.preset-button { min-height: 2.75rem; }
.mode-panel, .comparison-panel { background: var(--bs-tertiary-bg); border: 1px solid var(--bs-border-color); border-radius: .75rem; padding: 1rem; }
.item-price-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.key-result { border: 2px solid rgba(var(--bs-primary-rgb), .28); }
.comparison-answer { background: #fff; border-radius: .75rem; padding: 1rem; }
@media (max-width: 575.98px) {
  .calculator-card .card-body { padding: 1rem !important; }
  .item-price-grid { grid-template-columns: 1fr; }
}