/* ============================================
   ブログトップページスタイル
   カスタマイズしやすいようにCSS変数を使用
   ============================================ */

/* NOTICE: レイアウト構造に関わるルール（ページレイアウト、グリッド、サイドバー等）は
   blog/index.html のインラインCritical CSSにも重複定義されている。
   レイアウトルールを変更する場合は、index.html側も合わせて更新すること。 */

:root {
    /* カラー */
    --color-text: #1a1a1a;
    --color-text-muted: #666;
    --color-text-light: #999;
    --color-background: #f9fafb;
    --color-card: #fff;
    --color-border: #e5e5e5;
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;

    /* フォント */
    --font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", sans-serif;
    --font-size-base: 14px;
    --line-height: 1.6;

    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* レイアウト */
    --page-max-width: 1280px;
    --content-max-width: 1024px;
    --sidebar-width: 320px;
    --page-padding: 1rem;

    /* シャドウ */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);

    /* 角丸 */
    --radius-sm: 4px;
    --radius-md: 0;
}

@media (min-width: 768px) {
    :root {
        --page-padding: 1.5rem;
        --radius-md: 9px;
        --font-size-base: 16px;
    }
}

/* ============================================
   リセット
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
}

body {
    margin: 0;
    font-family: var(--font-family);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-background);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

figure {
    margin: 0;
}

/* ============================================
   ページレイアウト
   ============================================ */
.home-page {
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ============================================
   ヘッダー
   ============================================ */
.home-header {
    position: relative;
    flex-shrink: 0;
    z-index: 50;
    background-color: var(--color-card);
    box-shadow: var(--shadow-sm);
}

.home-header-inner {
    position: relative;
    max-width: var(--page-max-width);
    margin: 0 auto;
    padding: 0 var(--page-padding);
    padding: 0 var(--page-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    transition: color 0.2s;
    overflow: hidden;
}

@media (max-width: 1023px) {
    .site-title:has(.site-logo) {
        margin-left: calc(-1 * var(--page-padding));
        margin-right: calc(-1 * var(--page-padding));
    }
}

.site-title:hover {
    color: var(--color-text-muted);
}

.site-logo {
    display: block;
    height: 100%;
    width: auto;
    max-width: none;
    position: relative;
}

/* モバイルメニューボタン */
.mobile-menu-btn {
    position: absolute;
    top: 0.5rem;
    right: var(--page-padding);
    display: block;
    padding: 0.3rem;
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: #fff;
}

.mobile-menu-btn:hover {
    background-color: rgba(0, 0, 0, 0.5);
}

.mobile-menu-btn svg {
    width: 24px;
    height: 24px;
}

@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }
}


/* ============================================
   カテゴリーナビゲーション
   ============================================ */

.category-nav {
    background-color: var(--color-card);
}

.category-nav-inner {
    max-width: var(--page-max-width);
    margin: 0 auto;
    padding: 0;
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    gap: 0;
}

@media (min-width: 768px) {
    .category-nav-inner {
        padding: 0.375rem var(--page-padding);
        gap: var(--spacing-sm);
    }
}

.category-tabs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    width: 100%;
    padding: 2px;
}

@media (min-width: 768px) {
    .category-tabs {
        display: flex;
        flex-wrap: nowrap;
        gap: 0.375rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;  /* Firefox */
        padding: 3px;
        margin: -3px;
        width: auto;
    }
}

.category-tabs::-webkit-scrollbar {
    display: none;  /* Chrome, Safari */
}

/* 管理者リンク（モバイル: ヘッダー左上にオーバーレイ） */
.category-nav .admin-links {
    position: absolute;
    top: 0.5rem;
    left: var(--page-padding);
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0;
    flex-shrink: 0;
    min-width: max-content;
    background-color: #1a1a1a;
    border-radius: var(--radius-sm);
    z-index: 10;
}

