/* Quiet mirrored engineering sketches, introduced by soft survey-point clusters. */
.structural-rails{position:absolute;top:0;left:0;width:100%;height:0;pointer-events:none;z-index:2;user-select:none;opacity:0;transition:opacity .3s ease}
.structural-rails[data-scrolled=true]{opacity:1}
.structural-rails[hidden]{display:none!important}
.structural-rail{position:absolute;display:block;overflow:visible;opacity:.28}
.structural-rail-right{transform:scaleX(-1)}
.structural-bay use,.structural-cloud{transform-box:fill-box;transform-origin:center;transition:opacity .55s ease-out,transform .65s cubic-bezier(.2,.7,.2,1)}
.structural-trace{stroke-dasharray:1;stroke-dashoffset:1;transition:opacity .4s ease-out,stroke-dashoffset .6s ease-out!important}
.structural-cloud{transition:opacity .55s ease-out,transform .7s cubic-bezier(.2,.7,.2,1)}
.structural-foundation{transition:opacity .55s ease-out}
@media(max-width:1499px){.structural-rails{display:none!important}}
@media(prefers-reduced-motion:reduce){.structural-rails,.structural-bay use,.structural-cloud,.structural-foundation{transition:none!important}}