/* Memory Match */

.memory-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.memory-status {
  margin: 0;
  width: min(100%, 560px);
  font-weight: 800;
  color: var(--ink-soft);
  text-align: center;
}

.memory-stage {
  --memory-cols: 4;
  --memory-rows: 3;
  width: min(100%, 560px);
  display: grid;
  grid-template-columns: repeat(var(--memory-cols), minmax(0, 1fr));
  gap: clamp(8px, 2vw, 12px);
  /* Allow taps/clicks — do not steal gestures from card buttons */
  touch-action: manipulation;
  overscroll-behavior: none;
  outline: none;
}

.memory-card {
  position: relative;
  aspect-ratio: 1;
  min-height: 56px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.memory-card:disabled {
  cursor: default;
}

.memory-card-inner {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  min-height: 56px;
}

.memory-card-face {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: 14px;
  box-shadow: var(--shadow);
  font-weight: 800;
  transition:
    opacity 0.22s ease,
    transform 0.22s ease,
    box-shadow 0.22s ease;
  /* Avoid 3D backface flips — they often fail to paint on mobile Safari */
  backface-visibility: visible;
  -webkit-backface-visibility: visible;
}

.memory-card-back {
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.22), transparent 45%),
    linear-gradient(145deg, #2aa89a, #14665d 55%, #0f524a);
  color: #fff;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 6vw, 2.2rem);
  font-weight: 800;
  border: 2px solid rgba(255, 255, 255, 0.45);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
  opacity: 1;
  transform: scale(1);
  z-index: 2;
}

.memory-card-back::after {
  content: "tap";
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-body);
  font-size: clamp(0.55rem, 2.2vw, 0.7rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: none;
}

.memory-card-front {
  background: var(--floor);
  color: var(--ink);
  font-size: clamp(1.8rem, 7vw, 3rem);
  border: 2px solid rgba(31, 138, 126, 0.2);
  opacity: 0;
  transform: scale(0.92);
  pointer-events: none;
  z-index: 1;
}

.memory-card-front--glyph {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 6vw, 2.6rem);
  color: var(--teal-deep);
}

/* Face-up: show front, hide back */
.memory-card.is-flipped .memory-card-back {
  opacity: 0;
  transform: scale(1.04);
  pointer-events: none;
  z-index: 1;
}

.memory-card.is-flipped .memory-card-front {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
  z-index: 2;
  animation: memory-pop 0.22s ease;
}

.memory-card.is-matched .memory-card-front {
  border-color: #6bcb77;
  box-shadow: 0 0 0 3px rgba(107, 203, 119, 0.35), var(--shadow);
  opacity: 0.92;
  animation: none;
}

.memory-check {
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 0.85rem;
  color: #2f9e44;
  opacity: 0;
}

.memory-card.is-matched .memory-check {
  opacity: 1;
}

.memory-card.is-focus:focus-visible,
.memory-card:focus-visible {
  outline: 3px solid rgba(31, 138, 126, 0.55);
  outline-offset: 2px;
}

.memory-card:not(.is-flipped):not(:disabled):active .memory-card-back {
  transform: scale(0.96);
}

@keyframes memory-pop {
  from { transform: scale(0.9); opacity: 0.6; }
  60% { transform: scale(1.05); opacity: 1; }
  to { transform: scale(1); opacity: 1; }
}

.memory-float {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, 8px);
  margin: 0;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(107, 203, 119, 0.95);
  color: #14665d;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  pointer-events: none;
  opacity: 0;
  z-index: 6;
}

.memory-float.show {
  animation: memory-float-up 0.9s ease forwards;
}

@keyframes memory-float-up {
  0% { opacity: 0; transform: translate(-50%, 12px); }
  20% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -28px); }
}

.memory-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  justify-content: center;
  font-weight: 800;
  color: var(--ink-soft);
}

.memory-live {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.memory-print-grid {
  display: grid;
  grid-template-columns: repeat(var(--memory-cols, 4), minmax(0, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.memory-print-card {
  aspect-ratio: 1;
  border: 2px solid #243037;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
}

.memory-print-card-key {
  flex-direction: column;
  gap: 4px;
}

.memory-print-num {
  font-size: 0.75rem;
  color: #4a5c66;
}

.memory-print-face {
  font-size: 1.6rem;
}

@media (pointer: coarse) {
  .memory-card {
    min-height: 64px;
  }

  .memory-card-inner {
    min-height: 64px;
  }
}

@media (max-width: 420px) {
  .memory-card-back::after {
    bottom: 5px;
    font-size: 0.5rem;
  }
}

@media print {
  .memory-print-grid {
    break-inside: avoid;
  }
}