.project-article .project-actions { margin: 0 0 .6rem; }
.project-article .project-actions + .demo-note { margin: 0 0 1.25rem; }
.calculator-result { display: none; }
@media (max-width: 499px) {
  .project-page .site-header { margin-top: 1.5rem; }
  .project-page .name { padding-top: 3.25rem; background-size: auto 2.5rem; }
  .project-page .header-rule { margin: 6px 0 1.25rem; }
  /* The original two-column screenshot stays intact; show its input pane at a readable size. */
  .project-calculator .screenshot-link { width: min(100%, 350px); aspect-ratio: 350/446; margin-inline: auto; overflow: hidden; }
  .project-calculator img { width: 302.286%; max-width: none; }
  .project-calculator .calculator-result { display: block; margin-top: 16px; aspect-ratio: 480/446; }
  .project-calculator .calculator-result img { width: 220.416667%; margin-left: -75.625%; }
}