:root {
  --lu-sand: #f4efe7;
  --lu-sand-2: #ece4d6;
  --lu-paper: #fffdf9;
  --lu-terra: #c25b3e;
  --lu-terra-2: #a8492f;
  --lu-sage: #6b7d6a;
  --lu-ink: #2a211d;
  --lu-body: #564a44;
  --lu-muted: #8a7d73;
  --lu-line: #e3d9c9;
  --lu-radius: 20px;
  --lu-radius-sm: 14px;
  --lu-shadow: 0 2px 4px rgba(42, 33, 29, .04), 0 16px 36px rgba(42, 33, 29, .08);
  --lu-shadow-hover: 0 26px 60px rgba(42, 33, 29, .16);
  --lu-sans: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}

html { scroll-behavior: smooth; }
body {
  color: var(--lu-body);
  background: var(--lu-sand);
  font-family: var(--lu-sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--lu-terra); }
a:hover { color: var(--lu-terra-2); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid rgba(194, 91, 62, .5);
  outline-offset: 2px;
  border-radius: 8px;
}

/* ---------- Header / navigation ---------- */
.pkp_structure_head { background: var(--lu-paper); border-bottom: 1px solid var(--lu-line); }
.pkp_head_wrapper { max-width: 1180px; min-height: 92px; margin: 0 auto; }
.pkp_site_name { padding: 1.25rem 1.5rem; }
.pkp_site_name .is_text { color: var(--lu-ink); font-size: 1.3rem; font-weight: 700; letter-spacing: -.02em; }
.pkp_site_name .is_image img { max-height: 60px; }
.pkp_navigation_primary > li > a {
  color: var(--lu-body);
  font-weight: 600;
  border: 0;
  padding: .8rem .25rem;
  margin: 0 .75rem;
  border-radius: 0;
}
.pkp_navigation_primary > li > a:hover,
.pkp_navigation_primary > li > a:focus { color: var(--lu-terra); box-shadow: inset 0 -3px 0 var(--lu-terra); }
.pkp_navigation_user > li > a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: .35rem .95rem;
  border-radius: 999px;
  color: var(--lu-ink);
  font-weight: 600;
  text-shadow: none;
  background: var(--lu-sand-2);
}
.pkp_navigation_user > li > a:hover,
.pkp_navigation_user > li > a:focus { background: var(--lu-terra); color: #fff; }
.lumen-theme-toggle-item { display: inline-flex; }
.lumen-theme-toggle {
  display: inline-grid;
  width: 36px;
  height: 36px;
  margin-left: .25rem;
  place-items: center;
  padding: 0;
  background: var(--lu-sand-2);
  border: 1px solid var(--lu-line);
  border-radius: 999px;
  color: var(--lu-ink);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.lumen-theme-toggle:hover { background: var(--lu-terra); color: #fff; transform: rotate(8deg); }

/* ---------- Layout shell ---------- */
.pkp_structure_content { padding: 0; max-width: none; background: var(--lu-sand); }
.pkp_structure_main { float: none; width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 1.5rem 4rem; }
.pkp_structure_main:before, .pkp_structure_main:after { display: none; }
.pkp_structure_sidebar { display: none; }
.pkp_page_title { display: none; }

