/* Rebuttal — rebuttal.digital
   Monochrome by design: the palette below is the app's own. No colour anywhere. */

@font-face{font-family:"Bricolage Grotesque";src:url("/assets/fonts/bricolage-grotesque.woff2") format("woff2");font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:"Geist";src:url("/assets/fonts/geist.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"Geist Mono";src:url("/assets/fonts/geist-mono.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}

:root{
  --ink:#0A0A0A;
  --ink-2:#1A1A1A;
  --grey:#757575;
  --mute:#BDBDBD;
  --line:#E0E0E0;
  --surface:#F5F5F5;
  --dot:#E4E4E4;
  --paper:#FFFFFF;

  --display:"Bricolage Grotesque","Geist",system-ui,sans-serif;
  --sans:"Geist",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"Geist Mono",ui-monospace,"SF Mono",Menlo,monospace;

  --wrap:1200px;
  --gutter:clamp(20px,4.4vw,48px);
  --ease:cubic-bezier(.2,.7,.1,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.55 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
[hidden]{display:none!important}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,p,ol,ul,dl,dd,figure{margin:0}
ol,ul{padding:0;list-style:none}
::selection{background:var(--ink);color:var(--paper)}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:4px}
.on-dark :focus-visible{outline-color:var(--paper)}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.dots{background-color:var(--surface);background-image:radial-gradient(var(--dot) 1.5px,transparent 1.6px);background-size:25px 25px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--grey)}

/* ───────── Buttons ───────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:52px;padding:0 28px;border-radius:999px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);font-weight:500;font-size:16px;text-decoration:none;cursor:pointer;transition:transform .2s var(--ease),background .2s,color .2s,border-color .2s,opacity .2s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:none}
.btn[disabled]{background:var(--surface);border-color:var(--line);color:var(--mute);cursor:not-allowed;transform:none}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}

.stores{display:flex;flex-wrap:wrap;gap:12px}
.store{display:inline-flex;flex-direction:column;justify-content:center;flex:0 1 176px;min-width:148px;height:60px;padding:0 24px;border-radius:999px;background:var(--ink);color:var(--paper);text-decoration:none;line-height:1.15;transition:transform .2s var(--ease)}
.store__k{font-family:var(--mono);font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;opacity:.6}
.store__n{font-weight:600;font-size:18px;letter-spacing:-.01em}
.store[href]:hover{transform:translateY(-2px)}
.store:not([href]){background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink);cursor:default}
.on-dark .store{background:var(--paper);color:var(--ink)}
.on-dark .store:not([href]){background:transparent;color:var(--paper);box-shadow:inset 0 0 0 1px rgba(255,255,255,.45)}

/* ───────── Nav ───────── */
.nav{position:sticky;top:0;z-index:50;background:rgba(245,245,245,.82);-webkit-backdrop-filter:saturate(1.2) blur(14px);backdrop-filter:saturate(1.2) blur(14px);border-bottom:1px solid transparent;transition:border-color .25s,background .25s}
.nav.is-stuck{border-color:var(--line);background:rgba(255,255,255,.86)}
.nav__in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-weight:700;font-size:21px;letter-spacing:-.03em}
.brand svg{width:34px;height:26px}
.mark__a{fill:currentColor}
.mark__b{fill:none;stroke:currentColor;stroke-width:56}
.nav__links{display:flex;align-items:center;gap:30px;font-size:15px}
.nav__links a{text-decoration:none;color:var(--grey);transition:color .2s}
.nav__links a:hover,.nav__links a[aria-current]{color:var(--ink)}
.nav__right{display:flex;align-items:center;gap:22px}
.nav__contact{font-size:15px;color:var(--grey);text-decoration:none}
.nav__contact:hover{color:var(--ink)}
@media (max-width:900px){.nav__links{display:none}}
@media (min-width:901px){.nav__contact{display:none}}

