.memory-page {
  width: min(980px, calc(100% - 40px));
  margin: 24px auto;
}

.memory-panel {
  background: hotpink;
  border: 3px dotted #fff;
  border-radius: 12px;
  padding: 18px;
  text-align: left;
}

.memory-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.memory-panel-header h2 {
  margin: 0;
}

.memory-back-link {
  border: 2px solid #111;
  border-radius: 8px;
  padding: 8px 14px;
  background: #fff;
  color: #111;
  font-weight: 700;
  text-decoration: none;
}

.memory-help,
.memory-status,
.memory-win-message {
  margin: 8px 0 10px;
  color: #111;
  font-weight: 700;
}

.memory-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.memory-reset-button {
  border: 2px solid #111;
  border-radius: 8px;
  padding: 8px 14px;
  background: #fff;
  color: #111;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.memory-win-message {
  color: #fff;
  background: #1e8f42;
  border: 2px solid #fff;
  border-radius: 8px;
  padding: 8px 10px;
}

.memory-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(4, minmax(88px, 1fr));
}

.memory-card {
  aspect-ratio: 1 / 1;
  border: none;
  padding: 0;
  background: transparent;
  cursor: pointer;
  perspective: 900px;
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  overflow: hidden;
}

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

.memory-card-inner {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  border-radius: 10px;
  transition: opacity 0.18s ease;
}

.memory-face {
  position: absolute;
  inset: 0;
  border-radius: 10px;
  border: 2px solid #111;
  display: grid;
  place-items: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  font-weight: 800;
  padding: 8px;
  text-align: center;
  transition: opacity 0.18s ease;
}

.memory-face.front {
  background: #f79ac4;
  color: #ffffff;
  font-size: 2rem;
  opacity: 1;
  visibility: visible;
}

.memory-face.back {
  background: #fff;
  padding: 0;
  opacity: 0;
  visibility: hidden;
}

.memory-card.is-flipped .memory-face.front,
.memory-card.is-matched .memory-face.front {
  opacity: 0;
  visibility: hidden;
}

.memory-card.is-flipped .memory-face.back,
.memory-card.is-matched .memory-face.back {
  opacity: 1;
  visibility: visible;
}

.memory-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

@media (max-width: 700px) {
  .memory-page {
    width: min(620px, calc(100% - 20px));
  }

  .memory-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .memory-grid {
    grid-template-columns: repeat(3, minmax(80px, 1fr));
  }
}