.virtual-tree{overflow:auto;width:100%;height:100%;position:relative;-webkit-overflow-scrolling:touch}.virtual-tree-phantom{position:absolute;left:0;top:0;right:0;z-index:-1}.virtual-tree-container{width:max-content;min-width:100%;left:0;right:0;top:0;z-index:0;position:absolute}.virtual-tree-node[data-v-vvt-node]{width:100%;position:relative;cursor:default;white-space:nowrap;outline:none;display:flex;align-items:center}.virtual-tree-node .expand-icon[data-v-vvt-node]{cursor:pointer;color:#c0c4cc;font-size:12px;transform:rotate(0);transition:transform .3s ease-in-out}.virtual-tree-node .expand-icon[data-v-vvt-node].no-transition{transition:none}.virtual-tree-node .expand-icon[data-v-vvt-node].expanded{transform:rotate(90deg)}.virtual-tree-node .caret-right[data-v-vvt-node]:before{content:">"}.virtual-tree-node .loading-icon[data-v-vvt-node]{margin-right:8px;font-size:14px;color:#c0c4cc}.checkbox-wrapper[data-v-vvt-checkbox]{display:inline-block;position:relative;vertical-align:middle;white-space:nowrap;cursor:pointer;outline:none;line-height:1;font-size:14px;-webkit-user-select:none;user-select:none;margin-right:8px}.checkbox-wrapper .checkbox[data-v-vvt-checkbox]{position:relative;display:inline-block;width:14px;height:14px;margin:0;vertical-align:middle;border:1px solid #dcdfe6;border-radius:2px;background-color:#fff;transition:border-color .25s cubic-bezier(.71,-.46,.2,1.46),background-color .25s cubic-bezier(.71,-.46,.2,1.46);cursor:pointer;outline:none}.checkbox-wrapper .checkbox[data-v-vvt-checkbox]:checked{background-color:#409eff;border-color:#409eff}.checkbox-wrapper .checkbox[data-v-vvt-checkbox]:checked:after{box-sizing:content-box;content:"";border:1px solid #fff;border-left:0;border-top:0;height:7px;left:4px;position:absolute;top:1px;transform:rotate(45deg);width:3px}.checkbox-wrapper .checkbox[data-v-vvt-checkbox]:indeterminate{background-color:#409eff;border-color:#409eff}.checkbox-wrapper .checkbox[data-v-vvt-checkbox]:indeterminate:after{content:"";position:absolute;display:block;background-color:#fff;height:2px;transform:scale(.5);left:0;right:0;top:5px}.checkbox-wrapper .checkbox[data-v-vvt-checkbox]:disabled{background-color:#f5f7fa;border-color:#e4e7ed;cursor:not-allowed}.checkbox-wrapper .checkbox[data-v-vvt-checkbox]:disabled:checked{background-color:#f5f7fa;border-color:#e4e7ed}.checkbox-wrapper .checkbox[data-v-vvt-checkbox]:disabled:indeterminate{background-color:#f5f7fa;border-color:#e4e7ed}:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}button,input{font:inherit}button,input[type=checkbox]{accent-color:var(--accent)}button:focus-visible,input:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.app-shell{--canvas: #f6f7f4;--surface: #ffffff;--surface-muted: #f3f5f1;--border: #dce2db;--border-strong: #aebcaf;--text: #202923;--muted: #59675e;--subtle: #626e65;--accent: #087f5b;--accent-hover: #066649;--accent-contrast: #ffffff;--focus: #087f5b;--danger: #cf222e;min-height:100dvh;background:var(--canvas);color:var(--text)}.app-shell[data-theme=dark]{color-scheme:dark;--canvas: #121815;--surface: #19211c;--surface-muted: #222d26;--border: #344139;--border-strong: #516258;--text: #e6edf3;--muted: #9da7b3;--subtle: #7d8590;--accent: #71d7a9;--accent-hover: #9ae4c0;--accent-contrast: #14251a;--focus: #71d7a9;--danger: #f85149}.app-header{position:relative;z-index:20;display:flex;min-height:76px;align-items:center;justify-content:space-between;gap:16px;padding:14px clamp(20px,3vw,48px);border-bottom:1px solid var(--border);background:var(--surface)}.brand-line,.header-actions,.panel-heading,.prop-meta,.method-action,.log-list li>div,.frame-summary{display:flex;align-items:center}.brand-line{gap:10px}.brand-mark{display:grid;width:34px;height:34px;place-items:center;border:1px solid