/* 管理者リンク（PC: カテゴリーナビ内） */
@media (min-width: 768px) {
    .category-nav .admin-links {
        position: static;
        margin-left: auto;
        margin-right: 12px;
    }
}

.category-nav .admin-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    color: #ccc;
    background-color: transparent;
    white-space: nowrap;
    flex-shrink: 0;
    transition: all 0.2s;
}

.category-nav .admin-link:hover {
    background-color: #333;
    color: #fff;
}

.category-nav .admin-link svg {
    flex-shrink: 0;
}

.category-tab {
    padding: 0.5rem 0.25rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #333;
    background-color: rgba(255, 255, 255, 0.4);
    border: none;
    border-radius: 0;
    transition: all 0.2s;
    white-space: nowrap;
    text-align: center;
}

@media (min-width: 768px) {
    .category-tab {
        flex-shrink: 0;
        padding: 0.3125rem 0.5rem;
        border-radius: var(--radius-md);
        text-align: left;
    }
}

.category-tab:hover {
    background-color: rgba(255, 255, 255, 0.5);
    color: #333;
}

.category-tab.active {
    color: #333;
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.7);
    z-index: 1;
}

/* ============================================
   メインコンテンツエリア
   ============================================ */
.home-main {
    flex: 1;
    overflow-y: auto;
    padding-top: 0;
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    .home-main {
        padding-top: var(--spacing-md);
    }
}

.home-main-inner {
    max-width: var(--page-max-width);
    margin: 0 auto;
    width: 100%;
    padding: 0;
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .home-main-inner {
        padding: 0 var(--page-padding);
    }
}

.home-content {
    flex: 1;
    min-width: 0;
    padding-bottom: var(--spacing-md);
}

.home-layout {
    display: flex;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .home-main {
        scrollbar-gutter: stable;
    }
    .home-header-inner {
        padding-left: calc(var(--page-padding) - 8px);  /* scrollbar-gutter分のズレ補正 */
        padding-right: calc(var(--page-padding) + 8px);
    }
    .home-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr) var(--sidebar-width);
    }
}

/* ============================================
   フィルタ状態表示
   ============================================ */
.filter-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--color-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.filter-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.filter-title {
    font-weight: 600;
    color: var(--color-text);
}

.filter-count {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.filter-clear {
    font-size: 0.875rem;
    color: var(--color-primary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s;
}

.filter-clear:hover {
    background-color: #f3f4f6;
}

/* ============================================
   記事リスト（写真重視グリッド）
   ============================================ */
.article-list {
    display: grid;
    grid-template-columns: repeat(var(--grid-columns-mobile, 1), 1fr);
    gap: 1px;
}

@media (min-width: 768px) {
    .article-list {
        gap: var(--spacing-sm);
        padding: 4px;
        margin: -4px;
    }
}

@media (min-width: 1024px) {
    .article-list {
        grid-template-columns: repeat(var(--grid-columns-pc, 4), 1fr);
    }
}

/* 記事カード共通（写真重視） */
.article-card {
    background-color: var(--color-card);
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    -webkit-mask-image: radial-gradient(white, black);
}

.article-card a {
    display: block;
    position: relative;
}

/* サムネイル */
.article-thumbnail {
    position: relative;
    background-color: #1a1a1a;
    aspect-ratio: 4 / 3;
}

.article-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-thumbnail-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

/* 記事情報（写真の上にオーバーレイ） */
.article-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md) var(--spacing-sm) 0.25rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.7) 40%, rgba(0, 0, 0, 0.15) 70%, rgba(0, 0, 0, 0) 100%);
    color: #fff;
}

.article-title {
    font-weight: 600;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
    margin-top: 0;
    padding-left: 0.25rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.article-excerpt {
    display: none;
}

.article-date {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 0, 0, 0.4);
    padding: 0.0625rem 0.375rem;
    border-radius: 3px;
    margin-left: -0.25rem;
}

