/* 記事詳細ページ専用スタイル */

/* パンくずリスト */
.breadcrumb-section {
    background-color: var(--bg-white);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.breadcrumb a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.breadcrumb-separator {
    color: var(--text-light);
}

.breadcrumb-current {
    color: var(--text-dark);
    font-weight: 500;
}

/* 記事ヘッダー */
.article-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 3rem 0 2rem;
    color: white;
}

.container-article {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.article-header-content {
    max-width: 800px;
    margin: 0 auto;
}

.article-category-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.article-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    opacity: 0.95;
    margin-bottom: 2rem;
}

.article-meta-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.article-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 700;
    font-size: 1rem;
}

.author-role {
    font-size: 0.875rem;
    opacity: 0.8;
}

.article-meta-details {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    opacity: 0.9;
}

.meta-item svg {
    opacity: 0.8;
}

/* アイキャッチ画像 */
.article-featured-image {
    margin-top: -3rem;
    margin-bottom: 3rem;
}

.article-featured-image img {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    display: block;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

/* 記事コンテンツレイアウト */
.article-content {
    padding: 2rem 0 4rem;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* メインコンテンツ */
.article-main {
    max-width: 800px;
}

.article-body {
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-dark);
}

.article-body .lead {
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    padding-left: 1.5rem;
    border-left: 4px solid var(--primary-color);
}

.article-body h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 3px solid var(--primary-color);
    color: var(--text-dark);
}

.article-body h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.article-body p {
    margin-bottom: 1.5rem;
}

.article-body ul,
.article-body ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-body li {
    margin-bottom: 0.75rem;
}

.article-body a {
    color: var(--primary-color);
    text-decoration: underline;
    transition: var(--transition);
}

.article-body a:hover {
    color: var(--primary-dark);
}

/* ハイライトボックス */
.article-highlight {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
}

.article-highlight h3 {
    margin-top: 0;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

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

/* 引用 */
.article-quote {
    font-size: 1.25rem;
    font-style: italic;
    padding: 2rem;
    margin: 2.5rem 0;
    background-color: var(--bg-light);
    border-left: 4px solid var(--secondary-color);
    position: relative;
}

.article-quote::before {
    content: '"';
    font-size: 4rem;
    color: var(--secondary-color);
    opacity: 0.3;
    position: absolute;
    top: 0;
    left: 1rem;
    line-height: 1;
}

.article-quote cite {
    display: block;
    margin-top: 1rem;
    font-style: normal;
    font-size: 1rem;
    color: var(--text-gray);
    text-align: right;
}

/* ヒントボックス */
.article-tips {
    background-color: #fffbeb;
    border: 2px solid #fbbf24;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.article-tips h3 {
    margin-top: 0;
    font-size: 1.25rem;
    color: #92400e;
    margin-bottom: 1rem;
}

.article-tips ul {
    margin-bottom: 0;
}

.article-tips li {
    color: #78350f;
}

/* 画像コンテナ */
.article-image-container {
    margin: 2.5rem 0;
}

.article-image-container img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.image-caption {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.75rem;
    font-style: italic;
}

/* タグ */
.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    margin-top: 3rem;
}

.tag-label {
    font-weight: 600;
    color: var(--text-gray);
}

.article-tag {
    padding: 0.5rem 1rem;
    background-color: var(--bg-light);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.article-tag:hover {
    background-color: var(--primary-color);
    color: white;
}

/* シェアボタン */
.article-share {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.share-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.share-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.share-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: white;
}

.share-twitter {
    background-color: #1da1f2;
}

.share-twitter:hover {
    background-color: #0d8ecf;
    transform: translateY(-2px);
}

.share-facebook {
    background-color: #1877f2;
}

.share-facebook:hover {
    background-color: #0c63d4;
    transform: translateY(-2px);
}

.share-line {
    background-color: #00b900;
}

.share-line:hover {
    background-color: #009600;
    transform: translateY(-2px);
}

