/* FONT IMPORT */
@font-face {
  font-family: 'PC-9800';
  src: url(https://casowary.neocities.org/pc-9800.ttf);
}

.crt::before {
  content: " ";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  z-index: 2;
  background-size: 100% 2px, 3px 100%;
  pointer-events: none;
}

@keyframes flicker {
  0% {
  opacity: 0.27861;
  }
  5% {
  opacity: 0.34769;
  }
  10% {
  opacity: 0.23604;
  }
  15% {
  opacity: 0.10626;
  }
  20% {
  opacity: 0.18128;
  }
  25% {
  opacity: 0.10626;
  }
  30% {
  opacity: 0.18128;
  }
  35% {
  opacity: 0.23604;
  }
}

.crt::after {
  content: " ";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: rgba(18, 16, 16, 0.1);
  opacity: 0;
  z-index: 2;
  pointer-events: none;
  animation: flicker 0.15s infinite;
}

.site-button {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.site-button textarea {
  font-family: monospace;
  font-size: 0.7em;
}

nav ul {
  margin: 0 -5px;
  padding: 0;
  list-style: none;
  user-select: none;
}

nav ul li {
  margin-bottom: 0;
}

nav > ul li > a,
nav > ul li > strong {
  display: inline-block;
}

nav > ul li > a,
nav > ul li > details summary,
nav > ul li > strong {
  padding: 5px 10px;
}

nav > ul li > a.active,
nav > ul li > details.active summary {
  font-weight: bold;
}

nav ul summary {
  cursor: pointer;
}

nav ul ul li > a {
  padding-left: 30px;
}

main {
  line-height: 1.5;
}

main p,
main .image,
main .full-width-image,
main .two-columns {
  margin: 0.75em 0;
}

main ol,
main ul {
  margin: 0.5em 0;
  padding-left: 1.5em;
}

main ol li,
main ul li {
  margin-bottom: 0.2em;
  line-height: 1.3;
}

main ol {
  padding-left: 2em;
}

main h1:first-child,
main h2:first-child,
main h3:first-child,
main h4:first-child,
main h5:first-child,
main h6:first-child {
  margin-top: 0;
}

main h1 {
  font-size: 1.5em;
}

main h2 {
  font-size: 1.4em;
}

main h3 {
  font-size: 1.3em;
}

main h4 {
  font-size: 1.2em;
}

main h5 {
  font-size: 1.1em;
}

main h6 {
  font-size: 1em;
}


.two-columns {
  display: flex;
}

.two-columns > * {
  flex: 1 1 0;
  margin: 0;
}

.two-columns > *:first-child {
  padding-right: 0.75em;
}

.two-columns > *:last-child {
  padding-left: 0.75em;
}

.image {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
}

.full-width-image {
  display: block;
  width: 100%;
  height: auto;
}

.images {
  display: flex;
  width: calc(100% + 5px + 5px);
  margin-left: -5px;
  margin-right: -5px;
}

.images img {
  width: 100%;
  height: auto;
  padding: 5px;
  margin: 0;
  overflow: hidden;
}

#skip-to-content-link {
  position: fixed;
  top: 0;
  left: 0;
  display: inline-block;
  padding: 0.375rem 0.75rem;
  line-height: 1;
  font-size: 1.25rem;
  background-color: 0;
  color: #FFFFFF;
  transform: translateY(-3rem);
  transition: transform 0.1s ease-in;
  z-index: 99999999999;
}

#skip-to-content-link:focus,
#skip-to-content-link:focus-within {
  transform: translateY(0);
}