/* One compact control panel beside one continuous canvas. */
#tab-slicer [hidden] { display: none !important; }
#tab-slicer .slicer-main-tabs {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3px;
  width: 100%; min-width: 0; margin: 0 0 16px; padding: 3px;
  border: 1px solid var(--border); border-radius: 9px; background: var(--surface2);
}
#tab-slicer .slicer-main-tabs .mode-tab-btn {
  display: flex; flex-direction: row; align-items: center; justify-content: center; gap: 5px;
  min-width: 0; min-height: 33px; padding: 6px 3px; border: 1px solid transparent;
  border-radius: 6px; background: transparent; box-shadow: none; color: var(--text-muted);
}
#tab-slicer .slicer-main-tabs .mode-tab-btn span {
  display: inline; font-size: 11px; font-weight: 600; line-height: 1; color: inherit; white-space: nowrap;
}
#tab-slicer .slicer-main-tabs .mode-tab-btn.active {
  background: var(--surface); border-color: var(--border); color: var(--text); box-shadow: 0 1px 3px #16233a08;
}
#tab-slicer .slicer-main-tabs .mode-tab-btn.active svg { color: var(--accent); }
#tab-slicer .slicer-main-tabs .mode-tab-btn:hover { color: var(--text); }
#tab-slicer .slicer-main-tabs svg, .layer-icon {
  width: 15px; height: 15px; flex-shrink: 0; fill: none; stroke: currentColor;
  stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}
#slicerLegacySourceCard > .card-title { display: none; }

.layer-workbench {
  --layer-canvas-height: clamp(400px, calc(100dvh - 190px), 720px);
  display: grid; grid-template-columns: 306px minmax(0, 1fr); gap: 14px; align-items: start;
}
.layer-workbench > .card {
  min-width: 0; margin: 0; border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 3px 14px #15233a05;
}
.layer-sidebar { padding: 14px; gap: 0; }
.layer-workspace { padding: 0; gap: 0; overflow: hidden; }
.layer-source-card { min-width: 0; }
.layer-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.layer-heading strong { font-size: 12px; font-weight: 600; }
.layer-source-heading { margin: 0 0 10px; }
.layer-model-badge { color: var(--text-muted); font-size: 10px; font-weight: 400; }
.layer-muted { color: var(--text-muted); font-size: 11px; line-height: 1.6; }

.layer-drop {
  display: flex; align-items: center; justify-content: center; position: relative;
  min-height: 92px; padding: 10px; overflow: hidden; border: 1px dashed var(--border-bright);
  border-radius: 8px; background: color-mix(in srgb, var(--surface2) 50%, var(--surface));
  text-align: center; cursor: pointer; transition: border-color .15s, background .15s;
}
.layer-drop:hover, .layer-drop.dragover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 5%, var(--surface)); }
.layer-drop img { display: block; width: 100%; height: 88px; object-fit: contain; }
#layerDropHint { display: flex; flex-direction: column; gap: 4px; line-height: 1.4; }
#layerDropHint strong { font-size: 12px; font-weight: 600; }
#layerDropHint > span { font-size: 11px; color: var(--text-muted); }
#layerDropHint em { font-style: normal; color: var(--accent); }
#layerDropHint small { font-size: 10px; color: var(--text-muted); }
#layerSourceMeta { margin: 6px 0 0; font-size: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.layer-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; margin-top: 14px; font-size: 11px; color: var(--text-muted); }
.layer-field-label { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.layer-field-label small { font-size: 10px; font-weight: 400; }
.layer-field input, .layer-field select, .layer-field textarea {
  box-sizing: border-box; width: 100%; min-width: 0; margin: 0; padding: 8px 10px;
  border: 1px solid var(--border); border-radius: 7px; background: var(--surface2);
  color: var(--text); font: inherit; font-size: 12px;
