:root{
  --ink:#252a31;
  --charcoal:#1d232b;
  --charcoal-2:#303742;
  --burgundy:#6d3343;
  --burgundy-dark:#552635;
  --bronze:#a48766;
  --stone:#f6f3ef;
  --stone-2:#ede8e1;
  --paper:#ffffff;
  --slate:#59636f;
  --muted:#818994;
  --line:#e3ded7;
  --shadow:0 14px 38px rgba(29,35,43,.075);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Segoe UI","Helvetica Neue",Arial,sans-serif;
  font-size:13px;
  line-height:1.58;
  letter-spacing:.002em;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.page-noise{display:none}

.site-header{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px clamp(20px,4vw,58px);
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brand{
  display:flex;align-items:center;gap:9px;
  font-weight:720;font-size:13px;color:var(--charcoal);letter-spacing:.01em;
}
.brand span{
  display:grid;place-items:center;
  width:31px;height:31px;border-radius:7px;
  background:var(--burgundy);color:#fff;
  font-size:10px;letter-spacing:.08em;
}
.nav{display:flex;align-items:center;gap:17px;font-size:11px;font-weight:650}
.nav a{color:#4a5360}
.nav a:hover{color:var(--burgundy)}
.nav-cta{
  padding:8px 12px!important;border-radius:7px;
  background:var(--charcoal);color:#fff!important
}
.nav-toggle{display:none;border:0;background:transparent;font-size:20px;color:var(--charcoal)}

.section{
  max-width:1140px;margin:auto;
  padding:66px clamp(20px,4vw,58px);
}
.hero{
  min-height:calc(100vh - 58px);
  display:grid;grid-template-columns:1.06fr .94fr;
  align-items:center;gap:48px;padding-top:46px;
  background:linear-gradient(90deg,#fff 0%,#fff 58%,#fbf9f6 100%);
}
.eyebrow{
  display:inline-block;font-size:8.5px;letter-spacing:.2em;
  font-weight:800;color:var(--burgundy);margin-bottom:10px;
}
.hero h1,.section-heading h2{
  margin:0;color:var(--charcoal);
  font-family:Georgia,"Times New Roman",serif;
  line-height:1.06;letter-spacing:-.025em;font-weight:600;
}
.hero h1{font-size:clamp(43px,5.2vw,67px)}
.hero h1 span,.section-heading h2 span{
  color:var(--burgundy);background:none;
  -webkit-background-clip:initial;background-clip:initial;
}
.hero-lede{
  max-width:620px;font-size:14.5px;color:var(--slate);
  margin:18px 0 21px;line-height:1.65;
}
.hero-actions{display:flex;gap:9px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 14px;border-radius:7px;
  font-size:11.5px;font-weight:700;border:1px solid var(--line);
  transition:.18s;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 7px 18px rgba(29,35,43,.06)}
.btn.primary{background:var(--charcoal);color:#fff;border-color:var(--charcoal)}
.btn.secondary{background:#fff;color:var(--charcoal)}

.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:27px}
.stat-grid div{padding:11px;border:1px solid var(--line);border-radius:9px;background:#fff}
.stat-grid strong{display:block;font-size:15px;color:var(--charcoal)}
.stat-grid span{display:block;font-size:8.8px;color:var(--muted);margin-top:2px;line-height:1.35}

.hero-art{position:relative;min-height:460px;display:grid;place-items:center}
.portrait-shell{
  width:min(72vw,350px);aspect-ratio:1;border-radius:18px;
  overflow:hidden;padding:21px;background:var(--stone);
  border:1px solid var(--stone-2);box-shadow:var(--shadow)
}
.portrait-shell img{width:100%;height:100%;object-fit:contain;border-radius:12px}
.orbit{display:none}
.float-card{
  position:absolute;padding:9px 11px;border:1px solid var(--line);
  border-radius:8px;background:rgba(255,255,255,.98);
  box-shadow:0 8px 22px rgba(29,35,43,.06);
  font-size:9px;color:var(--muted)
}
.float-card b{font-size:10px;color:var(--charcoal)}
.f1{left:0;top:21%}.f2{right:0;top:47%}.f3{left:7%;bottom:9%}

.section-heading{max-width:720px;margin-bottom:25px}
.section-heading h2{font-size:clamp(28px,3.6vw,43px)}
.section-heading p{color:var(--slate);max-width:690px;font-size:12px}

