/* Light–Matter Intelligence Lab · Santa Fe sunset theme
   One scroll, five anchored sections in a 760px column. */
:root{
  --sand:#fbf6ef; --surface:#ffffff; --ink:#2a1f2d; --muted:#6d5f68; --line:#eadfd2;
  --dusk:#2b2350; --plum:#5a2d5e; --rose:#b9476b; --adobe:#c4572f; --orange:#e9793a; --gold:#f2b257;
  --accent:#b14a28; --accent-soft:#f8e5d8; --on-sky:#fff7ec;
  --tag-talk:#8a5a12; --tag-pre:#5a2d5e; --tag-paper:#a3365c;
  --sky:linear-gradient(165deg,#2b2350 0%,#4a2a5c 30%,#8e3a66 55%,#d0603f 78%,#f2b257 100%);
  --f-display:"Bricolage Grotesque","Helvetica Neue",Arial,sans-serif;
  --f-body:"Source Sans 3","Helvetica Neue",Arial,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --sand:#1a1524; --surface:#231c30; --ink:#f6ebdf; --muted:#bba9b4; --line:#3a2f47;
  --accent:#f29a5e; --accent-soft:#3a2530;
  --tag-talk:#f2b257; --tag-pre:#d9a9e0; --tag-paper:#ec8fb0;
  color-scheme:dark;}}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--sand);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.6;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
.gut{padding-left:max(16px, env(safe-area-inset-left, 0px));padding-right:max(16px, env(safe-area-inset-right, 0px))}
.col{max-width:760px;margin:0 auto}
h1,h2,h3{font-family:var(--f-display);line-height:1.15;text-wrap:balance;margin:0}
p{margin:0}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible,summary:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:2px}

/* nav */
nav.top{position:sticky;top:0;z-index:9;background:var(--dusk);color:var(--on-sky);padding-block:12px;padding-top:max(12px, env(safe-area-inset-top, 0px))}
nav.top .col{display:flex;align-items:center;justify-content:space-between;gap:10px 16px;flex-wrap:wrap}
.brand{font-family:var(--f-display);font-weight:700;font-size:1.08rem;color:var(--on-sky);text-decoration:none;display:flex;align-items:center;gap:9px}
.sun{width:14px;height:14px;flex:none;border-radius:50%;background:linear-gradient(180deg,var(--gold),var(--orange));box-shadow:0 0 0 3px rgba(242,178,87,.25)}
nav.top ul{list-style:none;margin:0;padding:0;display:flex;gap:18px;flex-wrap:wrap;font-weight:600;font-size:.95rem}
nav.top ul a{color:var(--on-sky);text-decoration:none;opacity:.85}
nav.top ul a:hover{opacity:1;box-shadow:0 2px 0 var(--gold)}

/* hero */
.hero{background:var(--sky);color:var(--on-sky);padding-block:56px 64px}
.hero .col{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.hero.solo .col{grid-template-columns:1fr}
.hero.solo h1{max-width:22ch}
.aff{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;opacity:.88}
.hero h1{font-size:2.5rem;font-weight:700;margin-block:10px 14px;letter-spacing:-.01em}
.hero .lead{font-size:1.1rem;max-width:46ch;opacity:.94}
.btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.btn{display:inline-block;font-weight:600;font-size:.92rem;padding:9px 16px;border-radius:999px;text-decoration:none}
.btn.gold{background:var(--gold);color:#2b2350}
.btn.ghost{border:1.5px solid rgba(255,247,236,.7);color:var(--on-sky)}
.photo-wrap{margin:0;display:grid;gap:6px}
.hero .photo{display:block;aspect-ratio:var(--hero-aspect,4/5);width:100%;height:auto;object-fit:cover;border-radius:6px;border:1px solid rgba(255,247,236,.35);box-shadow:0 18px 40px -18px rgba(20,12,40,.55)}
.photo-wrap figcaption{font-family:var(--f-mono);font-size:.68rem;opacity:.75;text-align:right}

/* sections */
section.s{padding-block:64px 8px}
.kicker{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);display:flex;align-items:center;gap:10px}
.kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--rose),var(--orange),var(--gold))}
h2{font-size:1.9rem;font-weight:700;margin-block:8px 18px}
.intro{color:var(--muted);max-width:62ch;margin-bottom:22px}

