:root {
  --background: #f8f9fa;
  --foreground: #222222;
  --accent: cadetblue;
}
html {
  color: var(--foreground);
  font-size: 1em;
  line-height: 1.4;
}
@font-face {
  font-family: 'Libertinus Math';
  src: url('LibertinusMath-Regular.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
}
::-moz-selection {
  background: #b3d4fc;
  text-shadow: none;
}
::selection {
  background: #b3d4fc;
  text-shadow: none;
}
hr {
  display: block;
  height: 1px;
  border: 0;
  border-top: 1px solid #ccc;
  margin: 1em 0;
  padding: 0;
}
audio,
canvas,
iframe,
img,
svg,
video {
  vertical-align: middle;
}
fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}
textarea {
  resize: vertical;
}
body {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  background-color: var(--background);
}
main {
  max-width: 100ch;
  margin: 2em auto 0;
  text-align: center;
}
h1 {
  font-size: min(20vw, 250px);
}
p {
  line-height: 1.4;
  font-size: 1.5em;
}
a, a:hover, a:active, a:visited {
  color: var(--accent);
}
a:hover {
  text-decoration-style: wavy;
}
span.dot {
  color: var(--accent);
}
span.pt {
  color: #406b6d;
}
math {
  font-style: normal;
  font-weight: normal;
  line-height: normal;
  font-size-adjust: none;
  text-indent: 0;
  text-transform: none;
  letter-spacing: normal;
  word-wrap: normal;
  direction: ltr;
  /* font-family: 'Fira Math', math; */
  font-family: Libertinus Math, math;
}
.logo {
  width: min(max(35vw, 250px), 550px);
}




.hidden,
[hidden] {
  display: none !important;
}

/*
 * Hide only visually, but have it available for screen readers:
 * https://snook.ca/archives/html_and_css/hiding-content-for-accessibility
 *
 * 1. For long content, line feeds are not interpreted as spaces and small width
 *    causes content to wrap 1 word per line:
 *    https://medium.com/@jessebeach/beware-smushed-off-screen-accessible-text-5952a4c2cbfe
 */

.sr-only {
  border: 0;
  clip: rect(0, 0, 0, 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
  /* 1 */
}

/*
 * Extends the .sr-only class to allow the element
 * to be focusable when navigated to via the keyboard:
 * https://www.drupal.org/node/897638
 */

.sr-only.focusable:active,
.sr-only.focusable:focus {
  clip: auto;
  height: auto;
  margin: 0;
  overflow: visible;
  position: static;
  white-space: inherit;
  width: auto;
}

/*
 * Hide visually and from screen readers, but maintain layout
 */

.invisible {
  visibility: hidden;
}

/*
 * Clearfix: contain floats
 *
 * For modern browsers
 * 1. The space content is one way to avoid an Opera bug when the
 *    `contenteditable` attribute is included anywhere else in the document.
 *    Otherwise it causes space to appear at the top and bottom of elements
 *    that receive the `clearfix` class.
 * 2. The use of `table` rather than `block` is only necessary if using
 *    `:before` to contain the top-margins of child elements.
 */

.clearfix::before,
.clearfix::after {
  content: " ";
  display: table;
}

.clearfix::after {
  clear: both;
}


@media only screen and (min-width: 35em) {
  /* Style adjustments for viewports that meet the condition */
}

@media print,
  (-webkit-min-device-pixel-ratio: 1.25),
  (min-resolution: 1.25dppx),
  (min-resolution: 120dpi) {
  /* Style adjustments for high resolution devices */
}

@media print {
  *,
  *::before,
  *::after {
    background: #fff !important;
    color: #000 !important;
    /* Black prints faster */
    box-shadow: none !important;
    text-shadow: none !important;
  }

  a,
  a:visited {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
  }

  abbr[title]::after {
    content: " (" attr(title) ")";
  }

  /*
   * Don't show links that are fragment identifiers,
   * or use the `javascript:` pseudo protocol
   */
  a[href^="#"]::after,
  a[href^="javascript:"]::after {
    content: "";
  }

  pre {
    white-space: pre-wrap !important;
  }

  pre,
  blockquote {
    border: 1px solid #999;
    page-break-inside: avoid;
  }

  /*
   * Printing Tables:
   * https://web.archive.org/web/20180815150934/http://css-discuss.incutio.com/wiki/Printing_Tables
   */
  thead {
    display: table-header-group;
  }

  tr,
  img {
    page-break-inside: avoid;
  }

  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }

  h2,
  h3 {
    page-break-after: avoid;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #222222;
    --foreground: #f8f9fa;
  }
  .logo {
    filter: invert(100%) hue-rotate(180deg) brightness(1.3);
  }
}