/* themes/lux/style.css */

/*
Theme Name: Lux
Theme URI: https://example.com/themes/lux
Author: Sutr4
Author URI: https://example.com/
Description: シンプルかつモダンなブログ向けテーマ。レスポンシブデザインに対応し、高速な読み込みを実現します。
Version: 1.1.8
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Tags: blog, clean, modern, responsive
*/

/* --- Parallel Official Variables --- */
:root {
  --bg-main:        #0a0a0f;
  --bg-sidebar:     #15151e;
  --bg-panel:       #1a1a24;
  /* 文字色とアクセントを大幅に明るくし、コントラストを強化 */
  --text-main:      #ffffff;
  --text-muted:     #9a9cb5;
  --text-sub:       #d0d2e5;
  /* ボーダーも視認性を確保 */
  --border:         #3a3a50;
  --border-light:   #4a4a65;
  --accent:         #6e7dfc;
  --accent-bright:  #a1adff;
  --accent-glow:    rgba(110,125,252,0.3);
  --accent-gradient: linear-gradient(135deg, #6e7dfc 0%, #b850ff 100%);
}

/* --- Base Reset --- */
* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: 'Noto Sans JP', sans-serif;
  line-height: 1.6;
  height: 100%;
}

body { 
  overflow-x: hidden; 
  padding-top: 72px; 
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

a { color: var(--accent-bright); text-decoration: none; transition: 0.2s; }
a:hover { color: #fff; }

.container {
  width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px;
}

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Header --- */
#site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(10, 10, 15, 0.9); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border); height: 72px; display: flex; align-items: center;
  flex-shrink: 0;
}
.header-container {
  width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; justify-content: space-between; align-items: center;
}
.site-logo { display: flex; align-items: center; gap: 12px; }
.logo-text { font-size: 1.65rem; font-weight: 700; color: var(--text-main); }
.site-nav { display: flex; align-items: center; gap: 36px; }
.site-nav a { color: var(--text-sub); font-size: 1rem; font-weight: 500; }
.site-nav a:hover { color: var(--text-main); }

/* --- Hero Section --- */
.cms-hero { position: relative; padding: 60px 0 40px 0; text-align: center; flex-shrink: 0; }
.hero-bg-glow {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 800px; height: 250px; background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%); z-index: -1;
}

/* --- 2Column Layout --- */
.layout-wrapper { 
  display: flex; 
  gap: 40px; 
  margin-bottom: 100px; 
  align-items: flex-start; 
  flex: 1;
}
.main-content { flex: 1; min-width: 0; }

/* Sidebar Component */
.sidebar-content {
  width: 320px; background: var(--bg-sidebar); border: 1px solid var(--border);
  padding: 30px; border-radius: 12px; position: sticky; top: 112px;
}
.sidebar-widget { margin-bottom: 30px; }
.sidebar-widget-title { font-size: 0.95rem; font-weight: 700; letter-spacing: 0.05em; color: var(--text-main); margin-bottom: 15px; border-left: 3px solid var(--accent); padding-left: 10px; }
.sidebar-widget-body { font-size: 0.9rem; color: var(--text-sub); line-height: 1.7; white-space: pre-wrap; }

/* --- Post Cards --- */
.posts-list-stack { display: flex; flex-direction: column; gap: 20px; }
.post-card {
  background: var(--bg-panel); border: 1px solid var(--border-light); padding: 30px; border-radius: 12px; transition: 0.2s;
}
.post-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.post-card-date { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; }
.post-card-title { font-size: 1.35rem; font-weight: 700; margin-bottom: 10px; }
.post-card-title a { color: var(--text-main); }

/* --- Article Detail Window --- */
.article-window { background: var(--bg-panel); border: 1px solid var(--border-light); padding: 48px; border-radius: 16px; }
.article-header { margin-bottom: 35px; border-bottom: 1px solid var(--border); padding-bottom: 25px; }
.article-title { font-size: 2.25rem; font-weight: 700; line-height: 1.3; }
.article-content { font-size: 1.05rem; color: var(--text-sub); white-space: pre-wrap; line-height: 1.8; }

/* --- Footer --- */
#site-footer { 
  background: #050508; 
  border-top: 1px solid var(--border); 
  padding: 60px 0 40px 0; 
  font-size: 0.9rem; 
  color: var(--text-muted); 
  margin-top: auto;
  flex-shrink: 0;
}

/* フッター配置用レイアウト：左2/3 + 右1/3 */
.footer-widgets {
  display: flex;
  gap: 0;
  margin-bottom: 40px;
  width: 100%;
  align-items: flex-start;
}

/* フッター1: 左2/3をさらに2等分グリッド */
.footer-group-1 {
  flex: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: flex-start;
  padding-right: 40px;
}

