/* ============================================================
   CASTILLOWORKS · SITE Y
   Cold light. Liquid metal. Everything here started liquid,
   then it set.
   Shape rule: rectangles carry a 6px radius, coins and blobs
   are perfect circles, buttons are 6px slabs. That rule holds.
   ============================================================ */

:root{
  --field:#eef0f3;
  --field2:#e4e7eb;
  --ink:#12151a;
  --mute:#5b6470;
  --hair:rgba(18,21,26,.12);
  --shadow:0 18px 50px -18px rgba(24,34,52,.35);
  --iron:#9c6410;
  --cfmmw:#b23a5c;
  --bro:#0c7a43;
  --prod:#0b7d92;
  --gc:#ad5526;
  --iron-l:#d9a441;
  --cfmmw-l:#e08ea6;
  --bro-l:#4cc98a;
  --prod-l:#59bfd3;
  --gc-l:#d68a5d;
  --accent:var(--ink);
  --accent-l:#aab1bb;
  --disp:"Bricolage Grotesque",sans-serif;
  --body:"Instrument Sans",sans-serif;
}
body.t-iron{--accent:var(--iron);--accent-l:var(--iron-l)}
body.t-cfmmw{--accent:var(--cfmmw);--accent-l:var(--cfmmw-l)}
body.t-bro{--accent:var(--bro);--accent-l:var(--bro-l)}
body.t-prod{--accent:var(--prod);--accent-l:var(--prod-l)}
body.t-gc{--accent:var(--gc);--accent-l:var(--gc-l)}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--field);
  color:var(--ink);
  font-family:var(--body);
  font-size:17px;line-height:1.62;
  overflow-x:hidden;
}
::selection{background:var(--ink);color:var(--field)}
a{color:var(--ink)}
img{max-width:100%;display:block}

/* liquid layer */
#mercury{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
main,header,footer{position:relative;z-index:1}

/* ---------- header ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:40;
  background:rgba(238,240,243,.8);
  backdrop-filter:blur(16px) saturate(1.2);
  -webkit-backdrop-filter:blur(16px) saturate(1.2);
  border-bottom:1px solid var(--hair);
}
.nav{
  max-width:1340px;margin:0 auto;
  display:flex;align-items:center;gap:26px;
  padding:16px 28px;
}
.mark{display:flex;align-items:center;gap:11px;text-decoration:none;flex-shrink:0}
.mark svg{width:20px;height:24px;color:var(--ink)}
.mark .wm{
  font-family:var(--disp);font-weight:700;font-size:16px;
  letter-spacing:-.01em;
}
.mark .wm span{font-weight:300;color:var(--mute)}
.links{
  display:flex;align-items:center;gap:24px;margin-left:auto;
  overflow-x:auto;scrollbar-width:none;white-space:nowrap;
}
.links::-webkit-scrollbar{display:none}
.links a{
  text-decoration:none;color:var(--mute);
  font-size:14px;font-weight:500;
  transition:color .2s;
}
.links a:hover,.links a[aria-current]{color:var(--ink)}
.links a.rook-home{display:flex;align-items:center;gap:7px;color:var(--ink);font-weight:600}
.links a.rook-home svg{width:12px;height:15px}
@media(max-width:900px){.nav{gap:16px;padding:13px 18px}}

/* ---------- hero ---------- */
.hero{
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  max-width:1340px;margin:0 auto;
  padding:120px 28px 60px;
}
.kick{
  font-family:var(--body);font-weight:600;font-size:13.5px;
  letter-spacing:.02em;color:var(--mute);
  display:block;margin-bottom:22px;
}
.hero h1,.b-hero h1{
  font-family:var(--disp);font-weight:800;
  font-size:clamp(2.5rem,7.6vw,6.8rem);
  line-height:.95;letter-spacing:-.03em;
}
.b-hero h1{font-size:clamp(2.1rem,5.6vw,5rem);max-width:20ch}
.chrome{
  background:linear-gradient(108deg,#20252c 4%,#5d6570 30%,#aeb5bf 48%,#525a64 66%,#171b21 96%);
  background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
  animation:sheen 7s ease-in-out infinite alternate;
  filter:drop-shadow(0 1px 0 rgba(255,255,255,.75)) drop-shadow(0 10px 22px rgba(20,30,45,.22));
}
@keyframes sheen{from{background-position:0% 0}to{background-position:100% 0}}
.hero .lede,.b-hero .lede{
  margin-top:30px;max-width:56ch;
  font-size:clamp(1.02rem,1.35vw,1.2rem);
  color:var(--mute);font-weight:500;
}
.lede b{color:var(--ink);font-weight:600}
.btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:36px}
.btn{
  display:inline-block;text-decoration:none;
  font-family:var(--disp);font-weight:600;font-size:15px;
  padding:14px 28px;border-radius:6px;
  background:#fff;color:var(--ink);
  border:1px solid var(--hair);
  box-shadow:0 2px 6px rgba(24,34,52,.08),0 12px 28px -14px rgba(24,34,52,.25);
  transition:transform .25s cubic-bezier(.2,.9,.3,1.2),box-shadow .25s;
  will-change:transform;
}
.btn:hover{box-shadow:0 4px 10px rgba(24,34,52,.1),0 20px 40px -16px rgba(24,34,52,.35)}
.btn:active{transform:scale(.97)!important}
.btn.solid{
  background:linear-gradient(160deg,#2c333d,#12151a 60%);
  color:#f2f4f7;border-color:#12151a;
}
.btn.accent{
  background:var(--accent);color:#fff;border-color:var(--accent);
}

/* hero coin row */
.coin-row{
  display:flex;gap:clamp(10px,2.4vw,26px);margin-top:60px;flex-wrap:wrap;
}
.coin-row a{display:flex;flex-direction:column;align-items:center;gap:10px;text-decoration:none}
.coin-row a small{
  font-weight:600;font-size:12px;color:var(--mute);letter-spacing:.01em;
  transition:color .2s;
}
.coin-row a:hover small{color:var(--ink)}

/* ---------- coins ---------- */
.coin{
  border-radius:50%;
  transform-style:preserve-3d;
  transition:transform .18s ease-out;
  will-change:transform;
  filter:drop-shadow(0 14px 22px rgba(24,34,52,.3));
}
.coin svg{display:block;width:100%;height:100%}
.coin-s{width:clamp(58px,6.4vw,84px);height:clamp(58px,6.4vw,84px)}
.coin-l{width:clamp(180px,20vw,300px);height:clamp(180px,20vw,300px)}

/* ---------- statement ---------- */
.statement{
  max-width:1080px;margin:0 auto;
  padding:clamp(100px,15vh,190px) 28px;
}
.statement p{
  font-family:var(--disp);
  font-size:clamp(1.55rem,3.5vw,3rem);
  line-height:1.24;letter-spacing:-.015em;
  font-weight:250;
}
.statement .w{font-weight:250;display:inline-block}
.statement .aside{
  font-family:var(--body);font-weight:500;font-size:1.05rem;
  color:var(--mute);margin-top:36px;max-width:60ch;line-height:1.62;letter-spacing:0;
}
.statement .aside a{color:var(--ink)}

/* ---------- slabs (hub brand sections) ---------- */
.slabs{max-width:1340px;margin:0 auto;padding:0 28px}
.slab{
  display:grid;grid-template-columns:1fr auto;
  gap:clamp(26px,4vw,70px);align-items:center;
  background:#fff;
  border:1px solid var(--hair);
  border-radius:6px;
  padding:clamp(38px,5vw,78px);
  margin-bottom:clamp(22px,3vh,40px);
  text-decoration:none;color:var(--ink);
  box-shadow:var(--shadow);
  transition:transform .4s cubic-bezier(.2,.9,.3,1),box-shadow .4s;
}
.slab:hover{transform:translateY(-6px);box-shadow:0 30px 70px -22px rgba(24,34,52,.45)}
.slab.rev{grid-template-columns:auto 1fr}
.slab.rev .slab-coin{order:-1}
.slab h2{
  font-family:var(--disp);font-weight:800;
  font-size:clamp(1.9rem,4.2vw,3.6rem);
  line-height:.98;letter-spacing:-.025em;
}
.slab h2 span{color:var(--ac)}
.slab .role{
  font-weight:600;font-size:13.5px;color:var(--ac);
  display:block;margin-bottom:16px;
}
.slab p{color:var(--mute);font-weight:500;max-width:52ch;margin-top:18px}
.slab .go{
  display:inline-block;margin-top:28px;
  font-family:var(--disp);font-weight:600;font-size:15px;
  color:var(--ink);
  border-bottom:2px solid var(--ac);
  padding-bottom:3px;
  transition:letter-spacing .3s;
}
.slab:hover .go{letter-spacing:.03em}
@media(max-width:820px){
  .slab,.slab.rev{grid-template-columns:1fr}
  .slab.rev .slab-coin{order:0}
  .slab-coin{justify-self:center}
}

