/* ===== 記事ページ用スタイル ===== */

/* 記事ヒーロー */
.article-hero {
    background: var(--gradient);
    color: white;
    padding: 60px 0 80px;
    position: relative;
}

.breadcrumb {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 24px;
}

.breadcrumb a {
    color: white;
    opacity: 0.9;
}

.breadcrumb a:hover {
    opacity: 1;
    text-decoration: underline;
}

.article-hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.3;
}

.article-lead {
    font-size: 1.2rem;
    opacity: 0.95;
    max-width: 700px;
    line-height: 1.8;
}

/* 記事コンテンツ */
.article-content {
    padding: 80px 0;
    background: var(--bg-white);
}

.article-content .container {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 60px;
    align-items: start;
}

.article-body {
    max-width: 800px;
}

.article-section {
    margin-bottom: 60px;
}

.article-section h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--primary-color);
}

.article-section h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-top: 32px;
    margin-bottom: 16px;
}

.article-section p {
    color: var(--text-base);
    line-height: 2;
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.article-section ul {
    margin-bottom: 24px;
    padding-left: 0;
    list-style: none;
}

.article-section ul li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    color: var(--text-base);
    line-height: 1.8;
}

.article-section ul li::before {
    content: '•';
    position: absolute;
    left: 8px;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2em;
}

/* 情報ボックス */
.info-box {
    background: var(--gradient-light);
    border-left: 4px solid var(--primary-color);
    padding: 24px 28px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 32px 0;
}

.info-box h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.info-box p {
    margin-bottom: 0;
    color: var(--text-base);
}

/* ハイライトボックス */
.highlight-box {
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    padding: 28px 32px;
    border-radius: var(--radius-lg);
    margin: 32px 0;
}

.highlight-box h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.highlight-box p {
    margin-bottom: 0;
}

/* 強みグリッド */
.strength-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 32px 0;
}

.strength-card {
    background: var(--bg-light);
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.strength-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.strength-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    display: block;
}

.strength-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.strength-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
    line-height: 1.7;
}

/* 参考文献 */
.reference {
    font-size: 0.9rem;
    color: var(--text-light);
    font-style: italic;
    margin-top: 16px;
}

/* CTAボックス */
.cta-box {
    background: var(--gradient-light);
    padding: 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    margin-top: 40px;
}

.cta-box p {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
}

/* サイドナビゲーション */
.article-nav {
    position: sticky;
    top: 100px;
    background: var(--bg-light);
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.article-nav h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.article-nav ul {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
}

.article-nav ul li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.article-nav ul li:last-child {
    border-bottom: none;
}

.article-nav ul li.current {
    color: var(--primary-color);
    font-weight: 600;
}

.article-nav ul li a {
    color: var(--text-base);
    text-decoration: none;
}

.article-nav ul li a:hover {
    color: var(--primary-color);
}

.back-link {
    display: block;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 0.9rem;
    text-decoration: none;
}

.back-link:hover {
    color: var(--primary-color);
}

/* 比較テーブル */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    font-size: 0.95rem;
}

.comparison-table th,
.comparison-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-dark);
}

.comparison-table tr:hover td {
    background: var(--gradient-light);
}

/* 2カラムリスト */
.two-column-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin: 32px 0;
}

.column-box {
    background: var(--bg-light);
    padding: 28px;
    border-radius: var(--radius-lg);
}

.column-box h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.column-box.ai-side {
    border-left: 4px solid #4299e1;
}

.column-box.human-side {
    border-left: 4px solid #48bb78;
}

.column-box ul {
    margin: 0;
}

/* 厳しい現実ボックス */
.harsh-reality {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-left: 4px solid #ef4444;
    padding: 28px 32px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 32px 0;
}

.harsh-reality h3 {
    color: #dc2626;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.harsh-reality ul {
    margin-bottom: 0;
}

/* 比較ボックス */
.comparison-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 32px 0;
}

.compare-item {
    padding: 28px;
    border-radius: var(--radius-lg);
}

.compare-item.negative {
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.compare-item.positive {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
}

.compare-item h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.compare-item.negative h4 {
    color: #dc2626;
}

.compare-item.positive h4 {
    color: #16a34a;
}

.compare-item ul {
    margin: 0;
    padding-left: 0;
}

.compare-item ul li {
    padding: 6px 0;
    font-size: 0.9rem;
}

/* 強みマッチ */
.strength-match {
    display: grid;
    gap: 20px;
    margin: 32px 0;
}

.match-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--bg-light);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.match-strength {
    flex-shrink: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 180px;
}

.match-application {
    font-size: 0.95rem;
    color: var(--text-base);
    line-height: 1.7;
}

/* 書籍カード */
.book-card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin: 32px 0;
    border: 1px solid var(--border-color);
}

.book-card.featured {
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
    border-color: var(--primary-color);
}

.book-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.book-author {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 16px;
}

.book-desc {
    line-height: 1.9;
    margin-bottom: 20px;
}

.mind-strengths {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.mind-item {
    background: var(--bg-white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
}

.mind-item strong {
    color: var(--primary-color);
}

.book-quote {
    font-style: italic;
    color: var(--text-light);
    padding-left: 20px;
    border-left: 3px solid var(--primary-color);
    margin: 20px 0;
}

.book-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.book-links a {
    font-weight: 600;
    font-size: 0.9rem;
}

/* レポートカード */
.report-card {
    background: var(--bg-light);
    padding: 28px 32px;
    border-radius: var(--radius-lg);
    margin: 24px 0;
    border-left: 4px solid var(--primary-color);
}

