:root{--bg:#f3f1ec;--surface:#fff;--surface-2:#f7f4f0;--surface-3:#f4f1ec;--card:var(--surface);--ink:#2b2d33;--ink-2:#4a4e57;--muted:#8a8f98;--line:#ece8e1;--line-strong:#d8d2c8;--accent:#f26b1d;--accent-hover:#e05e12;--accent-soft:#fff1e8;--accent-ink:#b4581a;--danger:#d9412b;--danger-soft:#fdf0ee;--ok:#2f9e5b;--ok-soft:#eaf6ef;--warn:#d98a1d;--warn-soft:#fff4e2;--radius-xs:6px;--radius-sm:9px;--radius:12px;--radius-lg:16px;--radius-pill:999px;--shadow-sm:0 1px 3px #281e141f;--shadow:0 1px 2px #281e140f, 0 8px 24px #281e1414;--shadow-lg:0 2px 4px #281e140f, 0 16px 40px #281e1424;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--font:Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono:ui-monospace, "SF Mono", Menlo, monospace;--text-xs:11px;--text-sm:12.5px;--text-md:14px;--text-lg:17px;--text-xl:22px;--control-h-sm:28px;--control-h:32px;--control-h-lg:38px;--header-h:52px;--header-top:10px;--chrome-top:calc(var(--header-top) + var(--header-h) + var(--space-3));--ruler:24px;--z-chrome:5;--z-popover:20;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}html{font:var(--text-md) / 1.4 var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}.card{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow)}.card--padded{padding:var(--space-4)}.eyebrow{color:var(--muted);font-size:var(--text-xs);letter-spacing:.06em;text-transform:uppercase;font-weight:600}.muted{color:var(--muted);font-size:13px}.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.panel{flex-direction:column;min-height:0;display:flex}.panel__head{justify-content:space-between;align-items:flex-start;gap:var(--space-3);padding:var(--space-4) var(--space-4) var(--space-2);display:flex}.panel__title{font-size:var(--text-lg);font-weight:650}.panel__actions{gap:var(--space-1);display:flex}.panel__body{min-height:0;padding:var(--space-2) var(--space-4) var(--space-4);flex:1;overflow:auto}.panel__foot{padding:var(--space-3) var(--space-4);border-top:1px solid var(--line)}.btn{height:var(--control-h);border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);font:inherit;white-space:nowrap;cursor:pointer;justify-content:center;align-items:center;gap:6px;padding:0 12px;font-size:13px;font-weight:550;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.btn--sm{height:var(--control-h-sm);padding:0 10px;font-size:12.5px}.btn:hover:not(:disabled),.btn--pressed{border-color:var(--line-strong);background:#faf8f5}.btn:disabled{opacity:.45;cursor:default}.btn--primary,.btn--primary:hover:not(:disabled){border-color:var(--accent);background:var(--accent);color:#fff}.btn--primary:hover:not(:disabled){background:var(--accent-hover)}.btn--ghost{color:var(--ink-2);background:0 0;border-color:#0000}.btn--ghost:hover:not(:disabled){background:var(--surface-2);border-color:#0000}.btn--danger{color:var(--danger)}.btn--danger:hover:not(:disabled){background:var(--danger-soft);border-color:#f3c9c2}.btn__icon{display:inline-flex}.icon-btn{width:var(--control-h);height:var(--control-h);border-radius:var(--radius-sm);color:var(--ink-2);cursor:pointer;background:0 0;border:0;place-items:center;padding:0;transition:background .15s,color .15s;display:inline-grid}.icon-btn--sm{width:var(--control-h-sm);height:var(--control-h-sm)}.icon-btn:hover:not(:disabled){background:var(--surface-2);color:var(--ink)}.icon-btn--active,.icon-btn--active:hover:not(:disabled){background:var(--accent);color:#fff}.icon-btn:disabled{opacity:.4;cursor:default}.icon-btn svg{width:18px;height:18px}.segmented{background:var(--surface-3);border-radius:10px;flex:none;gap:2px;height:36px;padding:3px;display:inline-flex}.segmented--sm{height:30px}.segmented__item{color:var(--muted);font:inherit;white-space:nowrap;cursor:pointer;background:0 0;border:0;border-radius:8px;align-items:center;padding:0 