/* KSRAT — website styles
   Tokens are copied verbatim from 02_Brand/Brand-Guidelines/tokens.css (the brand source of truth).
   Committed light theme, per the brand direction. */

:root{
  /* Brand */
  --ksrat-obsidian:#161616;
  --ksrat-pearl:#F2F1ED;
  --ksrat-crimson:#710014;
  --ksrat-sand:#B38F6F;
  /* Supporting neutrals */
  --ksrat-paper:#FFFFFF;
  --ksrat-slate:#57534B;
  --ksrat-hairline:#DED9D0;

  /* Roles */
  --ink:var(--ksrat-obsidian);
  --bg:var(--ksrat-pearl);
  --accent:var(--ksrat-crimson);
  --accent-press:color-mix(in srgb, var(--ksrat-crimson) 82%, #000);
  --ink-soft:color-mix(in srgb, var(--ksrat-obsidian) 88%, var(--ksrat-pearl));
  --on-dark:var(--ksrat-pearl);
  --on-dark-soft:color-mix(in srgb, var(--ksrat-pearl) 74%, var(--ksrat-obsidian));
  --on-dark-rule:color-mix(in srgb, var(--ksrat-pearl) 16%, var(--ksrat-obsidian));

  /* Type */
  --display:"Bricolage Grotesque","Arial Narrow",system-ui,sans-serif;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --deva:"Noto Serif Devanagari","Newsreader",serif;

  /* Space & motion */
  --gutter:clamp(1rem,5vw,6rem);
  --section:clamp(5rem,11vw,10rem);
  --radius:3px;
  --ease:cubic-bezier(.2,.7,.2,1);

  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--serif);
  font-size:1.0625rem;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:var(--ink);color:var(--bg);}
img,svg{max-width:100%;}
a{color:inherit;}
p{margin:0;max-width:60ch;}
h1,h2,h3{margin:0;font-family:var(--display);font-weight:700;text-wrap:balance;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- Page frame + the Throughline ---------- */
.page{position:relative;overflow:hidden;}
.throughline{position:absolute;left:0;top:0;width:100%;pointer-events:none;z-index:0;}
.throughline{overflow:visible;}
/* The Throughline is drawn as a brush stroke, generated from the page in site.js */
.tl-core{fill:var(--ink);}
.tl-bristles{fill:none;stroke:var(--ink);stroke-linecap:round;stroke-linejoin:round;}
.tl-gaps,.ul-gaps{fill:none;stroke:var(--bg);stroke-linecap:round;stroke-linejoin:round;}
.tl-reveal,.ul-reveal,.enso-reveal{fill:none;stroke:#fff;}
.shell{position:relative;z-index:1;}
.wrap{padding-inline:var(--gutter);max-width:1440px;margin-inline:auto;}
.band{padding-block:var(--section);}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:clamp(1rem,2.6vw,2.5rem);}

/* ---------- Type ---------- */
.over{
  font-family:var(--display);font-weight:500;font-size:.72rem;line-height:1.3;
  letter-spacing:.18em;text-transform:uppercase;color:var(--ksrat-slate);
}
.over .deva{letter-spacing:0;text-transform:none;font-size:.95rem;font-weight:600;}
.h-hero{font-weight:800;font-size:clamp(3.6rem,11.2vw,9.25rem);line-height:.9;letter-spacing:-.045em;}
.h-page{font-weight:800;font-size:clamp(3rem,8.4vw,6.5rem);line-height:.93;letter-spacing:-.04em;}
.h-sec{font-size:clamp(2.1rem,4.8vw,3.6rem);line-height:1.02;letter-spacing:-.03em;}
.h-item{font-weight:600;font-size:clamp(1.3rem,2.1vw,1.6rem);line-height:1.15;letter-spacing:-.015em;}
.lead{font-weight:300;font-size:clamp(1.2rem,2vw,1.45rem);line-height:1.5;color:var(--ink-soft);max-width:36ch;}
.body-l{font-size:clamp(1.08rem,1.5vw,1.2rem);line-height:1.6;color:var(--ink-soft);}
.muted{color:var(--ksrat-slate);}
.deva{font-family:var(--deva);}
.stack{display:flex;flex-direction:column;gap:1.25rem;align-items:flex-start;}

/* ---------- Buttons & links ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6rem;
  font-family:var(--display);font-weight:500;font-size:.95rem;letter-spacing:.005em;line-height:1.1;
  background:var(--accent);color:var(--ksrat-pearl);
  padding:.95rem 1.35rem;border:1px solid var(--accent);border-radius:var(--radius);
  text-decoration:none;cursor:pointer;
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.btn:hover{background:var(--accent-press);border-color:var(--accent-press);transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn .arr{transition:transform .2s var(--ease);}
.btn:hover .arr{transform:translateX(3px);}
.btn.sm{font-size:.84rem;padding:.62rem .95rem;}
.btn.lg{font-size:1.02rem;padding:1.1rem 1.6rem;}
.cta-note{font-family:var(--display);font-size:.8rem;letter-spacing:.01em;color:var(--ksrat-slate);}

