.bc-hist {
  max-width: 360px;
  margin: 0 auto 0.75rem;
  font-family: ui-monospace, Menlo, monospace;
}
.bc-row {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0.4rem;
  border-bottom: 1px solid var(--line);
}
.bc-in {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.bc-in input {
  width: 2.4rem;
  text-align: center;
  font-size: 1.3rem;
  padding: 0.35rem;
}
.bc-keys {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
  max-width: 320px;
  margin: 0.5rem auto;
}