/* ============================================
   家族史サイト — 和の記念誌スタイル
   ============================================ */

:root {
  --washi: #f7f3ea;        /* 生成り（和紙） */
  --washi-deep: #efe7d6;   /* 少し濃い和紙 */
  --ink: #2f2a24;          /* 墨 */
  --ink-light: #6b6257;    /* 薄墨 */
  --accent: #8b3a2f;       /* 弁柄 */
  --line: #d9cfbc;         /* 罫線 */
  --white: #fffdf8;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--washi);
  background-image:
    radial-gradient(rgba(120, 100, 70, 0.04) 1px, transparent 1px),
    radial-gradient(rgba(120, 100, 70, 0.03) 1px, transparent 1px);
  background-size: 24px 24px, 36px 36px;
  background-position: 0 0, 12px 18px;
  color: var(--ink);
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  font-size: 16px;
  line-height: 2;
  -webkit-font-smoothing: antialiased;
}

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

/* ---------- ヘッダー ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(247, 243, 234, 0.92);
  padding: 0.8rem 1.2rem;
}

.site-header .inner {
  max-width: 62rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1.6rem;
}

.site-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  margin: 0;
}
.site-title a { color: var(--ink); }
.site-title a:hover { text-decoration: none; color: var(--accent); }

.site-nav {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 1.4rem;
  font-size: 0.88rem;
  letter-spacing: 0.12em;
}
.site-nav a { color: var(--ink-light); }
.site-nav a.current {
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
}

/* ---------- レイアウト ---------- */

main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2.5rem 1.4rem 4rem;
}

main.wide { max-width: 62rem; }

/* ---------- 見出し ---------- */

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: 0.15em;
  line-height: 1.6;
}

h1 {
  font-size: 1.7rem;
  margin: 0 0 0.6rem;
}

h2 {
  font-size: 1.25rem;
  margin: 3.2rem 0 1.2rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--line);
  position: relative;
}
h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 4rem;
  border-bottom: 1px solid var(--accent);
}

h3 {
  font-size: 1.05rem;
  margin: 2.4rem 0 0.8rem;
  color: var(--ink);
}

.subtitle {
  color: var(--ink-light);
  font-size: 0.92rem;
  letter-spacing: 0.1em;
  margin: 0 0 2rem;
}

/* ---------- ページ扉（各記事の冒頭） ---------- */

.page-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.page-hero .lead {
  font-size: 0.95rem;
  color: var(--ink-light);
  max-width: 32rem;
}

.tategaki-title {
  writing-mode: vertical-rl;
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  line-height: 1.9;
  min-height: 12em;
  margin: 0;
  color: var(--ink);
  flex-shrink: 0;
}

/* ---------- 書き起こし方針の但し書き ---------- */

.note {
  background: var(--washi-deep);
  border-left: 3px solid var(--accent);
  padding: 0.9rem 1.2rem;
  font-size: 0.86rem;
  line-height: 1.9;
  color: var(--ink-light);
  margin: 1.6rem 0;
}

/* ---------- 判読保留マーク ---------- */

.hold {
  display: inline-block;
  font-size: 0.8em;
  color: var(--ink-light);
  border: 1px dashed var(--ink-light);
  border-radius: 2px;
  padding: 0 0.5em;
  margin: 0 0.2em;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

/* ---------- 俳句（縦書き） ---------- */

.haiku-wrap {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow-x: auto;
  direction: rtl;
  margin: 2.2rem 0;
  padding: 1.6rem 1rem;
  background: var(--white);
  border: 1px solid var(--line);
}

.haiku {
  direction: ltr;
  writing-mode: vertical-rl;
  height: auto;
  margin: 0;
  font-size: 1.02rem;
  line-height: 2.6;
  letter-spacing: 0.22em;
}

.haiku p { margin: 0; white-space: nowrap; }

.haiku .author {
  font-size: 0.82rem;
  color: var(--ink-light);
}

/* ---------- 本文 ---------- */

.honbun p { margin: 0 0 1.6rem; text-align: justify; }

blockquote {
  margin: 1.8rem 0;
  padding: 0.2rem 1.4rem;
  border-left: 2px solid var(--line);
  color: var(--ink-light);
}

.signature {
  text-align: right;
  margin-top: 2.4rem;
  letter-spacing: 0.3em;
}

/* ---------- 関係図 ---------- */

.kankeizu {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 1.4rem 1.8rem;
  margin: 1.4rem 0;
  font-size: 0.94rem;
}
.kankeizu h3 { margin-top: 1rem; }
.kankeizu h3:first-child { margin-top: 0; }
.kankeizu ul { padding-left: 1.4rem; margin: 0.4rem 0; }
.kankeizu li { margin: 0.15rem 0; }
.kankeizu .banchi { color: var(--ink-light); font-size: 0.86rem; }

