:root{
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Inter","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --blue:#0a84ff; --purple:#bf5af2; --teal:#64d2ff;
  --radius:22px;
  --ease:cubic-bezier(.22,.8,.2,1);
}
html[data-theme="dark"]{
  --bg:#05060a; --text:#f5f5f7; --muted:#a1a1a8; --card:rgba(22,24,32,.62); --card-solid:#14151c;
  --border:rgba(255,255,255,.10); --chip:rgba(255,255,255,.07); --nav:rgba(10,11,16,.62);
  --shadow:0 20px 60px rgba(0,0,0,.45); --glow:rgba(10,132,255,.35); color-scheme:dark;
}
html[data-theme="light"]{
  --bg:#f5f5f7; --text:#1d1d1f; --muted:#5f5f66; --card:rgba(255,255,255,.72); --card-solid:#fff;
  --border:rgba(0,0,0,.08); --chip:rgba(0,0,0,.05); --nav:rgba(255,255,255,.7);
  --shadow:0 20px 50px rgba(30,40,80,.12); --glow:rgba(10,132,255,.25); color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{overflow-x:clip;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.55;overflow-x:hidden;-webkit-font-smoothing:antialiased;transition:background-color .5s var(--ease),color .5s var(--ease)}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:8px}

#bg3d{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;transition:opacity .6s}
.bg-fallback{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(60% 50% at 75% 20%,rgba(10,132,255,.28),transparent 70%),radial-gradient(50% 45% at 15% 80%,rgba(191,90,242,.22),transparent 70%)}
main,.footer,.nav{position:relative;z-index:2}
.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:100;pointer-events:none}
.progress span{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:left;background:linear-gradient(90deg,var(--blue),var(--purple))}

/* NAV */
.nav{position:fixed;top:12px;left:50%;transform:translateX(-50%);z-index:50;width:min(1100px,calc(100% - 24px));
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px 8px 14px;border-radius:999px;
  background:var(--nav);border:1px solid var(--border);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);box-shadow:var(--shadow)}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:-.01em}
.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;font-size:13px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--blue),var(--purple))}
.nav nav ul{display:flex;gap:4px}
.nav nav a{display:block;padding:7px 12px;border-radius:999px;font-size:14px;color:var(--muted);transition:color .2s,background .2s}
.nav nav a:hover,.nav nav a.active{color:var(--text);background:var(--chip)}
.theme-toggle{width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:var(--chip);color:var(--text);cursor:pointer;display:grid;place-items:center;transition:transform .3s var(--ease)}
.theme-toggle:hover{transform:rotate(18deg) scale(1.08)}
html[data-theme="dark"] .i-sun{display:none}
html[data-theme="light"] .i-moon{display:none}

/* HERO */
.hero{min-height:100svh;display:flex;align-items:center;padding:120px max(24px,calc((100% - 1100px)/2)) 80px;position:relative}
.hero-inner{max-width:620px}
.eyebrow{display:inline-block;font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--blue);padding:6px 14px;border-radius:999px;background:var(--chip);border:1px solid var(--border);margin-bottom:22px}
.hero-title{font-size:clamp(54px,4.9vw,68px);line-height:1.02;letter-spacing:-.04em;font-weight:800;margin-bottom:22px}
.hero-title .line{display:block;overflow:hidden;padding-bottom:.08em}
.hero-title .word{display:inline-block}
.grad{background:linear-gradient(100deg,var(--blue),var(--purple) 25%,#ff6482 50%,var(--purple) 75%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% 100%;animation:shine 7s linear infinite}
@keyframes shine{to{background-position:-200% 0}}
.hero-sub{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:560px;margin-bottom:30px}
.hero-sub strong{color:var(--text)}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.cta.center{justify-content:center}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:600;font-size:16px;border:1px solid transparent;transition:transform .25s var(--ease),box-shadow .25s,background .25s;cursor:pointer;will-change:transform}
.btn.primary{color:#fff;background:linear-gradient(135deg,var(--blue),#5e5ce6);box-shadow:0 10px 30px var(--glow)}
.btn.primary:hover{box-shadow:0 14px 40px var(--glow);transform:translateY(-2px)}
.btn.ghost{background:var(--card);border-color:var(--border);color:var(--text);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.btn.ghost:hover{transform:translateY(-2px);background:var(--chip)}
.stats{display:flex;gap:34px;margin-top:40px;flex-wrap:wrap}
.stats li{display:flex;flex-direction:column}
.stats b{font-size:34px;letter-spacing:-.03em;line-height:1.1}
.stats span{font-size:13px;color:var(--muted)}
.scroll-cue{position:absolute;bottom:26px;left:50%;width:24px;height:38px;border-radius:14px;border:2px solid var(--muted);opacity:.6;transform:translateX(-50%)}
.scroll-cue span{position:absolute;left:50%;top:7px;width:3px;height:7px;margin-left:-1.5px;border-radius:3px;background:var(--muted);animation:cue 1.8s infinite}
@keyframes cue{0%{opacity:0;transform:translateY(0)}30%{opacity:1}100%{opacity:0;transform:translateY(14px)}}

