.nrs-container { max-width: 640px; margin: 0 auto; }
.nrs-intro-box {
  background: #fff; border: 2px solid #e5e7eb; border-radius: 12px;
  padding: 32px 28px; text-align: center; margin: 20px 0 28px;
}
.nrs-intro-box h2 { margin-top: 0; font-size: 1.4rem; color: #1e293b; }
.nrs-intro-box p { color: #475569; line-height: 1.65; }
.nrs-start-btn {
  display: inline-block; background: #16a34a; color: #fff; border: none;
  border-radius: 6px; padding: 14px 36px; font-size: 1.05rem; font-weight: 700;
  cursor: pointer; margin-top: 12px;
}
.nrs-start-btn:hover { background: #15803d; }
.nrs-step { display: none; }
.nrs-step.active { display: block; }
.nrs-form-group { margin-bottom: 18px; }
.nrs-form-group > label { display: block; font-weight: 600; font-size: 0.95rem; color: #1e293b; margin-bottom: 6px; }
.nrs-help { font-size: 0.8rem; color: #6b7280; margin-bottom: 6px; line-height: 1.45; }
.nrs-form-group input[type="number"], .nrs-form-group select {
  width: 100%; padding: 10px 12px; border: 1.5px solid #d1d5db; border-radius: 6px;
  font-size: 1rem; color: #1e293b; background: #fff; box-sizing: border-box;
}
.nrs-btn-row { display: flex; gap: 10px; margin-top: 24px; }
.nrs-btn-primary {
  flex: 1; background: #16a34a; color: #fff; border: none; border-radius: 6px;
  padding: 12px 20px; font-size: 1rem; font-weight: 700; cursor: pointer;
}
.nrs-btn-primary:hover { background: #15803d; }
.nrs-btn-secondary {
  background: #fff; color: #374151; border: 1.5px solid #d1d5db; border-radius: 6px;
  padding: 12px 20px; font-size: 1rem; cursor: pointer;
}
.nrs-btn-secondary:hover { background: #f9fafb; }
.nrs-result-hero {
  text-align: center; padding: 24px 20px; background: #f0fdf4; border: 2px solid #16a34a;
  border-radius: 12px; margin-bottom: 20px;
}
.nrs-result-hero.nrs-result-nr { background: #fef2f2; border-color: #dc2626; }
.nrs-result-hero.nrs-result-rnor { background: #fffbeb; border-color: #d97706; }
#nrs-result-status { font-size: 1.6rem; font-weight: 800; color: #1e293b; }
.nrs-reasoning-list { margin: 16px 0; padding-left: 20px; }
.nrs-reasoning-list li { margin-bottom: 10px; line-height: 1.55; color: #374151; font-size: 0.92rem; }
.nrs-terminal-cta {
  display: block; text-align: center; background: #16a34a; color: #fff !important;
  border-radius: 8px; padding: 14px; text-decoration: none; font-weight: 700; margin: 20px 0 8px;
}
.nrs-terminal-cta:hover { background: #15803d; }
.nrs-recalc-link {
  font-size: 0.85rem; color: #6b7280; text-decoration: underline; cursor: pointer;
  background: none; border: none; padding: 0;
}
.nrs-recalc-link:hover { background: none; color: #374151; }
.nrs-mandatory-disclaimer { font-size: 0.82rem; color: #6b7280; margin-top: 20px; line-height: 1.5; }