#nrp-calc { max-width: 480px; margin: 2em auto; font-family: 'Segoe UI', Arial, sans-serif; }
.nrp-card { background: #f7faf9; border-radius: 12px; box-shadow: 0 2px 8px #0002; padding: 0.95em 1.2em; margin-bottom: 1.2em; }
.nrp-input-row { display: flex; align-items: center; margin-bottom: 12px; }
.nrp-input-row label { min-width: 120px; }
.nrp-input-row input, .nrp-input-row select { flex:1; font-size: 1em; padding: 7px 6px; border-radius: 8px; border:1px solid #ddd; background: #f7f7fa; }
.nrp-btn { background: #289672; color: #fff; font-size: 1.1em; padding: 12px 0; border:none; border-radius: 10px; cursor:pointer; font-weight: bold; width:100%; margin-top: 10px; }
.nrp-btn:hover { background: #186d4a; }
@media (max-width: 600px) {
  #nrp-calc { max-width:98vw; }
  .nrp-card { padding: 0.78em 0.45em; }
}