/* ───────────────────────────────────────────────
   九天占術 /articles/* 共通スタイル
   全 100 本記事で再利用するため、ここを編集すれば全記事に反映
─────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0f0e1a;
  --bg2:       #161427;
  --bg3:       #1e1b30;
  --gold:      #d4af37;
  --gold-lt:   #f0d060;
  --text:      #e8e4d8;
  --text-dim:  #9990b8;
  --border:    rgba(212,175,55,0.25);
  --border-lt: rgba(212,175,55,0.15);
  --card-bg:   rgba(30,27,48,0.85);
  --accent-bg: rgba(212,175,55,0.06);
}

body {
  font-family: 'Noto Serif JP', serif;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 2.0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(107,33,168,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(107,33,168,0.10) 0%, transparent 50%);
}

.article-container {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 24px 64px;
}

/* ── パンくず ─────────────────────────────────── */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-lt);
}
.breadcrumb a {
  color: var(--gold-lt);
  text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 8px; opacity: 0.5; }
.breadcrumb .current { color: var(--text); }

/* ── 記事ヘッダ ────────────────────────────────── */
.article-header { margin-bottom: 32px; }
.article-meta-top {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.article-meta-top .tag {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--gold);
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--accent-bg);
  letter-spacing: 0.05em;
}
.article-header h1 {
  font-family: 'Shippori Mincho B1', serif;
  font-size: 1.7rem;
  color: var(--gold-lt);
  letter-spacing: 0.02em;
  line-height: 1.5;
  margin-bottom: 16px;
  font-weight: 700;
}
.article-meta-bottom {
  color: var(--text-dim);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
}
.article-meta-bottom .sep { margin: 0 8px; opacity: 0.5; }
.article-meta-bottom a.author-link {
  color: var(--gold-lt);
  text-decoration: none;
  border-bottom: 1px dotted rgba(212,175,55,0.4);
}
.article-meta-bottom a.author-link:hover { color: var(--gold); border-bottom-color: var(--gold); }

/* ── AI disclosure (記事末) ──────────────────────── */
.ai-disclosure {
  margin: 32px 0 16px;
  padding: 18px 22px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-lt);
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.85;
}
.ai-disclosure h2 {
  font-family: 'Shippori Mincho B1', serif;
  font-size: 0.95rem;
  color: var(--gold);
  margin: 0 0 8px;
  padding: 0;
  border: none;
  letter-spacing: 0.04em;
}
.ai-disclosure p { margin: 0; }
.ai-disclosure a {
  color: var(--gold-lt);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.ai-disclosure a:hover { color: var(--gold); }

/* ── 記事ヒーロー画像 ─────────────────────────── */
.article-hero {
  margin: 0 0 28px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-lt);
  background: var(--bg2);
  aspect-ratio: 1 / 1;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.article-hero img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (max-width: 600px) {
  .article-hero { max-width: 100%; margin-bottom: 22px; }
}

/* ── 目次 ──────────────────────────────────────── */
.toc {
  background: var(--accent-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 24px;
  margin: 28px 0 32px;
}
.toc h2 {
  font-family: 'Shippori Mincho B1', serif;
  color: var(--gold);
  font-size: 1rem;
  margin-bottom: 10px;
  padding: 0;
  border: none;
  letter-spacing: 0.05em;
}
.toc ol {
  padding-left: 1.4em;
  margin: 0;
}
.toc li {
  margin-bottom: 6px;
  font-size: 0.92rem;
  color: var(--text);
}
.toc a {
  color: var(--gold-lt);
  text-decoration: none;
}
.toc a:hover { text-decoration: underline; }

/* ── 本文 ──────────────────────────────────────── */
.article-body {
  font-size: 1rem;
  color: var(--text);
}
.article-body .lede {
  font-size: 1.05rem;
  color: var(--text);
  background: var(--accent-bg);
  border-left: 3px solid var(--gold);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-weight: 600;
}
.article-body p {
  margin-bottom: 18px;
}
.article-body h2 {
  font-family: 'Shippori Mincho B1', serif;
  color: var(--gold-lt);
  font-size: 1.35rem;
  margin: 48px 0 18px;
  padding: 0 0 10px;
  border-bottom: 2px solid var(--border);
  letter-spacing: 0.02em;
  line-height: 1.5;
  scroll-margin-top: 24px;
}
.article-body h3 {
  font-family: 'Shippori Mincho B1', serif;
  color: var(--gold);
  font-size: 1.1rem;
  margin: 32px 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
  line-height: 1.5;
}
.article-body ul,
.article-body ol {
  padding-left: 1.6em;
  margin: 12px 0 20px;
}
.article-body li {
  margin-bottom: 8px;
  line-height: 1.85;
}
.article-body strong {
  color: var(--gold-lt);
  font-weight: 700;
}
.article-body a {
  color: var(--gold-lt);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover { color: var(--gold); }

