/* Nitesh Rawal — interactive engineering identity
   Mobile-first. Tokens first, then base, then one block per section. */

@font-face{font-family:"Space Grotesk";src:url("fonts/space-grotesk-latin-wght-normal.woff2") format("woff2");font-weight:300 700;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url("fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url("fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap}

:root{
  --ink:#07080b;
  --ink-2:#0d0f14;
  --line:#1d212b;
  --chalk:#eceee8;
  --muted:#9aa0ab;
  --lime:#c6ff3d;
  --uv:#8b6cff;
  --pad:clamp(20px,5.5vw,56px);
  --max:1120px;
  --sans:"Space Grotesk",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;background:var(--ink)}
body{margin:0;background:var(--ink);color:var(--chalk);font-family:var(--sans);font-size:1rem;line-height:1.5;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img,canvas,svg{display:block;max-width:100%}
a{color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.lime{color:var(--lime)}.violet{color:var(--uv)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:12px;top:-60px;z-index:100;background:var(--lime);color:var(--ink);padding:10px 14px;font-weight:600;text-decoration:none;transition:top .2s}
.skip:focus{top:12px}

.progress{position:fixed;inset:0 0 auto 0;height:2px;z-index:50;pointer-events:none}
.progress i{display:block;height:100%;background:var(--lime);transform:scaleX(0);transform-origin:0 50%}

.cursor{position:fixed;left:0;top:0;width:30px;height:30px;margin:-15px 0 0 -15px;border:1px solid var(--lime);border-radius:50%;z-index:60;pointer-events:none;opacity:0;transition:opacity .3s,width .25s var(--ease),height .25s var(--ease),margin .25s var(--ease)}
.cursor.is-on{opacity:.8}
.cursor.is-hot{width:54px;height:54px;margin:-27px 0 0 -27px}
@media (pointer:coarse){.cursor{display:none}}

.smoke-trail{position:fixed;inset:0;width:100%;height:100%;z-index:45;pointer-events:none;mix-blend-mode:screen}

/* ---------- shared bits ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6em;min-height:52px;padding:0 1.4rem;font:600 .82rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;text-decoration:none;border:1px solid var(--lime);border-radius:2px;cursor:pointer;transition:transform .25s var(--ease),background .25s,color .25s}
.btn--primary{background:var(--lime);color:var(--ink)}
.btn--ghost{background:transparent;color:var(--lime)}
.btn:hover{transform:translateY(-2px)}
.btn--ghost:hover{background:rgba(198,255,61,.1)}
.btn:active{transform:translateY(0) scale(.98)}

.tags{display:flex;flex-wrap:wrap;gap:.3rem 1.1rem;font:400 .85rem/1.5 var(--mono);color:var(--muted)}
.tags--core{font:600 1.2rem/1.3 var(--sans);color:var(--chalk);gap:.2rem 1.1rem;margin-bottom:.7rem}
.tags--core li:first-child{color:var(--lime)}

.sec{position:relative;max-width:var(--max);margin:0 auto;padding:clamp(76px,14vw,150px) var(--pad);padding-bottom:max(clamp(76px,14vw,150px),calc(40px + env(safe-area-inset-bottom)))}
.kicker{font:500 .78rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:1.4rem}
.big{font-size:clamp(2.5rem,11.5vw,5.8rem);font-weight:700;line-height:.95;letter-spacing:-.035em}
.lede{margin-top:1.4rem;max-width:40ch;color:var(--muted);font-size:1.05rem}
.sub{font:500 .78rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:clamp(56px,10vw,96px) 0 1rem}

/* scroll reveal — only when JS is running */
.js .rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:calc(var(--d,0)*70ms)}
.js .rv.in{opacity:1;transform:none}

