/*
Theme Name: SACG Theme
Theme URI: https://example.com/sacg-theme
Author: SACG
Description: MGS Content Suite専用テーマ v3。SEO最適化・広告管理・2chアクセント対応。
Version: 3.0.0
License: GNU General Public License v2 or later
Text Domain: sacg-theme
Requires at least: 6.0
Requires PHP: 7.4
*/

/* ========================================
   CSS変数
======================================== */
:root {
    --color-bg: #0d0d0d;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #252525;
    --color-border: #2a2a2a;
    --color-text: #e0e0e0;
    --color-text-muted: #888;
    --color-text-dim: #666;
    --color-accent: #ff6b6b;
    --color-accent-hover: #ff8e8e;
    --color-accent-glow: rgba(255, 107, 107, 0.15);
    --color-white: #fff;
    --color-2ch-green: #789922;
    --color-2ch-red: #ff6b6b;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-card: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-hover: 0 15px 40px rgba(255, 107, 107, 0.15);
    --transition: 0.2s ease;
}

/* ========================================
   リセット & ベース
======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--color-accent-hover); }

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

/* ========================================
   レイアウト
======================================== */
.site-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.content-area {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
    padding: 30px 0;
}

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

/* ========================================
   ヘッダー
======================================== */
.site-header {
    background: linear-gradient(180deg, #1a1a1a 0%, #111 100%);
    border-bottom: 3px solid var(--color-accent);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 12px;
}

.site-title { font-size: 20px; font-weight: bold; }
.site-title a { color: var(--color-white); display: flex; align-items: center; gap: 8px; }
.site-title a:hover { color: var(--color-accent); }
.site-description { color: var(--color-text-muted); font-size: 11px; }

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* ナビゲーション */
.main-nav ul { list-style: none; display: flex; gap: 20px; flex-wrap: wrap; }

.main-nav a {
    color: #bbb;
    font-size: 13px;
    font-weight: 500;
    padding: 5px 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--color-accent);
    transition: width 0.3s;
}
.main-nav a:hover::after { width: 100%; }

/* 検索フォーム（ヘッダー内） */
.search-form {
    display: flex;
    align-items: stretch;
}

.search-input {
    padding: 8px 14px;
    font-size: 13px;
    border: 1px solid var(--color-border);
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    background: var(--color-bg-tertiary);
    color: var(--color-white);
    width: 160px;
    outline: none;
    transition: border-color var(--transition);
}
.search-input:focus {
    border-color: var(--color-accent);
}

.search-submit {
    padding: 8px 16px;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    cursor: pointer;
    font-weight: bold;
    font-size: 13px;
    transition: background var(--transition);
}
.search-submit:hover { background: var(--color-accent-hover); }

/* ========================================
   ページタイトル（2chアクセント）
======================================== */
.page-title {
    color: var(--color-white);
    font-size: 18px;
    margin-bottom: 25px;
    padding: 10px 15px;
    background: var(--color-bg-secondary);
    border-left: 4px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ========================================
   記事グリッド（トップ/アーカイブ）
======================================== */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.post-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid transparent;
}

.post-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(255,107,107,0.2);
}

.post-card-link { display: block; }

.post-card-thumbnail {
    position: relative;
    padding-top: 56.25%;
    background: var(--color-bg-tertiary);
    overflow: hidden;
}

.post-card-thumbnail img {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}
.post-card:hover .post-card-thumbnail img { transform: scale(1.05); }

.post-card-thumbnail .no-thumb {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-size: 50px;
    opacity: 0.3;
}

.post-card-category {
    position: absolute;
    top: 8px; left: 8px;
    background: rgba(255, 107, 107, 0.9);
    color: var(--color-white);
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: bold;
}

/* 2chアクセント: ランダムラベル */
.card-2ch-label {
    position: absolute;
    bottom: 8px; right: 8px;
    background: rgba(0,0,0,0.8);
    color: var(--color-2ch-green);
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: bold;
    font-family: "MS Gothic", "ＭＳ ゴシック", monospace;
    border: 1px solid var(--color-2ch-green);
}

.post-card-content { padding: 14px; }

.post-card-title {
    font-size: 13px;
    font-weight: bold;
    line-height: 1.5;
    color: var(--color-white);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}

