/* ========================================
   メディアトップ（home.php / category.php）
   ======================================== */

.media-hero {
    text-align: center;
    padding: 80px 24px 48px;
}

.media-hero-title {
    font-size: 36px;
    font-weight: 300;
    letter-spacing: 0.04em;
    line-height: 1.6;
    margin-bottom: 12px;
}

.media-hero-desc {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

/* カテゴリフィルター */
.media-filter {
    display: flex;
    gap: 0;
    justify-content: center;
    flex-wrap: wrap;
    padding: 0 24px 48px;
    border-bottom: 1px solid var(--border);
}

.media-filter-item {
    font-size: 12px;
    letter-spacing: 0.1em;
    padding: 10px 20px;
    border: 1px solid var(--border);
    margin: -1px 0 0 -1px;
    transition: all 0.3s;
}

.media-filter-item:hover {
    border-color: var(--text);
    z-index: 1;
    position: relative;
}

.media-filter-item.is-active {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
    z-index: 2;
    position: relative;
}

/* 記事カードグリッド */
.media-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    max-width: 1080px;
    margin: 0 auto;
}

.media-card {
    background: var(--bg);
}

.media-card-link {
    display: block;
    height: 100%;
    transition: opacity 0.3s;
}

.media-card-link:hover {
    opacity: 0.75;
}

/* テキストのみカード */
.media-card--text .media-card-link {
    border-left: 3px solid transparent;
    transition: border-color 0.3s, opacity 0.3s;
}

.media-card--text .media-card-link:hover {
    border-left-color: var(--text);
    opacity: 1;
}

.media-card-body {
    padding: 28px 24px;
}

.media-card-cat {
    display: inline-block;
    font-size: 10px;
    letter-spacing: 0.15em;
    color: #595959;
    border: 1px solid var(--border);
    padding: 3px 8px;
    margin-bottom: 12px;
}

.media-card-title {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.8;
    letter-spacing: 0.02em;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.media-card-excerpt {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
}

.media-card-date {
    font-size: 11px;
    color: #999;
    letter-spacing: 0.05em;
}

/* ページネーション */
.media-pagination {
    text-align: center;
    padding: 48px 24px;
}

.media-pagination .page-numbers {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 0.1em;
    padding: 10px 16px;
    border: 1px solid var(--border);
    margin: 0 2px;
    transition: all 0.3s;
}

.media-pagination .page-numbers:hover {
    border-color: var(--text);
}

.media-pagination .page-numbers.current {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

.media-empty {
    text-align: center;
    padding: 120px 24px;
    font-size: 16px;
    color: var(--text-light);
}

/* ========================================
   記事シングルページ（single.php）
   ======================================== */

/* パンくず */
.breadcrumb {
    max-width: 720px;
    margin: 0 auto;
    padding: 24px 24px 0;
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    font-size: 11px;
    color: #999;
    letter-spacing: 0.05em;
}

.breadcrumb-list li::after {
    content: '/';
    margin: 0 8px;
    color: #C0C0C0;
}

.breadcrumb-list li:last-child::after {
    display: none;
}

.breadcrumb-list a {
    transition: color 0.2s;
}

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

/* 記事ヘッダー */
.post-header {
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 24px 32px;
}

.post-category {
    display: inline-block;
    font-size: 10px;
    letter-spacing: 0.15em;
    color: #595959;
    border: 1px solid var(--border);
    padding: 4px 10px;
    margin-bottom: 20px;
    transition: border-color 0.3s;
}

.post-category:hover {
    border-color: var(--text);
}

.post-title {
    font-size: 28px;
    font-weight: 400;
    line-height: 1.8;
    letter-spacing: 0.02em;
    margin-bottom: 20px;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 12px;
    color: #999;
    letter-spacing: 0.05em;
}

.post-date--updated::before {
    content: '';
}

.post-read-time {
    color: #595959;
}

/* 目次 */
.post-toc {
    max-width: 720px;
    margin: 0 auto 48px;
    padding: 32px;
    margin-left: auto;
    margin-right: auto;
    background: #FAFAFA;
    border: 1px solid var(--border);
}

.post-toc:empty,
.post-toc.is-empty {
    display: none;
}

.post-toc-title {
    font-size: 12px;
    letter-spacing: 0.15em;
    color: #595959;
    margin-bottom: 16px;
}

.post-toc-list {
    list-style: none;
    counter-reset: toc;
}

.post-toc-list li {
    counter-increment: toc;
    padding: 6px 0;
    font-size: 14px;
    line-height: 1.6;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.post-toc-list li:last-child {
    border-bottom: none;
}

