/* SAME UI — no change needed */
.zhvp-wrapper {
    display:flex;
    justify-content:center;
    align-items:center;
    min-height:0px;
}

.zhvp-card {
    background:#fff;
    padding:35px;
    border-radius:15px;
    width:100%;
    max-width:420px;
    text-align:center;
    box-shadow:0 20px 40px rgba(0,0,0,0.3);
}

.zhvp-card input {
    width:100%;
    padding:14px;
    border-radius:10px;
    margin-bottom:15px;
}

.zhvp-card button {
    width:100%;
    padding:14px;
    background:#000;
    color:#fff;
    border-radius:10px;
}

.zh-success { color:green; }
.zh-warning { color:orange; }
.zh-error { color:red; }