/* MARQUEE */
.marquee{overflow:hidden;border-block:1px solid var(--border);background:var(--card);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);padding:16px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;gap:44px;width:max-content;animation:marq 38s linear infinite}
.marquee span{font-size:19px;font-weight:600;color:var(--muted);white-space:nowrap}
.marquee span::after{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;margin-left:44px;vertical-align:middle;background:linear-gradient(135deg,var(--blue),var(--purple))}
@keyframes marq{to{transform:translateX(calc(-50% - 22px))}}

/* SECTIONS */
.section{padding:clamp(70px,11vw,130px) 24px}
.wrap{max-width:1100px;margin:0 auto}
.kicker{font-size:14px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:12px}
h2{font-size:clamp(32px,5vw,56px);line-height:1.08;letter-spacing:-.035em;font-weight:800;margin-bottom:40px}
h3{font-size:19px;letter-spacing:-.01em;font-weight:700}
.lead{font-size:clamp(17px,2vw,20px);color:var(--muted)}

.card{position:relative;padding:26px;border-radius:var(--radius);background:var(--card);border:1px solid var(--border);
  -webkit-backdrop-filter:saturate(160%) blur(18px);backdrop-filter:saturate(160%) blur(18px);box-shadow:var(--shadow);
  transform-style:preserve-3d;transition:transform .45s var(--ease),border-color .3s,box-shadow .3s;will-change:transform}
.card.tilt::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.14),transparent 45%)}
html[data-theme="light"] .card.tilt::after{background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(10,132,255,.10),transparent 45%)}
.card.tilt:hover::after{opacity:1}
.card.tilt:hover{border-color:rgba(10,132,255,.45)}
.card p{color:var(--muted)}
.card h3{margin-bottom:6px}

.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.about-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-cards .card{padding:20px}
.about-cards p{font-size:14px}

/* TIMELINE */
.timeline{position:relative;padding-left:38px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;border-radius:2px;background:var(--border)}
.timeline::after{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(var(--blue),var(--purple));transform-origin:top;transform:scaleY(var(--tl,1))}
.t-item{position:relative;margin-bottom:28px}
.t-item:last-child{margin-bottom:0}
.dot{position:absolute;left:-38px;top:30px;width:20px;height:20px;border-radius:50%;background:var(--bg);border:3px solid var(--blue);box-shadow:0 0 0 6px var(--glow)}
.t-item header{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.org{font-size:15px}
.date{font-size:13px;font-weight:600;color:var(--blue);padding:6px 12px;border-radius:999px;background:var(--chip);height:fit-content;white-space:nowrap}
.bullets{display:grid;gap:9px;margin-bottom:18px}
.bullets li{position:relative;padding-left:20px;color:var(--muted);font-size:15.5px}
.bullets li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--purple))}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;background:var(--chip);border:1px solid var(--border)}

/* PROJECTS */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{grid-column:1/-1;padding:34px;background:linear-gradient(135deg,rgba(10,132,255,.20),rgba(191,90,242,.16)),var(--card)}
.feature h3{font-size:clamp(28px,4vw,40px);letter-spacing:-.03em}
.feature .sub{font-size:17px;color:var(--text);opacity:.85;margin-bottom:12px}
.feature>p:not(.sub){max-width:680px;margin-bottom:18px}
.tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin-bottom:10px}
.food-head{grid-column:1/-1;display:flex;align-items:baseline;gap:14px;margin-top:14px}
.food-head p{color:var(--muted);font-size:15px}
.app-icon{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;margin-bottom:16px;font-size:24px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--blue),var(--purple));box-shadow:0 8px 20px var(--glow)}
.app:nth-of-type(3) .app-icon{background:linear-gradient(135deg,#ff9f0a,#ff375f)}
.app:nth-of-type(4) .app-icon{background:linear-gradient(135deg,#30d158,#0a84ff)}
.link{display:inline-block;margin-top:14px;font-weight:600;color:var(--blue)}
.link:hover{text-decoration:underline}

