/* 矢量绘图工具 - 专业软件风格 */
/* 使用系统字体，无需外部资源 */
:root {
  --bg-primary: #1e1e2e;
  --bg-secondary: #2d2d3d;
  --bg-tertiary: #363646;
  --bg-hover: #414158;
  --accent: #89b4fa;
  --accent-hover: #a6c8ff;
  --text-primary: #cdd6f4;
  --text-secondary: #a6adc8;
  --border: #45475a;
  --success: #a6e3a1;
  --danger: #f38ba8;
  --scrollbar-track: rgba(69, 71, 90, 0.25);
  --scrollbar-thumb: rgba(166, 173, 200, 0.35);
  --scrollbar-thumb-hover: rgba(137, 180, 250, 0.5);
}

/* 自定义滚动条 - 贴合 UI */
.recent-projects,
.properties-content,
.layers-list,
.layer-shapes {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

.recent-projects::-webkit-scrollbar,
.properties-content::-webkit-scrollbar,
.layers-list::-webkit-scrollbar,
.layer-shapes::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.recent-projects::-webkit-scrollbar-track,
.properties-content::-webkit-scrollbar-track,
.layers-list::-webkit-scrollbar-track,
.layer-shapes::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
  border-radius: 4px;
  margin: 4px 0;
}

.recent-projects::-webkit-scrollbar-thumb,
.properties-content::-webkit-scrollbar-thumb,
.layers-list::-webkit-scrollbar-thumb,
.layer-shapes::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

.recent-projects::-webkit-scrollbar-thumb:hover,
.properties-content::-webkit-scrollbar-thumb:hover,
.layers-list::-webkit-scrollbar-thumb:hover,
.layer-shapes::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

.recent-projects::-webkit-scrollbar-corner,
.properties-content::-webkit-scrollbar-corner,
.layers-list::-webkit-scrollbar-corner,
.layer-shapes::-webkit-scrollbar-corner {
  background: transparent;
}

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

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'WenQuanYi Micro Hei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow: hidden;
}

.app-window {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--bg-primary);
  border-radius: 8px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

/* 标题栏 */
.title-bar {
  display: none;
  align-items: center;
  height: 38px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  -webkit-app-region: drag;
  user-select: none;
}

.title-bar-drag {
  flex: 1;
}

.app-title {
  font-size: 13px;
  font-weight: 500;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.window-controls {
  display: flex;
  -webkit-app-region: no-drag;
}

.win-btn {
  width: 46px;
  height: 38px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 16px;
  transition: all 0.15s;
}

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

.win-btn.close:hover {
  background: var(--danger);
  color: white;
}

/* 菜单栏 */
.menu-bar {
  display: flex;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0 8px;
}

.menu-item {
  position: relative;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: color 0.15s;
}

.menu-item:hover {
  color: var(--text-primary);
}

.menu-item .dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px;
  margin-top: 4px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  z-index: 1000;
}

.menu-item.dropdown-open .dropdown {
  display: block;
}

.dropdown button {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  text-align: left;
  border-radius: 4px;
}

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

.dropdown hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 4px 0;
}

.dropdown-label {
  display: block;
  padding: 6px 12px;
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.recent-projects {
  max-height: 150px;
  overflow-y: auto;
}

.recent-projects button {
  font-size: 12px;
  padding: 6px 12px;
}

/* 主工作区 */
.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* 工具栏 */
.tool-panel {
  width: 56px;
  background: var(--bg-primary);
  border-right: 1px solid var(--border);
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tool-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tool-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.tool-btn svg {
  width: 22px;
  height: 22px;
}

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

.tool-btn.active {
  background: var(--accent);
  color: var(--bg-primary);
}

/* 画布区域 */
.canvas-container {
  flex: 1;
  overflow: hidden;
  background: var(--bg-primary);
  position: relative;
}

.canvas-wrapper {
  position: absolute;
  transform-origin: 0 0;
  overflow: visible;
}

.canvas-wrapper.panning,
.canvas-wrapper.dragging {
  cursor: grabbing;
}

body.dragging-elements {
  cursor: grabbing !important;
}

#mainCanvas {
  display: block;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
}



.canvas-bg.selected {
  stroke: var(--accent);
  stroke-width: 2;
}

/* 右侧面板 */
.right-panel {
  width: 260px;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  overflow: hidden;
}

