#doremi-scroll-top {
    position: fixed;
    bottom: 32px;
    right: 28px;
    z-index: 9999;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, #EF1286, #2D53CB);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 18px rgba(239,18,134,.35);
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .3s ease, transform .3s ease, box-shadow .2s ease;
    pointer-events: none;
}
#doremi-scroll-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
#doremi-scroll-top:hover {
    box-shadow: 0 6px 24px rgba(239,18,134,.55);
    transform: translateY(-3px);
}
#doremi-scroll-top:active {
    transform: translateY(0);
}
@media (max-width: 600px) {
    #doremi-scroll-top {
        bottom: 20px;
        right: 16px;
        width: 42px;
        height: 42px;
    }
}