/* AI3 Discovery — design system
   dark scientific minimalism · large type · restrained motion */

:root{
  --bg:#07080B;
  --bg-2:#0B0D12;
  --panel:#0E1116;
  --panel-2:#12151C;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.055);
  --ink:#F3F5F8;
  --ink-2:#B6BDCA;
  --muted:#8C94A4;
  --faint:#646C7C;
  --mint:#5EE6C5;
  --indigo:#7C8CFF;
  --amber:#E8B65A;
  --focus:#5EE6C5;

  --ink-max:#FFFFFF;
  --btn-bg:#FFFFFF;
  --btn-fg:#07080B;
  --hover:rgba(255,255,255,.055);
  --hover-soft:rgba(255,255,255,.017);
  --tint:rgba(255,255,255,.015);
  --ring:rgba(255,255,255,.14);
  --ghost-bd:rgba(255,255,255,.35);
  --ghost-bg:rgba(255,255,255,.04);
  --code-bg:rgba(255,255,255,.07);
  --th-bg:rgba(255,255,255,.028);
  --hdr-bg:rgba(7,8,11,.72);
  --hdr-bg-2:rgba(7,8,11,.88);
  --scrim:rgba(7,8,11,.72);
  --scrim-a:rgba(11,13,18,.45);
  --scrim-b:rgba(11,13,18,.55);
  --serif-ink:#DEE3EB;
  --code-ink:#E7EDF5;
  --pre-ink:#C9D3E0;
  --danger:#FF8080;
  --danger-ink:#FF9E9E;
  --accent-rgb:94,230,197;
  --glyph-op:.42;
  --glyph-op-h:.62;
  --canvas-op:1;

  --maxw:1240px;
  --sec-y:clamp(60px,7.6vw,112px);
  --gut:clamp(20px,4vw,56px);

  --f-sans:'Inter Tight','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --f-display:'Inter Tight','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --f-serif:'Newsreader','Iowan Old Style','Source Serif Pro',Georgia,serif;
  --f-mono:'IBM Plex Mono','SF Mono',ui-monospace,Menlo,monospace;
  --display-track:-.042em;
  --display-weight:500;
  --display-lh:1.0;

  --step--1:clamp(.82rem,.8rem + .1vw,.88rem);
  --step-0:clamp(1rem,.97rem + .15vw,1.06rem);
  --step-1:clamp(1.18rem,1.1rem + .4vw,1.4rem);
  --step-2:clamp(1.5rem,1.3rem + .9vw,2.1rem);
  --step-3:clamp(2rem,1.6rem + 1.8vw,3.1rem);
  --step-4:clamp(2.6rem,1.9rem + 3.4vw,4.8rem);
  --step-5:clamp(3.1rem,2rem + 5.4vw,7rem);
}

:root[data-theme="light"]{
  --bg:#FAFAF8;
  --bg-2:#F2F2EE;
  --panel:#FFFFFF;
  --panel-2:#F7F7F4;
  --line:rgba(12,16,22,.15);
  --line-2:rgba(12,16,22,.095);
  --ink:#12161C;
  --ink-2:#3B424D;
  --muted:#59616D;
  --faint:#7A8390;
  --mint:#0B8E73;
  --indigo:#4453CE;
  --amber:#9A6A0C;
  --focus:#0B8E73;

  --ink-max:#05070A;
  --btn-bg:#12161C;
  --btn-fg:#FFFFFF;
  --hover:rgba(12,16,22,.055);
  --hover-soft:rgba(12,16,22,.028);
  --tint:rgba(12,16,22,.022);
  --ring:rgba(12,16,22,.16);
  --ghost-bd:rgba(12,16,22,.3);
  --ghost-bg:rgba(12,16,22,.04);
  --code-bg:rgba(12,16,22,.06);
  --th-bg:rgba(12,16,22,.035);
  --hdr-bg:rgba(250,250,248,.76);
  --hdr-bg-2:rgba(250,250,248,.92);
  --scrim:rgba(250,250,248,.7);
  --scrim-a:rgba(242,242,238,.45);
  --scrim-b:rgba(242,242,238,.6);
  --serif-ink:#1F242C;
  --code-ink:#171C23;
  --pre-ink:#2B323C;
  --danger:#C0392B;
  --danger-ink:#A93226;
  --accent-rgb:11,142,115;
  --glyph-op:.5;
  --glyph-op-h:.72;
  --canvas-op:.62;
  --cosmos-op:.55;
  --veil:rgba(250,250,248,.62);
  --veil-soft:rgba(250,250,248,.4);
  --card-a:rgba(255,255,255,.88);
  --card-b:rgba(255,255,255,.6);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;color-scheme:dark}
:root[data-theme="light"]{color-scheme:light}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--f-sans);font-size:var(--step-0);line-height:1.6;
  font-feature-settings:'ss01','cv05';
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
::selection{background:rgba(var(--accent-rgb),.24);color:var(--ink-max)}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:2px}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gut)}
.narrow{max-width:820px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ───────── type ───────── */
h1,h2,h3,h4{font-weight:500;letter-spacing:-.033em;line-height:1.05;margin:0}
/* the large voice of the site */
.display,.h1,.h2,.keymsg p,.post-hero h1,.feature h2,.nf .h2{
  font-family:var(--f-display);font-weight:var(--display-weight);font-optical-sizing:auto;
  letter-spacing:var(--display-track);line-height:var(--display-lh);
}
.display{font-size:var(--step-5);line-height:calc(var(--display-lh) * .98)}
.h1{font-size:var(--step-4);line-height:calc(var(--display-lh) * 1.04)}
.h2{font-size:var(--step-3);line-height:calc(var(--display-lh) * 1.06)}
.h3{font-size:var(--step-2);letter-spacing:-.025em}
.h4{font-size:var(--step-1);letter-spacing:-.02em;line-height:1.25}
p{margin:0 0 1em}
.lead{font-size:var(--step-1);line-height:1.5;color:var(--ink-2);letter-spacing:-.012em}
.sub{color:var(--muted)}
.eyebrow{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.17em;text-transform:uppercase;
  color:var(--faint);margin:0 0 20px;display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--mint);opacity:.8}
.mono{font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--faint)}