.report-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.report-card p {
    margin-bottom: 16px;
}

.report-card ul {
    margin-bottom: 16px;
}

.report-link {
    font-weight: 600;
    font-size: 0.95rem;
}

/* リソースグリッド */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin: 32px 0;
}

.resource-card {
    background: var(--bg-light);
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.resource-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.resource-type {
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 12px;
}

.resource-card p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 12px;
}

.resource-card a {
    font-size: 0.9rem;
    font-weight: 600;
}

/* プロセスリスト */
.process-list {
    margin: 32px 0;
}

.process-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border-color);
}

.process-item:last-child {
    border-bottom: none;
}

.process-number {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.process-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.process-content p {
    margin: 0;
    font-size: 0.95rem;
}

/* リソースリスト */
.resource-list {
    display: grid;
    gap: 24px;
    margin: 32px 0;
}

.resource-item {
    background: var(--bg-light);
    padding: 24px 28px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.resource-item h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.resource-item p {
    font-size: 0.95rem;
    margin-bottom: 12px;
    line-height: 1.7;
}

.resource-item a {
    font-size: 0.9rem;
    word-break: break-all;
}

/* プロセス例（会話形式） */
.process-example {
    background: var(--bg-light);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin: 32px 0;
}

.process-step {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-label {
    flex-shrink: 0;
    width: 60px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    padding-top: 12px;
}

.step-content {
    flex: 1;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    line-height: 1.6;
}

.speech-human {
    background: #dbeafe;
    border: 1px solid #93c5fd;
    color: #1e40af;
}

.speech-ai {
    background: #f3e8ff;
    border: 1px solid #d8b4fe;
    color: #6b21a8;
    font-style: italic;
}

/* 役割分担 */
.role-division {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 32px 0;
}

.role-box {
    padding: 28px;
    border-radius: var(--radius-lg);
}

.human-role {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border: 1px solid #93c5fd;
}

.ai-role {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    border: 1px solid #d8b4fe;
}

.role-box h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.human-role h4 {
    color: #1e40af;
}

.ai-role h4 {
    color: #6b21a8;
}

.role-box ul {
    margin: 0;
    padding-left: 0;
}

.role-box ul li {
    padding: 6px 0;
    font-size: 0.9rem;
}

/* 代替方法 */
.alternative-methods {
    display: grid;
    gap: 20px;
    margin: 32px 0;
}

.method-item {
    display: flex;
    gap: 20px;
    background: var(--bg-light);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.method-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.method-content h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.method-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-base);
    line-height: 1.8;
}

/* Why good at AI リスト */
.why-good-at-ai {
    display: grid;
    gap: 20px;
    margin: 32px 0;
}

.reason-item {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 24px 28px;
    border-radius: var(--radius-md);
    border-left: 4px solid #0ea5e9;
}

.reason-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #0369a1;
    margin-bottom: 8px;
}

.reason-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-base);
    line-height: 1.7;
}

/* How it works リスト */
.how-it-works {
    display: grid;
    gap: 20px;
    margin: 32px 0;
}

.how-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--bg-light);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.how-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.how-content h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.how-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-base);
    line-height: 1.7;
}

/* 代替選択肢リスト */
.alternative-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 32px 0;
}

.alt-item {
    display: flex;
    gap: 16px;
    background: var(--bg-light);
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.alt-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.alt-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.alt-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.alt-content p {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* フロー図 */
.flow-diagram {
    background: var(--bg-light);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin: 32px 0;
}

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

.flow-number {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.flow-content h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.flow-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-base);
    line-height: 1.7;
}

.flow-arrow {
    text-align: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    padding: 12px 0;
    padding-left: 20px;
}

/* 順序ボックス */
.order-box {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin: 32px 0;
}

.order-box h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
    text-align: center;
}

.order-steps {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.order-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step-number {
    width: 36px;
    height: 36px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.step-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

.highlight-box.green {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-color: #22c55e;
}

.highlight-box.green h4 {
    color: #16a34a;
}

.highlight-box ul {
    margin: 0;
    padding-left: 0;
}

.highlight-box ul li {
    padding: 6px 0;
}

/* 始めやすさボックス */
.easy-start {
    background: linear-gradient(135deg, #fefce8 0%, #fef9c3 100%);
    border: 1px solid #facc15;
    padding: 28px 32px;
    border-radius: var(--radius-lg);
    margin: 32px 0;
}

.easy-start h3 {
    color: #a16207;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.easy-start ul {
    margin: 0;
}

/* レスポンシブ */
@media (max-width: 1024px) {
    .article-content .container {
        grid-template-columns: 1fr;
    }

    .article-nav {
        position: static;
        margin-top: 40px;
    }

    .strength-grid {
        grid-template-columns: 1fr;
    }

    .two-column-list {
        grid-template-columns: 1fr;
    }

    .resource-grid {
        grid-template-columns: 1fr;
    }

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

    .match-item {
        flex-direction: column;
        gap: 12px;
    }

    .match-strength {
        min-width: auto;
    }

    .alternative-list {
        grid-template-columns: 1fr;
    }

    .role-division {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .article-hero {
        padding: 40px 0 60px;
    }

    .article-hero h1 {
        font-size: 2rem;
    }

    .article-lead {
        font-size: 1.05rem;
    }

    .article-content {
        padding: 60px 0;
    }

    .article-section h2 {
        font-size: 1.5rem;
    }

    .info-box,
    .highlight-box {
        padding: 20px;
    }

    .strength-card {
        padding: 20px;
    }
}