/* Crossword Puzzle Styles */

/* Advanced Settings Styles */
.advanced-settings {
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 8px;
  margin-bottom: 20px;
  overflow: hidden;
}

.advanced-settings-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: #e9ecef;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.2s ease;
}

.advanced-settings-header:hover {
  background: #dee2e6;
}

.settings-icon {
  margin-right: 8px;
  font-size: 1.1rem;
}

.settings-title {
  flex: 1;
  font-weight: 600;
  color: #2c3e50;
}

.expand-icon {
  color: #6c757d;
  font-size: 0.9rem;
}

.advanced-settings-content {
  padding: 20px;
}

.setting-group {
  margin-bottom: 24px;
}

.setting-group:last-child {
  margin-bottom: 0;
}

.setting-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 8px;
}

.setting-value {
  background: #e9ecef;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.9rem;
  color: #495057;
}

.slider-container {
  margin-bottom: 8px;
}

.slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: #dee2e6;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #3498db;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #3498db;
  cursor: pointer;
  border: none;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-size: 0.85rem;
  color: #6c757d;
}

.setting-description {
  font-size: 0.9rem;
  color: #6c757d;
  font-style: italic;
}

.presets-section {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #dee2e6;
}

.presets-label {
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 10px;
}

.presets-container {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.preset-button {
  padding: 6px 12px;
  border: 2px solid #6c757d;
  background: white;
  color: #6c757d;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.85rem;
  font-weight: 500;
}

.preset-button:hover {
  border-color: #3498db;
  color: #3498db;
}

.preset-button.active {
  border-color: #3498db;
  background: #3498db;
  color: white;
}

.settings-info {
  margin-top: 16px;
  padding: 12px;
  background: #e3f2fd;
  border-radius: 6px;
  border-left: 4px solid #2196f3;
}

.info-item {
  margin-bottom: 8px;
  font-size: 0.85rem;
  color: #1976d2;
}

.info-item:last-child {
  margin-bottom: 0;
}

.crossword-app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.app-header {
  text-align: center;
  margin-bottom: 30px;
}

.app-title {
  color: #2c3e50;
  font-size: 2.5rem;
  margin-bottom: 10px;
}

/* Topic Selector Styles */
.topic-selector {
  background: #f8f9fa;
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.topic-selector h3 {
  margin-top: 0;
  color: #2c3e50;
}

.topic-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 15px;
}

.topic-btn {
  padding: 8px 16px;
  border: 2px solid #3498db;
  background: white;
  color: #3498db;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.topic-btn:hover {
  background: #3498db;
  color: white;
}

.topic-btn.selected {
  background: #3498db;
  color: white;
}

.selected-count {
  color: #7f8c8d;
  font-size: 0.9rem;
  margin: 0;
}

/* Custom Topics Styles */
.custom-topics-container {
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid #e9ecef;
}

.custom-topics-container h3 {
  color: #2c3e50;
  margin-bottom: 8px;
}

.custom-topics-description {
  color: #7f8c8d;
  font-size: 0.9rem;
  margin-bottom: 15px;
  margin-top: 0;
}

.custom-topic-input-container {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.custom-topic-input {
  flex: 1;
  padding: 8px 12px;
  border: 2px solid #ddd;
  border-radius: 4px;
  font-size: 0.9rem;
  transition: border-color 0.3s ease;
}

.custom-topic-input:focus {
  outline: none;
  border-color: #3498db;
}

.remove-topic-btn {
  background: #e74c3c;
  color: white;
  border: none;
  border-radius: 4px;
  width: 30px;
  height: 30px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.remove-topic-btn:hover {
  background: #c0392b;
}

.add-topic-btn {
  background: #27ae60;
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  font-size: 0.9rem;
  margin-top: 5px;
}

.add-topic-btn:hover {
  background: #229954;
}

/* Custom Sentence Input Styles */
.sentence-input-container {
  margin-top: 20px;
  margin-bottom: 15px;
}

.sentence-label {
  display: block;
  margin-bottom: 8px;
  color: #2c3e50;
  font-weight: 500;
  font-size: 0.95rem;
}

