body{margin:0;background:#101820;color:#e6eee9;font:16px system-ui}main{max-width:480px;margin:8vh auto;padding:28px;background:#192630;border:1px solid #30433f;border-radius:20px}h1{font-size:30px}label{display:block;margin:20px 0 6px}input,select,button{box-sizing:border-box;width:100%;padding:13px;border-radius:8px;border:1px solid #40554e;font:inherit}input,select{background:#101820;color:#e6eee9}button{margin-top:18px;background:#58deba;color:#10251f;font-weight:700;cursor:pointer}p{line-height:1.5;color:#adbdba}button:disabled{opacity:.5}#message{min-height:48px}