form {
            margin-bottom: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        label {
            margin-bottom: 5px;
        }
        input[type="text"], select {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            margin-bottom: 10px;
        }
        button {
            padding: 10px 15px;
            border: none;
            background-color: #3a70df;
            color: white;
            border-radius: 4px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        button:hover {
            background-color: #3a70df;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 10px;
            background-color: #fff;
        }
        table, th, td {
            border: 1px solid #ddd;
            padding: 8px;
        }
        th {
            background-color: #f2f2f2;
        }
        .error {
            color: red;
        }
        @media (max-width: 600px) {
            input[type="text"], button, select {
                width: 100%;
            }
        }