.fbb-btn {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background-color: #ead087; /* nuevo color */
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 26px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    z-index: 9999;
    transition: transform 0.2s ease-in-out;
    text-decoration: none;
}

.fbb-btn:hover {
    transform: scale(1.1);
    background-color: #d1b14d; /* un tono más oscuro del #ead087 para que se note el hover */
    color: #fff;
}