:root{
  --bg:#ffffff;
  --bg-soft:#f5f7fb;
  --card:#ffffff;
  --text:#1c2430;
  --muted:#657084;
  --line:#dde3eb;
  --primary:#0f5fa8;
  --primary-dark:#0a467d;
  --accent:#15a3a3;
  --header:rgba(255,255,255,.92);
  --shadow:0 18px 50px rgba(28,36,48,.10);
  --max:1180px;
}
[data-theme="dark"]{
  --bg:#0e141b;
  --bg-soft:#151d27;
  --card:#111923;
  --text:#edf3f8;
  --muted:#a8b3c2;
  --line:#2a3543;
  --primary:#69b7f0;
  --primary-dark:#9dd4fb;
  --accent:#66d1cb;
  --header:rgba(14,20,27,.92);
  --shadow:0 18px 50px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  transition:.25s;
}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
h1,h2,h3{line-height:1.2;color:var(--text)}
h1{font-family:Merriweather,serif;font-size:clamp(2.8rem,6vw,5rem);margin:.3rem 0 1rem}
h2{font-size:clamp(2rem,4vw,3rem);margin:.2rem 0 2rem}
h3{font-size:1.2rem;margin:.2rem 0 .8rem}
p{margin:.2rem 0 1rem}
.container{width:min(calc(100% - 2rem),var(--max));margin:auto}
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--header);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line)
}
.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:800;color:var(--text);font-size:1.08rem}
.nav-links{display:flex;align-items:center;gap:1.1rem}
.nav-links a{color:var(--text);font-size:.92rem;font-weight:600}
.nav-links a:hover{color:var(--primary)}
.nav-cv{padding:.45rem .85rem;border:1px solid var(--line);border-radius:8px}
.menu-toggle,.theme-toggle{border:0;background:transparent;color:var(--text);cursor:pointer}
.menu-toggle{display:none;font-size:1.5rem}
.theme-toggle{width:38px;height:38px;border:1px solid var(--line);border-radius:50%}
.hero{padding:7rem 0 5rem;background:linear-gradient(135deg,var(--bg) 0%,var(--bg-soft) 100%)}
.hero-grid{display:grid;grid-template-columns:1.45fr .75fr;gap:5rem;align-items:center}
.eyebrow,.section-kicker,.project-label{
  text-transform:uppercase;letter-spacing:.16em;font-size:.78rem;font-weight:800;color:var(--accent)
}
.hero-role{font-size:1.35rem;font-weight:600;color:var(--muted)}
.hero-summary{font-size:1.1rem;max-width:760px}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap;margin:1.8rem 0}
.btn{display:inline-block;padding:.85rem 1.1rem;border-radius:10px;font-weight:700}
.btn.primary{background:var(--primary);color:#fff}
.btn.secondary{border:1px solid var(--line);color:var(--text)}
.social-row{display:flex;gap:1rem;flex-wrap:wrap;font-weight:600;font-size:.92rem}
.hero-photo-wrap{position:relative}
.hero-photo{
  width:min(360px,85vw);aspect-ratio:1;object-fit:cover;border-radius:28px;
  margin:auto;border:8px solid var(--card);box-shadow:var(--shadow)
}
.photo-card{
  position:absolute;left:-30px;bottom:-35px;background:var(--card);box-shadow:var(--shadow);
  border:1px solid var(--line);border-radius:14px;padding:1rem 1.2rem;display:grid;gap:.15rem
}
.photo-card span{font-size:.88rem;color:var(--muted)}
.stats-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stats-grid div{padding:1.4rem;border-right:1px solid var(--line)}
.stats-grid div:last-child{border-right:0}
.stats-grid strong,.stats-grid span{display:block}
.stats-grid span{font-size:.88rem;color:var(--muted)}
.section{padding:6rem 0}
.section.alt{background:var(--bg-soft)}
.two-col{display:grid;grid-template-columns:.8fr 1.2fr;gap:5rem}
.prose{font-size:1.05rem}
.research-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem}
.research-card{
  border:1px solid var(--line);border-radius:16px;padding:1.7rem;background:var(--card)
}
.research-card .number{font-size:.8rem;font-weight:800;color:var(--accent)}
.research-card p{color:var(--muted)}
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.project-card{min-height:310px;border-radius:20px;padding:1.7rem;border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow)}
.project-card.featured{background:linear-gradient(145deg,var(--primary),var(--primary-dark));color:#fff}
.project-card.featured h3,.project-card.featured p{color:#fff}
.project-card p{color:var(--muted)}
.tags{display:flex;gap:.45rem;flex-wrap:wrap;margin-top:1rem}
.tags span{padding:.3rem .55rem;border-radius:999px;border:1px solid var(--line);font-size:.75rem;font-weight:700}
.featured .tags span{border-color:rgba(255,255,255,.35)}
.section-head-row{display:flex;justify-content:space-between;align-items:end;gap:2rem}
.inline-link{font-weight:700}
.publication-list{border-top:1px solid var(--line)}
.publication{display:grid;grid-template-columns:90px 1fr;gap:1.5rem;padding:1.6rem 0;border-bottom:1px solid var(--line)}
.pub-year{font-weight:800;color:var(--accent)}
.publication p{color:var(--muted)}
.pub-links{display:flex;gap:.5rem;flex-wrap:wrap}
.pub-links a{padding:.28rem .58rem;border:1px solid var(--line);border-radius:7px;font-size:.8rem;font-weight:700}
.timeline{position:relative}
.timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--line)}
.timeline article{display:grid;grid-template-columns:24px 1fr;gap:1rem;padding-bottom:2rem;position:relative}
.timeline-dot{width:14px;height:14px;border-radius:50%;background:var(--accent);margin-top:.5rem;z-index:1;box-shadow:0 0 0 4px var(--bg)}
.time{color:var(--accent);font-size:.85rem;font-weight:800}
.news-list{border-top:1px solid var(--line)}
.news-list article{display:grid;grid-template-columns:110px 1fr;gap:1rem;border-bottom:1px solid var(--line);padding:1.1rem 0}
.news-list time{font-weight:800;color:var(--accent)}
.contact-section{background:linear-gradient(135deg,var(--bg-soft),var(--bg))}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}
.contact-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:1.6rem;box-shadow:var(--shadow)}
.contact-links{display:flex;gap:.8rem;flex-wrap:wrap}
footer{border-top:1px solid var(--line);padding:1.4rem 0}
.footer-row{display:flex;justify-content:space-between;color:var(--muted);font-size:.88rem}
@media(max-width:900px){
  .menu-toggle{display:block}
  .nav-links{
    display:none;position:absolute;left:1rem;right:1rem;top:72px;background:var(--card);
    border:1px solid var(--line);border-radius:14px;padding:1rem;box-shadow:var(--shadow);
    flex-direction:column;align-items:stretch
  }
  .nav-links.open{display:flex}
  .hero-grid,.two-col,.contact-grid{grid-template-columns:1fr;gap:3rem}
  .hero{text-align:center}
  .hero-summary{margin-inline:auto}
  .hero-actions,.social-row{justify-content:center}
  .photo-card{position:static;margin:1rem auto 0;max-width:360px;text-align:left}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .research-grid,.project-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
  .section{padding:4rem 0}
  .stats-grid{grid-template-columns:1fr}
  .stats-grid div{border-right:0;border-bottom:1px solid var(--line)}
  .stats-grid div:last-child{border-bottom:0}
  .publication,.news-list article{grid-template-columns:1fr;gap:.3rem}
  .section-head-row,.footer-row{display:block}
}

