/* ══════════════════════════════════════════════════════════
   DTI — Institutional Brutalism × Neon Blueprint
   ══════════════════════════════════════════════════════════ */

:root{
  --ink:        #06080c;
  --ink-2:      #0c1017;
  --panel:      #11161f;
  --paper:      #f2f0ea;
  --paper-2:    #e7e4db;
  --line:       rgba(255,255,255,.10);
  --line-dark:  rgba(6,8,12,.14);
  --txt:        #e9e7e1;
  --txt-dim:    #8e94a2;
  --acc:        #c8ff2e;   /* signal lime */
  --acc-2:      #2ee6ff;   /* blueprint cyan */
  --acc-3:      #ff5a3c;   /* alert coral   */
  --r:          2px;
  --wrap:       1280px;
  --ease:       cubic-bezier(.16,.84,.34,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--ink);
  color:var(--txt);
  font-family:"Space Grotesk",-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:17px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

.mono{font-family:"JetBrains Mono",ui-monospace,Consolas,monospace;
  font-size:.7rem;letter-spacing:.16em;text-transform:uppercase}

a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.05}
p{margin:0 0 1em}
mark{background:var(--acc);color:var(--ink);padding:0 .12em}

/* ── ambient layers ─────────────────────────────────────── */
.grid-overlay{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:80px 80px;
  mask-image:radial-gradient(ellipse 120% 90% at 50% 0%,#000 20%,transparent 85%);
}
.cursor-glow{
  position:fixed;z-index:0;pointer-events:none;
  width:520px;height:520px;left:0;top:0;margin:-260px 0 0 -260px;
  background:radial-gradient(circle,rgba(46,230,255,.10),transparent 65%);
  transform:translate3d(-999px,-999px,0);
  transition:opacity .4s;
}
main,.site-head,.site-foot{position:relative;z-index:1}

/* ── header ─────────────────────────────────────────────── */
.site-head{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;gap:2rem;
  padding:.9rem clamp(1rem,4vw,3rem);
  border-bottom:1px solid var(--line);
  background:rgba(6,8,12,.72);
  backdrop-filter:blur(14px) saturate(160%);
}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--acc)}
.brand__mark{display:flex}
.brand__word{
  font-size:1.35rem;font-weight:700;letter-spacing:.06em;color:var(--txt);
}
.site-nav{display:flex;gap:.35rem;margin-left:auto}
.site-nav a{
  position:relative;padding:.45rem .8rem;border-radius:var(--r);
  font-size:.86rem;color:var(--txt-dim);transition:color .25s;
}
.site-nav a::after{
  content:"";position:absolute;left:.8rem;right:.8rem;bottom:.25rem;height:1px;
  background:var(--acc);transform:scaleX(0);transform-origin:left;
  transition:transform .35s var(--ease);
}
.site-nav a:hover,.site-nav a.is-current{color:var(--txt)}
.site-nav a:hover::after,.site-nav a.is-current::after{transform:scaleX(1)}

.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:.6rem}
.burger span{display:block;width:22px;height:2px;background:var(--txt);transition:.3s var(--ease)}
.burger[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* ── theme switch ───────────────────────────────────────── */
.theme-switch{
  display:inline-flex;align-items:center;gap:.5rem;
  background:none;border:1px solid var(--line);color:var(--txt-dim);
  padding:.5rem .75rem;border-radius:var(--r);cursor:pointer;
  transition:.28s var(--ease);
}
.theme-switch:hover{color:var(--acc);border-color:var(--acc)}
.theme-switch__label{font-size:.65rem}
.ico{display:block}
.ico--moon{display:none}
[data-theme="light"] .ico--sun{display:none}
[data-theme="light"] .ico--moon{display:block}

/* ── buttons ────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.85rem 1.5rem;border-radius:var(--r);
  font-size:.9rem;font-weight:500;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:.3s var(--ease);
}
.btn i{font-style:normal;transition:transform .3s var(--ease)}
.btn:hover i{transform:translateX(5px)}
.btn--solid{background:var(--acc);color:var(--ink);font-weight:700}
.btn--solid:hover{background:#fff;box-shadow:0 0 0 4px rgba(200,255,46,.18)}
.btn--line{border-color:var(--line);color:var(--txt)}
.btn--line:hover{border-color:var(--acc);color:var(--acc)}
.btn--ghost{border-color:rgba(255,255,255,.22);font-size:.82rem;padding:.6rem 1.1rem}
.btn--ghost:hover{background:var(--txt);color:var(--ink);border-color:var(--txt)}
.btn--sm{padding:.65rem 1.1rem;font-size:.82rem}
.btn--wide{width:100%;justify-content:center}

