/* =====================================================
   Kokoro no Hon — スタイルシート
   ===================================================== */

/* -- カラーパレット & トークン -- */
:root {
  /* 構造の色は深緑（本棚と窓辺の植物）。背景はほぼ白の1色。
     ベージュは使わない（AI生成サイトの定番配色に見えるため）。茶はロゴと購入まわりだけ。 */
  --clr-bg:         #fdfdfc;
  --clr-surface:    #ffffff;
  --clr-surface-2:  #f1f3f2;
  --clr-border:     #dfe3e1;
  --clr-text:       #1c2420;
  --clr-text-sub:   #59625d;
  --clr-accent:     #2f4a3f;
  --clr-accent-lt:  #5b7569;
  --clr-accent-bg:  #edf1ef;
  --clr-gold:       #a8823f;
  --clr-tag-bg:     #edf1ef;
  --clr-tag-text:   #2f4a3f;
  --clr-amazon:     #ff9900;
  --clr-amazon-dk:  #e07000;
  --clr-rakuten:    #bf0000;
  --clr-rakuten-dk: #9a0000;
  --radius-sm:      6px;
  --radius-md:      12px;
  --radius-lg:      20px;
  --shadow-card:    0 2px 12px rgba(28,36,32,.06);
  --shadow-hover:   0 6px 24px rgba(28,36,32,.12);
  --font-serif:     'Shippori Mincho', 'Noto Serif JP', Georgia, serif;
  --font-sans:      'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --transition:     .2s ease;
}

/* -- リセット & ベース -- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--clr-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

/* -- ヘッダー -- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--clr-border);
}
.site-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-text);
  text-decoration: none;
}
.site-logo-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  flex-shrink: 0;
}
.site-logo-text { letter-spacing: .04em; white-space: nowrap; }
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 44px;
  min-height: 44px;
  margin-left: auto;
  padding: 8px 10px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--clr-text);
  font-family: inherit;
  font-size: .85rem;
  line-height: 1;
  cursor: pointer;
}
.nav-toggle-bars {
  position: relative;
  width: 18px;
  height: 2px;
  background: currentColor;
  flex-shrink: 0;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
}
.nav-toggle-bars::before { top: -6px; }
.nav-toggle-bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { top: 0; transform: rotate(-45deg); }
.nav-toggle-label { white-space: nowrap; }
.site-nav {
  display: flex;
  gap: 24px;
  align-items: center;
}
.site-nav a {
  color: var(--clr-text-sub);
  font-size: .9rem;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color var(--transition);
}
.site-nav a:hover, .site-nav a.active {
  color: var(--clr-accent);
  text-decoration: none;
}
@media (max-width: 800px) {
  .nav-toggle { display: inline-flex; }
  .site-header-inner { position: relative; }
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 120;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 4px 0 8px;
    background: rgba(255,255,255,.98);
    border-bottom: 1px solid var(--clr-border);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a {
    display: block;
    min-height: 44px;
    padding: 10px 20px;
    font-size: 1rem;
    line-height: 1.4;
  }
}

/* -- ヒーロー -- */
.hero {
  background: var(--clr-bg);
  text-align: center;
  padding: 72px 20px 56px;
  border-bottom: 1px solid var(--clr-border);
}
.hero-kicker {
  font-size: .85rem;
  color: var(--clr-accent);
  letter-spacing: .12em;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: .06em;
  margin-bottom: 16px;
}
.hero-sub {
  font-size: 1rem;
  color: var(--clr-text-sub);
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.8;
}
.hero-updated {
  font-size: .8rem;
  color: var(--clr-text-sub);
  margin-top: 20px;
}

/* -- 検索ボックス -- */
.searchbox {
  max-width: 480px;
  margin: 0 auto 8px;
}
.searchbox input {
  width: 100%;
  padding: 13px 18px;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  background: #fff;
  color: var(--clr-text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.searchbox input:focus {
  border-color: var(--clr-accent-lt);
  box-shadow: 0 0 0 3px rgba(196,154,108,.2);
}

/* -- コンテナ -- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

/* -- ツールバー -- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-bottom: 28px;
}
.toolbar-label {
  font-size: .82rem;
  color: var(--clr-text-sub);
  font-weight: 500;
  flex-shrink: 0;
}
.genre-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.sort-box {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.sort-box select {
  padding: 6px 12px;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: .85rem;
  background: #fff;
  color: var(--clr-text);
  cursor: pointer;
}

