.biz-calculator-card {
  max-width: 800px;
  margin: 40px auto;
  background: white;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.biz-header { padding: 28px; text-align: center; color: white; }
.biz-body { padding: 30px; }
.biz-row { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 20px; }
.biz-col { flex: 1; min-width: 200px; }
.biz-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: #374151; }
.biz-input { width: 100%; padding: 12px; border: 1px solid #d1d5db; border-radius: 10px; font-size: 16px; }
.biz-input:focus { outline: none; border-color: #3b82f6; box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
.biz-actions { display: flex; gap: 12px; margin-top: 20px; }
.biz-btn {
  flex: 1; padding: 12px; border: none; border-radius: 10px; font-weight: 600; cursor: pointer;
}
.biz-btn--primary { background: #2563eb; color: white; }
.biz-btn--reset { background: #f3f4f6; color: #4b5563; }
.biz-btn--pdf { background: #059669; color: white; }
.biz-results { margin-top: 30px; padding: 24px; background: #f8fafc; border-radius: 16px; display: none; }
.biz-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 16px; }
.biz-item { text-align: center; padding: 14px; background: white; border-radius: 12px; box-shadow: 0 2px 6px rgba(0,0,0,0.05); }
.biz-value { font-size: 18px; font-weight: 700; margin-top: 6px; color: #059669; }
.biz-insight {
  background: #eff6ff; border-left: 4px solid #3b82f6; padding: 12px;
  border-radius: 0 8px 8px 0; margin-top: 20px; font-size: 14px; color: #1e40af;
}
@media (max-width: 600px) {
  .biz-actions { flex-direction: column; }
}