/*
 * AWS SAP学習リソース - security-lake-guide 専用CSS
 * ページ固有のレイアウト・セクション・コンポーネントスタイル
 *
 * 自動生成日: 2026-01-11 18:19:02
 */

* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            color: #e2e8f0;
            line-height: 1.8;
            min-height: 100vh;
        
            padding-top: 80px; /* 固定ヘッダー分のスペース確保 */
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 20px;
        }

        /* ヘッダー */
        .header {
            text-align: center;
            padding: 60px 20px;
            background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 50%, #1e3a5f 100%);
            border-radius: 24px;
            margin-bottom: 50px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
        }

        .header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, transparent 50%);
            animation: pulse 8s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); opacity: 0.5; }
            50% { transform: scale(1.2); opacity: 0.8; }
        }

        .header-content {
            position: relative;
            z-index: 1;
        }

        .service-icon {
            font-size: 80px;
            margin-bottom: 20px;
            display: block;
        }

        .header h1 {
            font-size: 2.8em;
            margin-bottom: 15px;
            background: linear-gradient(135deg, #38bdf8, #818cf8, #a78bfa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .subtitle {
            font-size: 1.4em;
            color: #94a3b8;
            margin-bottom: 25px;
        }

        .badge {
            display: inline-block;
            background: linear-gradient(135deg, #0ea5e9, #6366f1);
            padding: 8px 24px;
            border-radius: 30px;
            font-size: 0.95em;
            font-weight: 600;
            color: white;
        }

        /* セクション共通 */
        .section {
            background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
            border-radius: 20px;
            padding: 40px;
            margin-bottom: 40px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(148, 163, 184, 0.1);
        }

        .section-title {
            font-size: 1.8em;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            gap: 15px;
            color: #f1f5f9;
        }

        .section-title .icon {
            font-size: 1.3em;
        }

        /* たとえ話セクション */
        .analogy-section {
            background: linear-gradient(135deg, #1e3a5f 0%, #0f172a 100%);
            border: 2px solid #0ea5e9;
        }

        .analogy-box {
            background: linear-gradient(135deg, rgba(14, 165, 233, 0.15), rgba(99, 102, 241, 0.15));
            border-radius: 16px;
            padding: 35px;
            margin-bottom: 30px;
            border-left: 5px solid #0ea5e9;
        }

        .analogy-title {
            font-size: 1.5em;
            color: #38bdf8;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .analogy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 25px;
        }

        .analogy-card {
            background: rgba(15, 23, 42, 0.6);
            padding: 25px;
            border-radius: 12px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid rgba(56, 189, 248, 0.2);
        }

        .analogy-card:hover {
            transform: translateY(-5px);
            border-color: #0ea5e9;
            box-shadow: 0 10px 30px rgba(14, 165, 233, 0.2);
        }

        .analogy-card .emoji {
            font-size: 3em;
            margin-bottom: 15px;
            display: block;
        }

        .analogy-card h4 {
            color: #38bdf8;
            margin-bottom: 10px;
            font-size: 1.1em;
        }

        .analogy-card p {
            color: #94a3b8;
            font-size: 0.95em;
        }

        /* 図解セクション */
        .diagram-container {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            border-radius: 20px;
            padding: 40px;
            margin: 30px 0;
            position: relative;
        }

        .diagram-title {
            text-align: center;
            font-size: 1.4em;
            color: #38bdf8;
            margin-bottom: 40px;
        }

        /* データフロー図 */
        .flow-diagram {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }

        .flow-row {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            width: 100%;
        }

        .source-box {
            background: linear-gradient(135deg, #7c3aed, #a78bfa);
            padding: 15px 25px;
            border-radius: 12px;
            text-align: center;
            min-width: 140px;
            box-shadow: 0 5px 20px rgba(124, 58, 237, 0.3);
        }

        .source-box .icon {
            font-size: 2em;
            margin-bottom: 8px;
            display: block;
        }

        .source-box span {
            font-size: 0.9em;
            font-weight: 600;
        }

        .arrow-down {
            display: flex;
            flex-direction: column;
            align-items: center;
            color: #38bdf8;
            font-size: 2em;
            padding: 10px 0;
        }

        .arrow-label {
            font-size: 0.5em;
            background: rgba(56, 189, 248, 0.2);
            padding: 5px 15px;
            border-radius: 20px;
            margin-top: 5px;
        }

