/* style.css */

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

body {
    font-family: 'Hiragino Sans', 'ヒラギノ角ゴシック', 'Yu Gothic', 'メイリオ', sans-serif;
    line-height: 1.7;
    color: #333;
    background-color: #f8fffe;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* ヘッダー */
.header {
    background: linear-gradient(135deg, #1e40af 0%, #059669 100%);
    color: white;
    padding: 30px 0;
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.2rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 著者・監修者カード */
.author-section {
    background: #e0f2fe;
    border-left: 5px solid #0284c7;
    padding: 20px;
    margin-bottom: 30px;
    border-radius: 0 8px 8px 0;
}

.author-section h3 {
    color: #0369a1;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.author-cards {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.author-card {
    flex: 1;
    min-width: 250px;
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.author-card h4 {
    color: #059669;
    margin-bottom: 8px;
}

.author-card a {
    color: #0284c7;
    text-decoration: none;
    font-weight: 500;
}

.author-card a:hover {
    text-decoration: underline;
}

/* メインコンテンツ */
.content {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

h1 {
    color: #1e40af;
    font-size: 2.5rem;
    margin-bottom: 20px;
    text-align: center;
    border-bottom: 3px solid #059669;
    padding-bottom: 15px;
}

h2 {
    color: #1e40af;
    font-size: 1.8rem;
    margin: 40px 0 20px 0;
    padding: 15px 20px;
    background: linear-gradient(90deg, #dbeafe 0%, #d1fae5 100%);
    border-left: 5px solid #059669;
    border-radius: 0 8px 8px 0;
}

h3 {
    color: #059669;
    font-size: 1.3rem;
    margin: 25px 0 15px 0;
    padding: 10px 0 5px 0;
    border-bottom: 2px solid #86efac;
}

p {
    margin-bottom: 15px;
    text-align: justify;
}

/* 画像スタイル */
.article-image {
    width: 100%;
    max-width: 400px;
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
    margin: 20px auto;
    display: block;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* テーブル */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.comparison-table th {
    background: linear-gradient(135deg, #1e40af, #059669);
    color: white;
    padding: 15px;
    text-align: center;
    font-weight: 600;
}

.comparison-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #e5e7eb;
    text-align: center;
}

.comparison-table tr:nth-child(even) {
    background: #f8fafc;
}

/* リスト */
ul, ol {
    margin: 15px 0;
    padding-left: 25px;
}

li {
    margin-bottom: 8px;
    color: #374151;
}

ul li::marker {
    color: #059669;
}

ol li::marker {
    color: #1e40af;
}

/* ハイライトボックス */
.highlight-box {
    background: linear-gradient(135deg, #fef3c7 0%, #d1fae5 100%);
    border: 2px solid #059669;
    padding: 20px;
    margin: 25px 0;
    border-radius: 10px;
    position: relative;
}

.highlight-box::before {
    content: "💡";
    font-size: 1.5rem;
    position: absolute;
    top: -10px;
    left: 20px;
    background: white;
    padding: 0 10px;
}

.highlight-box h4 {
    color: #059669;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

/* プロセスフロー */
.process-flow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 30px 0;
    flex-wrap: wrap;
    gap: 15px;
}

.process-step {
    flex: 1;
    min-width: 200px;
    background: linear-gradient(135deg, #dbeafe 0%, #d1fae5 100%);
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    border: 2px solid #059669;
    position: relative;
}

.process-step::after {
    content: "→";
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: #059669;
    font-weight: bold;
}

.process-step:last-child::after {
    display: none;
}

.process-step h4 {
    color: #1e40af;
    margin-bottom: 10px;
    font-size: 1rem;
}

/* まとめセクション */
.summary {
    background: linear-gradient(135deg, #1e40af 0%, #059669 100%);
    color: white;
    padding: 30px;
    border-radius: 12px;
    margin-top: 40px;
    text-align: center;
}

.summary h2 {
    color: white;
    background: none;
    border: none;
    margin-bottom: 20px;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .content {
        padding: 20px;
    }

    .header h1 {
        font-size: 1.8rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
        padding: 12px 15px;
    }

    h3 {
        font-size: 1.2rem;
    }

    .author-cards {
        flex-direction: column;
    }

    .process-flow {
        flex-direction: column;
    }

    .process-step::after {
        display: none;
    }

    .comparison-table {
        font-size: 0.9rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 8px 10px;
    }

    .article-image {
        max-width: 100%;
        height: 200px;
    }

    .highlight-box {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.5rem;
    }

    h1 {
        font-size: 1.7rem;
    }

    h2 {
        font-size: 1.3rem;
        padding: 10px 12px;
    }

    .content {
        padding: 15px;
    }

    .comparison-table {
        font-size: 0.8rem;
    }

    .process-step {
        min-width: 150px;
        padding: 15px;
    }
}