/* Interactive Mode Styles */
.interactive-controls {
  background: white;
  border-radius: 8px;
  margin: 8px 0;
  padding: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.current-step-info {
  background: #f5f7fa;
  border-radius: 6px;
  padding: 8px;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.current-string {
  font-family: 'Courier New', monospace;
  font-weight: 600;
  margin-bottom: 3px;
}

.direction-text {
  color: #3B82F6;
  font-weight: 500;
  font-size: 0.85rem;
  margin-bottom: 2px;
}

.instruction-text {
  color: #1e293b;
  font-size: 0.85rem;
}

.rule-selection-container {
  margin-bottom: 8px;
}

.rule-selection-container .instruction-text {
  margin-bottom: 8px;
  font-weight: 500;
  color: #1e293b;
  font-size: 0.9rem;
}

.rule-buttons-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.rule-button {
  background: #6366F1;
  color: #fff;
  border: none;
  box-shadow: 0 0.125rem 0.5rem rgba(59, 130, 246, 0.06);
  transition: all 0.2s ease;
  font-weight: 500;
  font-size: 1rem;
  font-family: 'Inter', system-ui, sans-serif;
  padding: 0.75rem 1.5rem;
  min-width: 110px;
  min-height: 2.5rem;
  border-radius: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  letter-spacing: 0.01em;
  margin-bottom: 5px;
}

.rule-button:hover {
  filter: brightness(0.95);
  box-shadow: 0 0.25rem 1rem rgba(59, 130, 246, 0.10);
  transform: scale(1.05);
}

.rule-button:active {
  filter: brightness(0.90);
  transform: scale(0.95);
}

.button-row {
  display: flex;
  gap: 10px;
}

.interactive-toggle {
  position: relative;
  display: inline-block;
  margin: 0 10px;
}

.interactive-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.interactive-toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: .4s;
  border-radius: 34px;
}

.interactive-toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .interactive-toggle-slider {
  background-color: #7c3aed;
}

input:focus + .interactive-toggle-slider {
  box-shadow: 0 0 1px #7c3aed;
}

input:checked + .interactive-toggle-slider:before {
  transform: translateX(18px);
}

.interactive-mode-text {
  font-size: 0.9rem;
  color: #4b5563;
  display: inline-block;
  margin-left: 8px;
}

/* Production Rule Button Styles - Keep original horizontal layout and appearance */
.production-rule-button {
  /* Inherit original rule styles */
  padding: 8px 12px;
  background: rgba(140, 90, 255, 0.18);
  border: none;
  border-radius: 6px;
  font-family: monospace;
  font-size: 1.1rem;
  color: #5b21b6;
  font-weight: 500;
  
  /* Add interactive functionality */
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px 0 rgba(124, 58, 237, 0.04);
  
  /* Ensure it stays in horizontal layout */
  display: inline-block;
  margin: 0;
}

.production-rule-button:hover {
  background: rgba(140, 90, 255, 0.35);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.15);
  transform: translateY(-2px) scale(1.02);
}

.production-rule-button:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.production-rule-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Shake animation for incorrect selections */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Current derivation highlighting */
.current-derivation.left {
  border-left: 4px solid #10b981;
  padding-left: 8px;
}

.current-derivation.right {
  border-left: 4px solid #f59e0b;
  padding-left: 8px;
}

/* CYK specific interactive styles */
.cyk-cell-interactive {
  cursor: pointer;
  transition: all 0.3s ease;
}

.cyk-cell-interactive:hover {
  filter: brightness(1.1);
  transform: scale(1.02);
}

.completion-message {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 8px;
  padding: 12px;
  margin: 10px 0;
  color: #047857;
  font-weight: 500;
  text-align: center;
}

.error-message {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: 8px;
  padding: 10px;
  margin: 8px 0;
  color: #dc2626;
  font-weight: 500;
  font-size: 0.9rem;
}

.success-message {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 8px;
  padding: 10px;
  margin: 8px 0;
  color: #047857;
  font-weight: 500;
  font-size: 0.9rem;
}