.split-section{display:grid;grid-template-columns:.84fr 1.16fr;gap:38px}
.split-section .section-heading{grid-column:1}
.about-copy{grid-column:2;font-size:13px;color:var(--slate)}
.about-copy p{margin-top:0}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:16px}
.chips span,.skills-cloud span{
  padding:6px 9px;border-radius:999px;background:var(--stone);
  color:#4e5863;font-size:10px;font-weight:650;border:1px solid var(--stone-2)
}
.cv-embed{
  grid-column:1/-1;border:1px solid var(--line);border-radius:12px;
  overflow:hidden;box-shadow:var(--shadow);background:#fff
}
.embed-head{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 13px;border-bottom:1px solid var(--line);font-size:11.5px
}
.embed-head a{color:var(--burgundy);font-size:10.5px;font-weight:700}
.cv-embed iframe{width:100%;height:650px;border:0;background:var(--stone)}

.timeline{border-top:1px solid var(--line)}
.timeline-item{
  display:grid;grid-template-columns:135px 1fr;gap:23px;
  padding:20px 0;border-bottom:1px solid var(--line)
}
.timeline-item>span{font-size:10.5px;font-weight:800;color:var(--burgundy)}
.timeline-item h3{margin:0 0 3px;font-size:16px;color:var(--charcoal)}
.timeline-item p{margin:3px 0;color:var(--slate);font-size:11.5px}

.research-list{display:grid;gap:12px}
.research-card{
  display:grid;grid-template-columns:64px 1fr;gap:17px;
  padding:20px;border:1px solid var(--line);border-radius:12px;background:#fff
}
.paper-number{
  font-family:Georgia,"Times New Roman",serif;font-size:32px;
  color:#d9c8bd;letter-spacing:-.04em
}
.research-card h3{
  font-family:Georgia,"Times New Roman",serif;
  font-size:17.5px;font-weight:600;margin:6px 0;color:var(--charcoal)
}
.research-card p{color:var(--slate);font-size:11.5px}
.unavailable{
  display:inline-block;margin-top:5px;font-size:9px;color:#785461;
  background:#faf4f6;border:1px solid #ead9df;border-radius:999px;padding:5px 8px
}

.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.project-card{
  display:flex;flex-direction:column;min-height:165px;padding:19px;border-radius:12px;
  border:1px solid var(--line);background:#fff
}
.project-card h3{
  font-family:Georgia,"Times New Roman",serif;
  font-size:16.5px;font-weight:600;margin:8px 0 5px;color:var(--charcoal)
}
.project-card p{color:var(--slate);font-size:11.5px}
.project-media-stack{display:grid;gap:10px;margin-top:12px}
.project-media{overflow:hidden;border-radius:10px;border:1px solid var(--line);background:var(--stone)}
.project-media img,.project-media video,.project-media iframe{display:block;width:100%;height:180px;object-fit:cover;border:0;background:var(--stone)}
.project-media.video{display:flex;justify-content:center;align-items:center;background:#f8f5f2}
.project-media.video video{
  width:min(100%,220px);height:360px;object-fit:cover;display:block;margin:0 auto
}
.project-media.linkedin-embed{height:220px}
.project-media.linkedin-embed iframe{height:220px}
.project-media.pdf-embed iframe{height:220px}
.project-doc-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

.credentials-section{
  background:var(--stone);max-width:none;
  padding-left:max(clamp(20px,4vw,58px),calc((100vw - 1140px)/2 + 58px));
  padding-right:max(clamp(20px,4vw,58px),calc((100vw - 1140px)/2 + 58px))
}
.credentials-section>.section-heading,.credentials-section>.tabs,
.credentials-section>.tab-panel,.credentials-section>.evidence-note{
  max-width:1024px;margin-left:auto;margin-right:auto
}
.tabs{display:flex;gap:7px;margin-bottom:17px}
.tab{
  border:1px solid var(--line);background:#fff;padding:8px 12px;
  border-radius:7px;font-size:10.5px;font-weight:750;cursor:pointer;color:#4c5663
}
.tab.active{background:var(--burgundy);color:#fff;border-color:var(--burgundy)}
.tab-panel{display:none}.tab-panel.active{display:block}

