:root{
  --bg:#ffffff;
  --bg-soft:#f6f8fb;
  --navy:#1d3a5f;
  --blue:#2f6db5;
  --blue-soft:#e8f0f9;
  --ink:#23282e;
  --ink-soft:#5b636c;
  --line:#e4e8ee;
  --maxw:880px;
  --shadow:0 16px 44px rgba(29,58,95,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg);color:var(--ink);
  line-height:1.75;-webkit-font-smoothing:antialiased;
}
::selection{background:var(--blue-soft);color:var(--navy)}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

/* Top nav */
header.topbar{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:1.1rem 1.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
}
.wordmark{
  font-family:'Source Serif 4',serif;font-weight:600;font-size:1.15rem;
  letter-spacing:.06em;color:var(--navy);text-transform:uppercase;
}
.wordmark:hover{text-decoration:none}
.topnav{display:flex;gap:.3rem;flex-wrap:wrap}
.topnav a{
  font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;font-weight:500;
  color:var(--ink-soft);padding:.4rem .85rem;border-radius:6px;transition:color .18s,background .18s;
}
.topnav a:hover{color:var(--navy);background:var(--bg-soft);text-decoration:none}
.topnav a.active{color:var(--blue)}

/* Layout */
main{max-width:var(--maxw);margin:0 auto;padding:0 1.5rem}
.page{padding:4rem 0 4.5rem;min-height:60vh}
.eyebrow{
  font-size:.72rem;text-transform:uppercase;letter-spacing:.22em;
  color:var(--blue);font-weight:600;margin-bottom:1rem;
}
h2{
  font-family:'Source Serif 4',serif;font-weight:500;
  font-size:clamp(1.7rem,3.5vw,2.3rem);letter-spacing:-.01em;
  margin-bottom:1.8rem;line-height:1.2;color:var(--navy);
}

/* Photo */
img.photo{object-fit:cover}

/* HOME */
.home-wrap{text-align:center;padding-top:1rem}
.home-portrait{
  width:340px;max-width:80%;aspect-ratio:3/4;object-fit:cover;
  border-radius:4px;margin:0 auto 2rem;
  box-shadow:var(--shadow);
}
.home-wrap h1{
  font-family:'Source Serif 4',serif;font-weight:600;
  font-size:clamp(2rem,4.5vw,2.8rem);letter-spacing:.01em;
  color:var(--navy);margin-bottom:.3rem;
}
.home-wrap h1 .surname{font-style:italic;font-weight:400;color:var(--blue)}
.home-sub{
  font-size:.95rem;color:var(--ink-soft);margin-bottom:.4rem;
  text-transform:uppercase;letter-spacing:.14em;
}
.home-bio{text-align:left;max-width:680px;margin:2.5rem auto 0}
.home-bio p{margin-bottom:1.2rem;color:var(--ink)}
.home-bio p:last-child{margin-bottom:0}
.home-bio strong{color:var(--navy);font-weight:600}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 300px;gap:2.5rem;align-items:start}
.about-photo{width:100%;aspect-ratio:3/2;box-shadow:var(--shadow);object-fit:cover}
.prose p{margin-bottom:1.15rem;color:var(--ink)}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--navy);font-weight:600}
.interests{margin-top:1.8rem;font-size:.92rem;color:var(--ink-soft)}
.interests strong{color:var(--navy)}

/* Research */
.research-gallery{margin-bottom:2.4rem}
.rg-main{width:100%;aspect-ratio:3/2;box-shadow:var(--shadow);border-radius:10px;margin-bottom:.9rem;object-fit:cover}
.rg-row{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
.rg-row img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:10px;box-shadow:var(--shadow)}
.rg-caption{font-size:.8rem;color:var(--ink-soft);font-style:italic;text-align:center;margin-top:.9rem}
.diss{background:var(--bg-soft);border-left:3px solid var(--blue);border-radius:0 10px 10px 0;padding:1.8rem 2rem}
.diss .label{font-size:.72rem;text-transform:uppercase;letter-spacing:.16em;color:var(--blue);font-weight:600;margin-bottom:.7rem}
.diss h3{font-family:'Source Serif 4',serif;font-weight:600;font-size:1.3rem;line-height:1.3;margin-bottom:1rem;color:var(--navy)}
.diss p{color:var(--ink-soft);font-size:.95rem}
.pub-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;color:var(--blue);font-weight:600;margin:2rem 0 .6rem}
.pub{padding:1.1rem 0;border-bottom:1px solid var(--line)}
.pub:last-child{border-bottom:none}
.pub .t{font-family:'Source Serif 4',serif;font-size:1.08rem;line-height:1.35;margin-bottom:.25rem;color:var(--ink)}
.pub .s{font-size:.82rem;color:var(--ink-soft);font-style:italic}

/* Teaching */
.course{display:flex;align-items:baseline;gap:1rem;padding:.8rem 0;border-bottom:1px solid var(--line)}
.course:last-child{border-bottom:none}
.course .code{font-family:'Source Serif 4',serif;font-weight:600;color:var(--blue);font-size:.92rem;min-width:135px;flex-shrink:0}
.course .name{font-size:.95rem;flex:1;color:var(--ink)}
.course .mode{font-size:.74rem;color:var(--ink-soft);text-align:right;flex-shrink:0}

/* CV / Experience */
.tl{padding:1.3rem 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:120px 1fr;gap:1.5rem}
.tl:last-child{border-bottom:none}
.tl .when{font-size:.8rem;color:var(--ink-soft);padding-top:.2rem}
.tl .role{font-family:'Source Serif 4',serif;font-size:1.12rem;font-weight:600;color:var(--navy)}
.tl .org{color:var(--blue);font-size:.9rem;margin:.05rem 0 .5rem}
.tl p{font-size:.9rem;color:var(--ink-soft)}

/* Contact */
.contact-card{background:var(--navy);border-radius:12px;padding:2.5rem;text-align:center}
.contact-card h2{color:#fff}
.contact-card p{color:#cdd9e8;max-width:48ch;margin:0 auto 1.6rem}
.contact-links{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}
.clink{padding:.75rem 1.5rem;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:100px;font-size:.86rem;font-weight:500;color:#fff;transition:background .18s}
.clink:hover{background:var(--blue);border-color:var(--blue);text-decoration:none}

footer{padding:2.2rem 1.5rem;font-size:.78rem;color:var(--ink-soft);text-align:center;max-width:var(--maxw);margin:0 auto;border-top:1px solid var(--line)}

@media(max-width:760px){
  .about-grid{grid-template-columns:1fr}
  .about-photo{max-width:320px;margin:0 auto}
  .tl{grid-template-columns:1fr;gap:.3rem}
  .course{flex-wrap:wrap;gap:.3rem}
  .course .mode{text-align:left}
  .topbar-inner{justify-content:center}
}

/* Expertise */
.expertise-intro{font-size:1.05rem;color:var(--ink-soft);max-width:60ch;margin-bottom:2.4rem}
.expertise-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.exp-card{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;
  padding:1.8rem;transition:transform .18s,box-shadow .18s;
}
.exp-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.exp-num{
  font-family:'Source Serif 4',serif;font-size:1.6rem;font-weight:600;
  color:var(--blue);opacity:.45;line-height:1;margin-bottom:.8rem;
}
.exp-card h3{
  font-family:'Source Serif 4',serif;font-weight:600;font-size:1.18rem;
  line-height:1.3;color:var(--navy);margin-bottom:.6rem;
}
.exp-card p{font-size:.92rem;color:var(--ink-soft)}
@media(max-width:760px){
  .expertise-grid{grid-template-columns:1fr}
}