#let letter(
lang: "de",

place: "Graz",
date: datetime.today().display("[day].[month].[year]"),

title: "Dr.",
firstname: "John",
lastname: "Doe",

departement: [Institut für Mathematik und Wissenschaftliches Rechnen],

address: "Heinrichstraße 36, 8010 Graz",

phone: 1234,


homepage: "https://imsc.uni-graz.at/doe",

subject: [The letter subject should fit on one line.],

signature: none,
body:none,
firstpage
) = [

#set text(font:"Nunito Sans", lang: lang)

#let email = [#firstname.#lastname\@uni-graz.at]

#let signature_block = [
  #if signature != none {
    signature
  } else [
    #v(2em)
    Mit freundlichen Grüßen

    #title #firstname #lastname
  ]
]

#let senderinfo = align(right)[
        #set text(8pt)
        *Universität Graz* \
        *#departement* \
        #title #firstname #lastname \
        #address \
        +43 (0)316 / 380-#phone | #email \
        #homepage]

#set page(
  margin: (bottom: 5.23cm),
  footer: [
    #set text(8pt)
    #grid(columns:(auto, 1fr, auto),
      align(bottom)[#context{ counter(page).display("1/1", both: true) }],
      [],
      senderinfo)
])

#page(
  margin: auto,
  footer: context {
    set text(8pt)
    if counter(page).final().at(0) > 1 { counter(page).display("1/1", both: true) }
  })[#align(right)[#image("logos/kfulogo_claim.pdf", height: 2cm)]

Name/Institution \
Abteilung \
Titel Vorname Nachnamen \
Adresse \
PLZ Ort

#senderinfo
#align(right)[#place, #date]

*#subject*

#firstpage

#if body == none [
  #signature_block
]
]

#if body != none [
#body

#signature_block
]
]