.sidebar{width:240px;flex-shrink:0;padding:var(--space-4);background:var(--bg-sidebar);border-right:1px solid var(--border);overflow-y:auto;box-shadow:var(--shadow-md)}.sidebar-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin-bottom:var(--space-5)}.sidebar-header-actions{display:flex;gap:var(--space-2);flex-shrink:0}.tour-btn{font-weight:var(--font-bold);font-size:var(--text-lg)}.sidebar-title{margin:0;font-size:var(--text-2xl);font-weight:var(--font-bold);color:var(--accent-dark);border-bottom:2px solid var(--accent);padding-bottom:var(--space-2);flex:1}.theme-toggle{flex-shrink:0;width:36px;height:36px;padding:0;border:1px solid var(--border);border-radius:8px;background:var(--bg-tool-btn);color:var(--text);font-size:var(--text-xl);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s ease,border-color .15s ease}.theme-toggle:hover{background:var(--bg-tool-btn-hover);border-color:var(--accent)}.compact-toggle.active{background:var(--accent-tint);border-color:var(--accent);color:var(--accent-dark)}.sidebar section{margin-bottom:var(--space-5);padding-bottom:var(--space-4);border-bottom:1px solid var(--border-subtle)}.sidebar section:last-of-type{border-bottom:none}.sidebar h2{margin:0 0 var(--space-2);font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text)}.dim-row{display:flex;align-items:center;gap:var(--space-2);margin-bottom:var(--space-2)}.dim-row label{font-size:var(--text-sm);color:var(--text-muted);min-width:14px}.dim-row input{flex:1;min-width:0}.floor-row{display:flex;gap:var(--space-2)}.floor-btn{flex:1;padding:var(--space-2) var(--space-3);border:1px solid var(--border);border-radius:8px;background:var(--bg-floor-btn);color:var(--text);cursor:pointer;font-size:var(--text-sm);transition:background .15s ease,border-color .15s ease}.floor-btn.active{border-color:var(--accent);background:var(--accent-tint);color:var(--accent-dark)}.tool-list{display:flex;flex-direction:column;gap:var(--space-2)}.tool-btn{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border:1px solid var(--border);border-left:4px solid var(--text-muted);border-radius:8px;background:var(--bg-tool-btn);color:var(--text);cursor:pointer;text-align:left;font-size:var(--text-base);transition:background .15s ease,border-color .15s ease}.tool-btn:hover{background:var(--bg-tool-btn-hover);border-color:var(--accent);box-shadow:var(--shadow-sm)}.tool-preview{width:36px;height:28px;flex-shrink:0;border-radius:4px;display:flex;align-items:center;justify-content:center;overflow:hidden}.tool-preview-svg svg{width:100%;height:100%;padding:var(--space-1)}.input{width:100%;padding:var(--space-2) var(--space-3);margin-bottom:var(--space-2);border:1px solid var(--border);border-radius:8px}.input[type=number]{font-variant-numeric:tabular-nums}background: var(--bg-tool-btn); color: var(--text); font-size: var(--text-md); transition: border-color .15s ease,box-shadow .15s ease; } .input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-tint)}.custom-row{display:flex;gap:var(--space-2);align-items:center}.color-input{width:40px;height:36px;padding:var(--space-1);border:1px solid var(--border);border-radius:8px;cursor:pointer;background:var(--bg-tool-btn)}.custom-row .btn{flex:1}.btn-row{display:flex;gap:var(--space-2)}.btn{flex:1;padding:var(--space-3) var(--space-4);border:none;border-radius:8px;font-weight:var(--font-semibold);cursor:pointer;font-size:var(--text-md);transition:background .15s ease,box-shadow .15s ease}.btn:not(.secondary){background:var(--accent);color:#fff}.btn:not(.secondary):hover{background:var(--accent-dark);box-shadow:var(--shadow-sm)}.btn.secondary{background:var(--border-subtle);color:var(--text)}.btn.secondary:hover,.btn.secondary.active{background:var(--border)}@media (max-width: 900px){.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border);max-height:48vh;padding:var(--space-3)}.sidebar-title{font-size:var(--text-xl)}.sidebar section{margin-bottom:var(--space-4);padding-bottom:var(--space-3)}.tool-btn{padding:var(--space-2) var(--space-3);font-size:var(--text-sm)}.btn{padding:var(--space-2) var(--space-3);font-size:var(--text-base)}.sidebar-header-actions{gap:var(--space-2)}}.tool{position:absolute;cursor:move;touch-action:none;border:1px solid var(--tool-outline);border-radius:4px;overflow:hidden;box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;transition:transform .15s ease-out}.tool.selected{outline:2px solid var(--accent);outline-offset:1px;box-shadow:var(--shadow-md)}.tool.dragging{cursor:grabbing;transition:none}.tool.resizing{transition:none}.tool-fill{position:absolute;top:0;right:0;bottom:0;left:0;opacity:.9}.tool-svg{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.tool-svg svg{width:100%;height:100%}.tool-label{position:absolute;bottom:2px;left:2px;right:2px;padding:2px 4px;background:var(--tool-label-bg);color:#fff;font-size:10px;text-align:center;z-index:2}.edit-btn{position:absolute;bottom:-6px;left:50%;transform:translate(-50%);z-index:10;background:var(--accent);color:#fff;width:26px;height:26px;border-radius:6px;border:1px solid var(--tool-outline);font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1}.edit-btn:hover{background:var(--accent-dark)}.rotate-btn,.delete-btn{position:absolute;width:26px;height:26px;border-radius:6px;border:1px solid