/* Hide amCharts logo/watermark */
g[opacity="0.4"] {
    display: none !important;
    visibility: hidden !important;
}

/* Alternative selectors for amCharts logo */
g[filter] {
    display: none !important;
}

/* Hide any amCharts branding links */
.amcharts-amexport-item,
.amcharts-amexport-item-level-0 {
    display: none !important;
}