.coord-wrapper {
  display: inline-block;
  margin: 10px;
  font-family: monospace;
  text-align: center;
}
.coord-label {
  display: block;
  font-weight: bold;
  margin-bottom: 4px;
}
.coord-grid {
  display: grid;
  grid-template-rows: auto auto auto;
  grid-auto-flow: column;
  justify-content: center;
  align-items: center;
}
.digit-btn {
  cursor: pointer;
  display: flex;
  justify-content: center;
  font-size: 12px;
  line-height: 1;
  user-select: none;
  width: 1.5ch;
}
.digit-input {
  width: 1.5ch;
  border: none;
  text-align: center;
  font-size: 16px;
  background: none;
  padding: 0;
  margin: 0;
}
.digit-input.separator {
  color: gray;
  pointer-events: none;
}