:root {
  --color: #000d;
  --background: #eaeaea;
  --picture-background: #dadada;
  --picture-border-color: #d8d8d8;
  --link-color: #5468a6;
  --lighter-color: rgb(from var(--color) r g b / 0.35);
  --target-picture-background: rgb(from var(--link-color) r g b / 0.3);
}
@media (prefers-color-scheme: dark) {
  :root {
    --color: #fffa;
    --background: #1a1a1a;
    --picture-background: #292929;
    --picture-border-color: #2c2c2c;
    --link-color: #226698;
  }
}
html {
  font: normal 100% / 1.2 sans-serif;
  color: var(--color);
  background: var(--background);
}
body {
  margin: 0;
}
a,
a:link,
a:visited,
a:hover,
a:active {
  color: var(--link-color);
  text-decoration: none;
}
a:hover {
  background: rgb(from var(--link-color) r g b / 0.1);
}
a:not([href]) {
  color: inherit;
  pointer-events: none;
  opacity: 0.3;
}
html[data-interactive] picture img {
  background-color: transparent;
  opacity: 0.1;
  transition: opacity 0.3s;
}
html[data-interactive] picture img.loaded {
  opacity: 1;
}
nav {
  font-size: 0.9rem;
  text-align: center;
  padding: 0.5em var(--padding-x);
  user-select: none;
}
nav a {
  display: inline-block;
  min-width: 3.5em;
  text-align: center;
  border-radius: 0.25em;
  padding: 0.5em 0.5em 0.55em;
  margin: 0 0.25em;
  box-sizing: border-box;
}