:root{box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
*,*::before,*::after{box-sizing:inherit}
html{scroll-behavior:smooth;scroll-padding-top:calc(80px + env(safe-area-inset-top,0px));-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.icon{width:1.1em;height:1.1em;flex:none;fill:currentColor}

/* Navigation */
.nav{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent}
.nav .wrap{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{font-weight:700;text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.nav-right{display:flex;align-items:center;gap:28px}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0;font-size:15px}
.nav ul a{text-decoration:none;color:var(--muted);transition:color .2s}
.nav ul a:hover{color:var(--ink)}
@media (max-width:720px){.nav ul li:not(.keep){display:none}.nav-right,.nav ul{gap:18px}}

/* Hero */
.hero{padding:72px 0 64px}
.hero .wrap{display:grid;grid-template-columns:1.35fr .8fr;gap:64px;align-items:center}
.hero h1{font-size:clamp(44px,7vw,80px);line-height:1.02;letter-spacing:-.035em;font-weight:800;margin:0 0 20px}
.hero p.lead{font-size:clamp(18px,2vw,21px);color:var(--muted);max-width:30ch;margin:0 0 36px;line-height:1.55}
.hero p.lead strong{color:var(--ink);font-weight:600}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;padding:13px 22px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;transition:transform .2s cubic-bezier(.16,1,.3,1),background-color .2s,border-color .2s}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:color-mix(in srgb,var(--accent) 88%,var(--ink))}
.btn-ghost{border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.portrait{position:relative;justify-self:end;width:100%;max-width:340px}
.portrait img{width:100%;height:auto;aspect-ratio:306/355;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
.portrait figcaption{margin-top:14px;font-size:14px;color:var(--muted);line-height:1.5}

/* Facts strip */
.facts{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.facts .wrap{display:grid;grid-template-columns:repeat(var(--cols,4),1fr)}
.fact{padding:28px 24px 28px 0}
.fact + .fact{padding-left:24px;border-left:1px solid var(--line)}
.fact b{display:block;font-size:34px;line-height:1.1;font-weight:700;letter-spacing:-.02em}
.fact span{font-size:14px;color:var(--muted)}

section{padding:96px 0}
h2{font-size:clamp(30px,3.6vw,42px);line-height:1.1;letter-spacing:-.025em;font-weight:700;margin:0 0 20px}
h3{margin:0}
.prose{max-width:62ch;color:var(--muted)}
.prose p{margin:0 0 1em}

/* Focus */
.focus .wrap{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
.topics{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:22px}
.topics li{padding-left:20px;border-left:3px solid var(--accent)}
.topics strong{display:block;font-weight:600}
.topics span{color:var(--muted);font-size:15px}

/* Publications */
.books{display:grid;gap:20px;margin:40px 0 56px}
.book{display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:start;background:var(--tint);border-radius:var(--radius);padding:44px}
.book-cover{width:120px;aspect-ratio:2/3;object-fit:cover;border-radius:4px 8px 8px 4px;box-shadow:var(--shadow)}
.book .details{margin-top:14px;font-size:14px;color:var(--muted)}
.book .actions{margin-top:20px}
.book .badge{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent)}
.book .badge .icon{width:22px;height:22px}
.book h3{font-size:clamp(24px,3vw,34px);line-height:1.2;letter-spacing:-.02em;font-weight:700;margin:10px 0 12px;max-width:26ch}
.book p{margin:0;color:var(--muted);max-width:56ch}
.book-mark{width:72px;height:96px;border-radius:6px 10px 10px 6px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;box-shadow:var(--shadow)}
.book-mark .icon{width:30px;height:30px}
.papers{display:grid;grid-template-columns:1fr 1fr;column-gap:56px;row-gap:36px}
.paper{padding-top:22px;border-top:1px solid var(--line)}
.paper .meta{font-size:14px;color:var(--muted);margin-bottom:6px}
.paper h3{font-size:18px;line-height:1.45;font-weight:600}
.paper a.doi{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:14px;font-weight:600;color:var(--accent);text-decoration:none}
.paper a.doi:hover{text-decoration:underline;text-underline-offset:3px}