/* -- チップ -- */
.chip {
  padding: 5px 14px;
  border-radius: 99px;
  font-size: .82rem;
  font-weight: 500;
  cursor: pointer;
  border: 1.5px solid var(--clr-border);
  background: #fff;
  color: var(--clr-text-sub);
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.chip:hover, .chip.active {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: #fff;
  text-decoration: none;
}

/* -- セクション見出し -- */
.section-head {
  text-align: center;
  margin-bottom: 32px;
}
.count-badge {
  display: inline-block;
  background: var(--clr-accent);
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  padding: 3px 12px;
  border-radius: 99px;
  margin-bottom: 10px;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.section-head p { font-size: .88rem; color: var(--clr-text-sub); }
.rank-activity {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}
.rank-activity-item {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  color: var(--clr-accent);
  background: var(--clr-accent-bg);
  padding: 4px 10px;
  border-radius: 99px;
}

/* -- カードグリッド --
   角丸・白背景・影の「カード」をやめ、書影とテキストが余白の中に
   浮かぶ構成にする。編集部の書棚のような、写真とタイポグラフィ主体の見せ方。 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 32px 24px;
  margin-bottom: 48px;
}
.grid-compact {
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 24px 18px;
}
/* 殿堂入り（1位）だけ2倍幅の横長構図で見せ、均一な羅列を崩す */
.grid .card:has(.rank-top3) {
  grid-column: span 2;
}
.grid .card:has(.rank-top3) .cover {
  aspect-ratio: 16/9;
}
.grid .card:has(.rank-top3) .cover img {
  object-position: top;
}
.grid .card:has(.rank-top3) .card-title {
  font-size: 1.25rem;
}
/* 表紙の色に関わらずランク数字・Editor's Choiceラベルが読めるよう、上下に暗いグラデーションを敷く */
.grid .card:has(.rank-top3) .cover::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(to bottom, rgba(0,0,0,.4) 0%, transparent 24%, transparent 76%, rgba(0,0,0,.35) 100%);
  pointer-events: none;
}
.grid .card:has(.rank-top3) .rank-top3,
.grid .card:has(.rank-top3) .crown {
  z-index: 3;
}

/* -- カード(枠なし) -- */
.card {
  display: flex;
  flex-direction: column;
  background: none;
  border-radius: 0;
  box-shadow: none;
  border: none;
  overflow: visible;
  text-decoration: none;
  color: var(--clr-text);
}
.card[hidden] { display: none !important; }
.card:hover { text-decoration: none; }
.card:hover .cover img { transform: scale(1.02); }
.cover {
  position: relative;
  aspect-ratio: 2/3;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  /* 書影自体には最小限の陰影だけ与え、本の物質感を出す */
  box-shadow: 0 4px 16px rgba(28,36,32,.12);
}
@keyframes cover-shimmer {
  0% { background-position: -150% 0; }
  100% { background-position: 150% 0; }
}
.cover {
  background: linear-gradient(90deg, var(--clr-surface-2) 25%, var(--clr-border) 50%, var(--clr-surface-2) 75%);
  background-size: 200% 100%;
  animation: cover-shimmer 1.6s ease-in-out infinite;
}
.cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  transition: transform .4s ease;
}
.cover-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  background: linear-gradient(160deg, var(--clr-surface-2), var(--clr-accent-bg));
}
.cover-fallback-title {
  font-family: var(--font-serif);
  font-size: .85rem;
  color: var(--clr-accent);
  text-align: center;
  line-height: 1.4;
  font-weight: 700;
}
.cover-fallback-lg { aspect-ratio: 2/3; border-radius: var(--radius-sm); }
.rank {
  position: absolute;
  top: 10px;
  left: 10px;
  width: auto;
  height: auto;
  border-radius: 0;
  background: none;
  display: block;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: rgba(255,255,255,.9);
  text-shadow: 0 1px 5px rgba(0,0,0,.5);
}
.rank-top3 {
  /* 上位3件は編集部の見出し番号のような大きく薄い数字にする */
  top: 8px;
  left: 12px;
  font-size: 2.4rem;
  color: rgba(255,255,255,.85);
  text-shadow: 0 1px 6px rgba(0,0,0,.5);
}
.rank-move {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,.6);
}
.rank-move-new::before { content: "NEW "; }
.rank-move-up { color: #cfe8ff; }
.rank-move-down { color: #eee; }
.crown {
  /* 黒帯の👑バッジをやめ、編集部の英字キャプション風ラベルにする */
  position: absolute;
  top: 12px;
  right: 12px;
  bottom: auto;
  left: auto;
  text-align: right;
  font-size: .65rem;
  font-weight: 600;
  color: #fff;
  background: none;
  padding: 0;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-shadow: 0 1px 4px rgba(0,0,0,.6);
}
.card-body {
  padding: 14px 2px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.card-title {
  font-family: var(--font-serif);
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-author {
  font-size: .76rem;
  color: var(--clr-text-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: .02em;
}
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}
.card-publisher {
  font-size: .68rem;
  color: var(--clr-text-sub);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.card-genre {
  background: none;
  color: var(--clr-tag-text);
  font-size: .68rem;
  padding: 0;
  border-radius: 0;
  font-weight: 500;
}
.card-genre:not(:last-child)::after { content: " ・"; color: var(--clr-border); }
.card-scores {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--clr-border);
}
.score-star { color: var(--clr-gold); font-weight: 700; font-size: .8rem; }
.score-mention { color: var(--clr-text-sub); font-size: .8rem; }
.grid-empty {
  text-align: center;
  color: var(--clr-text-sub);
  padding: 40px;
  font-size: 1rem;
}
.grid-empty[hidden] { display: none !important; }

