.nim-board {
  display: flex;
  flex-direction: column;
  gap: 1em;
  min-width: min(320px, 78vw);
}

.nim-pile {
  display: flex;
  gap: 0.4em;
  flex-wrap: wrap;
  padding: 0.6em;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.2);
  box-shadow: var(--shadow-inset-deep);
}

.nim-stick {
  width: 12px;
  height: 46px;
  border-radius: 3px;
  border: none;
  cursor: pointer;
  background: linear-gradient(180deg, var(--wood-400), var(--wood-700));
  box-shadow: 0 2px 3px rgba(0, 0, 0, 0.4);
}

.nim-stick:hover:not(:disabled) {
  background: linear-gradient(180deg, var(--brass-500), var(--brass-700));
}

.nim-stick:disabled {
  cursor: default;
  opacity: 0.4;
}