/* ───────── Hero ───────── */
.hero{padding:clamp(40px,7vw,96px) 0 clamp(64px,9vw,120px);border-bottom:1px solid var(--line);margin-top:-69px;padding-top:calc(69px + clamp(40px,7vw,96px))}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:clamp(32px,5vw,80px);align-items:center}
.hero h1{font-family:var(--display);font-weight:700;font-size:clamp(54px,8.6vw,128px);line-height:.9;letter-spacing:-.042em;margin:22px 0 28px}
.hero h1 span{display:block;color:var(--grey)}
.lede{font-size:clamp(18px,1.55vw,21px);line-height:1.45;max-width:30em;color:var(--ink-2)}
.hero .stores{margin-top:36px}
.hero__fine{margin-top:16px}
@media (max-width:940px){.hero__grid{grid-template-columns:1fr}}

/* Spar demo */
.spar{background:var(--paper);border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:0 40px 80px -48px rgba(10,10,10,.35);max-width:480px;width:100%;justify-self:end}
@media (max-width:940px){.spar{justify-self:start;max-width:560px}}
.spar__top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}
.tag{display:inline-flex;flex:none;white-space:nowrap;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--ink);color:var(--paper);font-size:13px;font-weight:500}
.spar__event{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;padding:16px 18px;border-radius:16px;background:var(--surface)}
.spar__q{font-weight:600;font-size:17px;line-height:1.25;letter-spacing:-.01em}
.spar__cat{font-size:13px;color:var(--grey);margin-top:4px}
.spar__cons{text-align:right;flex:none}
.spar__cons span{display:block;font-size:11px;color:var(--grey)}
.spar__cons b{font-family:var(--mono);font-weight:600;font-size:17px;color:var(--mute);transition:color .4s}
.spar__cons.is-open b{color:var(--ink)}
.spar__chat{height:236px;margin:14px -6px 6px;padding:6px;overflow-y:auto;display:flex;flex-direction:column;gap:8px;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.spar__hint{margin:auto;font-size:14px;color:var(--mute);text-align:center}
.msg{max-width:86%;padding:11px 15px;border-radius:18px;font-size:14.5px;line-height:1.42;animation:pop .45s var(--ease) both}
.msg--ai{align-self:flex-start;background:var(--ink-2);color:var(--paper);border-bottom-left-radius:6px;transform-origin:0 100%}
.msg--you{align-self:flex-end;background:var(--surface);border-bottom-right-radius:6px;transform-origin:100% 100%}
.msg--sys{align-self:stretch;max-width:none;background:none;border:1px dashed var(--line);font-size:13.5px;color:var(--ink-2)}
.msg--think{display:inline-flex;align-items:center;gap:10px;color:rgba(255,255,255,.75);font-size:13.5px}
.dotsx{display:inline-flex;gap:4px}
.dotsx i{width:5px;height:5px;border-radius:50%;background:currentColor;animation:blink 1s infinite}
.dotsx i:nth-child(2){animation-delay:.15s}.dotsx i:nth-child(3){animation-delay:.3s}
.verdict{display:flex;align-items:baseline;gap:10px;margin-bottom:4px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--grey)}
.verdict b{font-family:var(--sans);font-size:17px;letter-spacing:-.01em;text-transform:none;color:var(--ink);font-weight:700}
.verdict b.is-down{font-weight:400;color:var(--grey)}
.spar__label{display:block;font-size:13px;color:var(--grey)}
.spar__val{display:block;font-weight:700;font-size:26px;letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums}
.spar__actions{display:flex;gap:10px;margin-top:6px}
.spar__actions .btn{flex:1}
.spar__actions .btn--ghost{flex:1}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.96)}to{opacity:1;transform:none}}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}

/* The app's slider: thick track, vertical bar for a thumb */
.range{-webkit-appearance:none;appearance:none;display:block;width:100%;height:44px;margin:2px 0;background:transparent;cursor:ew-resize;--p:50%}
.range::-webkit-slider-runnable-track{height:14px;border-radius:7px;background:linear-gradient(to right,var(--ink) var(--p),var(--mute) var(--p))}
.range::-webkit-slider-thumb{-webkit-appearance:none;width:5px;height:42px;margin-top:-14px;border-radius:3px;background:var(--ink)}
.range::-moz-range-track{height:14px;border-radius:7px;background:var(--mute)}
.range::-moz-range-progress{height:14px;border-radius:7px;background:var(--ink)}
.range::-moz-range-thumb{width:5px;height:42px;border:0;border-radius:3px;background:var(--ink)}
.range:disabled{cursor:default;opacity:.55}