.textlink{
  font-family:var(--display);font-weight:500;font-size:.95rem;text-decoration:none;color:var(--ink);
  background:linear-gradient(var(--ink),var(--ink)) 0 100%/0 1.5px no-repeat;
  border-bottom:1.5px solid var(--ksrat-sand);padding-bottom:2px;
  transition:background-size .3s var(--ease);
}
.textlink:hover{background-size:100% 1.5px;border-bottom-color:transparent;}

/* ---------- Header ---------- */
.site-head{
  position:sticky;top:env(safe-area-inset-top,0px);z-index:30;
  background:var(--bg);border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease);
}
.site-head.is-stuck{border-bottom-color:var(--ksrat-hairline);}
.head-in{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.9rem;}
.brand{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink);}
.brand .mark{width:26px;height:auto;display:block;color:var(--ink);}
.brand .word{font-family:var(--display);font-weight:800;font-size:1.28rem;letter-spacing:.04em;line-height:1;}
.brand .deva{font-size:1rem;font-weight:600;color:var(--ksrat-sand);line-height:1;transform:translateY(1px);}
.head-nav{display:flex;align-items:center;gap:clamp(1rem,2.6vw,2.2rem);}
.head-nav a:not(.btn){
  font-family:var(--display);font-size:.9rem;text-decoration:none;color:var(--ink);position:relative;padding-block:.3rem;
}
.head-nav a:not(.btn)::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.head-nav a:not(.btn):hover::after,.head-nav a[aria-current="page"]::after{transform:scaleX(1);}

/* ---------- Hero ---------- */
.hero{padding-top:clamp(2.5rem,6vw,5rem);padding-bottom:var(--section);}
.hero .grid{align-items:center;row-gap:2rem;}
.hero-copy{grid-column:1 / span 7;display:flex;flex-direction:column;gap:1.6rem;align-items:flex-start;}
.hero-mark{grid-column:9 / span 4;justify-self:end;width:min(100%,420px);}
.hero-mark.small{grid-column:10 / span 3;width:min(100%,260px);}
.enso{display:block;width:100%;height:auto;color:var(--ink);overflow:visible;}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 1.5rem;margin-top:.4rem;}

/* ---------- Dark sections ---------- */
.dark{background:var(--ink);color:var(--on-dark);}
.dark .over{color:var(--ksrat-sand);}
.dark .muted,.dark .lead,.dark .body-l{color:var(--on-dark-soft);}

/* Name moment */
.name .grid{row-gap:3rem;}
.name-head{grid-column:1 / span 7;}
.name-word{font-family:var(--deva);font-weight:600;font-size:clamp(5rem,17vw,12.5rem);line-height:1.02;margin:.6rem 0 .2rem;}
.name-say{font-family:var(--display);font-size:.95rem;letter-spacing:.03em;color:var(--ksrat-sand);}
.name-line{grid-column:8 / span 5;align-self:end;font-family:var(--serif);font-weight:300;font-size:clamp(1.4rem,2.6vw,2rem);line-height:1.4;max-width:22ch;}
.name-line em{font-style:italic;color:var(--ksrat-paper);}
.layers{grid-column:1 / -1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));column-gap:clamp(1rem,2.6vw,2.5rem);margin-top:clamp(2rem,5vw,4rem);}
.layer{border-top:1px solid var(--on-dark-rule);padding-top:1.4rem;display:flex;flex-direction:column;gap:.7rem;}
.layer .num{font-family:var(--display);font-size:.8rem;letter-spacing:.08em;color:var(--ksrat-sand);}
.layer h3{font-size:clamp(1.6rem,3vw,2.2rem);letter-spacing:-.02em;}
.layer p{color:var(--on-dark-soft);font-size:1.08rem;max-width:34ch;}

/* ---------- Split sections (heading left, body right) ---------- */
.split .grid{row-gap:2rem;align-items:start;}
.split-head{grid-column:1 / span 5;display:flex;flex-direction:column;gap:1.2rem;}
.split-body{grid-column:7 / span 6;display:flex;flex-direction:column;gap:1.4rem;}
.split-body.wide{grid-column:6 / span 7;}

