.hk-press-feedback {
    --hk-feedback-color: #7bd5f0;
    animation: hk-monitor-press 0.4s cubic-bezier(0.22, 0.7, 0.25, 1) both !important;
    outline: 3px solid var(--hk-feedback-color) !important;
    outline-offset: -3px;
    pointer-events: none;
    transform-origin: center;
}
.hk-press-feedback.mutation-pending { opacity: 1; }
.hk-press-feedback.hk-feedback-success { --hk-feedback-color: #54df91; }
.hk-press-feedback.hk-feedback-error { --hk-feedback-color: #ff8989; }
@keyframes hk-monitor-press {
    0% { transform: scale(1); filter: brightness(1); }
    22% { transform: scale(0.975); filter: brightness(1.18); }
    70% { transform: scale(0.988); filter: brightness(1.12); }
    100% { transform: scale(1); filter: brightness(1.04); }
}
@media (prefers-reduced-motion: reduce) {
    .hk-press-feedback { animation: none !important; }
}