/* ——— Archival print: aged paper, iron-gall ink, oxblood accents ——— */

:root {
  --paper: #f4eee0;
  --paper-deep: #ece4d0;
  --ink: #2b2317;
  --ink-soft: #5a4f3d;
  --oxblood: #7b2d26;
  --rule: #c8bb9e;
  --rule-faint: #ddd3bc;
  --serif: "EB Garamond", Georgia, serif;
  --display: "IM Fell English", Georgia, serif;
  --display-sc: "IM Fell English SC", Georgia, serif;
}

* { box-sizing: border-box; }

html { font-size: 19px; }

body {
  margin: 0;
  font-family: var(--serif);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E"),
    radial-gradient(ellipse at 50% 0%, var(--paper) 60%, var(--paper-deep) 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ——— Landing ——— */

.landing {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.landing-rule {
  color: var(--oxblood);
  letter-spacing: 0.5em;
  margin: 0 0 1.5rem;
}

.landing h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 3rem;
  letter-spacing: 0.04em;
  margin: 0 0 0.75rem;
}

.landing-line {
  color: var(--ink-soft);
  font-style: italic;
  margin: 0 0 3.5rem;
}

.landing-nav a {
  font-family: var(--display-sc);
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.2rem;
  transition: color 0.25s, border-color 0.25s;
}

.landing-nav a:hover { color: var(--oxblood); border-color: var(--oxblood); }

/* ——— Masthead ——— */

.masthead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.4rem 1.5rem 1.1rem;
  border-bottom: 3px double var(--rule);
}

.masthead-home {
  font-family: var(--display-sc);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  color: var(--ink);
  text-decoration: none;
}

.masthead-home:hover { color: var(--oxblood); }

.masthead-year {
  font-style: italic;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

/* ——— Article sheet ——— */

.sheet {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.prose h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 2.3rem;
  line-height: 1.15;
  text-align: center;
  margin: 0 0 0.5rem;
}

.subtitle {
  text-align: center;
  font-style: italic;
  color: var(--ink-soft);
  margin: 0 0 0.5rem;
}

.ornament {
  text-align: center;
  color: var(--oxblood);
  letter-spacing: 0.5em;
  padding-left: 0.5em; /* recenters the spaced glyphs */
  margin: 1.6rem 0;
}

.prose h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.55rem;
  margin: 2.8rem 0 0.8rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--rule-faint);
}

.prose h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  margin: 2.2rem 0 0.6rem;
}

.prose h3 + p > em:first-child { color: var(--ink-soft); }

.prose p { margin: 0 0 1.1rem; }

.prose a { color: var(--oxblood); text-decoration-thickness: 1px; text-underline-offset: 3px; }

.prose blockquote {
  margin: 1.4rem 0;
  padding: 0.1rem 1.4rem;
  border-left: 3px solid var(--rule);
  font-style: italic;
  color: var(--ink-soft);
}

.prose hr {
  border: none;
  text-align: center;
  margin: 2.5rem 0;
}

.prose hr::after {
  content: "⁂";
  color: var(--oxblood);
  letter-spacing: 0.5em;
}

.prose ul, .prose ol { padding-left: 1.4rem; margin: 0 0 1.1rem; }
.prose li { margin-bottom: 0.35rem; }

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 1.5rem 0;
  border-top: 3px double var(--rule);
  border-bottom: 3px double var(--rule);
}

.prose th {
  font-family: var(--display-sc);
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--rule);
}

.prose td {
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--rule-faint);
  vertical-align: top;
}

.prose tr:last-child td { border-bottom: none; }

.prose code {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.78em;
  background: var(--paper-deep);
  padding: 0.1em 0.35em;
  border-radius: 2px;
}

.prose pre {
  background: var(--paper-deep);
  border: 1px solid var(--rule-faint);
  padding: 1rem 1.2rem;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.5;
}

.prose pre code { background: none; padding: 0; }

/* descent lines rendered as plain pre blocks read better unboxed */
.prose pre.descent {
  background: none;
  border: none;
  border-left: 3px solid var(--rule);
  font-family: var(--serif);
  font-size: 0.95rem;
}

/* ——— Lineage diagram ——— */

.lineage-wrap { overflow-x: auto; margin: 1.8rem 0; }

.lineage { display: block; width: 100%; min-width: 720px; height: auto; }

.lineage text { font-family: var(--serif); font-size: 15px; font-weight: 500; fill: var(--ink); }
.lineage .d { font-size: 12px; font-style: italic; font-weight: 400; fill: var(--ink-soft); }
.lineage .m { font-size: 12px; font-style: italic; font-weight: 400; fill: var(--ink-soft); }
.lineage .hl { fill: var(--oxblood); font-weight: 600; }
.lineage .founder { font-size: 13.5px; font-style: italic; fill: var(--ink-soft); }
.lineage .cap { font-size: 11.5px; font-style: italic; font-weight: 400; fill: var(--ink-soft); }
.lineage line { stroke: var(--rule); stroke-width: 1.5; }
.lineage .box { fill: none; stroke: var(--oxblood); stroke-width: 1; stroke-dasharray: 4 4; opacity: 0.7; }
.lineage .svc { fill: none; stroke: var(--oxblood); stroke-width: 1; stroke-dasharray: 4 4; opacity: 0.7; }

/* ——— Table of contents ——— */

.toc {
  border: 1px solid var(--rule);
  padding: 1.1rem 1.5rem;
  margin: 0 0 2.2rem;
  background: rgba(255, 252, 244, 0.45);
}

.toc-label {
  font-family: var(--display-sc);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--oxblood);
}

.toc ul { list-style: none; padding-left: 0; margin: 0.6rem 0 0; column-count: 2; column-gap: 2rem; }
.toc li { margin-bottom: 0.3rem; break-inside: avoid; }
.toc a { color: var(--ink); text-decoration: none; border-bottom: 1px dotted var(--rule); }
.toc a:hover { color: var(--oxblood); }

@media (max-width: 600px) {
  html { font-size: 17.5px; }
  .toc ul { column-count: 1; }
}

/* ——— Index contents list ——— */

.contents-list {
  display: grid;
  gap: 0.9rem;
  margin-top: 2.4rem;
}

.contents-item {
  display: block;
  text-decoration: none;
  border: 1px solid var(--rule);
  padding: 1.05rem 1.3rem;
  background: rgba(255, 252, 244, 0.45);
  transition: border-color 0.25s, transform 0.25s;
}

.contents-item:hover {
  border-color: var(--oxblood);
  transform: translateX(4px);
}

.contents-title {
  display: block;
  font-family: var(--display);
  font-size: 1.25rem;
  color: var(--ink);
}

.contents-sub {
  display: block;
  font-style: italic;
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-top: 0.15rem;
}

/* ——— Colophon ——— */

.colophon {
  margin-top: 3.5rem;
  text-align: center;
  font-style: italic;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.colophon a { color: var(--oxblood); }
.colophon p { margin: 0.3rem 0; }