:root {
  --hero-bg: #0b1f3a;
  --hero-text: #ffffff;
  --hero-muted: #c7d4e8;
  --accent: #5b8def;
  --accent-contrast: #06122b;
  --gold: #d6a93b;
  --bg: #0e1424;
  --bg-elev: #101a2e;
  --surface: #152033;
  --text: #e6edf7;
  --text-muted: #8aa0c2;
  --text-subtle: #6b7f9e;
  --border: rgba(255, 255, 255, 0.08);
  --maxw: 980px;
  --radius: 12px;
}
[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-elev: #ffffff;
  --surface: #ffffff;
  --text: #1a2233;
  --text-muted: #4a5872;
  --text-subtle: #6b7f9e;
  --accent: #1d5fb0;
  --accent-contrast: #ffffff;
  --border: rgba(0, 0, 0, 0.10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 0.5em; font-weight: 600; line-height: 1.25; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { padding: 64px 0; }
.section-title { font-size: 1.6rem; margin-bottom: 1.5rem; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--accent); color: var(--accent-contrast); padding: 8px 14px; z-index: 100; }
.skip-link:focus { left: 8px; top: 8px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 20px; }
.nav-brand { font-weight: 600; color: var(--text); white-space: nowrap; flex-shrink: 0; }
.nav-links { display: flex; gap: 13px; align-items: center; flex-wrap: nowrap; justify-content: flex-end; }
.nav-links a { color: var(--text-muted); font-size: 0.86rem; white-space: nowrap; }
.nav-links a.active, .nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text-muted);
  width: 36px; height: 36px; border-radius: 8px; cursor: pointer; font-size: 1.05rem;
  display: inline-flex; align-items: center; justify-content: center;
}
.nav-btn:hover { color: var(--text); border-color: var(--accent); }
@media (max-width: 900px) {
  .nav-links a { display: none; }
  .nav-links .nav-btn { display: inline-flex; }
}

.hero { background: var(--hero-bg); padding: 96px 0 72px; }
.hero .eyebrow { color: var(--accent); margin: 0 0 8px; letter-spacing: 0.04em; }
.hero h1 { color: var(--hero-text); font-size: clamp(2rem, 5vw, 3rem); }
.hero p.tagline { color: var(--hero-muted); max-width: 620px; }
.hero-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.hero-links a {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255, 255, 255, 0.1); color: #e9f0fb;
  padding: 8px 14px; border-radius: 8px; font-size: 0.88rem;
}
.hero-links a.primary { background: var(--accent); color: var(--accent-contrast); }
.hero-links a:hover { text-decoration: none; filter: brightness(1.1); }

.tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; }
.tags li { background: var(--surface); border: 1px solid var(--border); color: var(--text-muted); padding: 6px 12px; border-radius: 999px; font-size: 0.85rem; }

.edu-item { display: flex; gap: 12px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--border); }
.edu-item i { color: var(--accent); font-size: 1.2rem; margin-top: 2px; }
.edu-item.honorary i { color: var(--gold); }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

.pub-controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px; }
.pub-search { background: var(--surface); border: 1px solid var(--border); color: var(--text); padding: 8px 12px; border-radius: 8px; min-width: 220px; }
.pub-sort { background: var(--surface); border: 1px solid var(--border); color: var(--text); padding: 8px 12px; border-radius: 8px; cursor: pointer; font-size: 0.85rem; }
.pub-sort:hover { border-color: var(--accent); }
.pub-years { display: flex; flex-wrap: wrap; gap: 6px; }
.pub-chip { background: var(--surface); border: 1px solid var(--border); color: var(--text-muted); padding: 5px 11px; border-radius: 8px; cursor: pointer; font-size: 0.82rem; }
.pub-chip.active { background: var(--accent); color: var(--accent-contrast); border-color: var(--accent); }
.pub-source { color: var(--text-subtle); font-size: 0.78rem; margin-left: auto; display: inline-flex; gap: 5px; align-items: center; }
.pub-item { background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 8px; padding: 12px 14px; margin-bottom: 8px; }
.pub-item .pub-title { color: var(--text); font-size: 0.95rem; }
.pub-item .pub-meta { color: var(--text-muted); font-size: 0.8rem; }
.pub-doi { color: var(--accent); font-weight: 500; }
.pub-cit { color: var(--gold); font-weight: 500; }
.pub-metrics { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 16px; font-size: 0.85rem; }
.pub-metrics a { color: var(--text); display: inline-flex; align-items: center; gap: 6px; }
.pub-metrics a:hover { color: var(--accent); text-decoration: none; }
.pub-metrics b { color: var(--accent); }
.src-tag { color: var(--text-subtle); font-size: 0.72rem; border: 1px solid var(--border); border-radius: 6px; padding: 1px 6px; }
.pub-upd { color: var(--text-subtle); font-size: 0.78rem; }

.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tab { background: var(--surface); border: 1px solid var(--border); color: var(--text-muted); padding: 7px 14px; border-radius: 8px; cursor: pointer; }
.tab.active { background: var(--accent); color: var(--accent-contrast); border-color: var(--accent); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.proj-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.proj-card h3 { font-size: 1rem; margin-bottom: 6px; }
.proj-card p { color: var(--text-muted); font-size: 0.88rem; margin: 0; }
.proj-period { color: var(--text-subtle); font-size: 0.78rem; margin-bottom: 8px; }
.proj-meta { color: var(--text-subtle); font-size: 0.78rem; margin-top: 10px; display: flex; gap: 12px; }
.tab-panel[hidden] { display: none; }

