/* CORE Thread — THE FIRST THREAD
   Ground: CORE Black. One accent: Thread Orange, spent like ammunition.
   Display: Chakra Petch · Body: Inter · Technical: JetBrains Mono */

:root{
  --ink:#0A0C0B;
  --char:#121413;
  --char-2:#161817;
  --hairline:rgba(233,233,232,.13);
  --hairline-soft:rgba(233,233,232,.07);
  --text:#E9E9E8;
  --steel:#9AA5AD;
  --steel-dim:#7D8891;
  --orange:#E67740;
  --rust:#A8420F;
  --bone:#F3EEE7;
  --bone-ink:#17130F;
  --bone-muted:#5C544B;
  --disp:"Chakra Petch","Space Grotesk",Arial,sans-serif;
  --body:"Inter",Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --wrap:1120px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink);color:var(--text);
  font-family:var(--body);font-size:16.5px;line-height:1.65;
  overflow-x:hidden;
}
img{max-width:100%;height:auto}
a{color:var(--orange)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--orange);outline-offset:3px;
}
::selection{background:var(--rust);color:var(--bone)}

.wrap{max-width:var(--wrap);margin:0 auto;padding-left:28px;padding-right:28px}

/* ---------- the thread ---------- */
#thread-svg{
  position:absolute;top:0;left:0;pointer-events:none;z-index:1;
}
#thread-svg .t-path{
  fill:none;stroke:var(--orange);stroke-width:2.25;stroke-linecap:round;
}
#thread-svg .t-knot{fill:var(--orange);opacity:0;transition:opacity .4s ease}
#thread-svg .t-knot.on{opacity:1}

/* content sits above the thread; section surfaces stay below it */
section,footer,header.site-nav{position:relative}
section > .wrap,footer > .wrap{position:relative;z-index:2}

/* ---------- nav ---------- */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:40;
  transition:background .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-nav.scrolled{background:rgba(10,12,11,.92);border-bottom-color:var(--hairline-soft);backdrop-filter:blur(8px)}
.site-nav .bar{
  max-width:var(--wrap);margin:0 auto;padding:18px 28px;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
}
.site-nav .logo{justify-self:center}
.site-nav .logo img{width:132px;display:block}
.site-nav .nl{
  font-family:var(--mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--steel);text-decoration:none;transition:color .2s ease-out;
  padding:6px 0;
}
.site-nav .nl:first-child{justify-self:end;margin-right:clamp(26px,4.5vw,58px)}
.site-nav .nl:last-child{justify-self:start;margin-left:clamp(26px,4.5vw,58px)}
.site-nav .nl:hover{color:var(--text)}
.site-nav .nl[aria-current="page"]{color:var(--text);border-bottom:1px solid var(--rust)}
.btn{
  display:inline-block;background:var(--orange);color:var(--ink);
  font-family:var(--disp);font-weight:600;font-size:15.5px;letter-spacing:.02em;
  padding:13px 26px;border-radius:4px;text-decoration:none;border:0;cursor:pointer;
  transition:transform .2s ease-out,background .2s ease-out;
}
.btn:hover{background:#F08A55;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-ghost{
  display:inline-block;color:var(--text);border:1px solid var(--hairline);
  font-family:var(--disp);font-weight:600;font-size:15.5px;letter-spacing:.02em;
  padding:12px 24px;border-radius:4px;text-decoration:none;
  transition:border-color .2s ease-out,color .2s ease-out;
}
.btn-ghost:hover{border-color:var(--steel);color:var(--text)}
.nav-toggle{display:none}

/* ---------- shared type ---------- */
.mono-label{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--orange);margin:0 0 16px;
}
.mono-label .bk{color:var(--steel-dim)}
h1,h2,h3{font-family:var(--disp);line-height:1.08;margin:0;text-wrap:balance}
h1{font-weight:700;font-size:clamp(34px,4.6vw,58px);letter-spacing:-.01em}
h2{font-weight:600;font-size:clamp(26px,3.4vw,40px)}
h3{font-weight:600;font-size:clamp(18px,2vw,22px);line-height:1.2}
.lede{color:var(--steel);font-size:clamp(16.5px,1.6vw,19px);max-width:62ch}
.lede b,.lede strong{color:var(--text)}
.sub{margin-top:18px}