var(--border-strong);border-radius:8px;background:var(--text);color:var(--surface);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;font-weight:700}.eyebrow,.section-kicker{margin:0 0 2px;color:var(--muted);font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:none}h1,h2,h3,p{margin-top:0}h1{margin-bottom:0;font-size:17px;line-height:1.2}h2{margin-bottom:0;font-size:15px}h3{margin:0;color:var(--muted);font-size:12px;letter-spacing:.05em;text-transform:none}.runtime-badge,.tag{border:1px solid var(--border);border-radius:999px;background:var(--surface-muted);color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;font-weight:600;line-height:18px;padding:0 7px}.runtime-context,.measurement-time,.runtime-footnote{color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}.header-actions{gap:20px}.workbench-grid{display:grid;grid-template-columns:minmax(270px,.8fr) minmax(0,2fr);grid-template-areas:"settings preview" "inspector inspector";align-items:start;gap:20px;width:min(1440px,100%);margin:0 auto;padding:0 clamp(20px,3vw,48px) 40px}.center-column,.inspector-column{display:grid;align-content:start;gap:20px;min-width:0}.panel{min-width:0;overflow:hidden;border:1px solid var(--border);border-radius:8px;background:var(--surface)}.panel-heading{min-height:64px;justify-content:space-between;gap:10px;padding:15px 18px;border-bottom:1px solid var(--border)}.sticky-heading{position:sticky;top:0;z-index:5;background:var(--surface)}.count{color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;font-weight:400}.button,.text-button,.method-action,.node-expand-button{border:1px solid var(--border-strong);border-radius:5px;cursor:pointer;transition:background-color .12s ease,border-color .12s ease}.button{min-height:34px;padding:4px 10px;font-size:12px;font-weight:600;white-space:nowrap}.button:active:not(:disabled),.method-action:active:not(:disabled){transform:translateY(1px)}.button:disabled,.method-action:disabled,.node-expand-button:disabled{cursor:not-allowed;opacity:.55}.button-primary{border-color:var(--accent);background:var(--accent);color:var(--accent-contrast)}.button-primary:hover:not(:disabled){background:var(--accent-hover)}.button-muted{background:var(--surface-muted);color:var(--text)}.button-muted:hover:not(:disabled),.method-action:hover:not(:disabled){border-color:var(--accent);background:color-mix(in srgb,var(--accent) 9%,var(--surface))}.compact-button{min-width:43px;min-height:32px;padding:2px 7px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}.panel-note,.slot-note{margin:0;padding:12px 18px;border-bottom:1px solid var(--border);background:var(--surface-muted);color:var(--muted);font-size:12px;line-height:1.65}.prop-list{max-height:770px;overflow:auto}.prop-row{display:grid;grid-template-columns:minmax(0,1fr);gap:4px 8px;padding:12px 16px;border-bottom:1px solid var(--border)}.prop-row:last-child{border-bottom:0}.prop-row.is-unsupported{border-left:3px solid var(--danger)}.prop-meta{min-width:0;gap:4px}code,.fixed-value,.compact-input,.method-action small,.benchmark-table,.log-list{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.prop-meta code{overflow:hidden;color:var(--text);font-size:12px;font-weight:600;text-overflow:ellipsis}.tag{flex:0 0 auto;line-height:16px;padding:0 5px;font-size:12px}.tag-danger{border-color:color-mix(in srgb,var(--danger) 50%,var(--border));color:var(--danger)}.prop-control{display:flex;min-width:0;align-items:center;justify-content:flex-start}.switch-control{display:inline-flex;align-items:center;gap:5px;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}.compact-input,.field-group input{width:100%;min-height:32px;border:1px solid var(--border-strong);border-radius:4px;background:var(--surface);color:var(--text);padding:3px 