/**
 * ブログ専用スタイル
 * 感動循環ネットワーク / Kando Circulation Network
 */

/* ============= ブログヒーロー ============= */
.blog-hero {
    background: linear-gradient(135deg, #f5f2ed 0%, #e8dfd0 100%);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    border-bottom: 2px solid var(--border-color);
}

.blog-hero h1 {
    margin-bottom: var(--spacing-sm);
}

.blog-hero p {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ============= ブログレイアウト ============= */
.blog-container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.blog-main {
    min-width: 0; /* グリッドオーバーフロー防止 */
}

.blog-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

/* ============= ブログカード（記事一覧） ============= */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.blog-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.blog-card-image {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 */
    overflow: hidden;
    background: var(--bg-secondary);
}

.blog-card-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-category-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.blog-card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-light);
}

.blog-meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.blog-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.blog-tag {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
}

.blog-read-more {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-read-more:hover {
    color: var(--primary-dark);
}

/* ============= ブログ記事詳細 ============= */
.blog-article,
.blog-post {
    background: var(--bg-card);
    border-radius: 16px;
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
    max-width: 100%;
    overflow-x: hidden;
}

.blog-article-header,
.blog-post-header {
    margin-bottom: var(--spacing-xl);
}

.blog-article-title,
.blog-post-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-meta,
.blog-post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    color: var(--text-light);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.blog-article-image,
.blog-post-featured-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: var(--spacing-xl);
}

.blog-article-content,
.blog-post-content {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 100%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* マークダウンコンテンツのスタイル */
.blog-article-content h2,
.blog-post-content h2 {
    font-size: 1.75rem;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-content h3,
.blog-post-content h3 {
    font-size: 1.5rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-content h4,
.blog-post-content h4 {
    font-size: 1.25rem;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-content p,
.blog-post-content p {
    margin-bottom: var(--spacing-md);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-content a,
.blog-post-content a {
    color: var(--primary-color);
    text-decoration: underline;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-content ul,
.blog-article-content ol,
.blog-post-content ul,
.blog-post-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.blog-article-content li,
.blog-post-content li {
    margin-bottom: var(--spacing-xs);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-content img,
.blog-post-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--spacing-md) 0;
}

.blog-article-content blockquote,
.blog-post-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    color: var(--text-light);
    font-style: italic;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-content code,
.blog-post-content code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-article-content pre,
.blog-post-content pre {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.blog-article-content pre code,
.blog-post-content pre code {
    background: none;
    padding: 0;
}

/* ============= カテゴリー・タグフィルター ============= */
.blog-categories {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.blog-category-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.blog-category-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.blog-category-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.blog-tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.blog-tag-cloud-item {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.blog-tag-cloud-item:hover {
    background: var(--primary-color);
    color: white;
}

.blog-tag-cloud-item.active {
    background: var(--primary-color);
    color: white;
}

/* ============= サイドバー ============= */
.blog-sidebar-section {
    background: var(--bg-card);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.blog-sidebar-section h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.blog-related-posts {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.blog-related-item {
    display: flex;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.blog-related-item:hover {
    transform: translateX(4px);
}

.blog-related-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.blog-related-content {
    flex: 1;
}

.blog-related-title {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-related-date {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* ============= 検索ボックス ============= */
.blog-search {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.blog-search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: 40px;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.blog-search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.blog-search-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

/* ============= レスポンシブ ============= */
@media (max-width: 1024px) {
    .blog-container {
        grid-template-columns: 1fr;
    }
    
    .blog-sidebar {
        position: static;
        margin-top: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: var(--spacing-lg) 0;
    }
    
    .blog-hero h1 {
        font-size: 1.75rem;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .blog-card {
        margin-bottom: var(--spacing-md);
    }
    
    .blog-container {
        gap: var(--spacing-lg);
        margin-top: var(--spacing-lg);
    }
    
    /* 記事詳細ページ */
    .blog-article,
    .blog-post {
        padding: var(--spacing-md);
    }
    
    .blog-article-title,
    .blog-post-title {
        font-size: 1.5rem;
        line-height: 1.4;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .blog-article-content,
    .blog-post-content {
        font-size: 1rem;
        line-height: 1.7;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .blog-article-content *,
    .blog-post-content * {
        max-width: 100%;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .blog-article-content img,
    .blog-post-content img {
        width: 100%;
        height: auto;
    }
    
    .blog-article-content pre,
    .blog-post-content pre {
        overflow-x: auto;
        white-space: pre-wrap;
        word-wrap: break-word;
    }
    
    .blog-article-content table,
    .blog-post-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .blog-article-meta,
    .blog-post-meta {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        font-size: 0.875rem;
    }
    
    .blog-categories {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: var(--spacing-sm);
    }
    
    .blog-category-btn {
        white-space: nowrap;
        font-size: 0.875rem;
        padding: 0.375rem 0.75rem;
    }
    
    .blog-search-input {
        font-size: 1rem;
    }
    
    .blog-sidebar-section {
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .blog-hero {
        padding: var(--spacing-md) 0;
    }
    
    .blog-hero h1 {
        font-size: 1.5rem;
    }
    
    .blog-hero p {
        font-size: 0.875rem;
    }
    
    .blog-card-content {
        padding: var(--spacing-md);
    }
    
    .blog-card-title {
        font-size: 1.125rem;
    }
    
    .blog-card-excerpt {
        font-size: 0.875rem;
    }
    
    .blog-card-meta {
        font-size: 0.75rem;
        flex-wrap: wrap;
    }
    
    .blog-article-title,
    .blog-post-title {
        font-size: 1.25rem;
    }
    
    .blog-article-content h2,
    .blog-post-content h2 {
        font-size: 1.25rem;
    }
    
    .blog-article-content h3,
    .blog-post-content h3 {
        font-size: 1.125rem;
    }
    
    .blog-article-content,
    .blog-post-content {
        font-size: 0.9375rem;
    }
    
    .blog-category-btn {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
}