#loader-container {
            position: fixed;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.8); /* Fondo blanco semi-transparente */
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            top: 0;
            left: 0;
            visibility:hidden;
        }
#container-principal{
	    position: fixed;
            width: 90%;
            height: 90%;
            background: rgba(255, 255, 255, 0.8); /* Fondo blanco semi-transparente */
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            top: 0;
            left: 0;
            visibility:visible;	
	}

#loader {
            border: 16px solid #f3f3f3;
            border-top: 16px solid #3498db;
            border-radius: 50%;
            width: 120px;
            height: 120px;
            animation: spin 2s linear infinite;
            visibility:hidden;
        }

@keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }