body {
            
            background-color: white;
            margin: 0;
        }

      .container {
    background: rgb(238, 231, 245);
    width: 400px;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    margin: 80px auto;   /* THIS IS IMPORTANT */
}

        h2 {
            text-align: center;
        }

        .input-section {
            display: flex;
            margin-bottom: 15px;
        }

        input {
            flex: 1;
            padding: 8px;
            border: 1px solid #ccc;
            border-radius: 5px;
        }

        button {
            padding: 8px 12px;
            margin-left: 5px;
            border: none;
            background-color: #6366f1;
            color: white;
            border-radius: 5px;
            cursor: pointer;
        }

        button:hover {
            background-color: #4f46e5;
        }

        ul {
            list-style-type: none;
            padding: 0;
        }

        li {
            display: flex;
            justify-content: space-between;
            padding: 8px;
            border-bottom: 1px solid #eee;
        }

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

        .delete-btn {
            background-color: #ef4444;
        }

        .delete-btn:hover {
            background-color: #dc2626;
        }