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.role-btn.is-active{background:var(--blue);color:#fff}.sign-studio .layer-bridges{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--muted);margin-top:4px}.sign-studio .bridge-auto{display:flex;align-items:center;gap:5px}.sign-studio .bridge-scale{display:flex;align-items:center;gap:6px;flex:1 1 auto}.sign-studio .bridge-scale input[type=range]{flex:1 1 auto;height:20px}.sign-studio .bridge-scale-val{flex:0 0 auto;width:26px;text-align:right}.sign-studio .layers-foot{border-top:1px solid var(--border);padding:8px;display:flex;flex-direction:column;gap:8px}.sign-studio .layers-group-btn{align-self:flex-start;padding:5px 12px;border-radius:7px;background:var(--blue);color:#fff;font-weight:600}.sign-studio .layers-group-btn:disabled{background:var(--border-strong);color:var(--faint)}.sign-studio .layers-groups{display:flex;flex-wrap:wrap;gap:6px}.sign-studio .group-chip{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--border-strong);border-radius:8px;padding:2px 4px 2px 8px;background:var(--surface)}.sign-studio .group-chip-name{border:none;background:transparent;font-size:11px;color:var(--text);font-weight:600;padding:0}.sign-studio .group-chip-name:focus{outline:1px solid var(--blue);border-radius:3px}.sign-studio .group-chip-n{font-size:10px;color:var(--muted);background:var(--bg);border-radius:8px;padding:0 5px}.sign-studio .group-chip-x{width:16px;height:16px;display:grid;place-items:center;color:var(--faint);font-size:9px;border-radius:4px}.sign-studio .group-chip-x:hover{color:var(--red)}.sign-studio .zoom-toolbar.zoom-toolbar--left{left:18px;right:auto}