//* *{
    margin: 0;
    padding: 0;
    font-family:'Poppins', sans-serif;
    box-sizing: border-box;
}*//
.container{
    width: 100%;
    min-height:100vh;
    background: linear-gradient(135deg,#3d5567,#000000 );
    padding: 10px;
}
.todo-app{
    width:100%;
    max-width: 540px;
    background: #fff;
    margin: 100px auto 20px;
    padding: 40px 30px 70px;
    border-radius: 10px;
}
.todo-app h2{
    color: #446179;
    display: flex;
    align-items:center;
    margin-bottom:20px;
}
.row{
    display: flex;
    align-items: center;
    justify-content: space-between;
    background:#edeef0;
    border-radius: 30px;
    padding-left: 20px;
    margin-bottom: 25px;
}
input{
    flex: 1;
    border:none;
    outline:none;
    background: transparent;
    padding: 10px;
  
}
.row button{
    border:none;
    outline:none;
    background: #446179;
    padding: 16px 50px;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    border-radius: 40px;
}
ul li{
    list-style:none;
    font-size:17px;
    padding: 12px 8px 12px 50px;
    user-select: none;
    cursor: pointer;
    position:relative;
}
ul li:before{
    content: '';
    position:absolute;
    height: 28px;
    width: 28px;
    border-radius: 50%;
    background-image: url(https://files.catbox.moe/dr1xwy.png);
   background-size: cover;
   background-position: center;
   top:12px;
   left:8px;
}
ul li.checked{
    color:#555555;
    text-decoration: line-through;
}
ul li.checked:before{
     background-image: url(https://files.catbox.moe/pn7c55.png);
}
ul li span{
    position:absolute;
    right:0;
    top:5px;
    width: 40px;
    height:40px;
    font-size:22px;
    color:#555555;
    line-height:40px;
    text-align: center;
    border-radius:20%
}
ul li span:hover{
    background:#edeef0;
}