}
.layer-field select { height: 35px; }
.layer-field textarea { min-height: 66px; height: 66px; resize: vertical; line-height: 1.6; }
.layer-field input:focus, .layer-field select:focus, .layer-field textarea:focus { outline: none; border-color: var(--accent); }
.layer-workbench .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 31px;
  padding: 6px 10px; border-radius: 7px; font-size: 11px; white-space: nowrap;
}
.layer-source-card > .btn { width: 100%; min-height: 40px; margin-top: 16px; font-size: 13px; font-weight: 600; }
.layer-inline-actions { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.layer-source-card > .layer-inline-actions:has(button:not([hidden])) { margin-top: 8px; }
.layer-billing-note { margin: 8px 0 0; text-align: center; font-size: 10px; }
.layer-status { margin-top: 10px; color: var(--text-muted); font-size: 11px; line-height: 1.6; overflow-wrap: anywhere; }
.layer-status[data-state=busy] { color: var(--accent); }
.layer-status[data-state=error] { padding: 8px 10px; border-radius: 6px; background: #d64b3910; color: #cb4c39; }

.layer-list { display: flex; flex-direction: column; gap: 4px; min-height: 0; margin: 0; padding: 4px 6px; overflow: auto; scrollbar-width: thin; }
.layer-empty-list { padding: 14px 0; color: var(--text-muted); text-align: center; font-size: 11px; }
.layer-row { display: grid; grid-template-columns: 18px 34px minmax(0, 1fr); align-items: center; gap: 8px; padding: 7px 6px; border: 1px solid transparent; border-radius: 7px; cursor: pointer; }
.layer-row:hover { background: var(--surface2); }
.layer-row.active { border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); background: color-mix(in srgb, var(--accent) 7%, var(--surface)); }
.layer-row input { width: 13px; height: 13px; margin: 0; accent-color: var(--accent); cursor: pointer; }
.layer-row img { width: 34px; height: 32px; border-radius: 4px; object-fit: contain; background: repeating-conic-gradient(#e5e9f0 0% 25%, #f6f8fb 0% 50%) 50% / 10px 10px; }
.layer-row-label { min-width: 0; }
.layer-row .layer-row-name { display: block; box-sizing: border-box; width: 100%; height: auto; min-height: 0; margin: 0; padding: 2px 3px; border: 1px solid transparent; border-radius: 4px; background: transparent; color: var(--text); font: inherit; font-size: 11px; line-height: 1.4; text-overflow: ellipsis; cursor: text; }
.layer-row .layer-row-name:hover { border-color: var(--border); }
.layer-row .layer-row-name:focus { outline: none; border-color: var(--accent); background: var(--surface); }
.layer-row small { display: block; margin-top: 2px; color: var(--text-muted); font-size: 10px; }
.layer-row:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.layer-toolbar { display: grid; grid-template-columns: minmax(120px, 1fr) minmax(0, auto); align-items: center; gap: 10px; height: 48px; min-height: 48px; padding: 8px 12px; overflow: hidden; border-bottom: 1px solid var(--border); }
.layer-toolbar > div:first-child { display: flex; align-items: baseline; gap: 8px; min-width: 0; max-width: 310px; overflow: hidden; white-space: nowrap; }
.layer-toolbar strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; font-size: 11px; font-weight: 600; }
#layerDocumentMeta { flex: 0 0 auto; font-size: 9px; }
.layer-toolbar-actions { display: flex; align-items: center; justify-content: flex-end; gap: 5px; min-width: 0; overflow-x: auto; flex-wrap: nowrap; white-space: nowrap; scrollbar-width: none; }
.layer-toolbar-actions::-webkit-scrollbar { display: none; }
.layer-toolbar-actions .btn { flex: 0 0 auto; min-width: 28px; height: 28px; min-height: 28px; padding: 0 8px; font-size: 9px; }
.layer-toolbar-actions .layer-icon { width: 13px; height: 13px; }
