#device-loader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
}

#device-loader.active {
    display: flex;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #ddd;
    border-top: 4px solid #333;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}
body {
    transition: opacity 0.3s ease;
}

body.loading {
    opacity: 0;
}
#device-loader {
    transition: opacity 0.2s ease;
}
#device-loader.active {
    backdrop-filter: blur(4px);
}