:root{--bg:#f5f5f7;--card:#fff;--ink:#1d1d1f;--grey:#6e6e73;--line:#d2d2d7;--accent:#0071e3;--dark:#000;--r:22px;
 --font:-apple-system,BlinkMacSystemFont,"Inter","Helvetica Neue",Helvetica,Arial,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;letter-spacing:-.01em}
a{color:var(--accent);text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
/* nav */
nav{position:sticky;top:0;z-index:10;background:rgba(245,245,247,.8);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.06)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:48px;font-size:13px}
nav .brand{font-weight:600;color:var(--ink);font-size:15px}
nav ul{display:flex;gap:30px;list-style:none} nav ul a{color:var(--ink);opacity:.8} nav ul a:hover{opacity:1;text-decoration:none}
/* section headings, Apple 'bold + grey' */
section{padding:80px 0 0}
h2.lead{font-size:28px;font-weight:600;letter-spacing:-.02em;margin-bottom:26px}
h2.lead span{color:var(--grey)}
.eyebrow{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--grey)}
/* latest row */
.rail{display:flex;gap:20px;overflow-x:auto;padding-bottom:20px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{display:none}
.tile{flex:0 0 300px;height:420px;border-radius:var(--r);background:var(--card);padding:28px 26px;display:flex;flex-direction:column;scroll-snap-align:start;box-shadow:0 2px 10px rgba(0,0,0,.04);transition:transform .25s}
.tile:hover{transform:scale(1.015)}
.tile h3{font-size:24px;font-weight:600;line-height:1.15;margin:8px 0 6px}
.tile p{font-size:14px;color:var(--grey);line-height:1.4}
.tile img{margin-top:auto;width:100%;max-height:190px;object-fit:contain}
.tile.dark{background:var(--dark);color:#f5f5f7} .tile.dark p,.tile.dark .eyebrow{color:#a1a1a6}
/* interest cards */
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border-radius:var(--r);padding:30px 28px}
.card svg{width:34px;height:34px;margin-bottom:16px}
.card h3{font-size:21px;font-weight:600;line-height:1.2;margin-bottom:8px}
.card p{font-size:15px;color:var(--grey);line-height:1.45}
.card a{display:inline-block;margin-top:12px;font-size:15px}
/* project tiles */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ptile{border-radius:var(--r);background:var(--card);text-align:center;padding:46px 30px 0;min-height:520px;display:flex;flex-direction:column;overflow:hidden}
.ptile h3{font-size:34px;font-weight:600;letter-spacing:-.025em}
.ptile .sub{font-size:19px;margin-top:6px}
.ptile .links{margin-top:16px;display:flex;gap:12px;justify-content:center}
.btn{display:inline-block;border-radius:980px;padding:8px 18px;font-size:14px}
.btn.fill{background:var(--accent);color:#fff} .btn.line{border:1px solid var(--accent);color:var(--accent)}
.btn:hover{text-decoration:none;opacity:.85}
.ptile img{margin:auto auto 0;width:92%;max-height:300px;object-fit:contain;padding:24px 0}
.ptile.dark{background:var(--dark);color:#f5f5f7}
.ptile.dark .btn.line{border-color:#2997ff;color:#2997ff} .ptile.dark .btn.fill{background:#0071e3}
.ptile.span{grid-column:1/-1;min-height:420px}
/* blog list, Newsroom style */
.news{display:grid;grid-template-columns:1fr 1fr;column-gap:56px}
.item{display:flex;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}
.item img{width:112px;height:112px;border-radius:18px;background:#fff;object-fit:contain;padding:8px;flex:none}
.item:hover{text-decoration:none}.item:hover h4{text-decoration:underline}.item h4{font-size:19px;font-weight:600;line-height:1.25;margin:4px 0 8px;color:var(--ink)}
.item .date{font-size:14px;color:var(--grey)}
.center{text-align:center;margin-top:34px}
.btn.pill{background:#e8e8ed;color:var(--ink);padding:10px 22px;font-size:15px}
/* path so far, spec-columns */
.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:var(--card);border-radius:var(--r);padding:44px 30px;text-align:center}
.specs svg{width:36px;height:36px;margin-bottom:12px}
