.assembly-diagram { margin-bottom:20px; }
.assembly-diagram-viewport { width:100%; overflow:auto; -webkit-overflow-scrolling:touch; }
.assembly-diagram-canvas { width:100%; }
.assembly-diagram-canvas svg { display:block; width:100%; height:auto; max-width:none; }
.assembly-diagram-tools { display:flex; justify-content:center; gap:8px; margin:8px 0; }
.assembly-diagram-tools button { min-width:44px; min-height:44px; cursor:pointer; }
.assembly-diagram a:hover rect, .assembly-diagram a:focus rect { fill:#55e2ff; }
@media print { .assembly-diagram-tools { display:none; } }