* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Times New Roman', Times, serif;
}

body {
    width: 100%;
    min-height: 100vh;
    height: 70%;
    background-image: url(image.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: right;
    background-attachment: fixed;
}
background-image{
    opacity: 1;
}
.todo {
    width: 100%;
    max-width: 540px;
    background: white;
    margin: 150px auto 20px;
    padding: 40px 30px 70px;
    border-radius: 50px;
    box-shadow: 0 0 30px rgb(17, 178, 206);
}

h2 {
    color: #002765;
    display: flex;
    font-size: 30px;
    margin-bottom: 50px;
    position: relative;
}

h2 img {
    width: 40px;
    position: absolute;
    right: 0;
}

.row {
    display: flex;
    align-items: center;
    justify-content: space-around;
    outline: 3px groove black;
    outline-offset: 5px;
    border: none;
    border-radius: 30px;
    margin-bottom: 20px;
    box-shadow: 0 0 3px #5d5d5d;
}

input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
}

input::placeholder {
    color: #002765;
    font-weight: 700;
}

button {
    border: none;
    outline: none;
    padding: 16px 30px;
    background: #002765;
    color: #fff;
    font-weight: 600;
    font-size: 18px;
    cursor: pointer;
    border-radius: 30px;
    letter-spacing: 0.5px;
    margin: 1px;
}

ul li {
    list-style: none;
    font-size: 18px;
    font-weight: 550;
    letter-spacing: 1px;
    padding: 12px 8px 12px 50px;
    user-select: none;
    cursor: pointer;
    position: relative;
    margin-block: 10px;
}

ul li::before {
    content: '';
    position: absolute;
    height: 30px;
    width: 30px;
    border-radius: 50%;
    background: url(nchecked.png);
    background-size: cover;
    position: center;
    top: 12px;
    left: 8px;
}

ul li.checked {
    background: #002765;
    color: white;
    border-radius: 50px;
}

ul li.checked::before {
    background: url(check.png);
    background-size: cover;
}

ul li span {
    position: absolute;
    top: 10px;
    right: 0px;
    margin-right: 5px;
    width: 30px;
    height: 30px;
    line-height: 30px;
    font-size: 22px;
    color: black;
    text-align: center;
    border-radius: 50%;
}

ul li span:hover {
    background: black;
    color: #fff;
}

ul li.checked span{
    color: #fff;
}