meet.css

/* variables */

/*

Background: white;
background-decoration: black
alternate background: light-gray
text-pop: red;
button text - black, yellow (highlight), yellow (press)
button background: white, white (highlight), black (press)
button border: yellow, yellow, yellow
general border: black

*/
@media (prefers-color-scheme: dark) {
  :root {
    --background-default: #202020;
    --background-decoration: #aaa;
    --background-alternate: #101010;
    --pop-color: #C22202;
    --pop-color-button: #FFD40D;
    --border-color: #aaa;
    --text-color: #eee;
  }


.panel-contents > #html-output-view ::selection {
    color: black;
}
}
@media (prefers-color-scheme: light) {
  :root {
    --background-default: white;
    --background-decoration: #1F0F0C;
    --background-alternate: #aaa;
    --pop-color: #C22202;
    --pop-color-button: #FFD40D;
    --border-color: #1F1902;
    --text-color: black;
  }
}

/* resets */
* {
  box-sizing: border-box;
}

body {
  background-color: var(--background-default);
  font-family: 'American Typewriter', serif;
  padding: 0;
  margin: 0;
  color: var(--text-color);
}

/* button styles */

button {
    font-family: 'American Typewriter', serif;
}

.btn {
  background: var(--background-default);
  border-style: solid;
  border-color: var(--pop-color-button);
  padding: 8px;
  border-width: 2px;
  display: inline-block;
  font-weight: 600;
  font-size: 1rem;
  margin-right: 0.5rem;
  user-select: none;
  -webkit-user-select: none;
  color: var(--text-color);
  cursor: pointer;
}

.btn:hover {
    color: var(--pop-color-button);
    background: var(--background-alternate);
}

.btn:active, input[type="checkbox"]:checked + label{
  background: var(--background-decoration);
  color: var(--pop-color-button);
  cursor: pointer;
}

/* Page layout */

.app-layout {
  width: 100vw;
}

.app-panel-container {
  display: flex;
  height: 100vh;
  padding: 0;
  margin: 0;
  justify-content: flex-start;
  align-items: stretch;
  align-content: stretch;
  flex-direction: row;
}
.app-panel {
  margin: 0rem 0rem 0rem 1.75rem;
  position: relative;
  width: 100%;
  display: flex;
  flex-flow: column nowrap;
  justify-content: stretch;
  background-color: var(--background-default);
  border: 1px solid var(--border-color);
}

.app-panel > h2.panel-label {
  writing-mode: vertical-rl;
  rotate: 180deg;
  text-orientation: mixed;
  position: absolute;
  background-color: var(--background-default);
  border: 1px solid var(--border-color);
  left: 0px;
  top: -1px;
  margin: 0;
  transform: translateX(100%);
  padding: 0.5rem 0rem;
  text-shadow: 0px 1px var(--background-decoration);
  color: var(--pop-color);
  font-family: 'Didot', serif;
  letter-spacing: -1px;
}

.app-panel > .panel-toolbox {
  background-color: var(--background-alternate);
  padding: 0.5rem;
  order: -1;
}

.app-panel > .panel-contents {
  overflow: scroll;
  height: 100%;
  order: 1;
}

#html-output-view {
    font-family: Arial, Helvetica, sans-serif;
}

.panel-contents > #html-output-view ::selection {
    background: var(--pop-color-button);
}

@media screen and (max-width: 1000px) {
  .app-panel-container {
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto minmax(40vh, 1fr);
  }

  .app-panel:nth-child(3) {
    grid-row: 3/4;
  }

  .app-panel {
    margin: 0.125rem 0.125rem 1rem 0.125rem;
    width: unset;
    min-height: 0;
  }

  .app-panel > h2.panel-label {
    order: -2;
    writing-mode: inherit;
    text-orientation: inherit;
    transform: none;
    rotate: 0deg;
    padding: 0rem 0rem 0rem 0.5rem;
    position: initial;
    color: unset;
    text-shadow: unset;
  }

  #raw-file-contents {
    display: none;
  }
}

/* Output formatting */
.output-container {
  overflow: scroll;
  padding: 0.5rem;
}


pre {
  white-space: pre-wrap; /* Since CSS 2.1 */
  white-space: -moz-pre-wrap; /* Mozilla, since 1999 */
  white-space: -pre-wrap; /* Opera 4-6 */
  white-space: -o-pre-wrap; /* Opera 7 */
  word-wrap: break-word; /* Internet Explorer 5.5+ */
  overflow: scroll;
  padding: 0.5rem;
  background-color: var(--background-default);
}
pre:empty {
  display: none;
}

@media print {
  .screen-only {
    display: none;
  }
}

@media screen {
  .print-only {
    display: none;
  }
}

h3 {
    text-align: center;
    margin: 0.5rem;
}

/* Floating control */

#floatingTool {
    position:absolute;
    width: max-content;
    background-color: black;
    color: white;
    border: 4px solid var(--pop-color-button);
    vertical-align: top;
    padding: 0.15rem;
}

#floatingTool a {
    cursor: pointer;
}

#floatingTool a:hover{
    text-decoration: underline;
}

/* fancy tricks */
.halftone {
  --dotSize: 2px;
  --stop1: 3%;
  --stop2: 60%;
}

.halftone::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at center, var(--background-alternate) 3px, transparent 0),
    radial-gradient(circle at center, var(--background-decoration) var(--dotSize), transparent 0);
  background-size: 1rem 1rem;
  background-position: 0 0, 0.55rem 0.55rem;
  mask-image: linear-gradient(rgb(0 0 0), rgb(0 0 0 / 0));
}