:root{
  --bg:#0A0F1C; --bg2:#101A2E; --panel:#0F1A30;
  --paper:#FAFBFC; --paper2:#F1F4F8; --card:#FFFFFF;
  --ink:#0E1626; --ink2:#46546B; --ink3:#7B8798;
  --line:#E4E9F0; --line-d:rgba(255,255,255,0.10);
  --watt:#F7A93B; --watt-d:#FBB957; --flux:#19B5A4; --flux-d:#2BD0BE; --heat:#E0703F;
  /* hero scene tokens */
  --h-line:#5C6E92; --h-faint:#36425C; --h-watt:#F7A93B; --h-flux:#2FD0BE;
  --h-sun:#FBBD52; --h-steam:#9FAEC9; --h-panel:#13203B; --h-water:#F0A35E;
  --maxw:1180px; --radius:16px;
  --font:'Plus Jakarta Sans',system-ui,-apple-system,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--paper);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono);font-weight:500;letter-spacing:.02em}
.eyebrow{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--flux);display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--flux);opacity:.7}

/* ---------- NAV ---------- */
header{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .35s ease,border-color .35s ease,backdrop-filter .35s}
header.scrolled{background:rgba(10,15,28,.78);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line-d)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;letter-spacing:-.01em}
.brand .mark{width:30px;height:30px;flex:none}
.brand small{display:block;font-family:var(--mono);font-weight:400;font-size:10.5px;letter-spacing:.1em;color:#92A0BC;text-transform:uppercase;margin-top:1px;white-space:nowrap}
.links{display:flex;align-items:center;gap:30px}
.links a{color:#C3CDE0;font-size:14.5px;font-weight:500;transition:color .2s;position:relative}
.links a:hover{color:#fff}
.links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1.5px;background:var(--watt);transition:width .25s}
.links a:hover::after{width:100%}
.links .cta{padding:9px 18px;border:1px solid rgba(247,169,59,.5);border-radius:999px;color:var(--watt-d)}
.links .cta:hover{background:var(--watt);color:#0A0F1C;border-color:var(--watt)}
.links .cta::after{display:none}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:#fff;transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- HERO ---------- */
.hero{position:relative;background:radial-gradient(120% 90% at 78% 8%,#15233E 0%,#0A0F1C 60%);color:#EAF0FA;padding:130px 0 60px;overflow:hidden}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(to bottom,transparent,rgba(250,251,252,1))}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr 1.25fr;gap:40px;align-items:center;min-height:62vh}
.hero .eyebrow{font-size:16px;letter-spacing:.12em}
.hero .eyebrow::before{display:none}
.hero h1{font-size:clamp(30px,4vw,47px);line-height:1.08;font-weight:800;letter-spacing:-.02em;margin:18px 0 0}
.hero h1 .em{color:var(--watt-d)}
.hero h1 .deg{color:var(--watt-d)}
.hero .role{margin-top:20px;font-size:17px;color:#AEBBD2;max-width:46ch;font-weight:500}
.hero .role b{color:#fff;font-weight:600}
.hero .thesis{margin-top:22px;font-size:18.5px;line-height:1.55;color:#D6DEEC;max-width:46ch}
.hero .thesis b{color:#fff;font-weight:600}
.stats{display:flex;gap:clamp(14px,2.4vw,26px);margin-top:36px;flex-wrap:wrap}
.stat .num{font-family:var(--mono);font-size:24px;font-weight:500;color:var(--watt-d);letter-spacing:-.01em;line-height:1}
.stat .lab{font-size:11.5px;color:#8E9DB8;letter-spacing:.03em;margin-top:5px;white-space:nowrap}
.scroll-svg{width:100%;height:auto;display:block}
.scroll-cue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;color:#7E8DA8;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:7px}
.scroll-cue i{width:1px;height:30px;background:linear-gradient(#7E8DA8,transparent);display:block;animation:cue 2.2s ease-in-out infinite}
@keyframes cue{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

