/*
 * AWS SAP学習リソース - vpc-dhcp-options-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 18:19:12
 */

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

        body {
            font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            min-height: 100vh;
            color: #e8e8e8;
            line-height: 1.8;
        
            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;
            margin-bottom: 50px;
            padding: 40px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
            position: relative;
            overflow: hidden;
        }

        .header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0%, 100% { transform: rotate(0deg); }
            50% { transform: rotate(180deg); }
        }

        .header h1 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            position: relative;
            z-index: 1;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }

        .header p {
            font-size: 1.2rem;
            opacity: 0.95;
            position: relative;
            z-index: 1;
        }

        .header-icon {
            font-size: 4rem;
            margin-bottom: 20px;
            display: block;
        }

        /* セクション共通 */
        .section {
            margin-bottom: 40px;
        }

        .section-title {
            font-size: 1.8rem;
            margin-bottom: 25px;
            padding-left: 20px;
            border-left: 5px solid #667eea;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* カード */
        .card {
            background: linear-gradient(145deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 30px;
            margin-bottom: 25px;
            border: 1px solid rgba(255,255,255,0.1);
            transition: all 0.3s ease;
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.3);
            border-color: rgba(102, 126, 234, 0.5);
        }

        /* たとえ話セクション */
        .analogy-box {
            background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            border-radius: 20px;
            padding: 35px;
            margin-bottom: 30px;
            position: relative;
            overflow: hidden;
        }

        .analogy-box::after {
            content: '🏨';
            position: absolute;
            right: 20px;
            bottom: 10px;
            font-size: 5rem;
            opacity: 0.2;
        }

        .analogy-title {
            font-size: 1.5rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .analogy-content {
            font-size: 1.1rem;
            line-height: 2;
            position: relative;
            z-index: 1;
        }

        /* 比較図 */
        .comparison-container {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: center;
            margin: 30px 0;
        }

        .comparison-item {
            background: linear-gradient(145deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.05) 100%);
            border-radius: 16px;
            padding: 25px;
            text-align: center;
        }

        .comparison-icon {
            font-size: 3rem;
            margin-bottom: 15px;
        }

        .comparison-arrow {
            font-size: 2rem;
            color: #667eea;
        }

        /* フローチャート */
        .flow-container {
            display: flex;
            flex-direction: column;
            gap: 15px;
            padding: 20px;
        }

        .flow-step {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .flow-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .flow-content {
            flex: 1;
            background: rgba(255,255,255,0.08);
            padding: 20px;
            border-radius: 12px;
            border-left: 4px solid #667eea;
        }

        .flow-connector {
            width: 4px;
            height: 30px;
            background: linear-gradient(to bottom, #667eea, #764ba2);
            margin-left: 23px;
        }

        /* DHCPオプション一覧 */
        .options-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .option-card {
            background: linear-gradient(145deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
            border-radius: 16px;
            padding: 25px;
            border: 1px solid rgba(102, 126, 234, 0.3);
            transition: all 0.3s ease;
        }

        .option-card:hover {
            transform: scale(1.02);
            border-color: #667eea;
        }

        .option-name {
            font-size: 1.1rem;
            color: #a8d8ff;
            margin-bottom: 10px;
            font-family: 'Courier New', monospace;
            background: rgba(0,0,0,0.3);
            padding: 8px 12px;
            border-radius: 8px;
            display: inline-block;
        }

        .option-desc {
            margin-top: 10px;
            opacity: 0.9;
        }

        .option-analogy {
            margin-top: 12px;
            padding: 12px;
            background: rgba(240, 147, 251, 0.15);
            border-radius: 10px;
            font-size: 0.95rem;
            border-left: 3px solid #f093fb;
        }

        /* アーキテクチャ図 */
        .architecture {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            border-radius: 20px;
            padding: 30px;
            margin: 30px 0;
        }

        .arch-title {
            text-align: center;
            font-size: 1.4rem;
            margin-bottom: 25px;
            color: #ffd93d;
        }

        .arch-diagram {
            display: flex;
            justify-content: space-around;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .arch-box {
            background: rgba(255,255,255,0.1);
            border-radius: 16px;
            padding: 20px 30px;
            text-align: center;
            min-width: 150px;
            border: 2px dashed rgba(255,255,255,0.3);
            transition: all 0.3s ease;
        }

        .arch-box:hover {
            background: rgba(255,255,255,0.2);
            border-style: solid;
        }