/* ---------- 01 hero ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;isolation:isolate;
  background:
    radial-gradient(60% 45% at 78% 22%,rgba(139,108,255,.20),transparent 70%),
    radial-gradient(50% 40% at 15% 85%,rgba(198,255,61,.07),transparent 70%),
    var(--ink)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:56px 56px;opacity:.35;
  -webkit-mask-image:radial-gradient(70% 60% at 70% 30%,#000,transparent 75%);mask-image:radial-gradient(70% 60% at 70% 30%,#000,transparent 75%)}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1;touch-action:pan-y;cursor:grab}
.hero__fallback{position:absolute;z-index:-1;right:-8%;top:3%;width:min(86vw,520px);color:var(--lime);opacity:.5;pointer-events:none}
.has-canvas .hero__fallback{display:none}

.hero__inner{padding:clamp(88px,14svh,160px) var(--pad) calc(28px + env(safe-area-inset-bottom));width:100%;max-width:calc(var(--max) + 2*var(--pad));margin:0 auto;pointer-events:none}
.hero__inner a{pointer-events:auto}

.eyebrow{display:flex;align-items:center;gap:.7rem;font:500 .8rem/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--lime);animation:rise .9s var(--ease) both .1s}
.dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 0 rgba(198,255,61,.6);animation:ping 2.4s infinite}
@keyframes ping{70%{box-shadow:0 0 0 10px rgba(198,255,61,0)}100%{box-shadow:0 0 0 0 rgba(198,255,61,0)}}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

.name{margin:.7rem 0 0;font-size:clamp(3.4rem,21vw,10.5rem);font-weight:700;line-height:.86;letter-spacing:-.05em;text-transform:uppercase}
.name__row{display:block;overflow:hidden;padding:.04em .03em 0}
.name__row span{display:inline-block;transform:translateY(105%);animation:letter 1s var(--ease) forwards;animation-delay:calc(var(--i)*60ms + .25s);
  background:linear-gradient(172deg,#fff 8%,#c9ced8 30%,#5b6270 52%,#e7eaf0 66%,#7f8796 100%);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.name__row--outline span{background:none;-webkit-text-fill-color:transparent;-webkit-text-stroke:1.5px var(--lime);color:transparent}
@keyframes letter{to{transform:none}}

.spec{margin-top:1.2rem;font:500 .8rem/1.6 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--chalk);animation:rise .9s var(--ease) both .95s}
.spec i{color:var(--lime);font-style:normal;margin:0 .15em}
.statement{margin-top:.9rem;max-width:20ch;font-size:clamp(1.3rem,5.4vw,2rem);font-weight:500;line-height:1.12;letter-spacing:-.02em;animation:rise .9s var(--ease) both 1.1s}
.statement em{font-style:normal;color:var(--lime)}

.hero__meta{display:flex;align-items:center;gap:1rem;margin-top:1.4rem;animation:rise .9s var(--ease) both 1.25s}
.plate{position:relative;width:84px;height:84px;margin:0 6px 6px 0;flex:none;--px:0;--py:0;--sp:0;
  transform:translate3d(calc(var(--px)*8px),calc(var(--py)*8px + var(--sp)*-14px),0)}
.plate img{width:100%;height:100%;object-fit:cover;object-position:50% 25%;filter:grayscale(1) contrast(1.15) brightness(.95);clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,0 100%)}
.plate::after{content:"";position:absolute;inset:0;background:linear-gradient(150deg,var(--uv),var(--lime));mix-blend-mode:color;opacity:.55;clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,0 100%)}
.plate i{position:absolute;inset:0;border:1px solid;pointer-events:none;transition:transform .2s linear}
.plate__r{border-color:var(--lime);transform:translate3d(calc(var(--px)*-8px + 6px),calc(var(--py)*-8px + 6px),0)}
.plate__b{border-color:var(--uv);transform:translate3d(calc(var(--px)*-14px - 5px),calc(var(--py)*-14px - 5px),0)}
.years{display:flex;align-items:baseline;gap:.7rem}
.years b{font-size:clamp(2.6rem,10vw,3.6rem);font-weight:700;letter-spacing:-.04em;line-height:1;color:var(--lime)}
.years span{font:400 .8rem/1.3 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}