/* hero animation classes */
.flow{stroke-dasharray:1 15;stroke-linecap:round;animation:dash 1.25s linear infinite}
.flow.slow{animation-duration:1.7s}
@keyframes dash{to{stroke-dashoffset:-16}}
.ray{animation:rayp 3s ease-in-out infinite;transform-origin:140px 112px}
@keyframes rayp{0%,100%{opacity:.3}50%{opacity:.9}}
.steam{opacity:0;animation:steam 4.2s ease-out infinite}
@keyframes steam{0%{opacity:0;transform:translateY(0)}22%{opacity:.5}100%{opacity:0;transform:translateY(-46px)}}
.rotor{transform-box:view-box;transform-origin:540px 200px;animation:spin 7.5s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.spark{animation:spk 2.2s ease-in-out infinite}
@keyframes spk{0%,100%{opacity:.4}50%{opacity:1}}
.win{animation:win 3.4s ease-in-out infinite}
@keyframes win{0%,100%{opacity:.45}50%{opacity:.95}}

/* ---------- SECTIONS ---------- */
section{position:relative}
.pad{padding:104px 0}
.head{max-width:760px;margin-bottom:54px}
.head h2{font-size:clamp(28px,3.6vw,42px);line-height:1.1;font-weight:700;letter-spacing:-.02em;margin:16px 0 0}
.head p{margin-top:16px;font-size:17px;color:var(--ink2);max-width:62ch}

/* about */
.about{display:grid;grid-template-columns:1.5fr 1fr;gap:56px;align-items:start}
.about .lead{font-size:19px;line-height:1.62;color:var(--ink)}
.about .lead b{font-weight:600}
.about p+p{margin-top:18px;font-size:16.5px;color:var(--ink2)}
.focus{background:var(--paper2);border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 30px}
.focus h3{font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--ink3);margin-bottom:16px}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chips span{font-size:13px;font-weight:500;padding:7px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink2)}
.chips span.hot{border-color:rgba(247,169,59,.45);color:#B66E10;background:rgba(247,169,59,.08)}
.about p b{font-weight:600;color:var(--ink)}
.portrait{position:relative;margin:0;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/5;background:#0A0F1C;border:1px solid var(--line)}
.portrait img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.portrait .ph{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;background:radial-gradient(120% 90% at 70% 12%,#15233E,#0A0F1C)}
.portrait .ph .mono{font-size:12px;letter-spacing:.14em;color:#7E8DA8}
/* community */
.community{background:#FBF8F3}
.cgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:30px}
.ccard{background:#fff;border:1px solid #EFE7DA;border-radius:var(--radius);padding:30px 28px}
.ccard .ico{width:46px;height:46px;border-radius:12px;background:rgba(224,112,63,.12);display:flex;align-items:center;justify-content:center;color:var(--heat);margin-bottom:18px}
.ccard h3{font-size:18.5px;font-weight:700;letter-spacing:-.01em;margin-bottom:10px}
.ccard p{font-size:15px;color:var(--ink2);line-height:1.6}
.cnote{display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px}
.cnote .motto{font-style:italic;color:var(--ink2);font-size:15px}
.clink{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14.5px;color:var(--heat);border-bottom:2px solid rgba(224,112,63,.5);padding-bottom:2px}
.clink:hover{border-color:var(--heat)}

/* expertise grid */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px 28px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s}
.pcard:hover{transform:translateY(-5px);box-shadow:0 18px 40px -22px rgba(14,22,38,.35);border-color:#D4DCE8}
.pico{width:52px;height:52px;border-radius:13px;background:#0A0F1C;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.pcard .dom{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.13em;text-transform:uppercase;color:var(--flux)}
.pcard h3{font-size:19.5px;font-weight:700;letter-spacing:-.01em;margin:9px 0 11px;line-height:1.22}
.pcard p{font-size:15px;color:var(--ink2);line-height:1.6}

/* projects */
.projects{background:#0A0F1C;color:#EAF0FA}
.projects .head h2{color:#fff}
.projects .head p{color:#A9B6CE}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.proj{border:1px solid var(--line-d);border-radius:var(--radius);padding:28px;transition:background .3s,border-color .3s}
.proj:hover{background:#101B30;border-color:rgba(247,169,59,.3)}
.proj .tag{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--watt-d)}
.proj h3{font-size:18.5px;font-weight:600;margin:10px 0 10px;color:#fff;letter-spacing:-.01em}
.proj p{font-size:14.5px;color:#AAB7CF;line-height:1.58}

