:root{
  --bg:#fff;--bg-soft:#f8fafc;--text:#0f172a;--muted:#475569;--card:#fff;--border:#e2e8f0;
  --blue:#2563eb;--green:#16a34a;--yellow:#f59e0b;
  --elev:0 14px 36px rgba(2,6,23,.18);--anim-fast:140ms;--anim-med:360ms;
}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important;}}
*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;background:var(--bg);color:var(--text);line-height:1.6}
.container{max-width:1140px;margin:0 auto;padding:0 1rem}
.h1{font-size:clamp(2.2rem,3vw+1rem,3.5rem);line-height:1.06;margin:0}.h2{font-size:clamp(1.6rem,1.6vw+1rem,2.1rem);margin:0}.h3{font-size:1.2rem;margin:0}.h4{font-size:1.05rem;margin:0}.subhead{margin-top:.6rem;color:var(--muted);font-size:1.15rem}
.gradient-text{background:linear-gradient(90deg,var(--blue),var(--green),var(--yellow));-webkit-background-clip:text;background-clip:text;color:transparent;animation:hue 6s linear infinite}
@keyframes hue{to{filter:hue-rotate(1turn)}}
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(6px);background:color-mix(in srgb,var(--bg) 85%,transparent);border-bottom:1px solid var(--border)}
.nav{height:64px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:.6rem}.logo-img{width:42px;height:42px;object-fit:contain}.brand-name{font-weight:900;letter-spacing:.6px}
.nav-links{list-style:none;display:flex;gap:1rem;margin:0;padding:0}.nav-links a{text-decoration:none;color:var(--text);position:relative}.nav-links a:after{content:'';position:absolute;left:0;right:100%;bottom:-6px;height:3px;background:linear-gradient(90deg,var(--blue),var(--green),var(--yellow));transition:right var(--anim-med) ease;border-radius:2px}.nav-links a:hover:after{right:0}
.nav-toggle{display:none}@media (max-width:720px){.nav-toggle{display:block;border:1px solid var(--border);background:#fff;border-radius:.6rem}.nav-links{position:absolute;right:1rem;top:64px;background:#fff;border:1px solid var(--border);border-radius:.8rem;padding:.6rem;width:260px;flex-direction:column;box-shadow:var(--elev)}.nav-links[data-collapsed="true"]{display:none}}
.section{padding:3.25rem 0;position:relative}.muted{color:var(--muted)}.hero{padding-top:2.8rem}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center}@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.cta-row{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1rem}.cred-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.55rem;margin-top:1rem;font-size:.9rem;color:var(--muted)}.chip{border:1px solid var(--border);padding:.55rem .8rem;border-radius:9999px;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.hero-photo img{width:250px;height:250px;object-fit:cover;border-radius:1.3rem;border:1px solid var(--border);box-shadow:0 12px 32px rgba(0,0,0,.12)}
.btn-primary,.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border-radius:.8rem;text-decoration:none;position:relative;overflow:hidden;transform:translateZ(0);cursor:pointer}
.btn-primary{background:var(--blue);color:#fff;padding:.65rem 1.05rem;font-weight:800;box-shadow:var(--elev)}.btn-outline{border:1px solid var(--border);color:var(--text);padding:.6rem 1rem;background:#fff}
.btn-primary:before,.btn-outline:before{content:'';position:absolute;inset:0;background:radial-gradient(130px 130px at var(--mx,50%) var(--my,50%),rgba(255,255,255,.4),transparent 45%);opacity:0;transition:opacity .12s}.btn-primary:hover:before,.btn-outline:hover:before{opacity:1}
/* Blobs + glow */
.bg-blobs{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:-1}.blob{position:absolute;filter:blur(38px);opacity:.35;mix-blend-mode:multiply;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--blue) 0%,var(--green) 60%,transparent 70%);animation:float 10s ease-in-out infinite}.blob-1{top:-60px;left:-60px}.blob-2{bottom:-80px;right:-80px;background:radial-gradient(circle at 70% 30%,var(--green),var(--blue) 60%,transparent 70%);animation-delay:1.4s}.blob-3{top:30%;left:60%;background:radial-gradient(circle at 50% 50%,var(--yellow),var(--green) 60%,transparent 70%);animation-delay:2.2s}
