:root {
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --font-sans: 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Courier New', monospace;
  --navy: #1a2f4a;
  --navy-light: #243d5c;
  --crimson: #8b1a1a;
  --gold: #c9a84c;
  --bg: #fdfcf8;
  --text: #1a1a1a;
  --muted: #6b6b6b;
  --border: #e0ddd5;
  --card-bg: #ffffff;
  --text-secondary: #555;
  --text-tertiary: #888;
  --surface: #f8f6f0;
  --surface-alt: #f0ede5;
  --border-light: #ccc;
  --border-cite: #e8e5dd;
  --placeholder-bg: #f0ede6;
  --placeholder-text: #aaa;
  --placeholder-border: #ddd;
  --lang-fr-bg: #dbeafe;
  --lang-fr-text: #1e40af;
  --lang-en-bg: #dcfce7;
  --lang-en-text: #166534;
  --lang-de-bg: #fef9c3;
  --lang-de-text: #854d0e;
  --lang-es-bg: #fde8d8;
  --lang-es-text: #9a3412;
  --lang-it-bg: #fce7f3;
  --lang-it-text: #9d174d;
  --header-bg: #1a2f4a;
  --header-text: white;
  --header-link: rgba(255,255,255,0.85);
  --header-border: rgba(255,255,255,0.2);
  --header-btn-border: rgba(255,255,255,0.3);
  --header-btn-text: rgba(255,255,255,0.7);
  --footer-text: rgba(255,255,255,0.6);
  --footer-heading: rgba(255,255,255,0.9);
  --footer-border: rgba(255,255,255,0.15);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.08);
  --header-hover-bg: rgba(255,255,255,0.1);
  --surface-historical: #edeae0;
  --success: #166534;
}
[data-theme="dark"] {
  --bg: #121520;
  --text: #d8d8d8;
  --muted: #999;
  --border: #2e3348;
  --card-bg: #1a1e2e;
  --text-secondary: #b0b0b0;
  --text-tertiary: #8a8a8a;
  --surface: #1e2233;
  --surface-alt: #242840;
  --border-light: #3a3e52;
  --border-cite: #2e3348;
  --placeholder-bg: #1e2233;
  --placeholder-text: #666;
  --placeholder-border: #2e3348;
  --crimson: #dc6060;
  --gold: #d4b45c;
  --navy: #8faabe;
  --navy-light: #a0b8ca;
  --lang-fr-bg: #1e2a4a;
  --lang-fr-text: #7cacf8;
  --lang-en-bg: #1a2e24;
  --lang-en-text: #6bcf8a;
  --lang-de-bg: #2e2a1a;
  --lang-de-text: #d4b45c;
  --lang-es-bg: #2e221a;
  --lang-es-text: #e8a060;
  --lang-it-bg: #2e1a28;
  --lang-it-text: #e880b0;
  --header-bg: #0d1018;
  --header-text: #d8d8d8;
  --header-link: rgba(216,216,216,0.85);
  --header-border: rgba(216,216,216,0.15);
  --header-btn-border: rgba(216,216,216,0.25);
  --header-btn-text: rgba(216,216,216,0.6);
  --footer-text: rgba(216,216,216,0.65);
  --footer-heading: rgba(216,216,216,0.85);
  --footer-border: rgba(216,216,216,0.1);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.3);
  --header-hover-bg: rgba(255,255,255,0.12);
  --surface-historical: #1a1c28;
  --success: #6bcf8a;
}
* { box-sizing: border-box; }
body {
  font-family: var(--font-serif);
  color: var(--text);
  background: var(--bg);
  margin: 0;
  line-height: 1.7;
}
/* ── Header ── */
header {
  background: var(--header-bg);
  color: var(--header-text);
  padding: 0;
  border-bottom: 3px solid var(--gold);
}
.header-inner {
  max-width: 68.75rem;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-title { margin: 0; }
.site-title a {
  color: var(--header-text);
  text-decoration: none;
  font-size: 2rem;
  font-weight: normal;
  letter-spacing: 3px;
}
.site-subtitle {
  color: var(--gold);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  display: block;
  margin-top: 0.1rem;
}
nav {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
}
nav a {
  color: var(--header-link);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 0.35rem 0.7rem;
  border-radius: 3px;
  font-family: var(--font-sans);
  transition: background 0.15s;
}
nav a:hover { background: var(--header-hover-bg); color: var(--header-text); }
.lang-switcher {
  display: flex;
  gap: 0.2rem;
  margin-left: 0.8rem;
  border-left: 1px solid var(--header-border);
  padding-left: 0.8rem;
}
.lang-btn {
  background: none;
  border: 1px solid var(--header-btn-border);
  color: var(--header-btn-text);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.15s;
}
.lang-btn:hover, .lang-btn.active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--header-bg);
}
.search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.875rem;
  height: 1.875rem;
  border: 1px solid var(--header-btn-border);
  border-radius: 3px;
  color: var(--header-btn-text) !important;
  margin-left: 0.5rem;
  padding: 0 !important;
  text-decoration: none !important;
  transition: all 0.15s;
}
