/* ══════════════════════════════════════════════
   Emotion & Culture Lab — shared Material Design 3 (Material You) theme
   Token system shared with the weekly journal (assets/style.css). Every color
   role derives from a single --accent so the whole UI re-tones per page.
   ══════════════════════════════════════════════ */
:root {
  --accent: hsl(16, 64%, 46%);

  /* neutrals tinted by the source */
  --bg: color-mix(in srgb, var(--accent) 6%, #fbf8fd);
  --surface: color-mix(in srgb, var(--accent) 4%, #fdfcff);
  --surface-1: color-mix(in srgb, var(--accent) 6%, #fdfcff);
  --surface-2: color-mix(in srgb, var(--accent) 9%, #fdfcff);
  --surface-3: color-mix(in srgb, var(--accent) 12%, #fdfcff);

  /* on-surface text roles */
  --ink: color-mix(in srgb, var(--accent) 22%, #1b1b1f);
  --ink-soft: color-mix(in srgb, var(--accent) 18%, #303034);
  --muted: color-mix(in srgb, var(--accent) 16%, #5a5a62);
  --outline: color-mix(in srgb, var(--accent) 18%, #c6c5ce);
  --outline-soft: color-mix(in srgb, var(--accent) 10%, #e3e1ea);

  /* primary roles */
  --primary: var(--accent);
  --on-primary: #ffffff;
  --primary-container: color-mix(in srgb, var(--accent) 20%, white);
  --on-primary-container: color-mix(in srgb, var(--accent) 70%, black);

  /* secondary roles */
  --secondary-container: color-mix(in srgb, var(--accent) 16%, white);
  --on-secondary-container: color-mix(in srgb, var(--accent) 72%, black);

  /* state layers */
  --state-hover: color-mix(in srgb, var(--accent) 8%, transparent);
  --state-press: color-mix(in srgb, var(--accent) 12%, transparent);

  /* shape scale */
  --shape-xs: 8px;
  --shape-sm: 12px;
  --shape-md: 16px;
  --shape-lg: 24px;
  --shape-xl: 28px;
  --shape-full: 999px;

  /* elevation */
  --elev-1: 0 1px 2px rgba(0, 0, 0, 0.1), 0 1px 3px 1px rgba(0, 0, 0, 0.06);
  --elev-2: 0 1px 2px rgba(0, 0, 0, 0.1), 0 2px 6px 2px rgba(0, 0, 0, 0.08);
  --elev-3: 0 4px 8px 3px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.12);

  /* typography */
  --brand: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Roboto,
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* expressive type scale */
  --display-size: clamp(2.4rem, 5vw, 3.6rem);
  --display-weight: 800;
  --headline-size: clamp(1.6rem, 2.5vw, 2.1rem);
  --headline-weight: 750;
  --title-size: 1.3rem;
  --title-weight: 700;
  --label-track: 0.08em;

  /* motion */
  --ease-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* layout */
  --w: 1100px;
  --appbar-h: 64px;
}

[data-theme="dark"] {
  --bg: color-mix(in srgb, var(--accent) 5%, #111118);
  --surface: color-mix(in srgb, var(--accent) 4%, #1d1b20);
  --surface-1: color-mix(in srgb, var(--accent) 6%, #1d1b20);
  --surface-2: color-mix(in srgb, var(--accent) 8%, #1d1b20);
  --surface-3: color-mix(in srgb, var(--accent) 11%, #1d1b20);
  --ink: #e6e0e9;
  --ink-soft: #cac4d0;
  --muted: #938f99;
  --outline: color-mix(in srgb, var(--accent) 16%, #5a5660);
  --outline-soft: color-mix(in srgb, var(--accent) 10%, #3a3640);
  --primary-container: color-mix(in srgb, var(--accent) 28%, #1d1b20);
  --on-primary-container: color-mix(in srgb, var(--accent) 85%, white);
  --secondary-container: color-mix(in srgb, var(--accent) 22%, #1d1b20);
  --on-secondary-container: color-mix(in srgb, var(--accent) 85%, white);
  --elev-1: 0 1px 3px 1px rgba(0, 0, 0, 0.25), 0 1px 2px rgba(0, 0, 0, 0.3);
  --elev-2: 0 2px 6px 2px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.35);
  --elev-3: 0 4px 8px 3px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.35);
}

/* ── reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--brand);
  font-size: clamp(16px, 1vw + 11px, 18px);
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* sticky footer: body fills the viewport, content grows, footer sits at base */
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
[hidden] { display: none !important; }
a { color: var(--primary); }

#progress-bar {
  position: fixed; top: 0; left: 0; height: 4px; width: 0;
  background: var(--primary);
  border-radius: 0 var(--shape-full) var(--shape-full) 0;
  z-index: 1000; transition: width 0.1s linear;
}

/* ══════════════════════════════════════════════
   Top app bar
   ══════════════════════════════════════════════ */
.site-appbar {
  position: sticky; top: 0; z-index: 980;
  display: flex; align-items: center; gap: 1rem;
  height: var(--appbar-h);
  padding: 0 1.25rem;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--outline-soft);
}
.appbar-brand {
  display: flex; align-items: center; gap: 0.65rem;
  text-decoration: none; color: var(--primary); flex-shrink: 0;
}
.appbar-logo { display: grid; place-items: center; line-height: 0; }
.appbar-logo svg, .appbar-logo img { display: block; height: 34px; width: auto; }
.appbar-titles { display: flex; flex-direction: column; line-height: 1.15; }
.appbar-name {
  font-weight: 750; font-size: 1.02rem; color: var(--ink); letter-spacing: -0.01em;
}
.appbar-sub { font-size: 0.72rem; font-weight: 500; color: var(--muted); }

.appbar-nav { display: flex; align-items: center; gap: 0.1rem; margin-left: auto; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 0.1rem;
  padding: 0.5rem 0.62rem;
  font-size: 0.88rem; font-weight: 600; color: var(--ink-soft);
  text-decoration: none; border-radius: var(--shape-full);
  white-space: nowrap;
  transition: background-color 0.2s var(--ease-standard), color 0.2s var(--ease-standard);
}
.nav-link:hover { background: var(--state-hover); color: var(--primary); }
.nav-caret { opacity: 0.7; }
.nav-submenu {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 180px;
  background: var(--surface-2); border: 1px solid var(--outline-soft);
  border-radius: var(--shape-md); box-shadow: var(--elev-2);
  padding: 0.4rem; display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity 0.2s var(--ease-standard), transform 0.2s var(--ease-emphasized), visibility 0.2s;
  z-index: 30;
}
.nav-item.has-children:hover .nav-submenu,
.nav-item.has-children:focus-within .nav-submenu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-subitem {
  padding: 0.5rem 0.8rem; font-size: 0.88rem; font-weight: 500;
  color: var(--ink-soft); text-decoration: none; border-radius: var(--shape-sm);
  transition: background-color 0.15s var(--ease-standard), color 0.15s var(--ease-standard);
}
.nav-subitem:hover { background: var(--state-hover); color: var(--primary); }

/* overflow "More" menu (opened by click via JS) */
.nav-more-btn { border: none; background: transparent; cursor: pointer; font-family: var(--brand); }
.nav-more-menu { right: 0; left: auto; }
.nav-more.open .nav-more-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-subitem--nested { padding-left: 1.5rem; font-size: 0.84rem; color: var(--muted); }

.appbar-actions { display: flex; align-items: center; gap: 0.3rem; }
.icon-btn {
  width: 44px; height: 44px; border: none; background: transparent;
  color: var(--muted); cursor: pointer; border-radius: var(--shape-full);
  display: grid; place-items: center; line-height: 0;
  transition: background-color 0.2s var(--ease-standard), color 0.2s var(--ease-standard),
              border-radius 0.3s var(--ease-spring), transform 0.2s var(--ease-spring);
}
.icon-btn:hover { background: var(--state-hover); color: var(--ink); }
.icon-btn:active { border-radius: var(--shape-md); transform: scale(0.9); }
.icon-btn svg { display: block; }
.nav-toggle { display: none; }

