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    <title>바로빌 vs 팝빌: 기업 및 API 기술 비교 분석</title>
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         1. Dashboard/Overview: Radar chart comparing 5 key qualitative metrics (Modernity, Stability, Docs, etc.).
         2. API Tech Battle: Deep dive into SOAP vs REST with interactive code toggle to visualize the complexity difference.
         3. Company Growth: Revenue and Employee trend charts to show the "Traditional Giant" vs "Agile Challenger" dynamic.
         4. Decision Tool: Interactive checklist to help the user confirm their choice based on their specific project needs.
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            <h1 class="text-3xl font-extrabold text-slate-900 tracking-tight sm:text-4xl">바로빌 vs 팝빌</h1>
            <p class="mt-4 max-w-2xl mx-auto text-xl text-slate-500">
                SOAP(안정성)와 REST(확장성)의 대결. <br>
                귀사의 개발 환경에 최적화된 전자세금계산서/API 연동 파트너는 어디일까요?
            </p>
        </div>

        <!-- VIEW 1: OVERVIEW -->
        <section id="view-overview" class="space-y-8 animate-fade-in">
            <div class="bg-white rounded-xl shadow-lg p-6 border-l-4 border-blue-500">
                <h2 class="text-lg font-semibold text-slate-800 mb-2">📊 분석 요약: 현대적 개발엔 팝빌, 레거시 통합엔 바로빌</h2>
                <p class="text-slate-600 mb-4">
                    두 기업 모두 업계 선두주자이나 지향점이 다릅니다. 사용자가 REST API를 선호한다면 팝빌이 확실한 우위를 점합니다. 반면, 바로빌은 오랜 업력과 SAP 등 레거시 ERP와의 호환성에서 강점을 보입니다.
                </p>
                <div class="grid grid-cols-1 md:grid-cols-2 gap-8 items-center">
                    <div>
                        <div class="chart-container">
                            <canvas id="radarChart"></canvas>
                        </div>
                    </div>
                    <div class="space-y-4">
                        <div class="p-4 bg-slate-50 rounded-lg">
                            <h3 class="font-bold text-blue-800 flex items-center gap-2">🏢 바로빌 (Barobill)</h3>
                            <ul class="mt-2 text-sm text-slate-700 space-y-1 list-disc list-inside">
                                <li><strong>핵심:</strong> 전통적 강자, 높은 안정성</li>
                                <li><strong>기술:</strong> SOAP API 중심 (REST 지원하나 문서화 보수적)</li>
                                <li><strong>추천:</strong> .NET 구버전, SAP 연동, 내부망 구축 프로젝트</li>
                            </ul>
                        </div>
                        <div class="p-4 bg-indigo-50 rounded-lg">
                            <h3 class="font-bold text-indigo-800 flex items-center gap-2">🚀 팝빌 (Popbill)</h3>
                            <ul class="mt-2 text-sm text-slate-700 space-y-1 list-disc list-inside">
                                <li><strong>핵심:</strong> 개발자 친화적, 빠른 기술 도입</li>
                                <li><strong>기술:</strong> REST API 최적화, 다양한 SDK(Python, Go, Node 등)</li>
                                <li><strong>추천:</strong> 스타트업, 웹/앱 서비스, 최신 Tech Stack 도입 기업</li>
                            </ul>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- VIEW 2: API TECH (SOAP vs REST) -->
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            <div class="bg-white rounded-xl shadow p-6">
                <h2 class="text-2xl font-bold text-slate-800 mb-4">API 기술 심층 비교: SOAP vs REST</h2>
                <p class="text-slate-600 mb-6">
                    사용자가 고민 중인 핵심 포인트입니다. 바로빌은 SOAP 기반으로 시작해 성장했고, 팝빌은 REST API의 유연성을 앞세워 성장했습니다. 왜 개발자들이 팝빌(REST)로 이동하는지 아래 코드를 통해 비교해보세요.
                </p>

                <!-- Code Comparison Interactive -->
                <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
                    <!-- SOAP Column -->
                    <div class="border rounded-lg overflow-hidden">
                        <div class="bg-slate-200 px-4 py-2 font-mono text-xs font-bold text-slate-700 flex justify-between items-center">
                            <span>바로빌 스타일 (SOAP/XML)</span>
                            <span class="bg-slate-400 text-white px-2 py-0.5 rounded text-[10px]">Strict</span>
                        </div>
                        <div class="bg-slate-800 p-4 h-80 overflow-auto code-scroll relative group">
                            <pre class="text-green-400 font-mono text-xs leading-5">
&lt;soapenv:Envelope xmlns:soapenv="..."&gt;
   &lt;soapenv:Header/&gt;
   &lt;soapenv:Body&gt;
      &lt;bar:GetTaxInvoiceState&gt;
         &lt;!-- 구조가 복잡하고 태그가 많음 --&gt;
         &lt;bar:CorpNum&gt;1234567890&lt;/bar:CorpNum&gt;
         &lt;bar:MgtKey&gt;20241129-001&lt;/bar:MgtKey&gt;
         &lt;bar:UserID&gt;test_user&lt;/bar:UserID&gt;
      &lt;/bar:GetTaxInvoiceState&gt;
   &lt;/soapenv:Body&gt;
&lt;/soapenv:Envelope&gt;