.search-btn:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--header-bg) !important;
}
/* ── Theme toggle ── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.875rem;
  height: 1.875rem;
  border: 1px solid var(--header-btn-border);
  border-radius: 3px;
  color: var(--header-btn-text);
  background: none;
  cursor: pointer;
  padding: 0;
  transition: all 0.15s;
  margin-left: 0.3rem;
}
.theme-toggle:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--header-bg);
}
.theme-toggle .icon-sun,
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
/* ── Main ── */
main {
  max-width: 68.75rem;
  margin: 2.5rem auto;
  padding: 0 2rem;
}
/* ── Typography ── */
h1, h2, h3, h4 {
  font-weight: normal;
  color: var(--navy);
}
h1 { font-size: 1.8rem; }
h2 {
  font-size: 1.2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
  margin-top: 2rem;
}
h3 { font-size: 1.05rem; }
a { color: var(--crimson); text-decoration: none; }
a:hover { text-decoration: underline; }
/* ── Page headings ── */
.page-title {
  font-size: 1.8rem;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 0.5rem;
}
.section-heading {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-tertiary);
  font-family: var(--font-sans);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}
/* ── Cards ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.2rem 1.5rem;
  margin-bottom: 1rem;
}
.card-title { margin: 0 0 0.3rem; font-size: 1.05rem; }
.card-sm { padding: 0.7rem 1.2rem; margin-bottom: 0; }
/* ── Article card ── */
.article-card { margin-bottom: 0; }
.article-card.lang-border-fr { border-left: 3px solid var(--lang-fr-text); }
.article-card.lang-border-en { border-left: 3px solid var(--lang-en-text); }
.article-card.lang-border-it { border-left: 3px solid var(--lang-it-text); }
.article-card.lang-border-de { border-left: 3px solid var(--lang-de-text); }
.article-card.lang-border-es { border-left: 3px solid var(--lang-es-text); }
.article-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}
.article-card-header .lang-badge { flex-shrink: 0; margin-top: 0.2rem; }
.article-card-body { flex: 1; min-width: 0; }
.article-card .card-meta { margin-top: 0.25rem; }
.pdf-link {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-sans);
  text-decoration: none;
  margin-left: 0.3rem;
}
.preprint-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-sans);
  margin-left: 0.3rem;
}
.article-volume-info {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin: 0.2rem 0 0;
}
/* ── Citation ── */
.cite-section {
  padding: 1rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-bottom: 2rem;
}
.cite-label {
  font-size: 0.8rem;
  font-family: var(--font-sans);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.8rem;
}
.cite-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.6rem;
}
.cite-tab, .card-cite-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  cursor: pointer;
  color: var(--text-tertiary);
}
.cite-tab.active, .card-cite-tab.active {
  border-bottom-color: var(--navy);
  color: var(--navy);
  font-weight: bold;
}
.cite-block, .card-cite-block {
  font-size: 0.85rem;
  line-height: 1.5;
  padding: 0.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border-cite);
  border-radius: 3px;
  cursor: pointer;
}
pre.cite-block, pre.card-cite-block {
  font-size: 0.78rem;
  white-space: pre-wrap;
  font-family: var(--font-mono);
  margin: 0;
}
.cite-copied, .card-cite-copied {
  display: none;
  font-size: 0.72rem;
  color: var(--success);
  margin: 0.3rem 0 0;
  font-family: var(--font-sans);
}
.cite-toggle-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-tertiary);
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  cursor: pointer;
  font-family: var(--font-sans);
}
/* ── Grid layouts ── */
.article-grid { display: grid; gap: 1rem; }
.contributor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.board-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
/* ── Keyword filters ── */
.keyword-filters { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.2rem; }
.type-filter { display: flex; gap: 1rem; align-items: center; }
.type-filter-label { display: flex; align-items: center; gap: 0.3rem; font-size: 0.85rem; color: var(--text-secondary); cursor: pointer; }
.type-filter-label input[type="checkbox"] { accent-color: var(--gold); cursor: pointer; }
/* ── Language filter ── */
