/* Overlay de carga global ORVIX (navegación y envíos de formulario) */
.sunat-loading-overlay,
.erp-loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: color-mix(in srgb, var(--color-bg-main, #ffffff) 88%, transparent);
    backdrop-filter: blur(2px);
    display: none;
    align-items: center;
    justify-content: flex-start;
    flex-direction: column;
    padding-top: max(72px, 12vh);
    padding-left: 16px;
    padding-right: 16px;
    box-sizing: border-box;
    overflow-y: auto;
}

.sunat-loading-overlay.is-visible,
.erp-loading-overlay.is-visible {
    display: flex;
}

.sunat-loading-box,
.erp-loading-box {
    text-align: center;
    padding: 28px 36px;
    border-radius: 12px;
    background: var(--color-bg-surface, #fff);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    border: 1px solid var(--color-border, #e0e0e0);
    max-width: 90%;
    flex-shrink: 0;
}

.sunat-loading-box .fa-spinner,
.erp-loading-box .fa-spinner {
    color: var(--color-primary, #667eea);
    margin-top: 16px;
}

.sunat-loading-box p,
.erp-loading-box p {
    margin: 0;
    font-weight: 600;
    color: var(--color-text, #333);
    font-size: 1.05rem;
    line-height: 1.4;
}

.erp-loading-spinner {
    width: 44px;
    height: 44px;
    margin: 16px auto 0;
    border: 4px solid color-mix(in srgb, var(--color-primary, #667eea) 18%, transparent);
    border-top-color: var(--color-primary, #667eea);
    border-radius: 50%;
    animation: erp-loading-spin 0.85s linear infinite;
}

@keyframes erp-loading-spin {
    to { transform: rotate(360deg); }
}