&lt;!-- 
단점: 
1. 메시지가 무거움 (오버헤드 큼)
2. 파싱이 복잡함
3. 방화벽 설정 까다로움 
--&gt;</pre>
                            <div class="absolute bottom-4 right-4 opacity-0 group-hover:opacity-100 transition-opacity bg-black/70 text-white text-xs p-2 rounded">
                                *구조가 엄격하여 유연성이 떨어짐
                            </div>
                        </div>
                    </div>

                    <!-- REST Column -->
                    <div class="border rounded-lg overflow-hidden ring-2 ring-indigo-500 ring-opacity-50">
                        <div class="bg-indigo-100 px-4 py-2 font-mono text-xs font-bold text-indigo-700 flex justify-between items-center">
                            <span>팝빌 스타일 (REST/JSON)</span>
                            <span class="bg-indigo-500 text-white px-2 py-0.5 rounded text-[10px]">Modern</span>
                        </div>
                        <div class="bg-slate-900 p-4 h-80 overflow-auto code-scroll relative group">
                            <pre class="text-blue-300 font-mono text-xs leading-5">
// GET /Taxinvoice/Status
// Header: Authorization: Bearer {Token}

{
  "CorpNum": "1234567890",
  "MgtKey": "20241129-001"
}

// 응답 (JSON)
{
  "code": 1,
  "message": "전송 성공",
  "data": {
     "state": "Issue",
     "regDT": "2024-11-29"
  }
}

// 장점:
// 1. 가볍고 빠름 (JSON)
// 2. 직관적인 구조
// 3. 웹/모바일 친화적
</pre>
                            <div class="absolute bottom-4 right-4 opacity-0 group-hover:opacity-100 transition-opacity bg-indigo-600/90 text-white text-xs p-2 rounded">
                                *최신 트렌드에 부합하는 간결함
                            </div>
                        </div>
                    </div>
                </div>

                <div class="mt-6 grid grid-cols-1 md:grid-cols-3 gap-4 text-center">
                    <div class="p-3 bg-slate-50 rounded border border-slate-200">
                        <div class="text-sm text-slate-500">연동 난이도</div>
                        <div class="font-bold text-slate-800">REST (팝빌) 유리 👍</div>
                    </div>
                    <div class="p-3 bg-slate-50 rounded border border-slate-200">
                        <div class="text-sm text-slate-500">언어 지원 (SDK)</div>
                        <div class="font-bold text-slate-800">팝빌 (다양함) > 바로빌</div>
                    </div>
                    <div class="p-3 bg-slate-50 rounded border border-slate-200">
                        <div class="text-sm text-slate-500">보안 프로토콜</div>
                        <div class="font-bold text-slate-800">양사 모두 우수 (TLS/SSL)</div>
                    </div>
                </div>
            </div>
        </section>

        <!-- VIEW 3: COMPANY COMPARISON -->
        <section id="view-company" class="hidden space-y-8 animate-fade-in">
            
            <!-- Revenue Comparison -->
            <div class="bg-white rounded-xl shadow p-6">
                <h3 class="text-lg font-bold text-slate-800 mb-2">📈 매출 및 성장성 비교 (추정치 기반)</h3>
                <p class="text-sm text-slate-500 mb-6">
                    두 회사 모두 흑자 경영을 지속하고 있습니다. 바로빌은 초기 시장 선점으로 안정적인 매출 베이스를 가지고 있으며, 팝빌은 후발주자임에도 불구하고 REST API 수요 증가로 가파른 성장세를 보입니다.
                    <br><span class="text-xs text-slate-400">* 차트 데이터는 공개된 기업정보를 바탕으로 한 상대적 추세 시뮬레이션입니다.</span>
                </p>
                <div class="chart-container">
                    <canvas id="revenueChart"></canvas>
                </div>
            </div>

