:root{
  --bg:#ffffff; --text:#111111; --muted:#666; --accent:#0a66c2;
  --header-bg:#ffffff; --nav-link:#111; --nav-link-active:#0a66c2;
  --container:1000px;
  --pad:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad)}
header.site-header{position:sticky;top:0;z-index:1000;background:var(--header-bg);border-bottom:1px solid #eee}
.brand{display:flex;align-items:center;gap:10px;padding:10px 0}
.brand img{height:40px;width:auto;display:block}
.brand .title{font-weight:700;font-size:18px;color:var(--text)}
.navbar{display:flex;align-items:center;justify-content:space-between}
.nav-links{display:flex;gap:18px;flex-wrap:wrap}
.nav-links a{color:var(--nav-link);padding:10px 6px;border-radius:6px}
.nav-links a[aria-current="page"]{color:var(--nav-link-active);font-weight:600}
.nav-toggle{display:none;font-size:28px;line-height:1;padding:8px 10px;border:1px solid #ddd;border-radius:6px;background:#fff}
main{padding:28px 0}
h1{font-size:28px;line-height:1.2;margin:0 0 12px}
h2{font-size:22px;margin:24px 0 8px}
p{margin:10px 0}
footer.site-footer{border-top:1px solid #eee;margin-top:40px}
footer .inside{padding:18px 0;color:var(--muted);font-size:14px}
@media (max-width:780px){
  .nav-links{display:none;flex-direction:column;gap:0;margin-top:8px;border-top:1px solid #eee}
  .nav-links a{padding:12px 0}
  .nav-toggle{display:block}
}
/* Bio page layout */
.bio-page .bio-layout{
  display:flex;
  align-items:flex-start;
  gap:16px;
}

/* Portrait on desktop: fixed, sensible width */
.bio-page .bio-photo{
  flex:0 0 220px;   /* ~220px wide */
  max-width:220px;
  height:auto;
  border-radius:8px;
}

/* Text column */
.bio-page .bio-text{
  flex:1 1 0;
}

/* Publications & presentations list */
.pub-list{
  padding-left:20px;
}
.pub-list li{
  margin-bottom:6px;
}

/* Stack vertically on phones */
@media (max-width:780px){
  .bio-page .bio-layout{
    flex-direction:column;
  }
  .bio-page .bio-photo{
    max-width:260px;
    margin:0 auto 16px;
  }
}