.post-card-meta {
    font-size: 11px;
    color: var(--color-text-dim);
}

/* ========================================
   単一記事ページ
======================================== */
.single-article {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.article-header { padding: 25px 25px 0; }

.article-title {
    color: var(--color-white);
    font-size: 22px;
    line-height: 1.4;
    margin-bottom: 15px;
}

.article-meta {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
    color: var(--color-text-muted);
    font-size: 13px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
}

/* タグ（記事メタ内） */
.article-tags { display: flex; gap: 6px; flex-wrap: wrap; }

.article-tag {
    display: inline-block;
    background: var(--color-bg-tertiary);
    color: var(--color-accent) !important;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 11px;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}
.article-tag:hover {
    background: var(--color-accent);
    color: var(--color-white) !important;
    border-color: var(--color-accent);
}

.article-content { padding: 25px; color: #ddd; }
.article-content p { margin-bottom: 1.5em; }

/* 動画ラッパー */
.sacg-video-wrapper,
.mgss-video-wrap {
    margin: 0 0 20px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #000;
    width: 100%;
}

.sacg-video-wrapper video,
.mgss-video-wrap video {
    display: block;
    width: 100%;
    height: auto;
}

.wp-block-video { margin: 0 0 20px; width: 100%; }
.wp-block-video video { display: block; width: 100%; height: auto; border-radius: var(--radius-md); }
.wp-video { width: 100% !important; }
.wp-video-shortcode { width: 100% !important; height: auto !important; }
.mejs-container { width: 100% !important; }

/* 全視聴リンク */
.sacg-full-link { text-align: center; margin: 20px 0; }

.sacg-full-link a {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-accent), #ff8e53);
    color: var(--color-white) !important;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: bold;
    box-shadow: 0 5px 25px rgba(255, 107, 107, 0.4);
    transition: all 0.3s;
}
.sacg-full-link a:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 35px rgba(255, 107, 107, 0.5);
}

/* 記事ナビゲーション */
.post-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin: 25px 0;
}

.post-nav a {
    display: block;
    background: var(--color-bg-secondary);
    padding: 15px;
    border-radius: var(--radius-md);
    color: #ccc;
    font-size: 13px;
    transition: all var(--transition);
    border: 1px solid var(--color-border);
}
.post-nav a:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-accent);
    border-color: rgba(255,107,107,0.3);
}
.post-nav .next { text-align: right; }

/* 関連記事 */
.related-posts { margin: 25px 0; }

.related-posts h3 {
    color: var(--color-white);
    font-size: 16px;
    margin-bottom: 20px;
    padding: 8px 12px;
    background: var(--color-bg-secondary);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ========================================
   サイドバー
======================================== */
.sidebar .widget {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
}

.sidebar .widget-title {
    color: var(--color-white);
    font-size: 14px;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-accent);
}

.sidebar ul { list-style: none; }
.sidebar li { padding: 8px 0; border-bottom: 1px solid var(--color-border); }
.sidebar li:last-child { border-bottom: none; }
.sidebar a { color: #bbb; font-size: 13px; }
.sidebar a:hover { color: var(--color-accent); }

/* ========================================
   ページネーション
======================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin: 35px 0;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    background: var(--color-bg-secondary);
    color: #ccc;
    border-radius: var(--radius-sm);
    font-size: 13px;
    transition: all var(--transition);
}
.pagination a:hover { background: var(--color-accent); color: var(--color-white); }
.pagination .current { background: var(--color-accent); color: var(--color-white); }

/* ========================================
   フッター
======================================== */
.site-footer {
    background: #111;
    border-top: 1px solid #222;
    padding: 40px 0 20px;
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h4 { color: var(--color-white); font-size: 14px; margin-bottom: 15px; }
.footer-section ul { list-style: none; }
.footer-section li { margin-bottom: 8px; }
.footer-section a { color: var(--color-text-muted); font-size: 13px; }
.footer-section a:hover { color: var(--color-accent); }

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #222;
    color: var(--color-text-dim);
    font-size: 12px;
}
.copyright-notice { margin-top: 10px; font-size: 11px; color: #555; }