/* ───────── header ───────── */
.hdr{
  position:sticky;top:0;z-index:70;
  background:var(--hdr-bg);backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;
}
.hdr.scrolled{border-bottom-color:var(--line-2);background:var(--hdr-bg-2)}
.hdr-in{display:flex;align-items:center;gap:28px;height:68px;max-width:var(--maxw);margin:0 auto;padding-inline:var(--gut)}
.brand{display:flex;align-items:baseline;gap:9px;font-size:16px;letter-spacing:-.03em;font-weight:500;white-space:nowrap}
.brand b{font-weight:600}
.brand .d{color:var(--muted);font-weight:400;margin-left:-3px}
/* The mark: an eclipse. Light leaks round the hidden body (corona), one bead of
   light flashes at the thin end (the diamond ring), and in the header the
   crescent opens once on load. Everything stops under reduced motion. */
.brand-mark{
  --s:20px;position:relative;width:var(--s);height:var(--s);align-self:center;flex:none;display:block;margin-right:-1px;
  transform:translateY(-1px); /* optical centre on the cap height of AI3 */
}
.brand-mark img{position:relative;z-index:1;width:100%;height:100%;display:block;filter:drop-shadow(0 0 10px rgba(var(--accent-rgb),.28))}
/* the crescent's near-white top vanishes on a light page; deepen it there */
:root[data-theme="light"] .brand-mark img{filter:saturate(1.6) brightness(.82)}
.brand-mark .corona{
  /* a thin band hugging the rim, so the glow does not read as a larger disc */
  position:absolute;inset:-15%;border-radius:50%;z-index:0;pointer-events:none;opacity:.55;
  background:radial-gradient(circle closest-side,transparent 70%,rgba(94,230,197,.38) 77%,rgba(124,140,255,.16) 88%,transparent 100%);
  filter:blur(.6px);transition:filter .5s;
  animation:mk-breathe 7s ease-in-out 1.8s infinite;
}
:root[data-theme="light"] .brand-mark .corona{background:radial-gradient(circle closest-side,transparent 70%,rgba(40,190,160,.26) 77%,rgba(90,105,240,.1) 88%,transparent 100%)}
.brand:hover .brand-mark .corona{filter:blur(.6px) brightness(2.2) saturate(1.3)}
.brand-mark img{transition:filter .5s}
.brand:hover .brand-mark img{filter:drop-shadow(0 0 6px rgba(var(--accent-rgb),.75)) brightness(1.15)}
:root[data-theme="light"] .brand:hover .brand-mark img{filter:saturate(1.8) brightness(.8) drop-shadow(0 0 5px rgba(40,190,160,.6))}
.brand-mark .spark{
  position:absolute;z-index:2;left:79%;top:14%;width:3.2px;height:3.2px;margin:-1.6px;border-radius:50%;opacity:0;pointer-events:none;
  background:radial-gradient(circle,#fff 0 22%,rgba(210,255,245,.9) 32%,rgba(94,230,197,.35) 55%,transparent 72%);
  animation:mk-ring 8s ease-in-out 1.2s infinite;
}
.brand-mark .spark::before,.brand-mark .spark::after{
  content:"";position:absolute;left:50%;top:50%;width:320%;height:9%;min-height:.6px;transform:translate(-50%,-50%);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.85),transparent);border-radius:9px;
}
.brand-mark .spark::after{transform:translate(-50%,-50%) rotate(90deg);width:220%}
:root[data-theme="light"] .brand-mark .spark{background:radial-gradient(circle,#fff 0 20%,rgba(94,230,197,.95) 34%,rgba(40,190,160,.35) 58%,transparent 74%)}
.hdr .brand-mark img{animation:mk-reveal 1.8s cubic-bezier(.2,.7,.2,1) both}
@keyframes mk-breathe{0%,100%{opacity:.25;transform:scale(.94)}50%{opacity:.9;transform:scale(1.06)}}
@keyframes mk-ring{0%,62%,100%{opacity:0;transform:scale(.4)}70%{opacity:1;transform:scale(1.15)}78%{opacity:.85;transform:scale(1)}90%{opacity:0;transform:scale(.6)}}
@keyframes mk-reveal{0%{clip-path:circle(0% at 22% 30%);opacity:0;transform:rotate(-40deg)}100%{clip-path:circle(80% at 22% 30%);opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.brand-mark img,.brand-mark .corona,.brand-mark .spark{animation:none}}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav a{
  font-size:13.5px;color:var(--ink-2);padding:8px 12px;border-radius:7px;
  transition:color .18s,background .18s;letter-spacing:-.006em;white-space:nowrap;
}
.nav a:hover{color:var(--ink-max);background:var(--hover)}
.nav a.on{color:var(--ink-max)}
.nav a.on::after{content:'';display:block;height:1px;background:var(--mint);margin-top:5px;opacity:.9}
.nav-cta{
  margin-left:12px;font-size:13.5px;padding:9px 16px;border-radius:999px;
  border:1px solid var(--line);color:var(--ink-max);transition:.2s;white-space:nowrap;
}
.nav-cta:hover{background:var(--btn-bg);color:var(--btn-fg);border-color:var(--btn-bg)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--ink);
  width:40px;height:40px;border-radius:9px;cursor:pointer;align-items:center;justify-content:center}
.burger span{display:block;width:16px;height:1px;background:currentColor;position:relative}
.burger span::before,.burger span::after{content:'';position:absolute;left:0;width:16px;height:1px;background:currentColor}
.burger span::before{top:-5px}.burger span::after{top:5px}

.mobile{display:none;position:fixed;inset:68px 0 0;background:var(--bg);z-index:60;padding:24px var(--gut);overflow:auto}
.mobile.open{display:block}
.mobile a{display:block;padding:15px 0;border-bottom:1px solid var(--line-2);font-size:20px;letter-spacing:-.02em}
.mobile .nav-cta{display:inline-block;margin:24px 0 0;border-bottom:1px solid var(--line)}

