#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
}
#loader.fade-out {
    opacity: 0;
    transition: opacity 0.5s ease-out;
    pointer-events: none;
}