/* Stylesheet override */

article {
  font-size: 22px;
  max-width: calc(297mm + 2em);
}

h2, h3, h4, h5, h6 {
  display: block;
  margin-block-start: 0;
  margin-block-end: 0.5em;
}

h2 + a, h3 + a, h4 + a, h5 + a, h6 + a {
  display: none;
}

/* Presentation controller */

#presentCont {
  margin: 0.5em 0.5em 0.5em 0;
}

#presentCont > img {
  height: 1.4em;
}

/* Slides styles */

.frow {
  flex-direction: row;
}

.frow > *:not(:last-child) {
  margin-right: 0.5em;
}

.fcol {
  flex-direction: column;
}

.fcol > *:not(:last-child) {
  margin-bottom: 0.5em;
}

.frow, .fcol {
  display: flex;
  flex-wrap: nowrap;
}

.frow > *, .fcol > * {
  flex: 1;
}

.frow, .fcol, .frow > *, .fcol > *, .slide > * {
  min-width: 0;
  min-height: 0;
}

.slide {
  display: flex;
  flex-direction: column;
  width: 297mm; /* Size of landscape A4 paper */
  height: 210mm;

  padding: 1em;
  box-sizing: border-box;
}

.slide img:not(.clicked-image) {
  max-height: 100%;
  height: auto;
  max-width: 100%;
  width: auto;
}

.slide .svg {
  max-height: 1em !important;
}

.centered {
  text-align: center;
}

.centered h1::after, .centered h2::after, .centered h3::after {
  content: " \2550"
}

.flexer {
  flex: 1;
}

.font35 {
  font-size: 35px;
}

.font30 {
  font-size: 30px;
}

.font27 {
  font-size: 27px;
}

.font20 {
  font-size: 20px;
}

.font18 {
  font-size: 18px;
}

.font35, .font30, .font27, .font20, .font18 {
  line-height: 1.5em;
}

.fright {
  float: right;
  text-align: right;
}

/* Media specific stylings */

@media screen {
  .slide {
    border: 1px solid var(--fg-color);
    margin-bottom: 1em;
  }
}

@media print {
  article, body {
    margin: 0;
    border: none !important;
    padding: 0;
    max-width: auto;
  }

  nav, article > p, article > h1, article > h2, article > h3, article > h4, article > h5, article > h6 {
    display: none !important;
  }

  .slide {
    width: 296.99mm;
    height: 209.5mm;
  }
}

/* Presenting mode */

#presentCont {
  display: initial;
}

.invisible {
  visibility: hidden;
}

.nodisplay {
  display: none;
}

.no-overflow {
  overflow: hidden;
}

.body-bg-color {
  background-color: var(--bg-color);
}

.absolute-slide {
  visibility: visible;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  height: min(100vh, 100vw / 1.414);
  width: min(100vh * 1.414, 100vw);
  border: none;
}

.absolute-cont {
  visibility: visible;
  position: absolute;
  bottom: 0;
  right: 0;
  opacity: 40%;
  z-index: 10;
}