olute;
            width: 2px;
            height: 2px;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 50%;
        }

        .particle.connected {
            background: rgba(0, 123, 255, 0.6);
        }

        .connection {
            position: absolute;
            height: 1px;
            background: linear-gradient(90deg, rgba(0, 123, 255, 0.2), transparent);
            pointer-events: none;
        }

        .signup-section {
            min-height: 100vh;
        