var(--tool-outline);font-size:16px;cursor:pointer;z-index:10;display:flex;align-items:center;justify-content:center;line-height:1}.rotate-btn{top:-6px;left:-6px;background:var(--accent);color:#fff}.rotate-btn:hover{background:var(--accent-dark)}.delete-btn{top:-6px;right:-6px;background:#e74c3c;color:#fff}.delete-btn:hover{background:#c0392b}.resize-handle{position:absolute;z-index:5;touch-action:none;background:color-mix(in srgb,var(--accent) 35%,transparent);transition:background .12s ease}.resize-handle:hover{background:color-mix(in srgb,var(--accent) 70%,transparent)}.resize-handle.n{top:0;left:20px;right:20px;height:10px;cursor:n-resize}.resize-handle.s{bottom:0;left:20px;right:20px;height:10px;cursor:s-resize}.resize-handle.e{top:20px;bottom:20px;right:0;width:10px;cursor:e-resize}.resize-handle.w{top:20px;bottom:20px;left:0;width:10px;cursor:w-resize}.resize-handle.se,.resize-handle.sw,.resize-handle.ne,.resize-handle.nw{width:12px;height:12px;border-radius:2px}.resize-handle.se{bottom:0;right:0;cursor:se-resize}.resize-handle.sw{bottom:0;left:0;cursor:sw-resize}.resize-handle.ne{top:0;right:0;cursor:ne-resize}.resize-handle.nw{top:0;left:0;cursor:nw-resize}.edit-tool-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.edit-tool-modal{min-width:280px;padding:var(--space-6);background:var(--bg-tool-btn);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg)}.edit-tool-modal-title{margin:0 0 var(--space-5);font-size:var(--text-xl);font-weight:var(--font-semibold);color:var(--text)}.edit-tool-modal-fields{display:flex;flex-direction:column;gap:var(--space-4);margin-bottom:var(--space-6)}.edit-tool-modal-fields label{display:flex;align-items:center;gap:var(--space-3)}.edit-tool-modal-fields label span:first-child{min-width:56px;font-size:var(--text-md);color:var(--text)}.edit-tool-modal-fields input{flex:1;max-width:120px;padding:var(--space-3) var(--space-4);border:1px solid var(--border);border-radius:8px;background:var(--bg-sidebar);color:var(--text);font-size:var(--text-base);transition:border-color .15s ease,box-shadow .15s ease}.edit-tool-modal-fields input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-tint)}.edit-tool-unit{font-size:var(--text-base);color:var(--text-muted)}.edit-tool-modal-actions{display:flex;justify-content:flex-end;gap:var(--space-3)}.edit-tool-modal-actions .btn{padding:var(--space-3) var(--space-5);transition:background .15s ease,box-shadow .15s ease}.notes-box{width:100%;max-width:100%;flex-shrink:0;padding:var(--space-4) var(--space-6);margin-bottom:var(--space-4);background:var(--bg-tool-btn);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow-sm)}.notes-box-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-3)}.notes-box-header h3{margin:0;font-size:var(--text-md);font-weight:var(--font-semibold);color:var(--text)}.notes-hide-btn{width:28px;height:28px;padding:0;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text-muted);font-size:var(--text-xl);transition:background .15s ease,border-color .15s ease,color .15s ease;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}.notes-hide-btn:hover{background:var(--bg-tool-btn-hover);color:var(--text);border-color:var(--accent)}.notes-toolbar{display:flex;align-items:center;gap:var(--space-1);margin-bottom:var(--space-2)}.notes-toolbar button{width:32px;height:32px;padding:0;border:1px solid var(--border);border-radius:6px;background:var(--bg-sidebar);color:var(--text);font-size:var(--text-base);cursor:pointer;transition:background .15s ease,border-color .15s ease;display:flex;align-items:center;justify-content:center}.notes-toolbar button:hover{background:var(--bg-tool-btn-hover);border-color:var(--accent)}.notes-toolbar button b{font-weight:700;font-style:normal}.notes-toolbar button i{font-weight:400;font-style:italic}.notes-toolbar button u{font-weight:400;text-decoration:underline}.notes-toolbar-sep{width:1px;height:20px;background:var(--border);margin:0 var(--space-1)}.notes-editor{width:100%;min-height:80px;padding:var(--space-3) var(--space-4);border:1px solid var(--border);border-radius:8px;background:var(--bg-sidebar);color:var(--text);font-size:var(--text-md);font-family:inherit;line-height:var(--leading-normal);transition:border-color .15s ease,box-shadow .15s ease;box-sizing:border-box;overflow-y:auto}.notes-editor:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-tint)}.notes-editor:empty:before{content:attr(data-placeholder);color:var(--text-muted)}.notes-editor ul{margin:.5em 0;padding-left:1.5em}.canvas-area{flex:1;padding:var(--space-6);padding-bottom:60px;background:var(--bg-canvas);overflow:auto;display:flex;flex-direction:column;align-items:center;min-height:0;position:relative}.canvas-center-wrap{flex:1;display:flex;justify-content:center;align-items:center;min-height:0;overflow:auto;width:100%}.canvas-scroll-wrap{flex-shrink:0;overflow:hidden}.canvas-wrap{cursor:grab}.canvas-wrap.placing{cursor:crosshair}.shop-canvas{position:relative;border:2px solid var(--canvas-border);box-shadow:var(--shadow-lg),inset 0 0 0 1px #0000000a;background-image:linear-gradient(var(--canvas-grid) 1px,transparent 1px),linear-gradient(90deg,var(--canvas-grid) 1px,transparent 1px)}.floor-beige{background-color:var(--floor-beige)}.floor-concrete{background-color:var(--floor-concrete)}.floor-wood{background-color:var(--floor-wood)}.wall-feature{position:absolute;cursor:move;border:2px 