/* Tianmu Wiki — Parchment Aesthetic (matching tianmu.org) */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Playfair+Display:wght@400;600;700;800&family=UnifrakturMaguntia&family=Zen+Old+Mincho:wght@400;700&display=swap');

:root {
  --paper-light: #f5eed8;
  --paper-mid: #f0e6d0;
  --paper-dark: #ebe0c8;
  --paper-rule: #c8b898;
  --paper-rule-dk: #b8a888;
  --ink-black: #1a1208;
  --ink-dark: #3a2a1a;
  --ink-mid: #5a4a30;
  --ink-light: #8a7a60;
  --gold: #c8943e;
  --gold-bright: #d4a03a;
  --gold-dim: #9a8340;
  --accent: #c45a2c;
  --code-bg: rgba(26, 18, 8, 0.06);
  --font-body: 'EB Garamond', serif;
  --font-headline: 'Playfair Display', serif;
  --font-blackletter: 'UnifrakturMaguntia', cursive;
  --font-mono: ui-monospace, SFMono-Regular, 'Courier New', monospace;
  --font-cjk: 'Zen Old Mincho', serif;
  --max-w: 860px;
  --sidebar-w: 240px;
  --paper-max-w: 1100px;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--paper-light);
  color: var(--ink-dark);
  font-family: var(--font-body);
  line-height: 1.72;
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────── */
header {
  position: sticky; top: 0; z-index: 100;
  background: var(--ink-black);
  padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 48px;
}
header .logo {
  font-family: var(--font-blackletter);
  font-size: 1.25rem;
  color: var(--gold);
  cursor: pointer;
  text-decoration: none;
}
header .logo span { color: var(--paper-rule); font-family: var(--font-body); font-size: 0.85rem; }
header nav { display: flex; gap: 1.5rem; align-items: center; }
header nav a {
  font-family: var(--font-body); font-size: 0.82rem;
  color: var(--paper-rule); text-decoration: none;
  letter-spacing: 0.06em; text-transform: uppercase;
  transition: color 0.2s;
}
header nav a:hover, header nav a.active { color: var(--gold); }

#search-input {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  color: var(--paper-mid); font-family: var(--font-body); font-size: 0.82rem;
  padding: 0.25rem 0.7rem; border-radius: 3px; width: 190px;
  outline: none; transition: border-color 0.2s;
}
#search-input:focus { border-color: var(--gold); }
#search-input::placeholder { color: rgba(255,255,255,0.3); }

/* ── Browse View ────────────────────────────────── */
#browse-view {
  max-width: var(--paper-max-w);
  margin: 0 auto;
  padding: 2rem 2.5rem;
}

.era-ribbon {
  display: flex; gap: 3px; margin-bottom: 2rem;
  overflow-x: auto; padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--paper-rule);
}
.era-btn {
  font-family: var(--font-body); font-size: 0.78rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 0.45rem 1rem;
  background: transparent; border: none; border-bottom: 2px solid transparent;
  color: var(--ink-light); cursor: pointer;
  white-space: nowrap; transition: all 0.2s;
}
.era-btn:hover { color: var(--ink-dark); }
.era-btn.active {
  border-bottom-color: var(--gold);
  color: var(--ink-black);
  font-weight: 600;
}

.era-title {
  font-family: var(--font-headline); font-size: 2.2rem;
  font-weight: 700; color: var(--ink-black);
  margin-bottom: 0.15rem;
}
.era-subtitle {
  font-family: var(--font-body); font-size: 0.82rem;
  color: var(--ink-light); margin-bottom: 0.5rem;
}

/* Civilization groups */
.civ-group {
  margin-bottom: 2rem;
}
.civ-group-header {
  display: flex; align-items: baseline; gap: 0.8rem;
  border-bottom: 1px solid var(--paper-rule);
  padding-bottom: 0.3rem; margin-bottom: 0.8rem;
}
.civ-group-header h2 {
  font-family: var(--font-headline); font-size: 1.3rem;
  font-weight: 700; color: var(--ink-black);
}
.civ-group-header .civ-count {
  font-family: var(--font-body); font-size: 0.78rem;
  color: var(--ink-light);
}

