:root {
  --bg: #1e1f22;
  --panel: #2b2d31;
  --panel-2: #232428;
  --border: #3a3d43;
  --text: #e6e7ea;
  --text-dim: #a2a5ac;
  --accent: #4c9aff;
  --accent-2: #82b7ff;
  --handle: #ffffff;
  --handle-stroke: #4c9aff;
  --marquee: rgba(76, 154, 255, 0.15);
  --marquee-stroke: #4c9aff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.4 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  overflow: hidden;
}

#app {
  display: grid;
  grid-template-columns: 48px 1fr 320px;
  grid-template-rows: 100vh;
}

/* Toolbar */
#toolbar {
  background: var(--panel-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  gap: 4px;
}
.tool {
  width: 36px;
  height: 36px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  border-radius: 6px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 80ms, color 80ms, border-color 80ms;
}
.tool:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.tool.active {
  color: var(--text);
  background: rgba(76, 154, 255, 0.15);
  border-color: rgba(76, 154, 255, 0.5);
}

/* Canvas */
#canvas-wrap {
  background: #14161a;
  display: grid;
  place-items: center;
  padding: 24px;
  min-width: 0;
  min-height: 0;
}
#canvas {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  background: #ffffff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  cursor: default;
  user-select: none;
}
#canvas.draw-mode { cursor: crosshair; }

/* Chrome layer visuals */
#chrome-layer .selection-outline {
  fill: none;
  stroke: var(--handle-stroke);
  stroke-width: 1;
  stroke-dasharray: 4 3;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}
#chrome-layer .handle {
  fill: var(--handle);
  stroke: var(--handle-stroke);
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
  cursor: nwse-resize;
}
#chrome-layer .handle.n, #chrome-layer .handle.s { cursor: ns-resize; }
#chrome-layer .handle.e, #chrome-layer .handle.w { cursor: ew-resize; }
#chrome-layer .handle.ne, #chrome-layer .handle.sw { cursor: nesw-resize; }
#chrome-layer .handle.nw, #chrome-layer .handle.se { cursor: nwse-resize; }
#chrome-layer .rot-handle {
  fill: var(--handle);
  stroke: var(--handle-stroke);
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
  cursor: grab;
}
#chrome-layer .rot-stem {
  stroke: var(--handle-stroke);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  fill: none;
}
#chrome-layer .marquee {
  fill: var(--marquee);
  stroke: var(--marquee-stroke);
  stroke-width: 1;
  stroke-dasharray: 4 3;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}
#chrome-layer .rubber {
  fill: none;
  stroke: var(--marquee-stroke);
  stroke-width: 1;
  stroke-dasharray: 4 3;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}
#chrome-layer .align-guide {
  stroke: #ff3b6b;
  stroke-width: 1;
  stroke-dasharray: 4 3;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
  shape-rendering: crispEdges;
}
#chrome-layer .align-guide.center {
  stroke: #ff3b6b;
  stroke-dasharray: 2 2;
}
#chrome-layer .align-tick {
  stroke: #ff3b6b;
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
  shape-rendering: crispEdges;
}

/* Side */
#side {
  background: var(--panel);
  border-left: 1px solid var(--border);
  display: grid;
  grid-template-rows: auto minmax(120px, 1fr) minmax(120px, 1fr);
  min-width: 0;
  min-height: 0;
}
#side h2 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 8px 0;
}

/* Property panel */
#props {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
#props .empty {
  color: var(--text-dim);
  font-style: italic;
  padding: 4px 0 6px 0;
}
#props-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
#props-form label {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 12px;
}
#props-form label.chk {
  grid-template-columns: auto 1fr;
  justify-items: start;
  color: var(--text-dim);
}
#props-form input[type="color"] {
  width: 44px; height: 24px; padding: 0; border: 1px solid var(--border); background: transparent;
}
#props-form input[type="number"] {
  width: 70px; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px; padding: 3px 6px;
}
#props-form input[type="range"] { width: 130px; }
#props-form label.wide { grid-template-columns: auto 1fr; }
#props-form label.wide input[type="text"] {
  width: 100%; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px; padding: 3px 6px;
}
#props-form select {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px; padding: 3px 6px;
}
.props-divider {
  color: var(--text-dim);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: 4px;
}

/* Align grid */
.align-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  padding-top: 2px;
}
.align-btn {
  height: 28px;
  background: var(--panel-2);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 4px;
  display: grid;
  place-items: center;
  cursor: pointer;
  padding: 0;
  transition: background 80ms, color 80ms, border-color 80ms;
}
.align-btn:hover:not([disabled]) { color: var(--text); background: #33363c; }
.align-btn:active:not([disabled]) { background: #40444c; }
.align-btn[disabled] { opacity: 0.35; cursor: not-allowed; }