6px;font-size:12px}.fixed-value{overflow:hidden;color:var(--muted);font-size:12px;text-align:right;text-overflow:ellipsis;white-space:nowrap}.prop-detail{grid-column:1 / -1;margin:0;color:var(--subtle);font-size:12px;line-height:1.6}.dataset-actions,.benchmark-actions{display:flex;flex-wrap:wrap;gap:5px}.tree-toolbar{display:flex;align-items:end;gap:7px;padding:16px 18px;border-bottom:1px solid var(--border);background:var(--surface-muted)}.field-group{display:grid;gap:3px;color:var(--muted);font-size:12px;font-weight:600}.grow-field{flex:1 1 180px}.target-field{flex:0 1 150px}.toolbar-button{flex:0 0 auto}.tree-frame{position:relative;min-height:220px;background:var(--surface)}.tree-frame .virtual-tree{scrollbar-color:var(--border-strong) var(--surface-muted)}.tree-frame .virtual-tree-node{min-height:28px;border-bottom:1px solid color-mix(in srgb,var(--border) 65%,transparent);color:var(--text)}.tree-frame .virtual-tree-node:hover{background:color-mix(in srgb,var(--accent) 7%,var(--surface))}.default-node-content .virtual-tree-node{gap:6px;padding:3px 8px;font-size:12px}.default-node-content .virtual-tree-node .name{min-width:150px}.workbench-caret:before{content:">"}.demo-tree-node{display:flex;width:100%;min-width:max-content;align-items:center;gap:6px;padding:3px 8px;font-size:12px}.demo-tree-node.is-current{box-shadow:inset 3px 0 var(--accent);background:color-mix(in srgb,var(--accent) 12%,var(--surface))}.node-indent{flex:0 0 auto}.node-expand-button{display:grid;width:20px;height:20px;place-items:center;border-color:transparent;background:transparent;color:var(--muted);line-height:1}.node-expand-button:hover:not(:disabled){border-color:var(--border);background:var(--surface-muted)}.node-checkbox{width:14px;height:14px;margin:0}.node-label{min-width:150px}.node-key,.node-state{color:var(--subtle);font-size:12px}.node-state{color:var(--accent)}.busy-bar{position:absolute;inset:0 0 auto;z-index:4;min-height:28px;padding:6px 10px;border-bottom:1px solid var(--accent);background:color-mix(in srgb,var(--accent) 14%,var(--surface));color:var(--text);font-size:12px;font-weight:600}.slot-note{border-top:1px solid var(--border);border-bottom:0}.performance-panel{padding-bottom:10px}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:0;border-bottom:1px solid var(--border)}.metric-grid>div{min-width:0;padding:18px;border-right:1px solid var(--border)}.metric-grid>div:last-child{border-right:0}.metric-grid dt{color:var(--muted);font-size:12px}.metric-grid dd{margin:3px 0 0;overflow:hidden;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:25px;font-weight:600;text-overflow:ellipsis}.benchmark-actions{padding:9px 10px}.benchmark-table-wrap{overflow-x:auto;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.benchmark-table{width:100%;border-collapse:collapse;font-size:12px}.benchmark-table th,.benchmark-table td{padding:6px 9px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.benchmark-table th:last-child,.benchmark-table td:last-child{border-right:0}.benchmark-table tbody tr:last-child td{border-bottom:0}.benchmark-table th{background:var(--surface-muted);color:var(--muted)}.frame-summary{gap:18px;padding:9px 10px 3px;color:var(--muted);font-size:12px}.frame-summary strong{color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.runtime-footnote{margin:6px 10px 0}.method-panel{max-height:460px;overflow:auto}.method-groups{padding:8px}.method-group{display:grid;gap:4px;margin-bottom:10px}.method-group h3{padding:2px 4px}.method-action{width:100%;justify-content:space-between;gap:8px;padding:6px 7px;background:var(--surface);color:var(--text);text-align:left}.method-action>span:first-child{display:grid;min-width:0;gap:2px}.method-action>span:last-child{color:var(--accent);font-size:12px;font-weight:600}.method-action code{font-size:12px;font-weight:600}.method-action