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ease;display:flex;align-items:center;justify-content:center;line-height:1}.zoom-controls button:hover{background:var(--bg-tool-btn-hover);border-color:var(--accent)}.zoom-controls button:first-child{font-size:1.5em}.zoom-controls button:nth-child(2){min-width:52px;font-size:.85em}.zoom-controls{display:flex;gap:var(--space-1)}.zoom-bar{font-size:var(--text-sm);color:var(--text-muted)}.notes-show-btn{width:100%;flex-shrink:0;padding:var(--space-3) var(--space-6);margin-bottom:var(--space-4);border:1px dashed var(--border);border-radius:8px;background:transparent;color:var(--text-muted);font-size:var(--text-base);cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}.notes-show-btn:hover{background:var(--bg-tool-btn);color:var(--accent);border-color:var(--accent);border-style:solid}@media (max-width: 900px){.canvas-area{padding:var(--space-3);padding-bottom:70px}.canvas-center-wrap{align-items:flex-start;justify-content:flex-start}.zoom-bar-wrap{right:var(--space-3);bottom:var(--space-3);gap:var(--space-2)}.zoom-controls button{width:40px;height:40px;font-size:var(--text-lg)}.zoom-controls button:nth-child(2){min-width:58px;font-size:var(--text-sm)}}.welcome-modal{max-width:420px;padding:var(--space-6);margin:var(--space-5);background:var(--bg-tool-btn);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg)}.welcome-modal p{margin:0 0 var(--space-6);line-height:var(--leading-normal);color:var(--text)}.welcome-actions{display:flex;gap:var(--space-3);justify-content:flex-end}.welcome-actions .btn{transition:background .15s ease,box-shadow .15s ease}.welcome-actions .btn-primary:hover{background:var(--accent-dark);box-shadow:var(--shadow-sm)}.shepherd-button{background:#3288e6;border:0;border-radius:3px;color:#ffffffbf;cursor:pointer;margin-right:.5rem;padding:.5rem 1.5rem;transition:all .5s ease}.shepherd-button:not(:disabled):hover{background:#196fcc;color:#ffffffbf}.shepherd-button.shepherd-button-secondary{background:#f1f2f3;color:#000000bf}.shepherd-button.shepherd-button-secondary:not(:disabled):hover{background:#d6d9db;color:#000000bf}.shepherd-button:disabled{cursor:not-allowed}.shepherd-footer{border-bottom-left-radius:5px;border-bottom-right-radius:5px;display:flex;justify-content:flex-end;padding:0 .75rem .75rem}.shepherd-footer .shepherd-button:last-child{margin-right:0}.shepherd-cancel-icon{background:transparent;border:none;color:#808080bf;cursor:pointer;font-size:2em;font-weight:400;margin:0;padding:0;transition:color .5s ease}.shepherd-cancel-icon:hover{color:#000000bf}.shepherd-has-title .shepherd-content .shepherd-cancel-icon{color:#808080bf}.shepherd-has-title .shepherd-content .shepherd-cancel-icon:hover{color:#000000bf}.shepherd-title{color:#000000bf;display:flex;flex:1 0 auto;font-size:1rem;font-weight:400;margin:0;padding:0}.shepherd-header{align-items:center;border-top-left-radius:5px;border-top-right-radius:5px;display:flex;justify-content:flex-end;line-height:2em;padding:.75rem .75rem 0}.shepherd-has-title .shepherd-content .shepherd-header{background:#e6e6e6;padding:1em}.shepherd-text{color:#000000bf;font-size:1rem;line-height:1.3em;padding:.75em}.shepherd-text p{margin-top:0}.shepherd-text p:last-child{margin-bottom:0}.shepherd-content{border-radius:5px;outline:none;padding:0}.shepherd-element{background:#fff;border:none;border-radius:5px;box-shadow:0 1px 4px #0003;margin:0;max-width:400px;opacity:0;outline:none;padding:0;transition:opacity .3s,visibility .3s;visibility:hidden;width:100%;z-index:9999}.shepherd-enabled.shepherd-element{opacity:1;visibility:visible}.shepherd-element[data-popper-reference-hidden]:not(.shepherd-centered){opacity:0;pointer-events:none;visibility:hidden}.shepherd-element,.shepherd-element *,.shepherd-element :after,.shepherd-element :before{box-sizing:border-box}.shepherd-arrow,.shepherd-arrow:before{height:16px;position:absolute;width:16px;z-index:-1}.shepherd-arrow:before{background:#fff;content:"";transform:rotate(45deg)}.shepherd-element[data-popper-placement^=top]>.shepherd-arrow{bottom:-8px}.shepherd-element[data-popper-placement^=bottom]>.shepherd-arrow{top:-8px}.shepherd-element[data-popper-placement^=left]>.shepherd-arrow{right:-8px}.shepherd-element[data-popper-placement^=right]>.shepherd-arrow{left:-8px}.shepherd-element.shepherd-centered>.shepherd-arrow{opacity:0}.shepherd-element.shepherd-has-title[data-popper-placement^=bottom]>.shepherd-arrow:before{background-color:#e6e6e6}.shepherd-target-click-disabled.shepherd-enabled.shepherd-target,.shepherd-target-click-disabled.shepherd-enabled.shepherd-target *{pointer-events:none}.shepherd-modal-overlay-container{height:0;left:0;opacity:0;overflow:hidden;pointer-events:none;position:fixed;top:0;transition:all .3s ease-out,height 0s .3s,opacity .3s 0s;width:100vw;z-index:9997}.shepherd-modal-overlay-container.shepherd-modal-is-visible{height:100vh;opacity:.5;transform:translateZ(0);transition:all .3s ease-out,height 0s 0s,opacity .3s 0s}.shepherd-modal-overlay-container.shepherd-modal-is-visible path{pointer-events:all}.app-shell{display:flex;flex-direction:column;min-height:100vh;width:100%}.app{display:flex;flex:1;min-height:0}.mobile-notice{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;background:color-mix(in srgb,var(--accent) 14%,var(--bg-tool-btn));border-bottom:1px solid