/* フィーチャード記事（1件目、フル幅） */
.article-card.featured {
    grid-column: 1 / -1;
}

.article-card.featured .article-thumbnail {
    aspect-ratio: 21 / 9;
}

.article-card.featured .article-date {
    font-size: 0.875rem;
    margin-left: -0.5rem;
    position: relative;
    top: 0.25rem;
}

.article-card.featured .article-info {
    padding: var(--spacing-md) var(--spacing-lg) 0.75rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 100%);
}


.article-card.featured .article-title {
    font-size: 1.5rem;
    -webkit-line-clamp: 2;
    margin-bottom: 0.125rem;
    padding-left: 0;
}

.article-card.featured .article-excerpt {
    display: none;
}

@media (min-width: 768px) {
    .article-card.featured .article-title {
        font-size: 1.75rem;
    }

    .article-card.featured .article-excerpt {
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
        font-size: 0.9375rem;
        color: rgba(255, 255, 255, 0.8);
        line-height: 1.5;
        margin: 0;
        padding: 0 var(--spacing-sm);
    }
}

/* 通常記事 */
.article-card.regular .article-thumbnail {
    aspect-ratio: 4 / 3;
}

.article-card.regular .article-title {
    font-size: 0.75rem;
}

/* カテゴリーラベル */
.category-label {
    position: absolute;
    top: 0;
    left: 0;
    padding: 0.125rem 0.625rem;
    background-color: #1a1a1a;
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 500;
    line-height: 1.4;
}

@media (min-width: 768px) {
    .category-label {
        font-size: 0.8125rem;
        padding: 0.1875rem 0.75rem;
    }
}

/* 記事メタ情報（日付・NEWラベル） */
.article-meta {
    display: flex;
    align-items: baseline;
    gap: 0.375rem;
    margin-bottom: 0;
}

/* NEWラベル */
.new-label {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.125rem 0.5rem;
    background-color: #d4a017;
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.025em;
    line-height: 1.4;
    border-radius: 0;
}

@media (min-width: 768px) {
    .new-label {
        font-size: 0.8125rem;
        padding: 0.1875rem 0.625rem;
    }
}

/* フィルタバー */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    margin-bottom: var(--spacing-xs);
    background-color: var(--color-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    color: var(--color-card-text);
    font-size: 0.875rem;
}

.filter-bar-clear {
    color: var(--color-card-text-muted);
    text-decoration: none;
    font-size: 1.25rem;
    line-height: 1;
    padding: 0 0.25rem;
}

.filter-bar-clear:hover {
    color: var(--color-card-text);
}

/* 記事なし */
.no-articles {
    background-color: var(--color-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-card-text);
}

/* ============================================
   ページネーション
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
    gap: 0.25rem;
    margin-top: var(--spacing-sm);
    padding: 0 var(--spacing-xs);
}

@media (min-width: 768px) {
    .pagination {
        gap: 0.5rem;
        padding: 0;
    }
}

.pagination a,
.pagination span {
    padding: 0.5rem 0.625rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    transition: background-color 0.2s;
}

@media (min-width: 768px) {
    .pagination a,
    .pagination span {
        padding: 0.5rem 1rem;
        font-size: 1rem;
    }
}

.pagination a {
    background-color: rgba(255, 255, 255, 0.25);
    border: 1px solid var(--color-border);
    color: #333;
}

.pagination a:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.pagination a.page-arrow {
    padding: 0.5rem 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination a.page-arrow svg {
    width: 20px;
    height: 20px;
    display: block;
}

.pagination .page-current {
    background-color: rgba(255, 255, 255, 0.7);
    color: #333;
    border: 1px solid #333;
}

.pagination .page-ellipsis {
    color: var(--color-text-light);
    padding: 0.5rem;
}

/* ============================================
   サイドバー（PC）
   ============================================ */
.home-sidebar {
    display: none;
    width: var(--sidebar-width);
    flex-shrink: 0;
    overflow: clip; /* relative位置調整時にフッター領域へのはみ出しを防止 */
}

