/* Light sweep is visible only in response to hover or keyboard focus. */
.button--beam::after,.donate-button::after{position:absolute;z-index:0;top:-20%;bottom:-20%;left:-65%;width:38%;content:"";background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);transform:skewX(-22deg);opacity:0;pointer-events:none}
.button--beam:hover::after,.button--beam:focus-visible::after,.donate-button:hover::after{opacity:1;animation:bm-button-beam 760ms ease-out both}
@keyframes bm-button-beam{from{left:-65%}to{left:140%}}