.layer-toolbar-actions #layerExportPng { margin-left: 5px; }
.layer-toolbar .layer-compare { display: inline-flex; flex: 0 0 auto; align-items: center; align-self: center; gap: 4px; height: 28px; margin: 0 5px 0 0; padding: 0; line-height: 1; color: var(--text-muted); font-size: 9px; white-space: nowrap; }
.layer-toolbar .layer-compare input { position: static; flex: 0 0 auto; align-self: center; width: 12px; height: 12px; margin: 0; padding: 0; transform: none; accent-color: var(--accent); }
.layer-stage-card { position: relative; min-width: 0; overflow: hidden; }
.layer-viewport {
  display: flex; align-items: center; position: relative; height: var(--layer-canvas-height); min-height: 340px;
  padding: 24px; overflow: auto; box-sizing: border-box;
  background: repeating-conic-gradient(#f2f4f8 0% 25%, #e9edf3 0% 50%) 50% / 24px 24px;
}
.layer-canvas-wrap { position: relative; flex-shrink: 0; margin: auto; line-height: 0; box-shadow: 0 4px 24px #18253c12; }
.layer-canvas-wrap canvas { display: block; touch-action: none; cursor: move; }
.layer-selection { position: absolute; box-sizing: border-box; border: 1.5px solid var(--accent); box-shadow: 0 0 0 1px #ffffff90; pointer-events: none; }
.layer-selection:after { content: ''; position: absolute; right: -4px; bottom: -4px; width: 7px; height: 7px; border: 1px solid var(--accent); background: var(--surface); }
.layer-stage-empty { margin: auto; padding: 36px 12px; text-align: center; color: var(--text-muted); }
.layer-stage-empty svg { display: block; width: 40px; height: 40px; margin: 0 auto 16px; fill: none; stroke: currentColor; stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; opacity: .65; }
.layer-stage-empty strong { display: block; color: var(--text); font-size: 14px; font-weight: 500; }
.layer-stage-empty p { margin: 8px 0 0; font-size: 11px; }
.layer-stage-hint { padding: 9px 12px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: 10px; text-align: center; }
.layer-inspector { margin: 0; padding: 10px; border-top: 1px solid var(--border); }
.layer-inspector .layer-heading { flex-wrap: wrap; }
.layer-inspector .layer-heading .btn { height: 24px; min-height: 24px; padding: 0 5px; font-size: 9px; }
.layer-properties { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; }
.layer-properties .layer-field { margin-top: 10px; }
.layer-properties input { padding: 7px 8px; }
.layer-geometry summary { padding-top: 12px; color: var(--text-muted); font-size: 10px; cursor: pointer; }
.layer-geometry-fields { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.layer-geometry-fields .layer-field:last-child { grid-column: 1 / -1; }
#layerDescription { margin: 9px 0; }
.layer-inspector > .layer-inline-actions { margin-bottom: 8px; }
.layer-inspector > .layer-inline-actions .btn { height: 29px; min-height: 29px; padding: 0 8px; font-size: 10px; }
.layer-inspector > .layer-split-actions { display: grid; grid-template-columns: 1.2fr 1fr; gap: 6px; }
.layer-inspector > .layer-split-actions .btn { display: flex; align-items: center; justify-content: center; gap: 5px; height: 34px; font-size: 11px; }
.layer-inspector > small { font-size: 10px; }

.layer-floating-panel { position: absolute; top: 12px; right: 12px; z-index: 5; display: flex; flex-direction: column; width: 270px; max-width: calc(100% - 24px); max-height: calc(var(--layer-canvas-height) - 24px); overflow: hidden; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); box-shadow: 0 8px 28px #18253c20; }
.layer-dock-toggle { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; width: 100%; height: 38px; padding: 0 10px; border: 0; border-bottom: 1px solid var(--border); background: transparent; color: var(--text); text-align: left; cursor: pointer; }