.theme-icon { position: absolute; display: grid; place-items: center; line-height: 0;
  transition: opacity 0.25s var(--ease-standard), transform 0.45s var(--ease-spring); }
[data-theme="light"] .icon-sun, html:not([data-theme]) .icon-sun {
  opacity: 0; transform: rotate(-120deg) scale(0.5); pointer-events: none; }
[data-theme="dark"] .icon-moon { opacity: 0; transform: rotate(120deg) scale(0.5); pointer-events: none; }

/* ── mobile drawer ── */
.mobile-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(320px, 84vw);
  background: var(--surface-1); box-shadow: var(--elev-3); z-index: 1001;
  transform: translateX(110%); transition: transform 0.3s var(--ease-emphasized);
  padding: calc(var(--appbar-h) + 1rem) 1rem 2rem; overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-link {
  display: block; padding: 0.7rem 1rem; font-size: 1rem; font-weight: 650;
  color: var(--ink); text-decoration: none; border-radius: var(--shape-sm);
}
.drawer-link:hover { background: var(--state-hover); }
.drawer-sublink {
  display: block; padding: 0.5rem 1rem 0.5rem 1.8rem; font-size: 0.9rem;
  font-weight: 500; color: var(--ink-soft); text-decoration: none; border-radius: var(--shape-sm);
}
.drawer-sublink:hover { background: var(--state-hover); }
.drawer-scrim {
  position: fixed; inset: 0; background: color-mix(in srgb, var(--ink) 40%, transparent);
  z-index: 1000; opacity: 0; visibility: hidden; transition: opacity 0.3s var(--ease-standard), visibility 0.3s;
}
.drawer-scrim.open { opacity: 1; visibility: visible; }

/* ══════════════════════════════════════════════
   Layout primitives
   ══════════════════════════════════════════════ */
#content { min-height: 60vh; flex: 1 0 auto; }
section { max-width: var(--w); margin: 0 auto; padding: 0 1.5rem; }
.section-h {
  position: relative; font-size: var(--title-size); font-weight: var(--title-weight);
  color: var(--ink); margin: 0 0 1.1rem; padding-left: 0.9rem;
}
.section-h::before {
  content: ""; position: absolute; left: 0; top: 0.15em; bottom: 0.1em; width: 5px;
  border-radius: var(--shape-full);
  background: linear-gradient(var(--primary), color-mix(in srgb, var(--accent) 45%, white));
}

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.7rem 1.4rem; font-family: var(--brand); font-size: 0.92rem; font-weight: 650;
  text-decoration: none; border-radius: var(--shape-full); border: none; cursor: pointer;
  transition: transform 0.25s var(--ease-spring), box-shadow 0.2s var(--ease-standard),
              background-color 0.2s var(--ease-standard);
}
.btn:active { transform: scale(0.96); }
.btn-filled { background: var(--primary); color: var(--on-primary); box-shadow: var(--elev-1); }
.btn-filled:hover { box-shadow: var(--elev-2); transform: translateY(-2px); }
.btn-tonal { background: var(--secondary-container); color: var(--on-secondary-container); }
.btn-tonal:hover { transform: translateY(-2px); box-shadow: var(--elev-1); }

/* ══════════════════════════════════════════════
   Home — hero
   ══════════════════════════════════════════════ */
.home-hero { position: relative; text-align: center; padding-top: 3.5rem; padding-bottom: 2.5rem; overflow: hidden; }
.hero-glow {
  position: absolute; top: -40%; left: 50%; width: 90%; height: 160%;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, var(--state-hover), transparent 70%);
  pointer-events: none; z-index: 0;
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }
.hero-badge {
  display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: var(--label-track);
  text-transform: uppercase; color: var(--on-secondary-container);
  background: var(--secondary-container); padding: 0.3rem 0.9rem;
  border-radius: var(--shape-full); margin-bottom: 1.1rem;
}
.hero-title {
  font-size: var(--display-size); font-weight: var(--display-weight);
  letter-spacing: -0.02em; line-height: 1.08; margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--ink), color-mix(in srgb, var(--accent) 70%, var(--ink)));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { font-size: 1.1rem; line-height: 1.7; color: var(--ink-soft); margin: 0 auto 1.75rem; max-width: 620px; }
.hero-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

