:root {
  --bg-primary: #1e1e1e;
  --bg-secondary: #252526;
  --bg-tertiary: #2d2d30;
  --border-color: #3e3e42;
  --text-primary: #cccccc;
  --text-secondary: #969696;
  --accent-blue: #007acc;
  --accent-green: #4ec9b0;
  --accent-red: #f48771;
  --panel-header-bg: #2d2d30;
  --hover-bg: #2a2d2e;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
}

#game-engine {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.menu-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  padding: 0;
  height: 40px;
  align-items: center;
}

.menu-item {
  background: transparent;
  border: none;
  color: var(--text-primary);
  padding: 0 16px;
  height: 100%;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.2s;
}

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

.menu-item.run-btn {
  color: var(--accent-green);
  margin-left: auto;
}

.menu-item.stop-btn {
  color: var(--accent-red);
}

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

.editor-container {
  display: grid;
  grid-template-columns: 200px 250px 1fr 280px;
  grid-template-rows: 1fr;
  height: calc(100vh - 240px);
  gap: 0;
}

.panel {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.panel-header {
  background: var(--panel-header-bg);
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.add-btn {
  background: var(--accent-blue);
  border: none;
  color: white;
  width: 20px;
  height: 20px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  transition: opacity 0.2s;
}

.add-btn:hover {
  opacity: 0.8;
}

.project-info {
  padding: 8px;
}

.project-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.project-stats .stat {
  font-size: 12px;
  color: var(--text-secondary);
  margin: 4px 0;
}

.objects-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.object-item {
  background: var(--bg-tertiary);
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.2s;
}

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

.object-item.selected {
  background: var(--accent-blue);
  color: white;
}

.object-icon {
  width: 20px;
  height: 20px;
  margin-right: 8px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.object-actions {
  display: flex;
  gap: 4px;
}

.object-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
  transition: all 0.2s;
}

.object-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.canvas-container {
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
}

.canvas-header {
  background: var(--panel-header-bg);
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.canvas-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.canvas-controls button {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 4px 8px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

.canvas-controls button:hover {
  background: var(--hover-bg);
}

.canvas-controls button.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

#zoom-level {
  font-size: 11px;
  color: var(--text-secondary);
  min-width: 40px;
  text-align: center;
}

.canvas-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 20px;
  background: #1a1a1a;
}

#game-canvas {
  border: 1px solid var(--border-color);
  background: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.properties-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.no-selection {
  color: var(--text-secondary);
  font-size: 12px;
  text-align: center;
  padding: 20px;
}

.property-group {
  margin-bottom: 16px;
}

.property-group-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.property-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}

.property-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.property-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 8px;
  border-radius: 3px;
  font-size: 13px;
  transition: border-color 0.2s;
}

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

.property-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 8px;
  border-radius: 3px;
  font-size: 13px;
  cursor: pointer;
}

.events-panel {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  height: 200px;
  display: flex;
  flex-direction: column;
}

.events-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.event-item {
  background: var(--bg-tertiary);
  border-radius: 4px;
  padding: 12px;
  font-size: 12px;
}

.event-condition {
  color: var(--accent-green);
  margin-bottom: 8px;
  font-weight: 600;
}

.event-actions {
  padding-left: 16px;
  border-left: 2px solid var(--accent-blue);
}

.event-action {
  color: var(--text-secondary);
  margin: 4px 0;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-overlay.hidden {
  display: none;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.modal-header {
  background: var(--panel-header-bg);
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.close-modal {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  transition: all 0.2s;
}

.close-modal:hover {
  background: var(--hover-bg);
  color: var(--text-primary);
}

.modal-content {
  padding: 20px;
  overflow-y: auto;
}

.object-types {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.object-type-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.object-type-card:hover {
  background: var(--hover-bg);
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

.object-type-icon {
  font-size: 32px;
  margin-bottom: 8px;
}

.object-type-name {
  font-size: 13px;
  font-weight: 600;
}

.tutorial-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.tutorial-overlay.hidden {
  display: none;
}

.tutorial-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 24px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.7);
}

.tutorial-content {
  margin-bottom: 20px;
  font-size: 14px;
  line-height: 1.6;
}

.tutorial-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.tutorial-controls button {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}

.tutorial-controls button:hover {
  background: var(--hover-bg);
}

#tutorial-next {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

#tutorial-skip {
  color: var(--text-secondary);
  border-color: transparent;
}

#tutorial-step {
  font-size: 12px;
  color: var(--text-secondary);
}