/* ==========================================
   ブログ機能専用スタイル
   ========================================== */

/* ブログヒーローセクション */
.blog-hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: calc(var(--spacing-xl) + 60px) 0 var(--spacing-lg);
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 215, 0, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.blog-hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.blog-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 215, 0, 0.1);
    border: 2px solid var(--color-accent);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 20px;
    animation: glow 2s ease-in-out infinite;
}

.blog-hero-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-accent);
    margin-bottom: 15px;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.blog-hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
}

/* ブログ記事一覧 */
.blog-list {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-dark);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

/* ブログカード */
.blog-card {
    background: var(--color-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 215, 0, 0.1);
    position: relative;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.2);
    border-color: var(--color-accent);
}

.blog-card-thumbnail {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.blog-card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-card-thumbnail img {
    transform: scale(1.1);
}

.blog-card-no-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-no-image i {
    font-size: 4rem;
    color: rgba(255, 215, 0, 0.2);
}

.blog-card-category {
    position: absolute;
    top: 15px;
    left: 15px;
    z-index: 2;
}

.category-badge {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.blog-card-content {
    padding: 25px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.blog-card-date {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.blog-card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.4;
}

.blog-card-title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.blog-card-title a:hover {
    color: var(--color-accent);
}

.blog-card-excerpt {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 20px;
}

.blog-card-readmore {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent);
    font-weight: 700;
    text-decoration: none;
    transition: gap 0.3s ease;
}

.blog-card-readmore:hover {
    gap: 12px;
}

/* 記事がない場合 */
.blog-no-posts {
    text-align: center;
    padding: 80px 20px;
}

.no-posts-content {
    max-width: 500px;
    margin: 0 auto;
}

.no-posts-content i {
    font-size: 5rem;
    color: rgba(255, 215, 0, 0.3);
    margin-bottom: 20px;
}

.no-posts-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--color-accent);
}

.no-posts-content p {
    color: var(--color-text-light);
    margin-bottom: 30px;
}

/* ページネーション */
.blog-pagination {
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.blog-pagination ul {
    display: flex;
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.blog-pagination li {
    margin: 0;
}

.blog-pagination a,
.blog-pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 45px;
    height: 45px;
    padding: 0 15px;
    background: var(--color-bg);
    border: 2px solid rgba(255, 215, 0, 0.2);
    border-radius: 8px;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
}

.blog-pagination a:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.blog-pagination .current {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
}

/* ==========================================
   個別記事ページ
   ========================================== */

/* 記事ヒーロー */
.single-hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: var(--spacing-lg) 0;
    position: relative;
}

.single-hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.single-category {
    margin-bottom: 20px;
}

.single-title {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-accent);
    margin-bottom: 20px;
    line-height: 1.3;
}

.single-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.single-date,
.single-updated {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* アイキャッチ画像 */
.single-thumbnail {
    background: var(--color-bg-dark);
    padding: 30px 0;
}

.single-thumbnail img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* 記事本文 */
.single-content {
    background: var(--color-bg-dark);
    padding: var(--spacing-lg) 0;
}

.single-body {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-bg);
    padding: 40px;
    border-radius: 12px;
    line-height: 1.8;
    font-size: 1.05rem;
}

.single-body h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-accent);
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--color-accent);
}

.single-body h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 30px 0 15px;
}

.single-body p {
    margin-bottom: 20px;
}

.single-body ul,
.single-body ol {
    margin: 20px 0;
    padding-left: 30px;
}

.single-body li {
    margin-bottom: 10px;
}

.single-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
}

/* タグ */
.single-tags {
    max-width: 800px;
    margin: 30px auto 0;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.single-tags i {
    color: var(--color-accent);
}

.single-tags a {
    display: inline-block;
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.3);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--color-accent);
    text-decoration: none;
    transition: all 0.3s ease;
}

.single-tags a:hover {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
}

/* SNSシェアボタン */
.single-share {
    max-width: 800px;
    margin: 50px auto;
    padding: 30px;
    background: var(--color-bg);
    border-radius: 12px;
    border: 2px solid rgba(255, 215, 0, 0.2);
}

.share-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--color-accent);
}

.share-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.share-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.share-btn-twitter {
    background: #1DA1F2;
    color: white;
}

.share-btn-facebook {
    background: #1877F2;
    color: white;
}

.share-btn-line {
    background: #06C755;
    color: white;
}

.share-btn-copy {
    background: var(--color-bg-dark);
    color: var(--color-text);
    border: 2px solid rgba(255, 215, 0, 0.3);
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* 著者情報 */
.single-author {
    max-width: 800px;
    margin: 30px auto;
    padding: 30px;
    background: var(--color-bg);
    border-radius: 12px;
    border: 2px solid rgba(255, 215, 0, 0.2);
    display: flex;
    gap: 20px;
    align-items: center;
}

.author-avatar {
    flex-shrink: 0;
}

.author-avatar i {
    font-size: 4rem;
    color: var(--color-accent);
}

.author-name {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--color-accent);
}

.author-bio {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* 前後の記事ナビゲーション */
.single-navigation {
    max-width: 800px;
    margin: 50px auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.nav-post {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    background: var(--color-bg);
    border: 2px solid rgba(255, 215, 0, 0.2);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav-post:hover {
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(255, 215, 0, 0.2);
}

.nav-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-weight: 700;
}

.nav-post-next .nav-label {
    justify-content: flex-end;
}

.nav-title {
    color: var(--color-text);
    font-weight: 700;
    line-height: 1.4;
}

.nav-post-next .nav-title {
    text-align: right;
}

/* 一覧に戻るボタン */
.single-back {
    text-align: center;
    margin-top: 50px;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .blog-hero-title {
        font-size: 2rem;
    }

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

    .single-title {
        font-size: 1.8rem;
    }

    .single-body {
        padding: 25px;
    }

    .single-author {
        flex-direction: column;
        text-align: center;
    }

    .share-buttons {
        justify-content: center;
    }

    .single-navigation {
        grid-template-columns: 1fr;
    }

    .nav-post-next .nav-label,
    .nav-post-next .nav-title {
        text-align: left;
        justify-content: flex-start;
    }
}