.lang-filter { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.lang-filter-btn {
  padding: 0.3rem 0.7rem;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  text-decoration: none;
  color: var(--text-secondary);
  background: var(--surface);
  transition: border-color 0.15s, color 0.15s;
}
.lang-filter-btn:hover { border-color: var(--gold); color: var(--text); }
.lang-filter-btn.active { border-color: var(--gold); color: var(--text); font-weight: 600; }
.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
/* ── View toggle ── */
.view-toggle {
  display: inline-flex;
  gap: 0.2rem;
}
.view-toggle-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-tertiary);
  padding: 0.35rem;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.view-toggle-btn:hover {
  border-color: var(--gold);
  color: var(--text);
}
.view-toggle-btn.active {
  background: var(--navy);
  border-color: var(--navy);
  color: white;
}
/* ── List mode: volumes ── */
[data-view="list"] .volume-grid {
  gap: 0;
}
[data-view="list"] .volume-card {
  padding: 0.5rem 0.8rem;
  border-radius: 0;
  border-left: none !important;
  border-top: none;
  border-right: none;
  border-bottom: 1px solid var(--border);
  background: none;
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
}
[data-view="list"] .volume-card:last-child {
  border-bottom: none;
}
[data-view="list"] .volume-card h3 {
  margin: 0;
  font-size: 0.95rem;
}
[data-view="list"] .volume-card .card-meta {
  margin: 0;
}
[data-view="list"] .volume-card-cover,
[data-view="list"] .volume-card-desc,
[data-view="list"] .volume-card-articles,
[data-view="list"] .volume-card-btn {
  display: none !important;
}
[data-view="list"] .volume-card .special-subtitle {
  display: none;
}
[data-view="list"] .volume-card .volume-editors {
  display: none !important;
}
[data-view="list"] .volume-card .volume-editors-inline {
  display: inline !important;
}
/* ── List mode: articles ── */
[data-view="list"] .article-grid {
  gap: 0;
}
[data-view="list"] .article-card {
  padding: 0.5rem 0.8rem;
  border-radius: 0;
  border-left: none !important;
  border-top: none;
  border-right: none;
  border-bottom: 1px solid var(--border);
  background: none;
}
[data-view="list"] .article-card:last-child {
  border-bottom: none;
}
[data-view="list"] .article-card .card-title {
  font-size: 0.95rem;
  margin: 0;
}
[data-view="list"] .article-card .card-meta {
  font-size: 0.8rem;
}
[data-view="list"] .article-card-abstract,
[data-view="list"] .article-card-cite,
[data-view="list"] .article-card-keywords,
[data-view="list"] .article-card-translation {
  display: none !important;
}
/* ── Homepage: latest articles always in list mode ── */
.home-latest-articles .article-card {
  padding: 0.5rem 0.8rem;
  border-radius: 0;
  border-left: none !important;
  border-top: none;
  border-right: none;
  border-bottom: 1px solid var(--border);
  background: none;
}
.home-latest-articles .article-card:last-child {
  border-bottom: none;
}
.home-latest-articles .article-card .card-title {
  font-size: 0.95rem;
  margin: 0;
}
.home-latest-articles .article-card .card-meta {
  font-size: 0.8rem;
}
.home-latest-articles .article-card-abstract,
.home-latest-articles .article-card-cite,
.home-latest-articles .article-card-keywords,
.home-latest-articles .article-card-translation {
  display: none !important;
}
/* ── List mode: contributors ── */
[data-view="list"] .contributor-grid {
  grid-template-columns: repeat(3, 1fr);
}
[data-view="list"] .contributor-grid > * {
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 0.35rem 0;
  margin: 0;
}
[data-view="list"] .contributor-grid > *:hover {
  box-shadow: none;
  border-bottom-color: var(--gold);
}
[data-view="list"] .contributor-grid .card-meta {
  display: none;
}
/* ── List mode: editorial board ── */
[data-view="list"] .board-grid {
  display: block;
  columns: 2;
  column-gap: 2rem;
}
[data-view="list"] .board-grid > * {
  break-inside: avoid;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 0.35rem 0;
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
/* ── List mode: keywords ── */
[data-view="list"] .keyword-cloud {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
[data-view="list"] .keyword-cloud > * {
  display: flex;
