/* Level Generator Styles */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-card: #1c2128;
  --border-color: #30363d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --accent-blue: #58a6ff;
  --accent-green: #3fb950;
  --accent-purple: #a371f7;
  --accent-orange: #f0883e;
  --accent-red: #f85149;
  --accent-cyan: #39c5cf;
  --shadow: 0 8px 24px rgba(0,0,0,0.4);
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

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

.logo-icon {
  font-size: 28px;
}

.logo-text {
  font-size: 20px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.header-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.header-link:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

/* Main */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 24px;
}

/* Wizard */
.wizard {
  margin-bottom: 32px;
}

.wizard-progress {
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  margin-bottom: 16px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  width: 25%;
  transition: width 0.3s ease;
}

.wizard-steps {
  display: flex;
  justify-content: space-between;
}

.wizard-step {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s;
  opacity: 0.5;
}

.wizard-step.active {
  opacity: 1;
  background: var(--bg-tertiary);
}

.wizard-step.completed {
  opacity: 1;
}

.wizard-step.completed .step-number {
  background: var(--accent-green);
}

.step-number {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 600;
}

.wizard-step.active .step-number {
  background: var(--accent-blue);
}

.step-label {
  font-size: 14px;
  font-weight: 500;
}

/* Step Content */
.step-content {
  flex: 1;
}

.step-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.step-panel.active {
  display: block;
}

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

.step-header {
  text-align: center;
  margin-bottom: 32px;
}

.step-header h1 {
  font-size: 28px;
  margin-bottom: 8px;
}

.step-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.form-card h3 {
  font-size: 16px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* Complexity Selector */
.complexity-selector {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.complexity-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 12px;
  background: var(--bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-primary);
}

.complexity-btn:hover {
  border-color: var(--border-color);
  transform: translateY(-2px);
}

.complexity-btn.active {
  border-color: var(--accent-blue);
  background: rgba(88, 166, 255, 0.1);
}

.complexity-icon {
  font-size: 24px;
  margin-bottom: 6px;
}

.complexity-name {
  font-weight: 600;
  font-size: 14px;
}

.complexity-desc {
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 4px;
}

/* Size Selector */
.size-selector {
  display: flex;
  gap: 20px;
  margin-bottom: 16px;
}

.size-option {
  flex: 1;
}

.size-option label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.stepper {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.stepper-btn {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 18px;
  cursor: pointer;
  transition: background 0.2s;
}

.stepper-btn:hover {
  background: var(--bg-secondary);
}

.stepper-value {
  flex: 1;
  text-align: center;
  font-size: 18px;
  font-weight: 600;
}

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

.preset-btn {
  padding: 6px 12px;
  font-size: 12px;
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.preset-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-color);
}

.preset-btn.active {
  background: var(--accent-blue);
  color: white;
}

/* Layers Selector */
.layers-selector {
  display: flex;
  gap: 10px;
}

.layer-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  background: var(--bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-primary);
}

.layer-btn:hover {
  border-color: var(--border-color);
}

.layer-btn.active {
  border-color: var(--accent-purple);
  background: rgba(163, 113, 247, 0.1);
}

.layer-icon {
  font-size: 24px;
  margin-bottom: 6px;
}

/* Theme Selector */
.theme-selector {
  display: flex;
  gap: 12px;
}

.theme-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px;
  background: var(--bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-primary);
}

.theme-btn:hover {
  border-color: var(--border-color);
}

.theme-btn.active {
  border-color: var(--accent-cyan);
}

.theme-preview {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  margin-bottom: 8px;
}

/* Elements Grid */
.elements-grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.element-category {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.category-header h3 {
  flex: 1;
  font-size: 16px;
}

.category-icon {
  font-size: 20px;
}

.toggle-all-btn {
  padding: 6px 12px;
  font-size: 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.toggle-all-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-blue);
}

.element-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.element-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: var(--bg-tertiary);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}

.element-card:hover {
  border-color: var(--border-color);
  transform: translateY(-2px);
}

.element-card.selected {
  border-color: var(--accent-green);
  background: rgba(63, 185, 80, 0.1);
}

.element-card.required {
  opacity: 0.6;
  cursor: not-allowed;
}

.element-card.required::after {
  content: 'Required';
  position: absolute;
  top: 4px;
  right: 4px;
  font-size: 9px;
  background: var(--accent-orange);
  padding: 2px 6px;
  border-radius: 4px;
}

.element-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
}

.element-info {
  flex: 1;
  min-width: 0;
}

.element-name {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.element-code {
  font-size: 10px;
  color: var(--text-muted);
  font-family: monospace;
}

/* Mechanics Grid */
.mechanics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.mechanic-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.mechanic-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.mechanic-header h3 {
  flex: 1;
  font-size: 16px;
}

.mechanic-icon {
  font-size: 20px;
}

.mechanic-card > p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.mechanic-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mechanic-options[data-requires] {
  padding-left: 12px;
  border-left: 2px solid var(--border-color);
}

/* Toggle Switch */
.toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

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

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--bg-tertiary);
  border-radius: 24px;
  transition: 0.3s;
}

.toggle-slider::before {
  position: absolute;
  content: '';
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: 0.3s;
}

.toggle input:checked + .toggle-slider {
  background: var(--accent-green);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: white;
}

/* Checkbox */
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 13px;
}

.checkbox-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-blue);
}

/* Slider */
.slider-option {
  display: flex;
  align-items: center;
  gap: 12px;
}

.slider-option label {
  font-size: 13px;
  flex: 1;
}

.slider-option input[type="range"] {
  width: 100px;
  accent-color: var(--accent-blue);
}