.region-filter {
  display: flex; gap: 0.4rem; margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.region-btn {
  font-family: var(--font-body); font-size: 0.72rem;
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  background: transparent; border: 1px solid var(--paper-rule);
  color: var(--ink-light); cursor: pointer;
  border-radius: 2px; transition: all 0.2s;
}
.region-btn:hover, .region-btn.active {
  background: var(--ink-black);
  color: var(--paper-light);
  border-color: var(--ink-black);
}

.civ-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.8rem;
}

.civ-card {
  background: var(--paper-mid);
  border: 1px solid var(--paper-rule);
  padding: 1rem 1.2rem;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: 3px;
}
.civ-card:hover {
  background: var(--paper-dark);
  border-color: var(--paper-rule-dk);
  box-shadow: 0 2px 8px rgba(26,18,8,0.08);
}
.civ-card h3 {
  font-family: var(--font-headline); font-size: 1.1rem;
  font-weight: 700; color: var(--ink-black);
  margin-bottom: 0.1rem;
}
.civ-card .epoch {
  font-family: var(--font-body); font-size: 0.78rem;
  color: var(--gold); font-style: italic;
  margin-bottom: 0.35rem;
}
.civ-card .desc {
  font-size: 0.85rem; color: var(--ink-mid);
  line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.civ-card .tags {
  margin-top: 0.4rem;
  display: flex; gap: 0.25rem; flex-wrap: wrap;
}
.civ-card .tag {
  font-family: var(--font-body); font-size: 0.62rem;
  letter-spacing: 0.04em; text-transform: uppercase;
  padding: 0.1rem 0.35rem;
  background: var(--code-bg);
  color: var(--ink-light);
  border-radius: 2px;
}

/* ── Article View ───────────────────────────────── */
#article-view { display: none; }
#article-view.active {
  display: block;
  max-width: calc(var(--max-w) + var(--sidebar-w) + 3rem);
  margin: 0 auto;
  padding: 2rem 2.5rem 4rem;
}

.article-back {
  font-family: var(--font-body); font-size: 0.8rem;
  color: var(--ink-light); cursor: pointer;
  margin-bottom: 1.5rem; display: inline-block;
  text-decoration: none;
  transition: color 0.2s;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.article-back:hover { color: var(--gold); }

.article-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-w);
  gap: 3rem;
}

.article-main { max-width: var(--max-w); }

.article-header {
  margin-bottom: 2.2rem;
  border-bottom: 1px solid var(--paper-rule);
  padding-bottom: 1.3rem;
}
.article-header h1 {
  font-family: var(--font-headline); font-size: 2.6rem;
  font-weight: 800; color: var(--ink-black);
  line-height: 1.12; margin-bottom: 0.2rem;
}
.article-header .epoch-label {
  font-family: var(--font-body); font-size: 0.95rem;
  color: var(--gold); font-style: italic;
}
.article-header .region-label {
  font-family: var(--font-body); font-size: 0.75rem;
  color: var(--ink-light); margin-top: 0.2rem;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.article-header .article-tags {
  margin-top: 0.6rem;
  display: flex; gap: 0.3rem; flex-wrap: wrap;
}
.article-header .article-tag {
  font-family: var(--font-body); font-size: 0.62rem;
  letter-spacing: 0.05em; text-transform: uppercase;
  padding: 0.12rem 0.4rem;
  background: var(--code-bg);
  color: var(--ink-light);
  border-radius: 2px;
}

/* Fischer Sections */
.fischer-section {
  margin-bottom: 2.2rem;
}
.fischer-section .section-category {
  font-family: var(--font-body); font-size: 0.65rem;
  color: var(--ink-light);
  letter-spacing: 0.18em;
  text-transform: uppercase; margin-bottom: 0.12rem;
}
.fischer-section h2 {
  font-family: var(--font-headline); font-size: 1.45rem;
  font-weight: 700; color: var(--ink-black);
  margin-bottom: 0.7rem;
}
.fischer-section p {
  margin-bottom: 0.95rem;
  font-size: 1.02rem;
  line-height: 1.75;
  text-align: justify;
  hyphens: auto;
}

