#backToTop {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(11, 91, 215, 0.3);
    display: none;
    /* hidden by default */
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: background-color 0.3s ease;
}

#backToTop:hover {
    background: #094bb8;
}