.specs h3{font-size:17px;font-weight:600;margin-bottom:14px}
.specs li{list-style:none;font-size:15px;line-height:1.4;margin-bottom:12px}
.specs li small{display:block;color:var(--grey);font-size:13px}
.ph{color:#bf4800}
/* footer */
footer{margin-top:100px;background:var(--bg);border-top:1px solid var(--line);font-size:12px;color:var(--grey);padding:22px 0 40px}
footer .cols{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:10px 0 20px;border-bottom:1px solid var(--line)}
footer h5{font-size:12px;color:var(--ink);font-weight:600;margin-bottom:8px}
footer li{list-style:none;margin-bottom:7px} footer a{color:var(--grey)}
footer .legal{margin-top:16px}
@media(max-width:760px){.hero h1{font-size:60px}.hero .top{flex-direction:column;align-items:flex-start}.hero .tag{text-align:left}.hero .tag .links{justify-content:flex-start}
 .three,.grid2,.news,.specs,footer .cols{grid-template-columns:1fr}.ptile.span{grid-column:auto}}

/* hero v2: name + bio paragraph */
.hero{background:#fff;padding:84px 0 64px}
.hero h1{font-size:56px;font-weight:700;letter-spacing:-.035em;line-height:1.05;margin-bottom:28px}
.hero .bio p{font-size:24px;line-height:1.38;font-weight:600;color:var(--grey);letter-spacing:-.015em;max-width:860px;margin-bottom:18px}
.hero .bio b{color:var(--ink);font-weight:600}
.hero .bio a{color:var(--ink);border-bottom:1px solid var(--line)} .hero .bio a:hover{text-decoration:none;border-color:var(--ink)}
.social{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.social a{font-size:14px;color:var(--ink);background:var(--bg);border-radius:980px;padding:8px 16px}
.social a:hover{background:#e8e8ed;text-decoration:none}
.social a.primary{background:var(--accent);color:#fff}
.todo{outline:1px dashed #bf4800;outline-offset:2px}
.tile{flex:0 0 340px}
.tile img{max-height:210px}
.ptile img{max-height:320px}
.note{font-size:11px;color:var(--grey);margin:-8px 0 18px} .ptile.dark .note{color:#86868b}
.item img{width:150px;height:104px;border-radius:14px;padding:6px}
footer .cols{grid-template-columns:1.4fr 1fr 1fr 1fr}
footer .now li{color:var(--ink)} footer .now small{display:block;color:var(--grey)}
.ptile.span{min-height:340px;justify-content:center;padding-bottom:46px}.ptile .desc{max-width:620px;margin:16px auto 0;color:#a1a1a6;font-size:17px;line-height:1.45}
/* ---- inner pages ---- */
.phero{background:#fff;padding:72px 0 48px;border-bottom:1px solid var(--line)}
.phero h1{font-size:48px;font-weight:700;letter-spacing:-.03em;line-height:1.08;margin:8px 0 14px;max-width:880px}
.phero .sub{font-size:21px;color:var(--grey);font-weight:500;line-height:1.4;max-width:820px}
.phero .meta{margin-top:18px;font-size:14px;color:var(--grey)} .phero .meta b{color:var(--ink);font-weight:600}
.phero .links{margin-top:22px;display:flex;gap:10px;flex-wrap:wrap}
.draftnote{background:#fff4e5;color:#8a4b00;border-radius:12px;padding:10px 16px;font-size:13px;margin:26px 0 0;max-width:880px}
.prose{max-width:720px;margin:0 auto;padding:56px 22px 0;font-size:18px;line-height:1.65}
.prose h2{font-size:28px;font-weight:600;letter-spacing:-.02em;margin:44px 0 12px;line-height:1.2}
.prose h3{font-size:20px;font-weight:600;margin:28px 0 8px}
.prose p{margin:0 0 18px} .prose ul,.prose ol{margin:0 0 18px 22px} .prose li{margin-bottom:6px}
.prose figure{margin:30px -60px;background:#fff;border-radius:var(--r);padding:26px 30px 18px}
.prose figure img{width:100%;display:block}
.prose figcaption{font-size:14px;color:var(--grey);line-height:1.45;margin-top:12px} .prose figcaption b{color:var(--ink)}
.prose pre{background:#1d1d1f;color:#f5f5f7;border-radius:14px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.5;margin:0 0 22px}
.prose code{font-family:"SF Mono",Menlo,Consolas,monospace;font-size:.88em} .prose p code{background:#e8e8ed;border-radius:5px;padding:1px 5px}