/* reveal-on-scroll (content exists at load; JS only transitions it in) */
.rv{opacity:0;transform:translateY(16px);transition:opacity .28s ease-out,transform .28s ease-out}
.values-grid .rv:nth-child(2),.method-steps .rv:nth-child(2),.caps-list .rv:nth-child(2){transition-delay:60ms}
.values-grid .rv:nth-child(3),.method-steps .rv:nth-child(3),.caps-list .rv:nth-child(4){transition-delay:120ms}
.values-grid .rv:nth-child(4),.method-steps .rv:nth-child(4),.caps-list .rv:nth-child(6){transition-delay:180ms}
.rv.in{opacity:1;transform:none}
html.no-js .rv,html.reduce .rv{opacity:1;transform:none}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:120px 0 80px}
.hero .wrap{width:100%}
.hero .mono-label{margin-bottom:24px}
.hero h1{max-width:19ch}
.hero .lede{margin:26px 0 38px}
.hero .cta-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero .scroll-cue{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.32em;text-transform:uppercase;
  color:var(--steel-dim);margin-top:72px;display:inline-flex;align-items:center;gap:12px;
}
.hero .scroll-cue::after{content:"";width:1px;height:34px;background:var(--rust);display:inline-block}

/* ---------- values band (the ONE light surface) ---------- */
.values{background:var(--bone);color:var(--bone-ink);padding:104px 0}
.values .mono-label{color:var(--rust)}
.values .mono-label .bk{color:#B0A99F}
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;margin-top:44px}
.value .letter{
  font-family:var(--disp);font-weight:700;font-size:clamp(44px,5vw,64px);
  color:var(--rust);line-height:1;
}
.value h3{color:var(--bone-ink);margin:10px 0 8px;font-size:16px;letter-spacing:.1em;text-transform:uppercase}
.value p{margin:0;color:var(--bone-muted);font-size:15px;line-height:1.6}

/* ---------- method strip ---------- */
.method{padding:112px 0}
.method-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:34px;margin-top:52px}
.step{border-left:1px solid var(--hairline-soft);padding-left:18px}
.step .mono-label{margin-bottom:12px;font-size:11.5px;letter-spacing:.18em;white-space:nowrap}
.step h3{margin-bottom:8px}
.step p{margin:0;color:var(--steel);font-size:15px}

/* ---------- capabilities: numbered editorial list ---------- */
.caps{padding:112px 0 120px;border-top:1px solid var(--hairline-soft)}
.caps-list{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;column-gap:64px}
.cap{
  display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:baseline;
  padding:26px 0;border-bottom:1px solid var(--hairline-soft);
}
.cap .num{font-family:var(--mono);font-size:12.5px;color:var(--orange);letter-spacing:.1em}
.cap h3{margin-bottom:6px}
.cap p{margin:0;color:var(--steel);font-size:15px}

/* ---------- founders / story ---------- */
.story{padding:112px 0;border-top:1px solid var(--hairline-soft)}
.story-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:start}
.story .lede{max-width:56ch}
.founders{display:flex;flex-direction:column;border-top:2px solid var(--rust)}
.founder{display:flex;justify-content:space-between;gap:18px;align-items:baseline;padding:16px 2px;border-bottom:1px solid var(--hairline-soft)}
.founder .fn{font-family:var(--disp);font-weight:600;font-size:18px}
.founder .ft{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--steel-dim);text-align:right}

/* ---------- values marquee ---------- */
.marquee{border-top:1px solid var(--hairline-soft);border-bottom:1px solid var(--hairline-soft);overflow:hidden;padding:18px 0}
.marquee .track{display:flex;width:max-content;animation:marquee 130s linear infinite;gap:0}
.marquee span{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.3em;text-transform:uppercase;
  color:var(--steel-dim);white-space:nowrap;padding-right:3.2em;
}
.marquee span i{font-style:normal;color:var(--rust)}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
html.reduce .marquee .track,html.no-js .marquee .track{animation:none}