/* -- ジャンルセクション -- */
.genre-links {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--clr-border);
}
.genre-links h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

/* -- サイト概要 -- */
.site-about-summary {
  margin-top: 48px;
  padding: 28px 24px;
  background: var(--clr-accent-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
}
.site-about-summary h2 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--clr-accent);
}
.site-about-summary p { font-size: .92rem; color: var(--clr-text-sub); line-height: 1.8; }

/* -- FAQ（検索受け皿） -- */
.faq-section { margin: 48px 0 32px; }
.faq-list { display: grid; gap: 10px; max-width: 720px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--clr-border, #e5e2dc);
  border-radius: 12px;
  background: var(--clr-card, #fff);
  padding: 0 16px;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: .95rem;
  padding: 14px 0;
  color: var(--clr-text, #2a2622);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  float: right;
  font-weight: 400;
  color: var(--clr-text-sub, #8a837a);
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p {
  margin: 0 0 14px;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--clr-text-sub, #5c564e);
}

/* -- パンくず -- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  color: var(--clr-text-sub);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--clr-accent); }
.breadcrumb a:hover { text-decoration: underline; }

/* -- ページ見出し -- */
.page-head {
  margin-bottom: 32px;
}
.page-kicker {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--clr-accent-lt);
  margin-bottom: 6px;
}
.page-badge {
  display: inline-block;
  background: var(--clr-tag-bg);
  color: var(--clr-tag-text);
  font-size: .78rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 8px;
}
.page-head h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 6px;
}
.page-head p { font-size: .9rem; color: var(--clr-text-sub); }
.genre-lead {
  max-width: 640px;
  margin: 12px auto 0;
  font-size: .92rem !important;
  line-height: 1.9;
  text-align: left;
}

/* -- 書籍詳細 -- */
.book-detail {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 36px;
  margin-bottom: 56px;
}
.book-detail-cover img {
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(0,0,0,.15);
  width: 200px;
  height: 300px;
  object-fit: cover;
}
.book-title {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.3;
}
.book-author, .book-publisher {
  font-size: .9rem;
  color: var(--clr-text-sub);
  margin-bottom: 4px;
}
.book-genres {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.book-scores {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin: 20px 0;
  padding: 16px 20px;
  background: var(--clr-accent-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
}
.score-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.score-label {
  font-size: .72rem;
  color: var(--clr-text-sub);
  font-weight: 500;
}
.score-value { font-size: 1.1rem; font-weight: 700; }
.score-total { color: var(--clr-accent); }
.score-sub { font-size: .7rem; color: var(--clr-text-sub); }
.book-overview {
  margin-bottom: 24px;
}
.book-overview h2 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--clr-accent);
}
.book-overview p {
  font-size: .92rem;
  line-height: 1.9;
  color: var(--clr-text-sub);
}
.book-guide {
  margin-bottom: 24px;
}
.book-guide h2 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  margin: 16px 0 8px;
  color: var(--clr-accent);
}
.book-guide h2:first-child { margin-top: 0; }
.book-guide p {
  font-size: .92rem;
  line-height: 1.9;
  color: var(--clr-text-sub);
}
.canonical-next { margin-top: 8px; }
.mention-sources {
  margin-bottom: 24px;
  font-size: .82rem;
  color: var(--clr-text-sub);
}
.mention-sources a {
  color: var(--clr-text-sub);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.mention-sources a:hover {
  color: var(--clr-accent);
}
.buy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}
.amazon-btn,
.rakuten-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff !important;
  font-weight: 700;
  font-size: .95rem;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  text-decoration: none !important;
  transition: background var(--transition), transform var(--transition);
}
.amazon-btn {
  background: var(--clr-amazon);
  box-shadow: 0 2px 8px rgba(255,153,0,.3);
}
.amazon-btn:hover {
  background: var(--clr-amazon-dk);
  transform: translateY(-2px);
}
.rakuten-btn {
  background: var(--clr-rakuten);
  box-shadow: 0 2px 8px rgba(191,0,0,.25);
}
.rakuten-btn:hover {
  background: var(--clr-rakuten-dk);
  transform: translateY(-2px);
}

