:root{--primary-bg: #f4f7f9;--secondary-bg: #ffffff;--primary-text: #333;--accent-color: #007bff;--border-color: #dee2e6;--shadow-color: rgba(0, 0, 0, .1);--danger-color: #dc3545;--danger-hover-bg: #c82333}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--primary-bg);color:var(--primary-text);overflow:hidden}#root{display:flex;height:100vh;width:100vw}.app-container{display:flex;width:100%;height:100%}.main-content{flex-grow:1;display:flex;flex-direction:column;height:100vh;overflow:hidden}.top-toolbar{display:flex;gap:8px;padding:6px 8px;background-color:#f8f9fa;border-bottom:1px solid var(--border-color);flex-shrink:0;flex-wrap:wrap;z-index:4}.primary-actions-toolbar{display:flex;gap:8px;padding:8px;background-color:var(--secondary-bg);border-bottom:1px solid var(--border-color);flex-shrink:0;align-items:center;box-shadow:0 2px 4px var(--shadow-color);z-index:5}.toolbar-separator{width:1px;height:32px;background-color:var(--border-color);margin:0 4px}.view-mode-select{padding:10px 12px;font-size:.95rem;border:1px solid var(--border-color);border-radius:8px;background-color:#fff;cursor:pointer;transition:border-color .2s}.view-mode-select:hover{border-color:#aab}.view-mode-select:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 2px #007bff33}.sub-toolbar{display:flex;gap:8px;padding:6px 8px;background-color:#f8f9fa;border-bottom:1px solid var(--border-color);flex-shrink:0;align-items:center}.sub-toolbar button{padding:6px 12px;font-size:.9rem;border:1px solid var(--border-color);border-radius:6px;background-color:#fff;cursor:pointer;transition:background-color .2s,border-color .2s;display:flex;align-items:center;gap:8px}.sub-toolbar button:hover{background-color:#e9ecef;border-color:#ced4da}.sub-toolbar button:disabled{opacity:.5;cursor:not-allowed}.sub-toolbar .wall-thickness-control{display:flex;align-items:center;gap:8px;margin-left:20px}.sub-toolbar .wall-thickness-control label{font-size:.9rem;color:var(--primary-text)}.sub-toolbar .wall-thickness-control input{width:60px;padding:4px 6px;border:1px solid var(--border-color);border-radius:4px;text-align:right;font-size:.9rem}.info-tooltip{position:relative;display:flex;align-items:center;cursor:help;color:var(--accent-color)}.info-tooltip .fa-solid{font-size:1.2rem}.info-tooltip .tooltip-text{visibility:hidden;width:350px;background-color:#333;color:#fff;text-align:left;border-radius:6px;padding:12px;position:absolute;z-index:10;bottom:140%;left:50%;transform:translate(-50%);opacity:0;transition:opacity .3s;font-size:.85rem;line-height:1.4;white-space:pre-wrap;box-shadow:0 4px 8px #0003;pointer-events:none}.info-tooltip .tooltip-text.visible{visibility:visible;opacity:1}.info-tooltip .tooltip-text:after{content:"";position:absolute;left:50%;margin-left:-5px;border-width:5px;border-style:solid;top:100%;border-color:#333 transparent transparent transparent}.info-tooltip .tooltip-text.position-below{bottom:auto;top:140%}.info-tooltip .tooltip-text.position-below:after{top:auto;bottom:100%;border-color:transparent transparent #333 transparent}.toolbar{width:280px;background-color:var(--secondary-bg);border-right:1px solid var(--border-color);padding:16px;display:flex;flex-direction:column;gap:16px;box-shadow:2px 0 5px var(--shadow-color);z-index:10;flex-shrink:0;overflow-y:auto}.toolbar h1{font-size:1.5rem;margin:0 0 16px;text-align:center}.tool-group{border-top:1px solid var(--border-color);padding-top:16px}.tool-group:first-of-type{border-top:none;padding-top:0}.tool-group h2{font-size:1rem;margin:0 0 8px;color:var(--accent-color);padding-bottom:4px}.tool-button{position:relative;display:flex;align-items:center;gap:12px;width:100%;padding:12px;margin-bottom:8px;background-color:transparent;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;text-align:left;cursor:pointer;transition:background-color .2s,box-shadow .2s,color .2s,border-color .2s;box-sizing:border-box;color:var(--primary-text)}.tool-button:hover{background-color:#e9ecef}.tool-button.active{background-color:var(--accent-color);color:#fff;border-color:var(--accent-color);box-shadow:0 2px 4px #007bff4d}.tool-button.active .fa-solid{color:#fff}.tool-button .fa-solid{width:20px;text-align:center;color:#555}.tool-button.danger{border-color:var(--danger-color);color:var(--danger-color)}.tool-button.danger .fa-solid{color:var(--danger-color)}.tool-button.danger:hover{background-color:var(--danger-color);color:#fff}.tool-button.danger:hover .fa-solid{color:#fff}.top-toolbar .tool-button,.primary-actions-toolbar .tool-button{width:48px;height:48px;justify-content:center;margin-bottom:0}.top-toolbar .tool-button span,.primary-actions-toolbar .tool-button span{display:none}.top-toolbar .tool-button .fa-solid,.primary-actions-toolbar .tool-button .fa-solid{width:auto;font-size:1.5rem}.tool-button-container{position:relative}.tool-submenu{position:absolute;top:100%;left:0;background-color:var(--secondary-bg);border:1px solid var(--border-color);border-radius:8px;box-shadow:0 4px 8px var(--shadow-color);z-index:20;padding:4px;margin-top:4px;display:flex;flex-direction:column;gap:4px;min-width:180px}.tool-submenu button{display:flex;align-items:center;gap:10px;padding:10px 14px;background:none;border:none;width:100%;box-sizing:border-box;text-align:left;cursor:pointer;border-radius:6px;font-size:.95rem;transition:background-color .2s}.tool-submenu button:hover{background-color:#e9ecef}.tool-submenu button .fa-solid{width:20px;text-align:center;color:#555}.tool-button[data-tooltip]:after{content:attr(data-tooltip);position:absolute;bottom:-32px;left:50%;transform:translate(-50%);background-color:#333;color:#fff;padding:4px 8px;border-radius:4px;font-size:.85rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;white-space:nowrap;opacity:0;visibility:hidden;transition:opacity .1s ease-in-out;pointer-events:none;z-index:100}.tool-button[data-tooltip]:hover:after{opacity:1;visibility:visible}.canvas-container{flex-grow:1;position:relative;background-color:var(--primary-bg);overflow:hidden;cursor:crosshair}.canvas-container.panning{cursor:grabbing}canvas{position:absolute;top:0;left:0;background-color:var(--secondary-bg)}.text-editor-textarea{position:absolute;text-align:center;background:#ffffffe6;border:1px solid var(--accent-color);border-radius:4px;padding:0;margin:0;font-family:Arial,sans-serif;resize:none;overflow:hidden;white-space:pre-wrap;box-shadow:0 2px 8px #00000026;z-index:20;box-sizing:border-box}.text-editor-textarea:focus{outline:none}.sticky-note-textarea{position:absolute;border:none;padding:8px;font-family:Comic Sans MS,cursive,sans-serif;font-weight:700;line-height:1.4;color:#333;resize:none;overflow-y:auto;box-shadow:0 4px 12px #0003;z-index:20;box-sizing:border-box;border-radius:0;outline:none}.sticky-note-textarea:focus{box-shadow:0 0 0 2px var(--secondary-bg),0 0 0 4px var(--accent-color)}.action-buttons{margin-top:auto;display:flex;flex-direction:column;gap:10px}.action-buttons .tool-button{margin-bottom:0}.status-picker{display:flex;justify-content:space-between;gap:8px}.status-picker button{flex-grow:1;padding:8px;font-size:.9rem;border:1px solid var(--border-color);border-radius:6px;background-color:#fff;cursor:pointer;transition:all .2s;color:var(--primary-text);display:flex;align-items:center;justify-content:center;gap:8px}.status-picker button:hover{background-color:#e9ecef}.status-picker button.active{background-color:var(--accent-color);color:#fff;border-color:var(--accent-color)}.status-picker button .fa-solid{line-height:1}.file-input-label{margin-bottom:8px}.opacity-slider{display:flex;flex-direction:column;gap:8px;font-size:.9rem}.opacity-slider input[type=range]{width:100%;cursor:pointer}.abbreviations-select{width:100%;padding:10px;border-radius:8px;border:1px solid var(--border-color);font-size:1rem;background-color:#fff;box-sizing:border-box;color:var(--primary-text)}.properties-panel{background-color:#f8f9fa;border:1px solid var(--border-color);border-radius:8px;padding:12px;font-size:.9rem}.properties-panel.active{border-left:3px solid var(--accent-color)}.properties-panel .placeholder-text{color:#6c757d;font-style:italic;text-align:center;margin:8px 0}.property-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.property-row:last-child{margin-bottom:0}.property-row-column{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.property-row-column input,.property-row-column textarea{width:100%;padding:6px 8px;border:1px solid var(--border-color);border-radius:4px;box-sizing:border-box;font-size:.95rem}.property-row-column textarea{resize:vertical;min-height:40px}.property-row label,.property-row>span:first-child{font-weight:500;margin-right:8px}.property-row input,.property-row select{width:100px;padding:6px;border:1px solid var(--border-color);border-radius:4px;text-align:right;box-sizing:border-box}.property-row .action-button{width:auto;flex-grow:1;text-align:center;padding:6px 10px;border:1px solid var(--border-color);background-color:#fff;cursor:pointer;border-radius:4px}.property-row .action-button:hover{background-color:#e9ecef}.property-row input[type=color]{padding:2px;height:30px}.property-row