.loading-overlay {
    position: fixed;
    inset: 0;
    background: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}
.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #d1d5db;
    border-top-color: #055ee2;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
.loading-text {
    margin-top: 16px;
    color: #055ee2;
    font-weight: 500;
}