.game-title {
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 1px;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.game-subtitle, #message {
  font-size: 12.5px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 0;
  text-align: center;
}

#message {
  margin: 20px auto 10px auto;
}

.mistakes {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.mistakes-label {
  font-size: 14px;
  color: var(--text-hint);
  font-weight: 400;
  transform: translateY(-1px);
}

.mistake-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--mistake-empty);
  transition: background 0.3s, transform 0.2s;
}

.mistake-dot.used {
  background: var(--mistake-used);
}

#solvedRows {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 500px;
}

.solved-row {
  border-radius: var(--radius);
  padding: 14px 20px;
  text-align: center;
  animation: popIn 0.35s ease;
  display: grid;
  align-items: center;
}

.solved-row .concept-name {
  font-weight: 500;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.solved-row .elements-list {
  font-size: 12px;
  opacity: 0.8;
  margin-top: 3px;
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.grid-wrapper {
  width: 100%;
  max-width: 500px;
  margin-top: 8px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.tile {
  background: var(--tile-bg);
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 10px;
  text-align: center;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.25;
  user-select: none;
  min-height: 32px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.2s all ease-in-out;
  word-break: break-word;
  color: var(--text-primary);
  hyphens: auto;
}

.tile:hover:not(.solved) {
  border-color: var(--tile-border);
  transition: 0.2s all ease-in-out;
}

.tile.selected {
  background: var(--tile-selected);
  color: var(--tile-sel-text);
  border-color: var(--tile-selected);
}

.tile.solved {
  cursor: default;
  opacity: 0;
  pointer-events: none;
}

.tile.shake {
  animation: shake 0.45s ease;
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-7px);
  }
  40% {
    transform: translateX(7px);
  }
  60% {
    transform: translateX(-5px);
  }
  80% {
    transform: translateX(5px);
  }
}

.controls {
  display: flex; gap: 12px; margin-top: 16px;
}

.btn {
  padding: 10px 22px;
  border-radius: 22px;
  border: 2px solid var(--btn-border);
  background: var(--btn-bg);
  color: var(--btn-text);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  letter-spacing: 0.02em;
}

.btn:hover:not(:disabled) {
  background: var(--btn-hover-bg);
  color: var(--btn-hover-text);
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn.primary {
  background: var(--btn-border);
  color: var(--btn-bg);
}

.btn.primary:hover:not(:disabled) {
  background: var(--btn-hover-bg);
  color: var(--btn-hover-text);
}

.overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 16px;
}

.overlay-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 32px 28px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  color: var(--text-primary);
}

.overlay-card h2 {
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 8px;
}

.overlay-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 20px;
}

.overlay-card code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--text-primary);
}

.or-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 12px;
  color: var(--text-hint);
  font-size: 0.78rem;
}

.or-divider::before, .or-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--divider);
}

.result-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 36px 28px;
  max-width: 380px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  color: var(--text-primary);
}

.result-emoji {
  font-size: 3rem;
  margin-bottom: 10px;
}

.result-title {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 8px;
}

.result-msg {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 20px;
  line-height: 1.5;
  white-space: pre-line;
}

.result-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 22px;
  padding: 14px 0;
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
}

.result-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.result-stat-value {
  font-size: 1.6rem;
  font-weight: 600;
}

.result-stat-label {
  font-size: 0.68rem;
  color: var(--text-hint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

.result-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}