/* ───────── hero ───────── */
.hero{position:relative;padding:clamp(40px,7vh,120px) 0;overflow:hidden;
  min-height:clamp(380px,66vh,700px);min-height:clamp(380px,66svh,700px);display:flex;align-items:center}
/* home: fill the first screen below the sticky header and centre the copy, whatever the window height */
.hero.hero-full{min-height:clamp(460px,calc(100vh - 70px),940px);min-height:clamp(460px,calc(100svh - 70px),940px)}
@media (max-width:760px){.hero.hero-full{min-height:clamp(420px,calc(88svh - 70px),760px)}.hero{min-height:0}}
.hero .display{font-size:min(var(--step-5),12.5vh)}
.hero .h1{font-size:min(var(--step-4),9.5vh)}
.hero > .wrap{width:100%}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;opacity:var(--canvas-op);pointer-events:none;
  -webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 14%,#000 82%,transparent 100%);
  mask-image:linear-gradient(180deg,transparent 0%,#000 14%,#000 82%,transparent 100%)}
.hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 50% 18%,transparent 48%,var(--scrim) 92%);
}
.hero-in{position:relative;z-index:2}
.hero h1{max-width:16ch}
.hero .lead{max-width:62ch;margin-top:clamp(18px,3.2vh,26px)}
.hero .hero-actions{margin-top:clamp(24px,4.4vh,40px)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}

.btn{
  display:inline-flex;align-items:center;gap:10px;padding:13px 24px;border-radius:999px;
  font-size:14.5px;letter-spacing:-.01em;border:1px solid transparent;cursor:pointer;transition:.2s;
  background:transparent;color:var(--ink);font-family:inherit;text-align:center;
}
.btn-primary{background:var(--btn-bg);color:var(--btn-fg)}
.btn-primary:hover{background:var(--mint);color:var(--ink-max);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ghost-bd);background:var(--ghost-bg)}
.btn .arw{transition:transform .2s}
.btn:hover .arw{transform:translateX(3px)}

/* ───────── sections ───────── */
section{position:relative}
/* One rhythm for the whole site: every boundary between two sections is
   1.5 x --sec-y, whatever kinds of section meet there. */
.sec{padding:var(--sec-y) 0}
.sec + .sec{padding-top:calc(var(--sec-y) * .5)}
.hero + .sec,.keymsg + .sec,.band-search + .sec,.ctaband + .sec{padding-top:var(--sec-y)}
.sec-hd{max-width:760px;margin-bottom:calc(var(--sec-y) * .5)}
.sec-hd .lead{margin-top:18px}
.rule{height:1px;background:var(--line-2);border:0;margin:0}

/* search space band */
.band-search{padding:calc(var(--sec-y) * 1.15) 0;border-block:1px solid var(--line-2);background:var(--veil-soft);overflow:hidden;position:relative}
.band-search canvas{position:absolute;inset:0;width:100%;height:100%;opacity:calc(var(--canvas-op) * .9);
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 22%,#000 78%,transparent);
  mask-image:linear-gradient(180deg,transparent,#000 22%,#000 78%,transparent)}
.band-search::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,var(--bg-2) 0%,var(--scrim-a) 26%,var(--scrim-b) 68%,var(--bg-2) 100%)}
.band-search .wrap{position:relative;z-index:2}
.band-search h2{max-width:14ch}
.scale-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin-top:56px;background:none}
.scale-row div{background:var(--veil);padding:26px 22px;box-shadow:0 0 0 1px var(--line-2)}
.scale-row .n{font-family:var(--f-mono);font-size:clamp(1.5rem,2.4vw,2rem);color:var(--ink-max);letter-spacing:-.03em;display:block}
.scale-row .l{font-size:13px;color:var(--muted);margin-top:8px;display:block;line-height:1.45}

/* domain cards */
.domains{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
@media (max-width:1180px){.domains{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:760px){.domains{grid-template-columns:minmax(0,1fr)}}
@media (max-width:980px){.scale-row{grid-template-columns:repeat(2,minmax(0,1fr))}}
.dcard{
  background:var(--veil);padding:clamp(28px,3vw,40px);min-height:300px;
  display:flex;flex-direction:column;position:relative;transition:background .3s;overflow:hidden;
}
.dcard:hover{background:var(--panel)}
.dcard .idx{font-family:var(--f-mono);font-size:11px;color:var(--faint);letter-spacing:.12em}
.dcard h3{margin:20px 0 14px;font-size:var(--step-1)}
.dcard p{color:var(--muted);font-size:14.5px;line-height:1.6;margin:0}
.dcard .go{margin-top:auto;padding-top:28px;font-size:13px;color:var(--mint);display:flex;align-items:center;gap:8px}
.dcard .go .arw{transition:transform .2s}
.dcard:hover .go .arw{transform:translateX(4px)}
.dcard .glyph{
  position:absolute;right:-30px;top:-26px;width:168px;height:168px;opacity:var(--glyph-op);
  transition:opacity .35s,transform .5s;
  -webkit-mask-image:radial-gradient(closest-side,#000 38%,transparent 100%);
  mask-image:radial-gradient(closest-side,#000 38%,transparent 100%);
}
.dcard:hover .glyph{opacity:var(--glyph-op-h);transform:scale(1.06) rotate(-4deg)}

/* engine layers */
.layers{border-top:1px solid var(--line-2)}
.layer{
  display:grid;grid-template-columns:90px minmax(0,1fr) minmax(0,1.15fr);gap:clamp(20px,4vw,56px);
  padding:clamp(28px,3.6vw,46px) 24px;margin-inline:-24px;
  border-bottom:1px solid var(--line-2);align-items:start;
}
.layer .num{font-family:var(--f-mono);font-size:13px;color:var(--mint);letter-spacing:.08em;padding-top:6px}
.layer h3{font-size:var(--step-2)}
.layer .desc{color:var(--ink-2);margin-top:14px;font-size:15.5px;line-height:1.62;max-width:46ch}
.taglist{display:flex;flex-wrap:wrap;gap:8px;padding-top:8px}
.taglist span{
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.02em;color:var(--muted);
  border:1px solid var(--line);border-radius:999px;padding:6px 13px;background:var(--tint);
}

