    /* ===============================
       INDICADOR DE CARGA
    =============================== */
    .loading-indicator {
        display: none;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 2000;
        background: rgba(255, 255, 255, 0.95);
        padding: 20px 30px;
        border-radius: 12px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
        text-align: center;
        animation: fadeIn 0.3s ease;
    }

    .loading-spinner {
        width: 40px;
        height: 40px;
        border: 4px solid #f3f3f3;
        border-top: 4px solid #1976d2;
        border-radius: 50%;
        animation: spin 1s linear infinite;
        margin: 0 auto 15px;
    }

    .loading-text {
        font-weight: 600;
        color: #333;
        font-size: 0.95rem;
    }

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

        100% {
            transform: rotate(360deg);
        }
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
        }

        to {
            opacity: 1;
        }
    }