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

.container{
    width:100%;
    min-height: 100vh;
    /* border:1px solid red; */
    background: linear-gradient(135deg, #153677, #4e085f);
    padding:10px;
}

.todo-app{
    width:100%;
    border: 1px solid yellow;
    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:30px;
    margin-left:10px;
}

.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;
}

button {
    border: none;
    outline:none;
    padding: 16px 50px;
    background: #ff5945;
    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(./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: 50%;
}

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