/* empty mold */
.slab.mold{
  background:transparent;
  border:2px dashed rgba(18,21,26,.22);
  box-shadow:none;cursor:default;
}
.slab.mold:hover{transform:none;box-shadow:none}
.slab.mold h2{color:var(--mute)}
.mold-ring{
  width:clamp(140px,16vw,230px);height:clamp(140px,16vw,230px);
  border-radius:50%;
  border:2px dashed rgba(18,21,26,.25);
  display:flex;align-items:center;justify-content:center;
  color:var(--mute);font-family:var(--disp);font-weight:300;
  font-size:clamp(1rem,1.4vw,1.25rem);
}

/* ---------- division pages ---------- */
.wrap{max-width:1340px;margin:0 auto;padding:0 28px}
.b-hero{
  min-height:86svh;display:flex;flex-direction:column;justify-content:center;
  padding-top:130px;padding-bottom:50px;position:relative;
}
.b-hero .em{color:var(--accent)}
.b-hero .hero-coin{
  position:absolute;right:clamp(0px,4vw,60px);top:50%;
  transform:translateY(-50%);
}
@media(max-width:980px){.b-hero .hero-coin{display:none}}
@media(min-width:981px){.b-hero .txt{max-width:62%}}

.block{padding:clamp(70px,10vh,140px) 0;border-top:1px solid var(--hair)}
.block h2{
  font-family:var(--disp);font-weight:800;
  font-size:clamp(1.7rem,3.4vw,2.9rem);line-height:1.02;letter-spacing:-.02em;
  max-width:24ch;margin-bottom:40px;
}
.block h2 .em{color:var(--accent)}
.prose{max-width:64ch;color:var(--mute);font-weight:500;margin-top:18px}
.prose b{color:var(--ink);font-weight:600}
.prose a{color:var(--ink)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:22px}
.card{
  background:#fff;border:1px solid var(--hair);border-radius:6px;
  padding:34px 30px;
  box-shadow:0 10px 30px -16px rgba(24,34,52,.28);
  transition:transform .35s cubic-bezier(.2,.9,.3,1),box-shadow .35s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 22px 48px -18px rgba(24,34,52,.4)}
.card .cn{
  font-weight:700;font-size:12.5px;letter-spacing:.01em;
  color:var(--accent);display:block;margin-bottom:14px;
}
.card h3{font-family:var(--disp);font-weight:700;font-size:1.3rem;line-height:1.2;margin-bottom:12px;letter-spacing:-.01em}
.card p{color:var(--mute);font-size:.97rem;font-weight:500}
.card .price{
  font-family:var(--disp);font-weight:800;font-size:1.7rem;letter-spacing:-.02em;
  display:block;margin:4px 0 14px;color:var(--ink);
}

/* note panel */
.note{
  background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 10%,#fff),#fff 55%);
  border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);
  border-radius:6px;
  padding:34px 32px;max-width:720px;margin-top:44px;
  box-shadow:0 14px 34px -18px rgba(24,34,52,.3);
}
.note h3{font-family:var(--disp);font-weight:700;font-size:1.35rem;margin-bottom:10px}
.note p{color:var(--mute);font-weight:500}
.note a{color:var(--ink)}

