:root{
  --paper:#F4F1EA;
  --paper-2:#EDE9DF;
  --ink:#121212;
  --ink-2:#2a2a28;
  --muted:#6b6a63;
  --rule:rgba(18,18,18,0.14);
  --rule-2:rgba(18,18,18,0.08);
  --accent: oklch(0.72 0.17 165);
  --accent-2: oklch(0.70 0.17 55);
  --accent-3: oklch(0.62 0.18 285);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0;background:var(--paper);color:var(--ink);
  font-family:'Inter',system-ui,sans-serif;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
section[id]{scroll-margin-top:80px}
a{color:inherit;text-decoration:none}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:11px;letter-spacing:0.04em;text-transform:uppercase}
em{font-family:'Instrument Serif',Georgia,serif;font-weight:400;font-style:italic}
.hidden{display:none}

/* ===== layout frame ===== */
.page{max-width:1400px;margin:0 auto;padding:0 28px}

header.top{
  position:sticky;top:0;z-index:40;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:color-mix(in oklab, var(--paper) 82%, transparent);
  border-bottom:1px solid var(--rule-2);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:-0.01em}
.brand-sub{color:var(--muted);font-weight:400}
.brand .brand-logo{display:block;height:34px;width:auto;max-width:none;flex:0 0 auto;object-fit:contain}
.nav ul{display:flex;gap:22px;list-style:none;padding:0;margin:0}
.nav ul a{font-size:13.5px;color:var(--ink-2);transition:color .2s}
.nav ul a:hover{color:var(--ink)}
.nav .cta{
  font-size:12.5px;padding:7px 12px;border:1px solid var(--ink);border-radius:999px;
  display:inline-flex;align-items:center;gap:8px;transition:background .2s,color .2s;
}
.nav .cta:hover{background:var(--ink);color:var(--paper)}
.nav .cta .arrow{display:inline-block;transform:translateY(-1px)}

/* ===== hero ===== */
.hero{
  position:relative;
  padding:72px 0 24px;
  overflow:hidden;
}
/* index hero has the SVG raster at the bottom — keep its rule + breathing room */
.hero:has(.raster){padding-bottom:80px;border-bottom:1px solid var(--rule)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px}
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--muted)}
.eyebrow .bip{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 3px color-mix(in oklab, var(--accent) 30%, transparent);
  animation:pulse 2.2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.25);opacity:.7}}

h1.display{
  font-family:'Playfair Display',Georgia,serif;
  font-weight:400;
  font-style:normal;
  font-size:clamp(40px, 5.8vw, 76px);
  line-height:1.05;letter-spacing:-0.005em;
  margin:22px 0 0;
  max-width:22ch;
  text-wrap:balance;
}
h1.display strong{font-weight:700}
.hero-eyebrow{font-size:17px}

.hero-sub{
  margin-top:28px;max-width:72ch;
  font-family:'Fira Code',ui-monospace,monospace;
  font-size:14.5px;line-height:1.62;letter-spacing:-0.005em;
  color:var(--ink-2);
}
.hero-meta{
  display:flex;gap:26px;flex-wrap:wrap;margin-top:38px;
  padding-top:22px;border-top:1px solid var(--rule-2);
  color:var(--muted);
}
.hero-meta .cell strong{display:block;color:var(--ink);font-weight:500;margin-top:4px;font-size:14px;text-transform:none;letter-spacing:0;font-family:'Playfair Display',Georgia,serif}
.hero-meta .cell strong a{color:inherit;border-bottom:1px dotted var(--rule);transition:border-color .15s}
.hero-meta .cell strong a:hover{border-bottom-color:var(--ink)}
.hero-meta .recruiting{color:var(--accent)}

.raster{
  position:absolute;inset:auto 0 -1px 0;
  margin:0 auto;max-width:1400px;
  height:120px;pointer-events:none;opacity:.85;
  mask-image:linear-gradient(to top, black 20%, transparent 100%);
  -webkit-mask-image:linear-gradient(to top, black 20%, transparent 100%);
}

/* ===== section chrome ===== */
section.block{padding:96px 0;border-bottom:1px solid var(--rule)}
section.block.mission{padding:64px 0}
section.block.teaser{padding:72px 0}