/* Hairline rows: term + description */
.rows{border-bottom:1px solid var(--ksrat-hairline);}
.row{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:.5rem 2rem;padding-block:1.35rem;border-top:1px solid var(--ksrat-hairline);align-items:baseline;}
.row dt,.row .t{font-family:var(--display);font-weight:600;font-size:1.08rem;line-height:1.3;letter-spacing:-.005em;}
.row dd,.row .d{margin:0;color:var(--ink-soft);}
.rows.simple .row{grid-template-columns:1fr;}

/* Discipline list */
.disciplines{display:flex;flex-wrap:wrap;gap:.5rem .5rem;}
.disciplines li{font-family:var(--display);font-size:.86rem;color:var(--ink);border:1px solid var(--ksrat-hairline);background:var(--ksrat-paper);border-radius:var(--radius);padding:.5rem .8rem;}

/* ---------- Fork: two ways in ---------- */
.fork .grid{row-gap:3rem;}
.fork-head{grid-column:1 / -1;display:flex;flex-direction:column;gap:1.2rem;}
.path{grid-column:span 6;border-top:2px solid var(--ink);padding-top:1.6rem;display:flex;flex-direction:column;gap:1.1rem;align-items:flex-start;}
.path .facts{display:flex;flex-direction:column;width:100%;}
.path .facts li{border-top:1px solid var(--ksrat-hairline);padding-block:.7rem;font-size:1.02rem;color:var(--ink-soft);}
.path .facts li:last-child{border-bottom:1px solid var(--ksrat-hairline);}

/* ---------- Steps (a real sequence, so numbered) ---------- */
.steps{display:flex;flex-direction:column;counter-reset:step;}
.step{display:grid;grid-template-columns:3.25rem minmax(0,1fr);gap:1.25rem;padding-block:1.4rem;counter-increment:step;}
.step + .step{border-top:1px solid var(--ksrat-hairline);}
.step .n{
  width:2.4rem;height:2.4rem;display:grid;place-items:center;
  font-family:var(--display);font-weight:600;font-size:.9rem;color:var(--ink);
  background:var(--bg);border:1px solid var(--ink);border-radius:50%;
  position:relative;z-index:1;
}
.step .n::before{content:counter(step);}
.step h3{font-size:clamp(1.2rem,1.9vw,1.4rem);font-weight:600;letter-spacing:-.01em;line-height:1.25;margin-bottom:.35rem;padding-top:.3rem;}
.step p{color:var(--ink-soft);}

/* ---------- FAQ ---------- */
.faq{border-bottom:1px solid var(--ksrat-hairline);}
.faq details{border-top:1px solid var(--ksrat-hairline);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:baseline;gap:1.5rem;
  padding-block:1.25rem;font-family:var(--display);font-weight:600;font-size:1.08rem;line-height:1.35;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-weight:400;font-size:1.4rem;line-height:1;color:var(--ksrat-slate);transition:transform .25s var(--ease);}
.faq details[open] summary::after{transform:rotate(45deg);}
.faq .a{padding-bottom:1.4rem;color:var(--ink-soft);}

/* ---------- Final CTA ---------- */
.final .grid{row-gap:1.6rem;align-items:center;}
.final-mark{grid-column:1 / span 4;width:min(100%,260px);color:var(--ink);}
.final-in{grid-column:7 / span 6;display:flex;flex-direction:column;gap:1.4rem;align-items:flex-start;}
.final .under{display:block;width:min(360px,80%);height:auto;aspect-ratio:300 / 24;margin-top:-.4rem;overflow:visible;}
.under .ul-core{fill:var(--accent);}
.under .ul-bristles{fill:none;stroke:var(--accent);stroke-linecap:round;stroke-linejoin:round;}
.aside-link{font-family:var(--display);font-size:.92rem;color:var(--ksrat-slate);}
.aside-link a{color:var(--ink);}

/* ---------- Location (studio) ---------- */
.place{font-family:var(--display);font-weight:700;font-size:clamp(2.4rem,6vw,4.6rem);line-height:.98;letter-spacing:-.035em;}

/* ---------- Footer ---------- */
.site-foot{background:var(--ink);color:var(--on-dark);padding-block:clamp(3.5rem,7vw,6rem) 2rem;}
.foot-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:2.5rem;}
.site-foot .brand{color:var(--on-dark);}
.site-foot .brand .mark{color:var(--on-dark);width:34px;}
.site-foot .brand .word{font-size:1.5rem;}
.foot-tag{font-family:var(--serif);font-style:italic;font-size:1.15rem;color:var(--on-dark-soft);margin-top:.9rem;}
.foot-nav{display:grid;grid-template-columns:repeat(2,auto);gap:.8rem 3rem;}
.foot-nav a{font-family:var(--display);font-size:.9rem;color:var(--on-dark-soft);text-decoration:none;}
.foot-nav a:hover{color:var(--on-dark);}
.foot-rule{height:1px;background:var(--on-dark-rule);margin:2.8rem 0 1.3rem;}
.foot-fine{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem 1.5rem;font-family:var(--display);font-size:.76rem;letter-spacing:.02em;color:color-mix(in srgb, var(--ksrat-pearl) 52%, var(--ksrat-obsidian));}

