#ydp-box {
    background:#800020;
    border:2px solid #8b0000;
    padding:20px;
    border-radius:16px;
    max-width:420px;
    margin:20px auto;
    color:#fff;
    text-align:center;
}
#ydp-input {
    background:#6b001f;
    border:1px solid #8b0000;
    padding:10px;
    width:80%;
    border-radius:8px;
    color:#fff;
}
#ydp-btn {
    display:block;
    margin-top:10px;
    background:#2ea44f;
    color:#fff;
    padding:10px 18px;
    border:none;
    border-radius:10px;
    cursor:pointer;
}
#ydp-result {
    margin-top:10px;
    color:#fff;
    font-weight:600;
}