/* ===== subpage hero (small intro header on non-landing pages) ===== */
.subpage-hero{
  padding:64px 0 40px;
  border-bottom:1px solid var(--rule);
}
.subpage-title{
  font-family:'Inter',sans-serif;
  font-weight:500;
  font-size:clamp(32px, 4.2vw, 56px);
  line-height:1.05;letter-spacing:-0.03em;
  margin:20px 0 0;max-width:22ch;
  text-wrap:balance;
}
.subpage-lede{
  margin-top:22px;color:var(--ink-2);font-size:16.5px;line-height:1.6;max-width:64ch;
}
.inline-link{border-bottom:1px solid var(--rule)}
.inline-link:hover{border-color:var(--ink)}

/* ===== research landing tiles ===== */
.research-tiles{
  display:grid;grid-template-columns:repeat(5, 1fr);gap:16px;
}
.rtile{
  display:flex;flex-direction:column;gap:0;padding:0;
  background:#fbfaf6;border:1px solid var(--rule-2);border-radius:14px;overflow:hidden;
  text-decoration:none;color:inherit;
  transition:border-color .2s, transform .2s;
}
.rtile:hover{border-color:var(--ink);transform:translateY(-2px)}
.rtile-fig{
  aspect-ratio:1;width:100%;position:relative;overflow:hidden;
  background:#FFFDF7;border-bottom:1px solid var(--rule-2);
}
.rtile-fig img{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:contain}
.rtile-fig video{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:cover}
/* Tile 03 thumbnail — zoom in 1.5x; origin 50% 55% centers content vertically
   (the SVG content sits ~10px below its canvas center, so 55% — not 50% — gives
   equal whitespace above and below) */
.rtile[data-num="03"] .rtile-fig img{transform:scale(1.5);transform-origin:50% 55%}
.rtile-body{display:flex;flex-direction:column;gap:3px;padding:11px 13px 13px}
.rtile-tag{
  font-family:'JetBrains Mono',monospace;font-size:11.5px;letter-spacing:0.04em;
  text-transform:uppercase;color:var(--muted);
}
.rtile-tag .num{color:var(--ink);margin-right:6px}
.rtile-title{font-size:14.5px;font-weight:500;letter-spacing:-0.005em;line-height:1.25}
.rtile-one{display:none}

.section-more{margin-top:32px;color:var(--muted)}
.section-more a{border-bottom:1px solid var(--rule);padding-bottom:2px}
.section-more a:hover{color:var(--ink);border-color:var(--ink)}
.section-more .sep{margin:0 10px;color:var(--rule)}
.section-head{
  display:flex;justify-content:space-between;align-items:baseline;gap:24px;
  margin-bottom:40px;padding-bottom:14px;border-bottom:1px solid var(--rule-2);
}
.section-head h2{
  font-family:'JetBrains Mono',ui-monospace,monospace;
  font-size:17px;letter-spacing:0.04em;text-transform:uppercase;
  font-weight:500;color:var(--ink);margin:0;
}
.section-head h2 .sec,
.hero-eyebrow .sec{color:var(--muted);margin-right:14px;font-weight:400}
.section-head .ref{
  font-family:'JetBrains Mono',ui-monospace,monospace;
  font-size:12px;letter-spacing:0.06em;text-transform:uppercase;
  color:var(--muted);white-space:nowrap;
}
.section-head .ref a{border-bottom:1px solid var(--rule-2);padding-bottom:1px;transition:border-color .15s,color .15s}
.section-head .ref a:hover{color:var(--ink);border-color:var(--ink)}

.two-col-text{display:grid;grid-template-columns:1fr 1fr;gap:48px;color:var(--ink-2);font-size:16.5px;line-height:1.65;max-width:1100px}

/* ===== join page ===== */
.join-stack{display:flex;flex-direction:column;gap:48px}
.join-section .section-head{margin-bottom:24px}
.join-prose{color:var(--ink-2);font-size:16px;line-height:1.7;max-width:880px}
.join-prose p{margin:0 0 16px}
.join-prose ul{margin:0 0 18px;padding-left:22px}
.join-prose li{margin:4px 0}
.join-prose a{border-bottom:1px solid var(--rule);transition:border-color .15s,color .15s}
.join-prose a:hover{color:var(--ink);border-color:var(--ink)}

