:root{
  --ink:#1b2430; --muted:#5b6675; --line:#e3e6ea; --bg:#fbfaf7; --card:#ffffff;
  --accent:#8a1c2b; --accent-2:#13324d; --soft:#f3efe8;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;font:17px/1.65 var(--sans);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--accent-2);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent)}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.2;color:var(--accent-2)}
h2{font-size:2rem;margin:0 0 .4rem}
h3{font-size:1.25rem;margin:2rem 0 .75rem}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.kicker{font:600 .78rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 .8rem}
.lede{color:var(--muted);max-width:680px;margin:0 0 1.5rem}

/* nav */
header.top{position:sticky;top:0;z-index:20;background:rgba(251,250,247,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{font-family:var(--serif);font-size:1.15rem;font-weight:600;color:var(--accent-2);text-decoration:none;white-space:nowrap}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
nav a{color:var(--ink);text-decoration:none;font-size:.93rem}
nav a:hover{color:var(--accent)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:6px 10px;font:inherit;font-size:.9rem;cursor:pointer;color:var(--ink)}
@media (max-width:860px){
  .menu-btn{display:block}
  nav ul{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 24px 16px}
  nav ul.open{display:flex}
  nav li a{display:block;padding:10px 0}
}

/* hero */
.hero{padding:88px 0 72px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.hero .wrap{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center}
.mono{width:132px;height:132px;border-radius:50%;background:var(--accent-2);color:#fff;display:grid;place-items:center;font:600 2.6rem var(--serif);letter-spacing:.02em;box-shadow:0 0 0 6px #fff,0 0 0 7px var(--line)}
.hero h1{font-size:clamp(2.1rem,4.4vw,3.2rem);margin:0 0 .4rem}
.hero .role{font-size:1.15rem;color:var(--ink);margin:0 0 .25rem}
.hero .post{color:var(--muted);margin:0 0 1.6rem}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:10px 18px;border-radius:6px;font-size:.93rem;font-weight:600;text-decoration:none;border:1px solid var(--accent-2)}
.btn.primary{background:var(--accent-2);color:#fff}
.btn.primary:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.ghost{color:var(--accent-2);background:transparent}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
@media (max-width:640px){.hero .wrap{grid-template-columns:1fr;gap:24px}.mono{width:96px;height:96px;font-size:1.9rem}.hero{padding:56px 0 48px}}

section.block{padding:72px 0;border-bottom:1px solid var(--line)}
section.block.alt{background:var(--soft)}

/* about */
.two{display:grid;grid-template-columns:1.4fr 1fr;gap:48px}
@media (max-width:860px){.two{grid-template-columns:1fr;gap:28px}}
.facts{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:24px 26px}
.facts dl{margin:0}
.facts dt{font:600 .74rem/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:16px}
.facts dt:first-child{margin-top:0}
.facts dd{margin:6px 0 0}
.links{list-style:none;padding:0;margin:1.2rem 0 0;display:flex;flex-wrap:wrap;gap:8px 18px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px;display:flex;flex-direction:column}
.card h4{font-family:var(--serif);font-size:1.12rem;margin:.2rem 0 .4rem;color:var(--accent-2)}
.card p{margin:0 0 1rem;color:var(--muted);font-size:.95rem}
.card .tag{font:600 .7rem/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.card a.more{margin-top:auto;font-weight:600;font-size:.93rem}

/* video */
.vgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.video{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.video .frame{position:relative;aspect-ratio:16/9;background:#0e1a26 center/cover no-repeat;cursor:pointer;border:0;width:100%;display:block;padding:0}
.video .frame::after{content:"";position:absolute;inset:0;background:rgba(10,20,30,.25);transition:background .2s}
.video .frame:hover::after{background:rgba(10,20,30,.08)}
.video .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:58px;height:58px;border-radius:50%;background:rgba(255,255,255,.94);z-index:1;display:grid;place-items:center}
.video .play::before{content:"";border-left:17px solid var(--accent);border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:5px}
.video iframe{width:100%;aspect-ratio:16/9;border:0;display:block}
.video .cap{padding:12px 16px 14px}
.video .cap strong{display:block;font-size:.97rem}
.video .cap span{color:var(--muted);font-size:.86rem}
.note{font-size:.88rem;color:var(--muted);margin-top:1.4rem;max-width:760px}

/* talks list */
.timeline{list-style:none;padding:0;margin:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 18px 22px}
.timeline li::before{content:"";position:absolute;left:-6px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--accent)}
.timeline b{font-weight:600}
.timeline span{display:block;color:var(--muted);font-size:.95rem}

/* publications */
.pubs{list-style:none;padding:0;margin:0}
.pubs li{padding:14px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:64px 1fr;gap:16px}
.pubs .yr{font:600 .95rem var(--serif);color:var(--accent)}
.pubs .t{font-weight:600}
.pubs .m{color:var(--muted);font-size:.93rem}
details.more-pubs summary{cursor:pointer;font-weight:600;color:var(--accent-2);padding:16px 0;list-style:none}
details.more-pubs summary::-webkit-details-marker{display:none}
details.more-pubs summary::before{content:"+ "}
details.more-pubs[open] summary::before{content:"− "}

/* contact */
.contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
footer.site{padding:36px 0;color:var(--muted);font-size:.86rem}
footer.site .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}

.vid{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.vid video{width:100%;aspect-ratio:16/9;background:#0e1a26;display:block}
.vid .cap{padding:12px 16px 14px}
.vid .cap strong{display:block;font-size:.97rem}
.vid .cap span{color:var(--muted);font-size:.86rem}
.subnav{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 8px}
.subnav a{font-size:.88rem;border:1px solid var(--line);border-radius:99px;padding:5px 12px;text-decoration:none;background:#fff}
.slides{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:0 32px}
.slides li{padding:12px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.slides a{font-weight:600}
.slides span{color:var(--muted);font-size:.85rem;white-space:nowrap}
.pagehead{padding:64px 0 40px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.pagehead h1{font-size:clamp(2rem,4vw,2.8rem);margin:0 0 .5rem}