/**
 * 記事ページ(single.php) 専用CSS
 * portal-mynavi.css のデザインシステムを踏襲
 * 完全レスポンシブ対応
 */

/* =============================================
   グローバル設定（横幅はみ出し防止）
   ============================================= */
* {
    box-sizing: border-box;
}

body.single {
    overflow-x: hidden;
    width: 100%;
}

#content {
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

/* =============================================
   カラー定義(portal-mynavi.cssと統一)
   ============================================= */
:root {
    /* メインアクセントカラー */
    --primary-turquoise: rgb(25, 191, 191);
    --primary-turquoise-hover: rgb(20, 171, 171);
    --primary-turquoise-light: rgba(25, 191, 191, 0.1);
    --primary-turquoise-soft: rgba(25, 191, 191, 0.15);
    
    /* テキストカラー */
    --text-dark: #2d2d2d;
    --text-medium: #6b6b6b;
    --text-light: #999999;
    
    /* 背景カラー */
    --bg-main: #fafafa;
    --bg-card: #ffffff;
    --bg-soft: #f8f8f8;
    --bg-accent: #f5f5f5;
    
    /* ボーダー */
    --border-soft: #e5e5e5;
    --border-light: #f0f0f0;
}

/* =============================================
   記事コンテンツラッパー
   ============================================= */
#inner-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 16px;
    background: var(--bg-main);
}

@media (max-width: 768px) {
    #inner-content {
        padding: 16px 12px;
    }
}

/* =============================================
   メインコンテンツエリア
   ============================================= */
#main {
    background: var(--bg-card);
    border-radius: 16px;
    padding:0;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    margin-bottom: 32px;
}

@media (max-width: 768px) {
    #main {
        border-radius: 12px;
        padding:0;
        margin-bottom: 24px;
    }
}

/* =============================================
   記事エントリー
   ============================================= */
#entry {
    width: 100%;
    max-width: 100%;
}

/* =============================================
   記事ヘッダー(entry-header)
   ============================================= */
.entry-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--border-soft);
}

@media (max-width: 768px) {
    .entry-header {
        margin-bottom: 24px;
        padding-bottom: 20px;
    }
}

/* 記事タイトル */
.entry-title,
.entry-title h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.5;
    margin: 0 0 20px 0;
    letter-spacing: 0.02em;
}

@media (max-width: 768px) {
    .entry-title,
    .entry-title h1 {
        font-size: 22px;
        margin-bottom: 16px;
    }
}

/* カテゴリー・タグ */
.entry-categories,
.entry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

@media (max-width: 768px) {
    .entry-categories,
    .entry-tags {
        gap: 6px;
        margin-bottom: 12px;
    }
}

.entry-categories a,
.entry-tags a {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-turquoise-light);
    color: var(--primary-turquoise);
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--primary-turquoise);
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .entry-categories a,
    .entry-tags a {
        font-size: 11px;
        padding: 5px 12px;
        border-radius: 14px;
    }
}

.entry-categories a:hover,
.entry-tags a:hover {
    background: var(--primary-turquoise);
    color: white;
    transform: translateY(-1px);
}

/* 投稿日・更新日 */
.entry-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: var(--text-medium);
    margin-top: 16px;
}

@media (max-width: 768px) {
    .entry-meta {
        gap: 12px;
        font-size: 12px;
        margin-top: 12px;
    }
}

.entry-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.entry-meta .meta-icon {
    font-size: 14px;
}

@media (max-width: 768px) {
    .entry-meta .meta-icon {
        font-size: 13px;
    }
}

/* アイキャッチ画像 */
.entry-featured-image {
    margin: 24px 0 32px 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

@media (max-width: 768px) {
    .entry-featured-image {
        margin: 20px 0 24px 0;
        border-radius: 10px;
    }
}

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

/* =============================================
   記事本文(entry-content)
   ============================================= */
.entry-content {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-dark);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

@media (max-width: 768px) {
    .entry-content {
        font-size: 15px;
        line-height: 1.85;
    }
}

/* 見出し */
.entry-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 48px 0 24px 0;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--primary-turquoise-light) 0%, rgba(25, 191, 191, 0.05) 100%);
    border-left: 5px solid var(--primary-turquoise);
    border-radius: 8px;
    line-height: 1.5;
    letter-spacing: 0.02em;
}