/* -- 関連書籍 -- */
.related-books {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--clr-border);
}
.related-books h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

/* -- 状況別特集 -- */
.hero-compact { padding: 48px 20px 36px; }
.hero-badge, .feature-badge {
  display: inline-block;
  background: var(--clr-accent-bg);
  color: var(--clr-accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 14px;
}
.hero-accent { color: var(--clr-accent); }
.hero-title-main { color: var(--clr-text); }
.hero-has-bg {
  position: relative;
  color: #fff;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-panel {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  /* 参考画像の「本の質感」路線に寄せ、ボカしを弱めて写真をくっきり見せる */
  filter: blur(1px);
  transform: scale(1.04);
}
.hero-bg-overlay {
  position: absolute;
  inset: 0;
  /* 上部は写真を見せ、テキストが乗る下部だけ暗くして可読性を確保する */
  background: linear-gradient(180deg, rgba(28,36,32,.25) 0%, rgba(28,36,32,.55) 45%, rgba(28,36,32,.82) 100%);
  z-index: 1;
}
/* トップページのヒーロー写真は静物で情報量が少ないため、特集ページより薄いオーバーレイで写真を見せる */
.hero-bg-overlay-light {
  background: linear-gradient(180deg, rgba(44,32,24,.12) 0%, rgba(44,32,24,.35) 45%, rgba(44,32,24,.62) 100%);
}
.hero-has-bg .hero-inner { position: relative; z-index: 2; }
.hero-has-bg .hero-accent,
.hero-has-bg .hero-title-main,
.hero-has-bg h1,
.hero-has-bg .hero-sub,
.hero-has-bg .hero-updated { color: #fff; }
.hero-has-bg h1,
.hero-has-bg .hero-sub { text-shadow: 0 1px 12px rgba(0,0,0,.45); }
.hero-has-bg .hero-kicker { color: #fff; text-shadow: 0 1px 8px rgba(0,0,0,.4); text-transform: none; letter-spacing: .08em; }
.hero-has-bg .hero-badge {
  background: rgba(255,255,255,.16);
  color: #fff;
}

/* -- ヒーロー：気持ちから探す -- */
.mood-entry {
  max-width: 640px;
  margin: 0 auto 8px;
}
.mood-prompt {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  margin-bottom: 14px;
  color: inherit;
}
.mood-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.mood-chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,.9);
  color: var(--clr-text) !important;
  font-size: .92rem;
  font-weight: 600;
  text-decoration: none !important;
  box-shadow: 0 2px 10px rgba(0,0,0,.12);
  transition: transform var(--transition), background var(--transition);
}
.mood-chip:hover {
  transform: translateY(-2px);
  background: #fff;
}
.mood-more {
  margin-top: 14px;
  font-size: .88rem;
}
.hero-has-bg .mood-more a { color: #fff; text-shadow: 0 1px 6px rgba(0,0,0,.35); }

/* 特集ページのヒーロー: 書影を全面拡大せず、実寸に近いサイズで右に添える。
   1冊分の小さな画像を画面幅いっぱいに引き伸ばすと粗さが目立つための対応。 */
.hero-has-cover {
  text-align: left;
  background: var(--clr-bg);
}
.hero-has-cover .hero-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  max-width: 900px;
  margin: 0 auto;
}
.hero-has-cover .hero-text { flex: 1 1 auto; min-width: 0; }
.hero-has-cover .hero-sub { margin-left: 0; }
.hero-cover-side {
  flex: 0 0 auto;
  width: 160px;
}
.hero-cover-side img {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 32px rgba(28,36,32,.22);
  transform: rotate(-2deg);
}
@media (max-width: 640px) {
  .hero-has-cover .hero-inner { flex-direction: column-reverse; gap: 24px; }
  .hero-has-cover { text-align: center; }
  .hero-cover-side { width: 120px; }
}

