#let infobox(
  body,
  title: none,
  stroke-color: black,
  fill-color: luma(245),
  border-width: 1pt,
  radius: 4pt,
  padding: 8pt,
) = {
  block(
    width: 100%,
    stroke: (paint: stroke-color, thickness: border-width),
    fill: fill-color,
    radius: radius,
    inset: padding,
  )[
    #if title != none [
      *#title*\
    ]
    #body
  ]
}

#let problembox(body, title: none) = infobox(
  body,
  title: title,
  fill-color: aqua.transparentize(80%)
)

#let answerbox(body, title: none) = infobox(
  body,title: title, fill-color: red.transparentize(80%)
)

#let addinfobox(body, title: none) = infobox(
  body,
  title: title,
  fill-color: rgb("#FFB3BF").transparentize(80%)
)