.modal{position:absolute;top:50%;left:50%;right:auto;bottom:auto;transform:translate(-50%,-50%);background:#fff;padding:20px;border-radius:8px;max-width:500px;width:100%;box-shadow:0 5px 15px rgba(0,0,0,.3)}.overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:999;background-color:rgba(0,0,0,.75)}.form-group{margin-bottom:15px}.form-group label{display:block;margin-bottom:5px}.close-button{background:none;border:none;font-size:24px;cursor:pointer;position:absolute;right:4%;top:4%}.form-group input,.form-group textarea{width:100%;padding:8px;box-sizing:border-box;border:1px solid #ccc;border-radius:4px}.form-btn{padding:10px 20px;background-color:#c03e43;color:white;border:none;border-radius:4px;cursor:pointer;font-size:16px}@media (max-width:600px){.modal{width:90%;height:80%}}