input[type=checkbox]{width:18px;height:18px;flex-shrink:0;cursor:pointer;accent-color:var(--accent-color)}#project-title{width:100%;text-align:left}.display-options{display:flex;flex-direction:column;gap:8px}.checkbox-row{display:flex;align-items:center;gap:8px;padding:4px;border-radius:4px}.checkbox-row:hover{background-color:#f8f9fa}.checkbox-row input[type=checkbox]{width:16px;height:16px;cursor:pointer;accent-color:var(--accent-color)}.checkbox-row label{cursor:pointer;font-size:.95rem;flex-grow:1;-webkit-user-select:none;user-select:none}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background-color:var(--secondary-bg);border-radius:12px;width:90%;box-shadow:0 4px 20px var(--shadow-color);display:flex;flex-direction:column;overflow:hidden}.modal-content.symbol-modal{max-width:800px;height:auto;max-height:85vh}.modal-content.export-modal{max-width:600px;height:auto;max-height:90vh}.modal-header{padding:16px 24px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;flex-shrink:0;gap:16px}.modal-header h2{margin:0;font-size:1.5rem;flex-shrink:0}.symbol-search-input{flex-grow:1;padding:8px 12px;border:1px solid var(--border-color);border-radius:6px;font-size:1rem}.symbol-search-input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 2px #007bff33}.modal-header .close-button{background:none;border:none;font-size:2rem;cursor:pointer;color:#888;line-height:1;flex-shrink:0}.modal-body{padding:24px;overflow-y:auto;min-height:0}.symbol-category h3{font-size:1.2rem;color:var(--accent-color);margin-top:0;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid var(--border-color)}.symbol-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px;margin-bottom:24px}.symbol-item{display:flex;flex-direction:column;align-items:center;border:1px solid var(--border-color);border-radius:8px;padding:12px;cursor:pointer;transition:all .2s ease;background-color:#fff;text-align:center;font-size:1rem;width:100%}.symbol-item:hover{border-color:var(--accent-color);box-shadow:0 2px 8px #007bff33;transform:translateY(-2px)}.symbol-preview{width:100%;height:80px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}.symbol-preview canvas{position:static;background-color:transparent;max-width:100%;max-height:100%;object-fit:contain}.symbol-info{display:flex;flex-direction:column}.symbol-short{font-weight:700;font-size:1rem}.symbol-long{font-size:.85rem;color:#6c757d}.no-results-text{text-align:center;color:#6c757d;padding:32px;font-style:italic}.export-info-box{background-color:var(--primary-bg);border-radius:6px;padding:12px 16px;margin-bottom:24px;border-left:4px solid var(--accent-color)}.export-info-box p{margin:4px 0}.export-settings-grid{display:grid;grid-template-columns:1fr;gap:24px}@media (min-width: 500px){.export-settings-grid{grid-template-columns:1fr 1fr}}.export-settings-group h3{font-size:1.1rem;color:var(--primary-text);margin-top:0;margin-bottom:16px;padding-bottom:8px;border-bottom:1px solid var(--border-color)}.modal-footer{padding:16px 24px;border-top:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;flex-shrink:0;background-color:#f8f9fa}.modal-footer .secondary-button{padding:10px 16px;font-size:1rem;background-color:#6c757d;color:#fff;border:none;border-radius:8px;cursor:pointer;transition:background-color .2s}.modal-footer .secondary-button:hover{background-color:#5a6268}.export-buttons-group{display:flex;gap:8px}.export-buttons-group .tool-button{width:auto;height:auto;padding:10px 16px;flex-direction:row;align-items:center;justify-content:center;gap:8px;margin-bottom:0}.export-buttons-group .tool-button span{display:inline;font-size:.95rem}.export-buttons-group .tool-button .fa-solid{width:auto;font-size:1.1rem}.sub-toolbar .color-picker-control{display:flex;align-items:center;gap:8px}.sub-toolbar .color-picker-control input[type=color]{width:32px;height:32px;border:none;padding:0;cursor:pointer;background-color:transparent;border-radius:4px}.sub-toolbar .opacity-control{display:flex;align-items:center;gap:8px;min-width:150px}.sub-toolbar .pattern-picker{display:flex;align-items:center;gap:4px;border:1px solid var(--border-color);border-radius:6px;padding:2px;background-color:#fff}.sub-toolbar .pattern-picker button{width:36px;height:36px;padding:4px;border-radius:4px;border:2px solid transparent;background-color:transparent;cursor:pointer;transition:all .2s}.sub-toolbar .pattern-picker button:hover{background-color:#e9ecef}.sub-toolbar .pattern-picker button.active{border-color:var(--accent-color);background-color:#def}.sub-toolbar .pattern-picker button svg{width:100%;height:100%}