/* ---------- 年表 ---------- */

.timeline-wrap { overflow-x: auto; margin: 1.4rem 0; }

table.timeline {
  border-collapse: collapse;
  width: 100%;
  background: var(--white);
  font-size: 0.9rem;
  line-height: 1.8;
}
table.timeline th,
table.timeline td {
  border: 1px solid var(--line);
  padding: 0.45rem 0.8rem;
  vertical-align: top;
}
table.timeline th {
  background: var(--washi-deep);
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
table.timeline td.year,
table.timeline td.age { white-space: nowrap; text-align: right; }
table.timeline td.wareki { white-space: nowrap; }

/* ---------- 写真帖 ---------- */

.album {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.6rem;
  margin: 1.8rem 0;
}

.album figure {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 0.7rem;
  box-shadow: 0 2px 6px rgba(60, 45, 25, 0.08);
}

.album img {
  width: 100%;
  height: auto;
  display: block;
}

.album figcaption {
  font-size: 0.82rem;
  color: var(--ink-light);
  line-height: 1.8;
  padding-top: 0.6rem;
}
.album figcaption span { display: block; }

/* ---------- 原本アーカイブ（頁の複写一覧） ---------- */

.scan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.9rem;
  margin: 1.4rem 0;
}

.scan-grid a {
  display: block;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 0.4rem;
}
.scan-grid a:hover { border-color: var(--accent); }

.scan-grid img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  object-position: top;
  display: block;
}

.scan-grid .label {
  display: block;
  font-size: 0.72rem;
  color: var(--ink-light);
  text-align: center;
  padding-top: 0.3rem;
  letter-spacing: 0.05em;
}

/* ---------- トップページ ---------- */

.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.5rem;
}

.hero .tategaki-title {
  font-size: 2.3rem;
  min-height: 10em;
}

.hero .hero-haiku {
  writing-mode: vertical-rl;
  height: auto;
  white-space: nowrap;
  font-size: 1rem;
  letter-spacing: 0.25em;
  line-height: 2.6;
  color: var(--ink-light);
  margin: 0;
}

.intro {
  max-width: 38rem;
  margin: 0 auto 2rem;
  font-size: 0.98rem;
}

.book-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.8rem;
  margin: 2.5rem 0;
}

.book-card {
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 2px 8px rgba(60, 45, 25, 0.08);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease;
}
.book-card:hover {
  box-shadow: 0 4px 14px rgba(60, 45, 25, 0.16);
  text-decoration: none;
}

.book-card img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  object-position: center top;
  display: block;
  border-bottom: 1px solid var(--line);
}

.book-card .body { padding: 1rem 1.2rem 1.3rem; }

.book-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: 0.15em;
}

.book-card p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--ink-light);
}

/* ---------- 家系図（Mermaid） ---------- */

.mermaid-wrap {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 1.2rem 1rem;
  margin: 1.8rem 0 2.5rem;
  overflow-x: auto;
}

.mermaid-wrap pre.mermaid {
  margin: 0 auto;
  width: max-content;
  max-width: none;
  font-family: inherit;
  line-height: 1.4;
  visibility: visible;
}

/* ---------- 葉書 ---------- */

.hagaki {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 1.5rem 1.8rem;
  margin: 1.6rem 0;
  font-size: 0.94rem;
}
.hagaki h3 { margin-top: 0; }
.hagaki .keigu { text-align: right; letter-spacing: 0.3em; margin-bottom: 0; }

/* ---------- 奥付 ---------- */

.okuzuke {
  margin: 3rem auto 0;
  max-width: 26rem;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 1.4rem 1.8rem;
  font-size: 0.86rem;
  line-height: 2.1;
  color: var(--ink-light);
  text-align: center;
  letter-spacing: 0.12em;
}

/* ---------- フッター ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 1.4rem 2.6rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-light);
  letter-spacing: 0.1em;
  line-height: 2;
}

/* ---------- ページ内目次 ---------- */

.toc {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 1rem 1.6rem;
  font-size: 0.88rem;
  margin: 1.6rem 0 0;
}
.toc ul { margin: 0; padding-left: 1.4rem; }
.toc li { margin: 0.2rem 0; }

/* ---------- スマホ ---------- */

@media (max-width: 640px) {
  body { font-size: 15px; }
  .hero { gap: 1.6rem; padding: 2rem 0; }
  .hero .tategaki-title { font-size: 1.7rem; }
  .hero .hero-haiku { font-size: 0.88rem; }
  .page-hero { flex-direction: row-reverse; justify-content: flex-end; }
  .tategaki-title { font-size: 1.5rem; }
  .haiku { font-size: 0.94rem; }
  main { padding: 1.8rem 1rem 3rem; }
}