.sentence-input {
  width: 100%;
  padding: 12px;
  border: 2px solid #e1e8ed;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.4;
  resize: vertical;
  min-height: 80px;
  background: white;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  box-sizing: border-box;
}

.sentence-input:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.sentence-input::placeholder {
  color: #95a5a6;
  font-style: italic;
}

.sentence-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 6px;
  font-size: 0.8rem;
}

.char-count {
  color: #7f8c8d;
}

.clear-sentence-btn {
  background: #e74c3c;
  color: white;
  border: none;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
  transition: background-color 0.2s ease;
}

.clear-sentence-btn:hover {
  background: #c0392b;
}

.clear-sentence-btn:active {
  background: #a93226;
}

/* Multi-Theme Toggle Styles */
.multi-theme-toggle-container {
  margin-top: 20px;
  margin-bottom: 15px;
  padding: 15px;
  background: #f0f4f8;
  border: 1px solid #e1e8ed;
  border-radius: 8px;
}

.multi-theme-toggle {
  display: flex;
  align-items: center;
  cursor: pointer;
  margin-bottom: 8px;
}

.multi-theme-checkbox {
  width: 18px;
  height: 18px;
  margin-right: 10px;
  cursor: pointer;
  accent-color: #3498db;
}

.multi-theme-label {
  font-weight: 500;
  color: #2c3e50;
  font-size: 0.95rem;
  user-select: none;
}

.multi-theme-description {
  margin: 0;
  font-size: 0.85rem;
  color: #5a6c7d;
  line-height: 1.4;
  font-style: italic;
  padding-left: 28px;
}

/* AI Toggle Styles */
.ai-toggle-container {
  margin: 20px 0;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
  border: 2px solid #e9ecef;
  transition: all 0.3s ease;
}

.ai-toggle-container:has(.ai-checkbox:checked) {
  background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
  border-color: #3498db;
}

.ai-toggle {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-weight: 500;
  margin-bottom: 8px;
}

.ai-checkbox {
  width: 20px;
  height: 20px;
  margin-right: 12px;
  cursor: pointer;
  accent-color: #3498db;
}

.ai-label {
  font-size: 1rem;
  color: #2c3e50;
  user-select: none;
}

.ai-status {
  color: #27ae60;
  font-weight: 600;
  font-size: 0.9rem;
}

.ai-description {
  margin: 0;
  font-size: 0.85rem;
  color: #6c757d;
  line-height: 1.4;
  padding-left: 32px;
}

/* Puzzle Controls */
.puzzle-controls {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
  justify-content: center;
}

.control-btn {
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.3s ease;
}

.control-btn:disabled {
  background: #bdc3c7 !important;
  color: #7f8c8d !important;
  cursor: not-allowed;
  opacity: 0.7;
}

.generate-btn {
  background: #27ae60;
  color: white;
}

.generate-btn:hover {
  background: #229954;
}

.generate-btn:disabled {
  background: #bdc3c7;
  cursor: not-allowed;
}

.reset-btn {
  background: #e74c3c;
  color: white;
}

.reset-btn:hover {
  background: #c0392b;
}

.reveal-btn {
  background: #f39c12;
  color: white;
}

.reveal-btn:hover {
  background: #e67e22;
}

/* Loading Spinner */
.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 15px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-message {
  color: #7f8c8d;
  font-size: 1.1rem;
}

/* Puzzle Info */
.puzzle-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 20px 0 10px 0;
  padding: 10px 15px;
  background: #f8f9fa;
  border-radius: 6px;
  border-left: 4px solid #3498db;
}

.puzzle-stats {
  font-size: 0.9rem;
  color: #6c757d;
  font-weight: 500;
}

.ai-generated-badge {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 4px 12px;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Puzzle Layout */
.puzzle-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 30px;
  margin-top: 20px;
}

@media (max-width: 768px) {
  .puzzle-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .puzzle-info {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  
  .ai-toggle-container {
    padding: 12px;
  }
  
  .ai-description {
    padding-left: 0;
    text-align: center;
  }
}

/* Puzzle Grid */
.puzzle-container {
  display: flex;
  justify-content: center;
}