@media (max-width: 768px) {
    .entry-content h2 {
        font-size: 20px;
        margin: 36px 0 20px 0;
        padding: 14px 16px;
        border-left-width: 4px;
        border-radius: 6px;
    }
}

.entry-content h2:first-child {
    margin-top: 0;
}

.entry-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 36px 0 20px 0;
    padding-left: 16px;
    border-left: 4px solid var(--primary-turquoise);
    line-height: 1.5;
    letter-spacing: 0.02em;
}

@media (max-width: 768px) {
    .entry-content h3 {
        font-size: 18px;
        margin: 28px 0 16px 0;
        padding-left: 14px;
        border-left-width: 3px;
    }
}

.entry-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 28px 0 16px 0;
    padding-left: 12px;
    border-left: 3px solid var(--primary-turquoise);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .entry-content h4 {
        font-size: 16px;
        margin: 24px 0 14px 0;
        padding-left: 10px;
    }
}

.entry-content h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 24px 0 14px 0;
}

@media (max-width: 768px) {
    .entry-content h5 {
        font-size: 15px;
        margin: 20px 0 12px 0;
    }
}

.entry-content h6 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 20px 0 12px 0;
}

@media (max-width: 768px) {
    .entry-content h6 {
        font-size: 14px;
        margin: 18px 0 10px 0;
    }
}

/* 段落 */
.entry-content p {
    margin: 0 0 20px 0;
    line-height: 1.9;
}

@media (max-width: 768px) {
    .entry-content p {
        margin-bottom: 18px;
        line-height: 1.85;
    }
}

.entry-content p:last-child {
    margin-bottom: 0;
}

/* リスト */
.entry-content ul,
.entry-content ol {
    margin: 20px 0;
    padding-left: 28px;
}

@media (max-width: 768px) {
    .entry-content ul,
    .entry-content ol {
        margin: 18px 0;
        padding-left: 24px;
    }
}

.entry-content ul li,
.entry-content ol li {
    margin-bottom: 12px;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .entry-content ul li,
    .entry-content ol li {
        margin-bottom: 10px;
        line-height: 1.75;
    }
}

.entry-content ul li:last-child,
.entry-content ol li:last-child {
    margin-bottom: 0;
}

/* チェックリストスタイル */
.entry-content ul.checklist {
    list-style: none;
    padding-left: 0;
}

.entry-content ul.checklist li {
    position: relative;
    padding-left: 32px;
    margin-bottom: 14px;
}

@media (max-width: 768px) {
    .entry-content ul.checklist li {
        padding-left: 28px;
        margin-bottom: 12px;
    }
}

.entry-content ul.checklist li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-turquoise);
    font-weight: bold;
    font-size: 18px;
}

@media (max-width: 768px) {
    .entry-content ul.checklist li::before {
        font-size: 16px;
    }
}

/* 引用 */
.entry-content blockquote {
    margin: 28px 0;
    padding: 20px 24px;
    background: var(--bg-soft);
    border-left: 4px solid var(--primary-turquoise);
    border-radius: 8px;
    font-style: italic;
    color: var(--text-medium);
}

@media (max-width: 768px) {
    .entry-content blockquote {
        margin: 24px 0;
        padding: 16px 20px;
        border-radius: 6px;
    }
}

.entry-content blockquote p {
    margin-bottom: 12px;
}

.entry-content blockquote p:last-child {
    margin-bottom: 0;
}

.entry-content blockquote cite {
    display: block;
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-light);
    font-style: normal;
}

@media (max-width: 768px) {
    .entry-content blockquote cite {
        font-size: 13px;
        margin-top: 10px;
    }
}

/* コード */
.entry-content code {
    padding: 3px 8px;
    background: var(--bg-soft);
    color: #e83e8c;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
}

@media (max-width: 768px) {
    .entry-content code {
        font-size: 13px;
        padding: 2px 6px;
    }
}

.entry-content pre {
    margin: 24px 0;
    padding: 20px;
    background: #2d2d2d;
    color: #f8f8f8;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .entry-content pre {
        margin: 20px 0;
        padding: 16px;
        font-size: 13px;
        border-radius: 6px;
    }
}