  justify-content: space-between;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 0.35rem 2.5rem 0.35rem 0.3rem;
}
/* ── Search form ── */
.filter-label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.3rem;
  font-family: var(--font-sans);
}
.filter-select {
  width: 100%;
  padding: 0.4rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-size: 0.9rem;
  background: var(--card-bg);
}
.keyword-tag {
  font-size: 0.72rem;
  padding: 0.1rem 0.45rem;
  background: var(--surface-alt);
  border-radius: 3px;
  color: var(--muted);
  font-family: var(--font-sans);
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
a.card {
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
a.card:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-card);
  text-decoration: none;
}
.contributor-link {
  text-decoration: none;
  color: inherit;
}
.contributor-link:hover {
  text-decoration: underline;
  color: var(--crimson);
}
.contributor-grid .card {
  transition: border-color 0.2s, box-shadow 0.2s;
}
.contributor-grid .card:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-card);
}
.card-meta {
  font-size: 0.85rem;
  color: var(--muted);
  font-family: var(--font-sans);
}
/* ── Language badge ── */
.lang-badge {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-size: 0.7rem;
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: bold;
}
.lang-badge.fr { background: var(--lang-fr-bg); color: var(--lang-fr-text); }
.lang-badge.en { background: var(--lang-en-bg); color: var(--lang-en-text); }
.lang-badge.de { background: var(--lang-de-bg); color: var(--lang-de-text); }
.lang-badge.es { background: var(--lang-es-bg); color: var(--lang-es-text); }
.lang-badge.it { background: var(--lang-it-bg); color: var(--lang-it-text); }
/* ── Footer ── */
footer {
  background: var(--header-bg);
  color: var(--footer-text);
  text-align: center;
  padding: 1.5rem 2rem;
  margin-top: 4rem;
  font-size: 0.82rem;
  font-family: var(--font-sans);
}
footer a { color: var(--gold); }
.footer-nav {
  max-width: 68.75rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 2rem;
  align-items: start;
  text-align: left;
  padding: 2rem;
}
.footer-nav > div { border-top: 3px solid var(--gold); }
.footer-nav > div:nth-child(2) { border-top-color: var(--crimson); }
.footer-nav > div:nth-child(3) { border-top-color: var(--lang-fr-text); }
.footer-nav > div:nth-child(4) { border-top-color: var(--lang-en-text); }
.footer-brand {
  color: var(--header-text);
  font-size: 1.1rem;
  letter-spacing: 2px;
}
.footer-tagline {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  line-height: 1.6;
}
.footer-issn {
  margin: 0.3rem 0 0;
  font-size: 0.75rem;
}
.footer-publisher {
  margin: 0.3rem 0 0;
  font-size: 0.8rem;
}
.footer-heading {
  color: var(--footer-heading);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
  line-height: 2;
}
.footer-links li {
  padding: 0;
  margin: 0;
}
.footer-nav > div * {
  text-indent: 0;
  padding-left: 0;
  margin-left: 0;
}
.footer-rss {
  text-align: center;
  font-size: 0.75rem;
  max-width: 68.75rem;
  margin: 1.5rem auto 0;
  padding: 0 2rem;
}
.footer-bottom {
  border-top: 1px solid var(--footer-border);
  padding-top: 1rem;
  margin-top: 1.5rem;
  max-width: 68.75rem;
  margin-left: auto;
  margin-right: auto;
  font-size: 0.75rem;
}
.rss-links { margin-top: 0.5rem; }
.rss-links a {
  margin: 0 0.5rem;
  font-size: 0.8rem;
}
/* ── Article page ── */
.article-content { max-width: 48.75rem; }
.retraction-notice {
  background: var(--retraction-bg, #fef2f2);
  border: 2px solid var(--crimson);
  border-radius: 4px;
  padding: 1rem 1.2rem;
  margin-bottom: 1rem;
}
.retraction-title { margin: 0; font-weight: bold; color: var(--crimson); font-size: 0.95rem; }
.retraction-reason { margin-top: 0.5rem; font-size: 0.9rem; color: var(--text-secondary); }
.article-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-top: 0.5rem;
}
.article-title { font-size: 1.7rem; margin: 0; line-height: 1.3; }
.article-title.retracted { text-decoration: line-through; color: var(--text-tertiary); }
.article-badges { display: flex; gap: 0.4rem; flex-shrink: 0; margin-top: 0.4rem; }
.article-badges .lang-badge { font-size: 0.8rem; padding: 0.2rem 0.6rem; }
.version-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-tertiary);
}
.article-authors { margin-top: 0.8rem; }