/* publications */
.pub{display:block;border-top:1px solid var(--line);padding:24px 0;display:grid;grid-template-columns:88px 1fr auto;gap:24px;align-items:baseline;transition:background .25s}
.pub:first-of-type{border-top:0}
.pub:hover{background:var(--paper2)}
.pub .yr{font-family:var(--mono);font-size:14px;color:var(--ink3)}
.pub .ti{font-size:16.5px;font-weight:600;line-height:1.42;color:var(--ink)}
.pub .jr{display:block;font-size:13.5px;font-weight:400;color:var(--flux);margin-top:5px;font-style:italic;font-family:var(--font)}
.pub .ar{color:var(--ink3);font-size:18px;transition:transform .25s,color .25s}
.pub:hover .ar{color:var(--watt);transform:translate(3px,-3px)}
.more{display:inline-flex;align-items:center;gap:10px;margin-top:34px;font-weight:600;font-size:15px;color:var(--ink);border-bottom:2px solid var(--watt);padding-bottom:3px}
.more:hover{gap:14px}

/* code band */
.code{background:var(--paper2)}
.repos{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:8px}
.repo{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 24px 20px;transition:transform .3s,box-shadow .3s,border-color .3s}
.repo:hover{transform:translateY(-4px);box-shadow:0 18px 40px -24px rgba(14,22,38,.3);border-color:#D4DCE8}
.repo-h{display:flex;align-items:center;gap:11px}
.repo-h .ci{width:20px;height:20px;color:var(--flux);flex:none}
.repo-h .rn{font-family:var(--mono);font-size:15px;font-weight:500;color:var(--ink)}
.repo-h .ext{width:15px;height:15px;margin-left:auto;color:var(--ink3);flex:none;transition:transform .25s,color .25s}
.repo:hover .ext{color:var(--watt);transform:translate(2px,-2px)}
.repo .rd{font-size:14px;color:var(--ink2);line-height:1.55;margin:13px 0 16px}
.repo-m{display:flex;align-items:center;gap:8px}
.repo .lang{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--ink2);font-family:var(--mono)}
.repo .lang i{width:10px;height:10px;border-radius:50%;background:var(--flux);flex:none}

/* contact */
.contact{background:radial-gradient(120% 120% at 20% 0%,#15233E 0%,#0A0F1C 60%);color:#EAF0FA}
.contact .head h2{color:#fff}
.contact .head p{color:#AEBBD2}
.contact .head{margin-left:auto;margin-right:auto;text-align:center}
.contact .channels{margin-left:auto;margin-right:auto}
.channels{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;max-width:760px;margin-top:8px}
.chan{display:flex;align-items:center;gap:16px;padding:20px 22px;border:1px solid var(--line-d);border-radius:14px;transition:border-color .3s,background .3s}
.chan:hover{border-color:rgba(247,169,59,.4);background:#101B30}
.chan .ic+span{display:flex;flex-direction:column;gap:2px;min-width:0}
.chan .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#8E9DB8}
.chan .v{font-size:15.5px;font-weight:600;color:#fff;margin-top:2px;overflow-wrap:break-word}
.chan .ic{width:40px;height:40px;border-radius:11px;background:rgba(247,169,59,.12);display:flex;align-items:center;justify-content:center;flex:none;color:var(--watt-d)}

footer{background:#070B14;color:#7E8DA8;padding:34px 0}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px}
.foot .mono{color:#9AA8C2}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal][data-d="1"]{transition-delay:.08s}
[data-reveal][data-d="2"]{transition-delay:.16s}
[data-reveal][data-d="3"]{transition-delay:.24s}

/* ---------- RESPONSIVE ---------- */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:18px;min-height:auto}
  .hero-art{order:-1}
  .about{grid-template-columns:1fr;gap:32px}
  .grid3{grid-template-columns:repeat(2,1fr)}
  .repos{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:720px){
  .links{position:fixed;inset:74px 0 auto 0;flex-direction:column;gap:0;background:rgba(10,15,28,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line-d);padding:8px 0;transform:translateY(-130%);transition:transform .35s ease;height:auto}
  .links.show{transform:translateY(0)}
  .links a{width:100%;padding:15px 28px;font-size:16px}
  .links a::after{display:none}
  .links .cta{margin:10px 28px;text-align:center;justify-content:center;display:flex}
  .burger{display:flex}
  .pad{padding:74px 0}
  .grid3,.grid2,.channels,.repos{grid-template-columns:1fr}
  .pub{grid-template-columns:1fr;gap:6px}
  .pub .ar{display:none}
  .stats{gap:26px}
  .foot{flex-direction:column;text-align:center}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .flow,.ray,.steam,.rotor,.spark,.win,.scroll-cue i{animation:none}
  [data-reveal]{opacity:1;transform:none;transition:none}
}