/* Quotes */
.fischer-quote {
  border-left: 3px solid var(--gold);
  padding: 0.7rem 1.2rem;
  margin: 1.2rem 0;
  background: rgba(200, 148, 62, 0.06);
  border-radius: 0 3px 3px 0;
}
.fischer-quote p {
  font-style: italic; color: var(--ink-dark);
  margin-bottom: 0.35rem;
  text-align: left;
  font-size: 1rem;
}
.fischer-quote cite {
  font-size: 0.72rem;
  color: var(--ink-light); font-style: normal;
}

/* Text Preview Callouts */
.text-preview {
  background: var(--paper-mid);
  border: 1px solid var(--paper-rule);
  border-left: 3px solid var(--accent);
  border-radius: 0 3px 3px 0;
  padding: 0.85rem 1.1rem;
  margin: 1.2rem 0;
  display: flex; gap: 0.9rem; align-items: flex-start;
}
.text-preview .tradition-badge {
  font-family: var(--font-body); font-size: 0.65rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
  padding-top: 0.12rem;
}
.text-preview .preview-body { flex: 1; }
.text-preview .preview-excerpt {
  font-style: italic; font-size: 0.92rem;
  color: var(--ink-dark); line-height: 1.55;
  margin-bottom: 0.4rem;
}
.text-preview .preview-link {
  font-family: var(--font-body); font-size: 0.72rem;
  color: var(--accent); text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.text-preview .preview-link:hover { color: var(--gold); }

/* ── Sidebar ────────────────────────────────────── */
.article-sidebar {
  position: sticky; top: 62px;
  align-self: start;
}
.sidebar-section {
  margin-bottom: 1.3rem;
}
.sidebar-section h4 {
  font-family: var(--font-body); font-size: 0.65rem;
  color: var(--ink-light);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.45rem;
  border-bottom: 1px solid var(--paper-rule);
  padding-bottom: 0.25rem;
}
.sidebar-section ul { list-style: none; }
.sidebar-section li {
  font-size: 0.78rem;
  color: var(--ink-mid); padding: 0.2rem 0;
}
.sidebar-section li a {
  color: var(--ink-mid); text-decoration: none;
  transition: color 0.2s;
}
.sidebar-section li a:hover { color: var(--gold); }
.sidebar-section li strong {
  color: var(--ink-dark);
  font-weight: 600;
}
.sidebar-section .figure-role {
  font-size: 0.68rem; color: var(--ink-light);
}

/* Section ToC in sidebar */
.sidebar-toc li {
  cursor: pointer; transition: color 0.2s;
  padding: 0.18rem 0;
}
.sidebar-toc li:hover { color: var(--gold); }

/* ── Search Results ─────────────────────────────── */
#search-results {
  display: none;
  max-width: var(--paper-max-w);
  margin: 0 auto;
  padding: 2rem 2.5rem;
}
#search-results.active { display: block; }
#search-results h2 {
  font-family: var(--font-headline); font-size: 1.5rem;
  color: var(--ink-black); margin-bottom: 1.3rem;
}

/* ── Responsive ─────────────────────────────────── */
/* ── Tongues View ────────────────────────────────── */
#tongues-view {
  display: none;
  max-width: var(--paper-max-w);
  margin: 0 auto;
  padding: 2rem 2.5rem;
}

#tongue-article-view {
  display: none;
}
#tongue-article-view.active {
  display: block;
  max-width: calc(var(--max-w) + var(--sidebar-w) + 3rem);
  margin: 0 auto;
  padding: 2rem 2.5rem 4rem;
}

