body {
            font-family: Arial, sans-serif;
            background-color: #1e1e2e;
            color: white;
            text-align: center;
            padding: 20px;
        }

        ul {
            list-style-type: none;
            padding: 0;
            max-width: 400px;
            margin: auto;
        }

        li {
            background: #3a3d5a;
            padding: 15px;
            margin: 10px 0;
            border-radius: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        button {
            border: none;
            padding: 10px 15px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
        }
        
        input[type="text"] {
            border: none;
            padding: 8px 15px;
            border-radius: 5px;
            font-size: 16px;
        }

        button:hover {
            opacity: 0.8;
        }