/* ════════════════════════════════════════════════
   TOKENS
   ════════════════════════════════════════════════ */
:root{
  --bg:#FAFBFD;
  --ink:#16161A;
  --ink-2:#6E6E73;
  --ink-3:#A8A8B0;
  --accent:#0A66FF;
  --accent-soft:rgba(10,102,255,.08);
  --accent-mid:rgba(10,102,255,.25);
  --violet:#7C6CFF;
  --teal:#16B8A6;
  --amber:#F59E0B;
  --glass:rgba(255,255,255,.6);
  --glass-strong:rgba(255,255,255,.82);
  --line:rgba(22,22,26,.08);
  --shadow-sm:0 1px 2px rgba(16,24,40,.05),0 1px 3px rgba(16,24,40,.06);
  --shadow-md:0 12px 36px -10px rgba(16,24,40,.14),0 2px 6px rgba(16,24,40,.05);
  --font:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --mono:'SF Mono','JetBrains Mono',ui-monospace,Menlo,monospace;
  --max:1060px;
}
@supports (font-variation-settings:normal){
  :root{--font:'Inter var',-apple-system,sans-serif;}
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  font-feature-settings:'cv05','cv11','ss01';
  overflow-x:hidden;
  line-height:1.6;
}
::selection{background:var(--accent-mid);}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px;}
.micro{
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-3);font-weight:500;
}
.micro .tick{color:var(--accent);}

/* hide native cursor on fine pointers (custom cursor takes over) */
@media (pointer:fine){
  body.cursor-on, body.cursor-on a, body.cursor-on button{cursor:none;}
}

/* ════════════════════════════════════════════════
   BOOT SEQUENCE
   ════════════════════════════════════════════════ */
#boot{
  position:fixed;inset:0;z-index:1000;
  background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .6s ease, visibility .6s;
}
#boot.done{opacity:0;visibility:hidden;}
.boot-inner{font-family:var(--mono);font-size:12.5px;color:var(--ink-2);line-height:2.1;min-width:280px;}
.boot-line{opacity:0;transform:translateY(4px);transition:opacity .25s,transform .25s;}
.boot-line.in{opacity:1;transform:none;}
.boot-line .ok{color:var(--teal);font-weight:600;}
.boot-line .accent{color:var(--accent);font-weight:600;}
.boot-bar{
  margin-top:14px;height:2px;width:100%;
  background:var(--line);border-radius:2px;overflow:hidden;
  opacity:0;transition:opacity .25s;
}
.boot-bar.in{opacity:1;}
.boot-bar i{
  display:block;height:100%;width:0%;
  background:var(--accent);border-radius:2px;
  transition:width 1s cubic-bezier(.3,0,.2,1);
}

/* ════════════════════════════════════════════════
   FIXED LAYERS — canvas, HUD, progress
   ════════════════════════════════════════════════ */
#field{position:fixed;inset:0;z-index:0;pointer-events:none;}
.vignette{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(to bottom,rgba(250,251,253,.4),transparent 18%,transparent 82%,rgba(250,251,253,.5));
}
#progress{
  position:fixed;top:0;left:0;height:2px;width:0%;
  background:linear-gradient(90deg,var(--accent),var(--violet));
  z-index:200;
}

/* training HUD */
#hud{
  position:fixed;right:24px;bottom:24px;z-index:95;
  font-family:var(--mono);font-size:11px;line-height:1.9;
  color:var(--ink-2);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(1.5);
  -webkit-backdrop-filter:blur(16px) saturate(1.5);
  border:1px solid rgba(255,255,255,.75);
  box-shadow:var(--shadow-sm),inset 0 1px 0 rgba(255,255,255,.85);
  border-radius:14px;
  padding:13px 16px;
  min-width:178px;
  transition:opacity .4s;
}
#hud .row{display:flex;justify-content:space-between;gap:18px;}
#hud .k{color:var(--ink-3);letter-spacing:.08em;text-transform:uppercase;font-size:10px;}
#hud .v{color:var(--ink);font-weight:600;}
#hud .v.stage{color:var(--accent);}
#hud .lossbar{
  margin-top:8px;height:3px;border-radius:3px;background:var(--line);overflow:hidden;
}
#hud .lossbar i{display:block;height:100%;background:var(--accent);border-radius:3px;width:0%;}
@media(max-width:700px){ #hud{display:none;} }