/* loop */
.loop{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:1px;background:none;margin-top:8px}
.loop .step{background:var(--veil);padding:26px 22px 30px;position:relative;box-shadow:0 0 0 1px var(--line-2)}
.loop .step .k{font-family:var(--f-mono);font-size:11px;color:var(--mint);letter-spacing:.1em}
.loop .step h4{margin:14px 0 10px;font-size:1.02rem;letter-spacing:-.02em}
.loop .step p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.55}
.loop-note{margin-top:32px;color:var(--muted);max-width:60ch;font-size:15px}

/* feature rows / bullets */
.bullets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:none}
.bullets .b{background:var(--veil);padding:clamp(24px,2.6vw,34px);box-shadow:0 0 0 1px var(--line-2)}
.bullets .b:last-child:nth-child(3n+1){grid-column:span 3}
.bullets .b:last-child:nth-child(3n+2){grid-column:span 2}
.bullets h4{font-size:1.06rem;margin-bottom:11px;letter-spacing:-.02em}
.bullets p{color:var(--muted);font-size:14.5px;line-height:1.62;margin:0}

.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.cards .card:last-child:nth-child(3n+1){grid-column:span 3}
.cards .card:last-child:nth-child(3n+2){grid-column:span 2}
.card{
  background:linear-gradient(180deg,var(--card-a),var(--card-b));
  border:1px solid var(--line-2);border-radius:14px;padding:clamp(24px,2.6vw,32px);transition:.28s;
}
.card:hover{border-color:var(--line);transform:translateY(-2px)}
.card .n{font-family:var(--f-mono);font-size:11.5px;color:var(--mint);letter-spacing:.1em}
.card h4{margin:16px 0 12px;font-size:1.1rem}
.card p{color:var(--muted);font-size:14.5px;line-height:1.62;margin:0}

/* key message */
.keymsg{padding:var(--sec-y) 0;border-block:1px solid var(--line-2);background:
  radial-gradient(70% 150% at 50% 50%,rgba(var(--accent-rgb),.07),transparent 68%),var(--veil-soft)}
.keymsg .wrap::before{content:'';display:block;width:1px;height:34px;margin:0 auto 28px;
  background:linear-gradient(180deg,rgba(var(--accent-rgb),.9),rgba(var(--accent-rgb),0))}
.keymsg p{font-size:clamp(1.7rem,3.3vw,2.8rem);line-height:1.2;max-width:24ch;margin:0 auto;text-align:center;color:var(--ink-max)}

/* vision list */
.vision{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:none}
.vision li{background:var(--veil);padding:22px 24px;box-shadow:0 0 0 1px var(--line-2);list-style:none;font-size:14.5px;color:var(--ink-2);display:flex;gap:12px}
.vision li::before{content:'';flex:none;width:6px;height:6px;border-radius:50%;background:var(--mint);margin-top:8px;opacity:.85}
.vision-wrap{margin:0;padding:0}

/* cta band */
.ctaband{padding:calc(var(--sec-y) * 1.1) 0;border-top:1px solid var(--line-2);position:relative;overflow:hidden;background:var(--veil-soft)}
.ctaband canvas{position:absolute;inset:0;width:100%;height:100%;opacity:calc(var(--canvas-op) * .75)}
.ctaband .wrap{position:relative;z-index:2}
.ctaband h2{max-width:18ch}
.ctaband .lead{margin-top:18px;max-width:54ch}

/* research index */
.r-hero{padding:clamp(72px,9vw,120px) 0 calc(var(--sec-y) * .5)}
.filters{display:flex;flex-wrap:wrap;gap:8px;padding-block:24px;border-bottom:1px solid var(--line-2)}
.filters a{font-size:13px;color:var(--muted);border:1px solid var(--line-2);border-radius:999px;padding:7px 15px;transition:.2s}
.filters a:hover{color:var(--ink-max);border-color:var(--line)}
.filters a.on{background:var(--btn-bg);color:var(--btn-fg);border-color:var(--btn-bg)}

.feature{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,4vw,60px);
  align-items:center;padding:clamp(36px,5vw,64px) 0;border-bottom:1px solid var(--line-2);
}
.feature .thumb{aspect-ratio:16/11;border:1px solid var(--line-2);border-radius:12px;overflow:hidden;background:var(--panel)}
.feature .thumb canvas{width:100%;height:100%;display:block}
.feature h2{font-size:var(--step-3);margin:18px 0 16px}
.feature p{color:var(--ink-2);font-size:16px;max-width:52ch}

.plist{display:grid;gap:0}
.pitem{
  display:grid;grid-template-columns:150px minmax(0,1fr) 210px;gap:clamp(16px,3vw,44px);
  padding:clamp(24px,3vw,36px) clamp(16px,2vw,28px);border-bottom:1px solid var(--line-2);align-items:start;transition:.2s;
}
.pitem:hover{background:var(--hover-soft)}
.pitem .meta{font-family:var(--f-mono);font-size:11.5px;color:var(--faint);letter-spacing:.06em;padding-top:5px;line-height:1.8}
.pitem .meta .cat{color:var(--mint)}
.pitem .meta>span{display:block;white-space:nowrap}
.pitem h3{font-size:var(--step-1);letter-spacing:-.028em}
.pitem p{color:var(--muted);font-size:14.5px;margin:12px 0 0;max-width:62ch;line-height:1.6}
.pitem .thumb{aspect-ratio:16/10;border:1px solid var(--line-2);border-radius:9px;overflow:hidden;background:var(--panel)}
.pitem .thumb canvas{width:100%;height:100%;display:block}
.tag-draft{font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;color:var(--amber);border:1px solid currentColor;padding:2px 7px;border-radius:4px;margin-left:10px;vertical-align:middle}