.cta{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.4rem;animation:rise .9s var(--ease) both 1.4s}
.cta .btn{flex:1 1 130px;padding:0 1rem}

.scroll-cue{display:none}

/* ---------- 02 universe ---------- */
.uni{margin-top:clamp(32px,6vw,56px);display:grid;gap:2.2rem;align-items:start}
.uni__map{position:relative;width:min(100%,460px);aspect-ratio:1;margin:0 auto 2rem}
.uni__lines{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.uni__lines line,.uni__lines circle{fill:none;stroke:var(--lime);stroke-opacity:.35;stroke-width:1;vector-effect:non-scaling-stroke;stroke-dasharray:3 5}
.uni__lines circle{stroke:var(--uv);stroke-opacity:.5}
.uni__lines line{animation:flow 2.6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-16}}

.uni__core{position:absolute;left:50%;top:50%;width:40%;aspect-ratio:1;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#2a2f3b,#0b0d12 70%);border:1px solid #3a4150;box-shadow:inset 0 0 30px rgba(139,108,255,.25),0 0 60px rgba(139,108,255,.12)}
.uni__core-k{font:500 .75rem/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--lime)}
.uni__core strong{margin-top:.35rem;font-size:clamp(.95rem,4.4vw,1.3rem);line-height:1.1;letter-spacing:-.02em}
.uni__core-s{display:none;margin-top:.4rem;font:400 .75rem/1.3 var(--mono);color:var(--muted)}

.node{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%);width:58px;height:58px;padding:0;border:1px solid #4a5263;border-radius:50%;background:var(--ink-2);color:var(--chalk);cursor:pointer;font:inherit;transition:background .25s,border-color .25s,transform .35s var(--ease)}
.node b{font:600 1.1rem/1 var(--mono)}
.node span{position:absolute;top:calc(100% + 6px);left:50%;transform:translateX(-50%);width:max-content;max-width:104px;text-align:center;font:500 .75rem/1.2 var(--mono);letter-spacing:.04em;color:var(--muted);transition:color .25s}
.node:hover{border-color:var(--lime);transform:translate(-50%,-50%) scale(1.08)}
.node[aria-pressed="true"]{background:var(--lime);border-color:var(--lime);color:var(--ink);transform:translate(-50%,-50%) scale(1.12)}
.node[aria-pressed="true"] span{color:var(--lime)}
.node[aria-pressed="true"]::before{content:"";position:absolute;inset:-8px;border-radius:50%;border:1px solid var(--lime);opacity:.0;animation:halo 2s ease-out infinite}
@keyframes halo{0%{opacity:.7;transform:scale(.9)}100%{opacity:0;transform:scale(1.35)}}

.uni__panel{min-height:15rem;padding:1.4rem 0 0 1.2rem;border-left:2px solid var(--lime)}
.group h3{font-size:1.35rem;font-weight:600;letter-spacing:-.02em;line-height:1.15}
.group h3 b{font:600 .8rem/1 var(--mono);color:var(--ink);background:var(--lime);padding:.25em .5em;margin-right:.5rem;vertical-align:.15em}
.group p{margin:.7rem 0 1rem;color:var(--muted);max-width:44ch}
.js .group:not(.is-active){display:none}
.js .group.is-active{animation:rise .5s var(--ease)}
.group+.group{margin-top:2.5rem}
.js .group+.group{margin-top:0}

