html #edgeSelectionTools .edgeSelectionButtons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
html #edgeSelectionTools .edgeSelectionButtons button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:57px;padding:6px 3px;border:1px solid var(--ui-line,#d8e2e3);border-radius:7px;background:var(--ui-surface,#fff);color:var(--ui-ink,#263943);font:10px/1.25 system-ui;text-align:center}
.edge-group-icon{display:flex;align-items:center;justify-content:center;width:24px;height:24px}.edge-group-icon svg{display:block;width:24px;height:24px}
html #edgeSelectionTools .edgeSelectionButtons button[aria-pressed=true]{background:var(--ui-accent-soft,#deeee5);border-color:var(--ui-accent,#437c69)}
html #edgeSelectionTools .edgeSelectionButtons button:disabled{opacity:.35}
.edge-groups-note{font:10px/1.4 system-ui;color:var(--ui-muted,#617b80);margin:7px 0 0}