12px;font-size:13px;font-weight:600;display:inline-flex}.segmented--sm .segmented__item{padding:0 9px;font-size:12px}.segmented__item:hover{color:var(--ink);text-decoration:none}.segmented__item--active,.segmented__item--active:hover{background:var(--surface);color:var(--ink);box-shadow:var(--shadow-sm)}.badge{border-radius:var(--radius-pill);background:var(--surface-3);height:20px;color:var(--ink-2);font-size:var(--text-xs);white-space:nowrap;align-items:center;gap:4px;padding:0 8px;font-weight:600;display:inline-flex}.badge--accent{background:var(--accent-soft);color:var(--accent)}.badge--ok{background:var(--ok-soft);color:var(--ok)}.badge--warn{background:var(--warn-soft);color:var(--accent-ink)}.badge--danger{background:var(--danger-soft);color:var(--danger)}.field{flex-direction:column;gap:4px;display:inline-flex}.field__label{color:var(--muted);font-size:12px}.input{height:var(--control-h);border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);align-items:center;padding:0 8px;transition:border-color .15s,box-shadow .15s;display:inline-flex}.input--sm{height:var(--control-h-sm);border-radius:var(--radius-xs)}.input:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.input--invalid{border-color:var(--danger)}.input__control{width:100%;min-width:0;height:100%;font:inherit;font-variant-numeric:tabular-nums;background:0 0;border:0;outline:0;padding:0;font-size:13px}.input__suffix{color:var(--muted);flex:none;margin-left:4px;font-size:12px}.checkbox{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:8px;display:inline-flex}.checkbox__control{opacity:0;pointer-events:none;position:absolute}.checkbox__box{border:1.5px solid var(--line-strong);background:var(--surface);border-radius:5px;flex:none;width:16px;height:16px;transition:background .15s,border-color .15s}.checkbox__control:checked+.checkbox__box{border-color:var(--accent);background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 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th.num{text-align:right}.canvas-toolbar{z-index:var(--z-chrome);border-radius:14px;align-items:center;gap:4px;padding:6px;display:flex;position:absolute}.canvas-toolbar--column{flex-direction:column}.canvas-toolbar--top-left{top:var(--chrome-top);left:var(--chrome-left,12px)}.canvas-toolbar--top-right{top:var(--chrome-top);right:12px}.canvas-toolbar--top-center{top:var(--chrome-top);left:50%;transform:translate(-50%)}.canvas-toolbar--bottom-left{bottom:12px;left:var(--chrome-left,12px)}.canvas-toolbar--bottom-right{bottom:12px;right:12px}.canvas-toolbar--bottom-center{bottom:12px;left:50%;transform:translate(-50%)}.canvas-toolbar__sep{background:var(--line);align-self:stretch;width:1px;margin:4px 2px}.canvas-toolbar--column .canvas-toolbar__sep{width:auto;height:1px;margin:2px 4px}.menu{position:relative}.menu__panel{max-height:70vh;box-shadow:var(--shadow-lg);z-index:var(--z-popover);padding:6px;position:absolute;top:calc(100% + 8px);overflow:auto}.menu__panel--right{right:0}.menu__panel--left{left:0}.menu__section+.menu__section{border-top:1px solid var(--line);margin-top:4px;padding-top:4px}.menu__title{padding:6px 8px 4px}.menu__item{width:100%;min-height:32px;color:var(--ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:8px;justify-content:space-between;align-items:center;gap:8px;padding:6px 8px;font-size:13px;display:flex}.menu__item:hover:not(:disabled){background:var(--surface-2)}.menu__item:disabled{color:var(--muted);cursor:default}.menu__label{text-overflow:ellipsis;min-width:0;overflow:hidden}.menu__hint{color:var(--muted);flex:none;font-size:12px}.menu__scroll{max-height:320px;overflow:auto}.menu__note{color:var(--muted);padding:6px 8px;font-size:12.5px}.menu__note--error{color:var(--danger)}.is-demo{--demo-h:24px}.is-demo #root{height:calc(100% - var(--demo-h));margin-top:var(--demo-h)}.demo-banner{z-index:100;height:var(--demo-h,24px);background:var(--accent-soft);color:var(--accent-ink);border-bottom:1px solid var(--line);white-space:nowrap;justify-content:center;align-items:center;gap:8px;padding:0 12px;font-size:12px;display:flex;position:fixed;top:0;left:0;right:0}.demo-banner__text{text-overflow:ellipsis;min-width:0;overflow:hidden}.demo-banner__text--short{display:none}@media (width<=760px){.demo-banner__text--long{display:none}.demo-banner__text--short{display:inline}}.demo-banner__link{color:var(--accent-ink);flex:none;font-weight:600}.floorbar__label{color:var(--muted);padding:0 6px 0 8px;font-size:12px}.floorbar__panel{top:calc(var(--chrome-top) + 52px);z-index:var(--z-chrome);border-radius:14px;width:min(340px,100vw - 32px);padding:14px;position:absolute;left:50%;transform:translate(-50%)}.floorbar__actions{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}@media (width<=720px){.floorbar.canvas-toolbar--top-center{top:auto;bottom:64px}}*{box-sizing:border-box}html,body{overscroll-behavior:none}html,body,#root{background:var(--bg);height:100%;margin:0;overflow:hidden}button,select,input{font:inherit;color:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.app{width:100%;height:100%;position:relative}.plan-canvas{touch-action:none;cursor:grab;position:absolute;inset:0}.plan-canvas:active{cursor:grabbing}.plan-canvas--zone,.plan-canvas--zone:active,.plan-canvas--measure,.plan-canvas--measure:active,.plan-canvas--wall,.plan-canvas--wall:active,.plan-canvas--door,.plan-canvas--door:active,.plan-canvas--window,.plan-canvas--window:active{cursor:crosshair}.plan-canvas--dragging,.plan-canvas--dragging:active{cursor:move}.overlay{pointer-events:none;position:absolute;inset:0}.overlay>*{pointer-events:auto}.header{top:var(--header-top);height:var(--header-h);z-index:5;border-radius:14px;align-items:center;gap:12px;padding:0 8px 0 12px;display:flex;position:absolute;left:10px;right:10px}.app--plan{--header-top:calc(var(--ruler) + 8px);--chrome-left:calc(var(--ruler) + 8px);--chrome-top:calc(var(--header-top) + var(--header-h) + 8px)}.app--plan .header{left:var(--chrome-left)}.header__logo{background:var(--accent);border-radius:7px;flex:none;width:22px;height:22px;box-shadow:inset 0 -5px #0000001f}.header__text{white-space:nowrap;text-overflow:ellipsis;flex:auto;min-width:0;overflow:hidden}.header__title{font-size:14px;font-weight:650}.header__meta{color:var(--muted);margin-left:10px;font-size:12.5px}.header__actions{flex:none;gap:4px;display:flex}.save{max-width:260px;height:26px;color:var(--muted);white-space:nowrap;background:#f6f4f0;border-radius:999px;flex:none;align-items:center;gap:6px;padding:0 10px;font-size:12px;display:inline-flex}a.save:hover{background:var(--accent-soft);text-decoration:none}.save__text{text-overflow:ellipsis;overflow:hidden}.save__dot{background:var(--ok);border-radius:50%;flex:none;width:7px;height:7px}.save--warn{background:var(--accent-soft);color:#b4581a}.save--warn .save__dot{background:var(--warn)}.save--err{color:var(--danger);background:#fdf0ee}.save--err .save__dot{background:var(--danger)}.save--busy .save__dot{background:var(--warn);animation:1s ease-in-out infinite pulse}@keyframes pulse{50%{opacity:.3}}.page{padding:calc(var(--header-h) + 22px) 16px 24px;position:absolute;inset:0;overflow:auto}.page--full{touch-action:none;padding:0;overflow:hidden}.page__loading{height:100%;min-height:200px;color:var(--muted);place-items:center;display:grid}.toolbar.canvas-toolbar{width:80px;max-height:calc(100% - var(--chrome-top) - 