/* ========================================
   広告枠
======================================== */
.ad-slot {
    margin: 20px 0;
    text-align: center;
    min-height: 50px;
}

/* 管理者向けプレースホルダー */
.ad-slot-label {
    color: var(--color-text-dim);
    font-size: 10px;
    padding: 4px;
}
.ad-slot-hint {
    color: var(--color-text-muted);
    font-size: 11px;
    padding: 15px;
    background: var(--color-bg-tertiary);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
}

.ad-slot-header { margin: 0 auto; max-width: 1200px; padding: 10px 15px 0; }
.ad-slot-content-top { margin: 15px 0; }
.ad-slot-content-middle { margin: 25px 0; }
.ad-slot-content-bottom { margin: 25px 0 15px; }
.ad-slot-sidebar { margin-bottom: 16px; }
.ad-slot-related-before { margin: 20px 0; }

/* ========================================
   SNSシェアボタン
======================================== */
.share-buttons {
    display: flex;
    gap: 10px;
    margin: 25px 25px;
    flex-wrap: wrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: bold;
    color: var(--color-white);
    transition: opacity var(--transition);
}
.share-btn:hover { opacity: 0.8; color: var(--color-white); }
.share-btn.twitter { background: #1da1f2; }
.share-btn.line { background: #00c300; }
.share-btn.copy { background: #555; cursor: pointer; border: none; }

/* ========================================
   空状態
======================================== */
.empty-state {
    background: var(--color-bg-secondary);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
}
.empty-state-title { color: var(--color-text-muted); font-size: 18px; }

/* ========================================
   固定ページ（免責事項・プライバシー）
======================================== */
.legal-page {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: 40px;
}
.legal-page h1 {
    color: var(--color-white);
    font-size: 24px;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--color-accent);
}
.legal-page h2 { color: var(--color-accent); font-size: 18px; margin: 30px 0 15px; }
.legal-page p { color: #ccc; margin-bottom: 1.2em; line-height: 1.8; }
.legal-page ul { color: #ccc; margin: 15px 0 15px 25px; }
.legal-page li { margin-bottom: 8px; }

/* ========================================
   ダークモード切替
======================================== */
.theme-toggle {
    position: fixed;
    bottom: 80px; right: 20px;
    z-index: 999;
    background: #333;
    border: none;
    border-radius: 50%;
    width: 46px; height: 46px;
    cursor: pointer;
    font-size: 18px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    transition: background 0.3s;
}
.theme-toggle:hover { background: #444; }

/* ライトモード */
body.light-mode { background: #f5f5f5; color: #333; }
body.light-mode .site-header { background: linear-gradient(180deg, #fff 0%, #f8f8f8 100%); }
body.light-mode .site-title a,
body.light-mode .article-title,
body.light-mode .page-title,
body.light-mode .post-card-title { color: #333; }

body.light-mode .post-card,
body.light-mode .single-article,
body.light-mode .sidebar .widget,
body.light-mode .legal-page { background: #fff; border-color: #ddd; }

body.light-mode .article-content,
body.light-mode .sidebar a { color: #555; }
body.light-mode .post-card-thumbnail { background: #eee; }
body.light-mode .site-footer { background: #fff; border-color: #ddd; }
body.light-mode .search-input { background: #f0f0f0; color: #333; border-color: #ddd; }
body.light-mode .page-title { background: #f0f0f0; }
body.light-mode .post-nav a { background: #f8f8f8; border-color: #ddd; }

/* ========================================
   トップに戻るボタン
======================================== */
.back-to-top {
    position: fixed;
    bottom: 20px; right: 20px;
    z-index: 999;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    width: 46px; height: 46px;
    cursor: pointer;
    font-size: 18px;
    box-shadow: 0 2px 10px rgba(255,107,107,0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: #ff8585; transform: translateY(-3px); }

/* ========================================
   Age Verification Modal
======================================== */
.age-modal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.age-modal.hidden { display: none; }

.age-modal-box {
    background: #1e1e1e;
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    border: 2px solid var(--color-accent);
}