/* ── hero ───────────────────────────────────────────────── */
.hero{
  max-width:var(--wrap);margin:0 auto;
  padding:clamp(3rem,8vw,7rem) clamp(1rem,4vw,3rem) 3rem;
}
.hero__kicker{color:var(--acc-2);margin-bottom:2.2rem}

.hero__stage{position:relative;display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.hero__title{
  font-size:clamp(2.7rem,7.4vw,6.6rem);
  letter-spacing:-.045em;text-transform:uppercase;
}
.hero__title .line{display:block;overflow:hidden}
.hero__title em{font-style:normal;color:var(--txt-dim)}
.hero__title .line--fill{
  color:transparent;
  -webkit-text-stroke:1.4px var(--acc);
  text-shadow:0 0 60px rgba(200,255,46,.25);
}
.hero__glyph{
  font-size:clamp(4rem,12vw,11rem);font-weight:700;letter-spacing:-.06em;line-height:.8;
  color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.16);
  user-select:none;
}
.hero__lead{
  max-width:52ch;margin:2rem 0 2.4rem;color:var(--txt-dim);font-size:1.05rem;
}
.hero__actions{display:flex;gap:.8rem;flex-wrap:wrap}

.pillars{
  list-style:none;margin:4.5rem 0 0;padding:0;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
}
.pillar{
  padding:1.4rem 1.2rem 1.2rem;border-right:1px solid var(--line);
  position:relative;transition:background .35s var(--ease);
}
.pillar:last-child{border-right:0}
.pillar::before{
  content:"";position:absolute;top:-1px;left:0;width:0;height:2px;background:var(--acc);
  transition:width .5s var(--ease);
}
.pillar:hover::before{width:100%}
.pillar:hover{background:rgba(255,255,255,.03)}
.pillar .mono{color:var(--acc-2)}
.pillar h3{margin:.5rem 0 .35rem;font-size:1rem;text-transform:uppercase;letter-spacing:.02em}
.pillar p{margin:0;font-size:.82rem;color:var(--txt-dim)}

/* ── ticker ─────────────────────────────────────────────── */
.ticker{
  overflow:hidden;border-block:1px solid var(--line);
  background:var(--ink-2);padding:.7rem 0;
}
.ticker__track{
  display:flex;gap:2.2rem;width:max-content;align-items:center;
  animation:slide 38s linear infinite;
  font-family:"JetBrains Mono",monospace;font-size:.72rem;
  letter-spacing:.22em;text-transform:uppercase;color:var(--txt-dim);
}
.ticker__track i{color:var(--acc);font-style:normal;font-size:.55rem}
@keyframes slide{to{transform:translateX(-50%)}}

/* ── section shell ──────────────────────────────────────── */
.section{
  max-width:var(--wrap);margin:0 auto;
  padding:clamp(4rem,9vw,7.5rem) clamp(1rem,4vw,3rem);
}
.section--tint{
  max-width:none;background:
    linear-gradient(180deg,rgba(46,230,255,.045),transparent 60%),var(--ink-2);
  border-block:1px solid var(--line);
}
.section--tint > *{max-width:var(--wrap);margin-inline:auto}
.section--dark{
  max-width:none;background:var(--paper);color:var(--ink);
}
.section--dark > *{max-width:var(--wrap);margin-inline:auto}

.sec-head{margin-bottom:3rem;max-width:70ch}
.sec-num{display:block;color:var(--acc);margin-bottom:.9rem}
.sec-title{
  font-size:clamp(1.9rem,4.4vw,3.4rem);letter-spacing:-.035em;
}
.sec-lead{margin-top:1rem;color:var(--txt-dim);max-width:62ch}
.section--dark .sec-lead{color:#5b6070}
.section--dark .sec-num{color:#7a8a1f}

/* ── reveal ─────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease) var(--d,0s),transform .7s var(--ease) var(--d,0s)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
  .ticker__track{animation:none}
}

