           border: 1px solid var(--border-color);
            border-radius: 4px;
            box-sizing: border-box;
        }

        button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        button:hover {
            background-color: #3a5a80;
        }

        .result {
            margin-to