/* ════════════════════════════════════════════════
   CUSTOM CURSOR — annotation crosshair
   ════════════════════════════════════════════════ */
#cursor{
  position:fixed;top:0;left:0;z-index:999;pointer-events:none;
  width:8px;height:8px;border-radius:50%;
  background:var(--ink);
  transform:translate(-50%,-50%);
  transition:width .25s,height .25s,background .25s,border-radius .25s,opacity .3s;
  opacity:0;
}
#cursor.live{opacity:1;}
#cursor .bracket{
  position:absolute;width:7px;height:7px;
  border:1.5px solid var(--accent);
  opacity:0;transition:opacity .2s,transform .25s cubic-bezier(.3,1.4,.5,1);
}
#cursor .b-tl{top:-12px;left:-12px;border-right:none;border-bottom:none;transform:translate(4px,4px);}
#cursor .b-tr{top:-12px;right:-12px;border-left:none;border-bottom:none;transform:translate(-4px,4px);}
#cursor .b-bl{bottom:-12px;left:-12px;border-right:none;border-top:none;transform:translate(4px,-4px);}
#cursor .b-br{bottom:-12px;right:-12px;border-left:none;border-top:none;transform:translate(-4px,-4px);}
#cursor.scan{background:var(--accent);width:5px;height:5px;}
#cursor.scan .bracket{opacity:1;transform:translate(0,0);}
#cursor.link{width:38px;height:38px;background:rgba(10,102,255,.12);}
@media(pointer:coarse){ #cursor{display:none;} }

/* ════════════════════════════════════════════════
   NAV
   ════════════════════════════════════════════════ */
nav{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  z-index:100;display:flex;align-items:center;gap:4px;
  padding:8px 8px 8px 18px;
  background:var(--glass);
  backdrop-filter:blur(20px) saturate(1.6);
  -webkit-backdrop-filter:blur(20px) saturate(1.6);
  border:1px solid rgba(255,255,255,.7);
  box-shadow:var(--shadow-sm),inset 0 1px 0 rgba(255,255,255,.8);
  border-radius:100px;
  transition:box-shadow .3s;
}
nav.scrolled{box-shadow:var(--shadow-md),inset 0 1px 0 rgba(255,255,255,.8);}
.nav-logo{font-weight:700;font-size:14px;letter-spacing:-.01em;margin-right:14px;display:flex;align-items:center;gap:8px;}
.nav-logo .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);animation:pulse 3s ease-in-out infinite;}
@keyframes pulse{50%{box-shadow:0 0 0 6px rgba(10,102,255,.04);}}
.nav-link{font-size:13.5px;font-weight:500;color:var(--ink-2);padding:8px 13px;border-radius:100px;transition:color .2s,background .2s;}
.nav-link:hover{color:var(--ink);background:rgba(22,22,26,.05);}
.nav-cta{font-size:13.5px;font-weight:600;color:#fff;background:var(--ink);padding:8px 16px;border-radius:100px;margin-left:6px;transition:transform .2s,background .2s;}
.nav-cta:hover{background:#000;}
.annot-toggle{
  display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;margin-left:4px;border:none;border-radius:100px;
  background:transparent;cursor:pointer;color:var(--ink-3);
  transition:color .2s,background .2s;
}
.annot-toggle:hover{background:rgba(22,22,26,.05);color:var(--ink);}
.annot-toggle.on{color:var(--accent);background:var(--accent-soft);}
.annot-toggle svg{width:16px;height:16px;}
@media(max-width:880px){.nav-link{display:none;}}

/* ════════════════════════════════════════════════
   CONTENT — scenes
   ════════════════════════════════════════════════ */
main{position:relative;z-index:2;}
.scene{min-height:100svh;display:flex;align-items:center;padding:120px 0;}
.scene-inner{width:100%;}

/* story headline treatment: masked line reveal */
.story{
  font-size:clamp(38px,6.4vw,76px);
  font-weight:740;letter-spacing:-.035em;line-height:1.05;
}
.story .ln{display:block;overflow:hidden;}
.story .ln span{display:block;transform:translateY(110%);transition:transform .9s cubic-bezier(.2,.7,.2,1);}
.revealed .story .ln span{transform:none;}
.story .ln:nth-child(2) span{transition-delay:.08s;}
.story .ln:nth-child(3) span{transition-delay:.16s;}
.story .grad{
  background:linear-gradient(100deg,var(--accent) 10%,var(--violet) 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.story .dim{color:var(--ink-3);}