/* news */
.item{display:grid;grid-template-columns:86px 1fr;gap:16px;padding-block:14px;border-bottom:1px solid var(--line)}
.news > .item:first-child{border-top:1px solid var(--line)}
.date{font-family:var(--f-mono);font-size:.78rem;color:var(--muted);padding-top:3px;white-space:nowrap}
.tag{display:inline-block;font-family:var(--f-mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;padding:1px 7px;border-radius:3px;margin-right:6px;vertical-align:2px}
.t-group{background:var(--accent-soft);color:var(--accent)}
.t-hiring{background:var(--orange);color:#2b2350}
.item.pinned{background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--orange);border-radius:8px;padding:14px 16px;margin-bottom:6px}
.news > .item.pinned:first-child{border-top:1px solid var(--line)}
.item.pinned a{font-weight:600}
.t-paper{background:rgba(185,71,107,.14);color:var(--tag-paper)}
.t-talk,.t-award{background:rgba(242,178,87,.22);color:var(--tag-talk)}
.t-preprint{background:rgba(90,45,94,.13);color:var(--tag-pre)}
.hiring{margin-top:22px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:16px 18px;border-radius:8px;background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--orange)}
.hiring b{font-family:var(--f-display)}

/* expandable lists */
details.more{margin-top:18px;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:0 16px}
details.more summary{cursor:pointer;padding-block:12px;font-weight:600;color:var(--accent);list-style:none;display:flex;justify-content:space-between;align-items:center}
details.more summary::-webkit-details-marker{display:none}
details.more summary::after{content:"+";font-family:var(--f-mono);font-size:1.1rem}
details.more[open] summary::after{content:"–"}
details.more[open]{padding-bottom:14px}
details.more .yr:first-of-type{margin-top:4px}

/* research */
.proj{display:grid;grid-template-columns:120px 1fr;gap:20px;padding-block:20px;border-bottom:1px solid var(--line)}
.proj:first-of-type{border-top:1px solid var(--line)}
.thumb{aspect-ratio:1;width:100%;border-radius:6px;object-fit:cover}
.th1{background:linear-gradient(135deg,var(--plum),var(--orange))}
.th2{background:linear-gradient(135deg,var(--dusk),var(--rose))}
.th3{background:linear-gradient(135deg,var(--adobe),var(--gold))}
.th4{background:linear-gradient(135deg,var(--dusk),var(--orange))}
.proj h3{font-size:1.18rem;font-weight:700;margin-bottom:6px}
.proj p{color:var(--muted);font-size:.98rem;max-width:60ch}

/* publications */
.yr{font-family:var(--f-display);font-weight:700;font-size:1.05rem;margin-top:20px;padding-bottom:6px;border-bottom:2px solid var(--ink)}
.pub{padding-block:11px;border-bottom:1px solid var(--line);display:grid;gap:2px}
.pub b{font-weight:600}
.pub b a{color:var(--ink);text-decoration-color:var(--line)}
.pub b a:hover{color:var(--accent)}
.pub span{color:var(--muted);font-size:.93rem}
.pub i{color:var(--ink);font-style:italic}
.pub .au strong{color:var(--ink);font-weight:600}
.pubfoot{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:18px;font-size:.95rem;align-items:center}
.linkbtn{font:inherit;color:var(--accent);background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.linkbtn:focus-visible,.tabs button:focus-visible,.chip:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

/* publication filters */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.tabs button{font:inherit;font-size:.88rem;font-weight:600;padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.tabs button .n{font-family:var(--f-mono);font-size:.74rem;color:var(--muted);margin-left:2px}
.tabs button:hover{border-color:var(--orange)}
.tabs button.on{background:var(--dusk);border-color:var(--dusk);color:var(--on-sky)}
.tabs button.on .n{color:var(--gold)}
.pub-count{font-size:.88rem;color:var(--muted);margin:4px 0 0}
.pub .ven .typ{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.05em;text-transform:uppercase;color:var(--accent)}
.pub-actions{display:flex;flex-wrap:wrap;align-items:flex-start;gap:6px;margin-top:4px}
.chip{font-family:var(--f-mono);font-size:.72rem;font-weight:500;letter-spacing:.03em;padding:2px 8px;border:1px solid var(--line);border-radius:4px;text-decoration:none;color:var(--accent);background:var(--surface)}
.chip:hover{border-color:var(--orange)}
details.abs{flex-basis:100%}
details.abs summary{display:inline-block;cursor:pointer;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.03em;padding:2px 8px;border:1px solid var(--line);border-radius:4px;color:var(--muted);list-style:none;background:var(--surface)}
details.abs summary::-webkit-details-marker{display:none}
details.abs summary::before{content:"+ "}
details.abs[open] summary::before{content:"– "}
details.abs p{margin:8px 0 4px;font-size:.92rem;line-height:1.55;color:var(--ink);max-width:68ch}
.pub-actions details.abs{flex-basis:auto}
.pub-actions details.abs[open]{flex-basis:100%}

