:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}body{font-family:Arial,sans-serif;background-color:#f2f2f2;margin:0;padding:0}.box{width:400px;margin:50px auto;background-color:#fff;padding:20px;box-shadow:0 0 10px #0000001a;border-radius:10px;text-align:center}input[type=text]{width:70%;padding:10px;font-size:16px;border:1px solid #ccc;border-radius:8px;margin-bottom:10px}#addbtn{padding:10px 15px;background-color:orange;color:#fff;font-size:16px;border:none;border-radius:8px;cursor:pointer;margin-left:10px}#addbtn:hover{background-color:#ff8c00}.container{margin-top:20px;text-align:left}ul{padding:0;margin:0}li.para{list-style:none;background-color:#f9f9f9;margin:10px 0;padding:12px;border-radius:8px;font-size:18px;display:flex;justify-content:space-between;align-items:center;cursor:pointer}.checked{text-decoration:line-through;color:gray}#delbtn{padding:5px 10px;background-color:red;color:#fff;border:none;border-radius:6px;cursor:pointer}#delbtn:hover{background-color:#8b0000}.box{position:relative;left:400px}.container{border:1px solid #000;padding:10px;background:#f1eaea;text-align:center}#red{background:red}#green{background:green}#yellow{background:#ff0}#blue{background:#00f}