.game-root[data-game="pairs"] { min-height: 32rem; }

.pairs-num {
  display: inline-block;
  min-width: 3ch;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.pairs-new {
  min-width: 8.6rem;
  white-space: nowrap;
}

.pairs-stage {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  user-select: none;
}

.pairs-status {
  width: min(100%, 28rem);
  min-height: 4.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.12rem;
  text-align: center;
}

.pairs-line,
.pairs-note {
  margin: 0;
  line-height: 1.35;
  min-height: 1.35em;
}

.pairs-line { color: #f4f0e8; }

.pairs-note {
  color: #d5ddd6;
  font-size: 0.95rem;
}

.pairs-note.is-good { color: #e0b948; }

.pairs-board {
  --cols: 4;
  --gap: clamp(0.4rem, 1.2cqw, 0.7rem);
  --card-max: 5.5rem;
  --card-min: 2.5rem;
  --card-w: clamp(
    var(--card-min),
    calc((100cqw - 12px - var(--gap) * (var(--cols) - 1)) / var(--cols)),
    var(--card-max)
  );
  --card-h: calc(var(--card-w) * 1.452);
  --radius: calc(var(--card-w) * 0.07);
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--card-w));
  gap: var(--gap);
  justify-content: center;
  width: 100%;
  padding: 4px;
  box-sizing: border-box;
}

.pairs-cell {
  appearance: none;
  -webkit-appearance: none;
  display: block;
  position: relative;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  width: var(--card-w);
  height: var(--card-h);
  border-radius: var(--radius);
  color: inherit;
  font: inherit;
  touch-action: manipulation;
  cursor: pointer;
}

.pairs-cell:disabled {
  opacity: 1;
  cursor: default;
}

.pairs-cell:focus-visible {
  outline: none;
}

.pairs-cell:focus-visible .playing-card {
  outline: 2px solid #f0cf6a;
  outline-offset: 2px;
}

.pairs-cell .playing-card {
  width: 100%;
  height: 100%;
  cursor: inherit;
}

.pairs-cell.is-current { z-index: 2; }

.pairs-board .playing-card.is-picked {
  box-shadow: 0 0 0 2px #e0b948, 0 3px 10px rgba(0, 0, 0, 0.35);
}

.pairs-board .playing-card.is-flip {
  animation: pairs-flip 280ms ease-out;
}

@keyframes pairs-flip {
  from { transform: scaleX(0.08); }
  to { transform: scaleX(1); }
}

@media (prefers-reduced-motion: reduce) {
  .pairs-board .playing-card.is-flip { animation: none; }
}

@media (max-width: 640px) {
  .pairs-new { min-width: 0; }
}