:root{--accent:#1d4e89;--accent-soft:#e8eef7;--text:#1f2328;--muted:#5b6470;--line:#e5e8ec;--bg:#fff;--card:#fff;--band:#f4f7fb;
 --band2:#eaf0f8;--footer:#0f1f33;--shadow:0 1px 3px rgba(16,40,80,.06);--chip:#c9d3e0;--btn:#e8eef7;--btn-text:#1d4e89;--btn-hover:#d6e2f2}
[data-theme="dark"]{--accent:#7fb0ef;--accent-soft:#1c2a3d;--text:#e6e9ee;--muted:#9aa4b2;--line:#2a313b;--bg:#12161c;--card:#171c23;
 --band:#171e27;--band2:#1a2330;--footer:#0a0e13;--shadow:none;--chip:#3a4553;--btn:#1f2d40;--btn-text:#a9c8f2;--btn-hover:#29405c;color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
[id]{scroll-margin-top:78px}
.awt{display:block}
h1,h2,h3,.ptitle,.eyebrow,.course .name,.who,.awt,.org,.ent .role,.rows .what,.biblist .t,.aff,.themes li{text-wrap:balance} p,li,.proj,.callout{text-wrap:pretty}
img{max-width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg);font-size:16px;line-height:1.65}
a{color:var(--accent);text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:980px;margin:0 auto;padding-left:max(28px,env(safe-area-inset-left,0px));padding-right:max(28px,env(safe-area-inset-right,0px))}
nav{position:sticky;top:0;background:var(--bg);border-bottom:1px solid var(--line);z-index:10}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-size:18px;color:var(--text)} .brand b{font-weight:700} .brand:hover{text-decoration:none}
.menu{display:flex;gap:20px;align-items:center;font-size:14.5px}
.menu a{color:var(--muted)} .menu a.active{color:var(--accent);font-weight:600}
.navr{display:flex;align-items:center;gap:6px;margin-left:20px}
.navr button{background:none;border:0;color:var(--muted);font-size:16px;cursor:pointer;padding:8px;line-height:1;font-family:inherit}
.navr button:hover{color:var(--accent)} .menu-btn{display:none}
.pagehead{padding:48px 0 8px} .pagehead h1{font-size:34px;font-weight:600;margin:0 0 6px;letter-spacing:-.2px}
.lead{color:var(--muted);font-size:16.5px;margin:0}
.eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:600;margin:0 0 4px}
section{padding:34px 0 6px}
h2{font-size:24px;font-weight:600;margin:0 0 18px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 12px}
h2 a{font-size:14px;font-weight:500} h2 .yrs{font-size:15px;color:var(--muted);font-weight:500}
h3{font-size:18px;font-weight:600;margin:0 0 8px}
.ext::after{content:" \2197";font-size:.85em}
/* home */
.hero{display:grid;grid-template-columns:1fr 250px;gap:44px;padding:52px 0 18px}
.hero h1{font-size:40px;font-weight:300;margin:0 0 4px;letter-spacing:-.3px} .hero h1 b{font-weight:700}
.role{color:var(--muted);font-size:15.5px;margin:0 0 22px} .role a{color:var(--muted);border-bottom:1px dotted #9aa3ad}
.bio p{margin:0 0 14px}
.themes{list-style:none;padding:0;margin:4px 0 16px}
.themes li{padding:7px 0 7px 14px;border-left:3px solid var(--accent);margin:0 0 8px;background:var(--band);border-radius:0 6px 6px 0}
.themes b{color:var(--accent);font-weight:600}
.photo img{width:250px;height:250px;object-fit:cover;border-radius:14px;box-shadow:0 6px 22px rgba(16,40,80,.14)}
.side{display:flex;flex-direction:column;align-items:center;gap:14px;padding-top:118px}
.icons{display:flex;gap:14px;font-size:20px} .icons a{color:var(--muted)} .icons a:hover{color:var(--accent);text-decoration:none}
.btn{display:inline-flex;gap:8px;align-items:center;background:var(--accent);color:#fff;padding:9px 18px;border-radius:999px;font-weight:600;font-size:14px;box-shadow:0 2px 8px rgba(29,78,137,.25)}
[data-theme="dark"] .btn{color:#0b1220}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.place{font-size:13.5px;color:var(--muted);text-align:center;line-height:1.5}