.age-modal-aa {
    font-family: "MS Gothic", "ＭＳ ゴシック", monospace;
    font-size: 12px;
    line-height: 1.2;
    white-space: pre;
    color: #ddd;
    margin-bottom: 20px;
    text-align: left;
    display: inline-block;
}

.age-modal-aa .red,
.age-modal-text .red { color: var(--color-accent); }

.age-modal-text { margin-bottom: 25px; line-height: 1.8; color: #ddd; }
.age-modal-warning { color: var(--color-accent); font-weight: bold; margin-bottom: 10px; }

.age-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }

.age-btn {
    padding: 15px 40px;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
    border: none;
}
.age-btn-yes { background: var(--color-accent); color: var(--color-white); }
.age-btn-yes:hover { background: var(--color-accent-hover); transform: translateY(-2px); }
.age-btn-no { background: #333; color: #ddd; }
.age-btn-no:hover { background: #444; }

/* Rejection Screen */
.age-rejected {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: #000;
    z-index: 10001;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.age-rejected.show { display: flex; }
.age-rejected-content { text-align: center; color: var(--color-white); }

.age-rejected-aa {
    font-family: "MS Gothic", "ＭＳ ゴシック", monospace;
    font-size: 12px; line-height: 1.2; white-space: pre;
    margin-bottom: 20px; display: inline-block; text-align: left;
}
.age-rejected-aa .red,
.age-rejected-text .red { color: var(--color-accent); }
.age-rejected-text { font-size: 1.2rem; margin-bottom: 20px; }
.age-rejected-countdown { font-size: 2rem; color: var(--color-accent); }

/* ========================================
   Cookie Consent
======================================== */
.cookie-consent {
    position: fixed;
    bottom: 0; left: 0;
    width: 100%;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 15px 20px;
    z-index: 9999;
    transform: translateY(100%);
    transition: 0.3s;
}
.cookie-consent.show { transform: translateY(0); }
.cookie-consent.hidden { display: none; }

.cookie-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.cookie-text { flex: 1; font-size: 0.85rem; color: var(--color-text-muted); }
.cookie-text a { color: var(--color-accent); }

.cookie-btn {
    padding: 8px 22px;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}
.cookie-btn:hover { background: var(--color-accent-hover); }

/* ========================================
   Product Gallery
======================================== */
.product-gallery {
    margin: 25px 0;
    padding: 20px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.product-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.product-gallery-item {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius-sm);
    display: block;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.product-gallery-item:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.product-gallery-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
}

/* ========================================
   MGSS Lightbox/Gallery（プラグイン側）
======================================== */
.mgss-gallery { margin: 20px 0; }

/* ========================================
   レスポンシブ
======================================== */
@media (max-width: 768px) {
    .header-inner { flex-direction: column; text-align: center; }
    .header-right { flex-direction: column; gap: 10px; }
    .main-nav ul { justify-content: center; }
    
    .post-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .post-card-content { padding: 10px; }
    .post-card-title { font-size: 12px; }
    
    .article-header,
    .article-content { padding: 18px; }
    .article-title { font-size: 18px; }
    
    .post-nav { grid-template-columns: 1fr; }
    .legal-page { padding: 25px; }
    .cookie-inner { flex-direction: column; text-align: center; }
    .share-buttons { margin: 20px 18px; }
    
    .product-gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .product-gallery { padding: 15px; margin: 20px 0; }
    
    .search-input { width: 140px; }
    
    .age-modal-box { padding: 25px 20px; }
    .age-modal-aa,
    .age-rejected-aa { font-size: 9px; }
    .age-buttons { flex-direction: column; }
    .age-btn { width: 100%; }
}

@media (max-width: 480px) {
    .post-grid { grid-template-columns: 1fr; }
    .age-modal-aa,
    .age-rejected-aa { font-size: 7px; }
    
    .wp-block-video video,
    .sacg-video-wrapper video,
    .wp-video-shortcode { border-radius: 0; }
    
    .sacg-full-link a { padding: 12px 25px; font-size: 14px; }
    .share-buttons { flex-direction: column; }
    .share-btn { width: 100%; justify-content: center; }
    .article-content { padding: 15px; }
    body { font-size: 15px; }
    .search-input { width: 120px; font-size: 12px; }
}