/* Import modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: grid;
  place-items: center;
  z-index: 20;
}
.modal[hidden] { display: none; }
.modal-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 18px 14px 18px;
  width: 560px;
  max-width: calc(100vw - 32px);
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  display: grid;
  gap: 10px;
}
.modal-card h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
}
.modal-hint {
  margin: 0;
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.5;
}
.modal-card textarea {
  width: 100%;
  height: 220px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 8px 10px;
  font: 12px/1.45 ui-monospace, "Cascadia Mono", Consolas, monospace;
  resize: vertical;
  outline: none;
}
.modal-card textarea:focus { border-color: var(--accent); }
.modal-row {
  display: flex;
  gap: 16px;
  align-items: center;
}
.modal-row .chk {
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  display: inline-flex;
  gap: 4px;
  align-items: center;
}
.modal-error {
  background: rgba(255, 80, 80, 0.12);
  border: 1px solid rgba(255, 80, 80, 0.5);
  color: #ff9a9a;
  border-radius: 5px;
  padding: 6px 10px;
  font-size: 12px;
  font-family: ui-monospace, Consolas, monospace;
  white-space: pre-wrap;
  max-height: 120px;
  overflow: auto;
}
.modal-btns {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.modal-btns button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 5px 14px;
  font-size: 12px;
  cursor: pointer;
}
.modal-btns button:hover { background: #33363c; }
.modal-btns button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.modal-btns button.primary:hover { background: var(--accent-2); }

/* Layers panel */
#layers-section {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
  padding: 12px 14px 12px 14px;
  border-bottom: 1px solid var(--border);
}
.layers-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
#layers-list {
  min-height: 0;
  overflow: auto;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 0;
  outline: none;
}
#layers-list:focus { border-color: var(--accent); }
.layer-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px 3px 4px;
  cursor: pointer;
  color: var(--text);
  font-size: 12px;
  border-radius: 3px;
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.layer-row:hover { background: rgba(255,255,255,0.04); }
.layer-row.selected {
  background: rgba(76, 154, 255, 0.22);
}
.layer-row.selected:hover {
  background: rgba(76, 154, 255, 0.28);
}
.layer-caret {
  width: 14px;
  height: 14px;
  display: inline-grid;
  place-items: center;
  color: var(--text-dim);
  flex: 0 0 auto;
}
.layer-caret.leaf { visibility: hidden; }
.layer-caret svg { display: block; transition: transform 80ms; }
.layer-row.collapsed .layer-caret svg { transform: rotate(-90deg); }
.layer-icon {
  width: 14px;
  height: 14px;
  color: var(--text-dim);
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
}
.layer-name {
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.layer-name.placeholder { color: var(--text-dim); font-style: italic; }
.layers-empty {
  color: var(--text-dim);
  font-style: italic;
  padding: 10px 12px;
  font-size: 12px;
}

/* Right-click context menu */
.ctx-menu {
  position: fixed;
  z-index: 30;
  min-width: 160px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  user-select: none;
}
.ctx-menu-item {
  background: transparent;
  color: var(--text);
  border: 0;
  border-radius: 4px;
  text-align: left;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
}
.ctx-menu-item:hover {
  background: rgba(76, 154, 255, 0.18);
}
.ctx-menu-item:disabled {
  color: var(--text-dim);
  cursor: not-allowed;
  background: transparent;
}

/* Inline text editor overlay */
.text-edit-overlay {
  position: absolute;
  padding: 2px 4px;
  background: rgba(76, 154, 255, 0.1);
  border: 1px solid var(--accent);
  border-radius: 3px;
  color: #000;
  outline: none;
  min-width: 60px;
  white-space: pre;
  overflow: visible;
}

/* Source panel */
#source-section {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
  padding: 12px 14px 12px 14px;
}
.source-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.source-btns { display: flex; gap: 6px; align-items: center; }
.tight-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--panel-2);
}
.tight-toggle:hover { color: var(--text); }
.tight-toggle input { margin: 0; }
.source-btns button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}
.source-btns button:hover { background: #33363c; }
.source-btns button:active { background: #40444c; }
.source-btns button.flash { background: rgba(76, 154, 255, 0.25); border-color: var(--accent); }

#source {
  margin: 0;
  padding: 10px;
  background: var(--panel-2);
  color: #d8dae0;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: 12px/1.45 ui-monospace, "Cascadia Mono", Consolas, monospace;
  overflow: auto;
  white-space: pre;
  min-height: 0;
  user-select: text;
}