56px);overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;align-items:stretch;padding:6px;overflow-y:auto}.toolbar.canvas-toolbar>*{flex:none}.toolbar.canvas-toolbar::-webkit-scrollbar{width:4px}.toolbar.canvas-toolbar::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:2px}.toolbar .tool{width:100%}.toolbar.canvas-toolbar--column .canvas-toolbar__sep{margin:2px 0}.toolbar__history{z-index:1;background:var(--surface);grid-template-columns:1fr 1fr;gap:2px;margin:-6px -6px 0;padding:6px 6px 2px;display:grid;position:sticky;top:-6px}.toolbar .tool--mini{width:auto;padding:6px 0}.tool:disabled{opacity:.35;cursor:default;background:0 0}.tool--on{color:var(--accent);background:var(--accent-soft)}.toolbar__opacity{width:100%;color:var(--muted);font-variant-numeric:tabular-nums;flex-direction:column;align-items:center;gap:2px;font-size:11px;display:flex}.toolbar__opacity input{width:56px;accent-color:var(--accent)}.tool{cursor:pointer;width:66px;color:var(--ink);background:0 0;border:0;border-radius:11px;flex-direction:column;align-items:center;gap:2px;padding:7px 2px 5px;display:flex}.tool:hover{background:#f7f4f0}.tool--active,.tool--active:hover{background:var(--accent);color:#fff}.tool__icon{fill:currentColor;width:20px;height:20px}.tool__icon--line{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round}.tool__label{font-size:11px;font-weight:600}.toolbar__material{background:var(--card);box-shadow:var(--shadow);white-space:nowrap;border-radius:12px;align-items:center;gap:8px;padding:8px 10px;display:flex;position:absolute;top:6px;left:calc(100% + 10px)}.select{border:1px solid var(--line);background:var(--card);border-radius:8px;height:30px;padding:0 8px}.swatch{border-radius:4px;flex:none;width:12px;height:12px;display:inline-block;box-shadow:inset 0 0 0 1px #0000001f}.swatch--lg{border-radius:8px;width:28px;height:28px}.inspector{top:var(--chrome-top);width:310px;max-height:calc(100% - var(--chrome-top) - 60px);padding:16px;position:absolute;right:12px;overflow:auto}.inspector__head{margin-bottom:12px;position:relative}.eyebrow--lock{align-items:center;gap:5px;display:inline-flex}.inspector__tabs{justify-content:space-between;align-items:center;gap:8px;min-width:0;margin-bottom:12px;display:flex}.inspector__sheet-close,.tool--narrow{display:none}.inspector__close{position:absolute;top:-4px;right:-6px}.inspector__title{font-size:17px;font-weight:650}.inspector__section{border-top:1px solid var(--line);margin-top:14px;padding-top:12px}.props{grid-template-columns:auto 1fr;gap:6px 12px;margin:0;display:grid}.props dt{color:var(--muted)}.props dd{text-align:right;font-variant-numeric:tabular-nums;margin:0}.chip{align-items:center;gap:6px;display:inline-flex}.row{justify-content:space-between;gap:8px;padding:4px 0;display:flex}.row--center{align-items:center}.total{margin-top:4px;font-size:15px}.furniture-panel{top:var(--chrome-top);left:calc(var(--chrome-left,12px) + 88px);width:300px;max-height:calc(100% - var(--chrome-top) - 60px);position:absolute}.furniture-panel__group+.furniture-panel__group{margin-top:14px}.furniture-panel__grid{grid-template-columns:repeat(3,1fr);gap:4px;margin-top:6px;display:grid}.furniture-panel__item{border-radius:var(--radius-sm);color:var(--ink-2);cursor:grab;background:0 0;border:1px solid #0000;flex-direction:column;align-items:center;gap:4px;padding:8px 4px 6px;display:flex}.furniture-panel__item:hover{border-color:var(--line);background:var(--surface-2)}.furniture-panel__name{text-align:center;font-size:11px;line-height:1.2}.gate{background:var(--bg);place-items:center;padding:16px;display:grid;position:fixed;inset:0}.gate__card{flex-direction:column;gap:12px;width:min(340px,100%);padding:24px;display:flex}.gate__card .input{width:100%;height:var(--control-h-lg)}.gate__title{font-size:var(--text-lg);font-weight:650}.gate__error{color:var(--danger);font-size:13px}button.save{font:inherit;cursor:pointer;border:0;font-size:12px}.preview-bar{top:calc(var(--chrome-top) + 