#secuseek-loader {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.7);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.secuseek-inline-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60px;
}
.secuseek-spinner {
    border: 8px solid #f3f3f3;
    border-top: 8px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: secuseek-spin 1s linear infinite;
}
@keyframes secuseek-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}