body {
    background: #f7f9fe;
}
.loading-overlay {
    position: fixed;
    inset: 0;
    background: #fff;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.6s ease;
    pointer-events: auto;
    overflow: hidden;
}
.loading-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}
.main-content {
    display: none;
}
.main-content.show {
    display: block;
}