.ncpro-auth-btn {
    position: relative;
}

/* Estilo Google exacto */
.ncpro-auth-btn-google {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    min-height: 40px;
    padding: 8px 12px;
    background: #fff;
    border: 1px solid #dadce0;
    border-radius: 4px;
    color: #3c4043;
    font-family: "Roboto", "Arial", sans-serif;
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.ncpro-auth-btn-google:hover {
    background: #f8f9fa;
    border-color: #d2d2d2;
}

.ncpro-auth-btn-google:active {
    background: #f1f3f4;
}

.ncpro-auth-btn-google svg {
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
}

.ncpro-auth-btn-google.is-loading {
    pointer-events: none;
    opacity: 0.9;
}

.ncpro-auth-btn-google.is-loading svg {
    opacity: 0;
    width: 0;
    margin: 0;
}

.ncpro-auth-btn-google .ncpro-auth-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid #dadce0;
    border-top-color: #4285F4;
    border-radius: 50%;
    display: inline-block;
    animation: ncpro-auth-spin 0.8s linear infinite;
}

@keyframes ncpro-auth-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}