/* Use the stable, small viewport: browser bars may retract during scrolling,
   but must not resize the hero and recenter the text under the visitor's finger.
   Legacy vh remains the fallback; desktop svh still follows window resizing. */
.hero {
  min-height:calc(100vh - var(--nav-height, 69px));
  min-height:calc(100svh - var(--nav-height, 69px));
  display:grid;
  align-items:center;
}

@media print {
  .hero { min-height:0; display:block; }
}