.word-shuffle-active {
  overflow-x: hidden;
}

.word-shuffle-screen {
  width: min(100% - 28px, 980px);
  margin: 0 auto;
  padding: 20px 0 42px;
  color: #17202c;
}

.word-shuffle-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.word-shuffle-title h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 0.95;
  font-weight: 950;
}

.word-shuffle-title p {
  margin: 8px 0 0;
  color: #64748b;
  font-weight: 800;
}

.word-shuffle-back,
.word-shuffle-restart {
  border: 0;
  border-radius: 999px;
  background: #fff;
  color: #17202c;
  padding: 12px 18px;
  font-weight: 900;
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.08);
  cursor: pointer;
}

.word-shuffle-hud {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.word-shuffle-stat {
  padding: 12px 14px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.07);
}

.word-shuffle-stat span {
  display: block;
  color: #64748b;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.word-shuffle-stat strong {
  display: block;
  margin-top: 4px;
  font-size: 24px;
  font-weight: 950;
}

.word-shuffle-timer {
  --timer-color: #00baff;
  color: var(--timer-color);
}

.word-shuffle-timer.is-warm {
  --timer-color: #f59e0b;
}

.word-shuffle-timer.is-hot {
  --timer-color: #ef4444;
  animation: wordShuffleUrgent 0.5s ease-in-out infinite alternate;
}

.word-shuffle-stage {
  border-radius: 32px;
  background: linear-gradient(145deg, #edf6ff, #ffffff);
  box-shadow: 0 22px 52px rgba(15, 23, 42, 0.1);
  padding: 18px;
}

.word-shuffle-slots {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 16px;
}

.word-shuffle-slot {
  width: clamp(38px, 7vw, 58px);
  height: clamp(46px, 8vw, 66px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: #fff;
  color: #17202c;
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 950;
  box-shadow: inset 0 0 0 3px rgba(0, 186, 255, 0.15), 0 10px 24px rgba(15, 23, 42, 0.06);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.word-shuffle-slot.is-filled {
  background: #dcfce7;
  box-shadow: inset 0 0 0 3px rgba(34, 197, 94, 0.4), 0 12px 28px rgba(34, 197, 94, 0.16);
  animation: wordShuffleSnap 0.24s ease;
}

.word-shuffle-slot.is-magnetic {
  transform: scale(1.06);
  box-shadow: inset 0 0 0 3px rgba(0, 186, 255, 0.55), 0 14px 34px rgba(0, 186, 255, 0.16);
}

.word-shuffle-table {
  position: relative;
  min-height: clamp(260px, 42vh, 380px);
  border-radius: 30px;
  overflow: hidden;
  touch-action: none;
  background:
    radial-gradient(circle at 18% 24%, rgba(0, 186, 255, 0.16), transparent 32%),
    radial-gradient(circle at 80% 72%, rgba(14, 165, 233, 0.14), transparent 36%),
    linear-gradient(145deg, #c7f0ff, #f5fbff 44%, #e8f6ff);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.8);
}

.word-shuffle-letter {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: clamp(46px, 8vw, 68px);
  height: clamp(48px, 8vw, 70px);
  transform: translate(-50%, -50%) rotate(var(--rot));
  border: 0;
  border-radius: 18px;
  background: linear-gradient(145deg, #ff7a1a, #ef4444);
  color: #fff;
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 950;
  box-shadow: 0 16px 26px rgba(239, 68, 68, 0.24), inset 0 -5px 0 rgba(0, 0, 0, 0.1);
  cursor: grab;
  user-select: none;
  touch-action: none;
  transition: box-shadow 0.16s ease, filter 0.16s ease;
  will-change: transform;
}

.word-shuffle-letter:nth-child(3n + 1) {
  background: linear-gradient(145deg, #00baff, #2563eb);
  box-shadow: 0 16px 26px rgba(37, 99, 235, 0.24), inset 0 -5px 0 rgba(0, 0, 0, 0.1);
}

.word-shuffle-letter:nth-child(3n + 2) {
  background: linear-gradient(145deg, #22c55e, #16a34a);
  box-shadow: 0 16px 26px rgba(22, 163, 74, 0.24), inset 0 -5px 0 rgba(0, 0, 0, 0.1);
}

.word-shuffle-letter.is-dragging {
  z-index: 30;
  cursor: grabbing;
  filter: saturate(1.15);
  box-shadow: 0 24px 44px rgba(15, 23, 42, 0.24), inset 0 -5px 0 rgba(0, 0, 0, 0.08);
}

.word-shuffle-letter.is-wrong {
  animation: wordShuffleWrong 0.32s ease;
}

.word-shuffle-letter.is-used {
  opacity: 0;
  pointer-events: none;
}

.word-shuffle-learn-card {
  min-height: 96px;
  margin-top: 16px;
  padding: 16px;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.word-shuffle-learn-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.word-shuffle-learn-card h3 {
  margin: 0;
  font-size: 28px;
  font-weight: 950;
  text-transform: uppercase;
}

.word-shuffle-learn-card p {
  margin: 6px 0 0;
  color: #475569;
  font-weight: 800;
}

.word-shuffle-learn-card em {
  display: block;
  margin-top: 8px;
  color: #64748b;
  font-style: normal;
  font-weight: 700;
}

.word-shuffle-stage.is-solved .word-shuffle-slots {
  animation: wordShuffleSolved 0.55s ease;
}

.word-shuffle-empty,
.word-shuffle-game-over {
  max-width: 560px;
  margin: 40px auto;
  padding: 28px;
  border-radius: 28px;
  background: #fff;
  text-align: center;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
  font-weight: 900;
}

.word-shuffle-game-over h2 {
  margin: 0 0 12px;
  font-size: 42px;
}

.word-shuffle-game-over p {
  margin: 8px 0;
  color: #64748b;
}

@keyframes wordShuffleSnap {
  0% { transform: scale(0.86); }
  60% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

@keyframes wordShuffleWrong {
  0%, 100% { transform: translate(-50%, -50%) rotate(var(--rot)); }
  25% { transform: translate(calc(-50% - 8px), -50%) rotate(var(--rot)); }
  75% { transform: translate(calc(-50% + 8px), -50%) rotate(var(--rot)); }
}

@keyframes wordShuffleSolved {
  0% { filter: none; }
  40% { filter: drop-shadow(0 0 18px rgba(34, 197, 94, 0.65)); transform: scale(1.02); }
  100% { filter: none; transform: scale(1); }
}

@keyframes wordShuffleUrgent {
  from { transform: translateY(0) scale(1); }
  to { transform: translateY(-1px) scale(1.03); }
}

@media (max-width: 700px) {
  .word-shuffle-screen {
    width: min(100% - 18px, 520px);
    padding-top: 10px;
  }

  .word-shuffle-top {
    align-items: flex-start;
  }

  .word-shuffle-hud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .word-shuffle-stage {
    padding: 12px;
    border-radius: 26px;
  }

  .word-shuffle-table {
    min-height: 280px;
  }
}