/* ── dominant Weekly Journal feature (cover + text) ── */
.journal-banner { margin-top: 1rem; margin-bottom: 3.5rem; }
.journal-card {
  position: relative; display: flex; align-items: center; gap: 2rem; overflow: hidden;
  background: var(--primary-container); color: var(--on-primary-container);
  border-radius: var(--shape-xl); padding: 2rem 2.25rem; text-decoration: none;
  box-shadow: var(--elev-1);
  transition: transform 0.35s var(--ease-spring), box-shadow 0.25s var(--ease-standard);
}
.journal-card:hover { transform: translateY(-4px); box-shadow: var(--elev-3); }
.journal-card:active { transform: translateY(-1px) scale(0.995); }
/* journal cover, framed in a rounded rectangle */
.journal-cover {
  flex-shrink: 0; width: 150px; border-radius: var(--shape-lg); overflow: hidden;
  box-shadow: var(--elev-2); background: #fff; line-height: 0;
  transition: transform 0.35s var(--ease-spring);
}
.journal-card:hover .journal-cover { transform: rotate(-2deg) scale(1.03); }
.journal-cover img { width: 100%; display: block; }
.journal-text { flex: 1; position: relative; z-index: 1; }
.journal-eyebrow {
  font-size: 0.72rem; font-weight: 700; letter-spacing: var(--label-track);
  text-transform: uppercase; color: var(--primary);
}
.journal-title {
  font-size: var(--headline-size); font-weight: var(--headline-weight);
  letter-spacing: -0.01em; margin: 0.5rem 0; color: var(--on-primary-container);
}
.journal-desc { font-size: 0.98rem; line-height: 1.65; opacity: 0.9; }
.journal-cta {
  display: inline-flex; align-items: center; gap: 0.35rem; margin-top: 1rem;
  font-weight: 700; color: var(--primary);
}
/* trailing arrow disc balances the row so there's no dead space on the right */
.journal-arrow {
  flex-shrink: 0; align-self: center; width: 56px; height: 56px; border-radius: var(--shape-full);
  display: grid; place-items: center; color: var(--on-primary); background: var(--primary);
  box-shadow: var(--elev-1); transition: transform 0.35s var(--ease-spring);
}
.journal-card:hover .journal-arrow { transform: translateX(4px); }
.journal-arrow svg { display: block; }

/* ── intro prose ── */
.prose { max-width: 760px; }
.home-intro { margin: 0 auto 3rem; }
.prose p { margin: 0 0 1rem; color: var(--ink-soft); line-height: 1.8; }
.prose a { color: var(--primary); font-weight: 600; text-decoration: none; }
.prose a:hover { text-decoration: underline; }
.prose strong { color: var(--ink); }

/* ── research interests (single consolidated, non-interactive card) ── */
.research { margin-bottom: 4rem; }
.research-card {
  position: relative; overflow: hidden;
  background: var(--surface-1); border: 1px solid var(--outline-soft);
  border-radius: var(--shape-xl); padding: 2rem 2.1rem; box-shadow: var(--elev-1);
}
/* expressive accent blob in the corner */
.research-card::after {
  content: ""; position: absolute; right: -60px; top: -60px; width: 180px; height: 180px;
  border-radius: var(--shape-full);
  background: radial-gradient(closest-side, var(--state-hover), transparent 72%);
  pointer-events: none;
}
.research-intro { color: var(--ink-soft); line-height: 1.85; max-width: 80ch; margin-bottom: 1.75rem; position: relative; z-index: 1; }
.research-areas {
  display: flex; flex-direction: column; gap: 1.75rem;
  position: relative; z-index: 1;
}
.research-area-title {
  font-size: 0.78rem; font-weight: 700; letter-spacing: var(--label-track); text-transform: uppercase;
  color: var(--primary); margin-bottom: 0.8rem;
  padding-bottom: 0.5rem; border-bottom: 2px solid var(--outline-soft);
}
.research-list { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0.5rem 1.5rem; }
.research-list li {
  position: relative; padding-left: 1.3rem; font-size: 0.92rem; line-height: 1.5; color: var(--ink-soft);
}
.research-list li::before {
  content: ""; position: absolute; left: 0; top: 0.55em; width: 7px; height: 7px;
  border-radius: var(--shape-full); background: var(--primary);
}

