/* =========================================================================
   Domino Solutions — landing page
   Visual system: printed-circuit routing (orthogonal traces, vias, notched
   pads) in the brand gradient #2563EB → #9333EA → #7C3AED.
   ========================================================================= */

/* ---------- faces ---------- */
@font-face{font-family:Chivo;src:url("assets/fonts/chivo-700.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:Chivo;src:url("assets/fonts/chivo-900.woff2") format("woff2");font-weight:900;font-style:normal;font-display:swap}
@font-face{font-family:"Public Sans";src:url("assets/fonts/publicsans-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Public Sans";src:url("assets/fonts/publicsans-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url("assets/fonts/jetbrainsmono-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}

/* ---------- tokens: light is the base, dark overrides ---------- */
:root{
  --blue:#2563EB;
  --mid:#9333EA;
  --violet:#7C3AED;
  --brand:linear-gradient(100deg,var(--blue) 0%,var(--mid) 52%,var(--violet) 100%);

  --bg:#F6F5FA;
  --bg-alt:#EFEDF7;
  --raised:#FFFFFF;
  --fg:#14121F;
  --fg-soft:#4B4864;
  --fg-faint:#7B778F;
  --line:#DEDAEC;
  --line-2:#C9C3E0;
  --trace:#B9B2D6;
  --accent:var(--violet);
  --accent-ink:#5B21B6;
  --ring:rgba(124,58,237,.45);
  --pad-shadow:0 1px 2px rgba(20,18,31,.05),0 12px 30px -18px rgba(37,42,90,.30);
  --board-line:#D7D1E9;
  --board-glow:.55;
  --sel:rgba(147,51,234,.18);

  --w:1220px;
  --gut:clamp(20px,5vw,60px);
  --rail:0px;

  --t-xs:.75rem; --t-sm:.875rem; --t-md:1rem; --t-lg:1.125rem;
  --t-xl:1.375rem; --t-2xl:clamp(1.65rem,1.1rem + 2.1vw,2.5rem);
  --t-3xl:clamp(2.2rem,1.2rem + 4.2vw,3.6rem);
  --t-4xl:clamp(2.6rem,1rem + 7.2vw,5.3rem);
}

@media (prefers-color-scheme:dark){
  :root{
    --bg:#0B0A15;
    --bg-alt:#100E1D;
    --raised:#161329;
    --fg:#F2F0FA;
    --fg-soft:#B4AECC;
    --fg-faint:#837C9E;
    --line:#241F3B;
    --line-2:#352D55;
    --trace:#3A3260;
    --accent:#A78BFA;
    --accent-ink:#C4B5FD;
    --ring:rgba(167,139,250,.55);
    --pad-shadow:0 24px 60px -34px rgba(0,0,0,.9);
    --board-line:#2A2447;
    --board-glow:1;
    --sel:rgba(167,139,250,.28);
  }
}

:root[data-theme="dark"]{
  --bg:#0B0A15; --bg-alt:#100E1D; --raised:#161329;
  --fg:#F2F0FA; --fg-soft:#B4AECC; --fg-faint:#837C9E;
  --line:#241F3B; --line-2:#352D55; --trace:#3A3260;
  --accent:#A78BFA; --accent-ink:#C4B5FD; --ring:rgba(167,139,250,.55);
  --pad-shadow:0 24px 60px -34px rgba(0,0,0,.9);
  --board-line:#2A2447; --board-glow:1; --sel:rgba(167,139,250,.28);
}
:root[data-theme="light"]{
  --bg:#F6F5FA; --bg-alt:#EFEDF7; --raised:#FFFFFF;
  --fg:#14121F; --fg-soft:#4B4864; --fg-faint:#7B778F;
  --line:#DEDAEC; --line-2:#C9C3E0; --trace:#B9B2D6;
  --accent:#7C3AED; --accent-ink:#5B21B6; --ring:rgba(124,58,237,.45);
  --pad-shadow:0 1px 2px rgba(20,18,31,.05),0 12px 30px -18px rgba(37,42,90,.30);
  --board-line:#D7D1E9; --board-glow:.55; --sel:rgba(147,51,234,.18);
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
/* keep in-page anchors clear of the sticky header */
section[id],main [id]{scroll-margin-top:96px}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font:400 var(--t-md)/1.65 "Public Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--sel)}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:Chivo,ui-sans-serif,system-ui,sans-serif;font-weight:900;margin:0;line-height:1.04;letter-spacing:-.025em;text-wrap:balance}
p{margin:0}
.wrap{width:100%;max-width:var(--w);margin-inline:auto;padding-inline:var(--gut)}

