*{margin:0;padding:0;box-sizing:border-box}
:root{
--accent:#6366f1;--accent2:#a855f7;--accent3:#199baf;
--grad-ink:linear-gradient(115deg,#6366f1 0%,#a855f7 50%,#199baf 100%);
--grad-btn:linear-gradient(115deg,#5d60e3 0%,#944bda 50%,#158191 100%);
--bg:#f7f7fc;--bg2:#ffffff;--card:#ffffff;--soft:#f1f0fb;
--text:#1c1a2e;--muted:#5f5c78;--border:#e6e4f3;
--shadow:0 10px 30px rgba(99,102,241,.10);--radius:16px}
html[data-theme="dark"]{
--bg:#101019;--bg2:#151526;--card:#181829;--soft:#1f1f33;
--text:#ecebf6;--muted:#a5a2c0;--border:#2b2b45;
--shadow:0 12px 34px rgba(0,0,0,.45)}
html{scroll-behavior:smooth}
body{font-family:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;transition:background .25s,color .25s;overflow-x:hidden}
.wrap{max-width:1120px;margin:0 auto;padding:0 clamp(16px,4vw,24px)}
a{color:var(--accent)}
img{max-width:100%;display:block;height:auto}
.skip{position:absolute;left:-999px}
.skip:focus{left:8px;top:8px;z-index:99;background:var(--card);padding:8px 12px;border-radius:8px}
header{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--bg2) 86%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;gap:16px;padding:13px clamp(16px,4vw,24px);max-width:1120px;margin:0 auto;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--text)}
.brand-badge{width:38px;height:38px;border-radius:11px;background:var(--grad-btn);display:grid;place-items:center;color:#fff;font-weight:700;font-size:.95rem;box-shadow:var(--shadow);flex:none}
.brand-name{font-weight:600;line-height:1.15}
.brand-sub{font-size:.72rem;color:var(--muted)}
.nav-links{display:flex;gap:2px;margin-left:auto;align-items:center}
.nav-links a{padding:7px 11px;border-radius:9px;color:var(--muted);font-size:.9rem;text-decoration:none;white-space:nowrap}
.nav-links a:hover{color:var(--text);background:var(--soft)}
.icon-btn{border:1px solid var(--border);background:var(--card);color:var(--text);width:36px;height:36px;border-radius:10px;cursor:pointer;font-size:1rem;display:grid;place-items:center}
#menuBtn{display:none}
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(620px 320px at 12% -5%,rgba(99,102,241,.16),transparent),radial-gradient(520px 300px at 88% 15%,rgba(25,155,175,.13),transparent)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.6fr 1fr;gap:48px;align-items:center;padding:clamp(48px,7vw,84px) clamp(16px,4vw,24px)}
.kicker{font-family:'JetBrains Mono',ui-monospace,Consolas,monospace;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.hero-title{font-size:clamp(1.9rem,5.2vw,3.7rem);line-height:1.08;font-weight:700;background:var(--grad-ink);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:14px}
.hero-sub{color:var(--muted);font-size:clamp(.95rem,1.6vw,1.06rem);max-width:56ch;margin-bottom:20px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.chip{border:1px solid var(--border);background:var(--card);padding:5px 13px;border-radius:999px;font-size:.83rem;color:var(--muted)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:12px;text-decoration:none;font-weight:600;font-size:.93rem;border:none;cursor:pointer}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{filter:brightness(1.07)}
.btn-ghost{background:var(--card);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--accent)}
.hero-photo-wrap{display:grid;place-items:center}
.hero-photo-ring{width:clamp(180px,24vw,262px);aspect-ratio:1/1;border-radius:50%;padding:5px;background:var(--grad-ink);box-shadow:var(--shadow)}
.hero-photo{width:100%;height:100%;border-radius:50%;object-fit:cover;object-position:top center}
.hero-photo-fallback{width:100%;height:100%;border-radius:50%;display:grid;place-items:center;background:var(--grad-btn);color:#fff;font-size:4rem;font-weight:700}
main section{padding:clamp(44px,6vw,64px) 0}
.alt{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{margin-bottom:28px}
.section-head h2{font-size:clamp(1.45rem,3vw,2.1rem);font-weight:700}
.section-head .rule{width:64px;height:4px;border-radius:2px;background:var(--grad-ink);margin-top:10px}
.sub-h{margin:26px 0 12px;font-size:1rem}
.about-body p{margin-bottom:12px;max-width:82ch}
.grid{display:grid;gap:clamp(12px,2vw,18px)}
/* AUTO-FIT: mobile/tablet/laptop — sab par apne aap full width me fit */
.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr))}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(16px,2.4vw,22px);box-shadow:var(--shadow)}
.card h3{font-size:1.02rem;margin-bottom:4px}
.muted{color:var(--muted)}
.note{font-size:.85rem;color:var(--muted);margin-top:6px}