/* Tongue body typography */
.tongue-body {
  font-family: var(--font-cjk), var(--font-body);
}
.tongue-body h2 {
  font-family: var(--font-headline); font-size: 1.45rem;
  font-weight: 700; color: var(--ink-black);
  margin: 2rem 0 0.7rem;
  border-bottom: 1px solid var(--paper-rule);
  padding-bottom: 0.3rem;
}
.tongue-body h3 {
  font-family: var(--font-headline); font-size: 1.15rem;
  font-weight: 600; color: var(--ink-dark);
  margin: 1.5rem 0 0.5rem;
}
.tongue-body p {
  margin-bottom: 0.9rem;
  font-size: 1.35rem;
  line-height: 1.85;
  text-align: justify;
  hyphens: auto;
  font-family: var(--font-cjk), var(--font-body);
}
.tongue-body a {
  color: var(--gold); text-decoration: none;
  border-bottom: 1px solid var(--paper-rule);
  transition: border-color 0.2s;
}
.tongue-body a:hover { border-color: var(--gold); }

/* New vocabulary highlighting — cinnabar red, the color of Chinese seal stamps */
.tongue-body strong {
  color: #b8432f;
  font-weight: 700;
}

.tongue-intro {
  border-left: 3px solid var(--gold);
  padding: 0.8rem 1.2rem;
  margin: 0 0 1.5rem;
  background: rgba(200, 148, 62, 0.06);
  border-radius: 0 3px 3px 0;
}
.tongue-intro p {
  font-style: italic; color: var(--ink-dark);
  margin: 0; font-size: 0.95rem; line-height: 1.65;
}

.tongue-rule {
  border: none;
  border-top: 1px solid var(--paper-rule);
  margin: 1.5rem 0;
}

/* Tables */
.tongue-table-wrap {
  overflow-x: auto;
  margin: 1rem 0;
}
.tongue-table {
  border-collapse: collapse;
  font-size: 0.85rem;
  width: 100%;
}
.tongue-table th {
  background: var(--paper-mid);
  font-weight: 600;
  text-align: left;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--paper-rule);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
}
.tongue-table td {
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--paper-rule);
  vertical-align: top;
}
.tongue-table tr:nth-child(even) td {
  background: rgba(200, 148, 62, 0.03);
}

/* Code blocks */
.tongue-body pre {
  background: var(--paper-mid);
  border: 1px solid var(--paper-rule);
  border-radius: 3px;
  padding: 0.8rem 1rem;
  overflow-x: auto;
  margin: 1rem 0;
  font-size: 0.82rem;
  line-height: 1.6;
}
.tongue-body code {
  font-family: var(--font-mono);
}
.inline-code {
  background: var(--paper-mid);
  padding: 0.1rem 0.35rem;
  border-radius: 2px;
  font-size: 0.88em;
  font-family: var(--font-mono);
}

/* ── Curriculum Navigation ─────────────────────── */
.curriculum-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 2px solid var(--paper-rule);
  margin: 1.2rem 0 1.8rem;
  padding: 0;
}
.curriculum-tab {
  font-family: var(--font-body);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-light);
  text-decoration: none;
  padding: 0.6rem 0.9rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color 0.2s, border-color 0.2s;
  cursor: pointer;
  white-space: nowrap;
}
.curriculum-tab:hover {
  color: var(--ink-dark);
}
.curriculum-tab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
  font-weight: 600;
}

/* ── Lesson Grid ──────────────────────────────── */
.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin: 1.2rem 0;
}
.lesson-card {
  background: var(--paper-mid);
  border: 1px solid var(--paper-rule);
  border-radius: 4px;
  padding: 1.1rem 1.3rem;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.lesson-card:hover {
  border-color: var(--gold);
  box-shadow: 0 2px 8px rgba(200, 148, 62, 0.12);
}
.lesson-card .lesson-num {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.lesson-card h3 {
  font-family: var(--font-headline);
  font-size: 1.1rem;
  color: var(--ink-black);
  margin-bottom: 0.3rem;
}
.lesson-card .lesson-subtitle {
  font-style: italic;
  color: var(--ink-mid);
  font-size: 0.88rem;
  margin-bottom: 0.4rem;
}
.lesson-card .lesson-grammar {
  font-size: 0.78rem;
  color: var(--ink-light);
  margin-bottom: 0.3rem;
}
.lesson-card .lesson-signs {
  font-size: 0.78rem;
  color: var(--gold-dim);
  font-family: var(--font-mono);
}