/* q&a */
.qa{max-width:840px}
.qa details{
  background:#fff;border:1px solid var(--hair);border-radius:6px;
  margin-bottom:12px;overflow:hidden;
  box-shadow:0 6px 20px -14px rgba(24,34,52,.25);
}
.qa summary{
  cursor:pointer;list-style:none;
  font-family:var(--disp);font-weight:700;font-size:1.12rem;letter-spacing:-.01em;
  padding:22px 54px 22px 26px;position:relative;
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{
  content:"";position:absolute;right:24px;top:50%;
  width:12px;height:12px;
  border-right:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .3s;
}
.qa details[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.qa .qa-a{color:var(--mute);font-weight:500;padding:0 26px 24px;max-width:62ch}

/* stats */
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px}
.fact{
  background:#fff;border:1px solid var(--hair);border-radius:6px;
  padding:32px 28px;box-shadow:0 10px 30px -16px rgba(24,34,52,.28);
}
.fact .fv{
  font-family:var(--disp);font-weight:800;letter-spacing:-.03em;
  font-size:clamp(2.2rem,3.8vw,3.2rem);line-height:1;color:var(--accent);display:block;
}
.fact .fk{font-weight:600;font-size:13px;color:var(--mute);display:block;margin-top:12px}

/* legal */
.legal h3{font-family:var(--disp);font-weight:700;font-size:1.25rem;margin:40px 0 12px;letter-spacing:-.01em}
.legal p{max-width:70ch;color:var(--mute);font-weight:500;margin-top:12px;font-size:.98rem}
.legal p b{color:var(--ink);font-weight:600}
.legal a{color:var(--ink)}

/* founder */
.founder{display:grid;grid-template-columns:minmax(220px,360px) 1fr;gap:clamp(28px,4vw,64px);align-items:start}
.founder img{
  width:100%;border-radius:6px;
  border:1px solid var(--hair);
  box-shadow:var(--shadow);
  filter:grayscale(.15);
}
@media(max-width:760px){.founder{grid-template-columns:1fr}}

/* ---------- footer ---------- */
footer{
  border-top:1px solid var(--hair);
  background:var(--field2);
  margin-top:clamp(70px,10vh,130px);
}
.foot{
  max-width:1340px;margin:0 auto;padding:64px 28px 30px;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
}
.f-brand .mark{margin-bottom:18px}
.f-brand p{color:var(--mute);font-size:.95rem;font-weight:500;max-width:34ch}
.f-col h4{
  font-family:var(--disp);font-weight:700;font-size:13px;
  color:var(--ink);margin-bottom:16px;
}
.f-col a,.f-col span{
  display:block;text-decoration:none;color:var(--mute);
  font-size:.95rem;font-weight:500;margin-bottom:10px;
}
.f-col a:hover{color:var(--ink)}
.f-bottom{
  max-width:1340px;margin:0 auto;padding:22px 28px 34px;
  border-top:1px solid var(--hair);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:.82rem;color:var(--mute);
}
@media(max-width:900px){.foot{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot{grid-template-columns:1fr}}

/* ---------- reveals ---------- */
.rv{opacity:0;transform:translateY(30px)}
.rv.on{opacity:1;transform:none;transition:opacity .9s cubic-bezier(.2,.9,.3,1),transform .9s cubic-bezier(.2,.9,.3,1)}

/* ---------- page wipe ---------- */
#wipe{
  position:fixed;inset:0;z-index:90;pointer-events:none;
  background:radial-gradient(circle at 50% 50%,#f7f9fb 0%,#c9ced6 45%,#868e99 100%);
  clip-path:circle(0% at 50% 50%);
}
#wipe.in{pointer-events:auto;transition:clip-path .42s cubic-bezier(.5,0,.7,.4)}
#wipe.out{transition:clip-path .5s cubic-bezier(.3,.6,.3,1)}

/* 404 */
.lost{min-height:100svh;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;max-width:1340px;margin:0 auto;padding:0 28px}
.lost h1{font-family:var(--disp);font-weight:800;font-size:clamp(2.4rem,6.6vw,5.4rem);line-height:.98;letter-spacing:-.03em}
.lost p{color:var(--mute);margin:24px 0 34px;font-weight:500}

/* ---------- reduced motion ---------- */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .chrome{animation:none}
  .rv{opacity:1;transform:none;transition:none}
  .coin,.slab,.card,.btn{transition:none}
  #wipe{display:none}
}