.feature-links { margin: 56px 0 40px; }
.feature-links-primary { margin-top: 8px; }
.ranking-section { margin-top: 48px; padding-top: 8px; }
.ranking-section .grid {
  grid-template-columns: repeat(5, 1fr);
  gap: 28px 20px;
}
@media (max-width: 900px) {
  .ranking-section .grid { grid-template-columns: repeat(2, 1fr); }
}
.searchbox-inline {
  flex: 1 1 240px;
  max-width: 420px;
  margin: 0;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.feature-card {
  /* 背景に書影/写真を敷く前提のカードなので背景・オーバーレイの仕組みは残し、
     角丸と影だけを外して量産カード感を消す */
  position: relative;
  min-height: 220px;
  padding: 24px 20px;
  border-radius: 0;
  border-top: 1px solid var(--clr-border);
  background: linear-gradient(135deg, var(--clr-surface-2), var(--clr-accent-bg));
  background-size: cover;
  background-position: center;
  color: var(--clr-text);
  text-decoration: none !important;
  overflow: hidden;
  box-shadow: none;
  transition: opacity var(--transition);
}
.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(253,253,252,.15), rgba(253,253,252,.92));
}
.feature-card > * { position: relative; z-index: 1; }
.feature-card:hover {
  opacity: .85;
}
.feature-card h2,
.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.5;
  margin: 8px 0;
}
.feature-card p {
  font-size: .88rem;
  color: var(--clr-text-sub);
  line-height: 1.6;
}
.feature-more {
  text-align: center;
  margin-top: 16px;
  font-size: .9rem;
}
.aio-summary {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin-bottom: 28px;
  font-size: .92rem;
  color: var(--clr-text-sub);
  line-height: 1.8;
}

.feature-fit {
  margin: -8px 0 32px;
  padding: 18px 0 0;
  border-top: 1px solid var(--clr-border);
}
.feature-fit-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 14px;
  color: var(--clr-text);
}
.feature-fit-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .feature-fit-grid { grid-template-columns: repeat(3, 1fr); }
}
.feature-fit-card {
  background: none;
  border: none;
  border-left: 2px solid var(--clr-border);
  border-radius: 0;
  padding: 2px 0 2px 16px;
}
.feature-fit-card h3 {
  font-size: .8rem;
  font-weight: 700;
  color: var(--clr-accent, #b45309);
  letter-spacing: .02em;
  margin: 0 0 10px;
}
.feature-fit-card ul {
  margin: 0;
  padding: 0 0 0 1.1em;
  color: var(--clr-text-sub);
  font-size: .85rem;
  line-height: 1.7;
}
.feature-fit-card li { margin-bottom: 6px; }
.feature-fit-card-muted {
  border-left-style: dashed;
}
.feature-fit-card-muted h3 { color: var(--clr-text-sub); opacity: .85; }
.feature-fit-card-muted ul { color: var(--clr-text-sub); opacity: .85; }

.feature-why {
  max-width: 720px;
  margin: 0 0 36px;
}
.feature-why h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--clr-accent);
  margin-bottom: 12px;
}
.feature-why p {
  margin-bottom: 12px;
  line-height: 1.9;
  color: var(--clr-text);
}
.feature-soft-note {
  font-size: .82rem;
  color: var(--clr-text-sub);
  margin-top: 8px !important;
  padding: 10px 12px;
  background: var(--clr-surface-2);
  border-radius: var(--radius-sm);
}
.section-head-sub { margin-top: 40px; }
.curated-picks { margin-bottom: 8px; }
.pick-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--clr-accent);
  margin-bottom: 4px;
}
.feature-practices,
.feature-related {
  margin-top: 48px;
}
.mood-chips-page {
  justify-content: flex-start;
}
.mood-chip-light {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text) !important;
  box-shadow: none;
}
.mood-chip-light:hover {
  background: var(--clr-accent-bg);
  border-color: var(--clr-accent-lt);
}

