#custom-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.7);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

#custom-loader .spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #ccc;
    border-top: 5px solid #04548c;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}