@media (min-width: 1024px) {
    .home-sidebar {
        display: block;
    }
}

.sidebar-sticky {
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

/* サイドバーセクション */
.sidebar-section {
    background-color: var(--color-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 0 var(--spacing-sm) 0.75rem;
}

.sidebar-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
    margin: 0 0 0.25rem;
    padding-top: 0.5rem;
}

/* プロフィールセクション */
.profile-section {
    padding: 0 var(--spacing-sm) var(--spacing-sm);
}

.profile-name {
    font-size: 0.8125rem;
    font-weight: 600;
    margin: 0;
    text-align: right;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}

.profile-hero {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
}

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

.profile-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.25) 40%, transparent 70%);
    padding: 2.5rem var(--spacing-md) var(--spacing-sm);
}

.sidebar-section .profile-overlay .profile-text {
    font-size: 0.8125rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9) !important;
    line-height: 1.7;
    margin: 0;
    white-space: pre-wrap;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}

/* SNSシェアボタン */
.share-section {
    background: none;
    box-shadow: none;
    padding: 0;
}

.share-buttons {
    display: flex;
    gap: 0.5rem;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    height: 36px;
    border-radius: var(--radius-sm);
    color: #fff;
    transition: opacity 0.2s;
}

.share-btn:hover {
    opacity: 0.8;
}

.share-btn--x {
    background-color: #3a3a3a;
}

.share-btn--facebook {
    background-color: #3d6399;
}

.share-btn--line {
    background-color: #3a8c5c;
}

.share-btn--pinterest {
    background-color: #9e3a4a;
}

/* 検索フォーム */
.search-form {
    display: flex;
}

.search-input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background-color: rgba(255, 255, 255, 0.6) !important;
    border: 1px solid #9ca3af !important;
    border-right: none !important;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    font-size: 0.875rem;
    outline: none;
}

.search-input:focus {
    border-color: var(--color-primary);
}

.search-btn {
    padding: 0.5rem 0.75rem;
    background-color: #4b5563;
    color: #fff;
    border: none;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    cursor: pointer;
    transition: background-color 0.2s;
}

.search-btn:hover {
    background-color: #374151;
}

.search-btn svg {
    width: 16px;
    height: 16px;
}

/* カテゴリーリスト */
.category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.category-link {
    padding: 0.25rem 0.75rem;
    background-color: rgba(255, 255, 255, 0.6) !important;
    border: 1px solid #9ca3af !important;
    border-radius: 9999px;
    font-size: 0.875rem;
    color: #4b5563;
    transition: all 0.2s;
}

.category-link:hover {
    background-color: var(--color-card-border) !important;
    border-color: var(--color-card-border) !important;
}

.category-link.active,
.category-link.article-tag {
    border-color: var(--color-card-text) !important;
    color: var(--color-card-text) !important;
}

/* 固定ページリスト */
.page-list {
    display: flex;
    flex-direction: column;
}

.page-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-card-text) !important;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s;
}

.page-link::before {
    content: '\25B6';
    font-size: 0.5rem;
    color: var(--color-card-text-muted);
    flex-shrink: 0;
    line-height: 1;
}

.page-link:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

/* アーカイブプルダウン */
.archive-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #9ca3af !important;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-text);
    background-color: rgba(255, 255, 255, 0.6) !important;
    cursor: pointer;
    outline: none;
}

.archive-select:focus {
    border-color: var(--color-primary);
}

.archive-select optgroup {
    font-weight: 600;
    color: var(--color-text);
}

.archive-select option {
    font-weight: normal;
    color: #4b5563;
    padding: 0.25rem;
}

/* 管理者セクション */
.admin-section {
    background-color: #1f2937;
    border: none;
}

.admin-section .sidebar-title {
    color: #9ca3af;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-top: 0.75rem;
    margin-bottom: 0.5rem;
}