.post-toc-list li::before {
    content: counter(toc) '.';
    margin-right: 8px;
    color: #999;
    font-size: 12px;
}

.post-toc-list a {
    transition: color 0.2s;
}

.post-toc-list a:hover {
    color: var(--text-light);
}

/* H3 ネスト用 */
.post-toc-list .toc-sub {
    list-style: none;
    padding-left: 20px;
    counter-reset: toc-sub;
}

.post-toc-list .toc-sub li {
    counter-increment: toc-sub;
    font-size: 13px;
}

.post-toc-list .toc-sub li::before {
    content: counter(toc) '.' counter(toc-sub);
    margin-right: 8px;
}

/* 本文 */
.post-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px 48px;
    font-size: 16px;
    line-height: 2;
}

.post-content h2 {
    font-size: 22px;
    font-weight: 400;
    line-height: 1.7;
    letter-spacing: 0.02em;
    margin: 56px 0 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.post-content h3 {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.7;
    margin: 40px 0 16px;
}

.post-content h4 {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.7;
    margin: 32px 0 12px;
}

.post-content p {
    margin-bottom: 24px;
}

.post-content ul,
.post-content ol {
    margin: 0 0 24px 24px;
}

.post-content li {
    margin-bottom: 8px;
}

.post-content blockquote {
    margin: 32px 0;
    padding: 24px 24px 24px 20px;
    border-left: 3px solid var(--border);
    color: var(--text-light);
    font-style: italic;
}

.post-content img {
    margin: 24px 0;
    border-radius: 2px;
}

.post-content a {
    border-bottom: 1px solid var(--border);
    transition: border-color 0.2s;
}

.post-content a:hover {
    border-color: var(--text);
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}

.post-content th,
.post-content td {
    padding: 12px 16px;
    border: 1px solid var(--border);
    text-align: left;
}

.post-content th {
    background: #FAFAFA;
    font-weight: 500;
}

/* 記事内広告スロット */
.ad-slot {
    margin: 40px 0;
    padding: 32px 24px;
    background: #FAFAFA;
    border: 1px solid var(--border);
    text-align: center;
    min-height: 100px;
}

.ad-slot-label {
    font-size: 10px;
    letter-spacing: 0.15em;
    color: #C0C0C0;
    margin-bottom: 8px;
}

/* 記事内アフィリエイトボックス */
.inline-affiliate {
    margin: 40px 0;
    padding: 28px 24px;
    border: 1px solid var(--border);
    background: var(--bg);
}

.inline-affiliate-label {
    font-size: 10px;
    letter-spacing: 0.1em;
    color: #999;
    margin-bottom: 12px;
}

.inline-affiliate-title {
    font-size: 17px;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 8px;
}

.inline-affiliate-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 16px;
}

.inline-affiliate .btn {
    font-size: 12px;
    padding: 12px 28px;
}

/* タグ */
.post-tags {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px 48px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.post-tag {
    font-size: 11px;
    letter-spacing: 0.08em;
    padding: 5px 12px;
    border: 1px solid var(--border);
    transition: border-color 0.3s;
}

.post-tag:hover {
    border-color: var(--text);
}

/* 記事下CTA */
.post-cta {
    max-width: 720px;
    margin: 0 auto;
    padding: 64px 24px;
    text-align: center;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.post-cta-title {
    font-size: 22px;
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 12px;
}

.post-cta-desc {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 32px;
}

/* 関連記事 */
.post-related {
    max-width: 1080px;
    margin: 0 auto;
    padding: 64px 24px;
}

.post-related .section-label {
    text-align: center;
}

.media-grid--related {
    grid-template-columns: repeat(4, 1fr);
}

/* レスポンシブ */
@media (max-width: 1024px) {
    .media-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .media-grid--related {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .media-hero-title {
        font-size: 26px;
    }

    .media-filter {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 24px;
        -webkit-overflow-scrolling: touch;
    }

    .media-filter-item {
        white-space: nowrap;
        flex-shrink: 0;
    }

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

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

    .post-title {
        font-size: 22px;
    }

    .post-toc {
        margin-left: 24px;
        margin-right: 24px;
    }

    .post-content {
        font-size: 15px;
    }

    .post-content h2 {
        font-size: 19px;
    }

    .post-content h3 {
        font-size: 17px;
    }
}

@media (max-width: 480px) {
    .media-grid--related {
        grid-template-columns: 1fr;
    }

    .post-meta {
        gap: 8px;
    }
}