@keyframes float{50%{transform:translateY(14px) scale(1.06)}}
.cursor-glow{position:absolute;inset:0;pointer-events:none;background:radial-gradient(220px 220px at var(--gx,50%) var(--gy,50%),color-mix(in srgb,var(--blue) 28%,transparent),transparent 60%);opacity:.55;transition:opacity var(--anim-med)}
/* Section wash */
.interactive:before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(520px 360px at var(--hx,50%) var(--hy,50%),color-mix(in srgb,var(--yellow) 14%,transparent),transparent 60%);opacity:.55;transition:opacity var(--anim-med)}
/* Reveal */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity var(--anim-med),transform var(--anim-med)}.in-view{opacity:1!important;transform:translateY(0)!important}[data-reveal="left"]{transform:translateX(-28px)}[data-reveal="right"]{transform:translateX(28px)}
/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-top:1.25rem}@media(max-width:960px){.card-grid{grid-template-columns:1fr 1fr}}@media(max-width:640px){.card-grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--border);border-radius:1rem;padding:1rem;box-shadow:0 10px 28px rgba(0,0,0,.08);transition:transform .14s,box-shadow .14s,border-color .14s,background .14s;will-change:transform}.card:hover{transform:translateY(-8px) scale(1.03);box-shadow:var(--elev);border-color:color-mix(in srgb,var(--blue) 38%,var(--border));background:color-mix(in srgb,var(--green) 4%,#fff)}
.more-title{margin-top:1.6rem}.more-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem}
/* Publications & Education & Gallery */
.pub-list{list-style:none;padding:0;margin:1rem 0 0;display:grid;gap:.8rem}.pub-item{border:1px solid var(--border);border-radius:.8rem;padding:1rem;background:var(--card)}.edu-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1rem}@media(max-width:800px){.edu-grid{grid-template-columns:1fr}}
.gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem;margin-top:1rem}@media(max-width:900px){.gallery-grid{grid-template-columns:1fr 1fr}}@media(max-width:520px){.gallery-grid{grid-template-columns:1fr}}.gallery-item img{width:100%;height:100%;object-fit:cover;border-radius:.8rem;border:1px solid var(--border)}
/* Intro */
.intro{font-size:1.05rem}.tag-row{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.6rem}.tag{border:1px solid var(--border);padding:.35rem .6rem;border-radius:9999px}
.about-card{background:var(--card);border:1px solid var(--border);border-radius:1rem;padding:1rem;display:flex;flex-direction:column;gap:1rem;align-items:flex-start;box-shadow:var(--elev)}.badge{padding:.4rem .6rem;border-radius:.6rem;color:#fff;font-weight:800}.blue{background:var(--blue)}.green{background:var(--green)}.yellow{background:var(--yellow)}
/* Contact & footer */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:1rem}@media(max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-card{border:1px solid var(--border);border-radius:.8rem;padding:1rem;background:var(--card)}.contact-row{display:flex;align-items:center;gap:.6rem}
.contact-card input,.contact-card textarea{width:100%;background:#fff;color:var(--text);border:1px solid var(--border);border-radius:.6rem;padding:.65rem .8rem;margin-top:.5rem}.contact-card input:focus,.contact-card textarea:focus{outline:2px solid var(--blue);outline-offset:2px}.hp{display:none}
.site-footer{border-top:1px solid var(--border);background:var(--bg-soft);padding:2rem 0}.footer-grid{display:flex;justify-content:space-between;gap:1rem}.footer-links{display:flex;gap:1rem}.to-top{position:fixed;right:1rem;bottom:1rem;width:48px;height:48px;border-radius:14px;border:1px solid var(--border);background:#fff;color:var(--text);box-shadow:0 10px 28px rgba(0,0,0,.12);display:grid;place-items:center;opacity:0;pointer-events:none;transition:opacity var(--anim-med),transform var(--anim-med)}.to-top.show{opacity:1;pointer-events:auto}