/* ───────── Sections & the exchange ───────── */
.sec{padding:clamp(72px,10vw,150px) 0}
.sec--line{border-top:1px solid var(--line)}
.sec--dark{background:var(--ink);color:var(--paper)}
.sec--dark .mono{color:#8C8C8C}

.exchange{display:flex;flex-direction:column;gap:14px;max-width:1040px;margin-bottom:clamp(44px,6vw,84px)}
.say{display:flex;flex-direction:column;gap:8px;max-width:min(760px,88%)}
.say--you{align-self:flex-end;align-items:flex-end}
.say--ai{align-self:flex-start;align-items:flex-start}
.bubble{font-family:var(--display);font-weight:500;letter-spacing:-.028em;line-height:1.08;border-radius:34px;padding:.62em .86em}
.say--you .bubble{font-size:clamp(20px,2.3vw,32px);background:var(--surface);color:var(--ink-2);border-bottom-right-radius:8px}
.say--ai .bubble{font-size:clamp(30px,4.6vw,68px);background:var(--ink-2);color:var(--paper);border-bottom-left-radius:10px;font-weight:600}
.sec--dark .say--ai .bubble{background:var(--ink-2);box-shadow:inset 0 0 0 1px #333}
.sec--dark .say--you .bubble{background:var(--surface);color:var(--ink)}

/* ───────── How it works ───────── */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(16px,2.4vw,36px);align-items:start}
.step:nth-child(even){margin-top:64px}
.step__n{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--grey)}
.step h3{font-family:var(--display);font-weight:600;font-size:clamp(20px,1.9vw,26px);letter-spacing:-.03em;line-height:1.1;margin:8px 0 8px}
.step p{font-size:15px;line-height:1.5;color:var(--grey);min-height:6em}
.phone{margin-top:22px;padding:7px;border-radius:34px;background:var(--ink);box-shadow:0 44px 70px -44px rgba(10,10,10,.55)}
.phone img{border-radius:27px;width:100%;aspect-ratio:640/1428;background:var(--surface)}
@media (max-width:860px){
  .steps{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;margin-inline:calc(var(--gutter)*-1);padding:0 var(--gutter) 64px;margin-bottom:-36px;scrollbar-width:none}
  .steps::-webkit-scrollbar{display:none}
  .step{flex:0 0 min(68vw,280px);scroll-snap-align:center}
  .step:nth-child(even){margin-top:0}
}

/* ───────── Ground rules ───────── */
.feed{display:grid;grid-template-columns:minmax(0,1fr) 72px minmax(0,1fr);align-items:center;border:1px solid #2B2B2B;border-radius:28px;padding:clamp(22px,3vw,40px)}
.feed__h{margin-bottom:18px}
.feed dl{display:grid;grid-template-columns:1fr auto;font-family:var(--mono);font-size:14px}
.feed dt,.feed dd{padding:11px 0;border-top:1px solid #242424}
.feed dt{color:#8C8C8C}
.feed dd{text-align:right;font-weight:500}
.feed__arrow{justify-self:center;width:28px;height:28px;color:#5A5A5A}
.feed__out .msg{max-width:none;font-size:clamp(17px,1.5vw,20px);line-height:1.4;padding:18px 22px;border-radius:22px;border-bottom-left-radius:6px;background:var(--paper);color:var(--ink);animation:none}
.feed__note{margin-top:14px}
.rules{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:clamp(40px,5vw,72px);border-top:1px solid #2B2B2B}
.rule{padding:26px 26px 0 0}
.rule + .rule{padding-left:26px;border-left:1px solid #2B2B2B}
.rule h3{font-family:var(--display);font-weight:600;font-size:22px;letter-spacing:-.03em;margin:10px 0 8px}
.rule p{font-size:15px;line-height:1.5;color:#9C9C9C}
@media (max-width:900px){
  .feed{grid-template-columns:1fr}
  .feed__arrow{transform:rotate(90deg);margin:18px auto}
  .rules{grid-template-columns:1fr 1fr}
  .rule{padding:24px 20px 24px 0}
  .rule + .rule{padding-left:0;border-left:0}
  .rule:nth-child(even){padding-left:20px;border-left:1px solid #2B2B2B}
  .rule:nth-child(n+3){border-top:1px solid #2B2B2B}
}
@media (max-width:520px){
  .rules{grid-template-columns:1fr}
  .rule:nth-child(even){padding-left:0;border-left:0}
  .rule + .rule{border-top:1px solid #2B2B2B}
}