        .central-lake {
            background: linear-gradient(135deg, #0ea5e9, #0284c7);
            padding: 40px 60px;
            border-radius: 20px;
            text-align: center;
            position: relative;
            box-shadow: 0 10px 40px rgba(14, 165, 233, 0.4);
            animation: glow 3s ease-in-out infinite;
        }

        @keyframes glow {
            0%, 100% { box-shadow: 0 10px 40px rgba(14, 165, 233, 0.4); }
            50% { box-shadow: 0 10px 60px rgba(14, 165, 233, 0.6); }
        }

        .central-lake .lake-icon {
            font-size: 3.5em;
            margin-bottom: 10px;
            display: block;
        }

        .central-lake h3 {
            font-size: 1.4em;
            margin-bottom: 10px;
        }

        .central-lake p {
            font-size: 0.9em;
            opacity: 0.9;
        }

        .output-row {
            display: flex;
            justify-content: center;
            gap: 25px;
            flex-wrap: wrap;
        }

        .output-box {
            background: linear-gradient(135deg, #059669, #10b981);
            padding: 20px 30px;
            border-radius: 12px;
            text-align: center;
            min-width: 150px;
            box-shadow: 0 5px 20px rgba(5, 150, 105, 0.3);
        }

        .output-box .icon {
            font-size: 2em;
            margin-bottom: 8px;
            display: block;
        }

        /* OCSF説明 */
        .ocsf-section {
            background: linear-gradient(135deg, #312e81, #4c1d95);
            border-radius: 16px;
            padding: 35px;
            margin: 30px 0;
        }

        .ocsf-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 25px;
        }

        .ocsf-header h3 {
            color: #c4b5fd;
            font-size: 1.4em;
        }

        .ocsf-explanation {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .ocsf-card {
            background: rgba(15, 23, 42, 0.5);
            padding: 25px;
            border-radius: 12px;
            border: 1px solid rgba(196, 181, 253, 0.2);
        }

        .ocsf-card h4 {
            color: #a78bfa;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* データソース一覧 */
        .sources-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }

        .source-card {
            background: linear-gradient(135deg, rgba(30, 58, 95, 0.8), rgba(15, 23, 42, 0.8));
            padding: 25px;
            border-radius: 14px;
            text-align: center;
            border: 1px solid rgba(56, 189, 248, 0.2);
            transition: all 0.3s ease;
        }

        .source-card:hover {
            transform: translateY(-3px);
            border-color: #0ea5e9;
        }

        .source-card .source-icon {
            font-size: 2.5em;
            margin-bottom: 12px;
            display: block;
        }

        .source-card h4 {
            color: #38bdf8;
            font-size: 1em;
            margin-bottom: 8px;
        }

        .source-card p {
            color: #94a3b8;
            font-size: 0.85em;
        }

        /* ユースケース */
        .usecase-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .usecase-card {
            background: linear-gradient(135deg, #1e3a5f, #0f172a);
            border-radius: 16px;
            padding: 30px;
            border-left: 4px solid;
            transition: all 0.3s ease;
        }

        .usecase-card:nth-child(1) { border-color: #f59e0b; }
        .usecase-card:nth-child(2) { border-color: #10b981; }
        .usecase-card:nth-child(3) { border-color: #ec4899; }
        .usecase-card:nth-child(4) { border-color: #8b5cf6; }

        .usecase-card:hover {
            transform: translateX(5px);
        }

        .usecase-card h4 {
            font-size: 1.2em;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .usecase-card:nth-child(1) h4 { color: #fbbf24; }
        .usecase-card:nth-child(2) h4 { color: #34d399; }
        .usecase-card:nth-child(3) h4 { color: #f472b6; }
        .usecase-card:nth-child(4) h4 { color: #a78bfa; }

        .usecase-card p {
            color: #94a3b8;
            font-size: 0.95em;
        }

        /* アーキテクチャ詳細 */
        .architecture-flow {
            background: #0f172a;
            border-radius: 16px;
            padding: 30px;
            margin: 25px 0;
        }

        .arch-step {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px;
            margin-bottom: 15px;
            background: rgba(30, 41, 59, 0.5);
            border-radius: 12px;
            position: relative;
        }

        .arch-step::before {
            content: '';
            position: absolute;
            left: 35px;
            top: 70px;
            height: calc(100% + 15px);
            width: 3px;
            background: linear-gradient(to bottom, #0ea5e9, transparent);
        }

