/* Add these styles to your existing CSS */
 .overlay-container {
    position: relative;
    width: 100%;
    height: 100vh;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.overlay.active {
    display: flex;
    opacity: 1;
}

.loader {
    width: 16px;
    height: 16px;
    box-shadow: 0 30px, 0 -30px;
    border-radius: 4px;
    background: currentColor;
    display: block;
    margin: -50px auto 0;
    position: relative;
    color: #FFF;
    transform: translateY(30px);
    box-sizing: border-box;
    animation: animloader 2s ease infinite;
}

.loader::after,
.loader::before {
    content: '';
    box-sizing: border-box;
    width: 16px;
    height: 16px;
    box-shadow: 0 30px, 0 -30px;
    border-radius: 4px;
    background: currentColor;
    color: #FFF;
    position: absolute;
    left: 30px;
    top: 0;
    animation: animloader 2s 0.2s ease infinite;
}

.loader::before {
    animation-delay: 0.4s;
    left: 60px;
}

@keyframes animloader {
    0% {
        top: 0;
        color: white;
    }

    50% {
        top: 30px;
        color: rgba(255, 255, 255, 0.2);
    }

    100% {
        top: 0;
        color: white;
    }
}