/* ===========================================
   アンテナサイト - ホワイト/ライトテーマ
   2chまとめサイト風クリーンデザイン
   =========================================== */

/* ルートコンテナ */
.antena-app {
    display: block !important;
    position: relative !important;
    contain: layout style paint;
    isolation: isolate;
    font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', 'Segoe UI', sans-serif !important;
    font-size: 15px !important;
    line-height: 1.7 !important;
    color: #333 !important;
    background: #f5f5f5 !important;
    box-sizing: border-box !important;
    width: 100% !important;
    min-width: 320px;
    max-width: 100%;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

.antena-app *,
.antena-app *::before,
.antena-app *::after {
    box-sizing: border-box !important;
}

.antena-app h1, .antena-app h2, .antena-app h3,
.antena-app h4, .antena-app h5, .antena-app h6,
.antena-app p, .antena-app ul, .antena-app ol,
.antena-app li, .antena-app figure, .antena-app figcaption,
.antena-app blockquote, .antena-app dl, .antena-app dd {
    margin: 0;
    padding: 0;
}

.antena-app ul, .antena-app ol {
    list-style: none;
}

/* CSS変数 */
.antena-app {
    --primary-color: #d4a24e;
    --primary-dark: #b88644;
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --card-border: #e0e0e0;
    --text-color: #333333;
    --text-muted: #666666;
    --text-dim: #999999;
    --border-color: #e0e0e0;
    --link-color: #0066cc;
    --link-visited: #660099;
    --header-bg: linear-gradient(135deg, #1a1f2e 0%, #0f141f 100%);
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --radius: 8px;
    --radius-sm: 6px;
}

.antena-app a {
    color: var(--link-color);
    text-decoration: none;
}

.antena-app a:hover {
    text-decoration: underline;
}

.antena-app a:visited {
    color: var(--link-visited);
}

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

.antena-app .container {
    max-width: 1100px !important;
    margin: 0 auto !important;
    padding: 0 1rem !important;
    width: 100% !important;
    display: block !important;
}

/* ヘッダー */
.antena-app .site-header {
    background: var(--header-bg);
    border-bottom: 1px solid rgba(0,0,0,0.2);
    padding: 1.5rem 0;
}

.antena-app .header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.antena-app .site-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.antena-app .brand-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #b88644 0%, #d4a24e 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 2px 10px rgba(184, 134, 68, 0.3);
}

.antena-app .site-title {
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
}

.antena-app .site-title a {
    color: #fff;
    text-decoration: none;
}

.antena-app .site-title a:hover {
    color: #d4a24e;
}

.antena-app .site-description {
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-top: 4px;
}

.antena-app .header-nav {
    display: flex;
    gap: 4px;
}

.antena-app .header-nav a {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    border-radius: 6px;
    transition: all 0.2s;
}

.antena-app .header-nav a:hover,
.antena-app .header-nav a.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

/* カテゴリナビ */
.antena-app .category-nav {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
}

.antena-app .category-nav::-webkit-scrollbar {
    display: none;
}

.antena-app .category-list {
    display: flex;
    gap: 6px;
    padding: 0 1rem;
    max-width: 1100px;
    margin: 0 auto;
}

.antena-app .category-item {
    flex-shrink: 0;
}

.antena-app .category-item a {
    display: block;
    padding: 8px 16px;
    background: #f5f5f5;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: #666;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
}

.antena-app .category-item a:hover,
.antena-app .category-item a.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
}

/* メインコンテンツ */
.antena-app .main-content {
    padding: 1.5rem 0;
}

.antena-app .content-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .antena-app .content-wrapper {
        grid-template-columns: 1fr;
    }
}

/* 記事リスト（アンテナサイト風） */
.antena-app .article-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--card-border);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.antena-app .article-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--card-bg);
    transition: background 0.2s;
}