4px);border-left:3px solid var(--accent);max-width:calc(100% - 24px);z-index:var(--z-popover);align-items:center;gap:14px;padding:8px 10px 8px 16px;display:flex;position:absolute;left:50%;transform:translate(-50%)}.preview-bar__actions{flex:none;gap:6px;display:flex}.versions__head{padding:4px 4px 8px}.versions__save{gap:6px;padding:4px;display:flex}.versions__save .input{flex:1}.versions__row{border-radius:8px;justify-content:space-between;align-items:center;gap:8px;padding:6px 4px;display:flex}.versions__row:hover{background:var(--surface-2)}.versions__info{min-width:0}.versions__name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.versions__actions{flex:none;gap:4px;display:flex}.toast{top:calc(var(--chrome-top) + 4px);border-left:3px solid var(--ok);z-index:var(--z-popover);padding:10px 16px;font-weight:600;animation:.2s ease-out toast-in;position:absolute;left:50%;transform:translate(-50%)}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,-6px)}}.align-controls{top:var(--chrome-top);z-index:var(--z-chrome);flex-direction:column;gap:6px;padding:10px 14px;display:flex;position:absolute;left:50%;transform:translate(-50%)}.align-controls__head{align-items:baseline;gap:10px;display:flex}.ctx-menu{min-width:190px;box-shadow:var(--shadow-lg);z-index:var(--z-popover);padding:4px;position:absolute}.measure-hint{color:var(--ink-2);font-variant-numeric:tabular-nums;white-space:nowrap;z-index:var(--z-chrome);padding:8px 14px;font-size:12.5px;position:absolute;bottom:60px;left:50%;transform:translate(-50%)}.room-edit__input{text-align:center;width:140px}.view-controls{bottom:12px}.compass svg{width:20px;height:20px;transition:transform .2s}.form{gap:8px;margin-bottom:12px;display:grid}.form__row{color:var(--muted);grid-template-columns:96px 1fr;align-items:center;gap:8px;font-size:13px;display:grid}.form__row .input,.form__select{width:100%;color:var(--ink)}.form__color{border:1px solid var(--line);border-radius:var(--radius-xs);background:0 0;width:44px;height:28px;padding:0}.props--compact{font-size:13px}.layout-hint{border-radius:var(--radius-sm);background:var(--surface-2);margin-top:12px;padding:10px 12px;font-size:12.5px;line-height:1.5}.layout-hint--warn{background:var(--warn-soft)}.layout-hint__actions{gap:4px;margin-top:6px;display:flex}.row--link{border-radius:var(--radius-xs);text-align:left;cursor:pointer;background:0 0;border:0;width:100%}.row--link:hover{background:var(--surface-2)}.inspector__actions{justify-content:space-between;gap:8px;margin-top:16px;display:flex}.waste{width:72px}.inspector__delete{width:100%;margin-top:16px}.material{align-items:flex-start;gap:10px;padding:10px 0;display:flex}.material+.material{border-top:1px solid var(--line)}.material--unused{opacity:.6}.material__body{flex:1;min-width:0}.material__name{font-weight:600}.material__calc{font-variant-numeric:tabular-nums;margin-top:4px;line-height:1.5}.material__price{font-variant-numeric:tabular-nums;justify-content:space-between;gap:8px;margin-top:4px;display:flex}.material__source{margin-top:2px;font-size:12px}.hint{color:var(--muted);margin:12px 0 0;font-size:12px}.grid-legend{align-items:center;gap:6px;display:inline-flex}.grid-legend__cell{background:#fff;border:1px solid #d9d3c9;width:10px;height:10px;box-shadow:inset 0 0 0 .5px #ece8e1}.status{left:var(--chrome-left,12px);font-variant-numeric:tabular-nums;gap:16px;padding:8px 14px;font-size:12px;display:flex;position:absolute;bottom:12px}.alert{top:var(--chrome-top);max-width:520px;color:var(--danger);white-space:pre-wrap;padding:12px 16px;position:absolute;left:50%;transform:translate(-50%)}.notice{border-left:3px solid 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