.empty{padding:calc(var(--sec-y) * .55) 0 calc(var(--sec-y) * .4);max-width:52ch}
.empty .mono{font-size:11px;letter-spacing:.17em;text-transform:uppercase;color:var(--mint);margin-bottom:18px}
.empty p{color:var(--ink-2);font-size:var(--step-1);line-height:1.5;letter-spacing:-.012em;margin-bottom:28px}

/* post */
.post-hero{padding:clamp(56px,7vw,104px) 0 clamp(28px,3.4vw,44px);border-bottom:1px solid var(--line-2)}
.post-hero h1{max-width:22ch;font-size:var(--step-4);line-height:1.06}
.post-hero .lead{max-width:64ch;margin-top:22px}
.post-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:34px;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.07em;color:var(--faint);text-transform:uppercase}
.post-meta .cat{color:var(--mint)}
.post-figure{height:clamp(220px,30vw,400px);border-bottom:1px solid var(--line-2);position:relative;overflow:hidden;background:var(--bg-2)}
.post-figure canvas{position:absolute;inset:0;width:100%;height:100%}
.post-figure.has-img{height:clamp(240px,38vw,560px);background:#07080B}
.post-figure img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 50%;display:block}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}

.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:clamp(30px,5vw,72px);padding:clamp(40px,5vw,72px) 0}
.toc{position:sticky;top:96px;align-self:start;border-left:1px solid var(--line-2);padding-left:20px}
.toc .t{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:14px}
.toc a{display:block;font-size:13.2px;color:var(--muted);padding:6px 0;line-height:1.45;transition:color .2s}
.toc a:hover,.toc a.on{color:var(--ink-max)}
.toc a.lvl3{padding-left:14px;font-size:12.6px}

.post-body{font-family:var(--f-serif);font-size:19px;line-height:1.75;color:var(--serif-ink);max-width:70ch}
.post-body p{margin:0 0 1.35em}
.post-body h2{font-family:var(--f-display);font-weight:var(--display-weight);font-size:clamp(1.55rem,2.5vw,2rem);margin:2.2em 0 .7em;letter-spacing:-.028em;line-height:1.12;color:var(--ink-max)}
.post-body h3{font-family:var(--f-sans);font-size:clamp(1.16rem,1.7vw,1.32rem);margin:1.9em 0 .6em;letter-spacing:-.022em;color:var(--ink-max)}
.post-body a{color:var(--mint);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:rgba(var(--accent-rgb),.45)}
.post-body a:hover{text-decoration-color:var(--mint)}
.post-body ul,.post-body ol{padding-left:1.25em;margin:0 0 1.35em}
.post-body li{margin-bottom:.55em}
.post-body blockquote{margin:1.8em 0;padding:4px 0 4px 22px;border-left:2px solid var(--mint);color:var(--ink-max);font-style:normal}
.post-body blockquote p{margin:0;font-size:1.06em;line-height:1.6}
.post-body code{font-family:var(--f-mono);font-size:.82em;background:var(--code-bg);padding:2px 6px;border-radius:5px;color:var(--code-ink)}
.post-body pre{background:var(--panel);border:1px solid var(--line-2);border-radius:11px;padding:20px;overflow:auto;margin:1.8em 0}
.post-body pre code{background:none;padding:0;font-size:13px;line-height:1.65;color:var(--pre-ink)}
.post-body hr{border:0;border-top:1px solid var(--line-2);margin:2.6em 0}
.post-body img{border-radius:10px;border:1px solid var(--line-2);margin:1.6em 0}
.post-body figure{margin:1.8em 0}
.tablewrap{overflow-x:auto;margin:1.8em 0;border:1px solid var(--line-2);border-radius:11px}
.post-body table{border-collapse:collapse;width:100%;font-family:var(--f-sans);font-size:14.5px}
.post-body th,.post-body td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line-2);vertical-align:top}
.post-body th{font-weight:500;color:var(--ink-max);background:var(--th-bg);font-size:12.5px;letter-spacing:.02em;text-transform:uppercase;font-family:var(--f-mono)}
.post-body tbody tr:last-child td{border-bottom:0}
.post-after{border-top:1px solid var(--line-2);padding:clamp(40px,5vw,72px) 0}

/* footer */
.ftr{border-top:1px solid var(--line-2);padding:clamp(52px,6vw,84px) 0 40px;background:var(--veil);position:relative;overflow:hidden}
.ftr .wrap{position:relative;z-index:1}
.ftr-grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,48px)}
.ftr h5{font-family:var(--f-mono);font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;color:var(--faint);margin:0 0 18px;font-weight:400}
.ftr a{display:block;font-size:14px;color:var(--ink-2);padding:6px 0;transition:color .18s}
.ftr .brand{display:flex;font-size:16px;color:var(--ink);padding:0}
.ftr .brand:hover{color:var(--ink)}
.ftr a:hover{color:var(--ink-max)}
.ftr .tag{color:var(--muted);font-size:14px;max-width:34ch;margin-top:16px;line-height:1.6}
.ftr-btm{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  margin-top:clamp(40px,5vw,64px);padding-top:26px;border-top:1px solid var(--line-2);
  font-size:12.5px;color:var(--faint);font-family:var(--f-mono);letter-spacing:.04em}

/* contact */
.contactbox{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:none}
.contactbox div{background:var(--veil);padding:30px;box-shadow:0 0 0 1px var(--line-2)}
.contactbox .k{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:12px}
.contactbox a{font-size:1.1rem;color:var(--ink-max);border-bottom:1px solid rgba(var(--accent-rgb),.5);padding-bottom:2px}
.contactbox a:hover{border-color:var(--mint);color:var(--mint)}

