/* Tool-specific shop layout; shared styles remain unchanged. */
.ru-tool .piece-fields {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
.ru-tool .piece-row {margin-top:20px;padding-top:12px;border-top:1px solid #ddd;}
.ru-tool .piece-row .remove-piece {margin-top:12px;}
.ru-tool #diagrams {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.ru-tool figure {margin:0;min-width:0;}
.ru-tool figcaption {font-weight:bold;margin-bottom:8px;}
.ru-tool .sheet-diagram {display:block;width:100%;height:auto;max-height:480px;background:#fafafa;border:1px solid #555;}
.ru-tool figure .ru-help {overflow-wrap:anywhere;}
@media(max-width:650px){.ru-tool #diagrams {grid-template-columns:1fr;}}