.pub-no{font-family:'JetBrains Mono',monospace;font-size:.8rem;color:var(--accent);opacity:.9}
.pub-title{font-size:1.05rem;font-weight:600;margin:6px 0 4px}
.pub-meta{font-size:.88rem;color:var(--muted);margin-bottom:8px}
.pub-meta em{color:var(--text);font-style:italic}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tag{border:1px solid var(--border);background:var(--soft);padding:3px 10px;border-radius:999px;font-size:.75rem;color:var(--muted)}
.btn-sm{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:9px;border:1px solid var(--border);background:var(--card);color:var(--text);font-size:.8rem;text-decoration:none;font-weight:500}
.btn-sm:hover{border-color:var(--accent);color:var(--accent)}
.edu-inst{color:var(--accent);font-weight:600}
.edu-score{display:inline-block;font-family:'JetBrains Mono',monospace;font-size:.78rem;background:var(--soft);border:1px solid var(--border);border-radius:999px;padding:2px 10px;color:var(--text);margin-top:6px}
.about-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,300px);gap:28px;align-items:start}
.about-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:sticky;top:86px}
.lab-row{display:flex;flex-direction:column;gap:3px;padding:12px 0;border-bottom:1px dashed var(--border);font-size:.88rem}
.lab-row:last-child{border-bottom:none}
.lab-k{font-family:'JetBrains Mono',monospace;font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}
.about-card a{color:var(--accent);text-decoration:none;word-break:break-all}
.about-card a:hover{text-decoration:underline}
.skill-cat{margin-bottom:20px}
.skill-cat h3{font-size:.95rem;margin-bottom:10px}
.skill-cat h3 span{color:var(--muted);font-weight:400}
.pill-row{display:flex;flex-wrap:wrap;gap:8px}
.pill{border:1px solid var(--border);background:var(--card);padding:6px 14px;border-radius:999px;font-size:.85rem}
.gal{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(min(100%,210px),1fr))}
.gal-item{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--border);background:var(--soft);aspect-ratio:4/3;box-shadow:var(--shadow)}
.gal-item img{width:100%;height:100%;object-fit:cover;object-position:top center;transition:transform .35s ease}
.gal-item:hover img{transform:scale(1.05)}
.gal-cap{position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;background:linear-gradient(transparent,rgba(10,8,30,.82));color:#fff;font-size:.8rem;font-weight:500}
.gal-item.noimg{display:grid;place-items:center;color:var(--muted);font-size:.85rem;text-align:center;padding:10px}
.gal-item.noimg .gal-cap{position:static;background:none;color:var(--muted);padding:0;font-size:.85rem}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr));gap:14px}
.contact-item{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.contact-item .ico{flex:none;width:42px;height:42px;border-radius:12px;background:var(--soft);display:grid;place-items:center;font-size:1.1rem}
.contact-item a{color:var(--text);text-decoration:none;font-weight:500;word-break:break-all}
.contact-item a:hover{color:var(--accent)}
.contact-item .lab{font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
footer{background:var(--bg2);border-top:1px solid var(--border);padding:40px 0 30px;margin-top:20px}
.foot{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:32px;margin-bottom:26px}
.foot h4{font-size:.95rem;margin-bottom:12px}
.foot ul{list-style:none}
.foot li{margin-bottom:8px;font-size:.88rem}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--accent)}
.foot-brand{display:flex;gap:11px;align-items:center;margin-bottom:12px}
.copyright{border-top:1px solid var(--border);padding-top:18px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:.8rem;color:var(--muted)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.on{opacity:1;transform:none}
/* ---------- responsive (auto-fit grids zyada-trar handle karte hain,
   ye sirf layout-level tweaks hain) ---------- */
@media(max-width:1024px){.about-layout{grid-template-columns:1fr}.about-card{position:static}}
@media(max-width:960px){.hero .wrap{grid-template-columns:1fr;gap:32px;text-align:left}.hero-photo-wrap{order:-1}}
@media(max-width:768px){
.nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--border);flex-direction:column;padding:10px 16px;max-height:70vh;overflow-y:auto}
.nav-links.open{display:flex}
#menuBtn{display:grid;margin-left:auto}
.hero .wrap{padding-top:36px;padding-bottom:36px}
}
@media(max-width:480px){
.btn{width:100%;justify-content:center}
.about-card{padding:18px}
.copyright{flex-direction:column;gap:6px}
}