/* ── what is DTI ────────────────────────────────────────── */
.definition{display:grid;grid-template-columns:1fr 1fr 1.2fr;gap:1px;background:var(--line)}
.def{background:var(--ink);padding:2rem 1.8rem}
.def__label{color:var(--txt-dim);margin:0 0 1.4rem}
.def__label b{color:var(--acc-3)}
.def--pos .def__label b{color:var(--acc)}
.def__list{list-style:none;margin:0;padding:0}
.def__list li{
  padding:.6rem 0 .6rem 1.6rem;border-bottom:1px dashed var(--line);
  color:var(--txt-dim);position:relative;font-size:.95rem;
}
.def__list li::before{
  content:"×";position:absolute;left:.2rem;color:var(--acc-3);font-weight:700;
}
.def__big{font-size:1.35rem;line-height:1.35;letter-spacing:-.02em}
.def--do{background:linear-gradient(150deg,var(--acc-2),#0d8fb4);color:var(--ink)}
.def--do .def__label{color:rgba(6,8,12,.6)}
.def--do p{margin:0;font-size:1.02rem}

/* ── helper / matchmaker ────────────────────────────────── */
.helper{display:grid;grid-template-columns:260px 1fr;gap:2.5rem}
.helper__rail{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line)}
.intent{
  background:var(--ink);border:0;color:var(--txt-dim);cursor:pointer;
  text-align:left;padding:.9rem 1rem;font:inherit;font-size:.88rem;
  transition:.25s var(--ease);position:relative;
}
.intent::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--acc);
  transform:scaleY(0);transition:transform .3s var(--ease);
}
.intent:hover{color:var(--txt);background:rgba(255,255,255,.04)}
.intent.is-active{color:var(--ink);background:var(--acc);font-weight:600}
.intent.is-active::before{transform:scaleY(1);background:var(--ink)}

.seek{
  display:flex;align-items:center;gap:.75rem;
  border:1px solid var(--line);background:var(--ink);
  padding:.6rem .9rem;margin-bottom:1.6rem;
  transition:border-color .3s;
}
.seek:focus-within{border-color:var(--acc-2);box-shadow:0 0 0 3px rgba(46,230,255,.12)}
.seek__icon{color:var(--acc-2)}
.seek input{
  flex:1;background:none;border:0;outline:0;color:var(--txt);font:inherit;font-size:.95rem;
}
.seek input::placeholder{color:#5d6472}
.seek__go{
  background:var(--acc);color:var(--ink);border:0;cursor:pointer;
  width:34px;height:34px;border-radius:var(--r);font-size:1rem;
}

.routes{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.route{
  background:var(--ink);padding:1.5rem 1.4rem;display:flex;flex-direction:column;gap:.4rem;
  transition:.3s var(--ease);
}
.route h4{font-size:1.05rem}
.route p{margin:0;color:var(--txt-dim);font-size:.88rem;flex:1}
.route__cta{color:var(--acc);margin-top:.8rem}
.route:hover{background:var(--panel);transform:translateY(-2px)}
.route[hidden]{display:none}
.routes__empty{margin-top:1rem;color:var(--txt-dim);font-size:.9rem}

/* ── platform modules ───────────────────────────────────── */
.modules{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.module{
  position:relative;border:1px solid var(--line);background:var(--ink-2);
  padding:1.8rem 1.6rem 1.5rem;overflow:hidden;
  transition:.4s var(--ease);
}
.module::after{
  content:"";position:absolute;inset:auto -40% -60% auto;width:240px;height:240px;
  background:radial-gradient(circle,rgba(46,230,255,.16),transparent 70%);
  opacity:0;transition:opacity .5s;
}
.module:hover{border-color:rgba(255,255,255,.25);transform:translateY(-4px)}
.module:hover::after{opacity:1}
.module--live{border-color:rgba(200,255,46,.32)}
.module__top{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.1rem}
.module__top .mono{color:var(--txt-dim)}
.module h3{font-size:1.4rem;margin-bottom:.6rem;letter-spacing:-.025em}
.module p{color:var(--txt-dim);font-size:.93rem}
.module__link{color:var(--acc);font-size:.88rem;font-weight:500}
.module__link:hover{text-decoration:underline;text-underline-offset:4px}

.chip{
  font-family:"JetBrains Mono",monospace;font-size:.62rem;letter-spacing:.14em;
  text-transform:uppercase;padding:.28rem .55rem;border:1px solid var(--line);
  color:var(--txt-dim);white-space:nowrap;
}
.chip--live{border-color:var(--acc);color:var(--acc)}
.chip--live::before{content:"● ";font-size:.6em;vertical-align:middle}

