body,
html {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    "Open Sans",
    "Helvetica Neue",
    sans-serif;
}

main {
  max-width: 50em;
  margin: 0 auto;
}

main h1 {
  margin-top: 1em;
}

label {
  display: inline-block;
  padding: 0.5em;
}

label input,
label select {
  margin-top: 0.25em;
}

label input[type="submit"] {
  margin-top: 0;
}

fieldset {
  border: 1px solid silver;
  margin-bottom: 1em;
}

fieldset legend {
  font-size: 0.75em;
  color: gray;
}

form pre {
  font-family: monospace;
  font-size: 1.2em;
  color: royalblue;
}

.tabs button {
  border: none;
  background: none;
  font-size: 1em;
  font-weight: bold;
  color: #444;

  cursor: pointer;
}

.tabs button:hover {
  color: royalblue;
}

.row {
  display: flex;
  flex-direction: row;
}

#result_frame pre {
  display: none;
}

#result_frame[data-show="text"] pre.text,
#result_frame[data-show="tbl"] pre.tbl,
#result_frame[data-show="csv"] pre.csv,
#result_frame[data-show="md"] pre.md {
  display: block;
}

#result_frame[data-show="text"] button[data-switch="text"],
#result_frame[data-show="csv"] button[data-switch="csv"],
#result_frame[data-show="tbl"] button[data-switch="tbl"],
#result_frame[data-show="md"] button[data-switch="md"] {
  color: royalblue;
  border-bottom: 2px solid royalblue;
}

hr {
  border: none;
  border-bottom: 1px solid silver;
}

dl {
  column-count: 2;
}

dl dt {
  font-weight: bold;
}

dl dd {
  margin-left: 0;
  margin-bottom: 0.5em;
}

.tooltip {
  position: relative;
}

mark {
  background-color: lightblue;
}

.tooltip::before {
  content: attr(data-tooltip);
  display: inline-block;
  position: absolute;
  bottom: 50%;
  left: -1%;
  background: #000;
  color: #fff;
  padding: 0.5em 0.7em;
  border-radius: 5px;
  opacity: 0;
  transition: 0.3s;
  overflow: hidden;
  max-width: 25em;
  min-width: 10em;
  pointer-events: none;
  /* prevents tooltip from firing on pseudo hover */
}

.tooltip:hover::before {
  opacity: 1;
  bottom: 100%;
}

#doaction {
  background-color: royalblue;
  border: none;
  padding: 0.5em 1em;
  color: white;
  border-radius: 4px;
  cursor: pointer;
}