.bpp-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 100%;
}

.bpp-grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 3px;
  width: min(420px, 92vw);
  aspect-ratio: 9 / 10;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 3px var(--color-border);
  padding: 6px;
}

.bpp-cell {
  background: transparent;
  border: 2px solid transparent;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
}

.bpp-cell--cursor {
  border-color: rgba(79, 216, 224, 0.5);
}

.bpp-bubble {
  width: 80%;
  height: 80%;
  border-radius: 50%;
  box-shadow: inset -3px -3px 6px rgba(0, 0, 0, 0.25), inset 3px 3px 6px rgba(255, 255, 255, 0.35);
  transition: transform 0.15s ease;
}

.bpp-cell:hover .bpp-bubble {
  transform: scale(1.1);
}

@media (max-width: 480px) {
  .bpp-grid { gap: 2px; padding: 4px; }
}