.back-to-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    display: flex;
    width: 45px;
    height: 45px;
    align-items: center;
    justify-content: center;
    transition: 0.5s;
    z-index: 99;
    background-color: #198754 !important;
    border-color: #ffffff !important;
}

.back-to-top:hover {
    background-color: #146c43 !important;
    border-color: #d4ff00 !important;
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(25, 135, 84, 0.3);
}

.back-to-top:active {
    background-color: #0f5132 !important;
    transform: translateY(-1px);
}