/* ---------- Hero ---------- */
.lumen-journal { margin-top: 0; }
.lumen-hero {
  position: relative;
  max-width: 1180px;
  margin: clamp(1.5rem, 3vw, 2.5rem) auto 0;
  padding: clamp(2.5rem, 5vw, 4rem);
  text-align: center;
  background: var(--lu-paper);
  border: 1px solid var(--lu-line);
  border-radius: var(--lu-radius);
  box-shadow: var(--lu-shadow);
  overflow: hidden;
}
.lumen-hero::before {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(194, 91, 62, .12), transparent 70%);
  content: "";
}
.lumen-hero::after {
  position: absolute;
  bottom: -70px;
  left: -50px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(107, 125, 106, .14), transparent 70%);
  content: "";
}
.lumen-tag {
  position: relative;
  display: inline-block;
  margin: 0 0 1rem;
  padding: .35rem 1rem;
  background: rgba(107, 125, 106, .16);
  border-radius: 999px;
  color: var(--lu-sage);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.lumen-hero h1 {
  position: relative;
  margin: 0 auto;
  max-width: 18ch;
  color: var(--lu-ink);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.025em;
}
.lumen-lead {
  position: relative;
  max-width: 60ch;
  margin: 1.25rem auto 0;
  color: var(--lu-body);
  font-size: 1.05rem;
  line-height: 1.75;
}
.lumen-lead p { margin: 0 0 .7rem; }
.lumen-hero__actions { position: relative; display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem; margin-top: 1.9rem; }
.lumen-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .75rem 1.6rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.lumen-btn--primary { background: var(--lu-terra); color: #fff; box-shadow: 0 8px 18px rgba(194, 91, 62, .3); }
.lumen-btn--primary:hover { background: var(--lu-terra-2); color: #fff; transform: translateY(-2px); }
.lumen-btn--soft { background: var(--lu-sand-2); color: var(--lu-ink); }
.lumen-btn--soft:hover { background: var(--lu-ink); color: #fff; transform: translateY(-2px); }

/* ---------- Metric tiles ---------- */
.lumen-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  max-width: 1180px;
  margin: 1.25rem auto 0;
}
.lumen-metric {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1.4rem 1.25rem;
  background: var(--lu-paper);
  border: 1px solid var(--lu-line);
  border-radius: var(--lu-radius-sm);
  box-shadow: var(--lu-shadow);
}
.lumen-metric__label { color: var(--lu-sage); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.lumen-metric__value { color: var(--lu-ink); font-size: 1.2rem; font-weight: 800; line-height: 1.25; }

/* ---------- Quick access cards ---------- */
.lumen-quick {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  max-width: 1180px;
  margin: 2.5rem auto 0;
}
.lumen-quick__card {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding: 1.25rem;
  background: var(--lu-paper);
  border: 1px solid var(--lu-line);
  border-radius: var(--lu-radius-sm);
  box-shadow: var(--lu-shadow);
  color: var(--lu-ink);
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease;
}
.lumen-quick__card:hover { transform: translateY(-3px); box-shadow: var(--lu-shadow-hover); color: var(--lu-ink); }
.lumen-quick__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  background: rgba(194, 91, 62, .12);
  border-radius: 12px;
  color: var(--lu-terra);
}
.lumen-quick__icon svg { width: 22px; height: 22px; }
.lumen-quick__text { display: flex; flex-direction: column; min-width: 0; }
.lumen-quick__text strong { font-size: .98rem; font-weight: 700; }
.lumen-quick__text span { color: var(--lu-muted); font-size: .82rem; line-height: 1.35; }

/* ---------- Latest articles ---------- */
.lumen-latest { max-width: 1180px; margin: 2.75rem auto 0; }
.lumen-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; margin: 0 0 1.75rem; }
.lumen-section-head h2 { margin: .25rem 0 0; color: var(--lu-ink); font-size: 1.6rem; font-weight: 800; letter-spacing: -.02em; }
.lumen-kicker { margin: 0; color: var(--lu-terra); font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.lumen-link { color: var(--lu-terra); font-weight: 700; text-decoration: none; white-space: nowrap; }
.lumen-link:hover { color: var(--lu-terra-2); }

