body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    color: #000000;
    text-align: center;
    transition: background-color 0.3s, color 0.3s;
}


input[type="checkbox"] {
    display: none;
}


.toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 25px;
    background: #ddd;
    border-radius: 25px;
    cursor: pointer;
    transition: background 0.3s;
}

.toggle::before {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    top: 2.5px;
    left: 3px;
    transition: 0.3s;
}


.dark-mode {
    background-color: #121212;
    color: #ffffff;
}


input[type="checkbox"]:checked + .toggle {
    background: #333;
}

input[type="checkbox"]:checked + .toggle::before {
    transform: translateX(25px);
    background: yellow;
}