/* admin */
.adm{max-width:1120px;margin:0 auto;padding:40px var(--gut) 80px}
.adm-top{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:32px}
.adm-top h1{font-size:1.7rem;margin-right:auto}
.adm input[type=text],.adm input[type=password],.adm input[type=date],.adm select,.adm textarea{
  width:100%;background:var(--panel);border:1px solid var(--line);border-radius:9px;color:var(--ink);
  padding:11px 14px;font-family:inherit;font-size:14.5px;transition:border-color .2s;
}
.adm textarea{font-family:var(--f-mono);font-size:13.4px;line-height:1.7;min-height:62vh;resize:vertical}
.adm input:focus,.adm textarea:focus,.adm select:focus{outline:none;border-color:var(--mint)}
.adm label{display:block;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--faint);margin:0 0 8px}
.field{margin-bottom:18px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.editor-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}
.side{background:var(--panel);border:1px solid var(--line-2);border-radius:13px;padding:22px;position:sticky;top:90px}
.rows{border:1px solid var(--line-2);border-radius:12px;overflow:hidden}
.row{display:grid;grid-template-columns:minmax(0,1fr) 130px 120px 190px;gap:14px;align-items:center;
  padding:15px 18px;border-bottom:1px solid var(--line-2);background:var(--panel)}
.row:last-child{border-bottom:0}
.row .t{font-size:15px;letter-spacing:-.015em}
.row .s{font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.s-published{color:var(--mint)}.s-draft{color:var(--amber)}
.row .acts{display:flex;gap:8px;justify-content:flex-end}
.btn-sm{font-size:12.5px;padding:7px 13px;border-radius:7px;border:1px solid var(--line);background:none;color:var(--ink-2);cursor:pointer;transition:.18s;font-family:inherit}
.btn-sm:hover{color:var(--ink-max);border-color:var(--ghost-bd)}
.btn-danger:hover{color:var(--danger);border-color:currentColor}
.flash{background:rgba(var(--accent-rgb),.1);border:1px solid rgba(var(--accent-rgb),.3);color:var(--mint);padding:12px 16px;border-radius:9px;margin-bottom:22px;font-size:14px}
.err{background:rgba(192,57,43,.09);border:1px solid rgba(192,57,43,.3);color:var(--danger-ink);padding:12px 16px;border-radius:9px;margin-bottom:22px;font-size:14px}
.login{max-width:380px;margin:14vh auto;padding:0 var(--gut)}
.login .brand{margin-bottom:28px}
.preview{border:1px solid var(--line-2);border-radius:12px;padding:26px;background:var(--bg-2);max-height:62vh;overflow:auto}
.hint{font-size:12px;color:var(--faint);margin-top:8px;line-height:1.5}
.toolbar{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}

/* 404 */
.nf{padding:18vh 0 20vh;text-align:center}
.nf .display{font-size:var(--step-3)}

@media (max-width:1020px){
  .nav{display:none}.burger{display:flex}
  .post-layout{grid-template-columns:minmax(0,1fr)}
  .toc{display:none}
  .editor-layout{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .feature{grid-template-columns:minmax(0,1fr)}
  .feature .thumb{order:-1}
}
@media (max-width:1180px){
  .bullets,.cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bullets .b:last-child:nth-child(3n+1),.bullets .b:last-child:nth-child(3n+2),
  .cards .card:last-child:nth-child(3n+1),.cards .card:last-child:nth-child(3n+2){grid-column:auto}
  .bullets .b:last-child:nth-child(2n+1),.cards .card:last-child:nth-child(2n+1){grid-column:span 2}
  .loop{grid-template-columns:repeat(3,minmax(0,1fr))}
  .contactbox{grid-template-columns:repeat(3,minmax(0,1fr))}
  .vision{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  .layer{padding-inline:14px;margin-inline:-14px}
  .bullets,.cards,.loop,.scale-row,.contactbox,.vision{grid-template-columns:minmax(0,1fr)}
  .bullets .b:last-child,.cards .card:last-child{grid-column:auto}
  .layer{grid-template-columns:minmax(0,1fr);gap:16px}
  .layer .num{padding-top:0}
  .pitem{grid-template-columns:minmax(0,1fr);gap:14px}
  .pitem .thumb{display:none}
  .pitem .meta{display:flex;gap:14px;padding-top:0}
  .pitem .meta>span{display:inline}
  .ftr-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .row{grid-template-columns:minmax(0,1fr);gap:8px}
  .row .acts{justify-content:flex-start}
  .post-body{font-size:17.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* reveal */
.rv{opacity:0;transform:translateY(14px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}}

/* ═══════════ atmosphere ═══════════════════════════════════════════ */
.cosmos{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;
  opacity:var(--cosmos-op,1);transition:opacity .6s}
.aurora{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;contain:strict}
.aurora span{
  position:absolute;display:block;border-radius:50%;filter:blur(90px);opacity:.4;
  background:radial-gradient(circle at 50% 50%,rgba(var(--accent-rgb),.5),transparent 68%);
  animation:drift 46s ease-in-out infinite;will-change:transform;
}
.aurora span:nth-child(1){width:62vw;height:62vw;left:-16vw;top:-14vw}
.aurora span:nth-child(2){width:48vw;height:48vw;right:-12vw;top:22vh;animation-delay:-16s;
  background:radial-gradient(circle at 50% 50%,rgba(124,140,255,.4),transparent 68%)}
.aurora span:nth-child(3){width:54vw;height:54vw;left:24vw;bottom:-22vw;animation-delay:-31s;opacity:.26}
:root[data-theme="light"] .aurora span{opacity:.3;filter:blur(110px)}
@keyframes drift{
  0%,100%{transform:translate3d(0,0,0) scale(1)}
  33%{transform:translate3d(6vw,-4vh,0) scale(1.12)}
  66%{transform:translate3d(-5vw,5vh,0) scale(.94)}
}
main,footer,.adm,.login{position:relative;z-index:1}

/* thin reading progress on long pages */
.scrollbar-progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:90;pointer-events:none;
  background:linear-gradient(90deg,rgba(var(--accent-rgb),0),var(--mint));
  box-shadow:0 0 12px rgba(var(--accent-rgb),.5);transition:width .12s linear;
}

