:root {
  color-scheme: light dark;
  --ink: #111;
  --dim: #5c5c5c;
  --line: #d4d4d4;
  --ground: #fbfbfa;
  --raised: #fff;
  --bad: #a11;
  --warn: #8a5300;
  --good: #176b3a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8e8e6;
    --dim: #a0a09c;
    --line: #3a3a38;
    --ground: #1a1a19;
    --raised: #232322;
    --bad: #f08a80;
    --warn: #e0a458;
    --good: #6fcf97;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 1.5rem;
  background: var(--ground);
  color: var(--ink);
  font: 15px/1.5 system-ui, sans-serif;
}

h1 {
  font-size: 1.3rem;
  margin: 0 0 0.3rem;
}

h2 {
  font-size: 1rem;
  margin: 0;
}

header p {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  color: var(--dim);
}

main {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  main {
    grid-template-columns: minmax(0, 1fr);
  }
}

fieldset {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--raised);
  margin: 0 0 1rem;
  padding: 0.9rem 1rem 1rem;
}

/* Floating a legend takes it out of the cut-out in the border and lays it
   inside the card like a heading. */
legend {
  float: left;
  width: 100%;
  padding: 0;
  margin-bottom: 0.7rem;
  font-weight: 600;
}

legend + * {
  clear: both;
}

.hint {
  color: var(--dim);
  margin: 0 0 0.7rem;
  font-size: 0.9em;
}

.hint.warn {
  color: var(--warn);
}

#exempt-hint {
  margin: 0.5rem 0 0;
}

label.check {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.7rem;
}

label.stacked {
  display: block;
  color: var(--dim);
  font-size: 0.9em;
}

input[type="text"],
select,
textarea {
  font: inherit;
  color: inherit;
  background: var(--ground);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.3rem 0.4rem;
  min-width: 0;
}

textarea {
  width: 100%;
  font-family: ui-monospace, monospace;
  font-size: 0.9em;
  resize: vertical;
}

button {
  font: inherit;
  color: inherit;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
}

button:hover {
  border-color: var(--dim);
}

.rule {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  padding: 0.4rem 0;
  border-top: 1px solid var(--line);
}

.rule input[type="text"] {
  flex: 1 1 8rem;
}

.rule .drop {
  margin-left: auto;
}

.client {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.8rem;
}

.client-head {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.client-head input[type="text"] {
  flex: 1;
}

.empty {
  color: var(--dim);
  font-size: 0.9em;
  padding: 0.4rem 0;
}

.document {
  position: sticky;
  top: 1.5rem;
}

.document-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

#json {
  height: 26rem;
}

#status {
  margin: 0.5rem 0 0;
  white-space: pre-wrap;
  color: var(--good);
}

#status.bad {
  color: var(--bad);
}