/* Shared unit-conversion workbench for the homepage and Tools page. */
#panel-unit {
  --unit-ink: #102a44;
  --unit-muted: #50647b;
  --unit-line: #d7e2ec;
  --unit-accent: #145bb4;
}

#panel-unit .tool-panel-heading {
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--unit-line);
}

#panel-unit .tool-panel-heading h2 {
  margin: 0 0 7px;
  color: var(--unit-ink);
  font-size: clamp(21px, 2.3vw, 27px);
  font-weight: 800;
  letter-spacing: -.035em;
}

#panel-unit .tool-panel-heading p {
  color: var(--unit-muted);
  font-size: 13px;
  line-height: 1.6;
}

#panel-unit .tool-status {
  flex: none;
  padding: 7px 11px;
  border: 1px solid #cfe0f3;
  border-radius: 7px;
  background: #f2f7fc;
  color: #285887;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

#panel-unit .calculator-grid {
  gap: 12px;
}

#panel-unit .calculator-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 21px;
  border: 1px solid var(--unit-line);
  border-radius: 9px;
  background: #fff;
  box-shadow: 0 3px 12px rgba(17, 55, 92, .035);
}

#panel-unit .calculator-card h3 {
  margin: 0 0 20px;
  color: var(--unit-ink);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.02em;
}

#panel-unit .field > span {
  margin-bottom: 7px;
  color: #41566e;
  font-size: 12px;
  font-weight: 700;
}

#panel-unit .field input,
#panel-unit .field select {
  min-height: 44px;
  padding: 9px 11px;
  border: 1px solid #bfcedd;
  border-radius: 6px;
  background: #fff;
  color: var(--unit-ink);
  font: inherit;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

#panel-unit .field input:hover,
#panel-unit .field select:hover { border-color: #8aa9c8; }

#panel-unit .field input:focus-visible,
#panel-unit .field select:focus-visible {
  outline: 2px solid var(--unit-accent);
  outline-offset: 2px;
}

#panel-unit .conversion-direction { margin-bottom: 18px; }
#panel-unit .conversion-inputs { gap: 9px; }
#panel-unit .conversion-inputs[hidden] { display: none; }

#panel-unit .result-box {
  margin-top: 22px;
  padding: 18px 17px 16px;
  border: 0;
  border-left: 3px solid var(--unit-accent);
  border-radius: 0 6px 6px 0;
  background: #f1f6fb;
  overflow-wrap: anywhere;
}

#panel-unit .result-box > span {
  color: #4a617a;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .025em;
}

#panel-unit .result-box strong {
  margin-top: 8px;
  color: var(--unit-ink);
  font-size: clamp(22px, 2.2vw, 27px);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

#panel-unit .result-box small {
  display: block;
  margin-top: 8px;
  color: #405a75;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

#panel-unit .formula-note {
  margin-top: 18px;
  color: #52677f;
  font-size: 11px;
  line-height: 1.6;
}

@media (max-width: 1100px) {
  .tools-layout #panel-unit .calculator-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  #panel-unit .tool-panel-heading { align-items: flex-start; gap: 12px; }
  #panel-unit .calculator-card { padding: 18px; }
}