/* ── Lesson Header & Meta ─────────────────────── */
.lesson-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--paper-rule);
}
.lesson-back-link {
  font-size: 0.82rem;
  color: var(--gold);
  text-decoration: none;
  font-weight: 500;
}
.lesson-back-link:hover { text-decoration: underline; }
.lesson-label {
  font-size: 0.78rem;
  color: var(--ink-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.lesson-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.lesson-meta-badge {
  background: rgba(200, 148, 62, 0.1);
  border: 1px solid var(--paper-rule);
  border-radius: 3px;
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  color: var(--ink-mid);
}

/* ── Lesson Prev/Next Nav ─────────────────────── */
.lesson-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 2px solid var(--paper-rule);
}
.lesson-nav-btn {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--gold);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--paper-rule);
  border-radius: 3px;
  transition: background 0.2s, border-color 0.2s;
}
.lesson-nav-btn:hover {
  background: rgba(200, 148, 62, 0.08);
  border-color: var(--gold);
}

/* ── Dictionary ────────────────────────────────── */
.dict-search-bar {
  display: flex;
  gap: 0.8rem;
  margin: 1rem 0 1.5rem;
}
.dict-search-bar input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--paper-rule);
  border-radius: 3px;
  background: var(--paper-light);
  color: var(--ink-dark);
}
.dict-search-bar input:focus {
  outline: none;
  border-color: var(--gold);
}
.dict-search-bar select {
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--paper-rule);
  border-radius: 3px;
  background: var(--paper-light);
  color: var(--ink-dark);
}
.dict-entry {
  border-bottom: 1px solid var(--paper-rule);
  padding: 1rem 0;
}
.dict-entry:last-child { border-bottom: none; }
.dict-word {
  margin-bottom: 0.3rem;
}
.dict-cuneiform {
  font-size: 1.4rem;
  margin-right: 0.5rem;
  vertical-align: middle;
}
.dict-word strong {
  font-size: 1.1rem;
  color: var(--ink-black);
  font-family: var(--font-headline);
}
.dict-pos {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-light);
  margin-left: 0.4rem;
  background: var(--paper-mid);
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
}
.dict-meaning {
  font-size: 1rem;
  color: var(--ink-dark);
  margin-bottom: 0.3rem;
  font-weight: 500;
}
.dict-akk {
  font-size: 0.82rem;
  color: var(--ink-mid);
  margin-bottom: 0.2rem;
}
.dict-example {
  font-size: 0.85rem;
  color: var(--ink-mid);
  font-style: italic;
  margin-bottom: 0.2rem;
  padding-left: 0.8rem;
  border-left: 2px solid var(--paper-rule);
}
.dict-notes {
  font-size: 0.82rem;
  color: var(--ink-light);
  line-height: 1.55;
  margin-top: 0.3rem;
}
.dict-lesson {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--gold-dim);
  margin-top: 0.3rem;
}

/* ── Etymological Dictionary (Proto-Nostratic etc.) ───── */
.etym-entry {
  padding: 1.2rem 0;
}
.etym-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}
.etym-root {
  font-size: 1.3rem;
  font-weight: 700;
  font-family: var(--font-headline);
  color: var(--ink-black);
}
.etym-meaning {
  font-size: 1.05rem;
  color: var(--ink-dark);
  font-style: italic;
}
.etym-badge {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
  background: var(--paper-mid);
  color: var(--ink-light);
}
.etym-core {
  background: #e8d5a3;
  color: #6b4c1e;
}
.etym-branches {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0.5rem 0 0.5rem 0.3rem;
  padding-left: 0.8rem;
  border-left: 2px solid var(--paper-rule);
}
.etym-branch-head {
  font-size: 0.88rem;
  color: var(--ink-dark);
  margin-bottom: 0.15rem;
}
.etym-proto-form {
  font-family: var(--font-headline);
  color: var(--ink-black);
  font-weight: 600;
}
.etym-proto-meaning {
  font-style: italic;
  color: var(--ink-mid);
  font-size: 0.85rem;
}
.etym-descendants {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.8rem;
  padding-left: 1rem;
  margin-bottom: 0.2rem;
}
.etym-desc {
  font-size: 0.82rem;
  color: var(--ink-mid);
  line-height: 1.5;
}
.etym-desc em {
  color: var(--ink-light);
  font-size: 0.76rem;
  margin-right: 0.15rem;
}
.etym-desc strong {
  color: var(--ink-dark);
  font-weight: 600;
}
.etym-sources {
  font-size: 0.72rem;
  color: var(--ink-light);
  margin-top: 0.4rem;
  letter-spacing: 0.02em;
}

