#scrollTopBtn {
    position: fixed;
    right: 88px;
    bottom: 22px;
    z-index: 9998;
    width: 48px;
    height: 48px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    background: linear-gradient( 135deg, var(--kepsas-navy), var(--kepsas-blue) );
    border: 0;
    border-radius: 50%;
    box-shadow: 0 8px 24px rgba(21, 94, 138, 0.24);
    font-size: 17px;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(12px) scale(.92);
    transition: opacity .2s ease, visibility .2s ease, transform .2s ease, background .2s ease, box-shadow .2s ease;
}


    #scrollTopBtn.show {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0) scale(1);
    }


    #scrollTopBtn:hover {
        background: linear-gradient( 135deg, var(--kepsas-blue), var(--kepsas-teal) );
        box-shadow: 0 10px 28px rgba(21, 94, 138, 0.30);
        transform: translateY(-2px) scale(1);
    }


    #scrollTopBtn:focus-visible {
        outline: 3px solid rgba(16, 155, 215, 0.28);
        outline-offset: 3px;
    }


    #scrollTopBtn i {
        pointer-events: none;
    }