#svg-layer path {
    stroke-width: 2.5;
    fill: none;
    transition: stroke 0.2s ease;
}

.wire {
    stroke: var(--low);
    opacity: 0.5;
    cursor: pointer;
}

.wire:hover {
    stroke-width: 3.5;
    opacity: 1;
}

.wire.high {
    stroke: var(--high);
    opacity: 1;
    filter: drop-shadow(0 0 5px var(--high));
}

.wire.high.animated {
    stroke-dasharray: 8 6;
    animation: flow 0.6s linear infinite;
}

@keyframes flow {
    0% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -14; }
}

.wire.low {
    stroke: var(--low);
    opacity: 0.5;
}

.wire-preview {
    stroke: var(--accent);
    stroke-width: 2;
    stroke-dasharray: 5 5;
    opacity: 0.6;
    pointer-events: none;
}

.wire.selected {
    stroke-width: 4;
    opacity: 1;
    filter: drop-shadow(0 0 8px currentColor);
}