.admin-links {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.admin-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.625rem;
    font-size: 0.8125rem;
    color: #d1d5db;
    border-radius: var(--radius-sm);
    transition: all 0.15s;
}

.admin-link:hover {
    background-color: #374151;
    color: #f9fafb;
}

.admin-link-primary {
    background-color: #4f46e5;
    color: #ffffff;
}

.admin-link-primary:hover {
    background-color: #4338ca;
    color: #ffffff;
}

.admin-link svg {
    flex-shrink: 0;
    opacity: 0.8;
}

/* ============================================
   モバイルサイドバー
   ============================================ */
.mobile-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 60;
}

.mobile-sidebar-overlay.active {
    display: block;
}

@media (min-width: 1024px) {
    .mobile-sidebar-overlay {
        display: none !important;
    }
}

.mobile-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    height: 100%;
    width: var(--sidebar-width);
    background-color: var(--color-content-bg, #f9fafb);
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.1);
    z-index: 70;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.mobile-sidebar.open {
    transform: translateX(0);
}

@media (min-width: 1024px) {
    .mobile-sidebar {
        display: none !important;
    }
}

.mobile-sidebar-inner {
    padding: var(--spacing-sm);
}

.mobile-sidebar-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.5rem;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text-muted);
}

.mobile-sidebar-close:hover {
    background-color: #f3f4f6;
}

.mobile-sidebar-close svg {
    width: 24px;
    height: 24px;
}

.mobile-sidebar-content {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

/* ============================================
   サイドバー Hall of Fame カルーセル
   ============================================ */

.showcase-sidebar {
    padding-bottom: var(--spacing-sm);
}

.sidebar-carousel {
    position: relative;
}

.sidebar-carousel-track {
    aspect-ratio: 3 / 2;
    overflow: hidden;
}

.sidebar-carousel-inner {
    display: flex;
    transition: transform 0.4s ease;
    height: 100%;
}

.sidebar-carousel-slide {
    flex: 0 0 100%;
    min-width: 0;
}

.sidebar-carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.sidebar-carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding-top: 0.5rem;
}

.sidebar-carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    background-color: #d1d5db;
    cursor: pointer;
    padding: 0;
    transition: background-color 0.2s;
}

.sidebar-carousel-dot:hover {
    background-color: #9ca3af;
}

.sidebar-carousel-dot.active {
    background-color: var(--color-primary);
}

/* カルーセル矢印ボタン */
.sidebar-carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: rgba(255, 255, 255, 0.85);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s, opacity 0.2s;
    opacity: 0;
    color: #374151;
}

.sidebar-carousel:hover .sidebar-carousel-arrow {
    opacity: 1;
}

.sidebar-carousel-arrow:hover {
    background: rgba(255, 255, 255, 1);
}

.sidebar-carousel-prev {
    left: 8px;
}

.sidebar-carousel-next {
    right: 8px;
}

/* タッチデバイスではホバーが効かないため矢印を非表示（スワイプで操作） */
@media (hover: none) {
    .sidebar-carousel-arrow {
        display: none;
    }
}

/* カルーセルリンク（画像クリックで記事に遷移） */
a.sidebar-carousel-slide {
    display: block;
    text-decoration: none;
    cursor: pointer;
}

/* ============================================
   フッター
   ============================================ */
.site-footer {
    position: relative;
    overflow: hidden;
    background-color: #1a1a1a;
    color: rgba(255, 255, 255, 0.85);
    margin-top: auto;
    flex-shrink: 0;
}

.site-footer-bg {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    height: 100%;
    width: auto;
}

.site-footer-inner {
    position: relative;
    max-width: var(--page-max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--page-padding);
    text-align: center;
    font-size: 0.8125rem;
    line-height: 1.8;
}

.site-footer-link {
    color: inherit;
    text-decoration: none;
}

.site-footer-link:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}