*{
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    box-sizing: border-box;
}
.container{
    width: 100%;
    min-height: 100vh;
    background: linear-gradient(135deg, #263b69, #46a122);
    padding: 10px;
}
.box{
    width: 100%;
    max-width: 540px;
    background: #fff;
    margin: 100px auto 20px;
    padding: 40px 30px 70px;
    border-radius: 10px;
}
.footer{
    width: 100%;
    max-width: fit-content;
    background: #fff;
    margin: 100px auto 20px;
    padding: 20px 30px 20px;
    border-radius: 10px;
    display: flex;
    gap: 30px;
}
.made-by, .author{
    font-size: 15px;
}
.made-by{
    color: darkgray;
}
.author{
    color: green;
    font-weight: bold;
}
.box h2{
    color: #002765;
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}
.box 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;
    font-weight: 14px;
}
button{
    border: none;
    outline: none;
    padding: 16px 50px;
    background: #225232;
    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/8685579_ic_fluent_checkbox_unchecked_filled_icon.png);
    background-size: cover;
    background-position: center;
    top: 9px;
    left: 8px;
}
ul li.checked{
    color: #555 ;
    text-decoration: line-through;
}
ul li.checked::before{
    background-image: url(Images/8685578_ic_fluent_checkbox_checked_filled_icon.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;

}

#list-container {
    height: 300px;
    scrollbar-width: thin;
    overflow-y: scroll;
}

/* width */
#list-container::-webkit-scrollbar {
    width: 10px;
  }
  
  /* Track */
#list-container::-webkit-scrollbar-track {
    display: none; 
  }
   
  /* Handle */
#list-container::-webkit-scrollbar-thumb {
    background: rgb(23, 78, 23); 
    border-radius: 0.5rem;
  }
  
  /* Handle on hover */
#list-container::-webkit-scrollbar-thumb:hover {
    background: #268843; 
  }