/* ===== research cards ===== */
.research-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.proj{
  grid-column:span 6;
  background:#fbfaf6;
  border:1px solid var(--rule-2);
  border-radius:18px;
  padding:22px;
  display:flex;flex-direction:column;gap:14px;
  transition:transform .25s ease, border-color .2s ease;
}
.proj:hover{transform:translateY(-2px);border-color:var(--rule)}
.proj.wide{grid-column:span 12}
.proj .figure{
  aspect-ratio:16/9;border-radius:10px;overflow:hidden;position:relative;
  background:#FFFDF7;
}
.proj .figure img{width:100%;height:100%;object-fit:contain;display:block;border:0}
.proj .figure video{width:100%;height:100%;object-fit:cover;display:block;border:0}
.proj .figure iframe{width:100%;height:100%;display:block;border:0}
.proj .tag{display:inline-flex;align-items:center;gap:8px;color:var(--muted)}
.proj .tag .sq{width:8px;height:8px;background:var(--accent)}
.proj h3{font-size:22px;line-height:1.2;margin:0;font-weight:500;letter-spacing:-0.01em}
.proj p{margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.55}
.proj .foot{
  display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--rule-2);
}
.proj .foot a{
  font-family:'JetBrains Mono',ui-monospace,monospace;
  font-size:11.5px;letter-spacing:0.04em;text-transform:uppercase;
  color:var(--ink-2);
  border-bottom:1px solid var(--rule-2);padding-bottom:1px;
  transition:color .15s,border-color .15s;
}
.proj .foot a:hover{color:var(--ink);border-color:var(--ink)}

/* ===== publications ===== */
.pub-controls{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:30px;align-items:center}
.chip{
  border:1px solid var(--rule);background:transparent;cursor:pointer;
  padding:7px 12px;border-radius:999px;font:inherit;font-size:12.5px;color:var(--ink-2);
  transition:all .15s;
}
.chip:hover{border-color:var(--ink)}
.chip.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chip-sep{color:var(--rule);padding:0 4px}

.pub{
  display:grid;grid-template-columns:70px 1fr 170px 140px;gap:24px;
  padding:18px 0;border-top:1px solid var(--rule-2);
  align-items:baseline;
}
.pub:first-of-type{border-top:1px solid var(--rule)}
.pub .year{font-variant-numeric:tabular-nums;color:var(--muted);font-family:'JetBrains Mono',monospace;font-size:12px}
.pub .title{font-size:15.5px;line-height:1.4;letter-spacing:-0.005em}
.pub .authors{margin-top:5px;color:var(--muted);font-size:12.5px;line-height:1.5}
.pub .venue{color:var(--ink-2);font-size:13px;font-style:italic}
.pub .venue .note{font-style:normal;color:var(--muted);margin-left:6px;font-size:11px;letter-spacing:0.04em;text-transform:uppercase}
.pub .links{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}
.pub .links a{
  font-size:12px;padding:3px 9px;border:1px solid var(--rule);border-radius:999px;color:var(--ink-2);
  transition:all .15s;
}
.pub .links a:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}

.chip-count{margin-left:6px;color:var(--muted);font-variant-numeric:tabular-nums}
.chip.on .chip-count{color:var(--paper);opacity:0.7}

.pub-empty{padding:40px 0;color:var(--muted);font-family:'JetBrains Mono',monospace;font-size:12px}
.pub-section-head{
  font-family:'JetBrains Mono',monospace;font-size:13px;letter-spacing:0.06em;
  text-transform:uppercase;color:var(--ink);font-weight:500;
  margin:64px 0 8px;padding-top:32px;border-top:1px solid var(--rule);
}
.pub-section-head .count{color:var(--muted);margin-left:8px;font-weight:400}
.pub-section-sub{color:var(--muted);font-size:13px;line-height:1.55;max-width:64ch;margin:0 0 20px}

/* ===== PI ===== */
.pi-wrap{display:grid;grid-template-columns:1.1fr 1.6fr;gap:48px;align-items:start}
.pi-card{
  aspect-ratio:4/5;border-radius:20px;overflow:hidden;position:relative;
  background:linear-gradient(135deg,#d2dbd3 0%,#c1b4a6 100%);
}
.pi-card::before{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.05) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.04) 0 1px, transparent 1px 6px);
}
.pi-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;z-index:1}
.pi-card .initials{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:'Instrument Serif',serif;font-style:italic;color:#111;font-size:220px;line-height:1;opacity:.22;
  user-select:none;
}
.pi-card .cap{position:absolute;left:14px;bottom:12px;color:#111;opacity:.55}

