#preloader {
    position: fixed;
    inset: 0;
    background: #fafafa;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}
#preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.preloader-mark {
    position: relative;
    width: 88px;
    height: 88px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.preloader-mark img {
    width: 46px;
    height: 46px;
    position: relative;
    z-index: 2;
}
.preloader-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid rgba(36, 132, 204, 0.15);
    border-top-color: #2484cc;
    animation: preloader-spin 0.9s linear infinite;
}
@keyframes preloader-spin {
    to { transform: rotate(360deg); }
}