.blog-page,
.post-page {
    padding-top: 61px;
}

.blog-hero {
    padding: 120px 20px 80px;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.blog-content {
    padding: 80px 20px;
    max-width: 900px;
    margin: 0 auto;
}

/* Category Filter */
.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--color-border);
}

.category-item {
    padding: 10px 20px;
    border: 1px solid var(--color-border);
    font-size: 14px;
    letter-spacing: 0.05em;
    transition: background 0.3s, color 0.3s;
}

.category-item:hover,
.category-item.active {
    background: var(--color-text);
    color: var(--color-bg);
}

/* Article List */
.article-list {
    display: grid;
    gap: 60px;
}

.article-card {
    padding-bottom: 40px;
    border-bottom: 1px solid var(--color-border);
}

.article-meta {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 15px;
    font-size: 12px;
    font-family: var(--font-mono);
}

.article-date {
    color: var(--color-gray);
    letter-spacing: 0.05em;
}

.article-category {
    padding: 4px 12px;
    background: #fafafa;
    border: 1px solid var(--color-border);
    letter-spacing: 0.05em;
}

.article-title {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-bottom: 15px;
    line-height: 1.5;
}

.article-title a {
    transition: color 0.3s;
}

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

.article-excerpt {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-gray);
    margin-bottom: 20px;
}

.article-link {
    display: inline-block;
    font-size: 14px;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 2px;
    transition: transform 0.3s;
}

.article-link:hover {
    transform: translateX(5px);
}

/* No Articles */
.no-articles {
    text-align: center;
    padding: 100px 20px;
    color: var(--color-gray);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}

.pagination-link {
    font-size: 14px;
    letter-spacing: 0.05em;
    padding: 10px 20px;
    border: 1px solid var(--color-border);
    transition: background 0.3s, color 0.3s;
}

.pagination-link:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

.pagination-info {
    font-size: 14px;
    font-family: var(--font-mono);
    color: var(--color-gray);
}

/* Post Page */
.post-content {
    padding: 120px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.post-meta {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 30px;
    font-size: 12px;
    font-family: var(--font-mono);
}

.post-date {
    color: var(--color-gray);
    letter-spacing: 0.05em;
}

.post-category {
    padding: 4px 12px;
    background: #fafafa;
    border: 1px solid var(--color-border);
    letter-spacing: 0.05em;
}

.post-title {
    font-size: clamp(28px, 5vw, 40px);
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1.5;
    margin-bottom: 40px;
}

.post-image {
    margin-bottom: 60px;
    border: 1px solid var(--color-border);
}

.post-image img {
    width: 100%;
    height: auto;
    display: block;
}

.post-body {
    font-size: 16px;
    line-height: 2;
    margin-bottom: 80px;
}

.post-body h1 {
    font-size: 32px;
    font-weight: 700;
    margin: 60px 0 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
}

.post-body h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 50px 0 25px;
}

.post-body h3 {
    font-size: 24px;
    font-weight: 700;
    margin: 40px 0 20px;
}

.post-body p {
    margin-bottom: 30px;
}

.post-body ul {
    margin-bottom: 30px;
    padding-left: 0;
    list-style: none;
}

.post-body li {
    padding-left: 30px;
    position: relative;
    margin-bottom: 15px;
}

.post-body li::before {
    content: '・';
    position: absolute;
    left: 15px;
}

.post-body a {
    color: var(--color-accent);
    text-decoration: underline;
}

.post-body a:hover {
    opacity: 0.7;
}

.post-body strong {
    font-weight: 700;
}

.post-footer {
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}

.back-link {
    display: inline-block;
    font-size: 14px;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 2px;
    transition: transform 0.3s;
}

.back-link:hover {
    transform: translateX(-5px);
}

@media (max-width: 768px) {
    .blog-content,
    .post-content {
        padding: 60px 20px;
    }
    
    .category-filter {
        margin-bottom: 40px;
    }
    
    .article-list {
        gap: 40px;
    }
    
    .pagination {
        margin-top: 60px;
    }
}