var(--border);color:var(--text);font-size:.92rem}.mobile-notice-text{line-height:1.35}.mobile-notice-close{flex-shrink:0;width:28px;height:28px;border:1px solid var(--border);border-radius:6px;background:var(--bg-tool-btn);color:var(--text-muted);cursor:pointer;font-size:1.1rem;line-height:1}.mobile-notice-close:hover{border-color:var(--accent);color:var(--text)}@media (max-width: 900px){.app{flex-direction:column}}.beta-banner{flex-shrink:0;display:flex;align-items:center;gap:12px;padding:10px 16px;background:linear-gradient(135deg,#00695c,#26a69a);color:#fff;font-size:.88rem;box-shadow:0 2px 8px #0003}.beta-banner-text{flex:1;line-height:1.4}.beta-banner-text a{color:#fff;font-weight:700;text-decoration:underline;text-underline-offset:2px}.beta-banner-text a:hover{opacity:.9}.beta-banner-close{background:none;border:1px solid rgba(255,255,255,.4);border-radius:50%;width:28px;height:28px;color:#fff;font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}.beta-banner-close:hover{background:#ffffff26}.welcome-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10000;display:flex;align-items:center;justify-content:center;background:#00000080;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.welcome-modal{max-width:460px;padding:var(--space-6);margin:var(--space-5);background:var(--bg-tool-btn);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg)}.welcome-modal h2{margin:0 0 var(--space-4);font-size:var(--text-2xl);font-weight:var(--font-semibold);color:var(--accent-dark)}.welcome-modal p{margin:0 0 var(--space-4);line-height:var(--leading-normal);color:var(--text)}.welcome-hint{font-size:var(--text-md);color:var(--text-muted)}.welcome-actions{display:flex;gap:var(--space-3);justify-content:flex-end;margin-top:var(--space-5)}.welcome-actions .btn{border:none;border-radius:8px;padding:var(--space-3) var(--space-5);font-size:var(--text-md);cursor:pointer;transition:background .15s ease,box-shadow .15s ease}.welcome-actions .btn-primary{background:var(--accent);color:#fff}.welcome-actions .btn-primary:hover{background:var(--accent-dark)}.welcome-actions .btn-secondary{background:var(--border-subtle);color:var(--text)}.welcome-actions .btn-secondary:hover{background:var(--border)}.help-page{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9000;background:var(--bg-canvas);color:var(--text);overflow:auto;padding:0}.help-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-6);border-bottom:1px solid var(--border);background:var(--bg-tool-btn);position:sticky;top:0;z-index:1;box-shadow:var(--shadow-md)}.help-header h1{margin:0;font-size:var(--text-2xl);font-weight:var(--font-semibold)}.help-close{width:36px;height:36px;border:1px solid var(--border);border-radius:50%;background:var(--bg-floor-btn);color:var(--text);font-size:var(--text-xl);cursor:pointer;transition:border-color .15s ease,color .15s ease;display:flex;align-items:center;justify-content:center}.help-close:hover{border-color:var(--accent);color:var(--accent)}.help-body{max-width:760px;margin:0 auto;padding:var(--space-6)}.help-body section{margin-bottom:var(--space-6)}.help-body h2{font-size:var(--text-xl);margin:0 0 var(--space-3);padding-bottom:var(--space-2);border-bottom:1px solid var(--border);font-weight:var(--font-semibold)}.help-body h3{font-size:var(--text-lg);margin:var(--space-4) 0 var(--space-2);font-weight:var(--font-semibold)}.help-body p{margin:0 0 var(--space-3);line-height:var(--leading-normal);color:var(--text)}.help-body ul{margin:0 0 var(--space-3);padding-left:var(--space-5)}.help-body li{margin-bottom:var(--space-2);line-height:1.45}.help-caveat{border-left:3px solid var(--accent);padding:var(--space-2) var(--space-3);margin:var(--space-2) 0 var(--space-4);background:var(--accent-tint);border-radius:0 8px 8px 0;font-size:var(--text-md)}.help-body table{width:100%;border-collapse:collapse;margin:var(--space-3) 0 var(--space-4);font-size:var(--text-md)}.help-body th,.help-body td{border:1px solid var(--border);padding:var(--space-2) var(--space-3);text-align:left}.help-body th{background:var(--bg-tool-btn);font-weight:var(--font-semibold)}.help-disclaimer-section{border:1px solid var(--border);border-radius:10px;padding:var(--space-4);background:var(--bg-tool-btn)}.help-disclaimer-section p{font-size:var(--text-base);color:var(--text-muted)}.help-created-by{border:1px solid var(--border);border-radius:10px;padding:var(--space-4);background:var(--bg-tool-btn);margin-top:var(--space-5)}.help-created-by a{color:var(--accent);text-decoration:none}.help-created-by a:hover{text-decoration:underline}.shortcuts-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9500;display:flex;align-items:center;justify-content:center;background:#0006;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.shortcuts-modal{max-width:360px;width:90%;background:var(--bg-tool-btn);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg);padding:var(--space-5)}.shortcuts-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4)}.shortcuts-header h2{margin:0;font-size:var(--text-xl);font-weight:var(--font-semibold);color:var(--text)}.shortcuts-close{width:32px;height:32px;padding:0;border:1px solid var(--border);border-radius:8px;background:var(--bg-floor-btn);color:var(--text-muted);font-size:var(--text-xl);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:border-color .15s ease,color .15s ease}.shortcuts-close:hover{border-color:var(--accent);color:var(--accent)}.shortcuts-list{display:flex;flex-direction:column;gap:var(--space-3)}.shortcuts-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.shortcuts-keys{display:flex;align-items:center;gap:var(--space-1)}.shortcut-key{padding:var(--space-1) var(--space-2);font-size:var(--text-xs);font-family:var(--font-sans);background:var(--bg-canvas);border:1px solid var(--border);border-radius:6px;color:var(--text);box-shadow:0 1px 0 var(--border)}.shortcuts-action{font-size:var(--text-sm);color:var(--text-muted);text-align:right}.shortcuts-hint{margin:var(--space-4) 0 0;padding-top:var(--space-3);border-top:1px solid var(--border-subtle);font-size:var(--text-xs);color:var(--text-muted)}.shortcuts-hint kbd{padding:2px 6px;font-size:.7em;background:var(--bg-canvas);border-radius:4px}.planner{display:grid;grid-template-columns:310px 1fr;min-height:100vh;max-width:1800px;width:100%;color:var(--text);background:var(--bg-canvas);box-shadow:-1px 0 0 var(--border),1px 0 0 var(--border)}.planner.mobile{grid-template-columns:1fr}.planner.mobile .planner-sidebar{position:fixed;top:0;left:0;width:min(320px,85vw);height:100vh;z-index:1000;transform:translate(-100%);transition:transform .25s ease;box-shadow:var(--shadow-lg)}.planner.mobile.sidebar-open .planner-sidebar{transform:translate(0)}.sidebar-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:999}.mobile-menu-btn{position:fixed;top:max(var(--space-2),env(safe-area-inset-top));left:max(var(--space-2),env(safe-area-inset-left));z-index:100;width:48px;height:48px;padding:0;border:1px solid var(--border);border-radius:10px;background:var(--bg-tool-btn);color:var(--text);font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);-webkit-tap-highlight-color:transparent;touch-action:manipulation}.mobile-menu-btn:hover{border-color:var(--accent);color:var(--accent)}.sidebar-close-btn{position:absolute;top:var(--space-2);right:var(--space-2);width:44px;height:44px;padding:0;border:1px solid var(--border);border-radius:10px;background:var(--bg-floor-btn);color:var(--text-muted);font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:1;-webkit-tap-highlight-color:transparent}.sidebar-close-btn:hover{border-color:var(--accent);color:var(--accent)}.sidebar-close-btn{touch-action:manipulation}.planner-sidebar{border-right:1px solid color-mix(in srgb,var(--border) 55%,transparent);padding:var(--space-4) var(--space-3) var(--space-4);background:var(--bg-canvas);overflow:auto;display:flex;flex-direction:column;box-shadow:var(--shadow-md)}.app-header{padding-bottom:var(--space-4);margin-bottom:var(--space-4);border-bottom:1px solid var(--border-subtle);flex-shrink:0;position:relative}.app-header h1{margin:0;font-size:var(--text-2xl);font-weight:var(--font-semibold);color:var(--accent-dark)}.app-header .subhead{color:var(--text-muted);margin:var(--space-1) 0 0;font-size:var(--text-sm);line-height:var(--leading-tight)}.app-header .shortcuts-trigger{position:absolute;top:0;right:0;width:36px;height:36px;padding:0;border:1px solid var(--border);border-radius:8px;background:var(--bg-floor-btn);color:var(--text-muted);font-size:var(--text-xs);font-family:var(--font-sans);cursor:pointer;transition:border-color .15s ease,color .15s ease}.app-header .shortcuts-trigger:hover{border-color:var(--accent);color:var(--accent)}.brand-credit{display:flex;align-items:center;gap:var(--space-3);margin-top:var(--space-3);padding-top:var(--space-3);border-top:1px solid var(--border-subtle)}.brand-logo{width:48px;height:48px;object-fit:contain;flex-shrink:0;filter:invert(0)}body.dark .brand-logo{filter:invert(1)}.brand-tagline{margin:0;font-size:var(--text-xs);color:var(--text-muted);line-height:var(--leading-snug)}.brand-tagline strong{color:var(--text)}.guide-note{border:1px solid var(--border);border-radius:10px;background:var(--bg-tool-btn);padding:var(--space-2);margin-bottom:var(--space-2);font-size:var(--text-sm);color:var(--text-muted);line-height:var(--leading-normal);flex-shrink:0}.card{border:1px solid var(--border);border-radius:12px;background:var(--bg-tool-btn);padding:var(--space-4);margin-bottom:var(--space-2);box-shadow:var(--shadow-sm)}.control-card{flex:1 1 0;display:flex;flex-direction:column}.card h2{margin:0 0 var(--space-2);font-size:var(--text-md);font-weight:var(--font-semibold)}.field-help{margin:0 0 var(--space-2);font-size:var(--text-sm);color:var(--text-muted)}.card label{display:flex;flex-direction:column;gap:var(--space-1);font-size:var(--text-base);margin-bottom:var(--space-2)}.card input,.card select{border:1px solid var(--border);border-radius:8px;padding:var(--space-2) var(--space-3);background:var(--bg-floor-btn);color:var(--text);transition:border-color .15s ease,box-shadow .15s ease}.card input[type=number]{font-variant-numeric:tabular-nums}.card input:focus,.card select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-tint)}.card .inline-check{flex-direction:row;align-items:center;gap:var(--space-2)}.room-mode-toggle{display:flex;gap:var(--space-4);margin-bottom:var(--space-2);flex-wrap:wrap}.room-tabs{display:flex;gap:var(--space-2);margin-bottom:var(--space-2);flex-wrap:wrap}.room-tabs button{border:1px solid var(--border);border-radius:8px;padding:var(--space-2) var(--space-3);background:var(--bg-floor-btn);color:var(--text);font-size:var(--text-sm);cursor:pointer;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:border-color .15s ease,background .15s ease}.room-tabs button.active{border-color:var(--accent);background:var(--accent-tint)}.room-add-btn{min-width:var(--space-8);font-weight:var(--font-bold);color:var(--accent)}.room-remove-btn{display:block;margin-bottom:var(--space-2);border:1px solid var(--border);border-radius:8px;padding:var(--space-2) var(--space-3);background:var(--bg-floor-btn);color:var(--text);font-size:var(--text-sm);cursor:pointer;transition:border-color .15s ease}.room-remove-btn:hover:not(:disabled){border-color:#c44}.room-remove-btn:disabled{opacity:.5;cursor:not-allowed}.template-picker{margin-top:var(--space-2)}.template-picker label{display:block;margin-bottom:var(--space-1);font-size:var(--text-sm)}.template-picker select{width:100%}.room-name-edit{display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-2);font-size:var(--text-base)}.room-name-edit input{border:1px solid var(--border);border-radius:8px;padding:var(--space-2) var(--space-3);background:var(--bg-floor-btn);color:var(--text);font-size:var(--text-base)}.vertex-editor-actions{display:flex;gap:var(--space-2);margin-bottom:var(--space-2)}.vertex-editor-actions button{border:1px solid var(--border);border-radius:8px;padding:var(--space-2) var(--space-3);background:var(--bg-floor-btn);color:var(--text);cursor:pointer;font-size:var(--text-sm);transition:border-color .15s ease,background .15s ease}.vertex-editor-actions button:hover:not(:disabled){border-color:var(--accent)}.vertex-editor-actions button.active{border-color:var(--accent);background:var(--accent-tint)}.vertex-editor-actions button:disabled{opacity:.5;cursor:not-allowed}.vertex-handle{position:absolute;border-radius:50%;background:var(--accent);border:2px solid var(--accent-dark);cursor:grab;z-index:10}.vertex-handle.selected{box-shadow:0 0 0 2px var(--accent-tint)}.vertex-handle:active{cursor:grabbing}.candidate-freeform-label{padding:var(--space-2);color:var(--text-muted);font-size:var(--text-base)}.feature-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--space-2)}.feature-actions button{border:1px solid var(--border);border-radius:8px;padding:var(--space-2);background:var(--bg-floor-btn);color:var(--text);cursor:pointer;font-size:var(--text-sm);transition:border-color .15s ease}.feature-actions button:disabled{opacity:.45;cursor:not-allowed}.feature-actions button:hover:not(:disabled){border-color:var(--accent)}.planner-main{display:flex;flex-direction:column;min-width:0}.top-toolbar{display:flex;align-items:stretch;border-bottom:1px solid var(--border);background:var(--bg-sidebar);box-shadow:var(--shadow-sm)}.candidate-strip{display:flex;gap:var(--space-2);padding:var(--space-2);overflow-x:auto;flex:1}.candidate-strip button{border:1px solid var(--border);background:var(--bg-tool-btn);color:var(--text);padding:var(--space-2) var(--space-3);border-radius:8px;min-width:160px;text-align:left;cursor:pointer;display:grid;gap:var(--space-1);font-size:var(--text-base);transition:border-color .15s ease,box-shadow .15s ease}.candidate-strip button:hover{border-color:var(--accent)}.candidate-strip button.active{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-tint)}.candidate-strip button span{color:var(--text-muted);font-size:var(--text-sm)}.toolbar-actions{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-left:1px solid var(--border);flex-shrink:0}.toolbar-actions button{border:1px solid var(--border);border-radius:8px;padding:var(--space-2) var(--space-3);background:var(--bg-tool-btn);color:var(--text);cursor:pointer;font-size:var(--text-sm);white-space:nowrap;transition:border-color .15s ease,color .15s ease}.toolbar-actions button:hover{border-color:var(--accent);color:var(--accent)}.toolbar-actions .help-btn{width:28px;height:28px;border-radius:50%;padding:0;display:flex;align-items:center;justify-content:center;color:var(--accent);font-weight:var(--font-bold);font-size:var(--text-md)}.workspace{display:grid;grid-template-columns:minmax(460px,1fr) minmax(280px,360px);gap:var(--space-3);padding:var(--space-3);min-height:0}.layout-canvas-wrap{position:relative;border:1px solid var(--border);border-radius:12px;background:var(--bg-tool-btn);padding:var(--space-4);display:grid;align-content:start;justify-items:center;gap:var(--space-2);overflow:auto;min-height:0;box-shadow:var(--shadow-md)}.canvas-viewport-slot{width:100%;max-width:100%;height:min(65vh,540px);min-height:280px;display:flex;align-items:center;justify-content:center;min-width:0;overflow:hidden;box-sizing:border-box}.canvas-controls{width:100%;display:grid;grid-template-columns:1.8fr repeat(4,1fr);gap:var(--space-2)}.canvas-controls select,.canvas-controls button{border:1px solid var(--border);border-radius:8px;padding:var(--space-2) var(--space-3);background:var(--bg-floor-btn);color:var(--text);font-size:var(--text-sm);transition:border-color .15s ease,box-shadow .15s ease}.canvas-controls select:focus,.canvas-controls button:focus{outline:none;border-color:var(--accent)}.canvas-controls button{cursor:pointer}.canvas-controls button:disabled{opacity:.45;cursor:not-allowed}.resize-controls{width:100%;display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border:1px solid var(--border);border-radius:8px;background:var(--bg-floor-btn);font-size:var(--text-sm)}.resize-controls