/* ───────── Sparring Impact ───────── */
.impact{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(32px,5vw,80px);align-items:start}
.impact__copy p{max-width:26em;color:var(--ink-2)}
.formula{margin-top:28px;border-top:1px solid var(--line)}
.formula div{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;padding:16px 0;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:13.5px;line-height:1.5}
.formula dt{color:var(--grey)}
.formula dd{color:var(--ink)}
.dash{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.card{border-radius:22px;background:var(--surface);padding:22px}
.card h3{font-size:15px;font-weight:600;letter-spacing:-.01em;margin-bottom:14px}
.card--hero{grid-column:1/-1;background:var(--ink);color:var(--paper);padding:26px 28px}
.kpi{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}
.kpi__l{font-size:14px;color:#A8A8A8}
.kpi__v{font-family:var(--display);font-weight:700;font-size:clamp(46px,6vw,76px);letter-spacing:-.05em;line-height:1;margin-top:6px}
.kpi__v small{font-size:.38em;letter-spacing:-.02em;font-weight:600;margin-left:.2em}
.kpi svg{width:150px;height:60px;flex:none;margin-top:6px}
.minis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px;padding-top:18px;border-top:1px solid #2B2B2B}
.minis b{display:block;font-size:20px;font-weight:600;letter-spacing:-.02em}
.minis span{font-size:13px;color:#A8A8A8}
.legend{display:flex;gap:18px;margin-top:12px;font-size:12.5px;color:var(--grey)}
.legend i{display:inline-block;width:18px;height:0;border-top:2px solid var(--ink);vertical-align:middle;margin-right:6px}
.legend i.dash-l{border-top:2px dashed var(--mute)}
.bars{display:grid;gap:9px}
.bars li{display:grid;grid-template-columns:86px 1fr 42px;align-items:center;gap:10px;font-size:13px}
.bars span{color:var(--grey)}
.bars i{display:block;height:10px;border-radius:5px;background:var(--ink);width:calc(var(--w)*1%);transform-origin:0 50%}
.bars b{font-family:var(--mono);font-weight:500;font-size:12px;text-align:right}
.dash__cap{grid-column:1/-1;margin-top:4px}
@media (max-width:900px){.impact{grid-template-columns:1fr}}
@media (max-width:560px){.dash{grid-template-columns:1fr}.kpi svg{width:96px}}

/* ───────── After the lock ───────── */
.trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.pillar{border-radius:26px;background:var(--surface);overflow:hidden;display:flex;flex-direction:column}
.pillar img{width:100%;aspect-ratio:1/0.84;object-fit:cover;-webkit-mask-image:linear-gradient(#000 78%,transparent);mask-image:linear-gradient(#000 78%,transparent)}
.pillar__t{padding:4px 26px 30px}
.pillar h3{font-family:var(--display);font-weight:600;font-size:clamp(22px,2vw,28px);letter-spacing:-.03em;line-height:1.1;margin-bottom:10px}
.pillar p{font-size:15.5px;line-height:1.5;color:var(--grey)}
.extras{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:clamp(36px,4vw,56px);border-top:1px solid var(--line)}
.extras div{padding:22px 22px 0 0}
.extras div + div{padding-left:22px;border-left:1px solid var(--line)}
.extras dt{font-weight:600;font-size:16px;letter-spacing:-.01em}
.extras dd{font-size:14.5px;line-height:1.5;color:var(--grey);margin-top:4px}
@media (max-width:900px){
  .trio{grid-template-columns:1fr}
  .pillar{flex-direction:row;align-items:center}
  .pillar img{width:38%;aspect-ratio:1/1}
  .pillar__t{padding:22px 22px 22px 6px}
  .extras{grid-template-columns:1fr 1fr}
  .extras div{padding:20px 16px 20px 0}
  .extras div + div{padding-left:0;border-left:0}
  .extras div:nth-child(even){padding-left:16px;border-left:1px solid var(--line)}
  .extras div:nth-child(n+3){border-top:1px solid var(--line)}
}
@media (max-width:520px){.pillar{flex-direction:column;align-items:stretch}.pillar img{width:100%;aspect-ratio:1/0.84}.pillar__t{padding:4px 22px 26px}}