.puzzle-grid {
  display: grid;
  gap: 0;
  margin: 0 auto;
  width: fit-content;
  height: fit-content;
}

.grid-cell {
  width: 35px;
  height: 35px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  background: white;
}

.grid-cell::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: -1px;
  bottom: -1px;
  border: 1px solid #2c3e50;
  pointer-events: none;
  z-index: 10;
}

.black-cell {
  background: #f0f0f0;
}

.black-cell::before {
  background: #f0f0f0;
  border: 1px solid #2c3e50;
}

.white-cell {
  background: white;
}

.empty-cell {
  background: transparent;
  border: none;
  visibility: hidden;
}

.empty-cell::before {
  display: none;
}

.cell-input {
  width: 100%;
  height: 100%;
  border: none !important;
  text-align: center;
  font-size: 16px;
  font-weight: bold;
  background: transparent;
  outline: none;
  text-transform: uppercase;
  position: relative;
  z-index: 5;
}

.cell-input:focus {
  background: #e8f4fd;
  box-shadow: inset 0 0 0 2px #3498db;
}

.cell-number {
  position: absolute;
  top: 1px;
  left: 2px;
  font-size: 10px;
  font-weight: bold;
  color: #2c3e50;
  line-height: 1;
  z-index: 15;
  pointer-events: none;
}

.solution-text {
  color: #2c3e50 !important;
  font-weight: bold !important;
  background: white !important;
}

.solution-text:disabled {
  opacity: 1 !important;
  cursor: default;
}


/* Specifically for solution state */
.grid-cell .solution-text {
  border: none !important;
  background: white !important;
}

/* Clue List */
.clue-list {
  background: #f8f9fa;
  padding: 20px;
  border-radius: 8px;
  max-height: 600px;
  overflow-y: auto;
}

.clue-section {
  margin-bottom: 25px;
}

.clue-section h4 {
  color: #2c3e50;
  margin-bottom: 15px;
  font-size: 1.2rem;
  border-bottom: 2px solid #3498db;
  padding-bottom: 5px;
}

.clue-section ol {
  padding-left: 0;
  list-style: none;
}

.clue-item {
  display: flex;
  margin-bottom: 8px;
  padding: 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.clue-item:hover {
  background: #e9ecef;
}

.clue-number {
  font-weight: bold;
  color: #3498db;
  margin-right: 10px;
  min-width: 25px;
}

.clue-text {
  flex: 1;
  color: #2c3e50;
}

/* Error Messages */
.error-message {
  background: #f8d7da;
  color: #721c24;
  padding: 15px;
  border-radius: 5px;
  margin: 20px 0;
  border: 1px solid #f5c6cb;
}

/* Success Messages */
.success-message {
  background: #d4edda;
  color: #155724;
  padding: 15px;
  border-radius: 5px;
  margin: 20px 0;
  border: 1px solid #c3e6cb;
  text-align: center;
  font-weight: 600;
}

/* Tab Navigation */
.tab-nav {
  display: flex;
  border-bottom: 2px solid #e9ecef;
  margin-bottom: 20px;
  gap: 2px;
}

.tab-btn {
  padding: 12px 20px;
  border: none;
  background: #f8f9fa;
  color: #6c757d;
  cursor: pointer;
  border-radius: 8px 8px 0 0;
  font-weight: 500;
  transition: all 0.3s ease;
}

.tab-btn:hover {
  background: #e9ecef;
  color: #495057;
}

.tab-btn.active {
  background: #3498db;
  color: white;
}

/* Debug Tab Styles */
.debug-tab {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 20px;
  margin-top: 20px;
}

.debug-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 2px solid #e9ecef;
  padding-bottom: 15px;
}

.debug-nav-btn {
  padding: 8px 16px;
  border: 1px solid #dee2e6;
  background: white;
  color: #495057;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.debug-nav-btn:hover {
  background: #e9ecef;
  border-color: #adb5bd;
}

.debug-nav-btn.active {
  background: #3498db;
  color: white;
  border-color: #3498db;
}

.debug-content {
  min-height: 300px;
}

.debug-section h3 {
  color: #2c3e50;
  margin-bottom: 15px;
  border-bottom: 1px solid #dee2e6;
  padding-bottom: 8px;
}

