#screen-mocks .word-merge-screen {
  width: min(100% - 28px, 760px);
  margin: 0 auto;
  padding: 10px 0 34px;
  color: #17212b;
  font-family: Nunito, Manrope, system-ui, -apple-system, "Segoe UI", sans-serif;
  text-align: left;
}

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

.word-merge-top h2 {
  margin: 0;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 0.98;
  font-weight: 950;
  letter-spacing: -0.035em;
}

.word-merge-top p {
  margin: 6px 0 0;
  color: #667584;
  font-weight: 850;
}

.word-merge-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.word-merge-actions button,
.word-merge-back,
.word-merge-result button {
  min-height: 42px;
  border: 0;
  border-radius: 16px;
  padding: 0 14px;
  background: #ffffff;
  color: #17212b;
  box-shadow: 0 10px 26px rgba(20, 40, 60, 0.10);
  font-weight: 950;
  cursor: pointer;
}

.word-merge-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.word-merge-stats div {
  padding: 14px 16px;
  border-radius: 20px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(20, 40, 60, 0.08);
}

.word-merge-stats span {
  display: block;
  color: #667584;
  font-size: 12px;
  font-weight: 900;
}

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

.word-merge-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 12px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 22px 54px rgba(15, 23, 42, 0.10);
  touch-action: none;
  user-select: none;
}

.word-merge-cell {
  position: relative;
  aspect-ratio: 1;
  border-radius: 20px;
  background: #edf5fb;
}

.word-merge-tile {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px;
  border-radius: inherit;
  background: linear-gradient(145deg, #ffffff, #f4fbff);
  box-shadow: 0 12px 28px rgba(0, 186, 255, 0.12);
  text-align: center;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.word-merge-tile strong {
  display: block;
  color: #17212b;
  font-size: clamp(13px, 2.5vw, 22px);
  line-height: 1;
  font-weight: 950;
}

.word-merge-tile span {
  display: block;
  color: #64748b;
  font-size: clamp(10px, 1.6vw, 13px);
  line-height: 1.1;
  font-weight: 850;
}

.word-merge-tile em {
  display: inline-flex;
  margin-top: 2px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(0, 186, 255, 0.12);
  color: #00a2df;
  font-style: normal;
  font-size: 12px;
  font-weight: 950;
}

.word-merge-tile.level-3 { background: linear-gradient(145deg, #f7fdff, #e8f8ff); }
.word-merge-tile.level-4 { background: linear-gradient(145deg, #f5fff9, #e8fff1); }
.word-merge-tile.level-5 { background: linear-gradient(145deg, #fffaf0, #fff3d8); }
.word-merge-tile.level-6 { background: linear-gradient(145deg, #fff4f4, #ffe7e7); }
.word-merge-tile.level-7,
.word-merge-tile.level-8 {
  background: linear-gradient(145deg, #fff7ed, #ffe3c2);
  box-shadow: 0 16px 34px rgba(249, 115, 22, 0.20);
}

.word-merge-tile.is-new {
  animation: wordMergePop 220ms ease-out;
}

.word-merge-tile.is-merged {
  animation: wordMergeMerge 260ms ease-out;
}

.word-merge-hint {
  margin: 12px 0 0;
  text-align: center;
  color: #667584;
  font-size: 13px;
  font-weight: 850;
}

.word-merge-empty,
.word-merge-result {
  padding: 24px;
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 18px 44px rgba(20, 40, 60, 0.09);
  font-weight: 900;
  text-align: center;
}

.word-merge-result {
  margin-top: 14px;
}

.word-merge-result strong {
  display: block;
  font-size: 26px;
  font-weight: 950;
}

.word-merge-result span {
  display: block;
  margin: 6px 0 12px;
  color: #667584;
  font-weight: 850;
}

@keyframes wordMergePop {
  0% { opacity: 0; transform: scale(0.55); }
  80% { opacity: 1; transform: scale(1.06); }
  100% { transform: scale(1); }
}

@keyframes wordMergeMerge {
  0% { transform: scale(1); }
  48% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

@media (max-width: 620px) {
  #screen-mocks .word-merge-screen {
    width: min(100% - 18px, 520px);
    padding-top: 0;
  }

  .word-merge-top {
    align-items: center;
  }

  .word-merge-top h2 {
    font-size: 30px;
  }

  .word-merge-actions button {
    min-height: 38px;
    padding: 0 11px;
  }

  .word-merge-stats {
    gap: 8px;
  }

  .word-merge-stats div {
    padding: 10px;
  }

  .word-merge-stats strong {
    font-size: 20px;
  }

  .word-merge-board {
    gap: 8px;
    padding: 8px;
    border-radius: 22px;
  }

  .word-merge-cell {
    border-radius: 16px;
  }
}