.body-font, html {
  font: 1em/140% "Open Sans", sans-serif;
  letter-spacing: 0.03em; }

.heading-font, .top-nav {
  font: 3.5em/140% "Share Tech Mono", monospace;
  letter-spacing: 0.03em; }

/*
   * Remove text-shadow in selection highlight:
   * https://twitter.com/miketaylr/status/12228805301
   *
   * Vendor-prefixed and regular ::selection selectors cannot be combined:
   * https://stackoverflow.com/a/16982510/7133471
   *
   * Customize the background color to match your design.
   */
::-moz-selection {
  background: #b3d4fc;
  text-shadow: none; }

::selection {
  background: #b3d4fc;
  text-shadow: none; }

/*
   * A better looking default horizontal rule
   */
hr {
  display: block;
  height: 1px;
  border: 0;
  border-top: 1px solid #ccc;
  margin: 1em 0;
  padding: 0; }

/*
   * Remove the gap between audio, canvas, iframes,
   * images, videos and the bottom of their containers:
   * https://github.com/h5bp/html5-boilerplate/issues/440
   */
audio,
canvas,
iframe,
img,
svg,
video {
  vertical-align: middle; }

/*
   * Remove default fieldset styles.
   */
fieldset {
  border: 0;
  margin: 0;
  padding: 0; }

/*
   * Allow only vertical resizing of textareas.
   */
textarea {
  resize: vertical; }

/* ==========================================================================
     Browser Upgrade Prompt
     ========================================================================== */
.browserupgrade {
  margin: 0.2em 0;
  background: #ccc;
  color: #000;
  padding: 0.2em 0; }

/* ==========================================================================
     Author's custom styles
     ========================================================================== */
/* ==========================================================================
     Helper classes
     ========================================================================== */
/*
   * Hide visually and from screen readers
   */
.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: " ";
  /* 1 */
  display: table;
  /* 2 */ }

.clearfix:after {
  clear: both; }

/* ==========================================================================
     EXAMPLE Media Queries for Responsive Design.
     These examples override the primary ('mobile first') styles.
     Modify as content requires.
     ========================================================================== */
@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 */ }

/* ==========================================================================
     Print styles.
     Inlined to avoid the additional HTTP request:
     https://www.phpied.com/delay-loading-your-print-css/
     ========================================================================== */
@media print {
  *,
  *:before,
  *:after {
    background: transparent !important;
    color: #000 !important;
    /* Black prints faster */
    -webkit-box-shadow: none !important;
    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-line !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; } }

html {
  box-sizing: border-box; }
  
h1 {
    line-height: 115%;
}

pre {
    white-space: pre-wrap;
}
  
.side-nav a {
  color: #555;
}

.side-nav a:visited {
  color: #555;
}

.main .left-button {
    display: none;
}

a {
  text-decoration: none;
  color: #d38f12; }

a:visited {
  color: #d38f12; }

a:hover {
  text-decoration: underline; }

.top-nav {
  background-color: #333;
  padding: 0.6em 0;
  font-size: 1em;
  height: 5.3em;
  box-sizing: border-box;
  position: fixed;
  width: 100%;
  z-index: 100; }
  .top-nav .centred-container {
    display: flex; }
    .top-nav .centred-container .logo {
      display: inline-block;
      border: solid 0.5em #eee;
      border-radius: 4em;
      padding: 1em 0.8em;
      font-size: 0.5em;
      margin-left: 2em; }
      .top-nav .centred-container .logo .open-curly {
        font-size: 5em;
        vertical-align: middle;
        color: #eee; }
      .top-nav .centred-container .logo img {
        height: 5em;
        position: relative;
        left: -0.4em; }
    .top-nav .centred-container .logo-text {
      color: #eee;
      font-size: 2.2em;
      vertical-align: middle;
      margin-left: 0.4em;
      position: relative;
      top: 0.1em;
    }
    .top-nav .centred-container .home-link:hover {
        text-decoration: none;
    }
    .top-nav .centred-container .links {
      display: flex;
      flex: 1 1;
      justify-content: center;
      align-items: center; }
      .top-nav .centred-container .links .section-link {
        height: 1em;
        padding: 0 1em;
        color: white; }

.top-nav-spacer {
  height: 5.3em; }

.centred-container {
  max-width: 1200px;
  padding: 0 20px;
  margin: 0 auto; }

.centred-container.narrow {
  max-width: 800px;
}

.page-container {
    overflow-x: hidden;
}
  
@media screen and (max-width: 710px) {
    .top-nav {
        width: 100vw;
    }
    
    .top-nav .centred-container .logo-text {
        display: none;
    }
    
    .top-nav .centred-container .links {
        justify-content: flex-start;
    }
    
    .page-container nav.side-nav {
        border-top: none;
        background-color: white;
        width: 100%;
    }
    
    .page-container section.main {
        margin-left: 0;
        transition: 0.5s;
        z-index: 1;
        background-color: white;
        width: 100%;
        padding: 0;
    }
    
    .page-container.show-body section.main {
        margin-left: 0;
    }
    
    .page-container.show-body nav.side-nav {
        visibility: hidden;
    }
    
    .page-container.show-nav section.main {
        margin-left: 100vw;
    }
    
    .top-nav {
        border-bottom: 0.6em solid #d38f12;
        height: 5.9em;
    }
    
    .top-nav .home-link {
        min-width: 82px;
    }
    
    .top-nav .centred-container .links {
        flex-wrap: wrap;
    }
    
    .page-container .left-button {
        display: block;
        position: fixed;
        transform: rotate(180deg);
        top: 115px;
        transition: 0.5s;
    }
    
    .page-container.show-nav .left-button {
        opacity: 0;
    }
}