.grecaptcha-badge { visibility: hidden; }

/* Target the wrapper div Google injects around the challenge iframe */
div:has(> iframe[src*="recaptcha"][src*="bframe"]) {
    position: fixed !important;
    top: 50% !important;
    left: 50% !important;
    margin: 0 !important;
    border: none !important;
    box-shadow: none !important;
    transform: translate(-50%, -50%) !important;
}