.article-author { margin: 0.2rem 0; font-size: 1.05rem; color: var(--text-secondary); font-style: italic; }
.article-author a { color: var(--text-secondary); text-decoration: none; border-bottom: 1px dotted var(--border-light); }
.corresponding-icon { font-size: 0.75rem; font-style: normal; color: var(--text-tertiary); }
.orcid-link { font-size: 0.75rem; font-style: normal; text-decoration: none; }
.author-institution { font-size: 0.85rem; font-style: normal; color: var(--text-tertiary); }
.abstract-box {
  background: var(--surface);
  border-left: 3px solid var(--gold);
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 4px 4px 0;
}
.section-label {
  margin: 0 0 0.8rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  font-family: var(--font-sans);
}
.abstract-box .section-label { font-size: 1rem; }
.abstract-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-top: 0.5rem;
  gap: 0.5rem;
}
.abstract-actions.has-translate { justify-content: space-between; }
.abstract-translate-btn {
  background: none;
  border: 1px solid var(--gold);
  color: var(--text-tertiary);
  font-size: 0.78rem;
  padding: 0.25rem 0.6rem;
  border-radius: 3px;
  cursor: pointer;
  font-family: var(--font-sans);
}
.abstract-expand-btn {
  display: none;
  background: none;
  border: none;
  color: var(--crimson);
  font-size: 0.78rem;
  cursor: pointer;
  font-family: var(--font-sans);
  padding: 0.25rem 0;
}
.abstract-translation {
  display: none;
  margin-top: 1rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
}
.translation-label {
  font-size: 0.78rem;
  font-family: var(--font-sans);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.article-keywords {
  margin: 1rem 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.article-keywords-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  font-family: var(--font-sans);
  margin-right: 0.3rem;
}
.article-keyword-link {
  font-size: 0.82rem;
  padding: 0.2rem 0.6rem;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-secondary);
  text-decoration: none;
}
.licence-info { margin: 1rem 0 1.5rem; font-size: 0.85rem; color: var(--text-secondary); }
.licence-info a { color: var(--navy); }
.article-cite-section {
  margin-top: 1.5rem;
  padding: 1.2rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
}
.article-cite-section .section-label { margin-bottom: 1rem; }
.article-cite-section .cite-tabs { margin-bottom: 0.8rem; }
.article-cite-section .cite-tab { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
.article-cite-section .cite-block { font-size: 0.88rem; line-height: 1.6; }
.article-cite-section pre.cite-block { font-size: 0.8rem; line-height: 1.5; }
.translation-box { padding: 1rem 1.2rem; border: 1px solid var(--border); border-radius: 4px; font-size: 0.9rem; }
.version-info { font-size: 0.82rem; color: var(--text-tertiary); margin: 0.5rem 0; }
.pdf-download { margin: 1.5rem 0 1rem; }
.pdf-viewer { margin: 1.5rem 0; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
.pdf-embed { width: 100%; height: 45rem; display: block; }
.pdf-iframe { width: 100%; height: 45rem; border: none; }
.pdf-fallback { padding: 1rem; text-align: center; }
.errata-section {
  margin: 1.5rem 0;
  padding: 1rem 1.2rem;
  border: 1px solid var(--gold);
  border-radius: 4px;
  background: var(--surface);
}
.supplementary-section {
  margin: 1.5rem 0;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
}
.item-separator + .item-separator {
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
}
.errata-date { margin: 0; font-size: 0.82rem; color: var(--text-tertiary); }
.errata-content { font-size: 0.9rem; margin-top: 0.3rem; }
.errata-pdf { margin: 0.4rem 0 0; }
.errata-pdf .btn { font-size: 0.8rem; padding: 0.3rem 0.8rem; }
.supplementary-item { display: flex; gap: 0.8rem; align-items: flex-start; }
.material-type-badge {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-tertiary);
  white-space: nowrap;
}
.material-title { margin: 0; font-size: 0.9rem; font-weight: bold; }
.material-description { margin: 0.2rem 0 0; font-size: 0.85rem; color: var(--text-secondary); }
.material-link { font-size: 0.82rem; }
/* ── Abstract card ── */
.abstract-card { margin-top: 0.5rem; font-size: 0.9rem; color: var(--text-secondary); }
.abstract-fabricated { font-style: italic; }
.abstract-card-translation {
  display: none;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border);