.cv-request-main{min-height:calc(100vh - 150px);padding:5rem 1rem;background:linear-gradient(135deg,var(--bg) 0%,var(--bg-soft) 100%)}
.cv-request-shell{width:min(100%,980px);margin:auto;display:grid;grid-template-columns:.8fr 1.2fr;gap:3rem;align-items:start}
.cv-request-intro h1,.success-card h1{font-family:Merriweather,serif;font-size:clamp(2.3rem,5vw,4rem)}
.privacy-note{margin-top:2rem;padding:1rem 1.1rem;border-left:4px solid var(--accent);background:var(--card);border-radius:8px}
.privacy-note p{color:var(--muted);margin:.25rem 0 0}
.cv-request-form{padding:1.7rem;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.cv-request-form label{display:block;margin-bottom:1rem;font-weight:700}
.cv-request-form input,.cv-request-form select,.cv-request-form textarea{width:100%;margin-top:.35rem;padding:.85rem .9rem;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--text);font:inherit}
.confirmation-box{display:flex!important;align-items:flex-start;gap:.7rem;font-weight:500!important}
.confirmation-box input{width:auto;margin-top:.32rem}
.submit-btn{border:0;cursor:pointer;font:inherit}
.form-help{margin-top:1rem;color:var(--muted);font-size:.88rem}
.honeypot{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important}
.success-page{min-height:100vh;display:grid;place-items:center;padding:1rem;background:linear-gradient(135deg,var(--bg) 0%,var(--bg-soft) 100%)}
.success-card{width:min(100%,620px);padding:2.2rem;text-align:center;border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:var(--shadow)}
.success-icon{width:64px;height:64px;margin:0 auto 1rem;display:grid;place-items:center;border-radius:50%;background:var(--accent);color:#fff;font-size:2rem;font-weight:800}
@media(max-width:800px){.cv-request-shell{grid-template-columns:1fr}}
@media(max-width:600px){.form-grid{grid-template-columns:1fr}}


