:root{
  --ink:#1e2933;
  --muted:#68737d;
  --line:#d9dde1;
  --paper:#fbfaf7;
  --white:#ffffff;
  --accent:#58799c;
  --red:#cf4545;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:Arial, Helvetica, sans-serif;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}
img{max-width:100%;display:block}
.site-header{
  background:rgba(251,250,247,.97);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--max);
  margin:auto;
  padding:18px 28px 12px;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:30px;
}
.logo-link{display:block;max-width:430px}
.site-logo{width:100%;height:auto}
.nav{display:flex;gap:24px;flex-wrap:wrap;padding-bottom:9px}
.nav a{text-decoration:none;color:#3c4650;font-size:.95rem}
.nav a:hover{color:#000}
main{min-height:60vh}
.hero{
  max-width:var(--max);
  margin:32px auto 0;
  padding:0 28px 18px;
}
.eyebrow{
  color:var(--accent);
  font-size:.78rem;
  letter-spacing:.18em;
  font-weight:700;
  margin-bottom:10px;
}
.slide h1,.page h1{
  font-family:Georgia, "Times New Roman", serif;
  font-weight:500;
  line-height:1.12;
  margin:0 0 18px;
}
.slide h1{font-size:clamp(2rem,4vw,4rem)}
.slide p{font-size:1.06rem;margin:0 0 12px;max-width:39rem}
.note{font-size:.86rem!important;color:var(--muted)}

.hero-arrow,.dot{border:0;background:none;cursor:pointer;color:var(--muted)}
.hero-arrow{font-size:1.35rem;padding:6px 10px}
.dots{display:flex;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:#b8c0c6;padding:0}
.dot.active{background:var(--red)}
.section,.page-intro,.research-block,.featured-work,.teaching-feature,.about-grid{
  max-width:var(--max);
  margin:0 auto;
  padding-left:28px;
  padding-right:28px;
}
.section{padding-top:54px;padding-bottom:54px}
.intro{max-width:950px;text-align:center;padding-top:58px}
.intro h2,.section h2,.research-block h2,.featured-work h2,.teaching-feature h2{
  font-family:Georgia,"Times New Roman",serif;
  font-weight:500;
  margin:0 0 14px;
}
.intro h2{font-size:2rem}
.lead{font-size:1.15rem;color:#39444d}
.section-heading{border-bottom:1px solid var(--line);margin-bottom:8px}
.section-heading h2{font-size:1.8rem}
.pub-list{display:flex;flex-direction:column}
.pub{
  display:grid;grid-template-columns:80px 1fr;gap:16px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.pub-year{color:var(--muted);font-variant-numeric:tabular-nums}
.pub strong{font-weight:600}
.pub.full{padding:20px 0}
.teaching-preview{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  border-top:1px solid var(--line);
}
.teaching-preview img{width:100%;max-height:420px;object-fit:cover}
.teaching-copy h2{font-size:2rem}
.page{padding-top:44px}
.page-intro{padding-top:30px;padding-bottom:46px;max-width:900px}
.page-intro h1{font-size:1.75rem}
.page-intro p{font-size:1.12rem;color:#404b54}
.research-block,.teaching-feature{
  display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;
  padding-top:58px;padding-bottom:58px;border-top:1px solid var(--line);
}
.research-block.reverse .research-text,.teaching-feature.reverse>div{order:2}
.research-block.reverse picture,.teaching-feature.reverse picture{order:1}
.research-block img,.teaching-feature img{width:100%;max-height:530px;object-fit:contain;background:#fff}
.featured-work{padding-top:58px;padding-bottom:58px;border-top:1px solid var(--line)}
.featured-work>div{max-width:780px;margin-bottom:24px}
.featured-work img{width:100%;background:#fff;border:1px solid var(--line)}
.about-grid{
  display:grid;grid-template-columns:minmax(280px,390px) 1fr;gap:60px;align-items:start;
  padding-top:52px;padding-bottom:72px;
}
.portrait{width:100%;aspect-ratio:4/5;object-fit:cover}
.about-grid h1{font-family:Georgia,"Times New Roman",serif;font-weight:500;font-size:3.2rem;margin:0 0 20px}
.site-footer{
  border-top:1px solid var(--line);
  margin-top:24px;
  padding:34px 28px 22px;
  color:#4d5962;
  background:#f5f4f0;
}
.footer-grid{
  max-width:var(--max);margin:auto;display:grid;grid-template-columns:1.2fr 1fr .7fr;gap:30px;font-size:.9rem
}
.footer-grid strong{color:var(--ink);font-family:Georgia,"Times New Roman",serif;font-size:1.05rem}
.footer-motto{
  max-width:var(--max);margin:28px auto 0;padding-top:15px;border-top:1px solid #d0d4d7;
  letter-spacing:.19em;font-size:.72rem;color:#647c96
}
@media(max-width:800px){
  .header-inner{align-items:center;flex-direction:column}
  .logo-link{max-width:340px}
  .nav{justify-content:center;padding-bottom:4px;gap:16px}
  .slide.active,.teaching-preview,.research-block,.teaching-feature,.about-grid{grid-template-columns:1fr}
  .slides,.slide,.slide-media{min-height:auto}
  .slide-copy{padding:34px 28px}
  .slide-media{min-height:320px}
  .slide-media.contain{padding:12px}
  .research-block.reverse .research-text,.teaching-feature.reverse>div,
  .research-block.reverse picture,.teaching-feature.reverse picture{order:initial}
  .footer-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}