}
.abstract-card-actions { display: flex; gap: 0.6rem; align-items: center; margin-top: 0.3rem; }
.abstract-card-expand {
  display: none;
  background: none;
  border: none;
  color: var(--crimson);
  font-size: 0.75rem;
  cursor: pointer;
  font-family: var(--font-sans);
  padding: 0;
}
.abstract-card-translate {
  background: none;
  border: 1px solid var(--gold);
  color: var(--text-tertiary);
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  cursor: pointer;
  font-family: var(--font-sans);
}
/* ── Article card extras ── */
.page-range { margin-left: 0.5rem; color: var(--muted); }
.article-card-snippet {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.5rem;
  line-height: 1.5;
  max-height: 4.5em;
  overflow: hidden;
}
.article-card-keywords { margin-top: 0.4rem; display: flex; flex-wrap: wrap; gap: 0.3rem; }
.article-card-cite-toggle { display: flex; gap: 0.5rem; align-items: center; margin-top: 0.5rem; }
.article-card-cite-panel { display: none; margin-top: 0.5rem; }
.article-card-translation { margin-top: 0.6rem; font-size: 0.85rem; }
/* ── Search page ── */
.search-form { margin-bottom: 2rem; }
.search-bar { display: flex; gap: 0.5rem; margin-bottom: 1.2rem; }
.search-input {
  flex: 1;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: var(--font-serif);
  background: var(--card-bg);
}
.search-input:focus-visible,
.filter-select:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}
.search-btn-submit { padding: 0.6rem 1.2rem; font-size: 0.95rem; cursor: pointer; border: none; }
.search-filters { margin-bottom: 1rem; }
.search-filters summary {
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--muted);
  user-select: none;
}
.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12.5rem, 1fr));
  gap: 0.8rem;
  margin-top: 0.8rem;
  padding: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
}
.search-clear { font-size: 0.85rem; font-family: var(--font-sans); }
.results-count { font-size: 0.9rem; color: var(--muted); margin-bottom: 1rem; font-family: var(--font-sans); }
/* ── Contact form ── */
.contact-form { max-width: 37.5rem; }
.form-field { margin-bottom: 1rem; }
.form-label {
  display: block;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: 0.3rem;
}
.form-input {
  width: 100%;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: var(--font-serif);
  background: var(--card-bg);
}
textarea.form-input { resize: vertical; }
.form-error { color: var(--crimson); font-size: 0.82rem; margin: 0.3rem 0 0; }
.form-submit { padding: 0.6rem 1.5rem; font-size: 0.95rem; cursor: pointer; border: none; margin-top: 0.5rem; }
/* ── Page layouts ── */
.page-subtitle { font-size: 0.92rem; color: var(--text-secondary); margin-bottom: 1.5rem; }
.intro-text { margin-bottom: 2rem; color: var(--text-secondary); }
.intro-text-content { margin-bottom: 2rem; font-size: 1rem; }
.content-narrow { max-width: 48.75rem; font-size: 1rem; line-height: 1.8; }
.home-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.home-intro {
  margin-bottom: 2rem;
  padding: 1.5rem 2rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  border-radius: 4px;
}
.cover-float {
  float: right;
  margin: 0 0 1rem 1.5rem;
  box-shadow: 3px 3px 10px rgba(0,0,0,0.15);
  max-width: 7.5rem;
  height: auto;
}
.btn-group { display: flex; gap: 0.8rem; margin-top: 1rem; }
.volume-grid { display: grid; gap: 1.5rem; margin-top: 1rem; }
.volume-card { border-left: 3px solid var(--navy); display: flex; gap: 1.5rem; align-items: flex-start; }
.volume-card-cover-img { width: 5rem; height: auto; flex-shrink: 0; box-shadow: 2px 2px 8px rgba(0,0,0,0.12); }
.volume-card-placeholder {
  width: 5rem;
  flex-shrink: 0;
  height: 6.875rem;
  background: var(--placeholder-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--placeholder-text);
  font-size: 0.75rem;
  text-align: center;
  border: 1px solid var(--placeholder-border);
}
.volume-card-body { flex: 1; min-width: 0; }
.volume-card-desc { margin-top: 0.6rem; font-size: 0.92rem; color: var(--text-secondary); }
.volume-card-articles {
  list-style: none;
  margin: 0.8rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 1.2rem;
  row-gap: 0.55rem;
  font-size: 0.88rem;
}
.volume-card-article { line-height: 1.25; break-inside: avoid; }
.volume-card-article-title {
  display: block;
