html,body,#root{width:100%;height:100%;min-height:100vh;margin:0;padding:0}body{background:#f5f7fa;font-family:Arial,sans-serif}#root{flex-direction:column;display:flex}.ifc-viewer-shell{min-height:calc(100vh - 66px)}.ifc-viewer-sidebar,.ifc-viewer-properties{min-height:0}@media (width<=1280px){.ifc-viewer-shell{grid-template-columns:240px minmax(0,1fr) 280px}}@media (width<=1100px){.ifc-viewer-shell{grid-template-columns:1fr;height:auto;min-height:auto}.ifc-viewer-sidebar,.ifc-viewer-properties{height:auto}}@media (width<=900px){.ifc-viewer-shell{gap:8px;padding:8px}.ifc-viewer-sidebar,.ifc-viewer-properties{padding:12px}}