.back-to-top {
            position: fixed;
            right: 25px;
            bottom: 25px;
            width: 50px;
            height: 50px;
            border: none;
            border-radius: 50%;
            background: #1730c0;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
            z-index: 9999;

            opacity: 0;
            visibility: hidden;
            transform: translateY(15px);
            transition: all 0.3s ease;
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            transform: translateY(-3px);
        }

        @media (max-width: 576px) {
            .back-to-top {
                width: 45px;
                height: 45px;
                right: 15px;
                bottom: 15px;
                font-size: 18px;
            }
        }