   right: 2rem;
            background: var(--primary-gradient);
            color: white;
            padding: 0.8rem;
            border-radius: 50%;
            text-decoration: none;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
        }

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