/* ── programs (light block) ─────────────────────────────── */
.programs{border-top:1px solid var(--line-dark)}
.prog{border-bottom:1px solid var(--line-dark)}
.prog__head{
  width:100%;display:grid;
  grid-template-columns:110px 1fr auto 28px;align-items:center;gap:1.2rem;
  background:none;border:0;cursor:pointer;font:inherit;color:inherit;
  padding:1.5rem .4rem;text-align:left;transition:padding .35s var(--ease);
}
.prog__head:hover{padding-left:1.1rem}
.prog__tag{color:#8a8f7a}
.prog__name{font-size:clamp(1.25rem,2.6vw,2rem);font-weight:700;letter-spacing:-.03em}
.prog__status{color:#6b7080;white-space:nowrap}
.prog__status.is-active{color:#3d7a00}
.prog__status.is-active::before{content:"● ";font-size:.7em}
.prog__toggle{position:relative;width:22px;height:22px;justify-self:end}
.prog__toggle::before,.prog__toggle::after{
  content:"";position:absolute;background:var(--ink);transition:transform .35s var(--ease);
}
.prog__toggle::before{left:0;right:0;top:10px;height:2px}
.prog__toggle::after{top:0;bottom:0;left:10px;width:2px}
.prog.is-open .prog__toggle::after{transform:rotate(90deg)}
.prog.is-open{background:rgba(6,8,12,.035)}

.prog__body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .5s var(--ease)}
.prog.is-open .prog__body{grid-template-rows:1fr}
.prog__cols{overflow:hidden}
.prog.is-open .prog__cols{padding-bottom:2rem}
.prog__cols{display:grid;grid-template-columns:1fr 280px;gap:2.5rem;padding-inline:.4rem}
.prog__cols p{color:#454b57;font-size:.95rem;max-width:70ch}
.prog__cols h4{margin:1.4rem 0 .4rem;font-size:1rem;text-transform:uppercase;letter-spacing:.02em}
.meta{margin:0;display:flex;flex-direction:column;gap:.9rem;align-self:start;
  border-left:2px solid var(--ink);padding-left:1.2rem}
.meta div{display:flex;flex-direction:column;gap:.15rem}
.meta dt{color:#7b8090}
.meta dd{margin:0;font-weight:600;font-size:.95rem}
.meta .btn--solid{background:var(--ink);color:var(--acc)}
.meta .btn--solid:hover{background:var(--acc);color:var(--ink);box-shadow:none}
.meta .btn--line{border-color:var(--ink);color:var(--ink)}
.meta .btn--line:hover{background:var(--ink);color:var(--paper)}

/* ── ecosystem ──────────────────────────────────────────── */
.eco{display:grid;grid-template-columns:1fr 340px;gap:2rem;align-items:center;
  border:1px solid var(--line);background:var(--ink-2)}
.eco__canvas{padding:1rem}
.eco__svg{width:100%;height:auto;display:block;overflow:visible}

.core-ring{fill:none;stroke:var(--acc);stroke-width:1;stroke-dasharray:4 6;
  transform-origin:400px 280px;animation:spin 34s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.core-fill{fill:var(--acc);}
.core-text{fill:var(--ink);font-family:"Space Grotesk",sans-serif;font-weight:700;
  font-size:26px;text-anchor:middle;letter-spacing:.04em}

.eco-link{stroke:rgba(255,255,255,.16);stroke-width:1;transition:stroke .3s,stroke-width .3s}
.eco-link.is-hot{stroke:var(--acc);stroke-width:2}

.eco-node{cursor:pointer}
.eco-node circle{fill:var(--ink);stroke:rgba(255,255,255,.28);stroke-width:1;
  transition:fill .3s var(--ease),stroke .3s}
.eco-node__dot{fill:rgba(255,255,255,.28);stroke:none;transition:fill .3s,r .3s var(--ease)}
.eco-node:focus{outline:none}
.eco-node:focus-visible circle{stroke:var(--acc-2);stroke-width:2}
.eco-node text{fill:var(--txt-dim);font-family:"JetBrains Mono",monospace;font-size:11px;
  letter-spacing:.1em;text-transform:uppercase;text-anchor:middle;transition:fill .3s}
.eco-node:hover circle{stroke:var(--acc-2)}
.eco-node:hover .eco-node__dot{fill:var(--acc-2)}
.eco-node:hover text{fill:var(--txt)}
.eco-node.is-on circle{stroke:var(--acc)}
.eco-node.is-on .eco-node__dot{fill:var(--acc);r:11}
.eco-node.is-on text{fill:var(--acc)}

