/* ---------- tokens ---------- */
:root{
  --bg:#fbf6ef;
  --bg-soft:#f3ead9;
  --card:#ffffff;
  --text:#2b2420;
  --muted:#6f6356;
  --line:#e6dac6;
  --accent:#c1552f;
  --accent-soft:#f3dcc9;
  --ring:#e8b98f;
  --max-w:860px;
  --radius:14px;
  --radius-sm:8px;
  --font-serif:"Fraunces",Georgia,serif;
  --font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --shadow:0 1px 2px rgba(60,40,20,.04),0 8px 24px -8px rgba(60,40,20,.10);
  --shadow-hover:0 2px 4px rgba(60,40,20,.06),0 16px 32px -12px rgba(60,40,20,.16);
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#1c1712;
    --bg-soft:#241d16;
    --card:#2a221a;
    --text:#f1e8da;
    --muted:#b2a38c;
    --line:#3a2f23;
    --accent:#e8884f;
    --accent-soft:#3f2c1f;
    --ring:#8a5a34;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -8px rgba(0,0,0,.5);
    --shadow-hover:0 2px 6px rgba(0,0,0,.35),0 16px 32px -12px rgba(0,0,0,.6);
  }
}
:root[data-theme="dark"]{
  --bg:#1c1712;
  --bg-soft:#241d16;
  --card:#2a221a;
  --text:#f1e8da;
  --muted:#b2a38c;
  --line:#3a2f23;
  --accent:#e8884f;
  --accent-soft:#3f2c1f;
  --ring:#8a5a34;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -8px rgba(0,0,0,.5);
  --shadow-hover:0 2px 6px rgba(0,0,0,.35),0 16px 32px -12px rgba(0,0,0,.6);
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(900px 500px at 85% -10%, var(--accent-soft) 0%, transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.65;
  transition:background .2s ease,color .2s ease;
}
.wrap{max-width:var(--max-w);margin:0 auto;padding:0 24px}

h1,h2,h3{
  font-family:var(--font-serif);
  font-weight:600;
  letter-spacing:-0.01em;
  line-height:1.2;
  color:var(--text);
}
h1{font-size:2.3rem;margin:0 0 6px}
h2{font-size:1.4rem;margin:52px 0 18px}
h3{font-size:1.1rem;margin:0 0 4px}
p{margin:0 0 14px}
a{color:var(--accent);text-decoration-color:transparent;text-underline-offset:3px;transition:text-decoration-color .15s ease}
a:hover{text-decoration-color:var(--accent)}
.muted{color:var(--muted)}
.small{font-size:.9rem}

/* ---------- header / nav ---------- */
header.site{
  position:sticky;
  top:0;
  z-index:10;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  padding:16px 0;
}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{font-family:var(--font-serif);font-weight:600;font-size:1.15rem;color:var(--text)}
.brand a{text-decoration:none;color:inherit}
nav.site-nav{display:flex;gap:2px;flex-wrap:wrap;align-items:center;background:var(--bg-soft);padding:4px;border-radius:999px}
nav.site-nav a{
  padding:7px 14px;
  border-radius:999px;
  text-decoration:none;
  font-size:.88rem;
  font-weight:500;
  color:var(--muted);
  transition:background .15s ease,color .15s ease;
}
nav.site-nav a:hover{color:var(--text)}
nav.site-nav a.active{color:#fff;background:var(--accent)}
#theme-toggle{
  border:none;
  background:var(--bg-soft);
  color:var(--text);
  border-radius:999px;
  width:34px;height:34px;
  cursor:pointer;
  font-size:.95rem;
  line-height:1;
  margin-left:6px;
}
#theme-toggle:hover{background:var(--accent-soft)}

/* ---------- hero / about ---------- */
.hero{
  display:grid;
  grid-template-columns:148px 1fr;
  gap:32px;
  align-items:start;
  padding:56px 0 8px;
}
.hero img.avatar{
  width:148px;height:148px;
  object-fit:cover;
  border-radius:50%;
  border:4px solid var(--card);
  box-shadow:0 0 0 3px var(--ring), var(--shadow);
}
.hero .role{margin:4px 0 16px;color:var(--accent);font-size:1rem;font-weight:600}
.hero-text .bio{color:var(--text);font-size:1.02rem}
.links{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 2px}
.links a{
  font-size:.86rem;
  font-weight:500;
  padding:7px 14px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:999px;
  text-decoration:none;
  color:var(--text);
  box-shadow:var(--shadow);
  transition:transform .15s ease,box-shadow .15s ease;
}
.links a:hover{transform:translateY(-1px);box-shadow:var(--shadow-hover);color:var(--accent)}

@media(max-width:560px){
  .hero{grid-template-columns:1fr;text-align:center}
  .hero img.avatar{margin:0 auto}
  .links{justify-content:center}
}

/* ---------- generic sections ---------- */
.section{margin:40px 0}
.section h1{margin-bottom:28px}
.section-header{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:52px 0 18px}
.section-header h2{margin:0}
.see-all{font-size:.86rem;color:var(--accent);text-decoration:none;white-space:nowrap;font-weight:600}
.see-all:hover{text-decoration:underline}

