.memory-shell {
  margin-top: 24px;
  padding: 24px;
  background: linear-gradient(
    145deg,
    rgba(17, 27, 50, 0.97),
    rgba(7, 13, 28, 0.98)
  );
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 26px;
  box-shadow: 0 28px 85px rgba(0, 0, 0, 0.28);
}
.memory-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}
.memory-title-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}
.memory-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(
    135deg,
    rgba(91, 124, 255, 0.24),
    rgba(244, 114, 182, 0.14)
  );
  border: 1px solid rgba(91, 124, 255, 0.28);
  color: #8fa7ff;
  font-size: 1.25rem;
}
.memory-head h3 {
  margin: 0;
  color: #fff;
  font-size: 1.55rem;
}
.memory-head p {
  margin: 4px 0 0;
  color: #8e9db2;
  font-size: 0.82rem;
}
.memory-meta {
  display: flex;
  gap: 8px;
}
.memory-pill {
  min-width: 74px;
  padding: 9px 11px;
  text-align: center;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
}
.memory-pill strong {
  display: block;
  color: #fff;
  font-size: 1.05rem;
}
.memory-pill span {
  display: block;
  color: #78879c;
  font-size: 0.59rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.memory-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(90px, 1fr));
  gap: 12px;
  perspective: 900px;
}
.memory-card {
  position: relative;
  min-height: 118px;
  border: 0;
  background: transparent;
  cursor: pointer;
  transform-style: preserve-3d;
  padding: 0;
}
.memory-card.flipped,
.memory-card.matched {
  transform: none;
}
.memory-face {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  backface-visibility: hidden;
  border-radius: 17px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.2, 0.75, 0.2, 1);
}
.memory-back {
  transform: rotateY(0deg);
  background:
    radial-gradient(
      circle at 50% 20%,
      rgba(91, 124, 255, 0.18),
      transparent 55%
    ),
    #111a30;
  color: #6f86df;
}
.memory-back::before {
  content: "</>";
  font: 900 1.25rem monospace;
}
.memory-back::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px dashed rgba(91, 124, 255, 0.16);
  border-radius: 12px;
}
.memory-front {
  transform: rotateY(180deg);
  background: linear-gradient(145deg, #18243f, #0d1629);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
}
.memory-card.flipped .memory-back,
.memory-card.matched .memory-back {
  transform: rotateY(-180deg);
}
.memory-card.flipped .memory-front,
.memory-card.matched .memory-front {
  transform: rotateY(0deg);
}
.memory-front i {
  font-size: 1.55rem;
  color: var(--memory-color, #ffb84d);
  filter: drop-shadow(
    0 0 11px color-mix(in srgb, var(--memory-color, #ffb84d), transparent 45%)
  );
}
.memory-front span {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.memory-card.matched .memory-front {
  border-color: rgba(66, 232, 164, 0.45);
  box-shadow:
    inset 0 0 24px rgba(66, 232, 164, 0.08),
    0 0 22px rgba(66, 232, 164, 0.08);
}
.memory-card.matched .memory-front::after {
  content: "✓";
  position: absolute;
  right: 9px;
  top: 8px;
  color: #42e8a4;
  font-weight: 900;
}
.memory-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-top: 18px;
}
.memory-message {
  color: #91a0b5;
  font-size: 0.8rem;
}
.memory-reset {
  min-height: 43px;
  padding: 0 15px;
  border: 1px solid rgba(91, 124, 255, 0.28);
  border-radius: 12px;
  background: rgba(91, 124, 255, 0.1);
  color: #b8c5ff;
  font:
    800 0.72rem Manrope,
    sans-serif;
  cursor: pointer;
  transition: 0.2s;
}
.memory-reset:hover {
  background: #5b7cff;
  color: #fff;
  transform: translateY(-2px);
}
.memory-win {
  animation: memoryWin 0.8s ease;
}
@keyframes memoryWin {
  30% {
    box-shadow:
      0 0 0 4px rgba(66, 232, 164, 0.14),
      0 30px 100px rgba(66, 232, 164, 0.12);
  }
  70% {
    transform: translateY(-5px);
  }
}
@media (max-width: 700px) {
  .memory-head {
    align-items: flex-start;
    flex-direction: column;
  }
  .memory-meta {
    width: 100%;
  }
  .memory-pill {
    flex: 1;
  }
  .memory-board {
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
  }
  .memory-card {
    min-height: 92px;
  }
  .memory-front i {
    font-size: 1.3rem;
  }
  .memory-front span {
    font-size: 0.62rem;
  }
}
@media (max-width: 440px) {
  .memory-shell {
    padding: 14px;
  }
  .memory-board {
    grid-template-columns: repeat(3, 1fr);
  }
  .memory-card {
    min-height: 88px;
  }
  .memory-actions {
    align-items: flex-start;
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  .memory-card,
  .memory-face {
    transition: none;
  }
  .memory-win {
    animation: none;
  }
}