:root {
  --color: black;
  --background: white;
  --highlight: #b23;
  --link-color: var(--highlight);
  --mark-background: color(from var(--highlight) srgb r g b / 0.15);

  --content-width: 42rem;
  --form-width: 24rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --color: white;
    --background: #222;
    --highlight: #e63e51;
    --mark-background: color(from var(--highlight) srgb r g b / 0.5);
  }
}
html {
  height: 100%;
  font:
    normal 100% / 1.6 system-ui,
    sans-serif;
  color: var(--color);
  background: color(from var(--color) srgb r g b / 0.05);
}
body {
  padding: 0 1em;
  margin: 0;
}
html.cover body {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
p,
ul {
  margin: 1em 0;
}
input,
button,
table {
  font: inherit;
}
hr {
  display: none;
}
a,
a:hover,
a:visited,
a:active {
  color: var(--link-color);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
main {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
}
h1 {
  font-family: serif;
  font-size: 1.6rem;
  font-weight: normal;
  font-variant: small-caps;
  line-height: 1.1;
  text-align: center;
  margin: 1rem auto;
  transform: scaleY(0.85);
}
h1 a,
h1 a:hover,
h1 a:visited,
h1 a:active {
  color: var(--color);
}
html.cover h1 {
  font-size: 2.4rem;
  margin: 2rem auto;
}
@media (max-width: 500px) {
  html.cover h1 {
    font-size: 2rem;
  }
}
form.input {
  text-align: center;
  margin: 1em auto 2em;
}
html.search form.input {
  font-size: 0.9em;
  margin-bottom: 1rem;
}
form.input .text {
  width: var(--form-width);
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
form.input .text svg {
  height: 1rem;
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
form.input .text input {
  display: block;
  width: 100%;
  font-size: 1.35em;
  font-weight: bold;
  background: none transparent;
  border: none;
  border-bottom: 0.15rem solid;
  padding: 0 1.5rem;
  box-sizing: border-box;
}
form.input .text input:focus {
  border-color: var(--link-color);
  outline: none;
}
form.input .text button {
  width: 1.3rem;
  text-align: right;
  background: none transparent;
  border: none;
  padding: 0 0.2rem;
  position: absolute;
  top: 50%;
  right: 0;
  transform: translate(0, -50%);
  cursor: pointer;
  box-sizing: border-box;
}
form.input .controls br,
form.input .controls input {
  display: none;
}
form.input .controls label {
  cursor: pointer;
}
form.input .controls label ~ label {
  margin-inline-start: 1.25em;
}
form.input .controls input + span::before {
  content: "\2713";
  display: inline-block;
  font-weight: bold;
  text-align: right;
  margin-right: 0.5em;
  opacity: 0.15;
}
form.input .controls input:checked + span::before {
  color: var(--highlight);
  opacity: 1;
}
.output {
  background: var(--background);
  padding: 2.75em 3em;
}
@media (max-width: 500px) {
  .output {
    padding: 0.5em 1em;
    margin: 0 -1em;
  }
  .output[data-status="loading"],
  .output[data-status="warning"] {
    padding: 1.5em 1em;
  }
}
.output[data-status="loading"] {
  text-align: center;
  background: transparent;
}

dl {
  display: block;
  list-style: none;
  padding: 0;
  margin: 0;
}
@media (max-width: 500px) {
  dl {
    margin: 1.75rem 0;
  }
}
dt {
  display: inline;
  font-weight: bold;
  border-bottom: 1px solid;
  padding: 0;
  margin: 0 0.65em 0 0;
}
dt:not(:first-child)::before {
  content: "";
  display: block;
  margin-top: 2em;
}
dd {
  display: inline;
  padding: 0;
  margin: 0;
}
dl mark {
  font-weight: inherit;
  font-style: inherit;
  color: inherit;
  background: var(--mark-background);
  border-bottom: 0.15em solid var(--highlight);
}
dd > span + span::before {
  content: " ⬥ ";
  color: var(--color);
  margin: 0 0.25em;
}
dd > span .ex::before {
  content: " ⬦ ";
  color: var(--color);
  margin: 0 0.25em;
}
dd .intro,
dd .spec,
dd .term .d {
  color: color(from var(--color) srgb r g b / 0.5);
}
dd .intro .d::before,
dd .intro .d::after {
  content: "'";
}
dd .title {
  font-weight: normal;
  font-style: italic;
  font-variant: all-small-caps;
  margin-right: 0.2em;
}
abbr {
  font-style: italic;
  text-decoration: none;
  white-space: nowrap;
  color: var(--highlight);
  cursor: help;
}
abbr.i {
  color: inherit;
}

footer {
  width: 100%;
  max-width: var(--content-width);
  text-align: center;
  padding: 1em;
  margin: 0 auto;
  box-sizing: border-box;
}
html.cover footer {
  margin-top: 1em;
}
nav {
  width: var(--form-width);
  max-width: 100%;
  margin: 0 auto;
}
html.search nav {
  display: none;
}
nav a {
  text-decoration: underline;
}
nav ul {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  justify-content: center;
  padding: 0;
  margin: 0;
}
nav li {
  display: inline-block;
  margin: 0 1em;
}
nav li.hidden {
  display: none;
}
nav li::after {
  content: "▶";
  font-size: 0.65em;
  margin-left: 0.75em;
}
footer p.signature {
  display: inline-block;
  font-size: 0.8em;
}
html.cover footer p.signature {
  margin-top: 4.2rem;
}
footer .signature span {
  font-size: 0.78em;
  margin-inline-start: 0.25em;
}