.share-copy {
    background-color: var(--text-gray);
}

.share-copy:hover {
    background-color: var(--text-dark);
    transform: translateY(-2px);
}

/* 関連記事 */
.related-articles {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.related-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.related-card {
    display: block;
    background-color: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-decoration: none;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.related-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.related-content {
    padding: 1.25rem;
}

.related-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.related-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.related-date {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* サイドバー */
.article-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-card {
    background-color: var(--bg-white);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

/* 目次 */
.table-of-contents {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toc-item {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-gray);
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: var(--transition);
    font-size: 0.875rem;
}

.toc-item:hover {
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    background-color: rgba(102, 126, 234, 0.05);
}

/* 著者カード */
.author-card-content {
    text-align: center;
}

.author-card-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    overflow: hidden;
}

.author-card-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.author-card-role {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.author-card-bio {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-gray);
}

/* CTAカード */
.cta-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
}

.cta-card-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.cta-card-text {
    font-size: 0.875rem;
    margin-bottom: 1.25rem;
    opacity: 0.95;
}

.cta-card-btn {
    display: block;
    padding: 0.75rem 1.5rem;
    background-color: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.cta-card-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 人気記事 */
.popular-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.popular-item {
    display: flex;
    gap: 1rem;
    text-decoration: none;
    padding: 0.75rem;
    border-radius: 8px;
    transition: var(--transition);
}

.popular-item:hover {
    background-color: var(--bg-light);
}

.popular-rank {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.popular-content {
    flex: 1;
}

.popular-content h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

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

/* レスポンシブデザイン */
@media (max-width: 992px) {
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }

    .sidebar-card {
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    .article-title {
        font-size: 1.75rem;
    }

    .article-subtitle {
        font-size: 1rem;
    }

    .article-meta-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .article-meta-details {
        gap: 1rem;
    }

    .article-featured-image {
        margin-top: -2rem;
    }

    .article-body {
        font-size: 1rem;
    }

    .article-body .lead {
        font-size: 1.125rem;
    }

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

    .article-body h3 {
        font-size: 1.25rem;
    }

    .article-quote {
        font-size: 1.125rem;
        padding: 1.5rem;
    }

    .share-buttons {
        grid-template-columns: 1fr;
    }

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

    .article-sidebar {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .breadcrumb {
        font-size: 0.75rem;
    }

    .article-header {
        padding: 2rem 0 1.5rem;
    }

    .article-category-badge {
        font-size: 0.75rem;
        padding: 0.375rem 1rem;
    }

    .article-title {
        font-size: 1.5rem;
    }

    .meta-item {
        font-size: 0.75rem;
    }

    .article-featured-image {
        margin-top: -1.5rem;
    }

    .article-content {
        padding: 1rem 0 2rem;
    }
}

/* シンプルテンプレート用追加スタイル */
.article-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px 2rem 20px;
}

.article-container .article-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 2rem;
    border-radius: 16px;
    color: #1a202c !important;
    margin-bottom: 2rem;
}

.article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.article-meta time {
    font-size: 0.875rem;
    opacity: 0.9;
    color: #1a202c !important;
}

.article-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #1a202c !important;
}

.article-container .article-header h1 {
    font-size: 2rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: #1a202c !important;
}

.article-lead {
    font-size: 1.125rem;
    font-weight: 300;
    opacity: 1;
    color: #1a202c !important;
}

.article-image {
    margin-bottom: 2rem;
    width: 100%;
    max-width: 100%;
}

.article-image img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.article-container .article-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-color);
    color: var(--text-dark);
}

.article-container .article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.article-container .article-content p {
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.article-container .article-content ul,
.article-container .article-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-container .article-content li {
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

@media (max-width: 768px) {
    .article-container .article-header h1 {
        font-size: 1.5rem;
    }

    .article-lead {
        font-size: 1rem;
    }

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

    .article-container .article-content h3 {
        font-size: 1.25rem;
    }

    .article-container .article-content p,
    .article-container .article-content li {
        font-size: 1rem;
    }
}