#leadership { background: var(--bg-elev); }
.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin: 16px 0 24px; }
.metric { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.metric .value { color: var(--accent); font-size: 1.6rem; font-weight: 600; }
.metric .label { color: var(--text-muted); font-size: 0.82rem; }
.lead-attribution { color: var(--text-muted); }
.site-footer { background: var(--hero-bg); color: var(--hero-muted); padding: 36px 0; margin-top: 0; }
.site-footer a { color: #cfe0fb; }

.exp-list { display: flex; flex-direction: column; gap: 16px; }
.exp-org { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.exp-org-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.exp-org-head h3 { font-size: 1.02rem; margin: 0; }
.exp-period { color: var(--text-subtle); font-size: 0.8rem; }
.exp-role { padding: 8px 0; border-top: 1px solid var(--border); }
.exp-role-head { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.exp-role-title { color: var(--text); font-size: 0.9rem; }
.exp-role-period { color: var(--text-muted); font-size: 0.8rem; white-space: nowrap; }
.exp-role-desc { color: var(--text-muted); font-size: 0.84rem; line-height: 1.55; margin-top: 4px; }
.exp-media { margin-top: 8px; }
.exp-media-label { display: block; color: var(--text-subtle); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.exp-media-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 3px; }
.exp-media-list a { color: var(--text-muted); font-size: 0.82rem; }
.exp-media-list a:hover { color: var(--accent); }
.exp-media-list i { color: var(--accent); font-size: 0.95rem; vertical-align: -2px; margin-right: 4px; }

.honor-list { display: flex; flex-direction: column; gap: 10px; }
.honor-item { display: flex; gap: 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.honor-year { color: var(--accent); font-weight: 600; font-size: 0.9rem; min-width: 48px; }
.honor-title { color: var(--text); font-weight: 500; font-size: 0.95rem; }
.honor-issuer { color: var(--text-muted); font-size: 0.82rem; }
.honor-desc { color: var(--text-subtle); font-size: 0.84rem; margin-top: 4px; }

.lang-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.lang-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; display: flex; flex-direction: column; gap: 2px; }
.lang-name { color: var(--text); font-weight: 500; }
.lang-level { color: var(--text-muted); font-size: 0.82rem; }

.ip-scope { color: var(--accent); }
.ip-note { color: var(--text-subtle); font-size: 0.85rem; font-weight: 400; }
.ip-list { color: var(--text-muted); padding-left: 1.1rem; margin: 8px 0 0; }
.ip-list li { margin: 4px 0; }
#ip h3 { color: var(--text); }

.counters { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; margin-bottom: 22px; }
.counter-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 12px; cursor: pointer; text-align: center; transition: border-color .15s, transform .12s; font-family: inherit; }
.counter-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.counter-n { display: block; color: var(--accent); font-size: 1.7rem; font-weight: 600; line-height: 1.1; }
.counter-l { color: var(--text-muted); font-size: 0.82rem; }
.pubchart { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.pubchart-title { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 8px; }
.pc-bar { cursor: pointer; }
.pc-bar:hover rect { opacity: 0.8; }
.hero-badges { margin-top: 16px; }
.hero-badges-row { display: inline-flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.hero-badges-row:hover { text-decoration: none; }
.hero-badges-row img { height: 20px; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 12px; }
.lg-item { display: inline-flex; align-items: center; gap: 6px; color: var(--text-muted); font-size: 0.78rem; }
.lg-dot { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }
.hero-tech { margin-top: 20px; }
.hero-tech-label { color: var(--hero-muted); font-size: 0.74rem; text-transform: uppercase; letter-spacing: .05em; }
.hero-tech-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 8px; }
.tech-tag { background: rgba(255, 255, 255, 0.1); color: #dce6f5; font-size: 0.78rem; padding: 4px 11px; border-radius: 999px; transition: transform .12s; }
.tech-tag:hover { transform: translateY(-2px); }

.more-btn { display: block; width: fit-content; margin: 22px auto 0; background: var(--surface); border: 1px solid var(--border); color: var(--text); padding: 11px 26px; border-radius: 999px; cursor: pointer; font-size: 0.9rem; font-weight: 500; transition: border-color .15s, color .15s; }
.more-btn:hover { color: var(--accent); border-color: var(--accent); }

.media-list { display: flex; flex-direction: column; gap: 2px; }
.media-item { display: flex; gap: 12px; padding: 8px 4px; border-bottom: 1px solid var(--border); align-items: baseline; }
.media-date { color: var(--text-subtle); font-size: 0.78rem; font-variant-numeric: tabular-nums; white-space: nowrap; min-width: 88px; }
.media-item a { color: var(--text); font-size: 0.9rem; }
.media-item a:hover { color: var(--accent); }

.sup-list { display: flex; flex-direction: column; gap: 8px; }
.sup-item { display: flex; gap: 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; }
.sup-year { color: var(--accent); font-weight: 600; font-size: 0.88rem; min-width: 42px; }
.sup-title { color: var(--text); font-size: 0.92rem; }
.sup-meta { color: var(--text-muted); font-size: 0.8rem; margin-top: 2px; }
.sup-type { color: var(--text); }

.rec-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.rec-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin: 0; }
.rec-card blockquote { margin: 0 0 12px; color: var(--text); font-size: 0.92rem; line-height: 1.6; }
.rec-card figcaption { display: flex; flex-direction: column; gap: 1px; border-top: 1px solid var(--border); padding-top: 10px; }
.rec-name { color: var(--text); font-weight: 500; }
.rec-role { color: var(--text-muted); font-size: 0.82rem; }
.rec-rel { color: var(--text-subtle); font-size: 0.78rem; }

@media (max-width: 600px) {
  section { padding: 48px 0; }
  .hero { padding: 72px 0 56px; }
  .container { padding: 0 18px; }
}
img { max-width: 100%; height: auto; }