.eco__panel{padding:2rem 1.8rem;border-left:1px solid var(--line);align-self:stretch;
  display:flex;flex-direction:column;justify-content:center}
.eco__hint{color:var(--acc-2);display:block;margin-bottom:1rem}
.eco__title{font-size:1.5rem;margin-bottom:.9rem;letter-spacing:-.03em}
.eco__text{color:var(--txt-dim);font-size:.93rem}
.eco__rows{list-style:none;margin:1rem 0 0;padding:0;display:flex;flex-direction:column;gap:.8rem}
.eco__rows li{border-top:1px dashed var(--line);padding-top:.7rem}
.eco__rows b{display:block;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  font-family:"JetBrains Mono",monospace;color:var(--acc);margin-bottom:.2rem}
.eco__rows span{font-size:.9rem;color:var(--txt-dim)}
.eco__panel.is-swap{animation:swap .45s var(--ease)}
@keyframes swap{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ── filters ────────────────────────────────────────────── */
.filters{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:2rem}
.filter{
  background:var(--ink);border:1px solid var(--line);cursor:pointer;color:var(--txt-dim);
  font-family:"JetBrains Mono",monospace;font-size:.7rem;letter-spacing:.12em;
  text-transform:uppercase;padding:.7rem 1rem;transition:.25s var(--ease);
}
.filter:hover{color:var(--txt);background:var(--panel);border-color:rgba(255,255,255,.3)}
.filter.is-active{background:var(--acc);color:var(--ink);border-color:var(--acc);font-weight:700}

/* ── insights ───────────────────────────────────────────── */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.post{
  background:var(--ink-2);padding:1.6rem 1.4rem;display:flex;flex-direction:column;
  transition:.35s var(--ease);position:relative;
}
.post::before{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--acc-2);transition:width .45s var(--ease)}
.post:hover::before{width:100%}
.post:hover{background:var(--panel)}
.post__cat{color:var(--acc-2);margin-bottom:1rem}
.post h3{font-size:1.12rem;margin-bottom:.6rem;letter-spacing:-.02em}
.post p{color:var(--txt-dim);font-size:.88rem;flex:1}
.post__more{color:var(--acc)}
.post[hidden]{display:none}

/* ── partners ───────────────────────────────────────────── */
.logos{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.logo{background:var(--ink-2);padding:1.6rem 1.2rem;display:flex;flex-direction:column;gap:.9rem;
  align-items:flex-start;transition:.3s var(--ease)}
.logo:hover{background:var(--panel)}
.logo__box{
  display:grid;place-items:center;width:100%;height:76px;
  border:1px dashed var(--line);color:var(--txt-dim);font-size:1.05rem;letter-spacing:.18em;
  transition:.3s var(--ease);
}
.logo:hover .logo__box{border-color:var(--acc);color:var(--acc)}
.logo p{margin:0;font-size:.82rem;color:var(--txt-dim);line-height:1.35}
.logo[hidden]{display:none}

/* ── contact ────────────────────────────────────────────── */
.section--contact{
  max-width:none;
  background:linear-gradient(160deg,#123a44,#0a1116 62%);
  border-top:1px solid var(--line);
}
.contact{max-width:var(--wrap);margin-inline:auto;
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.contact__note{color:var(--txt-dim);margin-top:1.2rem;max-width:40ch}
.contact__addr{color:var(--acc-2);line-height:2}

.form{display:flex;flex-direction:column;gap:1.1rem}
.wants{border:0;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.5rem}
.wants legend{color:var(--txt-dim);margin-bottom:.8rem;font-family:"JetBrains Mono",monospace;
  font-size:.7rem;letter-spacing:.16em;text-transform:uppercase}
.want input{position:absolute;opacity:0;pointer-events:none}
.want span{
  display:inline-block;padding:.55rem 1rem;border:1px solid var(--line);
  font-size:.85rem;cursor:pointer;transition:.25s var(--ease);color:var(--txt-dim);
}
.want span:hover{border-color:rgba(255,255,255,.4);color:var(--txt)}
.want input:checked + span{background:var(--acc);border-color:var(--acc);color:var(--ink);font-weight:600}
.want input:focus-visible + span{outline:2px solid var(--acc-2);outline-offset:2px}