/* Animated robotics hero */
.animated-hero{position:relative;min-height:760px;overflow:hidden;isolation:isolate;background:radial-gradient(circle at 72% 30%,rgba(35,130,210,.16),transparent 34%),radial-gradient(circle at 25% 70%,rgba(20,190,180,.10),transparent 35%),linear-gradient(135deg,var(--bg),var(--bg-soft))}
#robotics-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-3;pointer-events:none}
.hero-overlay{position:absolute;inset:0;z-index:-2;pointer-events:none;background:linear-gradient(90deg,color-mix(in srgb,var(--bg) 90%,transparent),color-mix(in srgb,var(--bg) 72%,transparent) 43%,color-mix(in srgb,var(--bg) 18%,transparent))}
.animated-hero .hero-grid{min-height:620px;position:relative;z-index:2}
.animated-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:150px;z-index:-1;background:linear-gradient(to top,var(--bg),transparent)}
@media(max-width:900px){.animated-hero{min-height:auto}.hero-overlay{background:color-mix(in srgb,var(--bg) 70%,transparent)}.animated-hero .hero-grid{min-height:auto}}
@media(prefers-reduced-motion:reduce){#robotics-canvas{display:none}}


/* =========================================================
   FINAL HERO LAYOUT FIX
   Prevents the moving keyword strip from pushing the photo
   outside the viewport.
========================================================= */

.animated-hero{
  position:relative;
  min-height:760px;
  overflow:hidden;
  isolation:isolate;
}

.animated-hero .hero-grid{
  position:relative;
  z-index:3;
  min-height:620px;
  display:grid;
  grid-template-columns:minmax(0,1.42fr) minmax(280px,.68fr);
  gap:clamp(2.5rem,6vw,5rem);
  align-items:center;
}

.hero-text{
  min-width:0;
  position:relative;
  z-index:4;
}

.hero-photo-wrap{
  min-width:0;
  position:relative;
  z-index:6;
  justify-self:center;
}

.hero-photo{
  position:relative;
  z-index:7;
  width:min(350px,30vw);
  min-width:260px;
  aspect-ratio:1;
  object-fit:cover;
  border-radius:28px;
  border:8px solid var(--card);
  box-shadow:var(--shadow);
  background:var(--card);
}

.photo-card{
  z-index:8;
}

#robotics-canvas{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  z-index:0;
  pointer-events:none;
}

.hero-overlay{
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:linear-gradient(
    90deg,
    color-mix(in srgb,var(--bg) 93%,transparent) 0%,
    color-mix(in srgb,var(--bg) 82%,transparent) 43%,
    color-mix(in srgb,var(--bg) 32%,transparent) 100%
  );
}

.animated-hero::after{
  z-index:2;
}

/* =========================================================
   SEAMLESS RESEARCH KEYWORD SLIDER
========================================================= */

.research-slider{
  --slider-gap:16px;
  width:100%;
  max-width:100%;
  min-width:0;
  overflow:hidden;
  position:relative;
  margin:18px 0 28px;
  padding:6px 0 10px;
  mask-image:linear-gradient(
    to right,
    transparent,
    #000 4%,
    #000 96%,
    transparent
  );
  -webkit-mask-image:linear-gradient(
    to right,
    transparent,
    #000 4%,
    #000 96%,
    transparent
  );
}

.slider-track{
  display:flex;
  width:max-content;
  min-width:max-content;
  gap:var(--slider-gap);
  will-change:transform;
  animation:continuousResearchSlide 32s linear infinite;
}

.slider-group{
  display:flex;
  align-items:center;
  flex-shrink:0;
  gap:var(--slider-gap);
}

.slider-track:hover{
  animation-play-state:paused;
}

@keyframes continuousResearchSlide{
  from{
    transform:translate3d(0,0,0);
  }
  to{
    transform:translate3d(
      calc(-50% - (var(--slider-gap) / 2)),
      0,
      0
    );
  }
}

.tag{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
  padding:10px 20px;
  border-radius:999px;
  color:#fff;
  font-size:14px;
  font-weight:750;
  line-height:1.2;
  white-space:nowrap;
  box-shadow:0 8px 18px rgba(0,0,0,.16);
  transition:transform .2s ease,box-shadow .2s ease;
}

.tag:hover{
  transform:translateY(-3px);
  box-shadow:0 12px 24px rgba(0,0,0,.20);
}

.blue{background:#1976d2}
.green{background:#2e7d32}
.orange{background:#ef6c00}
.purple{background:#8e24aa}
.cyan{background:#008fa1}
.red{background:#c62828}

@media(max-width:900px){
  .animated-hero .hero-grid{
    grid-template-columns:1fr;
    min-height:auto;
  }

  .hero-text{
    order:1;
  }

  .hero-photo-wrap{
    order:2;
  }

  .hero-photo{
    width:min(330px,78vw);
    min-width:0;
  }

  .research-slider{
    text-align:left;
  }

  .hero-overlay{
    background:color-mix(in srgb,var(--bg) 74%,transparent);
  }
}

@media(max-width:600px){
  .tag{
    padding:9px 16px;
    font-size:13px;
  }

  .slider-track{
    animation-duration:26s;
  }
}

@media(prefers-reduced-motion:reduce){
  .slider-track{
    animation:none;
    transform:none;
  }

  #robotics-canvas{
    display:none;
  }
}