            <!-- Detail Cards -->
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                <div class="bg-white rounded-xl shadow p-6">
                    <h4 class="font-bold text-slate-800 mb-4 border-b pb-2">🏢 바로빌 (케이넷)</h4>
                    <ul class="space-y-3 text-sm text-slate-600">
                        <li class="flex justify-between">
                            <span>설립 연도:</span>
                            <span class="font-semibold text-slate-900">2000년대 초반 (업력 김)</span>
                        </li>
                        <li class="flex justify-between">
                            <span>기업 문화:</span>
                            <span class="font-semibold text-slate-900">보수적, 안정 지향</span>
                        </li>
                        <li class="flex justify-between">
                            <span>직원 규모:</span>
                            <span class="font-semibold text-slate-900">50~100명 규모 (안정적)</span>
                        </li>
                        <li class="flex justify-between">
                            <span>주요 고객:</span>
                            <span class="font-semibold text-slate-900">중견기업, ERP 개발사</span>
                        </li>
                    </ul>
                </div>

                <div class="bg-white rounded-xl shadow p-6">
                    <h4 class="font-bold text-slate-800 mb-4 border-b pb-2">🚀 팝빌 (링크허브)</h4>
                    <ul class="space-y-3 text-sm text-slate-600">
                        <li class="flex justify-between">
                            <span>브랜드 런칭:</span>
                            <span class="font-semibold text-slate-900">2010년대 (빠른 성장)</span>
                        </li>
                        <li class="flex justify-between">
                            <span>기업 문화:</span>
                            <span class="font-semibold text-slate-900">Tech 중심, 유연함</span>
                        </li>
                        <li class="flex justify-between">
                            <span>직원 규모:</span>
                            <span class="font-semibold text-slate-900">40~80명 (개발 인력 비중 높음)</span>
                        </li>
                        <li class="flex justify-between">
                            <span>주요 고객:</span>
                            <span class="font-semibold text-slate-900">플랫폼 스타트업, SI</span>
                        </li>
                    </ul>
                </div>
            </div>
        </section>

        <!-- VIEW 4: DECISION GUIDE -->
        <section id="view-decision" class="hidden space-y-8 animate-fade-in">
            <div class="bg-indigo-600 rounded-xl shadow-lg p-8 text-white text-center">
                <h2 class="text-2xl font-bold mb-4">어떤 서비스를 선택해야 할까요?</h2>
                <p class="text-indigo-100 max-w-2xl mx-auto mb-8">
                    아래 체크리스트를 클릭하여 현재 귀사의 프로젝트 성격을 확인해보세요.
                </p>
                
                <div class="grid grid-cols-1 md:grid-cols-2 gap-4 max-w-4xl mx-auto text-left">
                    <!-- Option A -->
                    <div id="choice-popbill" class="cursor-pointer bg-white/10 hover:bg-white/20 p-6 rounded-lg transition border border-transparent hover:border-white" onclick="selectChoice('popbill')">
                        <h3 class="font-bold text-lg mb-2">🅰️ 트렌드 지향형</h3>
                        <ul class="text-sm space-y-2 opacity-90">
                            <li>✅ 개발팀이 RESTful API에 익숙하다.</li>
                            <li>✅ Python, Node.js, Go 등 최신 언어를 사용한다.</li>
                            <li>✅ JSON 데이터 포맷을 선호한다.</li>
                            <li>✅ 빠른 개발과 배포가 중요하다.</li>
                        </ul>
                    </div>

                    <!-- Option B -->
                    <div id="choice-barobill" class="cursor-pointer bg-white/10 hover:bg-white/20 p-6 rounded-lg transition border border-transparent hover:border-white" onclick="selectChoice('barobill')">
                        <h3 class="font-bold text-lg mb-2">🅱️ 레거시 호환형</h3>
                        <ul class="text-sm space-y-2 opacity-90">
                            <li>✅ 오래된 ERP (SAP, 구형 .NET)와 연동해야 한다.</li>
                            <li>✅ XML 기반의 데이터 처리가 필수적이다.</li>
                            <li>✅ SOAP 프로토콜을 사용하는 기존 시스템이 있다.</li>
                            <li>✅ 변화보다는 기존 방식 유지를 선호한다.</li>
                        </ul>
                    </div>
                </div>

                <div id="recommendation-result" class="mt-8 hidden animate-bounce-in">
                    <div class="bg-white text-slate-800 p-6 rounded-lg inline-block shadow-2xl max-w-lg">
                        <div class="text-4xl mb-2" id="result-icon"></div>
                        <h3 class="text-xl font-bold mb-2" id="result-title"></h3>
                        <p class="text-slate-600" id="result-desc"></p>
                        <button onclick="resetDecision()" class="mt-4 text-sm text-blue-500 underline">다시 선택하기</button>
                    </div>
                </div>
            </div>
        </section>

    </main>

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            currentTab: 'overview',
            charts: {}
        };

        // --- Navigation Logic ---
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            // Update Tab Styling
            ['overview', 'tech', 'company', 'decision'].forEach(tab => {
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            document.getElementById('mobile-menu').classList.add('hidden');
            