strong{color:var(--text-muted);white-space:nowrap}.resize-controls label{display:inline-flex;align-items:center;gap:var(--space-1)}.resize-controls input{width:64px;border:1px solid var(--border);border-radius:8px;padding:var(--space-2);background:var(--bg-tool-btn);color:var(--text);font-variant-numeric:tabular-nums}.resize-controls span{color:var(--text-muted);font-variant-numeric:tabular-nums}.layout-canvas{position:relative;border:2px solid var(--canvas-border);border-radius:8px;background-image:linear-gradient(to right,var(--canvas-grid) 1px,transparent 1px),linear-gradient(to bottom,var(--canvas-grid) 1px,transparent 1px);background-size:28px 28px;background-color:var(--floor-concrete);overflow:hidden;box-shadow:inset 0 0 0 1px #0000000a,0 2px 8px #00000014}.layout-canvas-freeform{background:none}.canvas-polygon-svg{position:absolute;left:0;top:0;width:100%;height:100%;z-index:0}.canvas-empty-state{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);pointer-events:none;z-index:1}.canvas-empty-illus{width:140px;height:105px;color:var(--accent);opacity:.6}.canvas-empty-text{margin:0;font-size:var(--text-sm);color:var(--text-muted);font-weight:var(--font-medium)}.canvas-zoom-viewport{overflow:hidden;border-radius:8px;position:relative;touch-action:none;display:flex;align-items:center;justify-content:center;width:100%;height:100%;min-width:0;min-height:0}.canvas-zoom-controls{display:flex;justify-content:center;min-height:28px}.placed-tool{position:absolute;border:1px solid var(--tool-outline);border-radius:6px;color:#08332f;font-size:.7rem;padding:2px 3px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;overflow:visible;cursor:grab;-webkit-user-select:none;user-select:none;line-height:1.15;box-shadow:0 2px 6px #00000026}.placed-tool .tool-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-weight:600}.placed-tool .tool-dims{position:absolute;bottom:-11px;left:50%;transform:translate(-50%);font-size:.52rem;font-weight:500;white-space:nowrap;opacity:.8;color:var(--text);text-shadow:0 0 3px var(--bg-canvas),0 0 3px var(--bg-canvas),0 0 3px var(--bg-canvas);pointer-events:none;font-variant-numeric:tabular-nums}.placed-tool.selected{box-shadow:0 2px 8px #0003,0 0 0 2px #1d4ed8}body.dark .placed-tool{color:#dff7f3;box-shadow:0 2px 8px #0006}body.dark .placed-tool.selected{box-shadow:0 2px 10px #00000080,0 0 0 2px #1d4ed8}.zoom-reset-btn{border:1px solid var(--border);border-radius:8px;padding:var(--space-1) var(--space-3);background:var(--bg-floor-btn);color:var(--accent);cursor:pointer;font-size:var(--text-xs);font-weight:var(--font-medium);transition:border-color .15s ease,background .15s ease}.zoom-reset-btn:hover{border-color:var(--accent);background:var(--accent-tint)}.wall-feature{position:absolute;border:1px solid transparent;border-radius:3px;cursor:grab}.wall-feature.door{background:var(--door-bg);border-color:var(--door-border)}.wall-feature.window{background:var(--window-bg);border-color:var(--window-border)}.wall-feature.selected{box-shadow:0 0 0 2px #1d4ed8}.canvas-note{position:absolute;border:1px solid var(--border);border-radius:6px;background:#fef9c3;box-shadow:var(--shadow-sm);cursor:grab;-webkit-user-select:none;user-select:none;display:flex;align-items:center;justify-content:center;padding:var(--space-1) var(--space-2);font-size:var(--text-xs);line-height:1.2;overflow:hidden;text-overflow:ellipsis;color:#713f12}.canvas-note .canvas-note-text{overflow:hidden;text-overflow:ellipsis;white-space:pre-wrap;word-break:break-word;max-width:100%;max-height:100%;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;line-clamp:3}.canvas-note.selected{box-shadow:0 0 0 2px #1d4ed8}body.dark .canvas-note{background:#422006;color:#fef08a;border-color:#713f12}.note-char-count{font-size:var(--text-xs);color:var(--text-muted);margin-left:var(--space-1)}.canvas-meta{font-size:var(--text-sm);color:var(--text-muted);font-variant-numeric:tabular-nums}.tool-workbench{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:var(--space-2);margin-top:var(--space-1)}.tool-workbench-card{border:1px solid var(--border);border-radius:10px;background:var(--bg-floor-btn);padding:var(--space-4);box-shadow:var(--shadow-sm)}.tool-workbench-card h3{margin:0 0 var(--space-1);font-size:var(--text-md);font-weight:var(--font-semibold)}.tool-workbench-card label{display:flex;flex-direction:column;gap:var(--space-1);margin-bottom:var(--space-2);font-size:var(--text-sm)}.tool-workbench-card input,.tool-workbench-card select{border:1px solid var(--border);border-radius:8px;padding:var(--space-2);background:var(--bg-tool-btn);color:var(--text)}.notes-card{grid-column:1 / -1}.notes-card textarea{width:100%;border:1px solid var(--border);border-radius:8px;padding:var(--space-2);background:var(--bg-tool-btn);color:var(--text);font-family:inherit;font-size:var(--text-base);resize:vertical;min-height:60px;transition:border-color .15s ease,box-shadow .15s ease}.notes-card textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-tint)}.tool-grid{display:grid;gap:var(--space-2)}.tool-grid.compact{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--space-1) var(--space-2)}.tool-row{display:grid;grid-template-columns:1fr 60px;align-items:center;gap:var(--space-2)}.tool-count-row{display:flex;justify-content:space-between;align-items:center;padding:var(--space-1) 