small{overflow:hidden;color:var(--muted);font-size:12px;font-weight:400;text-overflow:ellipsis;white-space:nowrap}.output-panel{max-height:460px}.text-button{border-color:transparent;background:transparent;color:var(--accent);font-size:12px}.text-button:hover{text-decoration:underline}.log-list{max-height:394px;margin:0;overflow:auto;padding:0;list-style:none;font-size:12px}.log-list li{padding:7px 9px;border-bottom:1px solid var(--border)}.log-list li:last-child{border-bottom:0}.log-list li>div{justify-content:space-between;gap:8px}.log-list code{color:var(--accent);font-weight:600}.log-list time,.log-list small{color:var(--subtle)}.log-list p{margin:4px 0 2px;overflow-wrap:anywhere;color:var(--muted);line-height:1.6}.log-list .has-error{border-left:3px solid var(--danger)}.log-list .has-error code{color:var(--danger)}.empty-log{color:var(--muted)}.props-panel{grid-area:settings}.center-column{grid-area:preview}.inspector-column{grid-area:inspector;grid-template-columns:1.2fr 1fr 1fr}.demo-intro{display:flex;justify-content:space-between;align-items:end;gap:24px;width:min(1440px,100%);margin:auto;padding:38px clamp(20px,3vw,48px) 32px}.demo-intro h2{font-size:clamp(24px,2.6vw,34px);font-weight:600;letter-spacing:-.04em}.demo-intro p{margin:12px 0 0;color:var(--muted);font-size:14px;line-height:1.7}.demo-intro .intro-label{margin:0 0 12px;color:var(--accent);font-size:12px}.intro-link,.repo-link{flex-shrink:0;color:var(--muted);font-size:12px;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible{outline:2px solid var(--focus);outline-offset:4px}.language-switch{display:flex;gap:3px;padding:3px;border:1px solid var(--border);border-radius:6px}.language-switch button{min-width:40px;min-height:30px;padding:4px 8px;border:0;border-radius:3px;background:transparent;color:var(--muted);cursor:pointer;font-size:12px}.language-switch button[aria-pressed=true]{background:var(--text);color:var(--surface)}.dataset-actions button[aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--surface))}.prop-meta{justify-content:space-between;flex-wrap:wrap}.prop-meta code{overflow-wrap:anywhere}.prop-control input:not([type=checkbox]){max-width:100%}.fixed-value{white-space:normal;text-align:left}.tree-heading,.tree-toolbar{flex-wrap:wrap}.benchmark-actions{padding:14px 18px;gap:8px}.frame-summary{flex-wrap:wrap;padding:14px 18px 0}.runtime-footnote{margin:12px 18px 4px;line-height:1.6}.log-list li{padding:12px 16px}.prop-detail{overflow-wrap:anywhere}#tree-heading{scroll-margin-top:24px}@media(max-width:1000px){.workbench-grid{grid-template-columns:minmax(230px,.8fr) minmax(0,1.7fr)}.inspector-column{grid-template-columns:1fr 1fr}.method-panel{grid-column:1 / -1}.method-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.metric-grid>div:nth-child(2){border-right:0}.metric-grid>div:nth-child(-n+2){border-bottom:1px solid var(--border)}.intro-link{display:none}}@media(max-width:700px){.app-header{align-items:flex-start;flex-wrap:wrap;gap:16px}.header-actions{width:100%;justify-content:flex-end;gap:12px}.header-actions .repo-link{margin-right:auto}.workbench-grid{grid-template-columns:minmax(0,1fr);grid-template-areas:"preview" "settings" "inspector"}.inspector-column{grid-template-columns:minmax(0,1fr)}.demo-intro{padding-top:28px;padding-bottom:24px}.demo-intro h2{line-height:1.4}.prop-list{max-height:460px}.tree-toolbar{align-items:stretch}.target-field,.grow-field{flex:1 1 100%}.toolbar-button{flex:1}.method-groups{grid-template-columns:minmax(0,1fr)}.method-panel{max-height:460px}.metric-grid dd{font-size:23px}.measurement-time{max-width:120px;text-align:right}.brand-line{flex-wrap:wrap}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.is-embedded .demo-intro{display:none}.is-embedded .workbench-grid{padding-top:24px}