.prose .katex-display{margin:22px 0;overflow-x:auto}
.prose blockquote{border-left:3px solid var(--accent);padding:2px 0 2px 18px;color:var(--grey);margin:0 0 18px}
.refs{font-size:15px;color:var(--grey)} .refs li{margin-bottom:8px}
.ph{color:#bf4800}
.factgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:1040px;margin:34px auto 0;padding:0 22px}
.fact{background:#fff;border-radius:18px;padding:18px 20px} .fact .eyebrow{display:block;margin-bottom:6px} .fact div{font-size:15px;line-height:1.35}
/* education */
.sem{background:#fff;border-radius:var(--r);padding:30px 32px;margin-bottom:16px;display:grid;grid-template-columns:150px 1fr;gap:28px}
.sem .n{font-size:15px;color:var(--grey)} .sem .n b{display:block;font-size:34px;color:var(--ink);letter-spacing:-.02em}
.sem .n .tag{display:inline-block;margin-top:8px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;border-radius:980px;padding:3px 9px;background:var(--bg)}
.sem .n .tag.now{background:var(--accent);color:#fff}
.proj{background:var(--bg);border-radius:16px;padding:18px 20px;margin-bottom:16px}
.proj h4{font-size:19px;font-weight:600;margin:4px 0 6px} .proj p{font-size:15px;color:var(--grey);line-height:1.45}
.courses{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px 28px}
.courses li{font-size:15px;line-height:1.4} .courses li span{display:block;color:var(--grey);font-size:13.5px}
.ects{color:var(--grey);font-weight:400;font-size:13px;margin-left:6px}
/* list pages */
.plist{max-width:1040px;margin:0 auto;padding:48px 22px 0}
.pub{background:#fff;border-radius:18px;padding:22px 26px;margin-bottom:12px}
.pub h4{font-size:19px;font-weight:600;line-height:1.3;margin:4px 0 6px} .pub .who{font-size:15px;color:var(--grey)} .pub .who b{color:var(--ink)}
.pub .links{margin-top:12px;display:flex;gap:8px}
.btn.sm{padding:5px 13px;font-size:13px}
/* CV */
.cv{max-width:880px;margin:0 auto;padding:48px 22px 0}
.cvsec{background:#fff;border-radius:var(--r);padding:28px 32px;margin-bottom:16px}
.cvsec h2{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--grey);margin-bottom:14px}
.row{display:grid;grid-template-columns:1fr auto;gap:4px 20px;padding:12px 0;border-top:1px solid #f0f0f2} .row:first-of-type{border-top:none}
.row h4{font-size:17px;font-weight:600} .row .when{font-size:14px;color:var(--grey);text-align:right;white-space:nowrap}
.row .what{grid-column:1/-1;font-size:15px;color:var(--grey);line-height:1.45} .row .what b{color:var(--ink);font-weight:500}
.skills{display:flex;flex-wrap:wrap;gap:8px} .skills span{background:var(--bg);border-radius:980px;padding:6px 13px;font-size:14px}
@media(max-width:760px){.phero h1{font-size:34px}.sem{grid-template-columns:1fr}.courses{grid-template-columns:1fr}.factgrid{grid-template-columns:1fr 1fr}.prose figure{margin:24px 0}}

.shelf{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:12px}
.book{background:#fff;border-radius:18px;padding:18px;display:flex;flex-direction:column;color:var(--ink)} .book:hover{text-decoration:none;transform:scale(1.01)}
.cover{width:100%;aspect-ratio:2/3;border-radius:8px;object-fit:cover;background:#e8e8ed;box-shadow:0 4px 14px rgba(0,0,0,.12);margin-bottom:14px}
.tcover{display:flex;flex-direction:column;justify-content:space-between;padding:16px 14px;color:#fff;font-weight:600;font-size:17px;line-height:1.2}
.tcover small{font-weight:400;font-size:12px;opacity:.8}
.book h4{font-size:16px;font-weight:600;line-height:1.25} .book .by{font-size:13px;color:var(--grey);margin:3px 0 8px}
.book p{font-size:13.5px;color:var(--grey);line-height:1.4} .book .status{margin-top:auto;padding-top:10px}
.bhero{display:grid;grid-template-columns:180px 1fr;gap:40px;align-items:center}
.bhero .cover{margin:0;width:180px}
@media(max-width:760px){.shelf{grid-template-columns:1fr 1fr}.bhero{grid-template-columns:1fr}}