/* 属性面板 */
.properties-panel {
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}

.properties-panel .panel-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.properties-panel .panel-header h3 {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin: 0;
  letter-spacing: 0.5px;
}

.properties-content {
  padding: 16px;
  max-height: 320px;
  overflow-x: hidden;
  overflow-y: auto;
}

.properties-empty {
  color: var(--text-secondary);
  font-size: 12px;
  text-align: center;
  padding: 20px 0;
}

.properties-empty .canvas-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* 图层面板 */
.layers-panel {
  flex: 1;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.layers-panel .panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.layers-panel .panel-header h3 {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin: 0;
  letter-spacing: 0.5px;
}

.layers-panel #btnAddLayer {
  width: 24px;
  height: 24px;
  border: none;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-radius: 4px;
  font-size: 16px;
  line-height: 1;
}

.layers-panel #btnAddLayer:hover {
  background: var(--accent);
  color: var(--bg-primary);
}

.layers-list {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 8px;
}

.layer-item {
  flex: 0 0 auto;
  min-height: 0;
  margin-bottom: 4px;
  border-radius: 4px;
  background: var(--bg-tertiary);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.layer-item:has(.layer-shapes:not(.collapsed)) {
  flex: 1;
  min-height: 0;
}

.layer-item.active {
  border: 1px solid var(--accent);
}

.layer-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  padding: 8px 10px;
  gap: 6px;
}

.layer-header:hover {
  background: var(--bg-hover);
}

.layer-header .layer-name {
  flex: 1;
  font-size: 12px;
  color: var(--text-primary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layer-actions {
  display: flex;
  gap: 2px;
}

.layer-actions button {
  width: 22px;
  height: 22px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 2px;
  font-size: 12px;
  padding: 0;
}

.layer-actions button:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.layer-actions .layer-export {
  display: flex;
  align-items: center;
  justify-content: center;
}

.layer-shapes {
  flex: 1;
  min-height: 0;
  padding: 0 8px 8px;
  overflow-y: auto;
}

.layer-shapes.collapsed {
  display: none;
}

.layer-expand {
  font-size: 10px;
  color: var(--text-secondary);
  width: 14px;
  display: inline-block;
}

.shape-item {
  display: flex;
  align-items: center;
  padding: 6px 10px;
  margin-bottom: 2px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--text-secondary);
  gap: 6px;
}

.shape-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.shape-item.selected {
  background: var(--accent);
  color: var(--bg-primary);
}

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

.shape-item .shape-icon svg {
  width: 16px;
  height: 16px;
  color: inherit;
}

.shape-item .shape-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.shape-item .shape-actions {
  display: flex;
  gap: 2px;
}

.shape-item .shape-actions button {
  width: 18px;
  height: 18px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 2px;
  font-size: 10px;
  padding: 0;
}

.shape-item .shape-actions button:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.properties-form {
  padding: 0;
}

.properties-form .panel-section {
  margin-bottom: 16px;
}

.panel-section {
  margin-bottom: 20px;
}

.panel-section h3 {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.prop-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  min-width: 0;
}

.prop-row label {
  flex: 0 0 50px;
  font-size: 12px;
  color: var(--text-secondary);
}

.prop-row input[type="color"] {
  width: 28px;
  height: 28px;
  min-width: 28px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  -webkit-appearance: none;
  appearance: none;
}

.prop-row input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.prop-row input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 50%;
}

.prop-row input[type="color"]::-moz-color-swatch {
  border: none;
  border-radius: 50%;
}

.prop-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.prop-row input[type="text"] {
  flex: 1;
  min-width: 0;
  max-width: 90px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 12px;
  font-family: 'Consolas', 'Monaco', 'Menlo', monospace;
}

.prop-row input[type="number"] {
  flex: 1;
  min-width: 0;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 12px;
  font-family: 'Consolas', 'Monaco', 'Menlo', monospace;
}

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

.prop-row select {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 12px;
}

.fill-gradient .prop-row input[type="number"] {
  flex: 1;
  min-width: 0;
}

.prop-row input#fillOpacity,
.prop-row input#strokeOpacity,
.prop-row input#canvasBgOpacity {
  flex: 0 0 60px;
  max-width: 60px;
}

.gradient-points-group .prop-row {
  margin-bottom: 6px;
}

.shape-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.shape-grid button {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 12px;
  transition: all 0.15s;
}

