.popup{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.5);justify-content:center;align-items:center}.popup.open{display:flex}.popup-inner{width:90%;background-color:white;padding:4%;border-radius:8px;box-shadow:0 0 10px rgba(0,0,0,.2);max-height:90%;overflow-y:auto}.close-btn{top:10px;right:10px;background:none;border:none;font-size:16px;cursor:pointer}form{display:flex;flex-direction:column}.form-group{margin-bottom:10px}label{font-weight:700}input{padding:8px;border:1px solid #ccc;border-radius:4px;width:100%;box-sizing:border-box}button[type=submit]{padding:10px 20px;background-color:#007bff;color:white;border:none;border-radius:4px;cursor:pointer}button[type=submit]:hover{background-color:#0056b3}