*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:#020631;color:#fff}.app{max-width:600px;margin:20px auto;padding:35px;border-radius:10px;background-color:#ffffff1a;box-shadow:0 4px 6px #0000001a}.header{text-align:center;margin-bottom:20px}.header h1{font-size:2.5rem;margin-bottom:5px}.header h2{font-size:1.2rem;color:#ffffffb3}.input{display:flex;align-items:center}.input input{flex:1;height:40px;padding:0 10px;border:none;border-radius:5px 0 0 5px;font-size:1.2rem;background-color:#fff3;color:#fff}.input button{font-size:1.2rem;height:40px;width:40px;background-color:#bfbee9e6;border:none;border-radius:0 5px 5px 0;color:#fff;cursor:pointer}.input button :focus,.input button :hover{color:#161ebd}.todos{margin-top:20px}.todo{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;border-radius:5px;background-color:#57606fe6;box-shadow:0 2px 4px #0000001a;transition:background-color .3s ease}.todo label{flex:1;font-size:1.2rem}.todo.checked{background-color:#8395a7e6}.todo:hover{background-color:#718093e6}.left{display:flex;align-items:center;cursor:pointer}.left input[type=checkbox]{margin-right:10px;width:30px;height:30px}.left label{flex:1;font-size:1.2rem;color:#fff}.right{cursor:pointer}.right svg{width:30px;height:30px;color:#000}.right svg:focus,.right svg:hover{color:red}@media screen and (max-width: 600px){.app{padding:10px}}