.slider-value {
  width: 24px;
  text-align: center;
  font-weight: 600;
}

/* Generate Content */
.generate-content {
  display: grid;
  gap: 20px;
}

.summary-card, .preview-card, .export-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.summary-card h3, .preview-card h3, .export-card h3 {
  margin-bottom: 16px;
  font-size: 16px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}

.summary-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.summary-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary-value {
  font-size: 16px;
  font-weight: 600;
}

.summary-value.highlight {
  color: var(--accent-blue);
}

/* Preview */
.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.preview-header h3 {
  margin: 0;
}

.preview-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.preview-container {
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.preview-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
}

.placeholder-icon {
  font-size: 48px;
  opacity: 0.5;
}

/* Grid Preview */
.grid-preview {
  display: grid;
  gap: 2px;
  padding: 16px;
}

.grid-cell {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  border-radius: 4px;
  font-weight: 500;
  transition: all 0.2s;
  cursor: default;
}

.grid-cell:hover {
  transform: scale(1.1);
  z-index: 1;
}

.grid-cell.ground { background: #374151; }
.grid-cell.wall { background: #1f2937; color: #6b7280; }
.grid-cell.ice { background: #93c5fd; color: #1e3a8a; }
.grid-cell.water { background: #3b82f6; color: #dbeafe; }
.grid-cell.heat { background: #f97316; color: #fff7ed; }
.grid-cell.glass { background: #a5b4fc; color: #3730a3; }
.grid-cell.hole { background: #0f172a; color: #475569; }
.grid-cell.start { background: #22c55e; color: white; }
.grid-cell.end { background: #fbbf24; color: #78350f; }
.grid-cell.key { background: #f59e0b; color: white; }
.grid-cell.door { background: #dc2626; color: white; }
.grid-cell.jump { background: #8b5cf6; color: white; }
.grid-cell.teleporter { background: #a855f7; color: white; }
.grid-cell.transform { background: #ec4899; color: white; }
.grid-cell.pushable { background: #6366f1; color: white; }
.grid-cell.flying { background: #06b6d4; color: white; }

/* Solution path indicator */
.grid-cell.on-path {
  box-shadow: inset 0 0 0 2px #22c55e;
  position: relative;
}

.grid-cell.on-path::after {
  content: '';
  position: absolute;
  inset: 4px;
  background: rgba(34, 197, 94, 0.3);
  border-radius: 2px;
  pointer-events: none;
}

/* Layer Tabs */
.layer-tabs {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.layer-tab {
  padding: 8px 16px;
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.layer-tab:hover {
  color: var(--text-primary);
}

.layer-tab.active {
  background: var(--accent-purple);
  color: white;
}

/* Generate Actions */
.generate-actions {
  display: flex;
  justify-content: center;
  padding: 20px 0;
}

/* Export Options */
.export-options {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.export-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
}

.export-btn:hover {
  border-color: var(--accent-blue);
  background: rgba(88, 166, 255, 0.1);
}

.export-icon {
  font-size: 24px;
}

.export-btn.primary {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.export-btn.primary:hover {
  background: #4c94e8;
}

.export-btn.success {
  background: var(--accent-green);
  border-color: var(--accent-green);
}

.export-btn.success:hover {
  background: #36a346;
}

/* Filename Input */
.filename-input {
  margin-bottom: 20px;
}

.filename-input label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.input-group {
  display: flex;
  gap: 8px;
}

.input-group input {
  flex: 1;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
}

.input-group input:focus {
  outline: none;
  border-color: var(--accent-blue);
}

.input-group select {
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
}

/* Code Preview */
.code-preview {
  margin-top: 20px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
}

.copy-code-btn {
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-code-btn:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.code-preview pre {
  padding: 14px;
  margin: 0;
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-primary);
  overflow-x: auto;
  max-height: 200px;
  white-space: pre;
}

/* Saved Levels */
.saved-levels {
  margin-top: 20px;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

.saved-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.saved-header h4 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.clear-saved-btn {
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--accent-red);
  border-radius: 4px;
  color: var(--accent-red);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}

.clear-saved-btn:hover {
  background: rgba(248, 81, 73, 0.1);
}

.saved-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 200px;
  overflow-y: auto;
}

.saved-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.saved-item:hover {
  background: var(--bg-secondary);
}

.saved-icon {
  font-size: 18px;
}

.saved-info {
  flex: 1;
  min-width: 0;
}

.saved-name {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.saved-meta {
  font-size: 11px;
  color: var(--text-muted);
}

.saved-actions {
  display: flex;
  gap: 6px;
}

.saved-action-btn {
  padding: 4px 8px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}

.saved-action-btn:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.saved-action-btn.play {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.saved-action-btn.play:hover {
  background: rgba(63, 185, 80, 0.1);
}

.saved-action-btn.delete {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

.saved-action-btn.delete:hover {
  background: rgba(248, 81, 73, 0.1);
}

.empty-saved {
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-size: 13px;
}

/* Wizard Navigation */
.wizard-nav {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  margin-top: 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: #4c94e8;
}

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

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent-blue);
}

.btn-small {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-large {
  padding: 14px 32px;
  font-size: 16px;
}

.btn-icon {
  font-size: 18px;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s ease;
  z-index: 1000;
}

.toast.success {
  border-color: var(--accent-green);
}

.toast.error {
  border-color: var(--accent-red);
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
  .header {
    padding: 12px 16px;
  }
  
  .main {
    padding: 16px;
  }
  
  .wizard-steps {
    gap: 8px;
  }
  
  .step-label {
    display: none;
  }
  
  .complexity-selector {
    grid-template-columns: 1fr;
  }
  
  .layers-selector {
    flex-direction: column;
  }
  
  .mechanics-grid {
    grid-template-columns: 1fr;
  }
}