/* ── Tianmu Language System — Color Coding ───── */
.s-noun { color: #b8860b; font-weight: 600; }          /* dark gold — things */
.s-verb { color: #2e5fa1; font-weight: 600; }          /* deep blue — actions */
.s-adj { color: #3a7a3a; font-weight: 600; }           /* forest green — qualities */
.s-case { color: #a04030; font-weight: 500; }          /* rust — grammar glue */
.s-poss { color: #7b4baa; font-weight: 500; }          /* purple — mine/yours/his */
.s-neg { color: #cc3333; font-weight: 600; }           /* red — negation */
.s-modal { color: #cc6600; font-weight: 600; }         /* orange — mood (may/don't/let us) */
.s-name { font-weight: 600; }                           /* bold only — known referents */

/* Conversation format */
.s-conv { margin: 1.5rem 0; }
.s-speaker {
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-light);
  margin-bottom: 0.2rem;
}
.s-line {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 0.8rem;
  padding-left: 1rem;
  border-left: 2px solid var(--paper-rule);
}
.s-line-b { border-left-color: var(--gold); }

/* Color legend */
.s-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  padding: 0.8rem 1rem;
  background: var(--paper-mid);
  border-radius: 4px;
  margin: 1rem 0 1.5rem;
  font-size: 0.78rem;
}
.s-legend span { display: flex; align-items: center; gap: 0.3rem; }

/* ── Sign List ─────────────────────────────────── */
.sign-entry {
  border-bottom: 1px solid var(--paper-rule);
  padding: 1rem 0;
}
.sign-entry:last-child { border-bottom: none; }
.sign-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.4rem;
}
.sign-cuneiform {
  font-size: 2.2rem;
  line-height: 1;
  min-width: 2.5rem;
  text-align: center;
}
.sign-name {
  font-family: var(--font-headline);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink-black);
}
.sign-freq {
  font-size: 0.7rem;
  color: var(--ink-light);
  letter-spacing: 0.04em;
  margin-left: auto;
}
.sign-values {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.3rem;
}
.sign-value {
  background: rgba(200, 148, 62, 0.1);
  border: 1px solid var(--paper-rule);
  border-radius: 3px;
  padding: 0.2rem 0.5rem;
  font-size: 0.82rem;
  color: var(--ink-mid);
}

@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
    border-top: 1px solid var(--paper-rule);
    padding-top: 1.3rem;
  }
  header { padding: 0 1rem; }
  #browse-view, #article-view { padding: 1.5rem 1rem; }
  .article-header h1 { font-size: 2rem; }
}

@media (max-width: 600px) {
  .civ-grid { grid-template-columns: 1fr; }
  .era-ribbon { gap: 0; }
  .era-btn { padding: 0.35rem 0.6rem; font-size: 0.7rem; }
  #search-input { width: 130px; }
}

/* ══════════════════════════════════════════════════════ */
/* ── Interactive Exercise Engine ────────────────────── */
/* ══════════════════════════════════════════════════════ */

.exercise-section {
  margin-top: 2rem;
}

.exercise-intro {
  color: var(--ink-light);
  font-style: italic;
  margin-bottom: 1rem;
}

.exercise-score-bar {
  background: var(--paper-mid);
  border: 1px solid var(--paper-rule);
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-mid);
  margin-bottom: 1.5rem;
  display: inline-block;
}
.exercise-score-bar #ex-score {
  font-weight: 700;
  color: var(--gold);
  font-size: 1.1rem;
}

.ex-card {
  background: var(--paper-light);
  border: 1px solid var(--paper-rule);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
  transition: border-color 0.2s;
}
.ex-card[data-answered="true"] {
  border-color: var(--paper-rule-dk);
}