/* ---------- contact form ---------- */
.contact-intro{max-width:620px;color:var(--muted)}
.contact-form{max-width:620px;margin-top:28px}
.contact-form label{display:block;margin:18px 0 6px;font-size:.92rem;font-weight:600}
.contact-form input,.contact-form textarea{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--card);
  color:var(--text);
  font:inherit;
}
.contact-form textarea{min-height:160px;resize:vertical}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--ring);outline-offset:2px}
.contact-form button{
  margin-top:20px;
  padding:10px 18px;
  border:0;
  border-radius:var(--radius-sm);
  background:var(--accent);
  color:#fff;
  font:inherit;
  font-weight:600;
  cursor:pointer;
}
.contact-form button:hover{filter:brightness(1.06)}
.contact-note{max-width:620px;margin-top:14px;color:var(--muted);font-size:.88rem}

/* ---------- news ---------- */
ul.news{list-style:none;margin:0;padding:0}
ul.news li{
  display:grid;
  grid-template-columns:100px 1fr;
  gap:18px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
ul.news li:last-child{border-bottom:none}
ul.news .date{color:var(--accent);font-size:.85rem;font-weight:600;white-space:nowrap}
ul.news strong{font-family:var(--font-serif);font-weight:600;font-size:1.05rem}
@media(max-width:560px){
  ul.news li{grid-template-columns:1fr;gap:4px}
  ul.news .date{font-size:.8rem}
}

/* ---------- publications ---------- */
.pub-group{margin-bottom:8px}
.group-intro{color:var(--muted);font-size:.97rem;margin-top:-8px;margin-bottom:22px;max-width:640px}
ol.pub-list{list-style:none;margin:0;padding:0;counter-reset:pub}
ol.pub-list li{
  counter-increment:pub;
  position:relative;
  padding:16px 0 16px 38px;
  border-bottom:1px solid var(--line);
}
ol.pub-list li:last-child{border-bottom:none}
ol.pub-list li::before{
  content:counter(pub);
  position:absolute;
  left:0;
  top:17px;
  width:22px;height:22px;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-soft);
  color:var(--muted);
  border-radius:50%;
  font-size:.75rem;
  font-weight:600;
}
.pub-title{font-family:var(--font-serif);font-weight:600;font-size:1.04rem}
.pub-meta{color:var(--muted);font-size:.9rem;margin-top:3px}
.pub-actions{display:inline-flex;flex-wrap:wrap;gap:10px;margin-left:10px;font-size:.82rem;font-weight:600}
.pub-actions a{text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px}
.pub-actions a:hover{text-decoration-color:var(--accent)}
.pub-abstract{margin-top:8px;color:var(--muted);font-size:.9rem}
.pub-abstract summary{color:var(--accent);cursor:pointer;font-weight:600}
.pub-abstract p{margin:8px 0 0}
.badge{
  display:inline-block;
  font-size:.68rem;
  font-weight:700;
  letter-spacing:.03em;
  text-transform:uppercase;
  background:var(--accent-soft);
  border-radius:999px;
  padding:3px 10px;
  margin-left:8px;
  color:var(--accent);
}

/* ---------- entry lists (talks / experience / teaching / service / education) ---------- */
ul.entry-list{list-style:none;margin:0;padding:0}
.entry{padding:16px 0;border-bottom:1px solid var(--line)}
.entry:last-child{border-bottom:none}
.entry-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;align-items:baseline}
.entry-title{font-family:var(--font-serif);font-weight:600;font-size:1.02rem}
.entry-period,.entry-meta{color:var(--accent);font-size:.84rem;font-weight:600;white-space:nowrap}
.entry-note{color:var(--muted);font-size:.93rem;margin-top:6px}
ul.bullets{margin:10px 0 0 0;padding:0;color:var(--muted);font-size:.94rem;list-style:none}
ul.bullets li{margin-bottom:6px;padding-left:18px;position:relative}
ul.bullets li::before{content:"";position:absolute;left:0;top:.6em;width:6px;height:6px;border-radius:50%;background:var(--ring)}

/* ---------- skills ---------- */
.skills-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:8px}
.skills-group{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.skills-group h3{font-family:var(--font-serif);margin-bottom:10px;color:var(--accent)}
ul.skills-list{list-style:none;margin:0;padding:0;color:var(--text);font-size:.92rem}
ul.skills-list li{padding:4px 0}
@media(max-width:560px){
  .skills-grid{grid-template-columns:1fr}
}

/* ---------- projects ---------- */
.project-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
}
.project-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease;
}
.project-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.project-img{
  width:100%;
  aspect-ratio:16/9;
  background:var(--bg-soft);
  overflow:hidden;
}
.project-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.project-body{padding:20px}
.project-title{font-family:var(--font-serif);margin:0 0 8px;font-size:1.08rem}
.project-abstract{color:var(--muted);font-size:.93rem;margin:0 0 10px}
.project-link{font-size:.86rem;font-weight:600;text-decoration:none;color:var(--accent)}
.project-link:hover{text-decoration:underline}
@media(max-width:560px){
  .project-grid{grid-template-columns:1fr}
}

/* ---------- footer ---------- */
footer.site{
  border-top:1px solid var(--line);
  margin-top:72px;
  padding:32px 0 56px;
  color:var(--muted);
  font-size:.85rem;
}

/* ---------- misc ---------- */
.cv-button{
  display:inline-block;
  padding:9px 18px;
  background:var(--accent);
  border:1px solid var(--accent);
  border-radius:999px;
  text-decoration:none;
  font-size:.88rem;
  font-weight:600;
  color:#fff;
  box-shadow:var(--shadow);
  transition:transform .15s ease,box-shadow .15s ease,filter .15s ease;
}
.cv-button:hover{transform:translateY(-1px);box-shadow:var(--shadow-hover);filter:brightness(1.06);color:#fff}