:root {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font:
    15px/1.5 ui-monospace,
    Menlo,
    Consolas,
    monospace;
  background: #111;
  color: #ddd;
}

main {
  width: min(90vw, 480px);
  padding: 24px;
}

h1 {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 600;
}

label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: #999;
}

input {
  width: 100%;
  box-sizing: border-box;
  padding: 9px 10px;
  margin-bottom: 12px;
  background: #1a1a1a;
  border: 1px solid #333;
  border-radius: 4px;
  color: #ddd;
  font: inherit;
}

input:focus {
  outline: none;
  border-color: #666;
}

button {
  padding: 9px 14px;
  border: 1px solid #333;
  border-radius: 4px;
  background: #1a1a1a;
  color: #ddd;
  font: inherit;
  cursor: pointer;
}

button:hover {
  border-color: #666;
}

#out {
  margin-top: 16px;
}

#out[hidden] {
  display: none;
}

.field {
  margin-bottom: 12px;
}

.field span {
  font-size: 12px;
  color: #999;
}

.mono {
  margin-top: 4px;
  padding: 9px 10px;
  word-break: break-all;
  background: #1a1a1a;
  border: 1px solid #333;
  border-radius: 4px;
  user-select: all;
}

.row {
  display: flex;
  gap: 8px;
  align-items: center;
}

#done {
  font-size: 13px;
  color: #8a8;
}

#done[hidden] {
  display: none;
}