.lb-tool-layout{display:grid;grid-template-columns:var(--rail-w, 380px) 1fr;height:calc(100vh - var(--header-h))}.lb-rail{overflow-y:auto;border-right:1px solid var(--border);background:var(--panel-3);padding:12px;min-width:0}.lb-viewport{position:relative;min-width:0}.lb-viewport canvas{display:block;touch-action:none}.lb-overlay{position:absolute;left:12px;bottom:12px;right:12px;display:flex;align-items:center;gap:10px;pointer-events:none}.lb-overlay>*{pointer-events:auto}.lb-overlay-tr{position:absolute;top:12px;right:12px;display:flex;flex-direction:column;gap:6px;align-items:flex-end}.lb-overlay-bl{position:absolute;left:12px;bottom:12px;background:#17181cbf;border:1px solid var(--border);border-radius:var(--r-sm);padding:6px 10px;font:400 12px/1.5 var(--font-num);color:var(--muted)}.lb-overlay-chip{background:var(--panel);border:1px solid var(--border);border-radius:var(--r-sm);padding:5px 9px;font-size:12px}.cat-label,.units-label{font:600 10.5px/1.3 var(--font-num);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:10px 2px 5px}.cat-row{display:flex;flex-wrap:wrap;gap:6px}.picker-btn{font:600 12.5px/1.2 var(--font-ui);padding:6px 12px;border-radius:var(--r-pill);border:1px solid var(--border-strong);background:var(--panel-2);color:var(--text);cursor:pointer}.picker-btn.active{background:var(--accent);border-color:var(--accent);color:#17181c}.picker-btn.small{padding:4px 10px;font-size:11.5px}.control{margin:10px 2px 4px}.control label{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:3px}.control label .val{color:var(--text);font-family:var(--font-num);font-variant-numeric:tabular-nums}.control input[type=range]{width:100%;accent-color:var(--accent)}.toggle-row{display:flex;align-items:center;gap:8px;margin:10px 2px 4px;font-size:13px}.toggle-row input{accent-color:var(--accent)}.text-input{width:100%;font:inherit;font-size:12.5px;padding:7px 9px;border-radius:var(--r-md);border:1px solid var(--border-strong);background:var(--panel-2);color:var(--text)}.row{display:flex;align-items:center;gap:8px;margin:8px 0;font-size:13px}.row label{flex:1;color:var(--muted)}.row .val{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--text)}input.dim{width:76px;font:500 12.5px var(--font-num);font-variant-numeric:tabular-nums;text-align:right;padding:6px 8px;border-radius:var(--r-sm);border:1px solid var(--border-strong);background:var(--panel-2);color:var(--text)}input.dim:focus{outline:none;border-color:var(--accent)}input.dim.bad,input.bad{border-color:var(--bad)}select{font:inherit;font-size:12.5px;padding:6px 8px;border-radius:var(--r-sm);border:1px solid var(--border-strong);background:var(--panel-2);color:var(--text)}details.lb-group,.lb-rail details{background:var(--panel);border:1px solid var(--border);border-radius:var(--r-md);margin-bottom:8px;padding:8px 10px}details.lb-group summary,.lb-rail details summary{cursor:pointer;font-size:13px;font-weight:600;user-select:none}.muted{color:var(--muted)}input[type=range]{accent-color:var(--accent)}.lb-sheet-toggle{display:none;position:fixed;top:10px;right:10px;z-index:10;font:700 12.5px/1 var(--font-ui);padding:10px 14px;border-radius:var(--r-pill);border:1px solid var(--border-strong);background:var(--panel);color:var(--text);cursor:pointer}@media(max-width:900px){.lb-tool-layout{display:flex;flex-direction:column;height:auto;min-height:100dvh}.lb-viewport{order:1;height:53dvh;min-height:0}.lb-rail{order:2;width:100%;height:auto;max-height:47dvh;border-right:none;border-top:1px solid var(--border);padding-bottom:calc(14px + env(safe-area-inset-bottom))}body.panel-hidden .lb-rail{display:none}body.panel-hidden .lb-viewport{height:calc(100dvh - var(--header-h))}.lb-sheet-toggle{display:block}.lb-header.compact{height:auto;min-height:var(--header-h);flex-wrap:wrap;padding:8px 12px;gap:10px}.lb-header .lb-nav{display:none}.picker-btn{padding:8px 14px}.control input[type=range]{height:28px}}