.skip{position:absolute;left:-9999px;top:0;z-index:99;background:var(--accent);color:#fff;padding:.7rem 1.1rem}
.skip:focus{left:.5rem;top:.5rem}

:where(a,button,input,textarea,summary):focus-visible{
  outline:2px solid var(--ring);outline-offset:3px;border-radius:2px
}

/* ---------- mono utility type ---------- */
.eyebrow{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-weight:500;
  font-size:var(--t-xs);letter-spacing:.16em;text-transform:uppercase;
  color:var(--fg-faint);display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .6rem;margin:0;
}
.eyebrow i{font-style:normal;color:var(--accent);opacity:.7}

/* the "via" dot that ties a section head to the rail */
.node{
  position:relative;z-index:3;
  width:9px;height:9px;flex:0 0 9px;border-radius:50%;
  background:var(--bg);border:2px solid var(--trace);
  transition:border-color .5s ease,box-shadow .5s ease,background .5s ease;
}
.reveal.in .node,.sect__head.in .node{
  border-color:var(--accent);background:var(--accent);
  box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent);
}

/* ---------- buttons ---------- */
.btn{
  --pad:.72rem 1.15rem;
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:var(--pad);font:600 var(--t-sm)/1 "Public Sans",sans-serif;
  letter-spacing:.005em;text-decoration:none;cursor:pointer;border:0;
  clip-path:polygon(0 0,calc(100% - 9px) 0,100% 9px,100% 100%,9px 100%,0 calc(100% - 9px));
  transition:transform .18s ease,filter .18s ease,background-color .18s ease,color .18s ease;
}
.btn--lg{--pad:1.02rem 1.7rem;font-size:var(--t-md)}
.btn--solid{background-image:var(--brand);color:#fff}
.btn--solid:hover{filter:brightness(1.12) saturate(1.05);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1px var(--line-2)}
.btn--ghost:hover{box-shadow:inset 0 0 0 1px var(--accent);color:var(--accent-ink);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}

/* =========================================================================
   NAV
   ========================================================================= */
.nav{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease,background-color .3s ease;
}
.nav.stuck{border-bottom-color:var(--line)}
.nav__in{display:flex;align-items:center;gap:1.5rem;height:74px}
.nav__logo{display:block;flex:0 0 auto;margin-right:auto}
.logo{height:34px;width:auto}
.logo--dark{display:none}
@media (prefers-color-scheme:dark){.logo--dark{display:block}.logo--light{display:none}}
:root[data-theme="dark"] .logo--dark{display:block}
:root[data-theme="dark"] .logo--light{display:none}
:root[data-theme="light"] .logo--dark{display:none}
:root[data-theme="light"] .logo--light{display:block}

.nav__links{display:none;gap:2rem}
.nav__links a{
  font-size:var(--t-sm);font-weight:600;color:var(--fg-soft);text-decoration:none;
  position:relative;padding-block:.4rem;transition:color .18s ease;
}
.nav__links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;
  background-image:var(--brand);transition:right .28s ease;
}
.nav__links a:hover{color:var(--fg)}
.nav__links a:hover::after{right:0}

.nav__act{display:flex;align-items:center;gap:.65rem}
.nav__cta{display:none}
@media (min-width:900px){
  .nav__links{display:flex}
  .nav__cta{display:inline-flex}
}

