#kinetic-calculator {
  max-width: 680px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #0d1f5c;
}

.krc-subtitle {
  font-size: 15px;
  color: #555;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.krc-section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #00c4a7;
  margin-bottom: 10px;
  border-bottom: 1px solid #e8edf5;
  padding-bottom: 6px;
}

.krc-card {
  background: #fff;
  border: 1px solid #dde3ef;
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  margin-bottom: 12px;
}

.krc-room-name {
  font-size: 15px;
  font-weight: 700;
  color: #0d1f5c;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 4px;
}

.krc-badge {
  display: inline-block;
  font-size: 11px;
  color: #5a6a99;
  background: #eef1f9;
  border-radius: 20px;
  padding: 3px 10px;
  margin-bottom: 12px;
}

.krc-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.krc-control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.krc-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #7a8ab0;
}

.krc-control-group select {
  font-size: 13px;
  padding: 8px 10px;
  border: 1px solid #c8d0e5;
  border-radius: 8px;
  background: #f8f9fc;
  min-width: 200px;
  color: #0d1f5c;
  cursor: pointer;
  font-weight: 500;
}

.krc-control-group select:focus {
  outline: none;
  border-color: #0d1f5c;
  background: #fff;
}

.krc-price-line {
  font-size: 13px;
  color: #7a8ab0;
  margin: 10px 0 0;
}

.krc-price-line strong {
  color: #0d1f5c;
  font-weight: 700;
}

.krc-divider {
  border: none;
  border-top: 1px solid #dde3ef;
  margin: 1.5rem 0;
}

.krc-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin-bottom: 1.25rem;
}

.krc-metric {
  background: #eef1f9;
  border-radius: 10px;
  padding: 1rem;
}

.krc-metric-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #7a8ab0;
  margin: 0 0 6px;
}

.krc-metric-value {
  font-size: 22px;
  font-weight: 800;
  color: #0d1f5c;
  margin: 0;
}

.krc-breakdown {
  background: #eef1f9;
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.krc-breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: #5a6a99;
  padding: 4px 0;
}

.krc-breakdown-total {
  font-size: 14px;
  font-weight: 700;
  color: #0d1f5c;
  border-top: 1px solid #c8d0e5;
  margin-top: 6px;
  padding-top: 8px;
}

.krc-error {
  background: #fff0f0;
  border: 1px solid #fcc;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: #c00;
  margin-bottom: 12px;
}

.krc-btn {
  width: 100%;
  padding: 14px;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: #0d1f5c;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  margin-bottom: 1rem;
}

.krc-btn:hover:not(:disabled) {
  background: #162a7a;
}

.krc-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.krc-note {
  font-size: 12px;
  color: #9aa3bf;
  line-height: 1.6;
}

@media (max-width: 480px) {
  .krc-control-group select {
    min-width: 100%;
  }
  .krc-controls {
    flex-direction: column;
  }
}