.lumen-articles .cmp_article_list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.lumen-articles .cmp_article_list > li,
.lumen-articles .obj_article_details {
  margin: 0;
  padding: 1.5rem;
  background: var(--lu-paper);
  border: 1px solid var(--lu-line);
  border-radius: var(--lu-radius-sm);
  box-shadow: var(--lu-shadow);
  transition: transform .15s ease, box-shadow .15s ease;
}
.lumen-articles .obj_article_details:hover { transform: translateY(-3px); box-shadow: var(--lu-shadow-hover); }
.lumen-articles .obj_article_details > .image { display: none; }
.lumen-articles .obj_article_details .series { display: inline-block; margin: 0 0 .5rem; padding: .2rem .6rem; border-radius: 999px; background: rgba(107, 125, 106, .16); color: var(--lu-sage); font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.lumen-articles .obj_article_details .title { margin: 0 0 .4rem; font-size: 1.15rem; font-weight: 700; line-height: 1.32; }
.lumen-articles .obj_article_details .title a { color: var(--lu-ink); text-decoration: none; }
.lumen-articles .obj_article_details .title a:hover { color: var(--lu-terra); }
.lumen-articles .obj_article_details .meta,
.lumen-articles .obj_article_details .authors { color: var(--lu-muted); font-size: .9rem; }
.lumen-articles .obj_article_details .galleys { margin-top: .85rem; }
.lumen-articles .cmp_galleys li,
.lumen-articles .obj_galley_link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: .3rem .85rem;
  border: 1px solid var(--lu-line);
  border-radius: 999px;
  color: var(--lu-body);
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
}
.lumen-articles .obj_galley_link:hover { background: var(--lu-terra); border-color: var(--lu-terra); color: #fff; }
.lumen-articles .obj_article_details .doi a,
.lumen-articles .obj_article_details .doi { color: var(--lu-muted); font-size: .8rem; }
.lumen-articles .obj_article_details .doi a:hover { color: var(--lu-terra); }
.lumen-articles .section { margin-top: 1.5rem; grid-column: 1 / -1; }
.lumen-articles .section:first-child { margin-top: 0; }
.lumen-articles .section .title { margin: 0 0 1rem; color: var(--lu-ink); font-size: 1.1rem; font-weight: 800; }

/* ---------- Empty state ---------- */
.lumen-empty { padding: 2rem; text-align: center; background: var(--lu-paper); border: 1px dashed var(--lu-line); border-radius: var(--lu-radius-sm); }
.lumen-empty p { margin: 0 0 1.25rem; color: var(--lu-muted); }

/* ---------- Announcements ---------- */
.lumen-latest + .cmp_announcements,
.lumen-journal > .cmp_announcements { max-width: 1180px; margin: 2.75rem auto 0; }
.cmp_announcements h2,
.cmp_announcements h3 { margin: 0 0 1.25rem; color: var(--lu-ink); font-size: 1.5rem; font-weight: 800; }
.cmp_announcements .obj_announcement_summary { padding: 1.25rem; margin-bottom: 1rem; background: var(--lu-paper); border: 1px solid var(--lu-line); border-radius: var(--lu-radius-sm); box-shadow: var(--lu-shadow); }
.cmp_announcements .obj_announcement_summary .title { margin: 0 0 .3rem; font-size: 1.05rem; font-weight: 700; }
.cmp_announcements .obj_announcement_summary .title a { color: var(--lu-ink); text-decoration: none; }
.cmp_announcements .obj_announcement_summary .title a:hover { color: var(--lu-terra); }
.cmp_announcements .obj_announcement_summary .date { color: var(--lu-sage); font-size: .8rem; font-weight: 600; }
.cmp_announcements .obj_announcement_summary .summary { margin: .45rem 0 0; color: var(--lu-body); font-size: .95rem; line-height: 1.7; }

/* ---------- Footer ---------- */
.pkp_structure_footer_wrapper { background: var(--lu-ink); color: #d8cdc3; }
.pkp_structure_footer { max-width: 1180px; margin: 0 auto; padding: 2.5rem 1.5rem; }
.pkp_structure_footer a { color: #e8a48f; }
.pkp_structure_footer a:hover { color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .lumen-metrics { grid-template-columns: repeat(2, 1fr); }
  .lumen-quick { grid-template-columns: repeat(2, 1fr); }
  .lumen-articles .cmp_article_list { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .lumen-section-head { flex-direction: column; align-items: flex-start; gap: .5rem; }
}
@media (max-width: 480px) {
  .lumen-metrics { grid-template-columns: 1fr; }
  .lumen-quick { grid-template-columns: 1fr; }
  .lumen-hero__actions { flex-direction: column; }
  .lumen-hero__actions .lumen-btn { width: 100%; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