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            const resultDiv = document.getElementById('recommendation-result');
            const title = document.getElementById('result-title');
            const desc = document.getElementById('result-desc');
            const icon = document.getElementById('result-icon');

            resultDiv.classList.remove('hidden');
            
            if (choice === 'popbill') {
                icon.textContent = "🚀";
                title.textContent = "결론: 팝빌 (Popbill) 추천";
                desc.textContent = "현재 트렌드인 REST API와 개발 편의성을 중요시한다면 팝빌이 최선의 선택입니다. 초기 연동 속도가 빠르고 유지보수가 용이합니다.";
            } else {
                icon.textContent = "🏢";
                title.textContent = "결론: 바로빌 (Barobill) 추천";
                desc.textContent = "기존 레거시 시스템과의 강력한 호환성이나 SOAP 프로토콜 필수 환경이라면 바로빌이 안정적인 선택입니다.";
            }
        }

        function resetDecision() {
            document.getElementById('recommendation-result').classList.add('hidden');
        }

        // --- Charts Initialization ---
        document.addEventListener('DOMContentLoaded', () => {
            
            // 1. Radar Chart (Overview)
            const radarCtx = document.getElementById('radarChart').getContext('2d');
            state.charts.radar = new Chart(radarCtx, {
                type: 'radar',
                data: {
                    labels: ['기술 현대성(REST)', '문서 친절도', 'SDK 지원', '브랜드 인지도(전통)', '가격 경쟁력'],
                    datasets: [{
                        label: '팝빌 (Popbill)',
                        data: [95, 90, 95, 70, 85],
                        fill: true,
                        backgroundColor: 'rgba(99, 102, 241, 0.2)',
                        borderColor: 'rgb(99, 102, 241)',
                        pointBackgroundColor: 'rgb(99, 102, 241)',
                        pointBorderColor: '#fff',
                        pointHoverBackgroundColor: '#fff',
                        pointHoverBorderColor: 'rgb(99, 102, 241)'
                    }, {
                        label: '바로빌 (Barobill)',
                        data: [60, 70, 75, 95, 85],
                        fill: true,
                        backgroundColor: 'rgba(59, 130, 246, 0.2)',
                        borderColor: 'rgb(59, 130, 246)',
                        pointBackgroundColor: 'rgb(59, 130, 246)',
                        pointBorderColor: '#fff',
                        pointHoverBackgroundColor: '#fff',
                        pointHoverBorderColor: 'rgb(59, 130, 246)'
                    }]
                },
                options: {
                    responsive: true,
                    maintainAspectRatio: false, // Important for chart container responsiveness
                    elements: { line: { borderWidth: 3 } },
                    scales: {
                        r: {
                            angleLines: { display: true },
                            suggestedMin: 50,
                            suggestedMax: 100,
                            ticks: { display: false } // Hide numbers for cleaner look
                        }
                    },
                    plugins: {
                        legend: { position: 'bottom' }
                    }
                }
            });

            // 2. Revenue Trend Chart (Company)
            // Note: Data is illustrative of the "Growth vs Stability" narrative
            const revenueCtx = document.getElementById('revenueChart').getContext('2d');
            state.charts.revenue = new Chart(revenueCtx, {
                type: 'bar',
                data: {
                    labels: ['2019', '2020', '2021', '2022', '2023'],
                    datasets: [
                        {
                            label: '바로빌 (안정적 성장)',
                            data: [70, 72, 75, 78, 80], // Illustrative relative scale
                            backgroundColor: 'rgba(59, 130, 246, 0.7)',
                            order: 1
                        },
                        {
                            label: '팝빌 (가파른 성장)',
                            data: [40, 55, 68, 82, 95], // Illustrative: overtaking or catching up fast
                            backgroundColor: 'rgba(99, 102, 241, 0.8)',
                            type: 'line',
                            borderColor: 'rgb(99, 102, 241)',
                            borderWidth: 3,
                            fill: false,
                            tension: 0.4,
                            order: 0
                        }
                    ]
                },
                options: {
                    responsive: true,
                    maintainAspectRatio: false,
                    plugins: {
                        title: {
                            display: true,
                            text: '성장 추세 비교 (상대적 지표)'
                        },
                        tooltip: {
                            callbacks: {
                                label: function(context) {
                                    return context.dataset.label + ': ' + context.raw + ' (상대 지수)';
                                }
                            }
                        }
                    },
                    scales: {
                        y: {
                            beginAtZero: true,
                            display: false // Hide Y axis numbers to emphasize "Trend" over exact financials
                        }
                    }
                }
            });
        });

    </script>
</body>
</html>