.pi-login-btn,
.pi-inquiry-btn,
.pi-open-modal,
#pi-submit,
#pi-cancel{
    border:none;
    outline:none;
    cursor:pointer;
    padding:12px 20px;
    font-size:16px;
    border-radius:8px;
    transition:.3s;
}

.pi-login-btn{
    display:inline-block;
    background:#222;
    color:#fff;
    text-decoration:none;
}

.pi-login-btn:hover{
    opacity:.9;
    color:#fff;
}

.pi-inquiry-btn{
    background:#00af86 !important;
    color:#fff !important; 
    width: stretch;
    border-radius: 12px !important;
}
.pi-open-modal{
    background:#00af86 !important;
    color:#fff !important; 
    width: stretch;
    border-radius: 12px !important;
}

.pi-inquiry-btn:hover,
.pi-open-modal:hover{
    opacity:.9;
}

#pi-modal{
    display:none;
    position:fixed;
    z-index:999999;
    left:0;
    top:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,.6);
}

.pi-modal-content{
    width:90%;
    max-width:450px;
    background:#fff;
    margin:100px auto;
    padding:25px;
    border-radius:10px;
    box-sizing:border-box;
}

.pi-modal-content h3{
    margin-top:0;
    margin-bottom:20px;
    text-align:center;
}

.pi-modal-content input{
    width:100%;
    height:45px;
    margin-bottom:15px;
    padding:0 12px;
    box-sizing:border-box;
    border:1px solid #ddd;
    border-radius:6px;
    font-size:15px;
}

.pi-modal-content input:focus{
    border-color:#007cba;
}

.pi-modal-content div{
    display:flex;
    gap:10px;
}

#pi-submit{
    flex:1;
    background:#00af86;
    color:#fff;
}

#pi-submit:disabled{
    opacity:.5;
    cursor:not-allowed;
}

#pi-cancel{
    flex:1;
    background:#eee;
}

#pi-cancel:hover{
    background:#ddd;
}

@media(max-width:768px){

    .pi-modal-content{
        margin:50px auto;
    }

}