:root {
          --light-yellow: #FFD54F;
            --primary-orange: #FF9800;
            --light-orange: #FFB74D;
           
        }
        /* Back to Top Button */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-orange);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            z-index: 999;
            box-shadow: 0 4px 15px rgba(255, 152, 0, 0.3);
        }
        
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background: var(--light-orange);
            transform: translateY(-3px);
        }