.pi-info h3{font-size:28px;line-height:1.15;letter-spacing:-0.02em;font-weight:500;margin:0}
.pi-info .title-line{color:var(--muted);margin-top:8px;font-size:14px}
.pi-info p{color:var(--ink-2);line-height:1.65;font-size:15.5px;max-width:58ch;margin:22px 0 0}
.pi-info p:first-child{margin-top:0}
.pi-info p a{border-bottom:1px solid var(--ink);transition:color .15s,border-color .15s}
.pi-info p a:hover{color:var(--accent-3);border-bottom-color:var(--accent-3)}
.pi-details{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:28px}
.pi-details h4{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:0.08em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
.pi-details ul{margin:0;padding-left:0;list-style:none;font-size:13.5px;line-height:1.7;color:var(--ink-2)}
.pi-info .pi-links{display:flex;gap:8px;margin-top:26px;flex-wrap:wrap}
.pi-info .pi-links a{font-size:12.5px;padding:7px 13px;border-radius:999px;border:1px solid var(--rule);color:var(--ink-2);transition:all .15s;font-family:'JetBrains Mono',monospace;letter-spacing:0.04em;text-transform:uppercase}
.pi-info .pi-links a:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ===== team ===== */
.team-group{margin-bottom:48px}
.team-group:last-child{margin-bottom:0}
.team-group h3{
  font-size:14px;font-family:'JetBrains Mono',monospace;letter-spacing:0.08em;text-transform:uppercase;
  color:var(--muted);margin:0 0 20px;padding-bottom:10px;border-bottom:1px solid var(--rule-2);
  font-weight:500;
}
.team-group .count{color:var(--ink);margin-left:8px}

.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.team-grid.dense{grid-template-columns:repeat(6,1fr);gap:16px}
.team-grid.landing{grid-template-columns:repeat(6,1fr);gap:16px}
.team-grid.expanded{grid-template-columns:repeat(3,1fr);gap:28px}
.team-grid.landing .rs, .team-grid.landing .bg{display:none}
.person.is-pi .avatar{border:1px solid var(--ink)}
.person .bg{font-size:12px;color:var(--muted);line-height:1.45;font-style:italic}
.team-grid.expanded .avatar{border-radius:16px}
.team-grid.expanded .nm{font-size:16px}
.team-grid.expanded .rl{font-size:13px}
.team-grid.expanded .rs{font-size:13px;color:var(--ink-2)}
.person{display:flex;flex-direction:column;gap:10px}
.person .avatar{
  aspect-ratio:1;border-radius:14px;position:relative;overflow:hidden;
  background:var(--paper-2);
  border:1px solid var(--rule-2);
}
.person .avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.person a.avatar{display:block;cursor:pointer;transition:opacity .15s}
.person a.avatar:hover{opacity:.85}
.person .avatar::after{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(circle at 50% 62%, rgba(0,0,0,0.10) 0 38%, transparent 39%),
    radial-gradient(circle at 50% 32%, rgba(0,0,0,0.14) 0 14%, transparent 15%);
}
.person .avatar.has-photo::after{display:none}
.person .avatar .init{
  position:relative;z-index:1;height:100%;display:flex;align-items:center;justify-content:center;
  font-family:'Instrument Serif',serif;font-style:italic;font-size:30px;color:var(--ink);opacity:.55;
}
.person .nm{font-size:14.5px;font-weight:500;letter-spacing:-0.005em}
.person .rl{font-size:12.5px;color:var(--muted);line-height:1.45}
.person .rs{font-size:12px;color:var(--ink-2);line-height:1.45;margin-top:2px}
.person .lnks{display:flex;gap:8px;margin-top:4px;flex-wrap:wrap}
.person .lnks a{font-size:11px;color:var(--muted);border-bottom:1px dotted var(--rule)}
.person .lnks a:hover{color:var(--ink);border-color:var(--ink)}

.team-foot{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--rule-2);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;
}
.alumni-note{color:var(--muted)}
.alumni-link{border-bottom:1px solid var(--rule);padding-bottom:2px;cursor:pointer}
.alumni-link:hover{border-color:var(--ink);color:var(--ink)}

.alumni{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 40px;margin-top:24px}
.alum{font-size:13.5px;color:var(--ink-2);line-height:1.5;padding:8px 0;border-top:1px solid var(--rule-2)}
.alum:nth-child(-n+2){border-top:1px solid var(--rule)}
.alum .nm{font-weight:500;color:var(--ink)}
.alum .dg{color:var(--muted);font-size:12px;margin-left:8px}
.alum .now{color:var(--muted);display:block;margin-top:2px;font-size:12.5px}