.themebtn{
  width:38px;height:38px;display:grid;place-items:center;cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--fg-soft);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
  transition:color .18s ease,border-color .18s ease;
}
.themebtn:hover{color:var(--accent);border-color:var(--line-2)}
.themebtn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round}
.themebtn__moon{display:none}
@media (prefers-color-scheme:dark){.themebtn__sun{display:none}.themebtn__moon{display:block}}
:root[data-theme="dark"] .themebtn__sun{display:none}
:root[data-theme="dark"] .themebtn__moon{display:block}
:root[data-theme="light"] .themebtn__sun{display:block}
:root[data-theme="light"] .themebtn__moon{display:none}

.burger{
  width:38px;height:38px;display:grid;place-content:center;gap:5px;cursor:pointer;
  background:transparent;border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
}
.burger span{display:block;width:15px;height:1.6px;background:var(--fg);transition:transform .22s ease,opacity .22s ease}
.burger[aria-expanded="true"] span:first-child{transform:translateY(3.3px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-3.3px) rotate(-45deg)}
@media (min-width:900px){.burger{display:none}}

.nav__menu{display:flex;flex-direction:column;border-top:1px solid var(--line);padding:.5rem var(--gut) 1.1rem}
.nav__menu[hidden]{display:none}
.nav__menu a{padding:.85rem 0;font-weight:600;text-decoration:none;border-bottom:1px solid var(--line)}
.nav__menu a:last-child{border-bottom:0;color:var(--accent-ink)}
@media (min-width:900px){.nav__menu{display:none!important}}

/* =========================================================================
   RAIL — the trace that runs the length of the page
   ========================================================================= */
main{position:relative}
.rail{display:none}
@media (min-width:1180px){
  :root{--rail:74px}
  .rail{
    display:block;position:absolute;top:0;bottom:0;width:1px;z-index:2;
    left:max(var(--gut),calc(50vw - var(--w)/2 + var(--gut)));
    background:var(--line);
  }
  .rail__charge{
    position:absolute;inset:0 auto auto 0;width:1px;height:0;
    background-image:linear-gradient(180deg,var(--blue),var(--mid),var(--violet));
    box-shadow:0 0 10px 0 color-mix(in srgb,var(--accent) 55%,transparent);
  }
  /* the travelling tip, so the trace visibly advances as you read down */
  .rail__head{
    position:absolute;left:-2.5px;top:0;width:6px;height:6px;border-radius:50%;
    background:var(--violet);opacity:0;
    box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 20%,transparent),
               0 0 12px 2px color-mix(in srgb,var(--accent) 60%,transparent);
    transition:opacity .3s ease;
  }
  .rail__head.on{opacity:1}
  .wrap{padding-left:calc(var(--gut) + var(--rail))}
  /* pull the via dots out onto the rail itself */
  .sect__head .eyebrow,.contact__copy .eyebrow{margin-left:calc(-1 * var(--rail) - 4px)}
  .sect__head .eyebrow > :not(.node),.contact__copy .eyebrow > :not(.node){margin-left:0}
  .node{margin-right:calc(var(--rail) - 9px + 4px - .6rem)}
}

/* =========================================================================
   HERO
   ========================================================================= */
.hero{position:relative;isolation:isolate;padding-block:clamp(4rem,9vw,8.5rem) clamp(3.5rem,7vw,6rem);overflow:hidden}
.hero__board{position:absolute;inset:0;width:100%;height:100%;z-index:-2}
.hero__wash{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(60% 50% at 12% 0%,color-mix(in srgb,var(--blue) 12%,transparent),transparent 70%),
    radial-gradient(55% 55% at 88% 20%,color-mix(in srgb,var(--mid) 12%,transparent),transparent 70%),
    linear-gradient(180deg,transparent 55%,var(--bg) 100%);
}
.hero__in{display:flex;flex-direction:column;align-items:flex-start;gap:1.6rem}
.hero__h1{font-size:var(--t-4xl);max-width:15ch}
.hero__h1 em{
  font-style:normal;
  background-image:var(--brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{font-size:clamp(1.02rem,.95rem + .45vw,1.28rem);color:var(--fg-soft);max-width:56ch;line-height:1.6}
.hero__cta{display:flex;flex-wrap:wrap;gap:.8rem}
@media (max-width:479px){
  .hero__cta{width:100%}
  .hero__cta .btn{flex:1 1 100%}
  /* the board competes with the copy at phone widths — let the type win */
  .hero__board{opacity:.45}
}

