/* ====== 愛の誤訳辞典 — 共通スタイル ====== */
:root {
  --paper:      #f4ecd8;
  --paper-2:    #ebe0c4;
  --ink:        #3a2e1f;
  --ink-soft:   #6b5a43;
  --accent:     #8a3a2e;
  --rule:       #b8a787;
  --shadow:     rgba(58, 46, 31, 0.15);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  line-height: 1.9;
  min-height: 100vh;
}

body {
  background-image:
    radial-gradient(rgba(120, 95, 60, 0.05) 1px, transparent 1px),
    radial-gradient(rgba(120, 95, 60, 0.04) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 2px;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 32px 80px;
}

/* ===== ヘッダー ===== */
.site-header {
  border-bottom: 3px double var(--rule);
  padding-bottom: 12px;
  margin-bottom: 40px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 14px;
  color: var(--ink-soft);
}
.site-header .site-title {
  font-size: 16px;
  color: var(--ink);
  letter-spacing: 0.15em;
  text-decoration: none;
}
.site-header nav a {
  color: var(--ink-soft);
  text-decoration: none;
  margin-left: 16px;
  font-size: 13px;
}
.site-header nav a:hover { color: var(--accent); }

/* ===== 表紙 ===== */
.cover {
  text-align: center;
  padding: 16px 24px 64px;
}
.cover h1 {
  font-size: 44px;
  letter-spacing: 0.2em;
  margin: 0 0 8px;
  font-weight: 700;
}
.cover .subtitle {
  color: var(--ink-soft);
  font-size: 14px;
  letter-spacing: 0.3em;
  margin-bottom: 32px;
}
.cover .lead {
  font-size: 16px;
  line-height: 2.0;
  max-width: 520px;
  margin: 0 auto 40px;
  text-align: left;
}

/* ===== ボタン ===== */
.btn {
  display: inline-block;
  padding: 14px 36px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-family: inherit;
  font-size: 15px;
  letter-spacing: 0.2em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn-primary { border-width: 2px; }

.btn-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 見出し ===== */
h2.section-title {
  font-size: 22px;
  letter-spacing: 0.15em;
  margin: 0 0 8px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 8px;
}
.section-lead {
  color: var(--ink-soft);
  font-size: 14px;
  margin-bottom: 32px;
}

/* ===== キーワード索引 ===== */
.category-block { margin-bottom: 40px; }
.category-name {
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin-bottom: 12px;
  padding-left: 8px;
  border-left: 3px solid var(--accent);
}
.keyword-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}
.keyword-list li a {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  border-radius: 2px;
}
.keyword-list li a:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* ===== カード候補一覧 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 28px;
}
.card-thumb {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--paper-2);
  padding: 16px;
  border: 1px solid var(--rule);
  box-shadow: 2px 3px 6px var(--shadow);
  transition: transform 0.15s, box-shadow 0.15s;
}
.card-thumb:hover {
  transform: translateY(-2px);
  box-shadow: 3px 5px 10px var(--shadow);
}
.card-thumb img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  margin-bottom: 12px;
  border: 1px solid var(--rule);
}
.card-thumb .cat-label {
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.2em;
}
.card-thumb .thumb-title {
  font-size: 16px;
  margin-top: 4px;
}

/* ===== カード詳細 ===== */
.card-detail {
  padding-top: 8px;
}
.card-category {
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.3em;
  text-align: center;
  margin-bottom: 8px;
}
.card-category::before { content: "〈 "; }
.card-category::after  { content: " 〉"; }

.card-title {
  font-size: 32px;
  text-align: center;
  letter-spacing: 0.15em;
  margin: 0 0 32px;
  font-weight: 700;
}

.card-image {
  text-align: center;
  margin-bottom: 32px;
}
.card-image img {
  max-width: 100%;
  max-height: 360px;
  border: 1px solid var(--rule);
  padding: 8px;
  background: #fff;
  box-shadow: 2px 3px 8px var(--shadow);
}

.card-question {
  font-size: 20px;
  text-align: center;
  color: var(--accent);
  margin: 24px 0 32px;
  letter-spacing: 0.05em;
}

.card-keywords {
  text-align: center;
  margin-bottom: 40px;
  color: var(--ink-soft);
  font-size: 14px;
  letter-spacing: 0.1em;
}
.card-keywords span { margin: 0 6px; }

.section-divider {
  text-align: center;
  color: var(--ink-soft);
  font-size: 13px;
  letter-spacing: 0.3em;
  margin: 32px 0 16px;
}
.section-divider::before,
.section-divider::after {
  content: "──";
  color: var(--rule);
  margin: 0 12px;
}

.child-message {
  font-size: 16px;
  line-height: 2.1;
  margin-bottom: 16px;
}

.column-body {
  font-size: 15px;
  line-height: 2.1;
  margin-bottom: 48px;
}

.card-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
  font-size: 14px;
}
.card-nav a {
  color: var(--ink-soft);
  text-decoration: none;
}
.card-nav a:hover { color: var(--accent); }

.nombre {
  text-align: center;
  color: var(--ink-soft);
  font-size: 12px;
  letter-spacing: 0.3em;
  margin-top: 48px;
}
.nombre::before { content: "— "; }
.nombre::after  { content: " —"; }

/* ===== select.html ===== */
.select-screen {
  text-align: center;
  padding: 80px 24px;
}
.select-screen h2 {
  font-size: 24px;
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}
.select-screen p {
  color: var(--ink-soft);
  margin-bottom: 48px;
}
.select-choices {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}
.select-choices .btn {
  min-width: 160px;
  padding: 20px 32px;
  font-size: 17px;
}

/* ===== 状態表示 ===== */
.loading, .empty {
  text-align: center;
  color: var(--ink-soft);
  padding: 40px 0;
}

@media (max-width: 520px) {
  .page { padding: 32px 20px 64px; }
  .cover h1 { font-size: 32px; }
  .card-title { font-size: 24px; }
}

/* ===== 索引ページ追加スタイル ===== */
.index-section { margin-bottom: 3rem; }
.index-heading {
  font-size: 1.3rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.3rem;
  margin-bottom: 0.5rem;
}
.index-lead {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.category-block {
  border-left: 4px solid var(--rule);
  padding-left: 0.8rem;
  margin-bottom: 1.2rem;
}

/* ===== カード詳細：新スキーマ ===== */
.card-keywords-parent {
  margin-top: 0.4rem;
  opacity: 0.85;
}
.card-keywords-parent span {
  background: var(--paper-2);
}
.child-messages .child-message {
  border-left: 3px solid var(--card-accent, var(--accent));
  padding: 0.4rem 0.8rem;
  margin: 0.6rem 0;
  background: rgba(255,255,255,0.3);
}

/* ===== 表紙画像 ===== */
.cover-image {
  margin: 0 auto 1.5rem;
  max-width: 480px;
}
.cover-image img {
  width: 100%;
  height: auto;
  display: block;
}