/* ---------- 03 pipeline ---------- */
.sec--pipe::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(45% 45% at 35% 40%,rgba(139,108,255,.13),transparent 100%)}
.pipe{position:relative;margin-top:clamp(36px,7vw,64px)}
.pipe__list{position:relative}
.pipe__rail{position:absolute;left:11px;top:10px;bottom:10px;width:2px;background:var(--line);overflow:hidden}
.pipe__fill{position:absolute;inset:0;background:linear-gradient(var(--lime),var(--uv));transform-origin:50% 0;transform:scaleY(var(--fill,0))}
.pipe__pulse{position:absolute;left:-3px;width:8px;height:70px;background:linear-gradient(transparent,#fff,transparent);opacity:0;top:100%}
.is-tracing .pipe__pulse{opacity:.9;animation:up 1.1s linear infinite}
@keyframes up{from{top:100%}to{top:-70px}}

.stage{position:relative;padding:0 0 2.2rem 52px}
.stage::before{content:"";position:absolute;left:5px;top:.35rem;width:14px;height:14px;border-radius:50%;background:var(--ink);border:2px solid #4a5263;transition:background .4s,border-color .4s,box-shadow .4s}
.stage__no{display:block;font:500 .78rem/1 var(--mono);letter-spacing:.12em;color:var(--muted)}
.stage h3{margin-top:.35rem;font-size:clamp(1.4rem,6vw,2rem);font-weight:600;letter-spacing:-.025em;line-height:1.05;color:#6f7686;transition:color .4s}
.stage p{margin:.5rem 0 .7rem;max-width:40ch;color:var(--muted)}
.stage .tags{color:#6f7686;transition:color .4s}
.stage.is-lit::before{background:var(--lime);border-color:var(--lime)}
.stage.is-lit h3{color:var(--chalk)}
.stage.is-lit .tags{color:var(--lime)}
.stage.is-hot::before{background:var(--uv);border-color:#fff;box-shadow:0 0 0 6px rgba(139,108,255,.3)}
.stage.is-hot h3{color:#fff}
.stage.is-hot .tags{color:#c9b8ff}
.js .stage:not(.is-lit):not(.is-hot) p{opacity:.6}

.trace{margin-top:1rem;padding-left:52px;display:grid;gap:1rem;justify-items:start}
.trace__note{max-width:46ch;color:var(--muted);font-size:.98rem;min-height:4.6em}

/* ---------- 04 capabilities ---------- */
.caps{margin-top:clamp(32px,6vw,56px);display:grid}
.caps li{display:grid;grid-template-columns:3.2rem 1fr;gap:.2rem;padding:1.15rem 0;border-top:1px solid var(--line);font-size:clamp(1.1rem,4.6vw,1.45rem);font-weight:500;line-height:1.25;letter-spacing:-.015em}
.caps li:last-child{border-bottom:1px solid var(--line)}
.caps span{font:500 .8rem/1.9 var(--mono);color:var(--lime)}
.repos li+li{margin-top:.6rem}
.repos a{position:relative;display:grid;gap:.35rem;padding:1.15rem 3rem 1.15rem 1.1rem;border:1px solid var(--line);border-radius:2px;text-decoration:none;background:var(--ink-2);min-height:64px;transition:border-color .25s,transform .3s var(--ease)}
.repos a:hover{border-color:var(--lime);transform:translateX(4px)}
.repos__t{font-size:1.2rem;font-weight:600;letter-spacing:-.02em}
.repos__d{color:var(--muted);font-size:.95rem;max-width:62ch}
.repos__go{position:absolute;right:1.1rem;top:1.05rem;font:500 1.2rem/1 var(--mono);color:var(--lime)}

