/* ブログページ専用スタイル */

/* 横スクロール防止 */
section {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    box-sizing: border-box;
}

/* ブログヘッダー */
.blog-header {
    background: var(--gradient-primary);
    color: white;
    padding: 8rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/会社イメージ４.png') center/cover;
    opacity: 0.1;
    z-index: -1;
}

.blog-header-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1rem;
    font-weight: 700;
}

.blog-header-content p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.blog-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* フィルター・検索 */
.blog-filters {
    background: white;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filters-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.category-filters {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.6rem 1.2rem;
    border: 2px solid var(--border-light);
    background: white;
    color: var(--text-light);
    border-radius: 25px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.search-container {
    position: relative;
    min-width: 300px;
}

.search-container input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 3rem;
    border: 2px solid var(--border-light);
    border-radius: 25px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.search-container i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

/* ブログレイアウト */
.blog-main {
    padding: 4rem 0;
    background: var(--bg-light);
}

.blog-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.blog-articles {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* 記事リンク */
.article-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* 記事カード */
.article-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 0;
}

.article-link:hover .article-card,
.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.article-card.featured {
    grid-template-columns: 1fr;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 2px solid var(--primary-color);
    margin-bottom: 1rem;
}

.article-card.featured .article-image {
    height: 300px;
}

.article-card.featured .article-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.article-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

.article-card:hover .article-img {
    transform: scale(1.05);
}

.article-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--gradient-primary);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.read-time {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

.article-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.article-content h2,
.article-content h3 {
    color: var(--text-dark);
    line-height: 1.4;
    margin-bottom: 1rem;
}

.article-content h3 {
    font-size: 1.3rem;
}

.article-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

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

.author-name {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.publish-date {
    font-size: 0.8rem;
    color: var(--text-light);
}

.article-actions {
    display: flex;
    gap: 1rem;
}

.like-btn,
.share-btn {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

.like-btn:hover {
    color: #ef4444;
}

.share-btn:hover {
    color: var(--primary-color);
}

/* ページネーション */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 3rem;
}

.page-btn {
    padding: 0.8rem 1.5rem;
    border: 2px solid var(--border-light);
    background: white;
    color: var(--text-dark);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.page-btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.page-number {
    width: 40px;
    height: 40px;
    border: 2px solid var(--border-light);
    background: white;
    color: var(--text-dark);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.page-number:hover,
.page-number.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.page-dots {
    color: var(--text-light);
    font-weight: 600;
}

/* サイドバー */
.blog-sidebar-page {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.blog-sidebar-page .sidebar-widget {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-light);
}

.popular-posts {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.popular-post {
    display: flex;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.popular-post:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.popular-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
}

.popular-img {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

.popular-content h5 {
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.popular-views {
    font-size: 0.8rem;
    color: var(--text-light);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tag {
    background: var(--bg-light);
    color: var(--text-dark);
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.archive-list {
    list-style: none;
}

.archive-list li {
    margin-bottom: 0.8rem;
}

.archive-list a {
    text-decoration: none;
    color: var(--text-light);
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

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

.archive-list span {
    font-size: 0.8rem;
    color: var(--text-light);
}

.newsletter {
    background: var(--gradient-primary) !important;
    color: white;
}

.newsletter h4 {
    color: white;
}

.newsletter p {
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.newsletter-form input {
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
}

.newsletter-form input:focus {
    outline: none;
}

.newsletter-form .btn {
    background: white;
    color: var(--primary-color);
}

.newsletter-form .btn:hover {
    background: rgba(255, 255, 255, 0.9);
}

/* ナビゲーションのアクティブ状態 */
.nav-menu a.active {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-menu a.active::after {
    width: 100%;
}

/* ロゴリンクのスタイル */
.logo a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-decoration: none;
    color: inherit;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .blog-header {
        padding: 6rem 0 3rem;
    }

    .blog-stats {
        gap: 2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .blog-filters {
        position: static;
        top: auto;
    }

    .filters-container {
        flex-direction: column;
        gap: 1.5rem;
    }

    .search-container {
        min-width: auto;
        width: 100%;
    }

    .category-filters {
        justify-content: center;
    }

    .blog-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .article-card .article-image {
        height: 200px;
    }

    .article-card.featured .article-image {
        height: 250px;
    }

    .pagination {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .page-numbers {
        order: -1;
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .blog-header-content h1 {
        font-size: 2rem;
    }

    .blog-header-content p {
        font-size: 1.1rem;
    }

    .blog-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .category-filters {
        gap: 0.5rem;
    }

    .filter-btn {
        font-size: 0.8rem;
        padding: 0.5rem 1rem;
    }

    .article-content {
        padding: 1.5rem;
    }

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

/* アニメーション */
.article-card {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.article-card:nth-child(1) { animation-delay: 0.1s; }
.article-card:nth-child(2) { animation-delay: 0.2s; }
.article-card:nth-child(3) { animation-delay: 0.3s; }
.article-card:nth-child(4) { animation-delay: 0.4s; }
.article-card:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}