#cmb-float-reward-btn {
    position: fixed;
    bottom: 30px;
    right: 25px;
    background: linear-gradient(135deg, #ff3e3e, #ff6b00);
    color: #fff;
    padding: 14px 18px;
    font-size: 15px;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.25);
    z-index: 9999;
    transition: all 0.3s ease;
    font-weight: 600;
}

#cmb-float-reward-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.35);
}

#cmb-float-reward-btn.success {
    background: linear-gradient(135deg, #06d6a0, #1b9c85);
}

#cmb-float-reward-btn.error {
    background: linear-gradient(135deg, #f00, #b30000);
}