0;font-size:var(--text-sm)}.tool-count-badge{background:var(--accent-tint);color:var(--accent);border-radius:6px;padding:var(--space-1) var(--space-2);font-size:var(--text-xs);font-weight:var(--font-semibold);font-variant-numeric:tabular-nums}.inline-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-2)}.custom-tool-row{display:flex;align-items:flex-end;gap:var(--space-2);margin-bottom:var(--space-2)}.custom-tool-row label{flex:0 0 auto;margin-bottom:0}.custom-tool-row .primary-btn{flex:1 1 auto;min-width:0}.custom-error{margin:0 0 var(--space-1);font-size:var(--text-sm);color:#dc2626}.primary-btn{border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:8px;padding:var(--space-2) var(--space-3);cursor:pointer;font-size:var(--text-sm);transition:background .15s ease,box-shadow .15s ease,transform .15s ease}.primary-btn:hover{box-shadow:var(--shadow-sm);transform:translateY(-1px)}.insights{border:1px solid var(--border);border-radius:12px;background:var(--bg-tool-btn);padding:var(--space-4);overflow:auto;box-shadow:var(--shadow-sm)}.insights h2{margin:0 0 var(--space-2);font-size:var(--text-lg);font-weight:var(--font-semibold)}.insights h3{margin:var(--space-3) 0 var(--space-1);font-size:var(--text-md)}.insights p{margin:0;color:var(--text-muted);line-height:var(--leading-normal)}.insights ul{margin:0;padding-left:var(--space-5)}.insights li{margin-bottom:var(--space-1);font-size:var(--text-base)}.score-definitions{margin-top:var(--space-3);border:1px solid var(--border);border-radius:10px;padding:var(--space-2);background:var(--bg-floor-btn)}.score-grid{margin-top:var(--space-3);display:grid;grid-template-columns:1fr 1fr;gap:var(--space-2)}.score-grid>div{border:1px solid var(--border);border-radius:8px;padding:var(--space-2);background:var(--bg-floor-btn);font-size:var(--text-sm);display:grid;gap:var(--space-1)}.score-grid strong{font-size:var(--text-xs);color:var(--text-muted)}.small-note{margin-top:var(--space-3)!important;font-size:var(--text-sm)}.inline-disclaimer{margin-top:var(--space-3);padding:var(--space-2);border:1px solid var(--border);border-radius:8px;background:var(--bg-floor-btn);font-size:var(--text-xs);line-height:1.4;color:var(--text-muted)}.disclaimer-link{border:none;background:none;color:var(--accent);cursor:pointer;padding:0;font-size:inherit;text-decoration:underline}.notes-toolbar{display:flex;gap:var(--space-1);padding:var(--space-1) 0 var(--space-2);flex-wrap:wrap}.notes-toolbar button{border:1px solid var(--border);border-radius:6px;padding:var(--space-1) 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12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--bg-sidebar: #f5f6f8;--bg-canvas: #e8ecef;--bg-tool-btn: #fff;--bg-tool-btn-hover: #f0f4f8;--bg-floor-btn: #fff;--border: #ddd;--border-subtle: #e0e0e0;--text: #333;--text-muted: #666;--accent: #26a69a;--accent-dark: #00897b;--accent-tint: rgba(38, 166, 154, .1);--canvas-border: #6b5a3b;--canvas-grid: rgba(0, 0, 0, .06);--shadow: rgba(0, 0, 0, .1);--shadow-strong: rgba(0, 0, 0, .15);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .12);--tool-outline: rgba(0, 0, 0, .2);--tool-label-bg: rgba(0, 0, 0, .7);--floor-beige: #e0d8c4;--floor-concrete: #bdbdbd;--floor-wood: #a1887f;--door-border: #8b4513;--door-bg: #f5e1c8;--window-border: #87ceeb;--window-bg: #e0f7fa}body.dark{--bg-sidebar: #1e2328;--bg-canvas: #12161a;--border: #3a4149;--border-subtle: #2d3339;--bg-tool-btn: #252b32;--bg-tool-btn-hover: #2d3339;--bg-floor-btn: #252b32;--text: #e4e8ec;--text-muted: #9ca3ae;--accent: #2dd4bf;--accent-dark: #14b8a6;--accent-tint: rgba(45, 212, 191, .15);--canvas-border: #4a5568;--canvas-grid: rgba(255, 255, 255, .06);--shadow: rgba(0, 0, 0, .3);--shadow-strong: rgba(0, 0, 0, .45);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 2px 8px rgba(0, 0, 0, .25);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .35);--tool-outline: rgba(255, 255, 255, .25);--tool-label-bg: rgba(0, 0, 0, .75);--floor-beige: #8b7355;--floor-concrete: #6b7280;--floor-wood: #7d5e4a;--door-border: #a0522d;--door-bg: #4a3c2e;--window-border: #5a9fb5;--window-bg: #2a3d45}*{box-sizing:border-box}.tabular-nums{font-variant-numeric:tabular-nums}body{margin:0;font-family:var(--font-sans);-webkit-font-smoothing:antialiased;background:var(--bg-canvas);color:var(--text)}body.tt-dragging{-webkit-user-select:none;user-select:none;cursor:grabbing}#root{min-height:100vh;display:flex;justify-content:center;background:var(--bg-canvas)}.btn-primary{background:var(--accent);color:#fff;transition:background .15s ease,box-shadow .15s ease,transform .15s ease}.btn-primary:hover{background:var(--accent-dark);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.btn-secondary{background:var(--border-subtle);color:var(--text);transition:background .15s ease,border-color .15s ease}.btn-secondary:hover,.btn-secondary.active{background:var(--border)}.btn-ghost{background:transparent;color:var(--text);transition:background .15s ease,border-color .15s ease}.btn-ghost:hover{background:var(--bg-tool-btn-hover);border-color:var(--accent)}.shepherd-button{background:var(--accent)!important}.shepherd-button:not(:disabled):hover{background:var(--accent-dark)!important}.shepherd-element{background:var(--bg-tool-btn)!important}.shepherd-text{color:var(--text)!important}