
    v(0.38em)
  }

  show figure: content => {
    content
    v(1em)
  }

  show link: content => {
    set text(fill: blue)
    content
  }

  show cite: content => {
    set text(fill: blue)
    content
  }

  show ref: content => {
    set text(fill: blue)
    content
  }

  set heading(supplement: (..nums) =>
    if (nums.pos().len() == 1) {
      [Chapter]
    } else {
      [Section]
    }
  )

  set heading(numbering: (..nums) => {
    if nums.pos().len() >= 4 {
      none
    } else {
      nums.pos().map(str).join(".")
    }
  })

  show heading.where(level: 1): it => {
    if it.numbering != none {
      set page(header: [], footer: [])
      align(right, {
        v(100pt)
        if it.numbering != none {
          text(size: 50pt, weight: "bold")[Chapter ]
          set heading(numbering: (..nums) => str(nums.pos().at(0)))
          text(counter(heading).display(), size: 150pt, fill: rgb(173, 216, 230))
        }
        v(50pt)
        text(it.body, size: 40pt, weight: "bold")
        v(40pt)
      })
    } else {
      align(right, {
        v(100pt)
        if it.numbering != none {
          text(size: 50pt, weight: "bold")[Chapter ]
          set heading(numbering: (..nums) => str(nums.pos().at(0)))
          text(counter(heading).display(), size: 150pt, fill: rgb(173, 216, 230))
        }
        v(50pt)
        text(it.body, size: 40pt, weight: "bold")
        v(40pt)
      })
    }
  }

  show heading.where(level: 2): set text(size: 15pt)
  show heading.where(level: 3): set text(size: 13pt)

  doc
}

#let beforeChapter = () => {
  pagebreak(to: "odd")
}

#let afterNumberedChapter = () => {
}