.hero__strip{
  list-style:none;margin:1.2rem 0 0;padding:1.1rem 0 0;display:flex;flex-wrap:wrap;
  gap:.55rem 1.5rem;border-top:1px solid var(--line);width:100%;
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.1em;text-transform:uppercase;color:var(--fg-faint);
}
.hero__strip li{display:flex;align-items:center;gap:.7rem}
.hero__strip li::before{content:"";width:4px;height:4px;background:var(--accent);opacity:.75}

/* =========================================================================
   SECTIONS
   ========================================================================= */
.sect{position:relative;padding-block:clamp(4rem,8vw,7.5rem)}
.sect--alt{background:var(--bg-alt)}
.sect--alt::before,.sect--alt::after{content:"";position:absolute;left:0;right:0;height:1px;background:var(--line)}
.sect--alt::before{top:0}
.sect--alt::after{bottom:0}

.sect__head{display:flex;flex-direction:column;gap:1rem;margin-bottom:clamp(2.4rem,4vw,3.6rem);max-width:62ch}
.sect__h2{font-size:var(--t-2xl);max-width:20ch}
.sect__lede{color:var(--fg-soft);max-width:58ch;font-size:var(--t-lg);line-height:1.6}

.grid{display:grid;gap:1px;background:var(--line)}
.grid--3{grid-template-columns:1fr;border:1px solid var(--line)}
.grid--2{grid-template-columns:1fr;border:1px solid var(--line)}
@media (min-width:680px){.grid--3{grid-template-columns:1fr 1fr}.grid--2{grid-template-columns:1fr 1fr}}
@media (min-width:1000px){.grid--3{grid-template-columns:repeat(3,1fr)}}

/* ---------- notched pads (services) ---------- */
.pad{background:var(--bg);position:relative;transition:background-color .3s ease}
.pad__in{
  position:relative;height:100%;padding:clamp(1.5rem,2.4vw,2.1rem);
  display:flex;flex-direction:column;gap:.6rem;
}
.pad__in::after{
  content:"";position:absolute;right:0;bottom:0;width:0;height:2px;
  background-image:var(--brand);transition:width .45s cubic-bezier(.2,.7,.3,1);
}
.pad:hover{background:var(--raised)}
.pad:hover .pad__in::after{width:100%}
.pad__no{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.14em;color:var(--fg-faint);transition:color .3s ease;
}
.pad:hover .pad__no{color:var(--accent)}
.pad h3{font-size:var(--t-xl);font-weight:700;letter-spacing:-.015em}
.pad p{color:var(--fg-soft);font-size:var(--t-sm);line-height:1.68}

/* ---------- the chain (process) ---------- */
.chain{list-style:none;margin:0;padding:0;display:grid;gap:2.2rem}
@media (min-width:760px){.chain{grid-template-columns:1fr 1fr;gap:2.6rem 2.2rem}}
@media (min-width:1080px){.chain{grid-template-columns:repeat(4,1fr);gap:1.8rem}}
.chain__step{display:flex;flex-direction:column;align-items:flex-start;gap:.55rem;position:relative}
.chain__step h3{font-size:var(--t-xl);font-weight:700;letter-spacing:-.015em}
.chain__step p:last-child{color:var(--fg-soft);font-size:var(--t-sm);line-height:1.68}
.chain__no{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-top:.35rem;
}

/* an actual domino that tips when the row scrolls in */
.tile{
  width:30px;height:52px;display:block;position:relative;margin-bottom:.55rem;
  background:var(--bg);border:1.5px solid var(--line-2);border-radius:3px;
  transform-origin:bottom left;transform:rotate(0deg);
  transition:transform .55s cubic-bezier(.34,1.3,.5,1),border-color .55s ease;
}
.tile::before{
  content:"";position:absolute;left:4px;right:4px;top:50%;height:1.5px;
  background:var(--line-2);transition:background-color .55s ease;
}
.tile i{
  position:absolute;left:50%;width:6px;height:6px;border-radius:50%;
  background:var(--trace);transform:translateX(-50%);transition:background-color .55s ease;
}
.tile i:first-child{top:11px}
.tile i:last-child{bottom:11px}
.chain__step.in .tile{transform:rotate(-15deg);border-color:var(--accent)}
.chain__step.in .tile::before{background:var(--accent)}
.chain__step.in .tile i{background-image:var(--brand)}

