body{
font-family: Arial;
text-align:center;
margin-top:50px;
}

input{
padding:10px;
}

button{
padding:10px;
}

li{
margin:10px;
}

.completed {
    text-decoration: line-through;
    color: gray;
}

span {
    cursor: pointer;
}

/* 🌙 Dark Mode Styles */
body.dark-mode {
    background-color: #121212;
    color: white;
}

body.dark-mode input,
body.dark-mode button {
    background-color: #333;
    color: white;
    border: 1px solid #555;
}

body.dark-mode li {
    background-color: #1e1e1e;
}

.overdue {
    color: red;
    font-weight: bold;
}

.active-filter {
    background-color: #333;
    color: white;
    font-weight: bold;
}