.middlebar{
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: auto;

  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;

  transition:
    background-color var(--theme-transition),
    border-color var(--theme-transition),
    box-shadow var(--theme-transition);
}

.equation-debug{
  width: 100%;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  gap: 0;
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  color: var(--text-color);
}

.debug-row{
  display: flex;
  border: 1px solid var(--border-color);
  margin-top: -1px;
}

.debug-row:first-child{
  margin-top: 0;
}

.debug-label{
  flex: 0 0 110px;
  padding: 6px 10px;
  font-weight: bold;
  border-right: 1px solid var(--border-color);
  user-select: none;
}

.debug-value{
  flex: 1 1 auto;
  padding: 6px 10px;
  word-break: break-all;
  min-height: 1.6em;
}

/* ── Parse table ── */

.parse-table{
  margin-top: 1rem;
  border-collapse: collapse;
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  color: var(--text-color);
}

.parse-table th,
.parse-table td{
  width: 1.1em;
  height: 1.6em;
  text-align: center;
  vertical-align: middle;
  border: 1px solid var(--border-color);
  padding: 0;
}

.parse-table th.parse-label,
.parse-table td.parse-label{
  width: auto;
  text-align: right;
  padding: 2px 8px;
  font-weight: bold;
  border-right: 2px solid var(--border-color);
  user-select: none;
  white-space: nowrap;
}

.parse-table .parse-zero{
  color: var(--border-color);
}

.parse-table .parse-separator td{
  height: 0.4em;
}

.parse-table .parse-syntax{
  font-weight: bold;
}

.equation-render{
  position: relative;
  margin: 2rem auto;
  max-width: 900px;
  min-height: 80px;
  /* border: 1px dashed var(--border-color); */
}