.entry-content pre code {
    padding: 0;
    background: transparent;
    color: inherit;
    border-radius: 0;
}

/* 画像 */
.entry-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 24px 0;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

@media (max-width: 768px) {
    .entry-content img {
        margin: 20px 0;
        border-radius: 6px;
    }
}

.entry-content figure {
    margin: 28px 0;
}

@media (max-width: 768px) {
    .entry-content figure {
        margin: 24px 0;
    }
}

.entry-content figcaption {
    text-align: center;
    font-size: 13px;
    color: var(--text-light);
    margin-top: 10px;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .entry-content figcaption {
        font-size: 12px;
        margin-top: 8px;
    }
}

/* テーブル */
.entry-content table {
    width: 100%;
    margin: 28px 0;
    border-collapse: collapse;
    font-size: 14px;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

@media (max-width: 768px) {
    .entry-content table {
        margin: 24px 0;
        font-size: 13px;
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

.entry-content table thead {
    background: var(--bg-soft);
}

.entry-content table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 2px solid var(--border-soft);
}

@media (max-width: 768px) {
    .entry-content table th {
        padding: 12px 14px;
        font-size: 12px;
    }
}

.entry-content table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-dark);
}

@media (max-width: 768px) {
    .entry-content table td {
        padding: 12px 14px;
        font-size: 12px;
    }
}

.entry-content table tbody tr:hover {
    background: var(--primary-turquoise-light);
}

.entry-content table tbody tr:last-child td {
    border-bottom: none;
}

/* リンク */
.entry-content a {
    color: var(--primary-turquoise);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.entry-content a:hover {
    color: var(--primary-turquoise-hover);
    border-bottom-color: var(--primary-turquoise);
}

/* 強調 */
.entry-content strong,
.entry-content b {
    font-weight: 600;
    color: var(--text-dark);
}

.entry-content em,
.entry-content i {
    font-style: italic;
}

/* 水平線 */
.entry-content hr {
    margin: 32px 0;
    border: none;
    border-top: 2px solid var(--border-soft);
}

@media (max-width: 768px) {
    .entry-content hr {
        margin: 28px 0;
    }
}

/* =============================================
   ボックス・注意書きスタイル
   ============================================= */
.entry-content .info-box,
.entry-content .note-box,
.entry-content .warning-box,
.entry-content .success-box {
    margin: 24px 0;
    padding: 20px 24px;
    border-radius: 10px;
    border-left: 4px solid;
}

@media (max-width: 768px) {
    .entry-content .info-box,
    .entry-content .note-box,
    .entry-content .warning-box,
    .entry-content .success-box {
        margin: 20px 0;
        padding: 16px 20px;
        border-radius: 8px;
    }
}

.entry-content .info-box {
    background: rgba(25, 191, 191, 0.08);
    border-left-color: var(--primary-turquoise);
}

.entry-content .note-box {
    background: rgba(255, 193, 7, 0.08);
    border-left-color: #ffc107;
}

.entry-content .warning-box {
    background: rgba(220, 53, 69, 0.08);
    border-left-color: #dc3545;
}

.entry-content .success-box {
    background: rgba(40, 167, 69, 0.08);
    border-left-color: #28a745;
}

/* =============================================
   記事フッター(entry-footer)
   ============================================= */
#entry-footer-wrapper,
.entry-footer {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 2px solid var(--border-soft);
}

@media (max-width: 768px) {
    #entry-footer-wrapper,
    .entry-footer {
        margin-top: 40px;
        padding-top: 28px;
    }
}

/* シェアボタン */
.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}

@media (max-width: 768px) {
    .share-buttons {
        gap: 10px;
        margin-bottom: 28px;
    }
}

.share-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    color: white;
}

@media (max-width: 768px) {
    .share-button {
        padding: 9px 18px;
        font-size: 13px;
        border-radius: 6px;
    }
}

.share-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

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

.share-button.line {
    background: #06c755;
}

.share-button.pocket {
    background: #ef4056;
}

.share-button.hatena {
    background: #00a4de;
}

/* 著者情報 */
.author-info {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--bg-soft);
    border-radius: 12px;
    margin-bottom: 32px;
}