.curated-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.curated-item {
  /* 角丸ボックスの縦積みをやめ、罫線区切りのリストにする */
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  padding: 20px 0;
  background: none;
  border: none;
  border-bottom: 1px solid var(--clr-border);
  border-radius: 0;
  text-decoration: none !important;
  color: inherit;
  transition: opacity var(--transition);
}
.curated-list .curated-item:first-child { padding-top: 0; }
/* curated-item より後・詳細度を上げて3列を確実に適用 */
.curated-item.curated-pick {
  grid-template-columns: 36px 96px minmax(0, 1fr);
  align-items: start;
  background: none;
}
.pick-rank {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-accent);
  line-height: 1;
  padding-top: 6px;
  text-align: center;
}
.curated-item:hover {
  opacity: .72;
}
.curated-cover img,
.curated-cover .cover-fallback {
  width: 96px;
  height: 144px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}
.curated-body h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  margin-bottom: 4px;
}
.curated-author {
  font-size: .85rem;
  color: var(--clr-text-sub);
  margin-bottom: 8px;
}
.curated-comment {
  margin-top: 10px;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--clr-text-sub);
}
.back-link { margin-top: 32px; }
.back {
  font-size: .9rem;
  color: var(--clr-text-sub);
}

/* -- 実践例 -- */
.practice-badge {
  /* 丸ピルバッジをやめ、編集部の英字キャプション風ラベルにする */
  display: inline-block;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 0;
  border-radius: 0;
  background: none;
  color: var(--clr-accent);
}
.practice-card-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 40px 32px;
}
.practice-card {
  /* 枠・角丸・影を外し、上の罫線だけで区切る余白主体のレイアウトに */
  display: block;
  padding: 20px 0 0;
  border-radius: 0;
  background: none;
  border: none;
  border-top: 1px solid var(--clr-border);
  text-decoration: none !important;
  color: inherit;
  transition: opacity var(--transition);
}
.practice-card:hover {
  opacity: .72;
}
.practice-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin: 10px 0 8px;
  line-height: 1.5;
}
.practice-card p {
  font-size: .88rem;
  color: var(--clr-text-sub);
  line-height: 1.6;
}
.practice-links { margin: 56px 0 40px; }
.practice-genre-block { margin-bottom: 40px; }
.practice-genre-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: 16px;
}
.practice-article { padding-bottom: 48px; }
.practice-header { margin: 24px 0 28px; }
.practice-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.45;
  margin: 12px 0;
}
.practice-lead {
  font-size: 1.05rem;
  color: var(--clr-text-sub);
  line-height: 1.8;
}
.practice-updated {
  margin-top: 12px;
  font-size: .82rem;
  color: var(--clr-text-muted);
}
.practice-body p {
  margin-bottom: 1.1em;
  line-height: 1.9;
  color: var(--clr-text);
}
.practice-disclaimer {
  margin: 28px 0;
  padding: 14px 16px;
  font-size: .85rem;
  color: var(--clr-text-sub);
  background: var(--clr-surface-2);
  border-radius: var(--radius-sm);
}
.practice-related h2,
.practice-notes-on-book h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin-bottom: 16px;
}
.practice-book-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.practice-book-card {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 14px;
  padding: 16px 0;
  border: none;
  border-bottom: 1px solid var(--clr-border);
  border-radius: 0;
  text-decoration: none !important;
  color: inherit;
  background: none;
}
.practice-book-list .practice-book-card:first-child { padding-top: 0; }
.practice-book-card:hover { opacity: .72; }
.practice-book-cover img,
.practice-book-cover .cover-fallback {
  width: 72px;
  height: 108px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}
.practice-book-meta h3 {
  font-size: .98rem;
  margin-bottom: 4px;
  line-height: 1.45;
}
.practice-book-meta p {
  font-size: .85rem;
  color: var(--clr-text-sub);
}
.practice-note-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.practice-note-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .95rem;
}
.practice-notes-on-book { margin-top: 40px; }

/* -- フッター -- */
.footer {
  background: var(--clr-text);
  color: rgba(255,255,255,.7);
  margin-top: 0;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: #fff;
  font-weight: 700;
}
.footer-tagline { font-size: .88rem; }
.footer-nav {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-nav a { color: rgba(255,255,255,.7); font-size: .82rem; }
.footer-nav a:hover { color: #fff; text-decoration: none; }
.footer-note { font-size: .75rem; opacity: .6; }
.footer-sisters { font-size: .75rem; opacity: .65; }
.footer-sisters a { color: rgba(255,255,255,.7); }
.footer-sisters a:hover { color: #fff; text-decoration: none; }
.footer-copy { font-size: .75rem; opacity: .5; }