        .arch-step:last-child::before {
            display: none;
        }

        .step-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #0ea5e9, #6366f1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3em;
            font-weight: bold;
            flex-shrink: 0;
        }

        .step-content h4 {
            color: #38bdf8;
            margin-bottom: 8px;
            font-size: 1.1em;
        }

        .step-content p {
            color: #94a3b8;
        }

        /* メリットセクション */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .benefit-card {
            background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(99, 102, 241, 0.1));
            padding: 30px;
            border-radius: 16px;
            border: 1px solid rgba(56, 189, 248, 0.2);
            transition: all 0.3s ease;
        }

        .benefit-card:hover {
            border-color: #0ea5e9;
            transform: translateY(-5px);
        }

        .benefit-card .benefit-icon {
            font-size: 2.5em;
            margin-bottom: 15px;
            display: block;
        }

        .benefit-card h4 {
            color: #38bdf8;
            font-size: 1.15em;
            margin-bottom: 12px;
        }

        /* 比較表 */
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            background: #0f172a;
            border-radius: 12px;
            overflow: hidden;
        }

        .comparison-table th {
            background: linear-gradient(135deg, #0ea5e9, #6366f1);
            color: white;
            padding: 18px;
            text-align: left;
            font-weight: 600;
        }

        .comparison-table td {
            padding: 16px 18px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.1);
            color: #cbd5e1;
        }

        .comparison-table tr:hover td {
            background: rgba(56, 189, 248, 0.05);
        }

        .comparison-table td:first-child {
            color: #38bdf8;
            font-weight: 600;
        }

        /* サブスクライバー説明 */
        .subscriber-section {
            background: linear-gradient(135deg, #064e3b, #065f46);
            border-radius: 16px;
            padding: 35px;
            margin: 25px 0;
        }

        .subscriber-types {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 25px;
        }

        .subscriber-card {
            background: rgba(15, 23, 42, 0.5);
            padding: 25px;
            border-radius: 12px;
            border: 1px solid rgba(52, 211, 153, 0.3);
        }

        .subscriber-card h4 {
            color: #34d399;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* 注意点 */
        .caution-box {
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
            border: 1px solid #f59e0b;
            border-radius: 12px;
            padding: 25px;
            margin: 25px 0;
        }

        .caution-box h4 {
            color: #fbbf24;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .caution-list {
            list-style: none;
        }

        .caution-list li {
            padding: 10px 0;
            padding-left: 30px;
            position: relative;
            color: #fcd34d;
        }

        .caution-list li::before {
            content: '⚠️';
            position: absolute;
            left: 0;
        }

        /* 料金セクション */
        .pricing-info {
            background: linear-gradient(135deg, #1e3a5f, #0f172a);
            border-radius: 16px;
            padding: 30px;
            margin: 25px 0;
            border: 1px solid rgba(56, 189, 248, 0.3);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .pricing-item {
            background: rgba(15, 23, 42, 0.5);
            padding: 20px;
            border-radius: 10px;
            text-align: center;
        }

        .pricing-item .price-icon {
            font-size: 2em;
            margin-bottom: 10px;
            display: block;
        }

        .pricing-item h4 {
            color: #38bdf8;
            margin-bottom: 8px;
        }

        /* まとめ */
        .summary-section {
            background: linear-gradient(135deg, #0ea5e9, #6366f1);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
        }

        .summary-section h2 {
            font-size: 1.8em;
            margin-bottom: 25px;
        }

        .summary-points {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 25px;
        }

        .summary-point {
            background: rgba(255, 255, 255, 0.15);
            padding: 15px 30px;
            border-radius: 30px;
            font-weight: 600;
        }

        /* レスポンシブ */
        @media (max-width: 768px) {
            .header h1 {
                font-size: 2em;
            }

            .section {
                padding: 25px;
            }

            .flow-row {
                flex-direction: column;
                align-items: center;
            }

            .source-box, .output-box {
                min-width: 120px;
            }

            .central-lake {
                padding: 30px 40px;
            }
        }
    
        
        

        

        

        

        

        

        

        /* 読書進捗インジケーター */
        

        

        

        /* トップに戻るボタン */
        

        

        

        

        /* Mobile responsive */
        @media (max-width: 768px) {
            

            

            

            

            
        }