/* フッター2: 右1/3 */
.footer-group-2 {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: flex-start;
}

/* 各カラム：左揃え・上揃え */
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
  text-align: left;
}

.footer-widget-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 8px;
}

.footer-widget-body {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.7;
  /* white-space: pre-wrap; */
  overflow-wrap: break-word;
  word-break: break-word;
}

.footer-flex { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  flex-wrap: wrap; 
  gap: 20px; 
  border-top: 1px solid var(--border); 
  padding-top: 40px; 
}

@media (max-width: 768px) {
  .footer-widgets {
    flex-direction: column;
  }
  .footer-group-1 {
    padding-right: 0;
    grid-template-columns: 1fr;
  }
}

/* --- Logo Image Settings --- */
.logo-image {
  height: 40px;
  width: auto;
  object-fit: contain;
  vertical-align: middle;
}

/* ==========================================================================
    カテゴリーフィルターバー（一覧ページ上部）
    ========================================================================== */
.category-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
}
.cat-filter-btn {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-sub);
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    transition: color 0.15s, background 0.15s, border-color 0.15s;
    cursor: pointer;
}
.cat-filter-btn:hover {
    color: var(--text-main);
    border-color: var(--accent);
}
.cat-filter-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ==========================================================================
    投稿カード：アイキャッチ対応
    ========================================================================== */
.post-card {
    display: flex;
    flex-direction: column;
}
.post-card--has-thumb {
    flex-direction: row;
    gap: 0;
    overflow: hidden;
    padding: 0;
}
.post-card--has-thumb .post-card-body {
    padding: 28px 30px;
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.post-card-thumb-link {
    display: block;
    flex-shrink: 0;
    width: 220px;
}
.post-card-thumb {
    width: 220px;
    height: 100%;
    min-height: 160px;
    overflow: hidden;
    background: var(--bg-sidebar);
}
.post-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.35s ease;
}
.post-card--has-thumb:hover .post-card-thumb img {
    transform: scale(1.04);
}

/* アイキャッチなしカード用ボディ */
.post-card-body {
    flex: 1;
}

/* カード内メタ（日付 ＋ カテゴリバッジ） */
.post-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}
.post-card-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.post-card-cat {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent-bright);
    background: rgba(110,125,252,0.15);
    border: 1px solid rgba(110,125,252,0.3);
    transition: background 0.15s, color 0.15s;
}
.post-card-cat:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.post-card-excerpt {
    font-size: 0.9rem;
    color: var(--text-sub);
    margin-top: 6px;
}

/* 記事なしメッセージ */
.posts-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 60px 0;
    background: var(--bg-panel);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

/* ==========================================================================
    サイドバー：カテゴリーウィジェット
    ========================================================================== */
.sidebar-cat-widget { margin-top: 4px; }
.sidebar-cat-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.sidebar-cat-list li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 7px 10px;
    border-radius: 6px;
    font-size: 0.88rem;
    color: var(--text-sub);
    transition: background 0.15s, color 0.15s;
}
.sidebar-cat-list li a:hover,
.sidebar-cat-list li a.active {
    background: rgba(110,125,252,0.15);
    color: var(--text-main);
}
.cat-count {
    font-size: 0.78rem;
    background: var(--bg-main);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 1px 7px;
    color: var(--text-muted);
    min-width: 22px;
    text-align: center;
}

/* ==========================================================================
    詳細ページ：パンくず
    ========================================================================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--text-main); }
.breadcrumb-sep { color: var(--border-light); }

/* ==========================================================================
    詳細ページ：アイキャッチ画像
    ========================================================================== */
.article-eyecatch {
    width: 100%;
    border-radius: 12px 12px 0 0;
    overflow: hidden;
    margin: -48px -48px 0 -48px;
    width: calc(100% + 96px);
    max-height: 420px;
}
.article-eyecatch img {
    width: 100%;
    height: 100%;
    max-height: 420px;
    object-fit: cover;
    display: block;
}

/* ==========================================================================
    詳細ページ：記事ヘッダー内メタ情報
    ========================================================================== */
.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.article-cat-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-bright);
    background: rgba(110,125,252,0.15);
    border: 1px solid rgba(110,125,252,0.3);
    transition: background 0.15s, color 0.15s;
}
.article-cat-badge:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.article-date {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--accent-bright);
}