/* -- レスポンシブ -- */
@media (max-width: 680px) {
  .book-detail {
    grid-template-columns: 1fr;
  }
  .book-detail-cover {
    display: flex;
    justify-content: center;
  }
  .sort-box { margin-left: 0; }
  .hero { padding: 48px 16px 36px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
  .ranking-section .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 420px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .ranking-section .grid { grid-template-columns: repeat(2, 1fr); }
}

/* -- すべての本：ジャンルの絞り込み（丸い囲みは使わず、下線で選択中を示す） -- */
.shelf-filters { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 20px; margin: 0 0 28px; padding-bottom: 12px; border-bottom: 1px solid var(--clr-border); }
.shelf-filters .chip {
  padding: 6px 2px; border: none; border-bottom: 2px solid transparent; border-radius: 0;
  background: transparent; color: var(--clr-text-sub); font-size: .9rem;
}
.shelf-filters .chip:hover { background: transparent; color: var(--clr-text); }
.shelf-filters .chip.active { background: transparent; color: var(--clr-text); font-weight: 700; border-bottom-color: var(--clr-accent); }
.chip-count { margin-left: 4px; font-size: .75rem; font-weight: 400; color: var(--clr-text-sub); font-variant-numeric: tabular-nums; }
.shelf-count { margin-left: auto; font-size: .82rem; color: var(--clr-text-sub); }
.shelf-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 28px 20px; }
.shelf-grid .card[hidden] { display: none; }
@media (max-width: 900px) { .shelf-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 600px) { .shelf-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 14px; } }
.feature-more a + a { margin-left: 20px; }

/* -- トップのヒーロー：雑誌の扉ふう（左に文字と気持ちの目次、右に写真）。
   写真の中央に白文字＋丸いボタンを並べる形はAI生成サイトの定番に見えるのでやめた -- */
.hero-split { background: var(--clr-bg); text-align: left; padding: 0; border-bottom: 1px solid var(--clr-border); overflow: hidden; }
.hero-split-inner {
  max-width: 1100px; margin: 0 auto; padding: 0 20px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; min-height: 600px;
}
.hero-split .hero-copy { min-width: 0; padding: 64px 0 48px; display: flex; flex-direction: column; justify-content: center; }
.hero-split .hero-kicker { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; font-size: .8rem; color: var(--clr-text-sub); letter-spacing: .04em; }
.hero-split .hero-kicker::before { content: ""; width: 32px; height: 1px; background: var(--clr-accent); }
.hero-split h1 {
  font-family: var(--font-serif); font-size: clamp(2.2rem, 4.6vw, 3.6rem); line-height: 1.3; letter-spacing: .08em;
  margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--clr-border);
}
.hero-split .hero-sub { margin: 0 0 24px; color: var(--clr-text-sub); text-shadow: none; }
.hero-index { list-style: none; margin: 0 0 16px; padding: 0; border-top: 1px solid var(--clr-border); max-width: 440px; }
.hero-index li { border-bottom: 1px solid var(--clr-border); }
.hero-index a {
  display: grid; grid-template-columns: 2.4em 1fr auto; align-items: baseline; gap: 12px;
  padding: 10px 0; min-height: 44px; color: var(--clr-text); text-decoration: none;
}
.hero-index a::after { content: "→"; color: var(--clr-text-sub); font-size: .85rem; }
.hero-index a:hover { color: var(--clr-accent); text-decoration: none; }
.hero-index-no { font-family: var(--font-serif); font-size: .8rem; color: var(--clr-accent); }
.hero-index-label { font-family: var(--font-serif); font-size: 1rem; font-weight: 600; }
.hero-more { margin: 0 0 20px; font-size: .88rem; }
.hero-split .hero-updated { margin-top: 0; color: var(--clr-text-sub); font-size: .78rem; }
.hero-photo {
  /* 右端まで裁ち落とす: 中央1100pxの外側＋内側の余白20px ぶん右へ伸ばす */
  margin: 0 min(-20px, calc((1100px - 100vw) / 2 - 20px)) 0 0;
  min-width: 0; overflow: hidden; background: var(--clr-surface-2);
  /* 写真の左端を背景の白へ溶かす */
  -webkit-mask-image: linear-gradient(to right, transparent 0, rgba(0,0,0,.35) 14%, #000 34%);
  mask-image: linear-gradient(to right, transparent 0, rgba(0,0,0,.35) 14%, #000 34%);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 70% 78%; display: block; }
@media (max-width: 860px) {
  .hero-split-inner { grid-template-columns: 1fr; gap: 0; min-height: 0; }
  .hero-photo {
    order: -1; margin: 0 -20px; height: 220px;
    -webkit-mask-image: linear-gradient(to bottom, #000 70%, transparent 100%);
    mask-image: linear-gradient(to bottom, #000 70%, transparent 100%);
  }
  .hero-split .hero-copy { padding: 28px 0 36px; }
}

