#canvas-container { 
            width: 100vw; 
            height: 100vh; 
            position: relative; 
            overflow: hidden;
            --hover-color: #fff; 
        }

        /* Imagen de fondo con Parallax y transición de Blur */
        #background-sat {
            position: absolute;
            top: -5%; 
            left: -5%;
            width: 110%; 
            height: 110%;
            background-image: url('../../images/fondo_mapa_nodos.jpg'); /* REEMPLAZAR AQUÍ */
            background-size: cover;
            background-position: center;
            z-index: 0;
            filter: brightness(0.6) contrast(1.1) blur(0px); /* Estado inicial */
            pointer-events: none;
            will-change: transform, filter;
            transition: filter 0.6s ease; /* Transición suave para el desenfoque */
        }

        /* Cuando un nodo está activo, el fondo se desenfoca */
        #canvas-container.is-focused #background-sat {
            filter: brightness(0.4) contrast(1) blur(5px);
        }

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

        .node-label {
            background-color: rgba(0, 0, 0, 0.8);
            color: #ddd;
            padding: 6px 14px;
            border-radius: 2px;
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            text-decoration: none;
            position: absolute;
            white-space: nowrap;
            cursor: pointer;
            border: 1px solid rgba(255,255,255,0.2);
            transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                        background-color 0.3s, border-color 0.3s, box-shadow 0.3s;
            pointer-events: all;
            z-index: 10;
            --own-color: #fff;
        }

        .node-label:hover {
            transform: scale(1.4) !important;
            background-color: #000;
            border-color: var(--own-color) !important;
            box-shadow: 0 0 25px var(--own-color);
            z-index: 1000 !important;
        }

        .tooltip {
            position: absolute;
            background: rgba(255, 255, 255, 0.95);
            color: #000;
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 10px;
            pointer-events: none;
            opacity: 0;
            z-index: 2000;
            box-shadow: 0 5px 15px rgba(0,0,0,0.5);
            font-weight: bold;
        }

        .edge {
            stroke: rgba(255,255,255,0.15);
            stroke-width: 1.5px;
            fill: none;
            pointer-events: none;
        }

        .edge.highlight {
            stroke-width: 3.5px;
            stroke-opacity: 1;
            filter: url(#glow);
        }