/* Picture choice — four drawn solids, the letter is the answer.
   Shared by work, sheet, print, exam, exam-print and revision. */
.pick-pictures {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 4px 0 14px;
  max-width: 640px;
}
.pick-tile {
  position: relative;
  display: block;
  width: 100%;
  margin: 0;
  padding: 22px 8px 8px;
  background: #fff;
  border: 1.5px solid #d8d2c4;
  border-radius: 10px;
  color: inherit;
  font: inherit;
  text-align: center;
  cursor: default;
  break-inside: avoid;
}
button.pick-tile { cursor: pointer; }
button.pick-tile:hover { border-color: #9fb3a3; }
button.pick-tile:focus-visible { outline: 2px solid #1b5e4a; outline-offset: 2px; }
.pick-tile.is-picked,
.pick-tile.on {
  border: 2.5px solid #1b5e4a;
  background: #e8f2ec;
}
.pick-tile .pick-key {
  position: absolute;
  top: 6px;
  left: 8px;
  font-weight: 800;
  font-size: 15px;
  line-height: 1;
  color: #23301f;
}
.pick-tile .sum-fig {
  display: block;
  width: 100%;
  height: auto;
  max-height: 96px;
}
/* On a marked or reviewed tile the name comes back — the vocabulary, after the recognition. */
.pick-tile .pick-name {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: #6b7a66;
}
@media (max-width: 520px) {
  .pick-pictures { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media print {
  .pick-pictures { max-width: 560px; gap: 8px; }
  .pick-tile { border-color: #999; padding-top: 20px; }
  .pick-tile .sum-fig { max-height: 80px; }
}