@media (max-width: 834px) {
  .panel-half {
    grid-column: span 12;
  }
  .result-grid {
    grid-template-columns: 1fr;
  }
  .identity-panel {
    grid-template-columns: 1fr;
  }
  .lab-panel {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(var(--maxw), calc(100% - 24px));
  }
  .hero-stage {
    padding: 12px 0 20px;
    min-height: auto;
  }
  .hero-topline {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
  }
  .hero-display {
    font-size: 48px;
  }
  .hero-subtitle {
    margin-top: 14px;
    font-size: 18px;
  }
  .brand-eyebrow {
    font-size: 18px;
  }
  .panel {
    padding: 20px;
    border-radius: 24px;
  }
  .panel-heading h3,
  .featured-title,
  .identity-value,
  .result-badge strong {
    font-size: 24px;
  }
  .identity-quote {
    font-size: 20px;
  }
}