style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');
*{
    margin:0;
    padding:0;
    font-family: 'Poppins', sans-serif;
}
body{
    background:#f5f5f5;
    display:flex;
    justify-content: center;
    align-items:center;
    flex-direction:column;
    height:100vh;
    width:100vw;
    
}
.title{
    font: size 30px;
    font-weight:600;
    color:rgb(8, 6, 133);
    letter-spacing:1px;
    margin:30px ;  /* margin:30px 0; */
} 
@media(min-width:400px){
.todo-list{
    width: 450px;
    padding:20px;
    /* border:1px solid black; */
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    background-color:#fff;
}
}
.list-head{
    display:grid;
    grid-template-columns: 4fr 1fr;
    gap: 10px;
}
.entered-list{
    padding: 10px;
    border-radius: 5px;
    border:1px solid #ccc;
    font: size 16px;
    outline:none;
}
.add-list{
    border:none;
    border-radius: 5px;
    background-color:rgb(8, 6, 133);
    font-size: 16px;
    color:#fff;
    cursor:pointer;
    opacity:0.6;
    pointer-events:none;
}

.add-list.active{
    opacity: 1;
    pointer-events:all;
}

.add-list:active{
    opacity:0.6;
    
}


.tasks{
    width:100%;
    margin-top: 30px;
}
.item{
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}
.item p{
    font-size: 16px;
    font-weight: 500;
    color:#111;
    letter-spacing: 1px;
}
.item.completed p{
    text-decoration: line-through;
    color:#11111180;
} 
.item-btn{
    display: flex;
    align-items:center;
    gap:20px;
}
.item-btn i{
    color: rgb(8, 6, 133);
    font-size:18px;
    /* opacity: 1; */
    cursor: pointer;
    
}
i:active{
    opacity:0.6;
}