/* ══════════════════════════════════════════════
   Footer
   ══════════════════════════════════════════════ */
.site-footer {
  margin-top: 3rem; background: var(--surface-1);
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--primary), color-mix(in srgb, var(--accent) 45%, white)) 1;
}
.footer-inner {
  max-width: var(--w); margin: 0 auto; padding: 2.5rem 1.5rem;
  display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
}
.footer-name { font-size: 1.05rem; font-weight: 700; color: var(--ink); }
.footer-sub { font-size: 0.85rem; color: var(--muted); margin: 0.25rem 0 0.6rem; }
.footer-email { font-size: 0.9rem; color: var(--primary); text-decoration: none; }
.footer-email:hover { text-decoration: underline; }
.footer-wechat { display: flex; align-items: center; gap: 0.9rem; font-size: 0.82rem; color: var(--muted); }
.footer-wechat img { border-radius: var(--shape-sm); background: #fff; padding: 4px; }
.footer-copy {
  max-width: var(--w); margin: 0 auto; padding: 1rem 1.5rem 2rem;
  font-size: 0.8rem; color: var(--muted); border-top: 1px solid var(--outline-soft);
}

/* ══════════════════════════════════════════════
   Responsive
   ══════════════════════════════════════════════ */
/* hide the lab subtitle in the app bar a bit early to free up room */
@media (max-width: 1180px) {
  .appbar-sub { display: none; }
}
/* The priority-plus nav (JS) keeps as many tabs visible as fit and pushes the
   rest into the "More" menu, so the bar never overflows. The hamburger drawer
   is a last resort for very narrow screens where even "More" is cramped. */
@media (max-width: 560px) {
  .appbar-nav { display: none; }
  .nav-toggle { display: grid; }
}
@media (max-width: 760px) {
  .journal-card { flex-direction: column; align-items: flex-start; text-align: left; }
  .journal-cover { width: 130px; align-self: center; }
  .journal-arrow { align-self: flex-end; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ── 404 ── */
.error-page { text-align: center; padding: 5rem 1.5rem; max-width: 640px; }
.error-code {
  font-size: clamp(4rem, 14vw, 8rem); font-weight: 800; line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--accent) 45%, var(--ink)));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.error-title { font-size: 1.5rem; font-weight: 750; color: var(--ink); margin: 0.5rem 0 0.75rem; }
.error-lead { color: var(--ink-soft); margin-bottom: 1.75rem; }
.error-page .hero-actions { justify-content: center; }

/* ══════════════════════════════════════════════
   Structured pages (people, alumni, publications, courses)
   ══════════════════════════════════════════════ */
.page-head { padding-top: 2.5rem; padding-bottom: 0.5rem; }
.page-title {
  font-size: var(--headline-size); font-weight: var(--display-weight);
  letter-spacing: -0.015em; color: var(--ink);
}
.page-head .pub-legend { margin-top: 0.6rem; color: var(--muted); font-size: 0.9rem; }

