:root{--bg:#fff;--surface:#fff;--ink:#292929;--muted:#555;--accent:#292929;--line:#e8e8e8;--tint:#f6f6f6;--shadow:0 4px 18px #00000008}
body{font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.65}
a{color:var(--accent)}
a:focus-visible,button:focus-visible,.question-list summary:focus-visible{outline-color:#777}
.brand,.profile h1,.about h2,.section-heading h2{letter-spacing:normal}
.portrait{border-color:var(--line);background:var(--tint)}
.portrait span{font-family:Arial,Helvetica,sans-serif;font-weight:600;letter-spacing:-3px;color:var(--ink)}
.about h2,.contact-section h2,.research-story-card h3,.story-hero h1,.chapter h2,.takeaway p{font-family:Arial,Helvetica,sans-serif;letter-spacing:normal;font-weight:600}
.about h2{font-size:30px;line-height:1.4}
.intro,.body-copy p{font-size:16px;line-height:1.7;color:var(--muted);font-weight:400;margin:0 0 14px}
.intro strong,.body-copy strong{font-weight:700;color:var(--ink)}
.about a:not(.text-link),.contact-section a,.paper-reference a,.aside-paper a{text-decoration:underline;text-underline-offset:3px}
.text-link{border-bottom-color:var(--ink)}
.affiliation{color:var(--muted)}
.research-story-card h3{font-size:21px}
.chapter-nav{box-shadow:none}
.publication-figure{box-shadow:0 3px 12px #0000000c}
.publication-figure:hover{box-shadow:0 4px 17px #00000018}
body.dark{--bg:#171717;--surface:#202020;--ink:#eee;--muted:#c1c1c1;--accent:#eee;--line:#3a3a3a;--tint:#262626;--shadow:none}
body.dark .portrait{border-color:var(--line)}
body.dark .button{color:#171717}
.social-link{display:inline-flex;align-items:center;gap:9px;line-height:1.6}
.profile-links{gap:12px}
.profile-links .social-link{display:flex;width:fit-content;font-size:15px;color:var(--muted)}
.social-icon{width:18px;height:18px;flex:0 0 18px;stroke-width:1.7}
.contact-section .social-link{display:inline-flex;text-decoration:none}
.social-link:hover span{text-decoration:underline;text-underline-offset:3px}
.portrait-photo{overflow:hidden;padding:5px;background:var(--surface);box-shadow:none}
.portrait-photo img{display:block;width:100%;height:100%;min-height:0;object-fit:cover;object-position:48% 55%;border-radius:50%;transform:scale(1.8)}
.culture-photo{margin:25px 0 30px;max-width:620px}
.culture-photo a{display:block;line-height:0}
.culture-photo img{display:block;width:100%;height:auto;border-radius:6px;border:1px solid var(--line)}
.master-figure{margin:25px 0 28px}
.master-figure a{display:block;line-height:0}
.master-figure img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:5px}
.master-figure figcaption{font-size:13px;line-height:1.7;color:var(--muted);font-style:italic;margin-top:9px}
@media(max-width:650px){.about h2{font-size:26px}.intro,.body-copy p{font-size:16px;line-height:1.7}.research-story-card h3{font-size:20px}}