.fp-schulte {
  width: min(100%, 360px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  border: 2px solid #93c5fd;
  background: #fff;
  aspect-ratio: 1;
  user-select: none;
  touch-action: manipulation;
}

.fp-schulte__cell {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #93c5fd;
  background: #fff;
  font-family: system-ui, sans-serif;
  font-size: clamp(1.1rem, 4.5vw, 1.55rem);
  font-weight: 700;
  cursor: pointer;
  min-height: 0;
}

.fp-schulte__cell.is-wrong {
  animation: fp-schulte-flash 0.35s ease;
}

.fp-schulte__cell.is-done {
  opacity: 0.35;
}

.fp-schulte-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  max-width: 360px;
  margin: 0 auto 0.85rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

@keyframes fp-schulte-flash {
  0%, 100% { background: #fff; }
  40% { background: #fecaca; }
}

@media (prefers-reduced-motion: reduce) {
  .fp-schulte__cell.is-wrong { animation: none; background: #fecaca; }
}