/* ── People ── */
.people-group { margin-bottom: 2.75rem; }

/* non-PI members: masonry columns pack cards tightly (no awkward row gaps) */
.people-masonry {
  column-width: 230px; column-gap: 1.25rem;
}
.people-masonry .person-card {
  break-inside: avoid; margin-bottom: 1.25rem; width: 100%;
}
.person-card {
  display: flex; flex-direction: column; background: var(--surface-1);
  border: 1px solid var(--outline-soft); border-radius: var(--shape-lg);
  overflow: hidden; box-shadow: var(--elev-1);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.25s var(--ease-standard);
}
.person-card:hover { transform: translateY(-4px); box-shadow: var(--elev-2); }
/* photo fills the card width — no awkward empty space beside it */
.person-photo {
  position: relative; width: 100%; aspect-ratio: 1 / 1;
  background: var(--secondary-container); display: grid; place-items: center; overflow: hidden;
}
.person-photo img { width: 100%; height: 100%; object-fit: cover; position: relative; z-index: 1; }
.person-initials {
  position: absolute; inset: 0; display: grid; place-items: center; z-index: 0;
  font-weight: 800; font-size: 2.4rem; color: var(--on-secondary-container);
}
.person-photo.no-photo .person-initials { z-index: 2; }
.person-body { padding: 0.9rem 1.05rem 1.05rem; display: flex; flex-direction: column; gap: 0.3rem; }
.person-name { font-size: 1rem; font-weight: 700; color: var(--ink); line-height: 1.3; }
.person-name-zh { font-weight: 600; color: var(--muted); font-size: 0.9rem; }
.person-role {
  align-self: flex-start; font-size: 0.7rem; font-weight: 650; letter-spacing: 0.02em;
  color: var(--on-secondary-container); background: var(--secondary-container);
  padding: 0.15rem 0.6rem; border-radius: var(--shape-full); margin: 0.15rem 0 0.35rem;
}
.person-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.2rem; }
.person-link { font-size: 0.74rem; color: var(--primary); text-decoration: none; word-break: break-all; }
.person-link:hover { text-decoration: underline; }
.person-bio { font-size: 0.82rem; line-height: 1.55; color: var(--ink-soft); }

/* expressive: vary the photo corner shape per card (Material You) */
.person-card.shape-0 .person-photo { border-radius: 0; }
.person-card.shape-1 .person-photo { border-radius: 0 0 var(--shape-xl) 0; }
.person-card.shape-2 .person-photo { border-radius: 0 0 0 var(--shape-xl); }
.person-card.shape-3 .person-photo { border-radius: 0 0 var(--shape-lg) var(--shape-lg); }

/* featured PI card — full content width, large side-by-side photo */
.person-card--featured {
  flex-direction: row; align-items: stretch; margin-bottom: 1.75rem;
}
.person-card--featured .person-photo {
  width: 300px; flex-shrink: 0; aspect-ratio: auto; height: auto;
  border-radius: 0 !important;
}
.person-card--featured .person-body { justify-content: center; padding: 1.6rem 1.8rem; gap: 0.5rem; }
.person-card--featured .person-name { font-size: 1.45rem; }
.person-card--featured .person-bio { font-size: 0.92rem; line-height: 1.7; }

@media (max-width: 600px) {
  .person-card--featured { flex-direction: column; }
  .person-card--featured .person-photo { width: 100%; aspect-ratio: 1 / 1; }
}

/* ── Alumni ── */
.alumni-section { margin-bottom: 2.5rem; }
.advisee-group { margin-bottom: 1.75rem; }
.advisee-inst { font-size: 1rem; font-weight: 700; color: var(--ink); margin-bottom: 0.3rem; }
.advisee-note { font-size: 0.9rem; color: var(--muted); margin-bottom: 0.7rem; }
.advisee-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.advisee-list li {
  padding: 0.6rem 0.9rem; background: var(--surface-1); border: 1px solid var(--outline-soft);
  border-radius: var(--shape-sm); font-size: 0.92rem; color: var(--ink-soft); line-height: 1.5;
}
.advisee-name { font-weight: 650; color: var(--ink); }
.advisee-tag {
  font-size: 0.72rem; font-weight: 600; color: var(--on-secondary-container);
  background: var(--secondary-container); padding: 0.1rem 0.5rem;
  border-radius: var(--shape-full); margin: 0 0.2rem;
}
.advisee-current a { color: var(--primary); text-decoration: none; }
.advisee-current a:hover { text-decoration: underline; }
.past-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.25rem; }
.past-figure {
  background: var(--surface-1); border: 1px solid var(--outline-soft);
  border-radius: var(--shape-lg); padding: 0.75rem; box-shadow: var(--elev-1); overflow: hidden;
}
.past-figure img { width: 100%; border-radius: var(--shape-sm); display: block; margin-bottom: 0.5rem; }
.past-figure figcaption { font-size: 0.85rem; font-weight: 650; color: var(--muted); text-align: center; }