  color: var(--text-primary);
  text-decoration: none;
}
.volume-card-article-title:hover { text-decoration: underline; }
.volume-card-article-authors {
  display: block;
  margin-top: 0.1rem;
  color: var(--text-secondary);
  font-size: 0.92em;
}
.volume-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.volume-header.no-cover { grid-template-columns: 1fr; }
.volume-cover { max-width: 10rem; height: auto; box-shadow: 3px 3px 10px rgba(0,0,0,0.15); }
.volume-meta { font-family: var(--font-sans); }
.special-title-main { font-variant: small-caps; letter-spacing: 0.03em; font-weight: bold; font-size: 1.1em; }
.volume-editors { font-style: italic; font-size: 0.92rem; }
.volume-editors-inline { display: none !important; }
.article-grid-section { margin-top: 1rem; margin-bottom: 2rem; }
.keyword-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  text-decoration: none;
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.15s;
}
.keyword-count {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  background: var(--border-cite);
  padding: 0.1rem 0.4rem;
  border-radius: 10px;
}
.subpage-links { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.subpage-grid { display: grid; gap: 1rem; margin-top: 2rem; max-width: 48.75rem; }
.subpage-card { text-decoration: none; color: inherit; border-left: 3px solid var(--gold); display: block; }
.subpage-card .card-title { margin: 0; color: var(--crimson); }
.success-page { max-width: 37.5rem; margin: 2rem auto; text-align: center; }
.success-page h1 { font-size: 1.5rem; margin-bottom: 1rem; }
.success-page p { font-size: 0.95rem; color: var(--text-secondary); }
.author-meta { margin-top: 0.8rem; font-size: 0.95rem; color: var(--text-secondary); }
.author-meta p { margin: 0.2rem 0; }
.author-meta a { font-size: 0.88rem; }
.author-bio { margin-top: 1.5rem; font-size: 0.95rem; }
.board-member-name { font-size: 1rem; }
.contributor-orcid { margin: 0.2rem 0 0; font-size: 0.75rem; color: var(--text-tertiary); }
.card-historical { background: var(--surface-historical); }
.card-historical .board-member-name { color: var(--text-secondary); }
[data-view="list"] .card-historical .board-member-name { color: var(--text-tertiary); }
.author-link { color: inherit; text-decoration: none; border-bottom: 1px dotted var(--border-light); }
/* ── Responsive ── */
@media (max-width: 768px) {
  .header-inner { padding: 1rem; }
  nav a { padding: 0.25rem 0.5rem; font-size: 0.8rem; }
  .lang-switcher { margin-left: 0.4rem; padding-left: 0.4rem; }
  main { padding-left: 1rem; padding-right: 1rem; }
  .home-grid { grid-template-columns: 1fr; gap: 2rem; }
  .volume-header { grid-template-columns: 1fr; }
  .volume-card { flex-direction: column; align-items: center; text-align: center; }
  .volume-card-articles { grid-template-columns: 1fr; text-align: left; }
  .footer-nav {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
  }
  [data-view="list"] .contributor-grid { grid-template-columns: repeat(2, 1fr); }
  [data-view="list"] .board-grid { columns: 1; }
  [data-view="list"] .keyword-cloud { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .site-title a { font-size: 1.5rem; }
  .site-subtitle { font-size: 0.7rem; }
  h1 { font-size: 1.1rem !important; }
  h2 { font-size: 0.95rem !important; }
  h3 { font-size: 0.9rem !important; }
  body { font-size: 0.85rem; }
  nav { gap: 0.15rem; }
  nav a { padding: 0.2rem 0.35rem; font-size: 0.75rem; }
  .footer-nav {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    padding: 1rem;
  }
  .footer-bottom { font-size: 0.65rem; }
  [data-view="list"] .contributor-grid { grid-template-columns: 1fr; }
  [data-view="list"] .keyword-cloud { grid-template-columns: 1fr; }
}
/* ── Utilities ── */
.btn {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  background: var(--navy);
  color: white !important;
  border-radius: 3px;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  text-decoration: none !important;
}
.btn:hover { background: var(--navy-light); }
.btn-outline {
  background: none;
  border: 1px solid var(--crimson);
  color: var(--crimson) !important;
}
.btn-outline:hover { background: var(--crimson); color: white !important; }
.btn-paper {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  font-size: 0.88rem;
  border-radius: 3px;
  text-decoration: none !important;