/* ═══════════ theme switch ═════════════════════════════════════════ */
.themer{
  margin-left:8px;width:36px;height:36px;flex:none;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-2);border-radius:999px;background:var(--tint);color:var(--ink-2);
  cursor:pointer;transition:color .2s,border-color .2s,background .2s,transform .3s;
}
.themer:hover{color:var(--ink-max);border-color:var(--line);transform:rotate(18deg)}
.themer .t-moon{display:none}
:root[data-theme="light"] .themer .t-sun,
:root[data-theme="light"] .themer .t-rays{display:none}
:root[data-theme="light"] .themer .t-moon{display:block}
.themer svg{transition:transform .5s cubic-bezier(.2,.8,.2,1)}

/* ═══════════ motion ═══════════════════════════════════════════════ */
.rv{opacity:0;transform:translateY(18px);filter:blur(6px);
  transition:opacity .85s cubic-bezier(.2,.7,.25,1),transform .85s cubic-bezier(.2,.7,.25,1),filter .85s ease}
.rv.in{opacity:1;transform:none;filter:none}

/* a hairline that draws itself under every section label */
.eyebrow::before{transform-origin:left center;transform:scaleX(0);transition:transform .8s cubic-bezier(.2,.8,.2,1) .1s}
.rv.in .eyebrow::before,.in > .eyebrow::before,.eyebrow.drawn::before{transform:scaleX(1)}

/* hero headline sheen */
.display{
  background:linear-gradient(100deg,var(--ink) 30%,var(--ink-max) 44%,rgba(var(--accent-rgb),.95) 50%,var(--ink-max) 56%,var(--ink) 70%);
  background-size:280% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;
  animation:sheen 9s ease-in-out 1.2s infinite;
}
@keyframes sheen{0%,62%{background-position:130% 0}100%{background-position:-30% 0}}

/* word-by-word statement */
.keymsg .w{display:inline-block;opacity:0;transform:translateY(14px) rotateX(35deg);
  transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.keymsg.lit .w{opacity:1;transform:none}
.keymsg .wrap::before{transform:scaleY(0);transform-origin:top;transition:transform .9s cubic-bezier(.2,.8,.2,1)}
.keymsg.lit .wrap::before{transform:scaleY(1)}

/* pointer spotlight on cards */
.dcard,.card{--mx:50%;--my:0%}
.dcard::before,.card::before{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .35s;
  background:radial-gradient(420px circle at var(--mx) var(--my),rgba(var(--accent-rgb),.13),transparent 62%);
}
.card{position:relative;overflow:hidden}
.dcard:hover::before,.card:hover::before{opacity:1}

/* engine rows light up */
.layer{position:relative;transition:background .4s}
.layer::after{content:'';position:absolute;left:0;top:0;bottom:0;width:1px;background:var(--mint);
  transform:scaleY(0);transform-origin:top;transition:transform .5s cubic-bezier(.2,.8,.2,1);opacity:.85}
.layer:hover{background:var(--hover-soft)}
.layer:hover::after{transform:scaleY(1)}
.layer:hover .num{color:var(--mint)}
.taglist span{transition:border-color .25s,color .25s,transform .25s}
.layer:hover .taglist span{border-color:var(--line);color:var(--ink-2)}

/* loop steps pulse in sequence */
.loop .step::after{content:'';position:absolute;left:22px;bottom:16px;width:5px;height:5px;border-radius:50%;
  background:var(--mint);opacity:.15;animation:beat 6s ease-in-out infinite}
.loop .step:nth-child(1)::after{animation-delay:0s}
.loop .step:nth-child(2)::after{animation-delay:1s}
.loop .step:nth-child(3)::after{animation-delay:2s}
.loop .step:nth-child(4)::after{animation-delay:3s}
.loop .step:nth-child(5)::after{animation-delay:4s}
.loop .step:nth-child(6)::after{animation-delay:5s}
@keyframes beat{0%,88%,100%{opacity:.14;box-shadow:none}
  8%{opacity:1;box-shadow:0 0 14px 2px rgba(var(--accent-rgb),.55)}
  40%{opacity:.2;box-shadow:none}}

/* scale figures */
.scale-row div{position:relative;overflow:hidden}
.scale-row div::after{content:'';position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--mint),transparent);transform:scaleX(0);transform-origin:left;
  transition:transform 1.1s cubic-bezier(.2,.8,.2,1)}
.scale-row.in div::after{transform:scaleX(1)}
.scale-row .n{font-variant-numeric:tabular-nums}

/* buttons get a travelling edge */
.btn-primary{position:relative;overflow:hidden}
.btn-primary::after{content:'';position:absolute;inset:0;transform:translateX(-120%);
  background:linear-gradient(90deg,transparent,rgba(var(--accent-rgb),.35),transparent);transition:transform .7s}
.btn-primary:hover::after{transform:translateX(120%)}

/* research rows */
.pitem .thumb,.feature .thumb{position:relative;transition:transform .5s cubic-bezier(.2,.8,.2,1),border-color .4s}
.pitem:hover .thumb,.feature:hover .thumb{transform:translateY(-3px) scale(1.012);border-color:var(--line)}
.pitem h3{transition:color .25s}
.pitem:hover h3{color:var(--mint)}

/* first paint */
body{animation:pagein .7s ease both}
@keyframes pagein{from{opacity:0}to{opacity:1}}

@media (prefers-reduced-motion:reduce){
  .aurora span{animation:none}
  .display{animation:none;color:var(--ink);background:none;-webkit-background-clip:border-box;background-clip:border-box}
  .keymsg .w{opacity:1;transform:none}
  .keymsg .wrap::before{transform:scaleY(1)}
  .eyebrow::before{transform:scaleX(1)}
  .loop .step::after{animation:none}
  body{animation:none}
}