.layer-dock-toggle strong { font-size: 12px; font-weight: 600; }
.layer-dock-toggle > .layer-muted { margin-left: auto; font-size: 10px; }
.layer-dock-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: -3px; }
.layer-dock-body { display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.layer-dock-actions { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex: 0 0 auto; padding: 8px 10px; }
.layer-dock-actions .btn { height: 28px; min-height: 28px; padding: 0 7px; font-size: 10px; }
.layer-dock-actions > .layer-muted { font-size: 9px; }
.layer-dock-hint { display: block; flex: 0 0 auto; padding: 7px 10px; border-top: 1px solid var(--border); color: var(--text-muted); text-align: center; font-size: 9px; }
.layer-floating-panel[data-collapsed="true"] { width: 34px; border-radius: 8px; }
.layer-floating-panel[data-collapsed="true"] .layer-dock-toggle { justify-content: center; height: 32px; padding: 0; border-bottom: 0; }
.layer-floating-panel[data-collapsed="true"] .layer-dock-toggle strong,
.layer-floating-panel[data-collapsed="true"] .layer-dock-toggle .layer-muted,
.layer-floating-panel[data-collapsed="true"] .layer-dock-fold-icon { display: none; }

.layer-inspector-dock { left: 12px; right: auto; z-index: 6; width: 250px; }
.layer-inspector-dock .layer-dock-fold-icon { margin-left: auto; }
.layer-inspector-body { min-height: 0; overflow: auto; scrollbar-width: thin; overscroll-behavior: contain; }
.layer-preview-trigger { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 100%; height: 194px; margin: 0; padding: 12px 10px 28px; position: relative; border: 0; border-radius: 0; background: repeating-conic-gradient(#e9edf3 0% 25%, #f7f9fc 0% 50%) 50% / 16px 16px; cursor: zoom-in; }
.layer-preview-trigger canvas { max-width: 100%; max-height: 100%; object-fit: contain; }
.layer-preview-trigger > span { position: absolute; bottom: 0; inset-inline: 0; display: flex; align-items: center; justify-content: flex-end; gap: 5px; height: 24px; padding: 0 8px; background: var(--surface); color: var(--text-muted); font-size: 9px; }
#layerPreviewDimensions { margin-right: auto; }
.layer-preview-trigger .layer-icon { width: 12px; height: 12px; }
.layer-preview-trigger:focus-visible { outline: 2px solid var(--accent); outline-offset: -3px; }
.layer-inspector-footer { display: flex; padding: 7px 10px; border-top: 1px solid var(--border); }
.layer-inspector-footer .btn { width: 100%; min-height: 27px; font-size: 10px; }
.layer-preview-dialog { position: fixed; inset: 0; width: min(1080px, calc(100vw - 40px)); max-height: calc(100dvh - 48px); margin: auto; padding: 0; overflow: hidden; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); box-shadow: 0 24px 80px #00000040; }
.layer-preview-dialog[open] { display: flex; flex-direction: column; }
.layer-preview-dialog::backdrop { background: #0d172a80; backdrop-filter: blur(3px); }
.layer-preview-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.layer-preview-header > div { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.layer-preview-header strong { overflow: hidden; text-overflow: ellipsis; font-size: 13px; }
.layer-preview-header .btn { display: grid; place-items: center; width: 28px; height: 28px; padding: 0; }
.layer-preview-stage { display: flex; align-items: center; justify-content: center; min-height: 160px; height: min(68dvh, 700px); padding: 20px; overflow: auto; background: repeating-conic-gradient(#e9edf3 0% 25%, #f7f9fc 0% 50%) 50% / 24px 24px; }
.layer-preview-stage canvas { max-width: 100%; max-height: 100%; object-fit: contain; }
.layer-preview-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; border-top: 1px solid var(--border); }
