:root{
  --ink:#000000;
  --paper:#FCFCFA;
  --rule:#DCDCD5;
  --rule-soft:#EBEBE5;
  --muted:#000000;   /* TEST: was #666B70 */
  --needle:#B23B2E;
  --sans:"IBM Plex Sans",system-ui,sans-serif;
  --serif:"IBM Plex Serif",Georgia,serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --measure:66ch;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  font-size:17px;
  line-height:1.65;
  font-feature-settings:"kern";
}
.wrap{max-width:1080px;margin:0 auto;padding:0 32px}
a{color:inherit;text-decoration:none;border-bottom:1px solid var(--rule);transition:border-color .12s}
a:hover{border-bottom-color:var(--ink)}
a:focus-visible{outline:2px solid var(--needle);outline-offset:3px;border-radius:2px}
p{margin:0 0 14px}

/* ---------- masthead ---------- */

header{border-bottom:1px solid var(--rule);background:var(--paper)}
.mast{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;border:0}
.brand:hover{border:0}
.brand svg{display:block}
.brand b{font-family:var(--sans);font-weight:600;font-size:20px;letter-spacing:.16em}
nav{display:flex;gap:24px;font-family:var(--sans);font-size:15px;font-weight:500;flex-wrap:wrap}
nav a{border-bottom:0;color:var(--muted)}
nav a:hover{color:var(--ink);border-bottom:0}
nav a[aria-current]{color:var(--ink)}

/* tick scale under the masthead — the instrument motif from the logo */
.scale{
  height:14px;
  border-bottom:1px solid var(--rule);
  background-image:repeating-linear-gradient(to right,var(--rule) 0 1px,transparent 1px 40px);
  background-position:bottom;
  background-size:auto 6px;
  background-repeat:repeat-x;
}

/* ---------- hero ---------- */

.hero{
  padding:76px 0 64px;border-bottom:1px solid var(--rule);
  display:grid;grid-template-columns:3fr 2fr;gap:56px;align-items:center;
}
.hero .where{font-family:var(--sans);font-size:14px;color:var(--muted);margin-bottom:22px}
.hero strong{font-weight:600}
.hero p{
  font-family:var(--sans);font-weight:400;font-size:17px;line-height:1.6;
  margin:0 0 16px;max-width:var(--measure);color:var(--ink);
}
.hero p:last-child{margin-bottom:0}
.hero-photo{margin:0;width:100%}
.hero-photo img{
  width:100%;aspect-ratio:3/2;object-fit:cover;display:block;
  border-radius:2px;background:var(--rule-soft);
}
.hero-photo img[src$="group2.png"]{filter:grayscale(1)}
/* stands in for the photo, and reads as deliberate rather than broken */
.hero-photo .placeholder{
  aspect-ratio:3/2;display:grid;place-items:center;padding:0 18px;
  background:var(--rule-soft);border:1px solid var(--rule);border-radius:2px;
  font-family:var(--mono);font-size:12px;line-height:1.6;
  color:var(--muted);text-align:center;text-wrap:balance;
}

/* ---------- sections ---------- */

section{padding:64px 0;border-bottom:1px solid var(--rule)}
section.first{border-bottom:0}
h2{
  font-family:var(--sans);font-weight:500;font-size:15px;letter-spacing:.02em;
  margin:0 0 36px;padding-left:18px;position:relative;color:var(--muted);
}
h2::before{content:"";position:absolute;left:0;top:.62em;width:9px;height:1px;background:var(--needle)}
h3{font-family:var(--sans);font-weight:500;font-size:19px;margin:0 0 10px;line-height:1.35}

/* ---------- research pillars ---------- */

.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:48px}
.pillar svg{margin-bottom:18px;display:block}
.pillar p{color:var(--muted);font-size:16px;max-width:38ch}
.pillar .topics-label{
  font-family:var(--mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);margin:16px 0 7px;
}
.pillar .topics{list-style:none;margin:0;padding:0;font-size:15px;line-height:1.55;color:var(--muted)}
.pillar .topics li{position:relative;padding-left:15px;margin-bottom:8px}
.pillar .topics li::before{content:"–";position:absolute;left:0}

/* ---------- publications ---------- */

.pubs{display:flex;flex-direction:column}
.pub{display:grid;grid-template-columns:132px 1fr;gap:28px;padding:20px 0;border-top:1px solid var(--rule-soft)}
.pub:first-child{border-top:0}
.venue{font-family:var(--mono);font-size:13px;color:var(--muted);padding-top:3px;line-height:1.5}
.pub .title{font-weight:500;display:block;margin-bottom:4px}
.authors{color:var(--muted);font-size:15px;line-height:1.55}
.links{font-family:var(--sans);font-size:13px;margin-top:6px;display:flex;gap:14px;flex-wrap:wrap}