.scene-eyebrow{display:flex;align-items:center;gap:12px;margin-bottom:26px;}
.scene-eyebrow .pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 14px;background:var(--glass-strong);
  border:1px solid var(--line);border-radius:100px;
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.scene-sub{
  margin-top:24px;font-size:clamp(16px,1.9vw,18.5px);
  color:var(--ink-2);max-width:52ch;line-height:1.7;
}
.scene-sub strong{color:var(--ink);font-weight:600;}

/* hero specifics */
#s-noise .hero-ctas{display:flex;gap:12px;margin-top:38px;flex-wrap:wrap;}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 3px rgba(22,184,166,.15);}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;padding:13px 24px;border-radius:100px;
  transition:transform .25s cubic-bezier(.3,1.4,.5,1),box-shadow .25s;
  cursor:pointer;border:none;will-change:transform;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 24px -6px rgba(10,102,255,.45);}
.btn-primary:hover{box-shadow:0 14px 32px -6px rgba(10,102,255,.5);}
.btn-ghost{background:var(--glass-strong);color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow-sm);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);}
.btn svg{width:15px;height:15px;}
.scroll-hint{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--ink-3);
  animation:drift 2.6s ease-in-out infinite;
}
@keyframes drift{50%{transform:translate(-50%,6px);}}

/* ════════════════════════════════════════════════
   CARDS (shared glass)
   ════════════════════════════════════════════════ */
.glass-card{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.75);
  border-radius:24px;
  box-shadow:var(--shadow-sm),inset 0 1px 0 rgba(255,255,255,.85);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .35s cubic-bezier(.2,.9,.3,1),box-shadow .35s;
}
.glass-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md),inset 0 1px 0 rgba(255,255,255,.85);}

.chip{
  font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.04em;
  color:var(--accent);background:var(--accent-soft);
  border:1px solid var(--accent-mid);
  padding:4px 10px;border-radius:6px;
}
.chip.alt{color:var(--ink-2);background:rgba(22,22,26,.04);border-color:var(--line);}

/* experience */
.xp{display:flex;flex-direction:column;gap:18px;margin-top:54px;}
.xp-card{display:grid;grid-template-columns:150px 1fr;gap:28px;padding:30px 32px;}
.xp-when{padding-top:3px;}
.xp-when .micro{line-height:1.8;}
.xp-role{font-size:18px;font-weight:650;letter-spacing:-.015em;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.xp-org{color:var(--accent);font-weight:600;font-size:15px;}
.xp-body{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:64ch;}
.xp-tags{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap;}

/* projects */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:54px;}
.proj{position:relative;display:flex;flex-direction:column;padding:30px;overflow:hidden;}
.proj::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(420px 220px at var(--mx,50%) var(--my,0%),var(--accent-soft),transparent 70%);
  opacity:0;transition:opacity .4s;pointer-events:none;
}
.proj:hover::before{opacity:1;}
.proj.wide{grid-column:span 2;}
.proj-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;}
.proj-icon{width:46px;height:46px;display:flex;align-items:center;justify-content:center;font-size:21px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);}
.proj-link{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.04em;
  color:var(--ink-3);padding:7px 12px;border:1px solid var(--line);border-radius:100px;
  background:rgba(255,255,255,.6);
  transition:color .2s,border-color .2s,transform .2s;
}
.proj-link:hover{color:var(--accent);border-color:var(--accent-mid);transform:translateY(-1px);}
.proj-link svg{width:11px;height:11px;}
.proj h3{margin-top:20px;font-size:19px;font-weight:650;letter-spacing:-.015em;}
.metric{font-family:var(--mono);font-size:12px;color:var(--accent);font-weight:600;margin-top:6px;letter-spacing:.02em;}
.proj p{margin-top:10px;font-size:14.5px;color:var(--ink-2);flex:1;}
.proj-tags{display:flex;gap:7px;margin-top:18px;flex-wrap:wrap;}

/* training-run header strip on the flagship project */
.run-strip{
  display:flex;align-items:center;gap:14px;
  font-family:var(--mono);font-size:10.5px;color:var(--ink-3);
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  letter-spacing:.04em;flex-wrap:wrap;
}
.run-strip b{color:var(--teal);font-weight:600;}