/* ── Publications ── */
.pubs { margin-bottom: 3rem; }
.pub-year-group { margin-bottom: 1.5rem; }
.pub-year {
  font-size: 1.5rem; font-weight: 800; color: var(--primary);
  margin: 1.5rem 0 0.75rem; letter-spacing: -0.01em;
}
.pub-card {
  background: var(--surface-1); border: 1px solid var(--outline-soft);
  border-left: 4px solid var(--primary);
  border-radius: var(--shape-md); padding: 1rem 1.2rem; margin-bottom: 0.85rem;
  transition: transform 0.25s var(--ease-spring), box-shadow 0.2s var(--ease-standard),
              border-color 0.2s var(--ease-standard);
}
.pub-card:hover { transform: translateX(4px); box-shadow: var(--elev-2); border-left-color: var(--accent-h, var(--primary)); }
.pub-link { display: block; text-decoration: none; color: inherit; }
.pub-authors { font-size: 0.92rem; color: var(--ink-soft); line-height: 1.5; }
.pub-authors strong { color: var(--ink); font-weight: 750; }
.pub-title { font-size: 0.96rem; font-weight: 650; color: var(--ink); margin: 0.3rem 0; line-height: 1.45; }
.pub-link:hover .pub-title { color: var(--primary); }
.pub-doi { color: var(--primary); word-break: break-all; }
.pub-note { font-size: 0.85rem; color: var(--muted); margin-top: 0.4rem; font-style: italic; }
.pub-pdfs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.7rem; }
.pub-pdf-btn {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.78rem; font-weight: 650; color: var(--on-primary);
  background: var(--primary); padding: 0.3rem 0.75rem; border-radius: var(--shape-full);
  text-decoration: none; transition: transform 0.2s var(--ease-spring), box-shadow 0.2s var(--ease-standard);
}
.pub-pdf-btn:hover { transform: translateY(-2px); box-shadow: var(--elev-1); }

/* ── Courses ── */
.courses { margin-bottom: 3rem; }
.course-list { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.course-item {
  display: flex; gap: 1rem; align-items: baseline;
  background: var(--surface-1); border: 1px solid var(--outline-soft);
  border-radius: var(--shape-md); padding: 0.85rem 1.1rem;
}
.course-years {
  flex-shrink: 0; width: 9rem; font-size: 0.82rem; font-weight: 700;
  color: var(--on-secondary-container);
}
.course-body { display: flex; flex-direction: column; }
.course-title { font-size: 0.96rem; font-weight: 650; color: var(--ink); }
.course-inst { font-size: 0.85rem; color: var(--muted); }

@media (max-width: 600px) {
  .course-item { flex-direction: column; gap: 0.2rem; }
  .course-years { width: auto; }
}

/* ══════════════════════════════════════════════
   Prose pages (resources, join-us, contact) + resources index
   ══════════════════════════════════════════════ */
.page-subtitle { margin-top: 0.5rem; color: var(--muted); font-size: 1rem; max-width: 70ch; }
.page-prose { padding-top: 1.5rem; padding-bottom: 3rem; }
.page-prose h2 {
  font-size: var(--title-size); font-weight: var(--title-weight);
  color: var(--ink); margin: 1.75rem 0 0.8rem;
}
.page-prose ul { margin: 0 0 1rem; padding-left: 1.2rem; }
.page-prose li { margin-bottom: 0.4rem; color: var(--ink-soft); line-height: 1.7; }
.page-prose li::marker { color: var(--primary); }