        .arch-box-icon {
            font-size: 2.5rem;
            margin-bottom: 10px;
        }

        .arch-arrow {
            font-size: 2rem;
            color: #ffd93d;
        }

        /* コード */
        .code-block {
            background: #0d1117;
            border-radius: 12px;
            padding: 20px;
            margin: 20px 0;
            overflow-x: auto;
            border: 1px solid #30363d;
        }

        .code-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid #30363d;
        }

        .code-lang {
            background: #238636;
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
        }

        .code-block pre {
            color: #c9d1d9;
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            line-height: 1.6;
            white-space: pre-wrap;
        }

        .code-comment {
            color: #8b949e;
        }

        .code-key {
            color: #ff7b72;
        }

        .code-value {
            color: #a5d6ff;
        }

        .code-string {
            color: #7ee787;
        }

        /* 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(145deg, rgba(0, 206, 201, 0.15) 0%, rgba(0, 206, 201, 0.05) 100%);
            border-radius: 16px;
            padding: 25px;
            border: 1px solid rgba(0, 206, 201, 0.3);
            transition: all 0.3s ease;
        }

        .usecase-card:hover {
            border-color: #00cec9;
            box-shadow: 0 10px 30px rgba(0, 206, 201, 0.2);
        }

        .usecase-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .usecase-title {
            font-size: 1.2rem;
            color: #00cec9;
            margin-bottom: 12px;
        }

        /* 警告・ヒント */
        .alert {
            border-radius: 12px;
            padding: 20px 25px;
            margin: 20px 0;
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }

        .alert-warning {
            background: linear-gradient(135deg, rgba(253, 203, 110, 0.2) 0%, rgba(253, 203, 110, 0.1) 100%);
            border-left: 4px solid #fdcb6e;
        }

        .alert-info {
            background: linear-gradient(135deg, rgba(116, 185, 255, 0.2) 0%, rgba(116, 185, 255, 0.1) 100%);
            border-left: 4px solid #74b9ff;
        }

        .alert-success {
            background: linear-gradient(135deg, rgba(0, 206, 201, 0.2) 0%, rgba(0, 206, 201, 0.1) 100%);
            border-left: 4px solid #00cec9;
        }

        .alert-icon {
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        /* ベストプラクティス */
        .best-practice-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .best-practice-item {
            display: flex;
            gap: 15px;
            align-items: flex-start;
            padding: 20px;
            background: rgba(255,255,255,0.05);
            border-radius: 12px;
            transition: all 0.3s ease;
        }

        .best-practice-item:hover {
            background: rgba(255,255,255,0.1);
            transform: translateX(5px);
        }

        .bp-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #00b894 0%, #00cec9 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-item {
            background: rgba(255,255,255,0.05);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .faq-question {
            padding: 20px 25px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .faq-question:hover {
            background: rgba(102, 126, 234, 0.1);
        }

        .faq-answer {
            padding: 0 25px 20px;
            opacity: 0.9;
            line-height: 1.8;
        }

        .faq-icon {
            margin-right: 10px;
        }

        /* 比較テーブル */
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            background: rgba(255,255,255,0.05);
            border-radius: 12px;
            overflow: hidden;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 15px 20px;
            text-align: left;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .comparison-table th {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            font-weight: 600;
        }

        .comparison-table tr:hover td {
            background: rgba(255,255,255,0.05);
        }

        /* レスポンシブ */
        @media (max-width: 768px) {
            .header h1 {
                font-size: 1.8rem;
            }

            .comparison-container {
                grid-template-columns: 1fr;
            }

            .comparison-arrow {
                transform: rotate(90deg);
            }

            .arch-diagram {
                flex-direction: column;
            }

            .arch-arrow {
                transform: rotate(90deg);
            }
        }

        /* まとめカード */
        .summary-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
            border-radius: 24px;
            padding: 40px;
            margin-top: 40px;
            text-align: center;
        }

        .summary-title {
            font-size: 1.6rem;
            margin-bottom: 25px;
        }

        .summary-points {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
        }

        .summary-point {
            background: rgba(255,255,255,0.2);
            padding: 20px 30px;
            border-radius: 16px;
            min-width: 200px;
        }

        .summary-point-icon {
            font-size: 2.5rem;
            margin-bottom: 10px;
        }
    
        
        

        

        

        

        

        

        

        /* 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) {
            

            

            

            

            
        }