.layer-preview-footer .btn { min-height: 30px; font-size: 11px; }
body:has(#layerPreviewDialog[open]) { overflow: hidden; }

.layer-rename-dialog { position: fixed; inset: 0; width: min(700px, calc(100vw - 32px)); max-height: min(680px, calc(100dvh - 48px)); margin: auto; padding: 0; overflow: hidden; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); box-shadow: 0 24px 80px #00000040; }
.layer-rename-dialog[open] { display: flex; flex-direction: column; }
.layer-rename-dialog::backdrop { background: #0d172a70; backdrop-filter: blur(3px); }
.layer-rename-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px; border-bottom: 1px solid var(--border); }
.layer-rename-header strong { font-size: 14px; }
.layer-rename-header p { margin: 5px 0 0; color: var(--text-muted); font-size: 11px; }
.layer-rename-header .btn { width: 28px; height: 28px; padding: 0; font-size: 18px; }
.layer-rename-columns, .layer-rename-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 20px; }
.layer-rename-columns { padding: 9px 16px; color: var(--text-muted); font-size: 10px; }
.layer-rename-preview { flex: 1 1 auto; min-height: 0; padding: 0 16px; overflow: auto; }
.layer-rename-row { align-items: center; padding: 9px 0; border-bottom: 1px solid var(--border); }
.layer-rename-row > span:first-child { color: var(--text-muted); font-size: 11px; overflow-wrap: anywhere; }
.layer-rename-row input { width: 100%; min-width: 0; height: 31px; padding: 5px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface2); color: var(--text); font: inherit; font-size: 11px; }
.layer-rename-row small { display: block; margin-top: 3px; color: var(--text-muted); font-size: 10px; }
.layer-rename-error { margin: 8px 16px; color: #cb4c39; font-size: 11px; }
.layer-rename-footer { display: flex; align-items: center; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }
.layer-rename-footer > .layer-muted { margin-right: auto; font-size: 10px; }
.layer-rename-footer .btn { height: 32px; padding: 0 12px; font-size: 11px; }
body:has(#layerRenameDialog[open]) { overflow: hidden; }
.layer-split-confirm-dialog { position: fixed; inset: 0; width: min(440px, calc(100vw - 32px)); max-height: calc(100dvh - 48px); margin: auto; padding: 0; overflow: auto; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); box-shadow: 0 24px 80px #00000040; }
.layer-split-confirm-dialog::backdrop { background: #0d172a70; backdrop-filter: blur(3px); }
.layer-split-confirm-body { padding: 8px 16px; font-size: 12px; line-height: 1.7; }
.layer-split-confirm-body p:first-child { overflow-wrap: anywhere; font-weight: 650; }
.layer-split-confirm-body .layer-muted { font-size: 11px; }
body:has(#layerSplitConfirmDialog[open]) { overflow: hidden; }

@media (min-width: 821px) {
  .layer-sidebar { max-height: calc(100dvh - 106px); overflow: auto; scrollbar-width: thin; overscroll-behavior: contain; }
}
@media (max-width: 1200px) {
  .layer-workbench { grid-template-columns: 292px minmax(0, 1fr); }
}
@media (max-width: 820px) {
  .layer-workbench { --layer-canvas-height: 400px; grid-template-columns: minmax(0, 1fr); }
  .layer-sidebar { padding: 12px; }
  .layer-viewport { height: 400px; min-height: 300px; padding: 16px; }
  .layer-toolbar-actions { justify-content: flex-start; }
  .layer-floating-panel { width: 240px; }
  .layer-rename-footer { flex-wrap: wrap; }
  .layer-rename-footer > .layer-muted { width: 100%; }
  .layer-stage-hint { line-height: 1.6; }
}
body[data-theme="dark"] .layer-viewport { background: repeating-conic-gradient(#1b2230 0% 25%, #202838 0% 50%) 50% / 24px 24px; }
body[data-theme="dark"] :is(.layer-preview-trigger, .layer-preview-stage) { background: repeating-conic-gradient(#1b2230 0% 25%, #202838 0% 50%) 50% / 24px 24px; }