/* ---------- Consultation dialog ---------- */
.consult{
  width:min(560px,calc(100vw - 2rem));max-height:calc(100dvh - 2rem);overflow:auto;
  border:0;border-radius:4px;padding:0;background:var(--bg);color:var(--ink);
  box-shadow:0 30px 80px -20px rgba(22,22,22,.45);
}
.consult::backdrop{background:rgba(22,22,22,.55);}
.consult form{padding:clamp(1.5rem,4vw,2.4rem);display:flex;flex-direction:column;gap:1.4rem;}
.consult .top{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;}
.consult .x{
  background:none;border:1px solid var(--ksrat-hairline);border-radius:50%;width:2.4rem;height:2.4rem;flex:none;
  font-size:1.2rem;line-height:1;cursor:pointer;color:var(--ink);display:grid;place-items:center;
}
.consult .x:hover{border-color:var(--ink);}
.consult h2{font-size:clamp(1.7rem,4vw,2.2rem);letter-spacing:-.025em;line-height:1.05;margin-top:.5rem;}
.field{display:flex;flex-direction:column;gap:.45rem;}
.field label,.field legend{font-family:var(--display);font-weight:500;font-size:.88rem;}
.field .hint{font-family:var(--display);font-size:.78rem;color:var(--ksrat-slate);}
.field-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.4rem 1rem;}
.field input::placeholder{color:color-mix(in srgb, var(--ksrat-slate) 60%, var(--ksrat-paper));}
.consult .err{font-family:var(--display);font-size:.84rem;font-weight:500;color:var(--accent);margin-top:-.5rem;}
.field input[aria-invalid=true]{border-color:var(--accent);}
.field input:not([type=radio]),.field textarea{
  font:inherit;font-size:1.05rem;color:var(--ink);background:var(--ksrat-paper);
  border:1px solid var(--ksrat-hairline);border-radius:var(--radius);padding:.8rem .9rem;width:100%;
}
.field textarea{min-height:5.5rem;resize:vertical;}
.field input:focus,.field textarea:focus{outline:2px solid var(--ink);outline-offset:0;border-color:var(--ink);}
fieldset.field{border:0;margin:0;padding:0;}
.choices{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.45rem;}
.choice{position:relative;}
.choice input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer;}
.choice span{
  display:inline-block;font-family:var(--display);font-size:.9rem;padding:.6rem .95rem;border-radius:var(--radius);
  border:1px solid var(--ksrat-hairline);background:var(--ksrat-paper);cursor:pointer;transition:background .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease);
}
.choice input:checked + span{background:var(--ink);color:var(--bg);border-color:var(--ink);}
.choice input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px;}
.consult .btn{width:100%;}
.consult .fine{font-family:var(--display);font-size:.78rem;color:var(--ksrat-slate);text-align:center;margin-inline:auto;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-copy{grid-column:1 / span 8;}
  .hero-mark{grid-column:9 / span 4;}
  .name-head{grid-column:1 / -1;}
  .name-line{grid-column:1 / span 8;}
  .split-head{grid-column:1 / -1;}
  .split-body,.split-body.wide{grid-column:1 / span 10;}
  .final-mark{grid-column:1 / span 4;}
  .final-in{grid-column:6 / span 7;}
}
@media (max-width:760px){
  .hero-copy{grid-column:1 / -1;order:2;}
  .hero-mark,.hero-mark.small{grid-column:1 / -1;order:1;justify-self:end;width:clamp(130px,42vw,220px);margin-bottom:-.5rem;}
  .name-line{grid-column:1 / -1;}
  .layers{grid-template-columns:1fr;row-gap:2rem;}
  .split-body,.split-body.wide{grid-column:1 / -1;}
  .path{grid-column:1 / -1;}
  .row{grid-template-columns:1fr;}
  .final-mark{display:none;}
  .final-in{grid-column:1 / -1;}
  .head-nav .nav-link{display:none;}
  .brand .deva{display:none;}
  .foot-nav{grid-template-columns:1fr 1fr;gap:.8rem 2rem;}
}
@media (max-width:540px){
  .field-row{grid-template-columns:1fr;}
}
@media (max-width:380px){
  .btn.sm{font-size:.8rem;padding:.58rem .8rem;}
  .brand .word{font-size:1.15rem;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition:none!important;animation:none!important;}
}