.affil{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;padding:26px 0 30px;border-bottom:1px solid var(--line)}
.aff{text-align:center;font-size:12.5px;color:var(--muted);line-height:1.45}
.aff img{height:46px;max-width:120px;object-fit:contain;display:block;margin:0 auto 10px}
.aff b{color:var(--text);font-weight:600;font-size:13px;min-height:2.9em;display:flex;align-items:flex-end;justify-content:center;line-height:1.45}
[data-theme="dark"] .aff img,[data-theme="dark"] .logo img{background:#fff;border-radius:6px;padding:3px}
/* news */
.news{list-style:none;margin:0;padding:0}
.news li{display:grid;grid-template-columns:104px 36px 1fr;align-items:start;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
.date{display:inline-block;background:var(--accent-soft);color:var(--accent);font-weight:600;font-size:13px;padding:3px 10px;border-radius:999px;text-align:center;white-space:nowrap}
.ic{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;font-size:14px;color:#fff;margin-top:-2px}
.ic.talk{background:#2f7d6d}.ic.paper{background:#1d4e89}.ic.award{background:#b7791f}.ic.teach{background:#7a4fb5}.ic.service{background:#5b6b7f}.ic.mile{background:#2b6cb0}
.news p{margin:0}
.year{font-size:20px;font-weight:600;margin:30px 0 4px;color:var(--text);border-bottom:2px solid var(--accent);display:inline-block;padding-bottom:2px}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0 4px}
.chip{border:1px solid var(--chip);background:var(--card);color:var(--muted);border-radius:999px;padding:5px 14px;font-size:13.5px;cursor:pointer;font-family:inherit}
.chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
[data-theme="dark"] .chip.on{color:#0b1220}
/* type colors (badges on images and tags in lists) */
.k-conf{--k:#1d4e89}.k-journal{--k:#2e7d4f}.k-workshop{--k:#b45309}.k-ur{--k:#6b7280}.k-prep{--k:#6d5bb5}.k-challenge{--k:#0f766e}.k-award{--k:#a16207}
/* publication cards */
.pub{display:grid;grid-template-columns:210px 1fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}
.thumb{position:relative;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;height:138px;padding:6px}
.thumb img{width:100%;height:100%;object-fit:contain;display:block}
.badge{position:absolute;top:8px;left:8px;background:var(--k,#1d4e89);color:#fff;font-size:11px;font-weight:700;padding:2px 8px;border-radius:5px;letter-spacing:.03em;z-index:2}
.ptitle{font-weight:600;font-size:16.5px;line-height:1.4;margin:0 0 4px;color:var(--text)}
.authors{font-size:14px;color:var(--muted);margin:0 0 2px}
.me{color:var(--text);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:3px}
.venue{font-size:14px;font-style:italic;color:var(--muted);margin:0 0 8px}
.tldr{font-size:14.5px;margin:0 0 10px}
.btns{display:inline-flex;gap:6px;flex-wrap:wrap;vertical-align:middle}
.btns a,.btns span{font-size:12px;font-weight:600;background:var(--btn);color:var(--btn-text);padding:3px 10px;border-radius:6px;line-height:1.6}
.btns a:hover{background:var(--btn-hover);text-decoration:none}
.btns span{background:transparent;color:var(--muted);border:1px dashed var(--chip)}
/* tabs */
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin:26px 0 8px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.tab{background:none;border:0;border-bottom:2px solid transparent;padding:10px 16px;white-space:nowrap;font:inherit;font-size:15px;color:var(--muted);cursor:pointer;margin-bottom:-1px}
.tab.on{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}
.panel{display:none} .panel.on{display:block}
.biblist{list-style:none;padding:0;margin:0}
.biblist li{padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;display:grid;grid-template-columns:42px 1fr;gap:8px}