/* --- v2 refinements --- */

/* Larger header logo, still restrained */
.header-inner{
  align-items:center;
  padding-top:14px;
  padding-bottom:10px;
}
.logo-link{
  max-width:540px;
}
.site-logo{
  width:100%;
}

/* Smaller internal-page headings */
.page-intro.compact-intro{
  max-width:960px;
  padding-top:18px;
  padding-bottom:34px;
}
.page-intro.compact-intro h1{
  font-size:1.75rem;
  margin-bottom:12px;
}
.page-intro.compact-intro p{
  font-size:1.02rem;
}

/* Teaching: simple course list, Berkeley-style */
.teaching-page{
  padding-top:18px;
}
.teaching-title{
  padding-bottom:16px!important;
}
.course-list{
  max-width:960px;
  margin:0 auto;
  padding:0 28px 70px;
}
.course{
  padding:24px 0 26px;
  border-top:1px solid var(--line);
}
.course:first-child{
  border-top:0;
}
.course h2{
  font-family:Georgia, "Times New Roman", serif;
  font-size:1.34rem;
  font-weight:600;
  margin:0 0 7px;
  line-height:1.25;
}
.course-code{
  font-family:Arial, Helvetica, sans-serif;
  font-size:.82rem;
  font-weight:400;
  color:var(--muted);
  margin-left:7px;
}
.course p{
  margin:0;
  color:#3f4a53;
  font-size:.98rem;
}

/* About: simple, factual, no CTA blocks */
.about-copy h1{
  font-size:2.55rem;
}
.profile-icons{
  display:flex;
  gap:11px;
  margin-top:28px;
}
.profile-icon{
  width:39px;
  height:39px;
  border:1px solid #cfd5da;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#495762;
  text-decoration:none;
  transition:transform .15s ease, border-color .15s ease, color .15s ease;
}
.profile-icon:hover{
  transform:translateY(-1px);
  border-color:#8192a1;
  color:#17212a;
}
.profile-icon svg{
  width:20px;
  height:20px;
  fill:currentColor;
}
.profile-icon.researchgate span{
  font-size:.70rem;
  font-weight:700;
  letter-spacing:-.04em;
}

/* Keep section titles quieter */
.research-block h2,
.featured-work h2{
  font-size:1.75rem;
}

