body{background:#f5f5f5;margin:0;font-family:Arial,Helvetica,sans-serif}#root{justify-content:center;margin-top:80px;display:flex}.container{text-align:center;width:500px;margin:auto}h1{margin-bottom:30px}.input-area{gap:10px;margin-bottom:20px;display:flex}input{flex:1;padding:10px;font-size:16px}button{color:#fff;cursor:pointer;background:#646cff;border:none;border-radius:4px;padding:10px 15px}button:hover{opacity:.9}.task-list{padding:0;list-style:none}.task-list li{background:#f3f3f3;justify-content:space-between;align-items:center;margin-bottom:10px;padding:12px;display:flex}.actions{gap:10px;display:flex}