/* ── まとめボックス ────────────────────────────── */
.summary-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 40px 0 20px;
}
.summary-box ul {
  padding-left: 1.4em;
  margin: 0;
}
.summary-box li {
  margin-bottom: 8px;
  line-height: 1.8;
}

/* ── 計算ブロック (本命星計算など、中間値と最終答えを視覚分離) ── */
.calc-warning {
  background: rgba(168, 33, 33, 0.08);
  border-left: 3px solid #b85a5a;
  padding: 14px 18px;
  margin: 16px 0 20px;
  font-size: 0.9rem;
  color: var(--text);
  border-radius: 6px;
}
.calc-warning strong {
  color: #f0d060;
  margin-right: 6px;
}
.calc-example {
  background: var(--accent-bg);
  border: 1px solid var(--border-lt);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 14px 0 22px;
}
.calc-label {
  font-family: 'Shippori Mincho B1', serif;
  color: var(--gold-lt);
  font-size: 0.92rem;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-lt);
}
.calc-line {
  font-size: 0.95rem;
  color: var(--text);
  font-family: 'SFMono-Regular', 'Menlo', monospace;
  padding: 3px 0;
  letter-spacing: 0.02em;
}
.calc-tag {
  display: inline-block;
  margin-left: 10px;
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: 'Noto Serif JP', serif;
  letter-spacing: 0;
}
.calc-answer {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  font-size: 1.05rem;
  color: var(--text);
}
.calc-answer strong {
  color: var(--gold-lt);
  font-size: 1.1rem;
  font-weight: 700;
  margin-left: 6px;
}

/* ── 関連記事 ──────────────────────────────────── */
.related-articles {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.related-articles h2 {
  font-family: 'Shippori Mincho B1', serif;
  color: var(--gold-lt);
  font-size: 1.1rem;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.related-list {
  list-style: none;
  padding: 0;
}
.related-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-lt);
  font-size: 0.95rem;
}
.related-list li:last-child { border-bottom: none; }
.related-list a {
  color: var(--gold-lt);
  text-decoration: none;
}
.related-list a:hover { text-decoration: underline; }
.related-list .coming {
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-right: 6px;
}

/* ── ページナビ ────────────────────────────────── */
.page-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-lt);
  flex-wrap: wrap;
}
.page-nav a {
  color: var(--gold-lt);
  text-decoration: none;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.92rem;
}
.page-nav a:hover { background: var(--accent-bg); }

/* ── 記事一覧 (index.html) 用 ──────────────────── */
.list-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}
.list-header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.list-header h1 {
  font-family: 'Shippori Mincho B1', serif;
  font-size: 1.9rem;
  color: var(--gold-lt);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.list-header .sub {
  color: var(--text-dim);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
}
.list-header p {
  margin-top: 16px;
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.9;
}
.pillar {
  margin-bottom: 40px;
}
.pillar h2 {
  font-family: 'Shippori Mincho B1', serif;
  color: var(--gold);
  font-size: 1.2rem;
  margin-bottom: 8px;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
}
.pillar .pillar-desc {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-bottom: 16px;
  padding-left: 12px;
}
.article-item {
  display: block;
  padding: 16px 20px;
  margin-bottom: 10px;
  background: var(--card-bg);
  border: 1px solid var(--border-lt);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  transition: all 0.18s ease;
}
.article-item:hover {
  border-color: var(--gold);
  background: rgba(30,27,48,0.95);
}
.article-item .num {
  color: var(--gold);
  font-family: 'Shippori Mincho B1', serif;
  font-size: 0.85rem;
  margin-right: 8px;
}
.article-item.coming {
  opacity: 0.75;
  pointer-events: none;
  position: relative;
}
.article-item.coming .badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  background: rgba(212,175,55,0.12);
  border: 1px solid rgba(212,175,55,0.3);
  border-radius: 999px;
  color: var(--gold-lt);
  font-size: 0.72rem;
  font-family: 'Shippori Mincho B1', serif;
  letter-spacing: 0.03em;
  vertical-align: 1px;
}

/* ── レスポンシブ ─────────────────────────────── */
@media (max-width: 600px) {
  .article-container { padding: 20px 16px 48px; }
  .article-header h1 { font-size: 1.4rem; }
  .article-body { font-size: 0.98rem; }
  .article-body h2 { font-size: 1.2rem; margin-top: 36px; }
  .article-body h3 { font-size: 1.02rem; }
  .toc { padding: 14px 18px; }
  .summary-box { padding: 18px 18px; }
  .list-container { padding: 28px 16px 56px; }
  .list-header h1 { font-size: 1.5rem; }
  .article-item { padding: 14px 16px; }
}