.calculator-card { background: white; border-radius: 1rem; }
.result-block h4 { color: #0d6efd; }
.d-flex .flex-fill { flex: 1 1 0px; text-align: center; white-space: nowrap; }
@media (max-width: 576px) { .d-flex .flex-fill { white-space: normal; font-size: 0.9rem; } }