@media (max-width: 768px) {
    .author-info {
        flex-direction: column;
        gap: 16px;
        padding: 20px;
        border-radius: 10px;
        margin-bottom: 28px;
    }
}

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

.author-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

@media (max-width: 768px) {
    .author-avatar img {
        width: 64px;
        height: 64px;
    }
}

.author-details {
    flex: 1;
}

.author-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .author-name {
        font-size: 16px;
        margin-bottom: 6px;
    }
}

.author-bio {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-medium);
}

@media (max-width: 768px) {
    .author-bio {
        font-size: 13px;
    }
}

/* 関連記事 */
.related-posts {
    margin-top: 40px;
}

@media (max-width: 768px) {
    .related-posts {
        margin-top: 32px;
    }
}

.related-posts-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-soft);
}

@media (max-width: 768px) {
    .related-posts-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
}

.related-posts-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

@media (max-width: 768px) {
    .related-posts-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.related-post-item {
    background: var(--bg-soft);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

@media (max-width: 768px) {
    .related-post-item {
        border-radius: 10px;
    }
}

.related-post-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.related-post-item a {
    display: block;
    text-decoration: none;
    color: inherit;
}

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

@media (max-width: 768px) {
    .related-post-thumbnail {
        height: 160px;
    }
}

.related-post-content {
    padding: 16px;
}

@media (max-width: 768px) {
    .related-post-content {
        padding: 14px;
    }
}

.related-post-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.5;
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .related-post-title {
        font-size: 15px;
    }
}

.related-post-date {
    font-size: 12px;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .related-post-date {
        font-size: 11px;
    }
}

/* =============================================
   前後の記事ナビゲーション(prev-next-entry)
   ============================================= */
.prev-next-entry {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 40px 0;
}

@media (max-width: 768px) {
    .prev-next-entry {
        grid-template-columns: 1fr;
        gap: 16px;
        margin: 32px 0;
    }
}

.prev-entry,
.next-entry {
    background: var(--bg-soft);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

@media (max-width: 768px) {
    .prev-entry,
    .next-entry {
        border-radius: 10px;
        padding: 16px;
    }
}

.prev-entry:hover,
.next-entry:hover {
    background: var(--primary-turquoise-light);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.prev-entry a,
.next-entry a {
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-decoration: none;
    color: inherit;
}

@media (max-width: 768px) {
    .prev-entry a,
    .next-entry a {
        gap: 8px;
    }
}

.nav-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    .nav-label {
        font-size: 11px;
    }
}

.nav-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .nav-title {
        font-size: 15px;
    }
}

/* =============================================
   コメントセクション
   ============================================= */
#comments {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 2px solid var(--border-soft);
}

@media (max-width: 768px) {
    #comments {
        margin-top: 40px;
        padding-top: 28px;
    }
}

.comments-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 24px;
}

@media (max-width: 768px) {
    .comments-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
}

.comment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comment {
    padding: 20px;
    background: var(--bg-soft);
    border-radius: 12px;
    margin-bottom: 16px;
}

@media (max-width: 768px) {
    .comment {
        padding: 16px;
        border-radius: 10px;
        margin-bottom: 14px;
    }
}

.comment-author {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .comment-author {
        font-size: 15px;
    }
}

.comment-date {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 12px;
}

@media (max-width: 768px) {
    .comment-date {
        font-size: 11px;
        margin-bottom: 10px;
    }
}

.comment-content {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-dark);
}

@media (max-width: 768px) {
    .comment-content {
        font-size: 13px;
    }
}

/* コメントフォーム */
.comment-form {
    margin-top: 32px;
    padding: 24px;
    background: var(--bg-soft);
    border-radius: 12px;
}

@media (max-width: 768px) {
    .comment-form {
        margin-top: 28px;
        padding: 20px;
        border-radius: 10px;
    }
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-soft);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .comment-form input[type="text"],
    .comment-form input[type="email"],
    .comment-form input[type="url"],
    .comment-form textarea {
        padding: 10px 14px;
        font-size: 13px;
        margin-bottom: 14px;
        border-radius: 6px;
    }
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--primary-turquoise);
    box-shadow: 0 0 0 3px var(--primary-turquoise-light);
}