/* ==========================================================================
    詳細ページ：マークダウン本文スタイリング
    ========================================================================== */
.article-content.markdown-body {
    white-space: normal;
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
    color: var(--text-main);
    font-weight: 700;
    line-height: 1.4;
    margin: 1.8em 0 0.6em;
}
.markdown-body h1 { font-size: 1.8rem; border-bottom: 1px solid var(--border); padding-bottom: 0.4em; }
.markdown-body h2 { font-size: 1.4rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3em; }
.markdown-body h3 { font-size: 1.15rem; }
.markdown-body p { margin: 0.8em 0 1em; color: var(--text-sub); }
.markdown-body a { color: var(--accent-bright); text-decoration: underline; }
.markdown-body a:hover { color: #fff; }
.markdown-body ul,
.markdown-body ol {
    padding-left: 1.6em;
    margin: 0.5em 0 1em;
    color: var(--text-sub);
}
.markdown-body li { margin: 0.3em 0; }
.markdown-body blockquote {
    border-left: 3px solid var(--accent);
    margin: 1.2em 0;
    padding: 0.6em 1.2em;
    background: rgba(110,125,252,0.07);
    border-radius: 0 6px 6px 0;
    color: var(--text-sub);
}
.markdown-body code {
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    padding: 0.15em 0.45em;
    font-size: 0.88em;
    font-family: 'Courier New', monospace;
    color: var(--text-main);
}
.markdown-body pre {
    background: #0d0d14;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
    margin: 1.2em 0;
}
.markdown-body pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.9em;
    color: #e2e4ff;
}
.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2em 0;
}
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.2em 0;
    font-size: 0.92em;
}
.markdown-body th,
.markdown-body td {
    border: 1px solid var(--border-light);
    padding: 8px 14px;
    text-align: left;
    color: var(--text-sub);
}
.markdown-body th {
    background: var(--bg-sidebar);
    color: var(--text-main);
    font-weight: 600;
}
.markdown-body img {
    max-width: 100%;
    border-radius: 6px;
    margin: 0.8em 0;
}

/* ==========================================================================
    レスポンシブ対応
    ========================================================================== */
@media (max-width: 768px) {
    .post-card--has-thumb {
        flex-direction: column;
    }
    .post-card-thumb-link,
    .post-card-thumb {
        width: 100%;
        height: 200px;
    }
    .article-eyecatch {
        margin: -24px -24px 0 -24px;
        width: calc(100% + 48px);
    }
    .article-window { padding: 24px; }
}

/* --- Footer Nav --- */
.footer-nav {
    display: flex;
    gap: 24px;
    align-items: center;
}
.footer-nav a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: 0.2s;
}
.footer-nav a:hover {
    color: var(--text-main);
}

/* ==========================================================================
   ウィジェット：記事表示レイアウト (共通)
   ========================================================================== */
.recent-list { 
    list-style: none; 
    padding: 0; 
    margin: 0; 
}
.recent-list li { 
    margin-bottom: 15px; 
}
.recent-list a { 
    text-decoration: none; 
    color: inherit; 
    display: block; 
}
.recent-list img { 
    display: block; 
    width: 100%; 
    object-fit: cover;
}

/* 1. タイトルのみ */
.recent-list-title-only li { margin-bottom: 10px; }

/* 2. サムネイル小・タイトル横 */
.recent-list-thumb-small-side .item-link { display: flex; align-items: center; gap: 10px; }
.recent-list-thumb-small-side img { width: 60px; height: 60px; border-radius: 4px; flex-shrink: 0; }

/* 3. サムネイルのみ（グリッド） */
.recent-list-thumb-only { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.recent-list-thumb-only img { aspect-ratio: 1/1; border-radius: 4px; }

/* 4. サムネイル大・タイトル下 */
.recent-list-thumb-large-under .item-link { flex-direction: column; }
.recent-list-thumb-large-under img { height: 160px; border-radius: 8px; margin-bottom: 8px; }

/* 5. サムネイル大・タイトルホバー（1列・縦積み） */
.recent-list-thumb-large-hover { 
    display: block; /* グリッドをやめて縦並びにする */
}
.recent-list-thumb-large-hover li { 
    position: relative; 
    overflow: hidden; 
    border-radius: 8px; 
    margin-bottom: 10px; /* 記事間の余白 */
}
.recent-list-thumb-large-hover img { 
    width: 100%; 
    aspect-ratio: 16/9; 
    object-fit: cover;
    display: block;
}
.recent-list-thumb-large-hover .title { 
    position: absolute; 
    bottom: 0; 
    left: 0; 
    width: 100%; 
    background: rgba(0,0,0,0.7); 
    color: #fff; 
    padding: 10px; 
    font-size: 0.85rem; 
    opacity: 0; 
    transition: opacity 0.3s;
}
.recent-list-thumb-large-hover li:hover .title { 
    opacity: 1; 
}

/* 検索フォーム */
.sidebar-search-form { display: flex; width: 100%; }
.sidebar-search-form input[type="text"] {
    width: 100%; padding: 10px 14px;
    background: var(--bg-main);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    color: var(--text-main);
}