.biblist .n{color:var(--muted);font-size:13px;padding-top:2px}
.biblist .t{font-weight:600;color:var(--text)} .biblist .au{color:var(--muted)}
.biblist .meta{margin-top:6px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.tag{display:inline-block;font-size:11.5px;font-weight:700;color:#fff;background:var(--k,#1d4e89);padding:1px 8px;border-radius:5px;letter-spacing:.02em}
.tag.soft{background:transparent;color:var(--k);border:1px solid var(--k)}
.note{font-size:13.5px;color:var(--muted);margin:10px 0 0}
/* research */
.themegrid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:24px}
.tcard{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--card);box-shadow:var(--shadow);display:grid;grid-template-columns:170px 1fr}
.tcard .img{background:#fff;border-right:1px solid var(--line);padding:10px;display:flex;align-items:center;justify-content:center}
.tcard .img img{width:100%;height:150px;object-fit:contain;display:block}
.tcard .body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px}
.tcard h3{font-size:16px;margin:0;line-height:1.35} .tcard p{margin:0;font-size:14px;color:var(--muted)}
.jump{font-size:13.5px;font-weight:600;margin-top:auto}
.theme{padding-top:44px} .theme .num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em}
.theme h2{margin-bottom:6px} .theme .lead{margin-bottom:6px}
/* teaching */
.cgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:10px 0 6px}
.course{border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:var(--card);box-shadow:var(--shadow)}
.course .code{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.03em}
.course .name{font-size:14.5px;font-weight:600;line-height:1.35;margin-top:2px}
.grp{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin:18px 0 0}
.rows{list-style:none;margin:8px 0 0;padding:0}
.rows li{display:grid;grid-template-columns:160px 1fr;gap:18px;padding:12px 0;border-bottom:1px solid var(--line)}
.rows .when{color:var(--muted);font-size:14px} .rows .what b{font-weight:600} .rows .what p{margin:3px 0 0;font-size:14.5px;color:var(--muted)}
.rows .what .btns{margin-top:6px}
.lvl{display:inline-block;font-size:11.5px;font-weight:600;color:var(--accent);background:var(--accent-soft);padding:1px 8px;border-radius:5px;margin-left:6px;vertical-align:1px}
.callout{background:var(--band);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;padding:14px 18px;margin:18px 0 4px;font-size:15px}
.mentee{display:grid;grid-template-columns:1fr auto;gap:4px 18px;padding:14px 0;border-bottom:1px solid var(--line)}
.mentee .who{font-weight:600} .mentee .who span{color:var(--muted);font-weight:400}
.mentee .yrs{color:var(--muted);font-size:14px;text-align:right} .mentee .proj{grid-column:1/3;font-size:14.5px}
.outcome{display:inline-block;font-size:12px;font-weight:600;background:#fdf3e1;color:#8a5a12;padding:1px 8px;border-radius:5px;margin-left:6px}
[data-theme="dark"] .outcome{background:#3a2e17;color:#f0c674}
/* experience */
.tl{position:relative;margin:14px 0 0}
.ent{display:grid;grid-template-columns:170px 56px 1fr;gap:16px;padding:16px 0;position:relative}
.ent .when{color:var(--muted);font-size:14px;text-align:right;padding-top:4px}
.logo{width:56px;height:56px;border:1px solid var(--line);border-radius:12px;background:#fff;display:grid;place-items:center;position:relative;z-index:2}
.logo img{max-width:44px;max-height:40px;object-fit:contain}
.tl::before{content:"";position:absolute;left:213px;top:20px;bottom:20px;width:2px;background:var(--line)}
.ent .role{margin:0;font-size:17px;font-weight:600;color:var(--text)} .ent .org{margin:0 0 6px;color:var(--muted);font-size:14.5px}
