:root {
  --bg: #FFFFFF;
  --ink: #1B1B1B;
  --ink-soft: #626262;
  --ink-faint: #9A9A9A;
  --accent: #3C3FA0;
  --line: #E4E4E4;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121212; --ink: #EDEDED; --ink-soft: #A8A8A8; --ink-faint: #737373;
    --accent: #9497E8; --line: #2C2C2C;
  }
}
:root[data-theme="dark"] {
  --bg: #121212; --ink: #EDEDED; --ink-soft: #A8A8A8; --ink-faint: #737373;
  --accent: #9497E8; --line: #2C2C2C;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: 'Manrope', system-ui, sans-serif; font-size: 16px; line-height: 1.65;
}
h1, h2, h3 { font-family: 'Newsreader', Georgia, serif; color: var(--ink); margin: 0; font-weight: 500; }
a { color: inherit; }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 28px; }

header.site {
  display: flex; align-items: center; justify-content: space-between;
  padding: 26px 0; border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; width: 100%; flex-wrap: wrap; gap: 14px; }
.wordmark { font-family: 'Newsreader', serif; font-size: 17px; font-weight: 500; text-decoration: none; }
nav.main { display: flex; gap: 24px; flex-wrap: wrap; }
nav.main a { font-size: 13.5px; color: var(--ink-soft); text-decoration: none; }
nav.main a:hover, nav.main a.active { color: var(--ink); }
.lang-switch { display: flex; gap: 10px; font-size: 13px; }
.lang-switch a { color: var(--ink-faint); text-decoration: none; }
.lang-switch a.current { color: var(--ink); }

.page-hero { padding: 56px 0 12px; }
.page-hero h1 { font-size: clamp(26px, 3.6vw, 34px); }
.page-hero p { margin-top: 14px; color: var(--ink-soft); font-size: 15px; max-width: 560px; }

section { padding: 56px 0; border-bottom: 1px solid var(--line); }
section:last-of-type { border-bottom: none; }
@media (max-width: 600px) { section { padding: 40px 0; } .wrap { padding: 0 20px; } }

.hero h1 { font-size: clamp(30px, 4vw, 40px); line-height: 1.32; max-width: 620px; }
.hero .lede { margin-top: 20px; color: var(--ink-soft); max-width: 520px; font-size: 15.5px; }
.hero .meta { margin-top: 28px; font-size: 13.5px; color: var(--ink-faint); }

h2.section-title { font-size: 22px; margin-bottom: 8px; }
.section-sub { color: var(--ink-faint); font-size: 14px; margin-bottom: 36px; }

.research-item { padding: 24px 0; border-top: 1px solid var(--line); }
.research-item:last-child { border-bottom: 1px solid var(--line); }
.research-item h3 { font-size: 18px; margin-bottom: 8px; }
.research-item p { color: var(--ink-soft); margin: 0; font-size: 14.5px; max-width: 600px; }
.research-item .kw { margin-top: 10px; font-size: 13px; color: var(--ink-faint); }

.people-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 22px 20px; }
.person { display: flex; align-items: center; gap: 12px; }
.avatar {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Newsreader', serif; font-size: 15px; color: var(--ink-soft); flex-shrink: 0;
}
.person h4 { font-size: 14.5px; font-weight: 500; font-family: 'Manrope', sans-serif; margin: 0; }
.person .role { font-size: 12.5px; color: var(--ink-faint); }

/* Publications: filter bar */
.pub-controls {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
  margin-bottom: 30px; padding-bottom: 24px; border-bottom: 1px solid var(--line);
}
.pub-controls input[type="text"] {
  flex: 1; min-width: 180px; padding: 9px 12px; font-size: 14px;
  border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink);
  font-family: 'Manrope', sans-serif;
}
.pub-controls select {
  padding: 9px 10px; font-size: 14px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--bg); color: var(--ink); font-family: 'Manrope', sans-serif;
}
.pub-tags { display: flex; gap: 7px; flex-wrap: wrap; width: 100%; }
.pub-tag-btn {
  font-size: 12.5px; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--line);
  background: transparent; color: var(--ink-soft); cursor: pointer; font-family: 'Manrope', sans-serif;
}
.pub-tag-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.pub-count { font-size: 13px; color: var(--ink-faint); margin-bottom: 18px; }

.pub-year { font-family: 'Newsreader', serif; font-size: 14px; color: var(--accent); margin: 30px 0 12px; }
.pub-year:first-child { margin-top: 0; }
.pub-item { padding: 13px 0; border-top: 1px solid var(--line); }
.pub-item h4 { font-size: 15px; font-weight: 500; font-family: 'Manrope', sans-serif; margin: 0 0 4px; }
.pub-item .meta { font-size: 13px; color: var(--ink-faint); }
.pub-item .pub-tags-row { margin-top: 6px; display: flex; gap: 6px; flex-wrap: wrap; }
.pub-item .pub-tags-row span { font-size: 11.5px; color: var(--ink-faint); border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px; }
.pub-empty { color: var(--ink-faint); font-size: 14px; padding: 20px 0; }

.news-item { display: grid; grid-template-columns: 84px 1fr; gap: 20px; padding: 16px 0; border-top: 1px solid var(--line); }
.news-item:last-child { border-bottom: 1px solid var(--line); }
.news-item time { font-size: 13px; color: var(--ink-faint); }
.news-item p { margin: 0; font-size: 14.5px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 600px) { .contact-grid { grid-template-columns: 1fr; } }
.info-line { display: flex; gap: 10px; padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px; }
.info-line span:first-child { color: var(--ink-faint); width: 56px; flex-shrink: 0; }

footer.site { padding: 30px 0 40px; font-size: 12.5px; color: var(--ink-faint); }
.loading-hint { color: var(--ink-faint); font-size: 13.5px; }