.ex-badge {
  display: inline-block;
  background: var(--code-bg);
  color: var(--ink-light);
  font-size: 0.7rem;
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.5rem;
}

.ex-prompt {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink-dark);
  margin-bottom: 0.75rem;
}

.ex-sign {
  font-family: var(--font-cjk);
  font-size: 3.5rem;
  line-height: 1.2;
  text-align: center;
  color: var(--ink-black);
  margin: 0.5rem 0 1rem;
}

.ex-display {
  font-family: var(--font-body);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--ink-black);
  text-align: center;
  margin: 0.5rem 0 1rem;
  letter-spacing: 0.02em;
}

.ex-opts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.ex-opt {
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--paper-mid);
  border: 1px solid var(--paper-rule);
  border-radius: 6px;
  padding: 0.5rem 1.2rem;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--ink-dark);
}
.ex-opt:hover:not(:disabled) {
  background: var(--paper-dark);
  border-color: var(--gold-dim);
}
.ex-opt:disabled {
  cursor: default;
  opacity: 0.85;
}
.ex-opt.ex-ok {
  background: #e8f5e1;
  border-color: #6a9f4a;
  color: #2d5a1e;
}
.ex-opt.ex-no {
  background: #fde8e8;
  border-color: #c45a5a;
  color: #7a2020;
}
.ex-opt.ex-sel {
  background: var(--paper-dark);
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200, 148, 62, 0.25);
}

.ex-input-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.ex-inp {
  flex: 1;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--paper-rule);
  border-radius: 6px;
  background: #fff;
  color: var(--ink-dark);
  outline: none;
  transition: border-color 0.15s;
}
.ex-inp:focus {
  border-color: var(--gold);
}
.ex-inp.ex-inp-ok {
  border-color: #6a9f4a;
  background: #f5faf0;
}
.ex-inp.ex-inp-no {
  border-color: #c45a5a;
  background: #fef5f5;
}

.ex-chk {
  font-family: var(--font-body);
  font-size: 0.85rem;
  background: var(--gold);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1.2rem;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}
.ex-chk:hover:not(:disabled) {
  background: var(--gold-bright);
}
.ex-chk:disabled {
  background: var(--ink-light);
  cursor: default;
}
.ex-chk-parse {
  margin-top: 0.5rem;
}

.ex-fb {
  margin-top: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-dark);
  background: var(--paper-mid);
  border-left: 3px solid var(--gold);
  line-height: 1.5;
}
.fb-ok {
  color: #3a7a20;
  font-weight: 700;
  margin-right: 0.3rem;
}
.fb-no {
  color: #a03030;
  font-weight: 700;
  margin-right: 0.3rem;
}

@media (max-width: 600px) {
  .ex-opts { flex-direction: column; }
  .ex-input-row { flex-direction: column; }
  .ex-sign { font-size: 2.5rem; }
  .ex-display { font-size: 1.1rem; }
}

/* ══════════════════════════════════════════════════════ */
/* ── Parsing Challenges ────────────────────────────── */
/* ══════════════════════════════════════════════════════ */

.parse-card {
  background: var(--paper-light);
  border: 1px solid var(--paper-rule);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.parse-title {
  font-family: var(--font-headline);
  font-size: 1.1rem;
  color: var(--ink-black);
  margin-bottom: 0.25rem;
}

.parse-source {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--ink-light);
  font-style: italic;
  margin-bottom: 1rem;
}

.parse-passage {
  background: #fff;
  border: 1px solid var(--paper-rule);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-cjk);
}

.parse-line {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--ink-black);
  letter-spacing: 0.01em;
}

.parse-reveal-btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  background: var(--gold);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1.5rem;
  cursor: pointer;
  transition: background 0.15s;
}
.parse-reveal-btn:hover {
  background: var(--gold-bright);
}

.parse-analysis {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--paper-rule);
}

.parse-translation {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink-dark);
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  background: var(--paper-mid);
  border-radius: 6px;
  border-left: 3px solid var(--gold);
  line-height: 1.6;
}

.parse-notes {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-mid);
  line-height: 1.6;
  margin-top: 0.75rem;
}