/* Experience timeline */
.experience{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.timeline{list-style:none;margin:48px 0 0;padding:0}
.job{display:grid;grid-template-columns:180px 1fr;gap:40px;position:relative}
.job .when{font-weight:600;font-size:15px;color:var(--muted);padding-top:3px}
.job .body{position:relative;padding:0 0 48px 32px;border-left:1px solid var(--line)}
.job:last-child .body{padding-bottom:0}
.job .body::before{content:"";position:absolute;left:-6px;top:9px;width:11px;height:11px;border-radius:50%;background:var(--surface);border:2px solid var(--accent)}
.job:first-child .body::before{background:var(--accent)}
.job h3{font-size:21px;font-weight:700;letter-spacing:-.01em}
.job .org{color:var(--ink);margin:2px 0 10px;font-weight:500}
.job p{margin:0;color:var(--muted);max-width:60ch}

/* Copyrights */
.ip-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:16px;margin-top:40px}
.ip{border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:14px;background:var(--surface)}
.ip-feature{grid-row:span 2;background:var(--tint);border-color:transparent;justify-content:space-between}
.ip-feature h3{font-size:26px}
.ip h3{font-size:18px;line-height:1.35;font-weight:600}
.ip .reg{font-size:14px;color:var(--muted);display:flex;gap:16px;flex-wrap:wrap}
.ip .reg span:first-child{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:500}
.ip-wide{grid-column:1 / -1}

/* Training & education */
.learn .wrap{display:grid;grid-template-columns:1fr 1fr;gap:72px}
.learn ul{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:26px}
.learn li strong{display:block;font-weight:600;line-height:1.4}
.learn li span{display:block;color:var(--muted);font-size:15px}

/* Contact */
.contact{padding:112px 0 80px}
.contact h2{font-size:clamp(36px,5vw,60px);margin-bottom:16px}
.contact p{color:var(--muted);max-width:52ch;margin:0 0 32px}
.mail{display:inline-flex;align-items:center;gap:14px;font-size:clamp(20px,3vw,32px);font-weight:600;letter-spacing:-.015em;text-decoration:none;color:var(--accent);word-break:break-all}
.mail:hover{text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:2px}
.alt-mail{margin-top:14px;color:var(--muted);font-size:15px}
.alt-mail a{color:var(--ink)}
footer{border-top:1px solid var(--line);padding:28px 0;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* Mobile collapse */
@media (max-width:860px){
  .hero{padding:40px 0 48px}
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .portrait{justify-self:start;max-width:260px;order:-1}
  .portrait figcaption{display:none}
  .facts .wrap{grid-template-columns:1fr 1fr}
  .fact:nth-child(3){padding-left:0;border-left:0}
  .fact:nth-child(n+3){border-top:1px solid var(--line)}
  section{padding:72px 0}
  .focus .wrap,.learn .wrap{grid-template-columns:1fr;gap:40px}
  .book{grid-template-columns:1fr;padding:28px;gap:20px}
  .papers{grid-template-columns:1fr}
  .job{grid-template-columns:1fr;gap:6px}
  .job .when{padding-left:32px}
  .ip-grid{grid-template-columns:1fr}
  .ip-feature{grid-row:auto}
}

/* One entrance moment, on the hero only */
@media (prefers-reduced-motion: no-preference){
  .rise{opacity:0;transform:translateY(16px);animation:rise .8s cubic-bezier(.16,1,.3,1) forwards;animation-delay:calc(var(--i,0) * 90ms)}
  @keyframes rise{to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}

.notice{max-width:560px;margin:20vh auto;padding:0 24px;text-align:center;color:var(--muted)}