/* IPNL — Minimal, readable, fast. Keep it boring on purpose. */

/* ---- Variables ---- */
:root {
  --maxw: 980px;
  --accent: #1a5276;
  --accent-light: #d4e6f1;
  --border: #e8e8e8;
  --text: #111;
  --text-secondary: #333;
  --bg: #fff;
  --radius: 12px;
}

/* ---- Base ---- */
html { font-size: 16px; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Noto Sans", sans-serif;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; }

/* ---- Layout ---- */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 16px;
}
.content { padding: 28px 0 40px; }

/* ---- Header ---- */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.brand a {
  font-weight: 700;
  color: var(--text);
  font-size: 1.05rem;
}
.nav a {
  margin-right: 14px;
  color: var(--text);
  font-size: 0.95rem;
}
.nav a:last-child { margin-right: 0; }
.nav a.active { color: var(--accent); font-weight: 600; }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 1.2rem;
  cursor: pointer;
}

/* ---- Hero ---- */
.hero {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  align-items: center;
  margin: 10px 0 18px;
}
.hero img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid #eee;
}
.hero h1 { margin: 0 0 6px; line-height: 1.15; }
.hero .subtitle { margin: 0; color: var(--text-secondary); }

/* ---- Keyword tags ---- */
.kv {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px 0 20px;
}
.kv span {
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.95rem;
}

/* ---- Section ---- */
.section {
  margin: 36px 0;
}
.section h2 {
  margin: 0 0 14px;
  font-size: 1.35rem;
}
.member-groups {
  display: grid;
  gap: 24px;
}
.member-group h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--accent);
}
.group-empty {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ---- Cards grid ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 10px;
}
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent-light); }
.card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--text-secondary); font-size: 0.95rem; }
.card .meta {
  margin-top: 8px;
  font-size: 0.85rem;
  color: #666;
}

/* ---- Status badges ---- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-ongoing { background: #d5f5e3; color: #1e8449; }
.badge-completed { background: #e8e8e8; color: #555; }
.badge-current { background: #d4e6f1; color: #1a5276; }
.badge-alumni { background: #fdebd0; color: #935116; }
.badge-featured { background: #fef9e7; color: #7d6608; }
.badge-journal { background: #d4e6f1; color: #1a5276; }
.badge-conference { background: #d5f5e3; color: #1e8449; }
.badge-patent { background: #e8daef; color: #6c3483; }
.badge-magazine { background: #fadbd8; color: #922b21; }
.badge-book { background: #fdebd0; color: #935116; }
.pub-badges { margin-bottom: 4px; display: flex; gap: 4px; flex-wrap: wrap; }

/* ---- Person card ---- */
.person-card {
  text-align: center;
  padding: 18px 14px;
}
.person-card .photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 8px;
  border: 2px solid var(--border);
}
.person-card .initials {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.person-card h3 { font-size: 1rem; margin: 0 0 4px; }
.person-card .role { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

/* ---- Publication entry ---- */
.pub-entry {
  padding: 10px 0;
  border-bottom: 1px solid #f0f0f0;
}
.pub-entry:last-child { border-bottom: none; }
.pub-entry .pub-title {
  font-weight: 600;
  color: var(--text);
}
.pub-entry .pub-title a {
  color: inherit;
  text-decoration: none;
}
.pub-entry .pub-title a:hover {
  color: var(--accent);
}
.pub-entry .pub-authors {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 2px;
}
.pub-entry .pub-authors strong { color: var(--accent); }
.pub-entry .pub-venue {
  font-size: 0.9rem;
  font-style: italic;
  color: #666;
  margin-top: 2px;
}
.pub-entry .pub-links {
  margin-top: 6px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.pub-entry .pub-links a {
  font-size: 0.8rem;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--accent);
}
.pub-entry .pub-links a:hover {
  background: var(--accent-light);
  text-decoration: none;
}

/* ---- Year group (publications) ---- */
.year-group { margin: 28px 0; }
.year-group h3 {
  font-size: 1.1rem;
  margin: 0 0 8px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

/* ---- News feed ---- */
.news-item {
  padding: 12px 0;
  border-bottom: 1px solid #f0f0f0;
}
.news-item:last-child { border-bottom: none; }
.news-item .news-date {
  font-size: 0.85rem;
  color: #666;
}
.news-item .news-category {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  margin-left: 8px;
}
.news-item h3 { margin: 4px 0; font-size: 1rem; }
.news-item p { margin: 4px 0 0; color: var(--text-secondary); font-size: 0.95rem; }
.news-source {
  font-size: 0.85rem;
  color: #666;
  margin-top: 18px;
  padding-top: 10px;
  border-top: 1px solid #f0f0f0;
}
.news-source a { color: var(--accent); }

/* ---- Research theme tile ---- */
.theme-card {
  padding: 18px 16px;
}
.theme-card h3 { font-size: 1.05rem; margin: 0 0 8px; }
.theme-card p { font-size: 0.9rem; }
.theme-card .keywords {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.theme-card .keywords span {
  font-size: 0.78rem;
  padding: 2px 6px;
  background: #f5f5f5;
  border-radius: 4px;
  color: #555;
}

/* ---- Resource card ---- */
.resource-card .subtype {
  font-size: 0.78rem;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}

/* ---- Join CTA ---- */
.cta-block {
  background: #f8f9fa;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  margin: 28px 0;
}
.cta-block h2 { margin: 0 0 8px; }
.cta-block p { margin: 0 0 14px; color: var(--text-secondary); }
.cta-block .btn {
  display: inline-block;
  padding: 10px 24px;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}
.cta-block .btn:hover { text-decoration: none; opacity: 0.9; }

/* ---- People strip (homepage) ---- */
.people-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.footer-links a { color: var(--text-secondary); margin-right: 10px; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 4px;
    padding-top: 8px;
  }
  .nav.open { display: flex; }
  .nav a { margin-right: 0; padding: 6px 0; }
  .hero { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .cards { grid-template-columns: 1fr; }
  .header-inner { flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .container { padding: 0 12px; }
  .hero img { width: 100px; height: 100px; }
}

.brand-link{display:flex;align-items:center;gap:8px;}
.brand-logo{height:36px;}