.loader {
    display: inline-block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1001; /* Ensure it's above the overlay */
}

.loader:after {
    content: " ";
    display: block;
    width: 40px;
    height: 40px;
    margin: 8px;
    margin-left: 32px;
    margin-top: 25px;
    border-radius: 50%;
    border: 6px solid #fff;
    border-color: #5a8dee transparent #5a8dee transparent;
    animation: loader 0.7s linear infinite;
    text-align: center;
}

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

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

/* Backdrop */
.backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    // background-color: rgba(0, 0, 0, 0.5); /* semi-transparent black */
    z-index: 999; /* Ensure it's above other content */
}