.reference-table {
  max-height: 68vh;
  overflow: auto;
}

.reference-table td,
.reference-table th {
  text-align: right;
}

.reference-table td:first-child,
.reference-table th:first-child {
  position: sticky;
  left: 0;
  background: var(--surface);
  text-align: left;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}

th,
td {
  padding: 0.58rem 0.7rem;
  border-bottom: 1px solid var(--line);
  text-align: right;
  white-space: nowrap;
}

th:first-child,
td:first-child {
  text-align: left;
}

thead th {
  background: color-mix(in srgb, var(--line) 28%, var(--surface));
  color: var(--ink);
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  margin-top: 24px;
}

.case-list {
  display: grid;
  gap: 8px;
}

.case-list button {
  display: grid;
  gap: 4px;
  padding: 0.78rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.case-list button.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.case-list small {
  color: var(--muted);
  font-weight: 760;
}

.calculator-result {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.result-main {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
  font-size: 1.08rem;
  font-weight: 800;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}

.result-grid span {
  display: grid;
  gap: 3px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
  color: var(--muted);
}

.result-grid strong {
  color: var(--ink);
  font-size: 1.05rem;
}

.relations {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.relation-card {
  padding: 14px;
  color: var(--muted);
}

.workbook-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.workbook-card {
  padding: 16px;
}

.workbook-card ul {
  margin: 10px 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.sheet-meta {
  color: var(--muted);
  font-size: 0.86rem;
}

.empty {
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
}

.home-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  align-items: center;
  margin: 34px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.home-meta span:not(:last-child)::after {
  content: "·";
  margin-left: 0.8rem;
  color: var(--line);
}