/* Full-screen overlay with blur */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backdrop-filter: blur(2px); /* blur background */
    background-color: rgba(0,0,0,0.2); /* semi-transparent dark overlay */
    z-index: 9998; /* behind loader */
}

.loader {
    width: 60px; /* bigger base size */
    height: 60px;
    background: #ffffff;
    border-radius: 50%;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 1s infinite;
    z-index: 9999;
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }

    50% {
        transform: translate(-50%, -50%) scale(1.6);
        opacity: 0.5;
    }
    /* bigger pulse */
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}