/* ========================================
   ブログ・お知らせ共通スタイル
   ======================================== */

/* ページヘッダー */
.page-header {
    margin-bottom: 50px;
    text-align: center;
}

.page-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-color-2);
    margin: 0;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--secondary-color);
    position: relative;
    overflow: hidden;
}

.page-title::before {
    content: attr(data-title);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 8rem;
    font-weight: 900;
    font-style: italic;
    letter-spacing: 0.1em;
    color: var(--text-color-2);
    opacity: 0.08;
    white-space: nowrap;
    z-index: 0;
    pointer-events: none;
    line-height: 1;
}

.page-title > * {
    position: relative;
    z-index: 1;
}

/* ページネーション */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.pagination .nav-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 15px;
    font-size: 1rem;
    color: var(--text-color-2);
    text-decoration: none;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.pagination .page-numbers:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.pagination .page-numbers.current {
    background-color: var(--primary-color);
    color: var(--text-color-1);
    border-color: var(--primary-color);
    font-weight: bold;
}

.pagination .prev,
.pagination .next {
    padding: 0 20px;
    font-weight: var(--font-weight);
}

/* 投稿詳細ページ */
.single-post-page {
    padding: 60px 0;
    background: var(--white);
}

/* パンくずリスト */
.breadcrumbs {
    margin-bottom: 40px;
    font-size: 0.9rem;
    color: var(--text-color-2);
    opacity: 0.8;
}

.breadcrumbs a {
    color: var(--text-color-2);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumbs a:hover {
    color: var(--primary-color);
}

.breadcrumb-separator {
    margin: 0 8px;
    opacity: 0.6;
}

.breadcrumb-current {
    color: var(--text-color-2);
    font-weight: var(--font-weight);
}

/* 記事タイトルエリア */
.single-post .entry-header {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--secondary-color);
}

.single-post .single-post-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-color-2);
    margin: 0 0 20px 0;
    line-height: 1.4;
    font-style: normal;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.single-post .single-post-title::before {
    content: attr(data-title);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 8rem;
    font-weight: 900;
    font-style: italic;
    letter-spacing: 0.1em;
    color: var(--text-color-2);
    opacity: 0.08;
    white-space: nowrap;
    z-index: 0;
    pointer-events: none;
    line-height: 1;
}

.single-post .single-post-title > * {
    position: relative;
    z-index: 1;
}

.single-post .entry-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 0.95rem;
    color: var(--text-color-2);
    opacity: 0.8;
}

.single-post .entry-date {
    display: inline-block;
}

.single-post .entry-categories {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 6px;
}

.single-post .entry-categories .news-category {
    display: inline-block;
    font-size: 0.85rem;
    line-height: 1;
    color: var(--primary-color);
    background: color-mix(in srgb, var(--primary-color) 12%, var(--white));
    border: 1px solid color-mix(in srgb, var(--primary-color) 25%, var(--white));
    padding: 4px 8px;
    border-radius: 999px;
    white-space: nowrap;
}

/* 本文エリア */
.single-post .entry-content {
    line-height: 1.8;
    color: var(--text-color-2);
    margin-bottom: 60px;
    font-size: 1.05rem;
}

/* 本文内の見出しスタイル */
.single-post .entry-content h2 {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-color-2);
    margin: 50px 0 20px 0;
    padding-bottom: 12px;
    border-bottom: 4px solid var(--primary-color);
    line-height: 1.5;
}

.single-post .entry-content h3 {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-color-2);
    margin: 40px 0 15px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
    line-height: 1.5;
}

.single-post .entry-content h4 {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--text-color-2);
    margin: 30px 0 12px 0;
    line-height: 1.5;
}

.single-post .entry-content p {
    margin-bottom: 1.5em;
}

.single-post .entry-content ul,
.single-post .entry-content ol {
    margin: 1.5em 0;
    padding-left: 2em;
    list-style-type: disc;
}

.single-post .entry-content li {
    margin-bottom: 0.5em;
}

.single-post .entry-content a {
    color: var(--primary-color);
    text-decoration: underline;
    transition: opacity 0.3s ease;
}

