:root {
  --bt-font: 13px/1.4 system-ui, -apple-system, Segoe UI, Roboto, Arial,
    sans-serif;
  --bt-bg: #fafafa;
  --bt-border: #d0d0d0;
  --bt-muted: #666;
  --bt-error: #b00020;
  --bt-ok: #0a7f2e;
}
.balance-tool {
  margin-top: 0.5rem;
  font: var(--bt-font);
}
.balance-tool__open,
.balance-tool__run {
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--bt-border);
  background: #f7f7f7;
  border-radius: 0.35rem;
  cursor: pointer;
}
.balance-tool__open {
  margin-right: 0.5rem;
}
.balance-tool__panel {
  margin-top: 0.5rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--bt-border);
  border-radius: 0.4rem;
  background: var(--bt-bg);
}
.balance-tool__row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin: 0.3rem 0;
}
.balance-tool__label {
  color: var(--bt-muted);
  min-width: 8.5rem;
}
.balance-tool__select,
.balance-tool__amount {
  max-width: 240px;
}
.balance-tool__status-area {
  margin-top: 0.5rem;
}
.balance-tool__error {
  color: var(--bt-error);
  font-weight: 600;
}
.balance-tool__report {
  margin-top: 0.5rem;
  border-left: 3px solid #d9d9d9;
  padding: 0.5rem 0.6rem;
  background: #fff;
}
.balance-tool__kv {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.25rem 0.75rem;
}
.balance-tool__kv dt {
  color: var(--bt-muted);
}
.balance-tool__kv dd {
  margin: 0;
}
.balance-tool.is-busy {
  opacity: 0.7;
  pointer-events: none;
}