.card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.card-title {
  font-size: var(--text-xs);
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  font-weight: 600;
}

.btn {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  touch-action: manipulation;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--accent-primary-text);
}

@media (hover: hover) {
  .btn-primary:hover:not(:disabled) {
    opacity: 0.9;
  }
  .btn-secondary:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
  }
}

.btn-primary:active:not(:disabled) {
  transform: scale(0.97);
  opacity: 0.8;
}

.btn-primary:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-secondary:active {
  border-color: var(--text-primary);
}

.btn-row {
  display: flex;
  gap: var(--space-sm);
}

.btn-row .btn-secondary {
  flex: 1;
}

.btn-row .btn-primary {
  flex: 2;
}

.status-box {
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: var(--text-sm);
  text-align: center;
  line-height: 1.6;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.screen {
  display: none;
  flex-direction: column;
  gap: var(--space-md);
}

.screen.active {
  display: flex;
}

.mode-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: var(--space-md);
}

.overlay.show {
  display: flex;
  animation: overlayFadeIn 0.3s ease;
}

.overlay-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  max-width: 360px;
  width: 100%;
  box-shadow: var(--shadow-overlay);
  animation: overlayCardIn 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.overlay-emoji {
  font-size: 48px;
  margin-bottom: var(--space-sm);
}

.overlay-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.overlay-sub {
  font-size: var(--text-base);
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.overlay-sub strong {
  color: var(--text-primary);
  font-weight: 600;
}

.answer-row-final {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.legend {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.legend-dot--correct {
  background: var(--color-correct);
}

.legend-dot--misplaced {
  background: var(--color-misplaced);
}

.legend-dot--none {
  background: transparent;
  border: 1px solid var(--border-subtle);
}

.lock-icon {
  font-size: 48px;
  margin: var(--space-md) 0;
  opacity: 0.9;
}

.lock-text {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.7;
}

.lock-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

@keyframes overlayFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes overlayCardIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}