.single-post .entry-content a:hover {
    opacity: 0.7;
}

/* アイキャッチ画像 */
.single-post .featured-image {
    margin-bottom: 40px;
    border-radius: 8px;
    overflow: hidden;
}

.single-post .blog-featured-image {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16/9;
    object-fit: cover;
}

/* 本文内の画像 */
.single-post .entry-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 30px auto;
    border-radius: 4px;
}

.single-post .entry-content figure {
    margin: 30px 0;
    text-align: center;
}

.single-post .entry-content figure img {
    margin: 0 auto;
}

.single-post .entry-content figcaption {
    font-size: 0.9rem;
    color: var(--text-color-2);
    opacity: 0.7;
    margin-top: 10px;
    text-align: center;
}

/* 前後ナビゲーション */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.post-navigation .nav-previous,
.post-navigation .nav-list,
.post-navigation .nav-next {
    flex: 1;
    text-align: center;
}

.post-navigation .nav-list a,
.post-navigation .nav-previous a,
.post-navigation .nav-next a {
    text-align: center;
}

.post-navigation a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--light-gray);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-color-2);
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.post-navigation a:hover {
    background: var(--primary-color);
    color: var(--text-color-1);
    transform: translateY(-2px);
}

.post-navigation .nav-label {
    display: inline-block;
    font-size: 0.9rem;
    opacity: 0.7;
    line-height: 1;
}

.post-navigation .nav-arrow {
    display: inline-block;
    font-size: 1rem;
    margin: 0 5px;
    line-height: 1;
    transition: transform 0.3s ease;
}

.post-navigation .nav-previous:hover .nav-arrow {
    transform: translateX(-3px);
}

.post-navigation .nav-next:hover .nav-arrow {
    transform: translateX(3px);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
        padding-bottom: 15px;
    }
    
    .page-title::before {
        font-size: 5rem;
    }
    
    .single-post .single-post-title::before {
        font-size: 5rem;
    }
    
    .pagination {
        margin-top: 40px;
        padding-top: 30px;
    }
    
    .pagination .page-numbers {
        min-width: 36px;
        height: 36px;
        padding: 0 12px;
        font-size: 0.9rem;
    }
    
    .pagination .prev,
    .pagination .next {
        padding: 0 15px;
    }
    
    .single-post-page {
        padding: 40px 0;
    }
    
    .breadcrumbs {
        font-size: 0.85rem;
        margin-bottom: 30px;
    }
    
    .single-post .single-post-title {
        font-size: 2rem;
    }
    
    .single-post .entry-meta {
        font-size: 0.9rem;
        gap: 15px;
    }
    
    .single-post .entry-content {
        margin-bottom: 40px;
        font-size: 1rem;
    }
    
    .single-post .entry-content h2 {
        font-size: 1.5rem;
        padding: 12px 0 12px 15px;
        margin: 40px 0 15px 0;
        border-left-width: 3px;
    }
    
    .single-post .entry-content h3 {
        font-size: 1.3rem;
        margin: 30px 0 12px 0;
        border-bottom-width: 2px;
    }
    
    .single-post .entry-content h4 {
        font-size: 1.2rem;
    }
    
    .post-navigation {
        gap: 4px;
        margin-top: 40px;
        padding-top: 30px;
    }
    
    .post-navigation .nav-next {
        text-align: left;
    }
    
    .post-navigation .nav-next a {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.8rem;
    }
    
    .pagination .page-numbers {
        min-width: 32px;
        height: 32px;
        padding: 0 10px;
        font-size: 0.85rem;
    }
    
    .single-post .single-post-title {
        font-size: 1.8rem;
    }
    
    .page-title::before {
        font-size: 4rem;
    }
    
    .single-post .single-post-title::before {
        font-size: 4rem;
    }
    
    .single-post .entry-content h2 {
        font-size: 1.3rem;
        padding: 10px 0 10px 12px;
        border-left-width: 3px;
    }
    
    .single-post .entry-content h3 {
        font-size: 1.2rem;
        border-bottom-width: 1px;
    }
    
    .post-navigation a {
        padding: 8px;
    }
}