:root{--g-0: #fdfefe;--g-25: #f8fafa;--g-50: #f3f6f6;--g-100: #ebefef;--g-150: #e1e7e6;--g-200: #d2dad9;--g-300: #b4bfbd;--g-400: #8d9a98;--g-500: #6b7877;--g-600: #4e5a58;--g-700: #38423f;--g-800: #222b29;--g-900: #141a19;--d-900: #0d1312;--d-800: #111817;--d-700: #151d1b;--d-600: #1b2422;--d-500: #232e2c;--d-400: #2e3b39;--d-300: #77857f;--d-200: #a2afad;--d-100: #e4edeb;--teal-50: #e8f7f4;--teal-100: #c9ede6;--teal-200: #9bdfd3;--teal-300: #5fcebe;--teal-400: #2dd4bf;--teal-500: #0f9e8d;--teal-600: #0c8173;--teal-700: #0a665b;--paper: #ffffff;--paper-ink: #1a1f27;--amber-400: #e0a24a;--amber-500: #b45309;--red-400: #f87171;--red-500: #dc2626;--green-500: #2f9e57;--space-1: 2px;--space-2: 4px;--space-3: 6px;--space-4: 8px;--space-5: 12px;--space-6: 16px;--space-7: 24px;--space-8: 32px;--space-9: 48px;--size-6: 24px;--size-7: 28px;--size-8: 32px;--size-10: 40px;--size-12: 48px;--radius-1: 4px;--radius-2: 6px;--radius-3: 10px;--radius-4: 14px;--radius-round: 999px;--text-11: 11px;--text-12: 12px;--text-13: 13px;--text-14: 14px;--text-16: 16px;--text-20: 20px;--weight-normal: 400;--weight-medium: 500;--weight-semi: 600;--dur-1: .12s;--dur-2: .2s;--ease-out: cubic-bezier(.22, 1, .36, 1);--font-sans: "DM Sans", ui-sans-serif, system-ui, sans-serif;--font-mono: ui-monospace, "SF Mono", Menlo, monospace}:root{--control-h-xs: var(--size-6);--control-h-sm: var(--size-7);--control-h-md: var(--size-8);--control-h-lg: var(--size-10);--control-px-xs: var(--space-3);--control-px-sm: var(--space-4);--control-px-md: var(--space-5);--control-px-lg: var(--space-6);--icon-sm: 16px;--icon-md: 20px;--icon-lg: 24px;--icon-stroke: 1.5;--radius-control: var(--radius-2);--radius-panel: var(--radius-3);--radius-popover: var(--radius-4);--gap-inline: var(--space-2);--gap-group: var(--space-5);--gap-stack: var(--space-4);--gap-section: var(--space-7)}:root{--btn-h: var(--control-h-md);--btn-px: var(--control-px-md);--btn-radius: var(--radius-control);--btn-gap: var(--space-3);--btn-icon: var(--icon-sm);--iconbtn-size: var(--control-h-md);--iconbtn-icon: var(--icon-md);--input-h: var(--control-h-md);--input-px: var(--control-px-sm);--input-radius: var(--radius-control);--seg-h: var(--control-h-md);--seg-pad: 3px;--topbar-h: 48px;--topbar-px: var(--space-5);--nav-w: 236px;--nav-row-h: var(--control-h-md);--nav-sub-h: var(--control-h-sm);--nav-icon: var(--icon-md);--nav-indent: var(--space-8);--nav-phase-h: var(--control-h-sm);--footer-h: 40px;--footer-px: var(--space-5);--dock-w: 50px;--dock-left: var(--space-5);--card-left: calc(var(--dock-left) + var(--dock-w) + var(--space-4));--panel-px: var(--space-5);--panel-radius: var(--radius-panel);--popover-px: var(--space-4);--popover-radius: var(--radius-panel);--menu-item-h: var(--control-h-md);--menu-item-px: var(--space-4)}[data-density=compact]{--btn-h: var(--control-h-sm);--iconbtn-size: var(--control-h-sm);--input-h: var(--control-h-sm);--seg-h: var(--control-h-sm);--nav-row-h: var(--control-h-sm);--nav-sub-h: var(--control-h-xs);--nav-w: 212px;--topbar-h: 40px;--footer-h: 32px;--panel-px: var(--space-4);--popover-px: var(--space-3);--menu-item-h: var(--control-h-sm)}:root{--font-size-xs: var(--text-11);--font-size-sm: var(--text-12);--font-size-base: var(--text-13);--font-size-md: var(--text-14);--font-size-lg: var(--text-16);--radius-sm: var(--radius-1);--radius-md: var(--radius-control);--radius-lg: var(--radius-panel);--radius-full: var(--radius-round);--transition-fast: var(--dur-1) var(--ease-out);--transition-normal: var(--dur-2) var(--ease-out);--topbar-height: var(--topbar-h);--footer-bar-height: var(--footer-h);color-scheme:light dark}:root,[data-theme=light]{color-scheme:light;--color-bg: var(--g-25);--color-surface: var(--g-0);--color-surface-muted: var(--g-50);--color-surface-raised: var(--g-0);--color-border: var(--g-150);--color-border-strong: var(--g-200);--color-text: var(--g-800);--color-text-secondary: var(--g-600);--color-text-muted: var(--g-400);--color-on-accent: #ffffff;--color-hover: var(--g-100);--color-active: var(--g-150);--color-accent: var(--teal-500);--color-accent-hover: var(--teal-600);--color-accent-soft: var(--teal-50);--color-accent-ring: color-mix(in srgb, var(--color-accent) 25%, transparent);--color-danger: var(--red-500);--color-danger-soft: color-mix(in srgb, var(--color-danger) 8%, transparent);--color-on-danger: #ffffff;--color-warning: var(--amber-500);--color-warning-soft: color-mix(in srgb, var(--color-warning) 10%, transparent);--color-overlay: color-mix(in srgb, var(--g-900) 20%, transparent);--color-hint-bg: color-mix(in srgb, var(--g-900) 88%, transparent);--color-hint-text: rgba(255, 255, 255, .88);--shadow-sm: 0 1px 2px rgba(20, 26, 25, .05);--shadow-md: 0 4px 16px -4px rgba(20, 26, 25, .1);--shadow-lg: 0 12px 32px -8px rgba(20, 26, 25, .16);--canvas-bg: #fafafa;--canvas-grid-minor: #a5a5a5;--canvas-grid-major: #000000;--canvas-ink: #1a1f27;--canvas-ink-muted: rgba(65, 80, 98, 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var(--d-600);--color-border: var(--d-500);--color-border-strong: var(--d-400);--color-text: var(--d-100);--color-text-secondary: var(--d-200);--color-text-muted: var(--d-300);--color-on-accent: var(--d-900);--color-hover: rgba(255, 255, 255, .05);--color-active: rgba(255, 255, 255, .09);--color-accent: var(--teal-400);--color-accent-hover: var(--teal-300);--color-accent-soft: color-mix(in srgb, var(--color-accent) 12%, transparent);--color-accent-ring: color-mix(in srgb, var(--color-accent) 30%, transparent);--color-danger: var(--red-400);--color-danger-soft: color-mix(in srgb, var(--color-danger) 12%, transparent);--color-on-danger: var(--d-900);--color-warning: var(--amber-400);--color-warning-soft: color-mix(in srgb, var(--color-warning) 14%, transparent);--color-overlay: rgba(0, 0, 0, .45);--color-hint-bg: rgba(13, 19, 18, .88);--color-hint-text: rgba(228, 237, 235, .9);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 16px -4px rgba(0, 0, 0, .5);--shadow-lg: 0 12px 32px 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#2a1515;--canvas-delete-hover-stroke: #f87171;--canvas-delete-hover-hatch: #ef4444;--canvas-handle-fill: #ffffff;--canvas-handle-stroke: #e74c3c;--canvas-door-pocket: #3a3320;--canvas-door-mouth: #7b8794;--canvas-ruler: #fb7185;--canvas-ruler-soft: rgba(251, 113, 133, .5);--canvas-pencil-graphite: #aab6c4;--canvas-pencil-red: #f08076;--canvas-pencil-blue: #82a8f0;--canvas-axis: #94a3b8;--canvas-axis-soft: rgba(148, 163, 184, .5);--canvas-area-bg: #1f2733;--canvas-area-stroke: #5c3d3d;--canvas-area-title: #f87171;--canvas-area-sub: #8b97a6;--canvas-area-height-stroke: #60a5fa;--canvas-area-height-text: #93c5fd;--canvas-area-shadow: rgba(0, 0, 0, .35);--canvas-angle-fill: rgba(180, 180, 180, .22);--canvas-angle-stroke: #f87171;--canvas-angle-suspect-fill: rgba(251, 191, 36, .26);--canvas-angle-suspect-stroke: #fbbf24;--canvas-room-fill: #2a3340;--canvas-pattern-fill: #ffffff;--canvas-pattern-stroke: #202020;--canvas-pattern-gypsum: #9aa6b5;--canvas-pattern-concrete-fill: 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svg{width:var(--btn-icon);height:var(--btn-icon);flex-shrink:0}.btn--xs{--btn-h: var(--control-h-xs);--btn-px: var(--control-px-xs);font-size:var(--text-12)}.btn--sm{--btn-h: var(--control-h-sm);--btn-px: var(--control-px-sm);font-size:var(--text-12)}.btn--md{--btn-h: var(--control-h-md);--btn-px: var(--control-px-md)}.btn--lg{--btn-h: var(--control-h-lg);--btn-px: var(--control-px-lg);font-size:var(--text-14)}.btn--primary{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-on-accent)}.btn--primary:hover{background:var(--color-accent-hover);border-color:var(--color-accent-hover)}.btn--secondary{background:var(--color-surface);border-color:var(--color-border-strong);color:var(--color-text)}.btn--secondary:hover{border-color:var(--color-text-muted)}.btn--ghost:hover{background:var(--color-hover);color:var(--color-text)}.btn--danger{color:var(--color-danger)}.btn--danger:hover{background:var(--color-danger-soft)}.btn:disabled{opacity:.4;cursor:default;pointer-events:none}.icon-btn{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:var(--iconbtn-size);height:var(--iconbtn-size);padding:0;border:0;border-radius:var(--radius-control);background:transparent;color:var(--color-text-secondary);cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast)}.icon-btn