/* people */
.pi{display:grid;grid-template-columns:150px 1fr;gap:24px;align-items:center;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:8px}
.portrait{aspect-ratio:1;width:100%;border-radius:50%;object-fit:cover}
.pi h3{font-size:1.35rem}
.pi .role{color:var(--muted);margin-block:4px 10px}
.pi .bio{font-size:.97rem}
.pi .cv{margin-top:10px}
h3.sub{font-size:1.1rem;margin-block:32px 12px}
.openings{display:grid;grid-template-columns:1fr;gap:12px}
.open{padding:14px 16px;border-radius:8px;border:1.5px dashed var(--orange);display:grid;gap:4px;align-content:start}
.open b{font-family:var(--f-display)}
.open span{color:var(--muted);font-size:.92rem}
.open.wide{grid-column:1/-1}
.open .skills{margin:2px 0 0;padding-left:1.15em;display:grid;gap:3px;font-size:.95rem}
.open .skills li::marker{color:var(--orange)}
.open .plus{font-style:italic}
.apply{margin-top:12px;font-size:.95rem;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:18px}
.person{display:grid;gap:6px;align-content:start}
.person .ph{aspect-ratio:1;width:100%;max-width:140px;border-radius:50%;object-fit:cover;object-position:50% 22%;background:var(--line)}
.person b{font-size:.95rem;line-height:1.3}
.person b a{color:inherit;text-decoration:underline;text-decoration-color:var(--orange);text-underline-offset:3px}
.person b a:hover{color:var(--rose)}
.person span{color:var(--muted);font-size:.85rem;line-height:1.35}
.initials{display:flex;align-items:center;justify-content:center;font-family:var(--f-display);font-weight:700;font-size:1.6rem;color:#fff7ec;background:linear-gradient(160deg,var(--rose),var(--orange)) !important}
.portrait.initials{font-size:2.4rem}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.card{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:8px;display:grid;gap:6px;align-content:start}
.card .lab{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.card .lab.gap{margin-top:12px}
.sel{font-family:var(--f-mono);font-size:.92rem;overflow-wrap:anywhere}

footer{margin-top:72px;background:var(--sky);color:var(--on-sky);padding-block:28px max(28px, env(safe-area-inset-bottom, 0px))}
footer .col{display:flex;justify-content:space-between;gap:10px 16px;flex-wrap:wrap;font-size:.88rem}

@media (max-width:680px){
  body{font-size:16.5px}
  .hero{padding-block:36px 44px}
  .hero .col{grid-template-columns:1fr}
  .hero .photo-wrap{order:-1}
  .hero .photo{aspect-ratio:var(--hero-aspect,16/10)}
  .hero h1{font-size:1.9rem}
  h2{font-size:1.6rem}
  .proj{grid-template-columns:72px 1fr;gap:14px}
  .pi{grid-template-columns:1fr;justify-items:start}
  .pi .portrait{width:120px}
  .contact{grid-template-columns:1fr}
  .item{grid-template-columns:1fr;gap:2px}
  nav.top ul{gap:14px;font-size:.88rem}
}

/* research program with a full-width labeled figure */
.proj.wide{grid-template-columns:1fr}
.proj .figure{width:100%;height:auto;display:block;border-radius:8px;background:#fff;padding:10px;border:1px solid var(--line)}

/* key papers under each research program */
.keypapers{margin-top:10px;display:grid;gap:4px}
.kp-label{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.keypapers ul{margin:0;padding-left:1.1em;display:grid;gap:4px;font-size:.9rem;line-height:1.4}
.keypapers li::marker{color:var(--orange)}
.keypapers a{color:var(--ink);text-decoration-color:var(--line)}
.keypapers a:hover{color:var(--accent)}
.kp-ven{color:var(--muted);font-style:italic;font-size:.85rem}

/* openings extras */
.open .start{color:var(--ink);font-size:.92rem}
.open .open-link{font-weight:600;font-size:.92rem;justify-self:start}

/* funders */
section.funders{padding-top:48px}
.funder-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:12px}
.funder-list li{display:grid;gap:2px;padding:12px 16px;border:1px solid var(--line);border-radius:8px;background:var(--surface);min-width:0}
.funder-list a{font-family:var(--f-display);font-weight:700;color:var(--ink);text-decoration:none}
.funder-list a:hover{color:var(--accent)}
.funder-list span{font-size:.82rem;color:var(--muted)}