:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-panel: #1e2a45;
  --bg-input: #0f1626;
  --border: #2a3a5c;
  --text: #e0e0e0;
  --text-dim: #8899aa;
  --accent: #00d4ff;
  --accent-dim: #0088aa;
  --highlight: rgba(0, 212, 255, 0.15);
  --danger: #ff4466;
  --toolbar-height: 40px;
  --status-height: 24px;
  --panel-width: 200px;
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 13px;
  color: var(--text);
  background: var(--bg-primary);
  overflow: hidden;
  height: 100vh;
  display: flex;
  flex-direction: column;
  user-select: none;
}

/* Toolbar */
#toolbar {
  height: var(--toolbar-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 8px;
  gap: 12px;
  flex-shrink: 0;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.app-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--accent);
  margin-right: 8px;
}

.toolbar-spacer {
  flex: 1;
}

.toolbar-link {
  font-size: 12px;
  color: var(--text-dim);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
}

.toolbar-link:hover {
  color: var(--accent);
  background: var(--highlight);
}

select, button {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
  outline: none;
}

select:hover, button:hover {
  border-color: var(--accent-dim);
}

button:active {
  background: var(--highlight);
}

.mode-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: #fff;
}

#scene-selector {
  min-width: 200px;
}

/* Main editor layout */
#editor-layout {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* Panels */
#panel-left, #panel-right {
  width: var(--panel-width);
  min-width: var(--panel-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

#panel-right {
  border-right: none;
  border-left: 1px solid var(--border);
}

.panel {
  border-bottom: 1px solid var(--border);
  padding: 6px;
}

.panel h3 {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.panel canvas {
  width: 100%;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
  cursor: crosshair;
  background: var(--bg-input);
  border: 1px solid var(--border);
}

/* Main canvas area */
#panel-main {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

#main-canvas {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
  cursor: crosshair;
  position: absolute;
}

/* Properties */
#prop-controls {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

#prop-controls label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  padding: 2px 0;
}

#prop-controls input[type="checkbox"] {
  accent-color: var(--accent);
}

.prop-row {
  display: flex;
  gap: 4px;
  padding: 2px 0;
  color: var(--text-dim);
}

.prop-row span:last-child {
  color: var(--text);
  font-family: 'Consolas', 'Courier New', monospace;
}

/* Status bar */
#status-bar {
  height: var(--status-height);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 8px;
  gap: 16px;
  font-size: 11px;
  color: var(--text-dim);
  flex-shrink: 0;
}

/* Asset dropdown */
.dropdown-trigger::after {
  margin-left: 2px;
}

.asset-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  z-index: 200;
  min-width: 280px;
  max-height: 420px;
  overflow-y: auto;
}

.asset-dropdown.open {
  display: block;
}

.asset-type-header {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
  padding: 6px 10px 2px;
  border-top: 1px solid var(--border);
}

.asset-type-header:first-child {
  border-top: none;
}

.asset-entry {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
}

.asset-entry:hover {
  background: var(--highlight);
}

.asset-name {
  flex: 1;
  font-size: 12px;
  font-family: 'Consolas', 'Courier New', monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}

.asset-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 3px;
  color: var(--text-dim);
  cursor: pointer;
  flex-shrink: 0;
}

.asset-btn:hover {
  background: var(--bg-input);
  border-color: var(--border);
  color: var(--text);
}

.asset-btn.edit-btn:hover {
  color: var(--accent);
}

.asset-btn.import-btn:hover {
  color: #81c784;
}

.asset-btn.export-btn:hover {
  color: #ffb74d;
}

.asset-type-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.asset-empty {
  padding: 12px 10px;
  color: var(--text-dim);
  font-size: 11px;
  font-style: italic;
  text-align: center;
}

/* Resize dropdown */
.dropdown-wrap {
  position: relative;
  display: inline-flex;
}

.resize-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  z-index: 200;
  padding: 10px;
  min-width: 180px;
}

.resize-dropdown.open {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.resize-field {
  display: flex;
  align-items: center;
  gap: 8px;
}

.resize-field label {
  font-size: 11px;
  color: var(--text-dim);
  min-width: 42px;
}

.resize-field input[type="number"] {
  width: 56px;
  padding: 3px 6px;
  font-size: 12px;
  font-family: 'Consolas', 'Courier New', monospace;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
}

.resize-field input[type="number"]:focus {
  border-color: var(--accent);
  outline: none;
}

.anchor-grid {
  display: grid;
  grid-template-columns: repeat(3, 18px);
  grid-template-rows: repeat(3, 18px);
  gap: 2px;
}

.anchor-cell {
  width: 18px;
  height: 18px;
  padding: 0;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 2px;
  cursor: pointer;
}

.anchor-cell:hover {
  border-color: var(--accent-dim);
}

.anchor-cell.active {
  background: var(--accent);
  border-color: var(--accent);
}

.resize-info {
  font-size: 11px;
  color: var(--text-dim);
  min-height: 14px;
}

.resize-info.error {
  color: var(--danger);
}

.resize-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

.resize-btn {
  padding: 4px 12px;
  font-size: 11px;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  cursor: pointer;
}

.resize-btn:hover {
  border-color: var(--accent-dim);
}

.resize-btn.primary {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: #fff;
}

.resize-btn.primary:hover {
  background: var(--accent);
}

.resize-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dim);
}