.nco-open-modal {
    padding: 20px;
    background: #16A34A;
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 16px;
    border-radius: 10px;
}
.nco-open-modal:hover {
    background: #13803d; /* darker shade for hover */
}

.nco-open-modal:hover {background:#005177;}
.nco-modal {display:none;position:fixed;z-index:1000;left:0;top:0;width:100%;height:100%;overflow:auto;background:rgba(0,0,0,0.6);}
.nco-modal-content {background:#fff;margin:5% auto;padding:20px;border-radius:8px;width:90%;max-width:500px;position:relative;box-shadow:0 5px 15px rgba(0,0,0,0.3);}
.nco-close {position:absolute;top:10px;right:15px;font-size:24px;font-weight:bold;color:#333;cursor:pointer;}
.nco-close:hover {color:#000;}
.nco-form input, .nco-form textarea, .nco-form select, .nco-form button {display:block;margin:10px 0;padding:8px;width:100%;box-sizing:border-box;border-radius:4px;border:1px solid #ccc;}
.nco-form button {background:#28a745;color:#fff;border:none;cursor:pointer;}
.nco-form button:hover {background:#218838;}
.nco-message {margin-top:15px;color:green;font-size:16px;}