#pwcf-open {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    color: #fff;
    padding: 14px 22px;
    border-radius: 30px;
    font-weight: bold;
    cursor: pointer;
    z-index: 9999;
    border: none;
}

.pwcf-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
}

.pwcf-box {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    padding: 25px;
    width: 90%;
    max-width: 420px;
    border-radius: 8px;
    z-index: 10000;
}

.pwcf-box h3 {
    text-align: center;
    margin-bottom: 15px;
}

.pwcf-box input,
.pwcf-box select,
.pwcf-box textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
}

.pwcf-box button {
    width: 100%;
    background: #25D366;
    color: #fff;
    padding: 12px;
    border: none;
    font-size: 16px;
}

.pwcf-close {
    float: right;
    font-size: 22px;
    cursor: pointer;
}