/**
 * SEOコンテンツページ用スタイル
 */

/* ========================================
   メインコンテンツ
   ======================================== */
.content-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* ========================================
   パンくずリスト
   ======================================== */
.breadcrumb {
    margin-bottom: 1.5rem;
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-light);
}

.breadcrumb li {
    display: flex;
    align-items: center;
}

.breadcrumb li:not(:last-child)::after {
    content: '>';
    margin: 0 0.5rem;
    color: var(--border);
}

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

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ========================================
   ページヘッダー
   ======================================== */
.page-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border);
}

.page-header h1 {
    font-family: 'Shippori Mincho', serif;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.result-count {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ========================================
   記念日詳細ページ
   ======================================== */
.anniversary-detail {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 12px var(--shadow);
    margin-bottom: 2rem;
}

.anniversary-header {
    text-align: center;
    margin-bottom: 2rem;
}

.anniversary-date {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.date-month {
    font-size: 0.9rem;
}

.date-day {
    font-size: 1.2rem;
    font-weight: 700;
}

.anniversary-detail h1 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.8rem;
    color: var(--text);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.category-badge {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

.anniversary-body {
    margin-bottom: 2rem;
}

.description {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--text);
}

/* 説明文内のコンテンツスタイル */
.description h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary);
    margin: 2.5rem 0 1rem 0;
    padding-bottom: 0.6rem;
    border-bottom: 3px solid var(--primary-light);
    position: relative;
}

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

.description h2::before {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 80px;
    height: 3px;
    background: var(--primary);
}

.description h3 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
    margin: 2rem 0 0.8rem 0;
    padding-left: 1rem;
    border-left: 4px solid var(--secondary);
}

.description h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    margin: 1.5rem 0 0.6rem 0;
}

.description p {
    margin: 0 0 1.2rem 0;
    text-align: justify;
}

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

.description ul,
.description ol {
    margin: 1.2rem 0;
    padding-left: 0;
    list-style: none;
}

.description ul li {
    position: relative;
    padding: 0.6rem 0 0.6rem 2rem;
    border-bottom: 1px dashed var(--border);
}

.description ul li:last-child {
    border-bottom: none;
}

.description ul li::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 1.1rem;
    width: 8px;
    height: 8px;
    background: var(--secondary);
    border-radius: 50%;
}

.description ol {
    counter-reset: item;
}

.description ol li {
    position: relative;
    padding: 0.6rem 0 0.6rem 2.5rem;
    border-bottom: 1px dashed var(--border);
    counter-increment: item;
}

.description ol li:last-child {
    border-bottom: none;
}

.description ol li::before {
    content: counter(item);
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 1.8rem;
    height: 1.8rem;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.description strong {
    color: var(--primary);
    font-weight: 600;
}

.description em {
    font-style: normal;
    background: linear-gradient(transparent 60%, rgba(255, 193, 7, 0.3) 60%);
    padding: 0 0.2rem;
}

.description a {
    color: var(--secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--secondary);
    transition: opacity 0.2s;
}

.description a:hover {
    opacity: 0.7;
}

/* 説明文内のブロック引用風スタイル（将来用） */
.description blockquote {
    margin: 1.5rem 0;
    padding: 1.2rem 1.5rem;
    background: var(--bg);
    border-left: 4px solid var(--primary);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--text-light);
}

/* レスポンシブ */
@media (max-width: 768px) {
    .description h2 {
        font-size: 1.25rem;
        margin: 2rem 0 0.8rem 0;
    }

    .description h2::before {
        width: 60px;
    }

    .description h3 {
        font-size: 1.1rem;
        margin: 1.5rem 0 0.6rem 0;
    }

    .description ul li,
    .description ol li {
        padding-left: 1.8rem;
    }
}

/* ========================================
   日付ナビゲーション
   ======================================== */
.date-nav, .month-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 1px 4px var(--shadow);
}

/* シンプルな月ナビゲーション */
.month-nav-simple {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 1px 4px var(--shadow);
}

.nav-btn {
    color: var(--secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background 0.2s;
}

.nav-btn:hover {
    background: var(--bg);
}

.current-month {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
}

.month-selector-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 1px 4px var(--shadow);
}

.month-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 0.5rem;
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.2s, color 0.2s;
}

.month-btn:hover {
    background: var(--primary-light);
    color: white;
}

.month-btn.active {
    background: var(--primary);
    color: white;
}

.nav-link {
    color: var(--secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-link:hover {
    background: var(--bg);
}

