.main-sidebar {
    background-image: linear-gradient(180deg, rgb(26 73 161) 0%, #3a0647 70%) !important;
}

.sidebar-dark-primary {
    background-color: rgba(0, 0, 0, 0.4) !important;
}
.main-header {
    background-color: #3e437a !important;
}
.navbar-light .navbar-nav .nav-link {
    color: #c2c7d0;
}
 .navbar-light .navbar-nav .nav-link:focus, .navbar-light .navbar-nav .nav-link:hover 
 {
      color:#fff;
 }
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8); /* Semi-transparent background */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999; /* Ensure it sits on top of all other elements */
}
.spinner {
    border: 16px solid silver;
    border-top: 16px solid #337AB7;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 700ms linear infinite;
    top: 40%;
    left: 55%;
    position: absolute;
}

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

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