/* ---------- AI use cases ---------- */
.uses{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);grid-template-columns:1fr}
@media (min-width:680px){.uses{grid-template-columns:1fr 1fr}}
@media (min-width:1000px){.uses{grid-template-columns:repeat(3,1fr)}}
.use{background:var(--bg);padding:clamp(1.4rem,2.2vw,1.9rem);display:flex;flex-direction:column;gap:.55rem;transition:background-color .3s ease}
.use:hover{background:var(--raised)}
.use__tag{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.13em;text-transform:uppercase;color:var(--accent);
  display:flex;align-items:center;gap:.55rem;
}
.use__tag::before{content:"";width:14px;height:1.5px;background-image:var(--brand)}
.use p:last-child{color:var(--fg-soft);font-size:var(--t-sm);line-height:1.68}

.note{
  margin-top:2.4rem;padding:clamp(1.5rem,2.6vw,2.2rem);
  background:var(--raised);border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px));
}
.note__tag{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.16em;text-transform:uppercase;color:var(--fg-faint);margin-bottom:1.1rem;
}
.note ul{margin:0;padding:0;list-style:none;display:grid;gap:.85rem}
@media (min-width:820px){.note ul{grid-template-columns:1fr 1fr;gap:.9rem 2.4rem}}
.note li{position:relative;padding-left:1.4rem;color:var(--fg-soft);font-size:var(--t-sm);line-height:1.65}
.note li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;background-image:var(--brand)}
.note b{color:var(--fg);font-weight:600}

/* ---------- why ---------- */
.why{background:var(--bg);padding:clamp(1.5rem,2.6vw,2.2rem);display:flex;flex-direction:column;gap:.6rem}
.why h3{font-size:var(--t-xl);font-weight:700;letter-spacing:-.015em}
.why p{color:var(--fg-soft);font-size:var(--t-sm);line-height:1.68}

.stack{margin-top:2.4rem}
.stack__tag{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.16em;text-transform:uppercase;color:var(--fg-faint);
  padding-bottom:.9rem;border-bottom:1px solid var(--line);
}
.stack dl{margin:0;display:grid;gap:0}
.stack dl > div{
  display:grid;grid-template-columns:1fr;gap:.2rem;
  padding:.95rem 0;border-bottom:1px solid var(--line);
}
@media (min-width:640px){.stack dl > div{grid-template-columns:150px 1fr;gap:1.5rem;align-items:baseline}}
.stack dt{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.1em;text-transform:uppercase;color:var(--accent);
}
.stack dd{margin:0;color:var(--fg-soft);font-size:var(--t-sm)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);max-width:78ch}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:1.25rem 2.6rem 1.25rem 0;position:relative;
  font-family:Chivo,sans-serif;font-weight:700;font-size:var(--t-lg);letter-spacing:-.012em;
  transition:color .2s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--accent-ink)}
.faq summary::before,.faq summary::after{
  content:"";position:absolute;right:2px;top:50%;background:var(--accent);transition:transform .25s ease,opacity .25s ease;
}
.faq summary::before{width:13px;height:1.6px;transform:translateY(-50%)}
.faq summary::after{width:1.6px;height:13px;right:7.7px;transform:translateY(-50%)}
.faq details[open] summary::after{transform:translateY(-50%) rotate(90deg);opacity:0}
.faq__a{padding:0 3rem 1.4rem 0}
.faq__a p{color:var(--fg-soft);font-size:var(--t-sm);line-height:1.72;max-width:66ch}