.antena-app .article-item:hover {
    background: #fafafa;
}

.antena-app .article-thumb {
    width: 120px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background: #f0f0f0;
    flex-shrink: 0;
}

.antena-app .article-no-thumb {
    width: 120px;
    height: 80px;
    background: #f0f0f0;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
    font-size: 24px;
    flex-shrink: 0;
}

/* 画像なし表示 */
.antena-app .article-list.no-image .article-thumb,
.antena-app .article-list.no-image .article-no-thumb {
    display: none !important;
}

.antena-app .article-list.no-image .article-title {
    font-size: 16px;
}

.antena-app .article-info {
    flex: 1;
    min-width: 0;
}

.antena-app .article-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-color);
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.antena-app .article-title a {
    color: var(--text-color);
}

.antena-app .article-title a:hover {
    color: var(--link-color);
}

.antena-app .article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-muted);
}

.antena-app .article-site {
    color: var(--primary-color);
    font-weight: 600;
}

.antena-app .article-date {
    color: var(--text-dim);
}

.antena-app .article-category {
    background: var(--primary-color);
    color: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

/* サイドバー */
.antena-app .sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.antena-app .widget {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.antena-app .widget-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.antena-app .ranking-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.antena-app .ranking-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.antena-app .ranking-number {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #b88644 0%, #d4a24e 100%);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #fff;
    font-weight: 700;
    flex-shrink: 0;
}

.antena-app .ranking-content {
    flex: 1;
    min-width: 0;
}

.antena-app .ranking-title {
    font-size: 13px;
    color: var(--text-color);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.antena-app .ranking-title a {
    color: var(--text-color);
}

.antena-app .ranking-site {
    font-size: 11px;
    color: var(--text-dim);
    margin-top: 4px;
}

/* ページネーション */
.antena-app .pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 1.5rem;
}

.antena-app .pagination a,
.antena-app .pagination span {
    padding: 8px 14px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 13px;
    transition: all 0.2s;
}

.antena-app .pagination a:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
}

.antena-app .pagination .current {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

/* フッター */
.antena-app .site-footer {
    background: #fff;
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 2rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 13px;
}

/* フォーム */
.antena-app .admin-form .form-group {
    margin-bottom: 20px;
}

.antena-app .admin-form label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.antena-app .admin-form input,
.antena-app .admin-form textarea,
.antena-app .admin-form select {
    width: 100%;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-color);
    font-family: inherit;
    font-size: 14px;
    transition: all 0.3s;
}

.antena-app .admin-form input:focus,
.antena-app .admin-form textarea:focus,
.antena-app .admin-form select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(212, 162, 78, 0.2);
}

.antena-app .admin-form textarea {
    min-height: 100px;
    resize: vertical;
}

.antena-app .btn {
    display: inline-block;
    padding: 14px 28px;
    background: linear-gradient(135deg, #b88644 0%, #d4a24e 100%);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    text-align: center;
}

.antena-app .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(184, 134, 68, 0.3);
    text-decoration: none;
    color: #fff;
}

.antena-app .btn-secondary {
    background: #f0f0f0;
    color: var(--text-color);
}

.antena-app .btn-secondary:hover {
    background: #e0e0e0;
}

.antena-app .message {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 20px;
}

.antena-app .message.success {
    background: #e8f5e9;
    border: 1px solid #a5d6a7;
    color: #2e7d32;
}

.antena-app .message.error {
    background: #ffebee;
    border: 1px solid #ef9a9a;
    color: #c62828;
}

.antena-app .hint {
    font-size: 12px;
    color: var(--text-dim);
    margin-top: 6px;
}

.antena-app .card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.antena-app .card h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 20px;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .antena-app .header-inner {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .antena-app .site-brand {
        flex-direction: column;
        text-align: center;
    }

    .antena-app .article-item {
        flex-direction: column;
    }

    .antena-app .article-thumb,
    .antena-app .article-no-thumb {
        width: 100%;
        height: 160px;
    }
}