.field{position:relative}
.field input,.field textarea{
  width:100%;background:rgba(0,0,0,.28);border:1px solid var(--line);
  color:var(--txt);font:inherit;font-size:.95rem;padding:1.35rem .9rem .6rem;
  outline:0;transition:border-color .25s;resize:vertical;
}
.field label{
  position:absolute;left:.9rem;top:.95rem;color:#6d7382;font-size:.95rem;
  pointer-events:none;transition:.22s var(--ease);
}
.field input:focus,.field textarea:focus{border-color:var(--acc-2)}
.field input:focus + label,.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,.field textarea:not(:placeholder-shown) + label{
  top:.35rem;font-size:.65rem;letter-spacing:.14em;text-transform:uppercase;color:var(--acc-2);
}
.field.has-error input,.field.has-error textarea{border-color:var(--acc-3)}
.form__status{min-height:1.2em;color:var(--acc)}

/* ── footer ─────────────────────────────────────────────── */
.site-foot{
  border-top:1px solid var(--line);background:var(--ink-2);
  padding:clamp(2.5rem,6vw,4rem) clamp(1rem,4vw,3rem) 2rem;
}
.site-foot > *{max-width:var(--wrap);margin-inline:auto}
.foot__brand{display:flex;align-items:baseline;gap:1rem;flex-wrap:wrap;margin-bottom:2.5rem}
.foot__brand p{margin:0;color:var(--txt-dim);font-size:.85rem}
.foot__cols{display:grid;grid-template-columns:repeat(3,minmax(0,220px));gap:2rem;margin-bottom:2.5rem}
.foot__cols h4{color:var(--acc);margin-bottom:.9rem}
.foot__cols a{display:block;padding:.28rem 0;color:var(--txt-dim);font-size:.88rem;transition:color .25s}
.foot__cols a:hover{color:var(--txt)}
.foot__cols i{font-style:normal;font-size:.62rem;color:#4d5462;letter-spacing:.1em;text-transform:uppercase}
.foot__copy{color:#4d5462;border-top:1px solid var(--line);padding-top:1.5rem}

/* ── responsive ─────────────────────────────────────────── */
@media (max-width:1080px){
  .definition{grid-template-columns:1fr 1fr}
  .def--do{grid-column:1/-1}
  .eco{grid-template-columns:1fr}
  .eco__panel{border-left:0;border-top:1px solid var(--line)}
  .posts{grid-template-columns:repeat(2,1fr)}
  .logos{grid-template-columns:repeat(3,1fr)}
  .pillars{grid-template-columns:repeat(2,1fr)}
  .pillar:nth-child(2n){border-right:0}
  .pillar:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (max-width:820px){
  body{font-size:16px}
  .site-nav{
    position:fixed;inset:57px 0 auto;flex-direction:column;gap:0;
    background:var(--ink);border-bottom:1px solid var(--line);
    padding:1rem clamp(1rem,4vw,3rem) 1.5rem;
    transform:translateY(-120%);transition:transform .4s var(--ease);
  }
  .site-nav.is-open{transform:none}
  .site-nav a{padding:.8rem 0;font-size:1rem;border-bottom:1px solid var(--line)}
  .head-cta{margin-left:auto}
  .burger{display:flex}
  .helper{grid-template-columns:1fr}
  .helper__rail{flex-direction:row;flex-wrap:wrap}
  .intent{flex:1 1 auto}
  .modules,.routes{grid-template-columns:1fr}
  .prog__head{grid-template-columns:1fr auto 22px;gap:.8rem}
  .prog__tag{display:none}
  .prog__cols{grid-template-columns:1fr;gap:1.5rem}
  .posts,.logos{grid-template-columns:1fr 1fr}
  .contact{grid-template-columns:1fr}
  .foot__cols{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .pillars{grid-template-columns:1fr}
  .pillar{border-right:0;border-bottom:1px solid var(--line)}
  .posts,.logos{grid-template-columns:1fr}
  .hero__glyph{display:none}
  .head-cta{display:none}
  .theme-switch__label{display:none}
}