/* ---------- 05 find me ---------- */
.sec--find{padding-bottom:max(48px,calc(32px + env(safe-area-inset-bottom)))}
.status{display:flex;align-items:baseline;gap:.12em;margin:.2rem 0 0;font-size:clamp(5.6rem,34vw,17rem);font-weight:700;line-height:.82;letter-spacing:-.06em}
.status__code{background:linear-gradient(172deg,#fff 8%,#c9ced8 30%,#5b6270 52%,#e7eaf0 66%,#7f8796 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.status__ok{-webkit-text-stroke:2px var(--lime);-webkit-text-fill-color:transparent;color:transparent;font-size:.62em}
.links{margin-top:clamp(28px,5vw,48px);border-top:1px solid var(--line)}
.links a{display:grid;grid-template-columns:1fr auto;grid-template-areas:"a c" "b c";align-items:center;gap:.1rem 1rem;min-height:76px;padding:1rem 0;border-bottom:1px solid var(--line);text-decoration:none;transition:padding .3s var(--ease),background .3s}
.links span{grid-area:a;font-size:clamp(1.5rem,7vw,2.4rem);font-weight:600;letter-spacing:-.03em;line-height:1.05}
.links em{grid-area:b;font:400 .85rem/1.3 var(--mono);font-style:normal;color:var(--muted);overflow-wrap:anywhere}
.links i{grid-area:c;font:500 1.6rem/1 var(--mono);font-style:normal;color:var(--lime);transition:transform .3s var(--ease)}
.links a:hover{padding-left:.8rem;background:rgba(198,255,61,.05)}
.links a:hover i{transform:translate(4px,-4px)}
.more{margin-top:1.6rem;font-size:.9rem;color:var(--muted)}
.more a{color:var(--chalk);text-underline-offset:4px;text-decoration-color:var(--line);display:inline-block;padding:.5rem 0}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem 1.5rem;margin-top:clamp(56px,10vw,96px);padding-top:1.2rem;border-top:1px solid var(--line);font:400 .78rem/1.5 var(--mono);color:var(--muted)}
.foot code{font:inherit}
.foot__r{color:var(--lime)}

/* ---------- larger screens ---------- */
@media (min-width:600px){
  .uni__core-s{display:block}
  .node{width:64px;height:64px}
  .caps{grid-template-columns:1fr 1fr;column-gap:3rem}
  .caps li:nth-last-child(2){border-bottom:1px solid var(--line)}
  .plate{width:104px;height:104px}
}
@media (min-width:900px){
  .hero__inner{padding-top:clamp(96px,16svh,180px)}
  .hero__inner>*{max-width:62%}
  .name{font-size:clamp(6rem,13.5vw,12.5rem)}
  .scroll-cue{display:block;position:absolute;right:var(--pad);bottom:calc(32px + env(safe-area-inset-bottom));width:1px;height:90px;background:var(--line);overflow:hidden}
  .scroll-cue span{position:absolute;left:0;top:-40%;width:1px;height:40%;background:var(--lime);animation:cue 2.2s var(--ease) infinite}
  @keyframes cue{to{top:100%}}
  .uni{grid-template-columns:minmax(0,460px) 1fr;gap:clamp(40px,6vw,96px);align-items:center}
  .uni__map{margin:0 0 2rem}
  .uni__panel{padding-top:0}
  .stage{display:grid;grid-template-columns:3rem minmax(0,1.1fr) minmax(0,1.3fr) minmax(0,1fr);gap:1.5rem;align-items:baseline;padding:0 0 2.4rem 60px}
  .stage__no{grid-column:1}
  .stage h3{margin:0}
  .stage p{margin:0}
  .stage .tags{align-self:baseline}
  .trace{padding-left:60px}
  .links a{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;grid-template-areas:"a b c"}
  .links em{text-align:right}
  .repos{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}
  .repos li+li{margin-top:0}
  .repos a{height:100%;align-content:start}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .name__row span{transform:none}
  .js .rv{opacity:1;transform:none}
  .uni__lines line{stroke-dasharray:none}
}

/* trace clues (added by JS) */
.stage__clue{display:block;margin-top:.7rem;font:500 .85rem/1.45 var(--mono);color:var(--lime)}
.stage__clue::before{content:"↳ "}
.stage__clue[hidden]{display:none}
@media (min-width:900px){.stage__clue{grid-column:2/-1;margin-top:0}}