/* model card */
.model-card{overflow:hidden;margin-top:54px;}
.model-card:hover{transform:none;}
.mc-head{display:flex;align-items:center;justify-content:space-between;padding:20px 30px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.45);}
.mc-head .name{font-weight:650;font-size:15px;display:flex;align-items:center;gap:10px;}
.mc-rows{padding:10px 30px 26px;}
.mc-row{display:grid;grid-template-columns:190px 1fr;gap:24px;padding:17px 0;border-bottom:1px solid var(--line);font-size:15px;}
.mc-row:last-child{border-bottom:none;}
.mc-key{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);padding-top:3px;font-weight:500;}
.mc-val .soft{color:var(--ink-2);}
.mc-val .chips{display:flex;gap:7px;flex-wrap:wrap;}
.loss-wrap{display:flex;align-items:center;gap:14px;}
.loss-path{fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-dasharray:240;stroke-dashoffset:240;}
.revealed .loss-path{transition:stroke-dashoffset 1.8s cubic-bezier(.4,0,.2,1) .3s;stroke-dashoffset:0;}
.loss-dot{fill:var(--accent);opacity:0;}
.revealed .loss-dot{transition:opacity .4s ease 2s;opacity:1;}

/* contact */
#s-inference{text-align:center;}
#s-inference .hero-ctas{display:flex;gap:12px;justify-content:center;margin-top:36px;flex-wrap:wrap;}
.socials{display:flex;gap:10px;justify-content:center;margin-top:30px;}
.soc{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;
  background:var(--glass-strong);border:1px solid var(--line);
  box-shadow:var(--shadow-sm);color:var(--ink-2);
  transition:transform .25s cubic-bezier(.3,1.4,.5,1),color .2s,box-shadow .25s;will-change:transform;
}
.soc:hover{color:var(--accent);box-shadow:var(--shadow-md);}
.soc svg{width:18px;height:18px;}
footer{position:relative;z-index:2;border-top:1px solid var(--line);padding:30px 0 40px;background:var(--bg);}
.foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}

/* ════════════════════════════════════════════════
   ANNOTATION OVERLAY
   ════════════════════════════════════════════════ */
#annot-layer{position:fixed;inset:0;pointer-events:none;z-index:90;}
.bbox{
  position:fixed;border:1.5px solid var(--accent);border-radius:6px;
  box-shadow:0 0 0 4px rgba(10,102,255,.06);
  opacity:0;transition:opacity .18s ease;pointer-events:none;
}
.bbox.show{opacity:1;}
.bbox .handle{position:absolute;width:7px;height:7px;background:#fff;border:1.5px solid var(--accent);border-radius:2px;}
.bbox .h-tl{top:-4.5px;left:-4.5px;}.bbox .h-tr{top:-4.5px;right:-4.5px;}
.bbox .h-bl{bottom:-4.5px;left:-4.5px;}.bbox .h-br{bottom:-4.5px;right:-4.5px;}
.bbox .tag{
  position:absolute;top:-26px;left:-1.5px;display:flex;align-items:center;gap:6px;
  font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.03em;
  color:#fff;background:var(--accent);padding:3px 8px;border-radius:5px 5px 5px 0;white-space:nowrap;
}
.bbox .tag .conf{opacity:.75;font-weight:500;}
.bbox.alt2{border-color:var(--violet);}.bbox.alt2 .tag{background:var(--violet);}.bbox.alt2 .handle{border-color:var(--violet);}
.bbox.alt3{border-color:var(--teal);}.bbox.alt3 .tag{background:var(--teal);}.bbox.alt3 .handle{border-color:var(--teal);}

/* reveals */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.3,1);}
.reveal.revealed{opacity:1;transform:none;}
.d1{transition-delay:.07s;}.d2{transition-delay:.14s;}.d3{transition-delay:.21s;}.d4{transition-delay:.28s;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal,.story .ln span{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
  #boot{display:none;}
}
@media(max-width:880px){
  .grid{grid-template-columns:1fr;}
  .proj.wide{grid-column:span 1;}
  .xp-card{grid-template-columns:1fr;gap:10px;padding:26px;}
  .mc-row{grid-template-columns:1fr;gap:8px;padding:15px 0;}
  .scene{padding:90px 0;}
}