.nav-link.month {
    font-weight: 500;
}

.nav-link.prev,
.nav-link.next {
    min-width: 80px;
}

.month-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    justify-content: center;
    flex: 1;
    max-width: 500px;
}

/* ========================================
   月リンク
   ======================================== */
.month-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.month-link {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    text-decoration: none;
    font-size: 0.85rem;
    transition: background 0.2s, color 0.2s;
}

.month-link:hover {
    background: var(--primary-light);
    color: white;
}

.month-link.active {
    background: var(--primary);
    color: white;
}

.month-links-large {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.month-link-large {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    text-decoration: none;
    transition: background 0.2s, transform 0.2s;
}

.month-link-large:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-2px);
}

.month-link-large.active {
    background: var(--primary);
    color: white;
}

.month-link-large:hover .month-num,
.month-link-large:hover .month-label,
.month-link-large.active .month-num,
.month-link-large.active .month-label {
    color: white;
}

.month-num {
    font-size: 1.5rem;
    font-weight: 700;
}

.month-label {
    font-size: 0.8rem;
}

/* ========================================
   日付ナビゲーション（月別ページ用）
   ======================================== */
.day-nav {
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 1px 4px var(--shadow);
}

.day-nav-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.day-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.day-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: var(--bg);
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.85rem;
    transition: background 0.2s, color 0.2s;
}

.day-link:hover {
    background: var(--primary-light);
    color: white;
}

.day-link.has-data {
    background: var(--secondary);
    color: white;
}

/* ========================================
   記念日一覧（カード形式）
   ======================================== */
.anniversary-list {
    display: grid;
    gap: 1rem;
}

.anniversary-card {
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 2px 8px var(--shadow);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

.anniversary-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--shadow);
}

.anniversary-card a {
    display: block;
    padding: 1.25rem;
    text-decoration: none;
    color: var(--text);
}

.anniversary-card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.anniversary-card .category-badge {
    margin-bottom: 0.5rem;
}

.card-description {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-top: 0.5rem;
}

/* ========================================
   月別一覧（日付ごとグループ）
   ======================================== */
.month-anniversary-list {
    display: grid;
    gap: 1.5rem;
}

.day-section {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.25rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.day-heading {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--primary-light);
}

.day-heading a {
    color: var(--primary);
    text-decoration: none;
}

.day-heading a:hover {
    text-decoration: underline;
}

.day-heading .count {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: normal;
}

.day-anniversaries {
    display: grid;
    gap: 0.5rem;
}

.anniversary-item {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}

.anniversary-item:last-child {
    border-bottom: none;
}

.anniversary-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text);
}

.anniversary-item a:hover .item-title {
    color: var(--primary);
}

.item-title {
    flex: 1;
    transition: color 0.2s;
}

.category-tag {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    background: var(--bg);
    color: var(--text-light);
    border-radius: 4px;
}

/* ========================================
   関連セクション
   ======================================== */
.related-section {
    margin-top: 2rem;
}

.related-block {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.related-block h2 {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

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

.related-list li {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
}

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

.related-list a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text);
    text-decoration: none;
}

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

.related-date {
    font-size: 0.85rem;
    color: var(--text-light);
    min-width: 40px;
}

.view-all-link {
    display: block;
    margin-top: 1rem;
    color: var(--secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

.view-all-link:hover {
    text-decoration: underline;
}

/* ========================================
   空状態
   ======================================== */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
    background: var(--card-bg);
    border-radius: 10px;
}

/* ========================================
   TODAYバッジ
   ======================================== */
.today-badge {
    display: inline-block;
    background: linear-gradient(135deg, #ff6b6b, #ee5a5a);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ========================================
   日付情報セクション
   ======================================== */
.date-info-section {
    margin-bottom: 2rem;
}

.date-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.date-info-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1rem;
    text-align: center;
    box-shadow: 0 2px 8px var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.date-info-card .info-icon {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

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

.date-info-card .info-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
}

.date-info-card .info-sub {
    font-size: 0.7rem;
    color: var(--text-light);
}

/* ========================================
   月情報セクション
   ======================================== */
.month-info-section {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.month-info-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

.month-description {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text);
    margin-bottom: 1.5rem;
}

.month-events h3 {
    font-size: 0.9rem;
    color: var(--text);
    margin-bottom: 0.75rem;
}

.event-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.event-list li {
    background: var(--bg);
    color: var(--text);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
}

.month-link-more {
    margin-top: 1.5rem;
    text-align: right;
}

.month-link-more a {
    color: var(--secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

.month-link-more a:hover {
    text-decoration: underline;
}

/* ========================================
   レスポンシブ
   ======================================== */
@media (max-width: 768px) {
    .content-page {
        padding: 1rem;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .anniversary-detail {
        padding: 1.5rem;
    }