/* -- 丸い囲みをやめる（2026-10-27）。
   角丸の箱・丸いラベルが並ぶとAI生成サイトの定番に見えるので、罫線と文字の強弱で区切る -- */
/* ラベル類：塗りの丸ではなく、短い線を添えた小さな文字 */
.hero-badge, .feature-badge, .page-badge, .practice-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0; border: none; border-radius: 0; background: transparent;
  color: var(--clr-accent); font-size: .78rem; font-weight: 600; letter-spacing: .04em;
}
.hero-badge::before, .page-badge::before { content: ""; width: 24px; height: 1px; background: var(--clr-accent); }
.count-badge { padding: 0; border: none; border-radius: 0; background: transparent; color: var(--clr-text-sub); font-size: .8rem; }
/* ジャンルのタグ・関連リンク：下線で示す */
.chip, .genre-chips .chip {
  padding: 4px 0; border: none; border-bottom: 1px solid var(--clr-border); border-radius: 0;
  background: transparent; color: var(--clr-text); font-size: .88rem; font-weight: 500;
}
.chip:hover, .genre-chips .chip:hover { background: transparent; color: var(--clr-accent); border-bottom-color: var(--clr-accent); text-decoration: none; }
.chip.active, .genre-chips .chip.active { background: transparent; color: var(--clr-text); font-weight: 700; border-bottom: 2px solid var(--clr-accent); }
.genre-chips { gap: 8px 24px; }
.mood-chips-page { gap: 0 28px; }
.mood-chip, .mood-chip-light {
  padding: 8px 0; border: none; border-bottom: 1px solid var(--clr-border); border-radius: 0;
  background: transparent; box-shadow: none; color: var(--clr-text) !important; font-weight: 500;
}
.mood-chip::after { content: " →"; color: var(--clr-text-sub); }
.mood-chip:hover { transform: none; background: transparent; color: var(--clr-accent) !important; border-bottom-color: var(--clr-accent); }
/* 箱：枠と角丸を外し、上下の罫線だけにする */
.aio-summary, .site-about-summary {
  padding: 16px 0; border: none; border-radius: 0; background: transparent; box-shadow: none;
  border-top: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border);
}
.book-scores {
  padding: 14px 0; border: none; border-radius: 0; background: transparent; box-shadow: none;
  border-top: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border);
}
.faq-item { border: none; border-radius: 0; background: transparent; box-shadow: none; border-bottom: 1px solid var(--clr-border); }
.faq-item:first-child { border-top: 1px solid var(--clr-border); }
.feature-soft-note, .practice-disclaimer { padding: 0; border: none; border-radius: 0; background: transparent; font-size: .8rem; color: var(--clr-text-sub); }

/* -- 購入ボタン：Amazonのオレンジと楽天の赤を大きく並べるのをやめ、ロゴの茶色1色にそろえる。
   本は Amazon で買う人が多いので Amazon を塗り、楽天は同じ大きさの枠線にする -- */
.amazon-btn,
.rakuten-btn {
  padding: 12px 24px; border-radius: 4px; font-size: .92rem; box-shadow: none;
  transition: background var(--transition), color var(--transition);
}
.amazon-btn { background: #8b5e3c; border: 1px solid #8b5e3c; box-shadow: none; }
.amazon-btn:hover { background: #6f4a2f; border-color: #6f4a2f; transform: none; }
.rakuten-btn { background: transparent; border: 1px solid #8b5e3c; color: #8b5e3c !important; box-shadow: none; }
.rakuten-btn:hover { background: #f6f1ec; color: #6f4a2f !important; transform: none; }
.amazon-btn span::after, .rakuten-btn span::after { content: " →"; }