.captcha-card {
  width: 300px;
  background: #fff;
  border: 1px solid #cfcfcf;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: #fff;
  padding: 2px;
}

.tile {
  position: relative;
  aspect-ratio: 1 / 1;
  border: none;
  cursor: pointer;
  overflow: hidden;
  padding: 0;
  background: #f9f0f0;
  user-select: none;
}

.tile.disabled {
  pointer-events: none;
}

.tile.selected::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(40, 0, 0, 0.38);
  box-shadow: inset 0 0 0 4px #990000;
  z-index: 2;
}



@media (max-width: 899px) {
  .captcha-card {
    max-width: 180px;
  }
}