.alumni-section{margin-top:72px;padding-top:48px;border-top:1px solid var(--rule)}
.alumni-head{font-size:clamp(24px,2.6vw,34px);font-weight:500;letter-spacing:-0.02em;margin:0}
.alumni-sub{color:var(--muted);margin:8px 0 0;font-size:14px;max-width:64ch}

/* ===== news ===== */
.news{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px}
.news .item{
  padding:22px 0;border-top:1px solid var(--rule-2);
  display:grid;grid-template-columns:90px 1fr;gap:18px;align-items:baseline;
}
.news .item:first-child,.news .item:nth-child(2){border-top:1px solid var(--rule)}
.news .item .d{color:var(--muted)}
.news .item h4{margin:0;font-size:15.5px;font-weight:500;line-height:1.4;letter-spacing:-0.005em}
.news .item p{margin:4px 0 0;color:var(--ink-2);font-size:13.5px;line-height:1.55}
.news .item p a{border-bottom:1px solid var(--rule);transition:border-color .15s,color .15s}
.news .item p a:hover{color:var(--ink);border-color:var(--ink)}

/* ===== join ===== */
.join{padding:64px 0 80px;border-bottom:1px solid var(--rule)}
.join-card{
  position:relative;background:var(--ink);color:var(--paper);
  border-radius:22px;padding:56px 56px 52px;overflow:hidden;
}
.join-card .eyebrow{color:rgba(244,241,234,0.55)}
.join-card .eyebrow .bip{background:var(--accent-2);box-shadow:0 0 0 3px color-mix(in oklab, var(--accent-2) 35%, transparent)}
.join-card h2{font-size:clamp(30px,3.4vw,48px);line-height:1.08;letter-spacing:-0.03em;font-weight:500;max-width:16ch;margin:18px 0 0}
.join-card .cols{display:grid;grid-template-columns:1.2fr .9fr;gap:48px;margin-top:32px;align-items:center}
.join-card p{color:rgba(244,241,234,0.75);line-height:1.6;font-size:15px;max-width:52ch;margin:18px 0 0}
.join-card .roles{display:flex;flex-direction:column;gap:10px}
.join-card .roles a{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 18px;border:1px solid rgba(244,241,234,0.2);border-radius:12px;
  transition:background .15s,border-color .15s;
}
.join-card .roles a:hover{background:rgba(244,241,234,0.06);border-color:var(--accent)}
.join-card .roles .role{font-size:15px}
.join-card .roles .meta{color:rgba(244,241,234,0.55);font-size:12px;margin-top:2px}
.join-card .arrow-cta{color:var(--accent);font-size:22px}
.join-raster{position:absolute;right:-40px;top:-40px;width:420px;height:420px;opacity:.22;pointer-events:none}

/* ===== footer ===== */
footer{padding:56px 0 40px;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.foot-grid .brand{margin-bottom:12px}
.foot-addr{margin:0;color:var(--ink-2);font-size:13.5px;line-height:1.6;max-width:38ch}
.foot-grid h5{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:0.08em;text-transform:uppercase;margin:0 0 14px;color:var(--ink);font-weight:500}
.foot-grid a{display:block;padding:4px 0;font-size:13.5px;color:var(--ink-2)}
.foot-grid a:hover{color:var(--accent-3)}
.foot-bot{
  display:flex;justify-content:space-between;align-items:center;
  margin-top:48px;padding-top:20px;border-top:1px solid var(--rule-2);
  font-size:12px;
}

/* ===== responsive ===== */
@media (max-width: 960px){
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:32px}
  .proj{grid-column:span 12}
  .pub{grid-template-columns:60px 1fr}
  .pub .venue, .pub .links{grid-column:2}
  .pi-wrap{grid-template-columns:1fr}
  .pi-details{grid-template-columns:1fr}
  .team-grid, .team-grid.dense, .team-grid.landing{grid-template-columns:repeat(3,1fr)}
  .team-grid.expanded{grid-template-columns:repeat(2,1fr)}
  .news{grid-template-columns:1fr}
  .join-card{padding:36px 28px}
  .join-card .cols{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .two-col-text{grid-template-columns:1fr}
  .nav ul{display:none}
  .alumni{grid-template-columns:1fr}
  .research-tiles{grid-template-columns:repeat(3,1fr)}
}
@media (max-width: 560px){
  .team-grid, .team-grid.dense, .team-grid.landing{grid-template-columns:repeat(2,1fr)}
  .team-grid.expanded{grid-template-columns:1fr}
  section.block{padding:72px 0}
  .research-tiles{grid-template-columns:repeat(2,1fr)}
}