/* ---------- final CTA ---------- */
.final-cta{padding:136px 0 144px;text-align:left}
.final-cta h2{font-size:clamp(30px,4.4vw,52px);max-width:20ch}
.final-cta .lede{margin:22px 0 36px}
.knot-caption{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--steel-dim);margin-top:60px;
}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--hairline);padding:0 0 44px;background:var(--ink);overflow:hidden}
.foot-mark{
  font-family:var(--disp);font-weight:700;margin:0;
  font-size:clamp(2.9rem,11.5vw,10.5rem);line-height:1;letter-spacing:.01em;
  white-space:nowrap;text-align:center;
  padding:clamp(38px,6vh,72px) 10px 0;
  color:rgba(233,233,232,.10);
}
.foot-mark .o{color:rgba(230,119,64,.30)}
@supports ((-webkit-background-clip:text) or (background-clip:text)){
  .foot-mark{
    background:linear-gradient(to bottom,rgba(233,233,232,.40) 0%,rgba(233,233,232,.13) 55%,rgba(233,233,232,0) 100%);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .foot-mark .o{
    background:linear-gradient(to bottom,rgba(230,119,64,.60) 0%,rgba(230,119,64,.20) 55%,rgba(230,119,64,0) 100%);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
}
.foot-values{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--steel-dim);margin:16px 0 0;text-align:center;
}
.foot-values i{font-style:normal;color:var(--rust)}
.foot-row{
  display:flex;justify-content:space-between;align-items:baseline;gap:16px 32px;
  flex-wrap:wrap;padding-top:clamp(26px,4vh,44px);
}
.foot-links{display:flex;gap:clamp(16px,2.2vw,30px);flex-wrap:wrap}
.foot-links a{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--steel);text-decoration:none;transition:color .2s ease-out;
}
.foot-links a:hover{color:var(--text)}
.foot-legal{color:var(--steel-dim);font-size:12.5px;margin:0}

/* ---------- interior pages ---------- */
.page-head{padding:176px 0 72px}
.page-head h1{max-width:18ch}
.page-head .lede{margin-top:22px}

/* expertise detail */
.exp-list{padding:20px 0 90px}
.exp-item{
  display:grid;grid-template-columns:120px 1fr;gap:36px;padding:52px 0;
  border-top:1px solid var(--hairline-soft);align-items:start;
}
.exp-item .num{font-family:var(--mono);font-size:13.5px;color:var(--orange);letter-spacing:.12em;padding-top:8px}
.exp-item h2{font-size:clamp(22px,2.6vw,30px);line-height:1.15;margin-bottom:12px}
.exp-item p{margin:0 0 12px;color:var(--steel);font-size:15px;max-width:66ch}
.exp-item p:last-child{margin-bottom:0}
.exp-item p b{color:var(--text)}

/* the one mono readout surface */
.readout{background:var(--char);border:1px solid var(--hairline);border-radius:6px;padding:34px 38px;margin:72px 0}
.readout .rt{font-family:var(--mono);font-size:12.5px;letter-spacing:.2em;color:var(--steel-dim);text-transform:uppercase;margin:0 0 18px}
.readout ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.readout li{font-family:var(--mono);font-size:13.5px;color:var(--steel);line-height:1.7}
.readout li b{color:var(--text);font-weight:500}
.readout li .ok{color:var(--orange)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;padding-bottom:120px;align-items:start}
form{display:flex;flex-direction:column;gap:20px}
.field label{
  display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--steel-dim);margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;background:var(--char);border:1px solid var(--hairline);border-radius:4px;
  color:var(--text);font-family:var(--body);font-size:15.5px;padding:13px 15px;
  transition:border-color .2s ease-out;
}
.field input:hover,.field textarea:hover{border-color:var(--steel-dim)}
.field textarea{min-height:150px;resize:vertical}
form .btn{align-self:flex-start;margin-top:6px}
.form-note{color:var(--steel-dim);font-size:13.5px;margin:2px 0 0}
.contact-side h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:16px}
.contact-side .founders{margin-top:8px}
.contact-side .mail{display:inline-block;margin-top:26px;font-size:16px}
.contact-side .aside-note{color:var(--steel-dim);font-size:13.5px;margin-top:26px;max-width:44ch}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .values-grid,.method-steps{grid-template-columns:repeat(2,1fr)}
  .caps-list{grid-template-columns:1fr}
  .story-grid,.contact-grid{grid-template-columns:1fr;gap:44px}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .site-nav .logo img{width:104px}
  .site-nav .bar{padding:14px 20px}
  .site-nav .nl{font-size:10.5px;letter-spacing:.16em}
  .foot-values{font-size:10.5px;letter-spacing:.16em}
  .founder{flex-direction:column;gap:3px;align-items:flex-start}
  .founder .ft{text-align:left}
  #thread-svg .t-path{stroke-width:1.75}
  .values-grid{gap:30px}
  .method-steps{grid-template-columns:1fr;gap:30px}
  .cap{grid-template-columns:40px 1fr;gap:12px}
  .exp-item{grid-template-columns:1fr;gap:10px;padding:40px 0}
  .hero{padding-top:110px}
  .page-head{padding:144px 0 56px}
  .values{padding:80px 0}
  .method,.caps,.story{padding:88px 0}
  .caps{padding-bottom:96px}
  .final-cta{padding:104px 0 112px}
}


/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none;transition-delay:0s}
  .marquee .track{animation:none}
  .btn,.btn-ghost{transition:none}
}