*{
    margin:0;
    padding:0;
    font-family:'poppins', sans-serif;
    box-sizing: border-box;

}
.container{
    width:100%;
    min-height:100vh;
    background:linear-gradient(135deg,#153677,#4e085f);
    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:#002765;
   display:flex;
   align-items:center;
   margin-bottom:20px;
}
.todo-app h2 img{
    width:25px;
    margin-left:10px;
    width:"30";
     height:"30";
}
.row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    background:#edeef0;
    border-radius:30px;
    padding-left:20px;
    margin-bottom:25px;
}

.row:hover{
    background-color: #efecec;
}



input{
    flex:1;
    border:none;
    outline:none;
    background:transparent;  
    padding:10px;
    font-weight:14px;
}

button{
    border:none;
    outline:none;
    padding:16px 50px;
    background:linear-gradient(135deg,#153677,#4e085f);;
    color:#fff;
    font-size:16px;
    cursor:pointer;
    border-radius:40px;
}

button:hover{
    background:linear-gradient(135deg,#4e085f,#153677);
}
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:20px;
    width:20px;
    border-radius:50%;
    background-image:url(images/unchecked.png);
    background-size:cover;
    background-position:center;
    top:12px;
    left:8px;

}
ul li.checked{
    color:#555;
    text-decoration:line-through;
}
ul li.checked::before{
   background-image:url(images/checked.png);  
}
ul li span{
    position:absolute;
    right:0;
    top:5px;
    width:40px;
    height:40px;
    font-size:22px;
    color:#555;
    line-height:40px;
    text-align:center;
    border-radius:30%;

}
ul li span:hover{
    background:#edeef0;
}