/* the BibTeX disclosure sits in the link row and reads as one of the links */
.bibtex summary{
  list-style:none;cursor:pointer;
  border-bottom:1px solid var(--rule);transition:border-color .12s;
}
.bibtex summary::-webkit-details-marker{display:none}
.bibtex summary:hover{border-bottom-color:var(--ink)}
.bibtex[open]{flex-basis:100%}   /* opened, it drops to its own line */
.bibtex pre{
  font-family:var(--mono);font-size:12px;line-height:1.55;
  margin:10px 0 2px;padding:12px 14px;
  background:var(--rule-soft);border-radius:2px;
  overflow-x:auto;white-space:pre;
}

/* ---------- teaching ---------- */

.course{display:grid;grid-template-columns:120px 1fr;gap:20px;padding:12px 0;border-top:1px solid var(--rule-soft)}
.course:first-of-type{border-top:0}
.term{font-family:var(--mono);font-size:13px;color:var(--muted)}

/* ---------- people ---------- */

.people{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:32px 24px}
.person img{
  width:100%;aspect-ratio:1;object-fit:cover;display:block;
  border-radius:2px;filter:grayscale(1);background:var(--rule-soft);
}
.person .name{font-family:var(--sans);font-size:16px;font-weight:500;margin-top:12px}
.person .name a{border-bottom-color:transparent}
.person .name a:hover{border-bottom-color:var(--ink)}
.person .role{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:2px}
/* optional extra line, e.g. a co-advisor */
.person .note{font-size:12px;color:var(--muted);margin-top:3px;line-height:1.45}

/* students and alumni: same card, smaller */
.people-sub{margin:44px 0 18px;font-size:16px;color:var(--muted)}
.people.compact{grid-template-columns:repeat(auto-fill,minmax(95px,1fr));gap:24px 18px}
.people.compact .name{font-size:14px;margin-top:9px}
.people.compact .role{font-size:11px}

/* ---------- join ---------- */

.join{max-width:var(--measure)}
.join .projects, .join .projects-sub{max-width:none;width:min(100%,900px)}
.join .lead{
  font-family:var(--sans);font-size:22px;font-weight:400;line-height:1.4;
  margin:0 0 20px;padding-left:18px;border-left:2px solid var(--needle);
  color:var(--ink);
}
.join .lead ~ .lead{margin-top:52px}   /* air between the two blocks */
.join p{color:var(--muted);font-size:16px;line-height:1.7;margin:0 0 14px}
/* line-breaking rules allow a break after the hyphen in dial-apply@..., which
   splits the address across two lines. Keep it whole. */
.join a[href^="mailto:"]{white-space:nowrap}

/* project lists on the join page — same two-column shape as .pub, so the
   theses and the publications read as one family */
.projects-sub{margin:44px 0 14px;font-size:16px;color:var(--muted)}
.projects-note{font-size:15px;color:var(--muted);margin:0}
.projects{list-style:none;margin:0;padding:0}
.projects li{
  display:grid;grid-template-columns:132px 1fr;gap:28px;
  padding:16px 0;border-top:1px solid var(--rule-soft);
}
.projects li:first-of-type{border-top:0}
/* arriving from a name on the People page: show which row was meant */
.projects li:target{
  background:var(--rule-soft);
  box-shadow:-14px 0 0 var(--rule-soft), 14px 0 0 var(--rule-soft);
  border-radius:2px;
}
.projects .kind{
  font-family:var(--mono);font-size:13px;color:var(--muted);
  padding-top:2px;line-height:1.5;
}
.projects .ptitle{display:block;font-size:16px;line-height:1.45}
/* one credit line, with the student inked so the name still stands out */
.projects .credit{font-size:14px;color:var(--muted);line-height:1.6;margin-top:5px}
.projects .credit .by{color:var(--ink)}

/* ---------- footer ---------- */

footer{
  padding:40px 0 64px;font-family:var(--sans);font-size:13px;color:var(--muted);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
}

/* ---------- responsive ---------- */

@media (max-width:820px){
  .pillars{grid-template-columns:1fr;gap:40px}
  .hero{grid-template-columns:1fr;gap:40px;justify-items:start}
}
@media (max-width:820px){
  .people{grid-template-columns:repeat(auto-fill,minmax(106px,1fr));gap:28px 20px}
  .people.compact{grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:20px 16px}
}
@media (max-width:600px){
  .wrap{padding:0 20px}
  body{font-size:16px}
  .hero{padding:52px 0 44px}
  section{padding:48px 0}
  .pub{grid-template-columns:1fr;gap:6px}
  .projects li{grid-template-columns:1fr;gap:6px}
  .projects .kind{order:2;padding-top:2px}
  .venue{order:2;padding-top:2px}
  .course{grid-template-columns:1fr;gap:2px}
  nav{gap:16px}
  /* without this the 144px minimum forces one column and each photo fills
     the whole width */
  .people{grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:22px 16px}
  .people.compact{grid-template-columns:repeat(auto-fill,minmax(76px,1fr));gap:18px 14px}
  .person .name{font-size:14px;margin-top:8px}
  .people.compact .name{font-size:13px;margin-top:7px}
  .person .role,.person .note{font-size:11px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}