    .anniversary-detail h1 {
        font-size: 1.4rem;
    }

    .date-nav, .month-nav {
        flex-direction: column;
        text-align: center;
    }

    .month-selector {
        order: -1;
        margin-bottom: 0.5rem;
    }

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

    .month-links-large {
        grid-template-columns: repeat(3, 1fr);
    }

    .day-link {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }

    /* 日付情報グリッド */
    .date-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .date-info-card {
        padding: 0.75rem;
    }

    .date-info-card .info-icon {
        font-size: 1.25rem;
    }

    .date-info-card .info-value {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .month-links-large {
        grid-template-columns: repeat(2, 1fr);
    }

    .breadcrumb {
        font-size: 0.8rem;
    }
}

/* ========================================
   月情報カード（月別ページ用）
   ======================================== */
.month-info-card {
    background: linear-gradient(135deg, var(--card-bg) 0%, #f8f9fa 100%);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 12px var(--shadow);
    border: 1px solid var(--border);
}

.month-info-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.month-info-header .season-icon {
    font-size: 2.5rem;
}

.month-names {
    flex: 1;
}

.month-names .modern-name {
    display: block;
    font-family: 'Shippori Mincho', serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary);
}

.month-names .old-name {
    display: block;
    font-size: 0.95rem;
    color: var(--text-light);
    margin-top: 0.2rem;
}

.season-badge {
    background: var(--primary);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.month-info-card .month-description {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text);
    margin-bottom: 1rem;
}

.month-events {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.month-events .events-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-right: 0.25rem;
}

.month-events .event-tag {
    background: var(--bg);
    color: var(--text);
    padding: 0.35rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid var(--border);
}

/* ========================================
   月別統計セクション
   ======================================== */
.month-stats-section {
    margin-bottom: 1.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1rem;
    box-shadow: 0 2px 8px var(--shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.stat-card .stat-icon {
    font-size: 1.5rem;
}

.stat-card .stat-content {
    display: flex;
    flex-direction: column;
}

.stat-card .stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
}

.stat-card .stat-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
}

/* ========================================
   記念日が多い日ランキング
   ======================================== */
.day-ranking {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.day-ranking h3 {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

.ranking-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.2s, box-shadow 0.2s;
}

.ranking-item:hover {
    transform: translateX(4px);
    box-shadow: 0 2px 8px var(--shadow);
}

.rank-number {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
}

.ranking-item:nth-child(1) .rank-number {
    background: linear-gradient(135deg, #ffd700, #ffb700);
    color: #8b6914;
}

.ranking-item:nth-child(2) .rank-number {
    background: linear-gradient(135deg, #c0c0c0, #a8a8a8);
    color: #5a5a5a;
}

.ranking-item:nth-child(3) .rank-number {
    background: linear-gradient(135deg, #cd7f32, #b8722c);
    color: white;
}

.rank-date {
    font-weight: 500;
    min-width: 80px;
}

.rank-count {
    background: var(--secondary);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.rank-example {
    flex: 1;
    font-size: 0.85rem;
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ========================================
   カテゴリ別統計
   ======================================== */
.category-stats {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.25rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.category-stats h3 {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

.category-bars {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.category-bar-item {
    display: grid;
    grid-template-columns: 100px 1fr 50px;
    align-items: center;
    gap: 0.75rem;
}

.category-bar-item .category-name {
    font-size: 0.85rem;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.category-bar {
    height: 20px;
    background: var(--bg);
    border-radius: 10px;
    overflow: hidden;
}

.category-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    transition: width 0.3s ease;
}

.category-bar-item .category-count {
    font-size: 0.85rem;
    color: var(--text-light);
    text-align: right;
}

/* ========================================
   月別ページ レスポンシブ
   ======================================== */
@media (max-width: 768px) {
    .month-info-card {
        padding: 1.25rem;
    }

    .month-info-header {
        flex-wrap: wrap;
    }

    .month-info-header .season-icon {
        font-size: 2rem;
    }

    .month-names .modern-name {
        font-size: 1.25rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-card {
        padding: 0.75rem;
    }

    .stat-card .stat-icon {
        font-size: 1.25rem;
    }

    .stat-card .stat-value {
        font-size: 1rem;
    }

    .ranking-item {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .rank-example {
        flex-basis: 100%;
        padding-left: calc(28px + 0.75rem);
        margin-top: -0.25rem;
    }

    .category-bar-item {
        grid-template-columns: 80px 1fr 45px;
        gap: 0.5rem;
    }

    .category-bar-item .category-name {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .month-info-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .season-badge {
        align-self: flex-start;
    }

    .category-bar-item {
        grid-template-columns: 1fr 40px;
    }

    .category-bar-item .category-name {
        grid-column: 1 / -1;
        margin-bottom: -0.25rem;
    }
}

/* ========================================
   誕生花・誕生石セクション
   ======================================== */
.birth-info-section {
    margin-bottom: 2rem;
}

.birth-info-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

.birth-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.birth-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 12px var(--shadow);
    text-align: center;
    transition: transform 0.2s;
}

.birth-card:hover {
    transform: translateY(-2px);
}

.birth-card .birth-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.birth-card h3 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.birth-card .birth-name {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.birth-card .birth-meaning {
    font-size: 0.9rem;
    color: var(--text);
    line-height: 1.6;
}

.flower-card {
    border-top: 4px solid #ff9cba;
}

.stone-card {
    border-top: 4px solid #9c88ff;
}

/* ========================================
   六曜セクション
   ======================================== */
.rokuyo-section {
    margin-bottom: 2rem;
}

.rokuyo-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

.rokuyo-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 12px var(--shadow);
    border-left: 5px solid #FF6B6B;
}

.rokuyo-header {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.rokuyo-name {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.rokuyo-reading {
    font-size: 0.9rem;
    color: var(--text-light);
}

.rokuyo-meaning {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.rokuyo-description {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.rokuyo-good-for {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.rokuyo-good-for .label {
    font-size: 0.85rem;
    color: var(--text-light);
}

.rokuyo-good-for .tag {
    background: var(--bg);
    color: var(--text);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid var(--border);
}

/* ========================================
   有名人誕生日セクション
   ======================================== */
.famous-birthdays-section {
    margin-bottom: 2rem;
}

.famous-birthdays-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

.section-count {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.famous-list {
    display: grid;
    gap: 0.75rem;
}

.famous-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    box-shadow: 0 2px 8px var(--shadow);
    transition: transform 0.2s;
}

.famous-card:hover {
    transform: translateX(4px);
}

.famous-info {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.famous-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}

.famous-year {
    font-size: 0.8rem;
    color: var(--text-light);
    background: var(--bg);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.famous-profession {
    font-size: 0.8rem;
    color: white;
    background: var(--secondary);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
}

.famous-description {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
    margin: 0;
}

/* ========================================
   歴史的出来事セクション
   ======================================== */
.historical-events-section {
    margin-bottom: 2rem;
}

.historical-events-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

.events-timeline {
    display: grid;
    gap: 0.75rem;
}

.event-card {
    display: flex;
    gap: 1rem;
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    box-shadow: 0 2px 8px var(--shadow);
    transition: transform 0.2s;
}

.event-card:hover {
    transform: translateX(4px);
}

.event-year {
    flex-shrink: 0;
    font-family: 'Shippori Mincho', serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    min-width: 60px;
    padding-top: 0.1rem;
}

.event-content {
    flex: 1;
}

.event-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 0.3rem 0;
}

.event-category {
    display: inline-block;
    font-size: 0.75rem;
    color: white;
    background: var(--text-light);
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    margin-bottom: 0.3rem;
}

.event-description {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
    margin: 0.3rem 0 0 0;
}

/* ========================================
   新セクション レスポンシブ
   ======================================== */
@media (max-width: 768px) {
    .birth-info-grid {
        gap: 0.5rem;
    }

    .birth-card {
        padding: 0.75rem;
    }

    .birth-card .birth-icon {
        font-size: 1.5rem;
        margin-bottom: 0.25rem;
    }

    .birth-card h3 {
        font-size: 0.75rem;
        margin-bottom: 0.25rem;
    }

    .birth-card .birth-name {
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }

    .birth-card .birth-meaning {
        font-size: 0.75rem;
        line-height: 1.4;
    }

    .rokuyo-card {
        padding: 1.25rem;
    }

    .rokuyo-name {
        font-size: 1.3rem;
    }

    .famous-card,
    .event-card {
        padding: 0.85rem 1rem;
    }

    .event-card {
        flex-direction: column;
        gap: 0.5rem;
    }

    .event-year {
        font-size: 0.9rem;
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .famous-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .rokuyo-header {
        flex-direction: column;
        gap: 0.25rem;
    }
}

/* ========================================
   広告枠
   ======================================== */
.ad-container {
    margin: 2rem 0;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 2px 8px var(--shadow);
    text-align: center;
    min-height: 100px;
}