.credential-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}
.credential-grid.compact{grid-template-columns:repeat(2,1fr)}
.credential-card{
  display:flex;flex-direction:column;padding:15px;
  border-radius:10px;border:1px solid var(--line);
  background:#fff;min-height:390px;transition:.18s
}
.clickable-document{cursor:pointer}
.clickable-document:hover{
  transform:translateY(-2px);
  border-color:#cbbdc0;
  box-shadow:0 10px 26px rgba(29,35,43,.06)
}
.credential-top{display:flex;justify-content:space-between;align-items:center}
.credential-icon{
  display:grid;place-items:center;width:27px;height:27px;border-radius:7px;
  background:#faf5f6;color:var(--burgundy);font-size:10px
}
.mini-label{
  font-size:8px;font-weight:800;letter-spacing:.13em;
  text-transform:uppercase;color:var(--burgundy)
}
.credential-card h3{
  font-family:Georgia,"Times New Roman",serif;
  font-size:14px;line-height:1.3;font-weight:600;
  margin:11px 0 4px;color:var(--charcoal)
}
.credential-card .org{font-size:9.8px;font-weight:750;color:#4c5764}
.credential-card p{font-size:10.5px;color:var(--slate)}
.certificate-preview{
  width:100%;height:155px;margin:10px 0 0;border:1px solid var(--line);
  border-radius:6px;background:var(--stone);pointer-events:none
}
.source-row{
  margin-top:auto;padding-top:10px;border-top:1px solid #efebe6
}
.document-action{
  display:inline-flex;align-items:center;gap:5px;
  color:var(--burgundy);font-size:9.3px;font-weight:750
}
.evidence-note{font-size:9px;color:var(--muted);margin-top:12px!important}

.skills-cloud{display:flex;flex-wrap:wrap;gap:7px}
.skills-cloud span{font-size:10.5px;padding:7px 10px;background:#fff;border:1px solid var(--line)}

.contact-section{padding-top:38px}
.contact-card{
  padding:40px;border-radius:14px;background:var(--charcoal);color:#fff
}
.contact-card h2{
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(27px,3.4vw,40px);font-weight:600;
  line-height:1.08;max-width:760px;margin:4px 0 13px;letter-spacing:-.025em
}
.contact-card p{color:#c6cbd1;font-size:11.5px}
.contact-card .btn.primary{background:#fff;color:var(--charcoal);border-color:#fff}
.contact-card .btn.secondary{color:#fff;background:transparent;border-color:#626b75}

footer{
  padding:19px clamp(20px,4vw,58px);border-top:1px solid var(--line);
  text-align:center;color:var(--muted);font-size:9px
}

/* Document viewer */
.document-viewer{
  position:fixed;inset:0;z-index:1000;
  background:rgba(19,22,27,.78);
  display:none;padding:24px;
  backdrop-filter:blur(8px)
}
.document-viewer.open{display:grid;place-items:center}
.viewer-dialog{
  width:min(1100px,96vw);height:min(850px,92vh);
  background:#fff;border-radius:12px;overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,.24);
  display:grid;grid-template-rows:auto 1fr
}
.viewer-toolbar{
  display:flex;align-items:center;justify-content:space-between;
  gap:15px;padding:10px 13px;border-bottom:1px solid var(--line)
}
.viewer-toolbar>div:first-child{display:grid;gap:2px}
.viewer-kicker{font-size:7.5px;letter-spacing:.15em;color:var(--burgundy);font-weight:800}
#viewer-title{font-size:11.5px;color:var(--charcoal)}
.viewer-actions{display:flex;align-items:center;gap:10px}
.viewer-actions a{font-size:9.5px;color:var(--burgundy);font-weight:700}
#viewer-close{
  width:28px;height:28px;border:0;background:var(--stone);
  border-radius:7px;font-size:18px;cursor:pointer;color:var(--charcoal)
}
.viewer-stage{position:relative;background:#ece9e5}
#viewer-frame{width:100%;height:100%;border:0;background:#fff}
.viewer-fallback{
  position:absolute;inset:0;display:none;place-items:center;
  text-align:center;padding:30px;background:var(--stone);color:var(--slate)
}
.viewer-fallback strong{color:var(--charcoal);font-size:13px}
.viewer-fallback p{max-width:580px;font-size:10.5px}
.viewer-fallback code{font-size:9.5px}

.reveal{opacity:0;transform:translateY(10px);transition:opacity .5s ease,transform .5s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:960px){
  .nav{
    display:none;position:absolute;top:57px;right:16px;left:16px;
    flex-direction:column;align-items:stretch;padding:14px;background:#fff;
    border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow)
  }
  .nav.open{display:flex}.nav-toggle{display:block}
  .hero{grid-template-columns:1fr}.hero-art{min-height:410px}
  .split-section{grid-template-columns:1fr}
  .split-section .section-heading,.about-copy{grid-column:1}
  .credential-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  body{font-size:12.5px}.section{padding:54px 18px}
  .hero h1{font-size:41px}.hero-art{min-height:370px}
  .float-card{font-size:8px}.timeline-item{grid-template-columns:1fr;gap:5px}
  .research-card{grid-template-columns:1fr}.paper-number{font-size:27px}
  .project-grid,.credential-grid,.credential-grid.compact{grid-template-columns:1fr}
  .cv-embed iframe{height:480px}.contact-card{padding:29px 20px}
  .document-viewer{padding:8px}.viewer-dialog{width:100%;height:96vh}
}