/* Mobile */
@media(max-width:800px){
  .logo-link{max-width:420px}
  .hero-images-only .slide-media{
    height:330px;
  }
  .course-list{
    padding-left:22px;
    padding-right:22px;
  }
}

/* v3: one full-width image, no copy column or padded picture wrapper. */
.header-inner{align-items:center;gap:24px}
.logo-link{width:610px;max-width:58%;flex-shrink:1}
.logo-link picture,.site-logo{display:block;width:100%;height:auto}
.nav{flex-shrink:0}
.slides{width:100%;position:relative}
.slide{display:none;width:100%;margin:0;padding:0;border:0}
.slide.active{display:block}
.hero-images-only .slide-media{display:block;width:100%;height:auto;min-height:0;padding:0;background:transparent}
.hero-images-only .slide-media picture{display:block;width:100%;margin:0;padding:0}
.hero-images-only .slide-media img{display:block;width:100%;height:auto;max-width:none;margin:0 auto;object-position:center}
.image-only-dots{display:flex;justify-content:center;gap:4px;padding-top:8px}
.dot{width:28px;height:28px;border:9px solid var(--paper)}
.home-intro{padding-top:32px;padding-bottom:48px}
.page-intro.compact-intro h1,.about-copy h1{font-size:1.75rem;line-height:1.25}
.page-intro{padding-bottom:28px}
.teaching-page .page-intro,.course-list,.teaching-projects{width:100%;max-width:960px;margin-left:auto;margin-right:auto;padding-left:28px;padding-right:28px}
.teaching-page .page-intro p{font-size:1rem;max-width:54rem}
.teaching-projects{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding-bottom:32px}
.teaching-projects figure{margin:0}
.teaching-projects img{width:100%;height:auto}
.teaching-projects figcaption{font-size:.9rem;color:var(--muted);margin-top:8px}
.course-list{padding-bottom:56px}
.course{padding:22px 0}
.course h2{font-size:1.3rem}
.course p{font-size:1rem}
.profile-icon{width:56px;height:56px}
.profile-icon svg{width:34px;height:34px}
.profile-icon.researchgate span{font-family:Georgia,serif;font-size:1.6rem;letter-spacing:-.07em}
.featured-work article+article{margin-top:44px;padding-top:36px;border-top:1px solid var(--line)}
.featured-work article>p{max-width:780px}
.featured-work .multiscale-figure{width:100%;max-width:551px;margin:24px auto 0}
.featured-work figure figcaption{margin-top:10px;font-size:.9rem;color:var(--muted)}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
@media(max-width:800px){
 .logo-link{width:100%;max-width:520px}
 .header-inner{gap:14px;padding-left:20px;padding-right:20px}
 .nav{flex-shrink:1}
 .hero{padding-left:20px;padding-right:20px;margin-top:18px}
 .teaching-projects{grid-template-columns:1fr}
 .page-intro.compact-intro h1,.about-copy h1{font-size:1.5rem}
 .intro h2{font-size:1.65rem}
}

/* v4: smaller centered heroes, preserving the complete images. */
.hero-images-only .slide{background:transparent}
.hero-images-only .slide-media picture{display:flex;justify-content:center;align-items:center}
.hero-images-only .slide-media img{width:auto;height:auto;max-width:100%;max-height:520px;object-fit:contain}
.hero-images-only .slide:nth-child(2) img,
.hero-images-only .slide:nth-child(3) img{max-height:460px}
.footer-profile-icons{justify-content:flex-start;margin-top:14px}
@media(max-width:600px){
 .hero-images-only .slide-media img{max-height:340px}
 .hero-images-only .slide:nth-child(2) img,
 .hero-images-only .slide:nth-child(3) img{max-height:320px}
}

.footer-profile-links{display:flex;flex-direction:column;align-items:flex-start;gap:2px;margin-top:4px;font-size:.85rem;line-height:1.5}