svg{width:var(--iconbtn-icon);height:var(--iconbtn-icon)}.icon-btn:hover{background:var(--color-hover);color:var(--color-text)}.icon-btn--active{background:var(--color-accent-soft);color:var(--color-accent)}.icon-btn--danger{color:var(--color-danger)}.icon-btn--danger:hover{background:var(--color-danger-soft);color:var(--color-danger)}.icon-btn:disabled{opacity:.35;cursor:default;pointer-events:none}.icon-btn--sm{--iconbtn-size: var(--control-h-sm);--iconbtn-icon: var(--icon-sm)}.field{display:block;margin-bottom:var(--space-5)}.field__label{display:block;margin-bottom:var(--space-2);font-size:var(--text-11);color:var(--color-text-muted)}.field-row{display:flex;gap:var(--space-4)}.field-row .field{flex:1}.field-row>.input{flex:1;min-width:0}.input{width:100%;height:var(--input-h);padding:0 var(--input-px);border:1px solid var(--color-border);border-radius:var(--input-radius);background:var(--color-surface-muted);color:var(--color-text);font-size:var(--text-13);transition:border-color var(--transition-fast),background var(--transition-fast)}.input:hover{border-color:var(--color-border-strong)}.input:focus{outline:none;background:var(--color-surface);border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-ring)}select.input,.wall-card__select,.wall-menu__select,.opening-menu__select{-webkit-appearance:none;-moz-appearance:none;appearance:none;padding-right:var(--space-7);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M3 4.5L6 7.5L9 4.5' stroke='%238d9a98' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--space-4) center}[data-theme=dark] select.input,[data-theme=dark] .wall-card__select,[data-theme=dark] .wall-menu__select,[data-theme=dark] .opening-menu__select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' 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var(--transition-fast)}.menu-item:hover:not(:disabled){background:var(--color-hover)}.menu-item--active{background:var(--color-accent-soft);color:var(--color-accent);font-weight:var(--weight-medium)}.menu-item--danger{color:var(--color-danger)}.menu-item--danger:hover:not(:disabled){background:var(--color-danger-soft)}.menu-item--action{color:var(--color-accent)}.menu-item--action:hover:not(:disabled){background:var(--color-accent-soft)}.menu-item:disabled{color:var(--color-text-muted);cursor:default}.menu-item--sm{--menu-item-h: var(--control-h-sm);font-size:var(--text-12)}.menu-item__icon{display:flex;flex-shrink:0;line-height:0}.menu-item__icon 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var(--transition-fast),color var(--transition-fast)}.nav-tree__row:hover{background:var(--color-hover);color:var(--color-text)}.nav-tree__row--active{background:var(--color-accent-soft);color:var(--color-accent);font-weight:var(--weight-medium)}.nav-tree__row--trail{color:var(--color-text)}.nav-tree__icon{display:flex;flex-shrink:0;line-height:0}.nav-tree__icon svg{width:var(--nav-icon);height:var(--nav-icon)}.nav-tree__label{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}.nav-tree__count{font-size:var(--text-11);color:var(--color-text-muted);font-variant-numeric:tabular-nums}.nav-tree__chevron{width:10px;font-size:var(--text-12);line-height:1;color:var(--color-text-muted);text-align:center}.nav-tree__sub{display:flex;align-items:center;width:100%;height:var(--nav-sub-h);padding:0 var(--space-4) 0 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var(--color-border);border-radius:var(--popover-radius);box-shadow:var(--shadow-lg)}.vis-menu__item{color:var(--color-text-muted)}.vis-menu__item--on{color:var(--color-text)}.vis-menu__switch{flex-shrink:0;position:relative;width:26px;height:14px;border-radius:var(--radius-round);background:var(--color-border);transition:background var(--transition-fast)}.vis-menu__switch:after{content:"";position:absolute;top:2px;left:2px;width:10px;height:10px;border-radius:50%;background:var(--color-surface);transition:transform var(--transition-fast)}.vis-menu__item--on .vis-menu__switch{background:var(--color-accent)}.vis-menu__item--on .vis-menu__switch:after{transform:translate(12px)}.sheet-toolbar{display:flex;align-items:center;gap:9px;flex-shrink:0;min-height:var(--control-h-md);padding:4px 12px;background:var(--color-surface);border-bottom:1px solid 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var(--transition-fast)}.sheet-toolbar__kind:hover{background:var(--color-surface-muted);color:var(--color-text)}.sheet-toolbar__kind--active{background:var(--color-accent-soft);color:var(--color-accent)}.sheet-toolbar__swatch{width:9px;height:9px;border-radius:var(--radius-1);background:var(--kind-accent, currentColor)}.sheet-toolbar__right{display:flex;align-items:center;gap:3px;margin-left:auto;flex-shrink:0}.sheet-toolbar__btn{display:inline-flex;align-items:center;gap:6px;padding:4px 9px;border:0;border-radius:var(--radius-2);background:transparent;color:var(--color-text-secondary);font:inherit;font-size:var(--font-size-sm);cursor:pointer;line-height:0;transition:background var(--transition-fast),color var(--transition-fast)}.sheet-toolbar__btn span{line-height:1}.sheet-toolbar__btn:hover{background:var(--color-surface-muted);color:var(--color-text)}.sheet-toolbar__btn--active{background:var(--color-accent-soft);color:var(--color-accent)}.sheet-toolbar__btn--danger:hover{color:var(--color-danger)}.popover-panel.dimension-menu-panel{top:auto;bottom:calc(100% + var(--space-4));min-width:180px;padding:var(--popover-px);animation:dimension-menu-in var(--dur-2) var(--ease-out)}@keyframes dimension-menu-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.dimension-menu__trigger{display:inline-flex;align-items:center;gap:var(--space-3);max-width:100%;height:var(--control-h-md);padding:0 var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-surface-muted);color:var(--color-text-secondary);font-size:var(--text-12);font-weight:var(--weight-medium);cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast),border-color var(--transition-fast)}.dimension-menu__trigger:hover{color:var(--color-text);background:var(--color-surface)}.dimension-menu__trigger--open{color:var(--color-accent);background:var(--color-accent-soft);border-color:var(--color-accent-ring)}.dimension-menu__trigger-label{color:inherit}.dimension-menu__trigger-value{color:var(--color-text-muted);font-weight:var(--weight-normal);max-width:7.5em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dimension-menu__trigger-value:before{content:"·";margin-right:var(--space-3);color:var(--color-border-strong)}.dimension-menu__chevron{flex-shrink:0;opacity:.7;transition:transform var(--transition-fast)}.dimension-menu__trigger--open .dimension-menu__chevron{transform:rotate(180deg)}@media (max-width: 720px){.dimension-menu__trigger-label{display:none}.dimension-menu__trigger-value:before{content:none;margin:0}}.catalog-strip{flex-shrink:0;background:var(--color-surface-muted);border-top:1px solid 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var(--space-4));z-index:100;min-width:260px;background:var(--color-surface-raised);border:1px solid var(--color-border);border-radius:var(--popover-radius);box-shadow:var(--shadow-lg);padding:var(--popover-px);animation:popover-in var(--dur-2) var(--ease-out)}.popover-panel--right{right:0}.popover-panel--left{left:0}@keyframes popover-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.drawer-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--color-overlay);z-index:200;opacity:0;pointer-events:none;transition:opacity var(--transition-normal)}.drawer-backdrop--open{opacity:1;pointer-events:auto}.drawer{position:fixed;top:0;right:0;bottom:0;width:min(400px,92vw);background:var(--color-surface);border-left:1px solid var(--color-border);box-shadow:var(--shadow-lg);z-index:201;display:flex;flex-direction:column;transform:translate(100%);transition:transform 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.input:focus{outline:none;border-color:var(--color-accent);background:var(--color-surface);color:var(--color-text);box-shadow:0 0 0 2px var(--color-accent-ring)}.wall-menu__value--select{grid-column:2 / span 2;justify-content:stretch}.wall-menu__select{width:100%;height:var(--control-h-md);box-sizing:border-box;padding:0 24px 0 8px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background-color:var(--color-surface-muted);color:var(--color-text);font-size:var(--font-size-sm);font-weight:500;line-height:28px;cursor:pointer;transition:border-color var(--transition-fast)}.wall-menu__select:hover{border-color:var(--color-border-strong)}.wall-menu__select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 2px var(--color-accent-ring)}.wall-menu__unit{display:flex;align-items:center;height:var(--control-h-md);color:var(--color-text-muted);line-height:1;white-space:nowrap}.wall-menu__row--stepper{grid-template-columns:minmax(0,1fr) 120px 28px}.wall-menu__stepper{display:grid;grid-template-columns:26px minmax(0,1fr) 26px;align-items:center;gap:4px;width:120px;min-width:0;height:var(--control-h-md);box-sizing:border-box}.wall-menu__stepper .wall-menu__value{justify-content:stretch;width:100%;min-width:0}.wall-menu__stepper .wall-menu__value .input{width:100%;min-width:0;text-align:center;padding:0 2px}.wall-menu__stepper-btn{width:26px;height:var(--control-h-md);box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;padding:0;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-muted);color:var(--color-text);font-size:var(--text-16);font-weight:500;line-height:1;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast)}.wall-menu__stepper-btn:hover:not(:disabled){border-color:var(--color-border-strong);background:var(--color-surface)}.wall-menu__stepper-btn:disabled{opacity:.4;cursor:default}.wall-menu__row--action{display:block;grid-template-columns:none;text-align:left;color:var(--color-text);background:transparent;border:none;cursor:pointer;font:inherit}.wall-menu__row--action:hover{background:var(--color-accent);color:var(--color-on-accent)}.stair-menu__row--stepper{grid-template-columns:minmax(0,1fr) 120px 28px}.stair-menu__row--stepper .opening-menu__label{min-width:0;overflow:hidden;text-overflow:ellipsis}.stair-menu__stepper{display:grid;grid-template-columns:22px minmax(0,1fr) 22px;align-items:center;gap:2px;width:120px;min-width:0;box-sizing:border-box}.stair-menu__stepper .opening-menu__value{min-width:0}.stair-menu__stepper .opening-menu__value .input{width:100%;min-width:0;text-align:center;padding:0 2px;box-sizing:border-box}.stair-menu__stepper-btn{width:22px;height:var(--control-h-sm);display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface-muted);color:var(--color-text);font-size:var(--text-14);line-height:1;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast)}.stair-menu__stepper-btn:hover:not(:disabled){border-color:var(--color-border-strong, var(--color-border));background:var(--color-surface)}.stair-menu__stepper-btn:disabled{opacity:.4;cursor:default}.stair-menu .stair-menu__text-action{display:flex;align-items:center;justify-content:flex-start;width:100%;border:none;border-bottom:1px solid var(--color-border);background:transparent;color:var(--color-text);font:inherit;font-weight:500;text-align:left;cursor:pointer;grid-template-columns:1fr}.stair-menu .stair-menu__text-action:hover{background:var(--color-surface-muted)}.stair-menu .opening-menu__row--toggle{grid-template-columns:auto 1fr}.stair-comment{position:fixed;z-index:42;width:280px;padding:12px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg, 12px);box-shadow:var(--shadow-lg) );font-size:var(--font-size-sm)}.stair-comment__head{margin-bottom:8px;font-weight:600;color:var(--color-text)}.stair-comment__input{display:block;width:100%;min-height:88px;margin:0 0 10px;padding:8px 10px;box-sizing:border-box;resize:vertical;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-muted);color:var(--color-text);font:inherit;line-height:1.4;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.stair-comment__input::placeholder{color:var(--color-text-muted)}.stair-comment__input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 2px var(--color-accent-ring)}.stair-comment__actions{display:flex;justify-content:flex-end;gap:8px}