*{
    margin: 0;
    padding: 0;
    font-family:Verdana, Geneva, Tahoma, sans-serif;
    box-sizing: border-box;
}
html,body{
     background-color: #131313;
}
#main{
    height: 100%;
    width: 100%;
    background-color: #131313;
    display: flex;
    flex-direction: column;
    align-items: center;
}
header{
    width: 100%;
    background-color: rgb(236, 234, 229);  
    text-align: center;
    padding: 20px 0px;
}
header h1{
    /* background-color: aqua; */
    padding: 10px 20px;
}
#box{
    background-color: rgb(223, 84, 19);
    height: 15%;
    /* width: 600; */
    margin: 15px 0px;
    padding: 20px 0px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    border-radius: 10px;

    /* gap: 100px; */
}
#box input{
    height: 3rem;
    width: 500px;
    /* background-color: #64cfcf; */
    text-align: center;
    border: none;
    outline: none;
    font-size: 1.2rem;
    border-radius: 10px;
    margin: 0px 30px;
    padding: 0px 10px;
    /* font-family:unset; */
}
#box button{
    height: 3rem;
    width: 10rem;
    font-size: 1.2rem;
    border-radius: 10px;
    border: none;
     margin: 0px 30px;
}
#box button:hover{
    background-color: #131313;
    color: aliceblue;
    transition: 0.2s  ;
}
ul{
    /* background-color: aquamarine; */
    height: 500px;
    width: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

ul li{
    height: 3rem;
    width: 600px;
    list-style: none;
    background-color: #ffffff;
    /* text-align: center; */
    border: none;
    outline: none;
    font-size: 1.2rem;
    border-radius: 10px;
    margin: 10px 0px;
    padding: 15px 40px;
    position:relative;
    user-select: none;
    display: flex;
    align-items: center;
}
ul li::before{
    position: absolute;
    content: " ";
    height: 20px;
    width: 20px;
    border: 2px solid rgba(0, 0, 0, 0.664);
    /* background-color: #131313; */
    border-radius: 50px;
    display: flex;
    align-items: center;
    top: 15px;
    left: 10px;  
}

ul li span{
    position: absolute;
    right: 05px;
    top: 03px;
    font-weight: 500;
    font-size: 25px;
    color: #0a0a0a;
    text-align: center;
    line-height: 40px;
    height: 40px;
    width: 40px;
    text-align: center;

}
ul li span:hover{
    background-color: #000000;
    color: #ffffff;
    border-radius: 50px;
    font-weight: 550;
}



.checked{
    color: rgba(17, 17, 17, 0.671);
    text-decoration: line-through;
    
}
.checked::before{
    background: url(i.png);  
    background-size: cover;
    background-position: center;
    border: none;
    height: 22px;
    width: 22px;
}

@media (max-width : 600px) {
    header{
        padding: 10px 0px;
    }


    #box input{
        min-height: 3rem;
        width: 88vw;
        font-size: 1.1rem;
        margin: 10px 30px;

    }

    #box{
        background-color: rgb(223, 84, 19);
        height: auto;
        width: 90vw;
        margin-left: 0px;
        display: flex;
        padding: 0px;
        /* align-items: center;
        justify-content: center;
        flex-wrap: wrap; */
        /* border-radius: 10px; */
    
        /* gap: 100px; */
    }




    ul li{
            width: 85vw;
            height: auto;
    }

    #box button{
        height: 2.5rem;
        width: 8rem;
        font-size: 1rem;
        border-radius: 10px;
        border: none;
         margin: 10px 30px;
    }
}