body {
    margin: 0;
    overflow: hidden;
    background: #1a1a1a;
}

.container {
    position: relative;
    width: 100vw;
    height: 100vh;
}

.node {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #4CAF50;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 15px #4CAF50;
    z-index: 2;
}

.signal-wave {
    position: absolute;
    border: 2px solid #00bcd4;
    border-radius: 50%;
    animation: pulse 3s infinite;
    opacity: 0;
    transform: translate(-50%, -50%);
}

@keyframes pulse {
    0% {
        transform: scale(0.1) translate(-50%, -50%);
        opacity: 0.8;
    }
    100% {
        transform: scale(4) translate(-50%, -50%);
        opacity: 0;
    }
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

.connection-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(to right, #4CAF50 0%, transparent 100%);
    transform-origin: left center;
}