<!DOCTYPE html>
<html>

<head>
    <title>Dark Mode Toggle</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="app.css">
    <style>
        body {
            background-color: #f6f6f6;
            transition: background-color .3s;
        }

        body[light-mode=dark] {
            background-color: #141516;
            color: #ced4e2;
        }

        body[light-mode="dark"] .light-mode-button span:nth-child(1) {
            background-co