/* ───────── FAQ ───────── */
.faq{max-width:860px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:24px 0;cursor:pointer;list-style:none;font-family:var(--display);font-weight:600;font-size:clamp(19px,1.8vw,24px);letter-spacing:-.025em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:0;height:0;border-left:7px solid transparent;border-right:7px solid transparent;border-top:10px solid var(--ink);transition:transform .25s var(--ease)}
.faq details[open] summary::after{transform:rotate(180deg)}
.faq p{padding:0 48px 26px 0;max-width:42em;color:var(--grey)}

/* ───────── Get the app ───────── */
.get{padding:clamp(80px,11vw,160px) 0 clamp(64px,8vw,110px);text-align:center}
.get__mark{width:clamp(150px,20vw,240px);margin:0 auto clamp(32px,4vw,52px);overflow:visible;color:var(--paper)}
.get__mark .mark__b{fill:var(--ink)}
.get__mark .mark__b{transform:translateX(250px);transition:transform 1.4s var(--ease)}
.get.is-in .get__mark .mark__b{transform:none}
.get h2{font-family:var(--display);font-weight:700;font-size:clamp(40px,6.6vw,96px);letter-spacing:-.042em;line-height:.94;max-width:11em;margin-inline:auto}
.get h2 span{display:block;color:#8C8C8C}
.get .stores{justify-content:center;margin-top:40px}
.get .store{flex-grow:0}
.get .mono{margin-top:18px}

/* ───────── Footer ───────── */
.foot{background:var(--ink);color:var(--paper);border-top:1px solid #242424;padding:36px 0 44px;font-size:14.5px}
.foot__in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px 40px;align-items:flex-start}
.foot nav{display:flex;flex-wrap:wrap;gap:10px 28px}
.foot nav a{color:#B4B4B4;text-decoration:none}
.foot nav a:hover{color:var(--paper)}
.foot__fine{flex-basis:100%;color:#7A7A7A;font-size:13px;line-height:1.55;padding-top:22px;border-top:1px solid #242424}

/* ───────── Documents (privacy, terms) ───────── */
.dochead{margin-top:-69px;padding:calc(69px + clamp(44px,6vw,84px)) 0 clamp(36px,5vw,60px);border-bottom:1px solid var(--line)}
.dochead h1{font-family:var(--display);font-weight:700;font-size:clamp(42px,6.4vw,88px);letter-spacing:-.05em;line-height:.94;margin:16px 0 22px}
.dochead__meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;background:var(--paper);padding:3px}
.seg a,.seg label{display:inline-flex;align-items:center;height:36px;padding:0 20px;border-radius:999px;font-size:14.5px;text-decoration:none;color:var(--grey);cursor:pointer;transition:color .2s,background .2s}
.seg a[aria-current],.seg input:checked + label{background:var(--ink);color:var(--paper)}
.seg input{position:absolute;opacity:0;pointer-events:none}
.field .seg{justify-self:start;width:max-content}
.seg input:focus-visible + label{outline:2px solid var(--ink);outline-offset:2px}
.doc{display:grid;grid-template-columns:230px minmax(0,720px);gap:clamp(32px,6vw,96px);padding-block:clamp(40px,6vw,80px) clamp(72px,9vw,130px)}
.toc{position:sticky;top:96px;align-self:start;font-size:14px;max-height:calc(100vh - 120px);overflow:auto}
.toc ol{display:grid;gap:9px;margin-top:14px;counter-reset:t}
.toc a{color:var(--grey);text-decoration:none;display:grid;grid-template-columns:26px 1fr;line-height:1.35}
.toc a::before{counter-increment:t;content:counter(t,decimal-leading-zero);font-family:var(--mono);font-size:11px;padding-top:2px;color:var(--mute)}
.toc a:hover,.toc a.is-on{color:var(--ink)}
.prose{font-size:16.5px;line-height:1.65;color:var(--ink-2)}
.prose > p:first-child{font-size:20px;line-height:1.5;color:var(--ink);letter-spacing:-.01em}
.prose h2{font-family:var(--display);font-weight:600;font-size:clamp(24px,2.4vw,30px);letter-spacing:-.03em;line-height:1.15;color:var(--ink);margin:56px 0 14px;scroll-margin-top:96px}
.prose h3{font-size:17px;font-weight:600;color:var(--ink);margin:26px 0 6px}
.prose p + p,.prose ul + p,.prose p + ul{margin-top:14px}
.prose ul{display:grid;gap:8px;padding-left:22px}
.prose ul li{position:relative}
.prose ul li::before{content:"";position:absolute;left:-20px;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--ink)}
.prose a{text-underline-offset:3px;text-decoration-thickness:1px}
.prose strong{font-weight:600;color:var(--ink)}
.brief{display:grid;gap:0;margin:30px 0 0;border:1px solid var(--line);border-radius:22px;padding:6px 24px;background:var(--surface)}
.brief li{padding:14px 0;border-top:1px solid var(--line);font-size:16px;color:var(--ink)}
.brief li:first-child{border-top:0}
.prose ul.brief{padding-left:24px}
.prose ul.brief li::before{display:none}
@media (max-width:900px){.doc{grid-template-columns:1fr}.toc{display:none}}

