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


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

.to_do-app{
    width: 100%;
    max-width: 540px;
    background: #fff;
    margin: 100px auto 20px;
    padding: 40px 30px 70px;
    border-radius: 10px;
}

.to_do-app h2{
    color: #002765;
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    font-size: 22px;
}

.to_do-app h2 img{
    width: 30px;
    margin: 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;
    height: 40px;
    border-radius:20px ;
    border:none;
    outline:none;
    background: transparent;
}

button{
    border: none;
    outline: none;
    height: 40px;
    background:#eabd23;
    width: 90px;
    font-size: 16px;
    cursor: pointer;
    color: #4e085f;
    border-radius: 20px;
}

ul li{
    list-style: none;
    font-size: 16px;
    padding: 15px 80px 12px 40px;
    user-select: none;
    cursor: pointer;
    position: relative;
}

ul li::before{
    content: '';
    position: absolute;
    height: 22px;
    width: 22px;
    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;
}
ul li span:hover{
    background:#edeef0;
    border-radius: 60%;
}