/* ===== Mobile polish ===== */
@media (max-width: 699px) {
  /* Keep stacked layout */
  .krn-layout {
    grid-template-columns: 1fr;
  }

  /* Smaller feed container on mobile */
  .feed {
    max-height: 48vh;
    overflow: auto;
  }

  /* Full-width, centered submit button on mobile */
  .form-col .card button[type="submit"],
  .form-col .card .btn {
    width: 100%;
    display: inline-block;
    text-align: center;
  }
}