/* ───────── Contact ───────── */
.contact{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(32px,6vw,96px);align-items:start;padding-block:clamp(40px,6vw,80px) clamp(72px,9vw,130px)}
.contact__side p{max-width:24em;color:var(--grey)}
.contact__side p + p{margin-top:14px}
.contact__side a{color:var(--ink);text-underline-offset:3px}
.form{display:grid;gap:22px}
.field{display:grid;gap:8px}
.field > span,.field > legend{font-size:13px;color:var(--grey);padding:0}
fieldset.field{border:0;margin:0;padding:0;min-width:0}
fieldset.field > legend{margin-bottom:8px}
.input{width:100%;border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:15px 18px;font-size:16px;transition:border-color .2s,background .2s;outline:0}
.input::placeholder{color:var(--mute)}
.input:focus{border-color:var(--ink);background:var(--paper)}
textarea.input{min-height:170px;resize:vertical;line-height:1.5}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips label{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;border:1px solid var(--line);font-size:14.5px;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.chips input:checked + label{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.chips input:focus-visible + label{outline:2px solid var(--ink);outline-offset:2px}
.form__foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px}
.form__status{font-size:14.5px;color:var(--grey)}
.form__done{display:grid;gap:10px;justify-items:start}
.form__done .msg{font-size:17px;padding:16px 20px;border-radius:22px;border-bottom-left-radius:6px;max-width:28em}
.hp{position:absolute!important;left:-9999px;opacity:0}
@media (max-width:900px){.contact{grid-template-columns:1fr}}

/* ───────── 404 ───────── */
.lost{min-height:calc(100vh - 69px);display:grid;place-items:center;text-align:center;margin-top:-69px;padding:120px var(--gutter)}
.lost .exchange{margin:0 auto 36px;width:min(640px,100%);text-align:left}
.lost .say--you .bubble{background:var(--paper);box-shadow:inset 0 0 0 1px var(--line)}

/* ───────── Motion ───────── */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:var(--d,0s)}
.js .reveal.is-in{opacity:1;transform:none}
.js .say .bubble{opacity:0;transform:translateY(14px) scale(.96);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.js .say--you .bubble{transform-origin:100% 100%}
.js .say--ai .bubble{transform-origin:0 100%;transition-delay:.38s}
.js .say .mono{opacity:0;transition:opacity .5s}
.js .say--ai .mono{transition-delay:.38s}
.js .exchange.is-in .bubble{opacity:1;transform:none}
.js .exchange.is-in .mono{opacity:1}
.js .bars i{transform:scaleX(0);transition:transform .9s var(--ease);transition-delay:calc(var(--i)*70ms)}
.js .is-in .bars i{transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .reveal,.js .say .bubble,.js .say .mono,.js .bars i,.get__mark .mark__b{opacity:1;transform:none}
}