/* ---------- Dark mode ---------- */
html[data-lumen-theme="dark"] { color-scheme: dark; }
html[data-lumen-theme="dark"] body,
html[data-lumen-theme="dark"] .pkp_structure_content { background: #1c1714; color: #d6cdc3; }
html[data-lumen-theme="dark"] .pkp_structure_head,
html[data-lumen-theme="dark"] .lumen-hero,
html[data-lumen-theme="dark"] .lumen-metric,
html[data-lumen-theme="dark"] .lumen-quick__card,
html[data-lumen-theme="dark"] .lumen-articles .obj_article_details,
html[data-lumen-theme="dark"] .lumen-empty,
html[data-lumen-theme="dark"] .cmp_announcements .obj_announcement_summary { background: #25201c; border-color: #3a322c; box-shadow: none; }
html[data-lumen-theme="dark"] .pkp_navigation_user > li > a,
html[data-lumen-theme="dark"] .lumen-theme-toggle { background: #322b25; color: #ede5da; border-color: #3a322c; }
html[data-lumen-theme="dark"] .pkp_site_name .is_text,
html[data-lumen-theme="dark"] .lumen-hero h1,
html[data-lumen-theme="dark"] .lumen-section-head h2,
html[data-lumen-theme="dark"] .lumen-metric__value,
html[data-lumen-theme="dark"] .lumen-quick__text strong,
html[data-lumen-theme="dark"] .lumen-articles .obj_article_details .title a,
html[data-lumen-theme="dark"] .lumen-articles .section .title,
html[data-lumen-theme="dark"] .cmp_announcements h2,
html[data-lumen-theme="dark"] .cmp_announcements h3,
html[data-lumen-theme="dark"] .cmp_announcements .obj_announcement_summary .title a { color: #f6efe5; }
html[data-lumen-theme="dark"] .lumen-lead,
html[data-lumen-theme="dark"] .lumen-empty p,
html[data-lumen-theme="dark"] .lumen-articles .obj_article_details .meta,
html[data-lumen-theme="dark"] .lumen-articles .obj_article_details .authors,
html[data-lumen-theme="dark"] .lumen-articles .obj_article_details .doi,
html[data-lumen-theme="dark"] .cmp_announcements .obj_announcement_summary .summary,
html[data-lumen-theme="dark"] .lumen-quick__text span { color: #a89e92; }
html[data-lumen-theme="dark"] .lumen-tag { background: rgba(150, 168, 149, .18); color: #a9bda7; }
html[data-lumen-theme="dark"] .lumen-metric__label,
html[data-lumen-theme="dark"] .cmp_announcements .obj_announcement_summary .date { color: #8faa8d; }
html[data-lumen-theme="dark"] .lumen-quick__icon { background: rgba(232, 140, 110, .16); color: #e8a48f; }
html[data-lumen-theme="dark"] .lumen-articles .obj_article_details .series { background: rgba(150, 168, 149, .18); color: #a9bda7; }
html[data-lumen-theme="dark"] .lumen-articles .obj_galley_link,
html[data-lumen-theme="dark"] .lumen-articles .obj_article_details .galleys li { border-color: #3a322c; color: #d6cdc3; }
html[data-lumen-theme="dark"] a,
html[data-lumen-theme="dark"] .lumen-kicker,
html[data-lumen-theme="dark"] .lumen-link { color: #e8a48f; }
html[data-lumen-theme="dark"] .pkp_structure_footer_wrapper { background: #120e0c; }