/* ═══════════ reasons ══════════════════════════════════════════════ */
.reasons{display:grid;gap:0;border-top:1px solid var(--line-2)}
.reason{display:grid;grid-template-columns:76px minmax(0,1fr);gap:clamp(16px,3vw,40px);
  padding:clamp(24px,3vw,38px) 0;border-bottom:1px solid var(--line-2);align-items:start}
.reason .r-n{font-family:var(--f-mono);font-size:12.5px;letter-spacing:.1em;color:var(--mint);padding-top:7px}
.reason h3{font-size:var(--step-1);letter-spacing:-.025em}
.reason p{color:var(--ink-2);margin:12px 0 0;font-size:15.5px;line-height:1.62;max-width:72ch}
.reason:hover .r-n{color:var(--ink-max)}

/* ═══════════ evidence cases ══════════════════════════════════════ */
.cases{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.case{position:relative;overflow:hidden;border:1px solid var(--line-2);border-radius:14px;
  padding:clamp(24px,2.6vw,32px);background:linear-gradient(180deg,var(--card-a),var(--card-b));
  display:flex;flex-direction:column;transition:border-color .3s,transform .3s}
.case:hover{border-color:var(--line);transform:translateY(-2px)}
.case-stat{display:flex;align-items:baseline;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.case-stat .v{font-size:clamp(1.7rem,2.6vw,2.3rem);letter-spacing:-.04em;color:var(--ink-max);
  font-variant-numeric:tabular-nums;line-height:1}
.case-stat .c{font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--mint)}
.case h3{font-size:1.1rem;letter-spacing:-.02em;margin-bottom:10px}
.case p{color:var(--muted);font-size:14.5px;line-height:1.62;margin:0 0 20px}
.case-src{margin-top:auto;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.05em;color:var(--faint);
  border-top:1px solid var(--line-2);padding-top:14px;transition:color .2s}
a.case-src:hover{color:var(--mint)}
.case .ext{opacity:.7}
.case:last-child:nth-child(2n+1){grid-column:span 2}
.foot-note{margin-top:28px;color:var(--faint);font-size:13.5px;max-width:78ch;line-height:1.6}
@media (max-width:860px){
  .cases{grid-template-columns:minmax(0,1fr)}
  .case:last-child:nth-child(2n+1){grid-column:auto}
  .reason{grid-template-columns:minmax(0,1fr);gap:10px}
  .reason .r-n{padding-top:0}
}

/* language switch */
.langer{
  margin-left:10px;padding:8px 13px;border-radius:999px;border:1px solid var(--line-2);
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.06em;color:var(--ink-2);
  background:var(--tint);transition:.2s;white-space:nowrap;flex:none;
}
.langer:hover{color:var(--ink-max);border-color:var(--line)}
.ftr .langer,.langer-foot{display:inline-flex;align-items:center;width:auto;padding:7px 14px;margin:0}
@media (max-width:1240px){
  .nav a{padding:8px 9px;font-size:13px}
  .nav-cta{margin-left:8px;padding:8px 13px;font-size:13px}
  .hdr-in{gap:18px}
  .hdr-in .langer{display:none}
}

/* ═══════════ Korean typography ═══════════════════════════════════ */
html[lang="ko"]{
  --f-sans:'IBM Plex Sans KR','Inter Tight',-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo',sans-serif;
  --f-display:'Noto Serif KR','Newsreader','Apple SD Gothic Neo',serif;
  --f-serif:'Noto Serif KR','Apple SD Gothic Neo',serif;
  --display-track:-.026em;
  --display-lh:1.24;
  --display-weight:300;
}
html[lang="ko"] .display,html[lang="ko"] .h1,html[lang="ko"] .h2,
html[lang="ko"] .keymsg p,html[lang="ko"] .post-hero h1,html[lang="ko"] .feature h2{font-weight:300}
html[lang="ko"] .post-body h2,html[lang="ko"] .post-body h3{font-weight:400}
html[lang="ko"] .display{font-size:clamp(2.6rem,1.6rem + 4.4vw,5.6rem)}
html[lang="ko"] .hero .display{font-size:min(clamp(2.6rem,1.6rem + 4.4vw,5.6rem),11vh)}
html[lang="ko"] .h3,html[lang="ko"] .h4{letter-spacing:-.02em;line-height:1.35}
html[lang="ko"] h1,html[lang="ko"] h2,html[lang="ko"] h3,html[lang="ko"] h4{line-height:1.25}
/* Korean must break between words, never inside one */
html[lang="ko"] h1,html[lang="ko"] h2,html[lang="ko"] h3,html[lang="ko"] h4,
html[lang="ko"] .display,html[lang="ko"] .h1,html[lang="ko"] .h2,html[lang="ko"] .h3,html[lang="ko"] .h4,
html[lang="ko"] .lead,html[lang="ko"] p,html[lang="ko"] li,html[lang="ko"] .go,
html[lang="ko"] .scale-row .l,html[lang="ko"] .case-stat .c,html[lang="ko"] .foot-note,
html[lang="ko"] .tag,html[lang="ko"] .loop-note{word-break:keep-all;overflow-wrap:break-word}
html[lang="ko"] .eyebrow,html[lang="ko"] .mono,html[lang="ko"] .case-stat .c,
html[lang="ko"] .ftr h5,html[lang="ko"] .toc .t,html[lang="ko"] .adm label{letter-spacing:.06em}
html[lang="ko"] .taglist span{letter-spacing:0}
html[lang="ko"] .post-body{font-size:17.5px;line-height:1.8;letter-spacing:-.003em;word-break:keep-all}
html[lang="ko"] .lead,html[lang="ko"] .keymsg p,html[lang="ko"] .reason p,
html[lang="ko"] .case p,html[lang="ko"] .bullets p{word-break:keep-all}
html[lang="ko"] .case-stat .v{letter-spacing:-.03em}

/* anchored jumps should clear the sticky header */
section,h2[id],h3[id]{scroll-margin-top:96px}

/* a unit rides alongside the figure rather than competing with it */
.scale-row .n em{
  font-style:normal;font-size:.44em;letter-spacing:0;margin-left:.22em;
  color:var(--muted);font-family:var(--f-sans);
}