.shape-grid button:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
}

.selection-box {
  vector-effect: non-scaling-stroke;
}

/* 描边向外扩展，不侵占图形内部 */
#drawLayer path[stroke]:not([stroke="none"]),
#drawLayer rect[stroke]:not([stroke="none"]),
#drawLayer circle[stroke]:not([stroke="none"]),
#drawLayer ellipse[stroke]:not([stroke="none"]),
#drawLayer line[stroke]:not([stroke="none"]) {
  paint-order: stroke fill;
}

#drawLayer .path-element {
  cursor: grab;
}

.path-edit button {
  width: 100%;
  padding: 8px 12px;
  margin-bottom: 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 12px;
}

.path-edit button:hover,
.path-edit button.active {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}

.segment-edit {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.segment-edit .prop-row input[type="range"] {
  flex: 1;
  min-width: 60px;
  padding: 0;
}

.segment-edit .prop-row #curvatureValue {
  flex: 0 0 28px;
  font-size: 12px;
  color: var(--text-secondary);
  text-align: right;
}

/* 状态栏 */
.status-bar {
  display: flex;
  gap: 24px;
  padding: 6px 16px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
}

.status-bar .status-pan-hint {
  margin-left: auto;
  opacity: 0.8;
}

/* 节点编辑样式 */
.node-handle {
  fill: var(--accent);
  stroke: none;
  pointer-events: all;
}

.node-handle:hover,
.node-handle.line-cap-hover {
  fill: var(--danger);
}

.control-handle:hover,
.control-handle.line-cap-hover {
  fill: var(--danger);
}

.line-cap-handle:hover,
.line-cap-handle.line-cap-hover {
  fill: var(--danger);
}

.shape-handle:hover,
.shape-handle.line-cap-hover {
  fill: var(--danger);
}

/* 添加节点时的悬停预览 */
.add-node-preview {
  fill: rgba(137, 180, 250, 0.5);
  stroke: none;
  pointer-events: none;
}

.control-handle {
  fill: var(--success);
  stroke: none;
  pointer-events: all;
}

.drawing-handle {
  fill: var(--accent);
  stroke: none;
  pointer-events: all;
}

.drawing-handle[data-first-handle="true"] {
  fill: var(--success);
}

/* 右键菜单 */
.context-menu {
  position: fixed;
  min-width: 140px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  z-index: 10000;
}

.context-menu button {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 13px;
  text-align: left;
  border-radius: 4px;
}

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

.context-menu .context-separator {
  border: none;
  border-top: 1px solid var(--border);
  margin: 4px 0;
}

/* 导出 PNG 对话框 */
.export-dialog {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10001;
}

.export-dialog-content {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  min-width: 260px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.export-dialog-content h3 {
  font-size: 14px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.export-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.export-option input[type="checkbox"] {
  width: 16px;
  height: 16px;
}

.export-option-scale {
  flex-wrap: wrap;
  gap: 12px;
}

.export-option-scale input[type="range"] {
  flex: 1;
  min-width: 120px;
}

.export-option-scale #exportPngScaleValue {
  min-width: 3em;
  font-variant-numeric: tabular-nums;
}

.export-dialog-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.export-dialog-actions button {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 13px;
}

.export-dialog-actions button:hover {
  background: var(--bg-hover);
}

.export-dialog-actions #exportPngConfirm {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
}

.export-dialog-actions #exportPngConfirm:hover,
.export-dialog-actions #layerExportConfirm:hover {
  background: var(--accent-hover);
}

.export-dialog-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.layer-export-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.layer-export-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
}

.layer-export-option input[type="radio"] {
  width: 16px;
  height: 16px;
}

.export-dialog-actions #layerExportConfirm {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
}

.export-dialog-actions #exportPngImportAsset {
  background: var(--success);
  border-color: var(--success);
  color: var(--bg-primary);
}

.export-dialog-actions #exportPngImportAsset:hover {
  filter: brightness(1.1);
}

.text-shadow-options {
  margin-left: 12px;
  padding-left: 8px;
  border-left: 2px solid var(--border);
}

.text-shadow-options .prop-row {
  margin-bottom: 8px;
}

#textContent {
  width: 100%;
  min-height: 60px;
  resize: vertical;
  font-family: inherit;
}