:root {
  --bg-color: #FFF;
  --link-color: #0080FF;
  --text-color: #333;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #111;
    --link-color: #8080FF;
    --text-color: #EEE;
  }
}

html, body {
  background: var(--bg-color);
  color: var(--text-color);
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;
  margin: 0;
}

main {
  min-height: calc(100vh - 8rem);
}

footer {
  align-items: center;
  display: flex;
  height: 2rem;
  justify-content: center;
  padding: 0 0 0 1rem;
}

figure {
  margin: 1rem 0 1rem 0;
  text-align: center;
}

figure img {
  cursor: zoom-in;
  width: 100%;
}

video, .vimeo {
  display: block;
  max-width: 100%;
  max-height: 30rem;
  margin: 1rem auto 1rem auto;
}

a {
  color: var(--link-color);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
a:visited {
  color: var(--link-color);
}

@media (prefers-color-scheme: dark) {
  a:hover {
    color: #b3b3ff;
    text-decoration: none;
    text-shadow: 0 0 .1rem #8080FF, 0 0 .2rem #8080FF, 0 0 .4rem #8080FF, 0 0 .8rem #8080FF;
  }
}

nav {
  align-items: center;
  display: flex;
  height: 2rem;
}
nav a {
  color: var(--text-color);
  border-bottom: 1px solid transparent;
  margin: 0 .5rem 0 .5rem;
  text-decoration: none;
  text-transform: uppercase;
}
nav a:hover {
  border-color: var(--text-color);
  text-decoration: none;
  transition: all .5s linear;
}
nav a:visited {
  color: var(--text-color);
}
.nav-active {
  border-color: var(--text-color);
  border-bottom: 1px solid;
}
nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}
nav li {
  display: inline;
}
@media (prefers-color-scheme: dark) {
  nav a:hover {
    color: var(--text-color);
    text-shadow: none;
  }
}

header {
  align-items: center;
  display: flex;
  height: 6rem;
  justify-content: center;
  margin: auto;
  max-width: 40rem;
}
.header-logo {
  margin: 0 1rem 0 1rem;
  width: 2rem;
}
.header-logo:hover {
  transform: scale(1.1);
  transition: all .25s linear;
}

.article-container {
  align-items: center;
  display: flex;
  flex-direction: column;
    margin: 0 .5rem 10rem .5rem;
}
.article-content {
  max-width: 40rem;
}

pre {
  tab-size: 4;
  overflow-x: auto;
  white-space: pre-wrap;
}

h1 {
  font-size: 2em;
}

h2 {
  font-size: 1.5em;
}

h3 {
  font-size: 1.17em;
}

.page-date {
  color: #AAA;
}

table, th, td {
  border: 1px solid var(--text-color);
  border-collapse: collapse;
  padding: .25em;
}