/* resources landing grid */
.resource-index { padding-bottom: 3rem; }
.resource-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem;
}
.resource-card {
  display: flex; flex-direction: column; gap: 0.5rem;
  background: var(--surface-1); border: 1px solid var(--outline-soft);
  border-radius: var(--shape-lg); padding: 1.5rem 1.6rem; text-decoration: none; color: inherit;
  box-shadow: var(--elev-1);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.25s var(--ease-standard);
}
.resource-card:hover { transform: translateY(-4px); box-shadow: var(--elev-2); }
.resource-abbr {
  align-self: flex-start; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.05em;
  color: var(--on-primary); background: var(--primary);
  padding: 0.25rem 0.7rem; border-radius: var(--shape-full);
}
.resource-name { font-size: 1.05rem; font-weight: 700; color: var(--ink); line-height: 1.35; }
.resource-blurb { font-size: 0.9rem; line-height: 1.6; color: var(--ink-soft); flex: 1; }
.resource-cta {
  display: inline-flex; align-items: center; gap: 0.3rem; margin-top: 0.4rem;
  font-size: 0.85rem; font-weight: 700; color: var(--primary);
}

/* ══════════════════════════════════════════════
   News — list + post
   ══════════════════════════════════════════════ */
.news-list { padding-bottom: 3rem; display: flex; flex-direction: column; gap: 1.1rem; }
.news-item {
  display: flex; gap: 1.25rem; text-decoration: none; color: inherit;
  background: var(--surface-1); border: 1px solid var(--outline-soft);
  border-radius: var(--shape-lg); padding: 1rem; box-shadow: var(--elev-1); overflow: hidden;
  transition: transform 0.3s var(--ease-spring), box-shadow 0.25s var(--ease-standard);
}
.news-item:hover { transform: translateY(-3px); box-shadow: var(--elev-2); }
.news-thumb {
  flex-shrink: 0; width: 160px; height: 110px; border-radius: var(--shape-md);
  overflow: hidden; background: var(--secondary-container);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.news-body { min-width: 0; display: flex; flex-direction: column; gap: 0.35rem; }
.news-meta { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.news-cat {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--on-primary); background: var(--primary);
  padding: 0.15rem 0.6rem; border-radius: var(--shape-full);
}
.news-date { font-size: 0.78rem; font-weight: 600; color: var(--muted); }
.news-headline { font-size: 1.1rem; font-weight: 700; color: var(--ink); line-height: 1.35; }
.news-excerpt { font-size: 0.88rem; line-height: 1.55; color: var(--ink-soft); }

/* post page */
.news-post { max-width: 800px; margin: 0 auto; padding: 2.5rem 1.5rem 3.5rem; }
.back-link {
  display: inline-flex; align-items: center; gap: 0.3rem; font-size: 0.85rem; font-weight: 650;
  color: var(--primary); text-decoration: none; padding: 0.4rem 0.8rem 0.4rem 0.5rem;
  border-radius: var(--shape-full); margin-bottom: 1rem;
  transition: background-color 0.2s var(--ease-standard);
}
.back-link:hover { background: var(--state-hover); }
.news-post-head { margin-bottom: 1.5rem; }
.news-post-title {
  font-size: var(--headline-size); font-weight: var(--display-weight);
  letter-spacing: -0.015em; line-height: 1.15; color: var(--ink); margin-top: 0.6rem;
}
.news-gallery { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.75rem; }
.news-gallery img { width: 100%; border-radius: var(--shape-lg); box-shadow: var(--elev-1); display: block; }
.news-post-body h2 { font-size: 1.2rem; font-weight: 700; color: var(--ink); margin: 1.75rem 0 0.7rem; }
.news-post-body ol, .news-post-body ul { margin: 0 0 1rem; padding-left: 1.3rem; }
.news-post-body li { margin-bottom: 0.5rem; color: var(--ink-soft); line-height: 1.7; }
.news-post-body li::marker { color: var(--primary); }

@media (max-width: 600px) {
  .news-item { flex-direction: column; }
  .news-thumb { width: 100%; height: 180px; }
}