.slider-menu {
    font-family: 'Poppins', Arial, Helvetica, sans-serif;
    color: rgba(255, 255, 255, 0.5);
    position: fixed;
    top: 25%;
    left: 5%;
    transform: translateX(-50%);
    z-index: 400;
    width: 70px;
}

.slider-menu ul {
    display: flex;
    flex-direction: column;
    list-style: none;
    padding: 0;
    display: flex;
    gap: 10px;
}

.slider-menu li {
    cursor: pointer;
    padding: 10px 0px;
    transition: background-color 0.3s;
    text-align: center;
}

.slider-menu li.active {
    color: #fff;
    border-bottom: 2px solid #ecf0f1;
    transition: all 0.5s ease;
}