.debug-section h4 {
  color: #495057;
  margin-top: 20px;
  margin-bottom: 10px;
}

.debug-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

.debug-grid > div {
  padding: 8px 12px;
  background: white;
  border-radius: 4px;
  border: 1px solid #e9ecef;
  font-size: 0.9rem;
}

.debug-grid strong {
  color: #2c3e50;
}

/* Word Table Styles */
.word-table-container {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid #dee2e6;
  border-radius: 6px;
  background: white;
}

.word-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.word-table th {
  background: #f8f9fa;
  padding: 8px 12px;
  text-align: left;
  border-bottom: 2px solid #dee2e6;
  font-weight: 600;
  color: #495057;
  position: sticky;
  top: 0;
  z-index: 1;
}

.word-table th.sorted-column {
  background: #e3f2fd;
  color: #1976d2;
  font-weight: 700;
}

.word-table th[style*="cursor: pointer"]:hover {
  background: #e9ecef;
}

.word-table td {
  padding: 6px 12px;
  border-bottom: 1px solid #f1f3f4;
}

.word-table tr:hover {
  background-color: #f8f9fa;
}

.word-table td:first-child {
  font-weight: 600;
  color: #2c3e50;
}

.debug-section ul {
  margin: 10px 0;
  padding-left: 20px;
}

.debug-section li {
  margin: 5px 0;
  font-size: 0.9rem;
  line-height: 1.4;
}

/* Probability Distribution Styling */
.prob-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px 15px;
  margin: 15px 0 20px 0;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
  font-size: 0.9rem;
}

.chart-container {
  margin: 20px 0;
  padding: 20px;
  background: #ffffff;
  border: 1px solid #dee2e6;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.chart-description {
  background: #e3f2fd;
  padding: 12px 15px;
  border-radius: 6px;
  border-left: 4px solid #1976d2;
  margin-top: 15px;
  font-size: 0.9rem;
  line-height: 1.4;
  color: #1565c0;
}

.probability-table-container {
  max-height: 600px;
  overflow-y: auto;
  border: 1px solid #dee2e6;
  border-radius: 8px;
}

.probability-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.probability-table th {
  background: #495057;
  color: white;
  padding: 12px 8px;
  text-align: left;
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 2px solid #343a40;
}

.probability-table td {
  padding: 8px;
  border-bottom: 1px solid #e9ecef;
  vertical-align: middle;
}

.probability-table tr:hover {
  background: #f8f9fa;
}

.probability-table tr.selected-word {
  background: #e8f5e8;
  border-left: 4px solid #4CAF50;
}

.probability-table tr.selected-word:hover {
  background: #d4edda;
}

.probability-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}

.prob-text {
  min-width: 60px;
  font-weight: 600;
}

.prob-bar {
  height: 16px;
  border-radius: 8px;
  transition: all 0.3s ease;
  min-width: 2px;
}

.probability-table td:first-child {
  text-align: center;
  color: #6c757d;
  font-weight: 600;
}

.probability-table td:last-child {
  text-align: center;
  font-size: 1.1rem;
  font-weight: bold;
  color: #4CAF50;
}

.probability-table tr:not(.selected-word) td:last-child {
  color: #f44336;
}

/* Responsive */
@media (max-width: 768px) {
  .debug-nav {
    justify-content: center;
  }
  
  .debug-nav-btn {
    font-size: 0.8rem;
    padding: 6px 12px;
  }
  
  .debug-grid {
    grid-template-columns: 1fr;
  }
  
  .word-table {
    font-size: 0.75rem;
  }
  
  .word-table th,
  .word-table td {
    padding: 4px 8px;
  }
  
  .prob-summary {
    grid-template-columns: repeat(2, 1fr);
    text-align: center;
  }
  
  .chart-container {
    padding: 10px;
    margin: 10px 0;
  }
  
  .probability-table {
    font-size: 0.75rem;
  }
  
  .probability-table th,
  .probability-table td {
    padding: 6px 4px;
  }
  
  .prob-text {
    min-width: 50px;
    font-size: 0.8rem;
  }
  
  .prob-bar {
    height: 12px;
  }
}