.w3f-form button {
    width: 100%;
    padding: 14px;
    background: #007bff;
    color: #fff;
    border: none;
    border-radius: 12px !important;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}
.w3f-form button:hover {
    background: #0056b3;
}
@media (max-width: 480px) {
    .w3f-form button {
        font-size: 12px;
        padding: 10px;
    }
}