/* ---------- contact ---------- */
.contact{background:var(--bg-alt);border-top:1px solid var(--line)}
.contact__in{display:grid;gap:clamp(2.4rem,5vw,4.5rem);align-items:start;grid-template-columns:1fr}
@media (min-width:940px){.contact__in{grid-template-columns:1fr 1fr}}
.contact__copy{display:flex;flex-direction:column;gap:1rem}
/* what happens after you hit send — a typed timeline, so the labels carry
   information rather than decoration */
.next{list-style:none;margin:1.4rem 0 0;padding:0;display:grid;gap:0;border-top:1px solid var(--line)}
.next li{display:grid;gap:.3rem;padding:1rem 0;border-bottom:1px solid var(--line)}
@media (min-width:480px){.next li{grid-template-columns:150px 1fr;gap:1.4rem;align-items:baseline}}
.next__when{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.13em;text-transform:uppercase;color:var(--accent);
}
.next__what{color:var(--fg-soft);font-size:var(--t-sm);line-height:1.65}

.form{
  display:grid;grid-template-columns:1fr;gap:1rem;
  background:var(--raised);border:1px solid var(--line);padding:clamp(1.4rem,2.6vw,2.1rem);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.form[hidden]{display:none}
@media (min-width:560px){.form{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:.42rem}
.field--wide{grid-column:1/-1}
.field label{
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.11em;text-transform:uppercase;color:var(--fg-faint);
}
.field .opt{text-transform:none;letter-spacing:0;opacity:.7}
.field input,.field textarea{
  font:400 var(--t-md)/1.5 "Public Sans",sans-serif;color:var(--fg);
  background:var(--bg);border:1px solid var(--line-2);border-radius:0;
  padding:.72rem .8rem;width:100%;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{resize:vertical;min-height:110px}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 16%,transparent)
}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#DC2626}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form__note{grid-column:1/-1;margin:0;color:#DC2626;font-size:var(--t-sm)}
.form__send{grid-column:1/-1;justify-self:start}
.form__send[disabled]{opacity:.6;cursor:progress}
.form__fine{grid-column:1/-1;font-size:var(--t-xs);color:var(--fg-faint);overflow-wrap:anywhere}

/* confirmation panel, swapped in for the form once it has gone through */
.sent{
  display:flex;flex-direction:column;align-items:flex-start;gap:.85rem;
  background:var(--raised);border:1px solid var(--line);
  padding:clamp(1.8rem,3.4vw,2.8rem);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.sent[hidden]{display:none}
.sent__mark{
  width:42px;height:42px;display:grid;place-items:center;
  background-image:var(--brand);border-radius:50%;
}
.sent__mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.sent h3{font-size:var(--t-xl);font-weight:700;letter-spacing:-.015em}
.sent p{color:var(--fg-soft);font-size:var(--t-sm);line-height:1.68;max-width:42ch}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);padding-top:clamp(2.5rem,5vw,3.5rem);background:var(--bg)}
.foot__in{display:grid;gap:2rem;grid-template-columns:1fr}
@media (min-width:820px){.foot__in{grid-template-columns:1.7fr 1fr}}
.foot__brand{display:flex;flex-direction:column;align-items:flex-start;gap:.9rem;max-width:34ch}
.foot__brand .logo{height:32px}
.foot__brand p{color:var(--fg-faint);font-size:var(--t-sm)}
.foot__nav{display:flex;flex-direction:column;gap:.6rem;font-size:var(--t-sm)}
.foot__nav a{text-decoration:none;color:var(--fg-soft);transition:color .18s ease;overflow-wrap:anywhere}
.foot__nav a:hover{color:var(--accent-ink)}
.foot__base{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem;
  margin-top:clamp(2rem,4vw,3rem);padding-block:1.3rem;border-top:1px solid var(--line);
  font-family:"JetBrains Mono",ui-monospace,monospace;font-size:var(--t-xs);
  letter-spacing:.08em;color:var(--fg-faint);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.09s}
.reveal[data-d="2"]{transition-delay:.18s}
.reveal[data-d="3"]{transition-delay:.27s}
.reveal[data-d="4"]{transition-delay:.36s}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  .chain__step .tile{transform:rotate(-15deg)}
}