#stt-btn-f984c9bc {
    position: fixed;
    z-index: 9999;
    border: none;
    outline: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

#stt-btn-f984c9bc svg {
    width: 50%;
    height: 50%;
}

#stt-btn-f984c9bc:hover {
    filter: brightness(1.1);
    transform: translateY(-3px);
}

/* Animations */
#stt-btn-f984c9bc.stt-anim-fade.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

#stt-btn-f984c9bc.stt-anim-slide {
    transform: translateY(20px);
}
#stt-btn-f984c9bc.stt-anim-slide.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}
#stt-btn-f984c9bc.stt-anim-slide:hover {
    transform: translateY(-3px);
}

/* Mobile Visibility */
@media (max-width: 768px) {
    #stt-btn-f984c9bc.stt-hide-mobile {
        display: none !important;
    }
}