*,*:before,*:after{box-sizing:border-box}html,body{min-height:100vh;width:100%}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;margin:0;padding:0;background-color:#f8f8f8}#root{width:100%;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center}.container{width:600px;margin:0 auto;padding:20px;background-color:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a}h1{color:#333;margin-top:0;margin-bottom:20px}ul{list-style:none;padding:0}li{margin-bottom:10px;display:flex;justify-content:space-between}button{padding:8px 16px;background-color:#333;color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background-color .3s ease}button:hover{background-color:#555}input[type=text]{padding:8px;border-radius:4px;border:1px solid #ccc;width:75%}input[type=text]:focus{outline:none;border-color:#555}.hr{border-top:1px solid #ccc;padding-top:20px}.my-20{margin:20px 0}.flex{display:flex}.justify-between{justify-content:space-between}.align-center{align-items:center}