/* Helpers */

.valign {
  position: relative;
  top: 50%;
  transform: perspective(1px) translateY(-50%);
}

@media print {
  .valign {
    transform: none !important;
    top: 0;
  }
}

/*
Keith Andrews: extra CSS for my rslidy slides
*/

#rslidy-content-section .slide {
  font-size: 1.5em;
}

.slide:not(.rslidy-titleslide) {
  display: flex;
  flex-direction: column;
}

.footer {
  margin-top: auto;
  font-size: 50%;
  text-align: right;
}


span.li-intro {
/*  font-style: italic; */
  font-weight: bold;
}



ul.credits {
  font-size: 0.8em;
}

.numeric {
  text-align: right;
}

div#location {
  margin-top: 2em;
  text-align: right;
}

div#location p {
  display: inline;
  background-color: #eee;
  padding: 0.2em;
  border-radius: 0.2em;
  font-size: 60%;
}


span.isbn:before {
  content: "ISBN";
  font-size: 80%;
}



/* title slide has larger and centered text*/


.rslidy-titleslide
{
  text-align: center;
}

.rslidy-titleslide h1
{
  padding-top: 0.5em;
  font-size: 1.6em;
  margin-bottom: 1.4em;
}

.rslidy-titleslide h2
{
  font-size: 1.2em;
  margin-bottom: 1.4em;
}

.rslidy-titleslide h3
{
  font-size: 1em;
  margin-bottom: 1.2em;
}

.rslidy-titleslide p
{
  padding: 0.5em 0;
}




/* columns */

.columns {
  display: flex;
  flex-wrap: wrap;
}

.columns ul {
  margin: 0.5em;
}

/* columns spaced */

.columns-spaced {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
}

.columns-spaced ul {
  margin: 0.5em;
}

/* Two columns spaced evenly */

.rslidy-columns-even {
  display: flex;
  justify-content: space-evenly;
  align-items: flex-start;
  gap: 2em;
}

.rslidy-left-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5em;
}
.rslidy-right-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5em;
}

.item-half {
  padding: 1em;
  width: 50%;
}

.item-auto {
  padding: 1em;
  width: auto;
}

/* Description is marked in gray */

.description {
  background-color: lightgray;
}

/* CSS Grid */

.grid {
  display: grid;
  justify-content: center;
  align-content: center;
  grid-template-columns: repeat(auto-fit, minmax(25em,1fr));
}




.responsive-table .table-tick {
  color: green;
}

.responsive-table .table-cross {
  color: red;
}

/* figures */


figure {
  margin: 0 auto;
  display: table;
}

div.rslidy-images, div.rslidy-large-images {
  margin: 0 auto;
  padding: 0;
  display: flex;
  justify-content: center;
}

div.rslidy-images img, div.images video {
  object-fit: scale-down; /* preserve aspect ratio */
  max-width: 100%;
  max-height: 15em;
  width: auto;
  height: 15em;
}

div.rslidy-large-images img, div.rslidy-large-images video {
  object-fit: scale-down; /* preserve aspect ratio */
  max-width: 100%;
  max-height: 25em;
  width: auto;
  height: 25em;
}

figcaption {
  margin: 1em 0;
  font-size: 60%;
  text-align: center;
  display: table-caption;
  caption-side: bottom;
}

figcaption span.fig-label {
  font-weight: bold;
}

figcaption span.credit {
  font-size: 80%;
}

figcaption span.credit:before {
  content: "[";
}

figcaption span.credit:after {
  content: "]";
}


div.credits {
  margin: 1em 0;
  font-size: 60%;
  text-align: center;
}


/* code snippets */

code.block {
  display: inline-block;
  margin-right:100%;
  margin-left: 1em;
  margin-bottom: 1em;
}





/* keys */

kbd.key {
  border-radius: 3px;
  padding: 1px 2px 0;
  border: 1px solid black;
}




/* notes */

p.note {
  font-size: 80%;
  margin-top: -0.7em;
}

p.note:before {
  content: "[" ;
}

p.note:after {
  content: "]" ;
}

p {
  margin: 0 0 1em 0;
  padding: 0;
  max-width: 60ch;
}


/* test properies
#rslidy-toolbar {
  --toolbar-height: 4em;
}

 #rslidy-toolbar {
  --toolbar-height: orange;
}
*/