[class~="back-to-top"] {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, #2563eb, #10b981);
            color: #fff;
            border: none;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            z-index: 1000;
        }

        [class~="back-to-top"]:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
        }