}
.btn-paper-sm { font-size: 0.78rem; padding: 0.25rem 0.6rem; margin-left: 0.5rem; }
.paper-link { margin-top: 1rem; }
.paper-notice { margin-top: 2rem; font-style: italic; }
.paper-notice a { color: var(--crimson); }
.btn-download { margin: 0.3rem 0.3rem 0.3rem 0; }
.btn-overleaf { border-color: #47a141; color: #47a141 !important; }
.btn-overleaf:hover { background: #47a141; color: white !important; }
.overleaf-group { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; margin: 0.3rem 0; }
.overleaf-label { font-size: 0.88rem; color: var(--text-secondary); }
.overleaf-lang {
  display: inline-block; padding: 0.15rem 0.5rem; border: 1px solid #47a141;
  border-radius: 0.25rem; color: #47a141; font-size: 0.82rem; font-weight: 600;
  text-decoration: none; line-height: 1.4;
}
.overleaf-lang:hover, .overleaf-lang:focus-visible { background: #47a141; color: #fff; }
.text-muted { color: var(--muted); font-size: 0.88rem; }
/* ── Skip link ── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  background: var(--gold);
  color: var(--navy);
  padding: 0.5rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: bold;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
}
.skip-link:focus {
  left: 50%;
  transform: translateX(-50%);
}
/* ── Focus-visible indicators ── */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
nav a:focus-visible {
  background: var(--header-hover-bg);
  color: white;
  outline: 2px solid var(--gold);
  outline-offset: 1px;
  border-radius: 3px;
}
.lang-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}
.search-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}
.btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.btn-outline:focus-visible {
  outline: 2px solid var(--crimson);
  outline-offset: 2px;
}
footer a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Breadcrumbs */
.breadcrumbs {
  margin-bottom: 0.8rem;
  font-size: 0.85rem;
}
.breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  align-items: center;
}
.breadcrumbs li {
  display: flex;
  align-items: center;
}
.breadcrumbs li:not(:last-child)::after {
  content: "›";
  margin-left: 0.4rem;
  color: var(--text-tertiary);
}
.breadcrumbs a {
  color: var(--text-secondary);
  text-decoration: none;
}
.breadcrumbs a:hover {
  color: var(--navy);
  text-decoration: underline;
}
[data-theme="dark"] .breadcrumbs a:hover {
  color: var(--gold);
}
.breadcrumbs li[aria-current="page"] {
  color: var(--text-tertiary);
}

/* For Authors — section cards */
.author-sections { display: flex; flex-direction: column; gap: 0; }
.author-section {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}
.author-section:first-child { padding-top: 0; }
.author-section:last-child { border-bottom: none; }
.author-section h3 {
  margin-top: 0;
  font-size: 1.25rem;
  color: var(--crimson);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}
.author-section > :last-child { margin-bottom: 0; }

/* For Authors — sidebar layout */
.author-layout {
  display: grid;
  grid-template-columns: 1fr 18rem;
  gap: 3rem;
}
.author-main { min-width: 0; }
.author-downloads-mobile { display: none; }

/* Sidebar */
.author-sidebar-inner {
  position: sticky;
  top: 1.5rem;
}
.sidebar-heading {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin: 0 0 0.75rem 0;
  font-family: var(--font-sans);
}
.sidebar-downloads {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.btn-sidebar {
  display: block;
  text-align: center;
  margin: 0 0 0.5rem 0;
  font-size: 0.85rem;
  padding: 0.4rem 0.75rem;
}
.btn-sidebar:last-child { margin-bottom: 0; }

/* TOC */
.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.toc-list li { margin-bottom: 0.25rem; }
.toc-link {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.3rem 0.6rem;
  border-left: 2px solid transparent;
  border-radius: 0 0.2rem 0.2rem 0;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.toc-link:hover {
  color: var(--crimson);
  background: var(--card-bg);
}
.toc-link.toc-active {
  color: var(--crimson);
  border-left-color: var(--gold);
  font-weight: 600;
}

/* Responsive: sidebar disappears, download buttons inline */
@media (max-width: 768px) {
  .author-layout {
    display: block;
  }
  .author-sidebar { display: none; }
  .author-downloads-mobile {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
  }
}