/* SKILLS */
.skills-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.skills-grid .card{padding:22px}
.skills-grid h3{font-size:15px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.07em;margin-bottom:14px}

/* EDUCATION */
.edu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.year{display:inline-block;font-size:40px;font-weight:800;letter-spacing:-.04em;line-height:1;margin-bottom:12px;background:linear-gradient(135deg,var(--blue),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.edu-grid p{font-size:15px;margin-bottom:12px}
.score{font-size:13px;font-weight:700;padding:5px 11px;border-radius:999px;background:var(--chip)}
.langs{margin-top:26px;color:var(--muted)}

/* CONTACT */
.contact-card{text-align:center;padding:clamp(34px,6vw,70px) 24px;background:linear-gradient(135deg,rgba(10,132,255,.22),rgba(191,90,242,.18)),var(--card)}
.contact-card h2{margin-bottom:16px}
.contact-card .lead{max-width:520px;margin:0 auto 28px}
.btn.primary{word-break:break-all;text-align:center}
.footer{padding:30px 24px 50px;text-align:center;color:var(--muted);font-size:14px}

/* reveal initial state (only when JS animation active) */
html.anim [data-reveal]{opacity:0}
html.anim [data-hero]{opacity:0}

/* responsive */
@media (max-width:900px){
  .nav nav{display:none}
  .about-grid{grid-template-columns:1fr}
  .proj-grid,.skills-grid,.edu-grid{grid-template-columns:1fr 1fr}
  .food-head{margin-top:6px}
}
@media (max-width:640px){
  .hero{align-items:flex-end;padding:100px 20px 70px}
  .hero-title{font-size:clamp(42px,13vw,64px)}
  .section{padding:64px 18px}
  .about-cards,.proj-grid,.skills-grid,.edu-grid{grid-template-columns:1fr}
  .timeline{padding-left:30px}
  .dot{left:-30px;width:18px;height:18px;top:28px}
  .timeline::before,.timeline::after{left:8px}
  .card{padding:20px}
  .stats{gap:24px;margin-top:28px}
  .stats b{font-size:28px}
  .scroll-cue{display:none}
  .btn{padding:13px 22px;font-size:15px}
  .brand-text{display:inline}
  h2{margin-bottom:28px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important}
  .marquee-track{animation:none}
  html.anim [data-reveal],html.anim [data-hero]{opacity:1}
}

/* PORTRAIT — only the photo spins (Y axis); static glow */
.portrait{flex:none;width:clamp(260px,24vw,340px);position:relative;z-index:3}
.portrait-stage{position:relative;perspective:1000px;aspect-ratio:1}
.portrait-glow{position:absolute;inset:-4%;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--purple),#ff6482);filter:blur(38px);opacity:.5}
.portrait-spin{position:absolute;inset:0;transform-style:preserve-3d;animation:pspin 9s linear infinite}
@keyframes pspin{to{transform:rotateY(360deg)}}
.face{position:absolute;inset:0;border-radius:50%;padding:5px;backface-visibility:hidden;-webkit-backface-visibility:hidden;
  background:conic-gradient(from 210deg,var(--blue),var(--purple),#ff6482,var(--blue));box-shadow:var(--shadow)}
.face.front{transform:translateZ(4px)}
.face.back{transform:rotateY(180deg) translateZ(4px)}
.face img{display:block;width:100%;height:100%;border-radius:50%;object-fit:cover}
.hero{gap:clamp(32px,4.5vw,72px)}
.hero-inner{max-width:540px}
@media (max-width:1180px){
  .hero{flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:0;padding-top:96px}
  .portrait{width:min(190px,48vw);margin:0 0 40px}
  .hero-inner{max-width:620px}
}
@media (max-width:640px){.hero{padding-top:92px}}
@media (prefers-reduced-motion:reduce){.portrait-spin{animation:none}}

/* BLOG (home section) */
.blog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.post-card{display:flex;flex-direction:column;padding:28px}
.post-card h3{font-size:clamp(21px,2.4vw,26px);line-height:1.2;letter-spacing:-.02em;margin:6px 0 10px}
.post-card p{flex:1}
.post-card .meta{display:flex;gap:10px;align-items:center;margin:16px 0 14px;font-size:14px;color:var(--muted)}
.post-card .link{margin-top:0;align-self:flex-start}
.post-card .link::after{content:"";position:absolute;inset:0;border-radius:inherit}
.all-posts{margin-top:26px}
@media (max-width:700px){.blog-grid{grid-template-columns:1fr}}