.ent ul{margin:4px 0 6px;padding-left:18px;font-size:14.5px} .ent li{margin:2px 0}
/* awards */
.aw{display:grid;grid-template-columns:90px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--line)}
.aw .y{font-weight:700;color:var(--accent)} .aw b{font-weight:600} .aw p{margin:2px 0 0;font-size:14.5px;color:var(--muted)}
.svgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:8px}
.sv{border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--card);box-shadow:var(--shadow)}
.sv h3{font-size:16px;display:flex;gap:10px;align-items:center} .sv h3 i{color:var(--accent)}
.sv p{margin:4px 0;font-size:14.5px} .sv .k{color:var(--muted);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;margin-top:10px}
/* contact band + footer */
.band{background:linear-gradient(180deg,var(--band),var(--band2));margin-top:56px;border-top:1px solid var(--line)}
.band .wrap{padding-block:40px 36px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
.band h3{margin:0 0 6px;font-size:22px} .band p{margin:0;color:var(--muted)}
.where{margin-top:12px;font-size:14px;color:var(--muted)} .where i{color:var(--accent);margin-right:6px;width:14px}
.cbtns{display:grid;grid-template-columns:repeat(3,auto);gap:10px}
.cbtns a{display:flex;align-items:center;gap:9px;background:var(--card);border:1px solid var(--chip);border-radius:10px;padding:10px 14px;font-size:14px;font-weight:500;color:var(--text);min-width:150px;box-shadow:var(--shadow)}
.cbtns a i{font-size:18px;color:var(--accent);width:20px;text-align:center}
.cbtns a:hover{border-color:var(--accent);text-decoration:none}
footer{background:var(--footer);color:#c9d3e0;font-size:13px} footer .wrap{display:flex;flex-wrap:wrap;gap:4px 16px;justify-content:space-between;padding-block:16px}
@media (max-width:960px){nav .wrap{flex-wrap:wrap;height:auto;min-height:58px}.menu-btn{display:block}.navr{margin-left:auto}
 .menu{display:none;order:3;width:100%;flex-direction:column;align-items:stretch;gap:0;padding:2px 0 10px;font-size:16px}
 nav.open .menu{display:flex}.menu a{padding:11px 2px;border-top:1px solid var(--line)}}
@media (max-width:820px){.hero{grid-template-columns:1fr;gap:28px;padding-top:36px}.side{padding-top:0;order:-1}.photo img{width:190px;height:190px}.affil{grid-template-columns:repeat(2,1fr);row-gap:22px}
 .pub{grid-template-columns:1fr;gap:12px}.themegrid,.svgrid{grid-template-columns:1fr}.cgrid{grid-template-columns:1fr 1fr}
 .band .wrap{grid-template-columns:1fr}.cbtns{grid-template-columns:1fr 1fr}.cbtns a{min-width:0}
 .ent{grid-template-columns:48px 1fr;gap:6px 14px}.ent .when{grid-column:1/-1;text-align:left;padding-top:0}.ent .logo{width:48px;height:48px}
 .ent .logo img{max-width:38px;max-height:34px}.tl::before{display:none}.rows li{grid-template-columns:1fr;gap:4px}.tcard{grid-template-columns:1fr}
 .tcard .img{border-right:0;border-bottom:1px solid var(--line)}}
@media (max-width:600px){.wrap{padding-left:max(18px,env(safe-area-inset-left,0px));padding-right:max(18px,env(safe-area-inset-right,0px))}
 .hero h1{font-size:34px}.pagehead{padding-top:32px}.pagehead h1{font-size:30px}h2{font-size:21px}
 .news li{grid-template-columns:30px 1fr;gap:8px 10px}.news .ic{grid-row:1;grid-column:1;margin-top:0}.news .date{grid-row:1;grid-column:2;justify-self:start;align-self:center}
 .news p{grid-column:1/-1}.biblist li{grid-template-columns:34px 1fr}.aw{grid-template-columns:76px 1fr;gap:12px}
 .mentee{grid-template-columns:1fr}.mentee .yrs{text-align:left}.mentee .proj{grid-column:1}.band h3{font-size:20px}}
@media (max-width:480px){.cgrid{grid-template-columns:1fr;gap:8px}.course{padding:10px 14px}}
@media (max-width:360px){.cbtns{grid-template-columns:1fr}}