:root {
  --primary-dark-color: #111D2F; /* Primary colour used by elements such as buttons */
  --very-dark-primary-color: #111D2F;  /* Darker primary colour used for contrast or hover effects */
  --primary-light-color: #fff; /* lighter colour or secondary colour */
  --topbar-background-color: #111D2F; /* background colour for the top bar of the navigation */
  --menu-background-color: #FFF; /* background colour for the menu bar of the navigation */
  --menu-alternative-background-color: #FFFFFF; /* Alternative background colour for the menu bar, used by some buttons */
  --menu-foreground-color: #000; /* font colour used in the menu bar */
  --link-color: #2199e8;
  --toc-link-color: #22175b; /* Colour used by text on TOC sidebar elements */
  --figure-caption-background-color: #003DAC; 
  --figure-caption-color: #FFFFFF;
}
.site-header{
  background: linear-gradient(90deg, #00001c 0%, #062323 50%, #117b39 100%);
}

.navbar-custom {
  background: transparent;
}

.header-image {
  max-height: 150px;
  max-width: 200%;
  margin-left: 8px;
}

@media (max-width: 768px) {
  .header-image {
    max-height: 150px;
    max-width: 100%;
    margin-left: 0px;
  }
}

.disp-quote {
  font-style: italic;
  margin: 20px auto;
  padding: 15px 20px;
  border: 1px solid #e0e0e0;
  background-color: #f9f9f9;
  max-width: 70ch;
  position: relative;
}

.disp-quote::before {
  content: "\201C";
  font-size: 4em;
  color: #ccc;
  position: absolute;
  left: -15px;
  top: -10px;
  line-height: 1;
  opacity: 0.5;
}

.disp-quote cite {
  display: block;
  margin-top: 15px;
  font-style: normal;
  font-size: 0.9em;
  color: #777;
}