.comment-form textarea {
    min-height: 150px;
    resize: vertical;
}

.comment-form button[type="submit"] {
    padding: 12px 32px;
    background: var(--primary-turquoise);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(25, 191, 191, 0.3);
}

@media (max-width: 768px) {
    .comment-form button[type="submit"] {
        padding: 10px 28px;
        font-size: 14px;
        border-radius: 6px;
    }
}

.comment-form button[type="submit"]:hover {
    background: var(--primary-turquoise-hover);
    box-shadow: 0 6px 12px rgba(25, 191, 191, 0.4);
    transform: translateY(-2px);
}

/* =============================================
   サイドバー
   ============================================= */
.sidebar {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

@media (max-width: 768px) {
    .sidebar {
        border-radius: 12px;
        padding: 20px;
        margin-top: 24px;
    }
}

.sidebar .widget {
    margin-bottom: 32px;
}

@media (max-width: 768px) {
    .sidebar .widget {
        margin-bottom: 28px;
    }
}

.sidebar .widget:last-child {
    margin-bottom: 0;
}

.sidebar .widget-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-soft);
}

@media (max-width: 768px) {
    .sidebar .widget-title {
        font-size: 17px;
        margin-bottom: 14px;
        padding-bottom: 10px;
    }
}

.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar ul li {
    margin-bottom: 12px;
}

@media (max-width: 768px) {
    .sidebar ul li {
        margin-bottom: 10px;
    }
}

.sidebar ul li:last-child {
    margin-bottom: 0;
}

.sidebar ul li a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

@media (max-width: 768px) {
    .sidebar ul li a {
        font-size: 13px;
    }
}

.sidebar ul li a:hover {
    color: var(--primary-turquoise);
}

/* =============================================
   レスポンシブ調整
   ============================================= */
@media (max-width: 1024px) {
    #main {
        padding:0;
    }
}

@media (max-width: 768px) {
    /* モバイルで2カラムを1カラムに */
    .t-2of3,
    .t-1of3 {
        width: 100% !important;
    }
}

/* =============================================
   印刷用スタイル
   ============================================= */
@media print {
    #inner-content {
        max-width: 100%;
        padding: 0;
        background: white;
    }
    
    #main {
        box-shadow: none;
        border-radius: 0;
        padding:0;
    }
    
    .entry-header {
        border-bottom: 1px solid #ddd;
    }
    
    .share-buttons,
    .prev-next-entry,
    #comments,
    .sidebar {
        display: none;
    }
    
    .entry-content a {
        color: #000;
        text-decoration: underline;
    }
}

/* =============================================
   アニメーション
   ============================================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#entry {
    animation: fadeInUp 0.6s ease;
}

/* =============================================
   アクセシビリティ
   ============================================= */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary-turquoise);
    outline-offset: 2px;
}

/* =============================================
   スムーズスクロール
   ============================================= */
html {
    scroll-behavior: smooth;
}

/* =============================================
   目次(TOC)スタイル
   ============================================= */
.toc-container {
    margin: 32px 0;
    padding: 24px;
    background: var(--bg-soft);
    border-radius: 12px;
    border: 2px solid var(--border-soft);
}

@media (max-width: 768px) {
    .toc-container {
        margin: 28px 0;
        padding: 20px;
        border-radius: 10px;
    }
}

.toc-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

@media (max-width: 768px) {
    .toc-title {
        font-size: 17px;
        margin-bottom: 14px;
    }
}

.toc-title::before {
    content: "📑";
    font-size: 20px;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list li {
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .toc-list li {
        margin-bottom: 8px;
    }
}

.toc-list li:last-child {
    margin-bottom: 0;
}

.toc-list a {
    color: var(--primary-turquoise);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

@media (max-width: 768px) {
    .toc-list a {
        font-size: 13px;
    }
}

.toc-list a:hover {
    color: var(--primary-turquoise-hover);
    border-bottom-color: var(--primary-turquoise);
}

/* 子要素の目次 */
.toc-list .toc-sublist {
    margin-left: 20px;
    margin-top: 8px;
}

@media (max-width: 768px) {
    .toc-list .toc-sublist {
        margin-left: 16px;
    }
}

.post, .sidebar .widget {
    border:none!important;
}