body{font-family:sans-serif;background-color:#f4f4f4;display:flex;justify-content:center;padding-top:50px}.App{width:100%;max-width:500px;background:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 4px #0000001a}h1{text-align:center}form{display:flex;margin-bottom:20px}input[type=text]{flex:1;padding:10px;border:1px solid #ddd;border-radius:4px}button{padding:10px 15px;border:none;background-color:#28a745;color:#fff;border-radius:4px;cursor:pointer;margin-left:10px}.todos .todo{display:flex;justify-content:space-between;align-items:center;padding:10px;border-bottom:1px solid #eee}.todos .todo .task{cursor:pointer}.todos .todo .task.is-complete{text-decoration:line-through;color:#888}.todos .todo .delete-btn{background-color:#dc3545;color:#fff;border:none;padding:5px 10px;border-radius:4px;cursor:pointer}