.ad-container .ad-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ad-container .ad-placeholder {
    display: none; /* 広告コードが入るまで非表示 */
    background: var(--bg);
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 2rem;
    color: var(--text-light);
    font-size: 0.85rem;
}

/* 広告がアクティブな場合（AdSenseコード挿入後に使用） */
.ad-container.ad-active .ad-placeholder {
    display: none;
}

/* レスポンシブ広告 */
@media (max-width: 768px) {
    .ad-container {
        margin: 1.5rem 0;
        padding: 0.75rem;
    }
}

/* ========================================
   シェアボタン
   ======================================== */
.share-section {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 12px;
    text-align: center;
}

.share-section-title {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

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

.share-btn-x {
    background: #000000;
    color: white;
}

.share-btn-x:hover {
    background: #333333;
}

.share-btn-facebook {
    background: #1877F2;
    color: white;
}

.share-btn-facebook:hover {
    background: #0d65d9;
}

.share-btn-line {
    background: #06C755;
    color: white;
}

.share-btn-line:hover {
    background: #05b04c;
}

.share-btn-copy {
    background: var(--secondary);
    color: white;
}

.share-btn-copy:hover {
    background: #3d5d8a;
}

.share-btn-copy.copied {
    background: var(--success);
}

.share-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

@media (max-width: 480px) {
    .share-buttons {
        gap: 0.5rem;
    }

    .share-btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }

    .share-btn span {
        display: none;
    }

    .share-btn svg {
        width: 20px;
        height: 20px;
    }
}

/* ========================================
   月別ページ - 詳細コンテンツセクション
   ======================================== */

/* 旧暦名の由来セクション */
.month-origin-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 12px var(--shadow);
    border-left: 4px solid var(--secondary);
}

.month-origin-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.15rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.month-origin-section .origin-text {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text);
    margin: 0;
}

/* 詳細な月の説明セクション */
.month-detailed-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 12px var(--shadow);
}

.month-detailed-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-light);
}

.month-detailed-section .detailed-description {
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--text);
}

.month-detailed-section .detailed-description p {
    margin: 0 0 1.2rem 0;
    text-align: justify;
}

.month-detailed-section .detailed-description p:last-child {
    margin-bottom: 0;
}

/* 月の豆知識セクション */
.month-trivia-section {
    background: linear-gradient(135deg, #fff9e6 0%, #fff5d6 100%);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 12px var(--shadow);
    border: 1px solid #f0e6c8;
}

.month-trivia-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.15rem;
    color: #8b6914;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.month-trivia-section h2::before {
    content: '💡';
    font-size: 1.2rem;
}

.month-trivia-section .trivia-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.month-trivia-section .trivia-list li {
    position: relative;
    padding: 0.75rem 0 0.75rem 1.75rem;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text);
    border-bottom: 1px dashed #e0d4b0;
}

.month-trivia-section .trivia-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.month-trivia-section .trivia-list li::before {
    content: '•';
    position: absolute;
    left: 0.5rem;
    color: #c9a227;
    font-weight: bold;
    font-size: 1.2rem;
}

/* おすすめの過ごし方セクション */
.month-recommendations-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 12px var(--shadow);
}

.month-recommendations-section h2 {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.15rem;
    color: var(--primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.month-recommendations-section h2::before {
    content: '✨';
    font-size: 1.1rem;
}

.recommendations-grid {
    display: grid;
    gap: 0.75rem;
}

.recommendation-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    background: var(--bg);
    border-radius: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.recommendation-item:hover {
    transform: translateX(4px);
    box-shadow: 0 2px 8px var(--shadow);
}

.recommendation-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.9rem;
}

.recommendation-text {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.5;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .month-origin-section,
    .month-detailed-section,
    .month-trivia-section,
    .month-recommendations-section {
        padding: 1.25rem;
    }

    .month-origin-section h2,
    .month-detailed-section h2,
    .month-trivia-section h2,
    .month-recommendations-section h2 {
        font-size: 1.1rem;
    }

    .month-detailed-section .detailed-description {
        font-size: 0.9rem;
        line-height: 1.8;
    }

    .month-trivia-section .trivia-list li {
        font-size: 0.9rem;
        padding-left: 1.5rem;
    }

    .recommendation-item {
        padding: 0.75rem;
    }

    .recommendation-number {
        width: 28px;
        height: 28px;
        font-size: 0.85rem;
    }

    .recommendation-text {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .month-origin-section,
    .month-detailed-section,
    .month-trivia-section,
    .month-recommendations-section {
        padding: 1rem;
        margin-bottom: 1rem;
    }
}