.signal-overlay,.signal-node-halo{pointer-events:none}
.signal-halo,.signal-core{fill:none;stroke-linecap:round;vector-effect:non-scaling-stroke}
.signal-halo{stroke:#ff7a12;stroke-width:5;filter:blur(2px);opacity:.8}
.signal-core{stroke:#ffe3c7;stroke-width:1.7}
.signal-node-halo{fill:none;stroke:#ffb678;stroke-width:1.4;filter:drop-shadow(0 0 5px #ff7a12);vector-effect:non-scaling-stroke}
@media(prefers-reduced-motion:reduce){.signal-overlay,.signal-node-halo{display:none}}