#_Loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #ffffff; /* white screen */
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    z-index: 9999;
}

.spinner {
    position: relative;
    width: 80px;
    height: 80px;
}

.dot {
    position: absolute;
    width: 16px;
    height: 16px;
    background: #003366 !important; /* deep blue dot */
    border-radius: 50%;
    animation: dotFade 1.2s linear infinite;
}

    .dot:nth-child(1) {
        top: 0;
        left: 32px;
        animation-delay: 0s;
    }

    .dot:nth-child(2) {
        top: 11px;
        left: 55px;
        animation-delay: 0.15s;
    }

    .dot:nth-child(3) {
        top: 32px;
        left: 64px;
        animation-delay: 0.3s;
    }

    .dot:nth-child(4) {
        top: 55px;
        left: 55px;
        animation-delay: 0.45s;
    }

    .dot:nth-child(5) {
        top: 64px;
        left: 32px;
        animation-delay: 0.6s;
    }

    .dot:nth-child(6) {
        top: 55px;
        left: 11px;
        animation-delay: 0.75s;
    }

    .dot:nth-child(7) {
        top: 32px;
        left: 0px;
        animation-delay: 0.9s;
    }

    .dot:nth-child(8) {
        top: 11px;
        left: 11px;
        animation-delay: 1.05s;
    }

@keyframes dotFade {
    0% {
        opacity: 1;
        transform: scale(1.3);
    }

    100% {
        opacity: 0.2;
        transform: scale(1);
    }
}

.please-wait {
    margin-top: 20px;
    color: #003366; /* matching blue */
    font-size: 18px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}