/* ══════════════════════════════════════════════════════════
   LIGHT THEME — reference palette
   ══════════════════════════════════════════════════════════ */
[data-theme="light"]{
  --ink:#ffffff;
  --ink-2:#f5f6f9;
  --panel:#eceff4;
  --txt:#0b0d12;
  --txt-dim:#5c6470;
  --line:rgba(11,13,18,.13);
  --acc:#1f6bff;
  --acc-2:#1f6bff;
  --acc-3:#e8452c;
  --amber:#ffc02e;
}

[data-theme="light"] .grid-overlay{
  background-image:
    linear-gradient(to right,rgba(11,13,18,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(11,13,18,.05) 1px,transparent 1px);
}
[data-theme="light"] .cursor-glow{background:radial-gradient(circle,rgba(31,107,255,.09),transparent 65%)}

[data-theme="light"] .site-head{background:rgba(255,255,255,.82)}
[data-theme="light"] .brand{color:var(--txt)}

[data-theme="light"] .btn--solid{background:var(--txt);color:#fff}
[data-theme="light"] .btn--solid:hover{background:var(--acc);color:#fff;box-shadow:0 0 0 4px rgba(31,107,255,.16)}
[data-theme="light"] .btn--ghost{border-color:var(--line)}
[data-theme="light"] .btn--ghost:hover{background:var(--txt);color:#fff;border-color:var(--txt)}

/* hero */
[data-theme="light"] .hero__title .line--fill{
  color:var(--txt);-webkit-text-stroke:0;text-shadow:none;
}
[data-theme="light"] .hero__glyph{color:var(--txt);-webkit-text-stroke:0}
[data-theme="light"] .pillar:hover{background:rgba(11,13,18,.03)}

[data-theme="light"] .ticker{background:var(--ink-2)}

/* what is DTI */
[data-theme="light"] .def--do{background:linear-gradient(150deg,#2f80ff,#1450d8);color:#fff}
[data-theme="light"] .def--do .def__label{color:rgba(255,255,255,.7)}
[data-theme="light"] mark{color:#fff}

/* helper */
[data-theme="light"] .intent:hover{background:rgba(11,13,18,.04)}
[data-theme="light"] .intent.is-active{background:var(--txt);color:#fff}
[data-theme="light"] .intent.is-active::before{background:var(--amber)}
[data-theme="light"] .seek{background:var(--ink-2)}
[data-theme="light"] .seek input::placeholder{color:#8d95a2}
[data-theme="light"] .seek__go{background:var(--txt);color:#fff}
[data-theme="light"] .route:hover{background:var(--ink-2)}

/* platform */
[data-theme="light"] .module{background:var(--ink)}
[data-theme="light"] .module:hover{border-color:rgba(11,13,18,.3)}
[data-theme="light"] .module::after{background:radial-gradient(circle,rgba(31,107,255,.12),transparent 70%)}
[data-theme="light"] .module--live{border-color:rgba(22,143,74,.4)}
[data-theme="light"] .chip--live{border-color:#168f4a;color:#168f4a}
[data-theme="light"] .chip{color:var(--acc);border-color:rgba(31,107,255,.35)}

/* programs */
[data-theme="light"] .section--dark{background:var(--ink-2);color:var(--txt)}
[data-theme="light"] .section--dark .sec-num{color:var(--acc)}
[data-theme="light"] .section--dark .sec-lead{color:var(--txt-dim)}
[data-theme="light"] .prog.is-open{background:#fff}
[data-theme="light"] .prog__toggle::before,[data-theme="light"] .prog__toggle::after{background:var(--txt)}
[data-theme="light"] .prog__status.is-active{color:#168f4a}
[data-theme="light"] .prog__cols p{color:var(--txt-dim)}
[data-theme="light"] .meta{border-left-color:var(--txt)}
[data-theme="light"] .meta .btn--solid{background:var(--txt);color:#fff}
[data-theme="light"] .meta .btn--solid:hover{background:var(--acc);color:#fff}

/* ecosystem */
[data-theme="light"] .eco{background:var(--ink)}
[data-theme="light"] .core-fill{fill:var(--acc)}
[data-theme="light"] .core-ring{stroke:var(--acc)}
[data-theme="light"] .core-text{fill:#fff}
[data-theme="light"] .eco-link{stroke:rgba(11,13,18,.18)}
[data-theme="light"] .eco-link.is-hot{stroke:var(--acc)}
[data-theme="light"] .eco-node circle{fill:#fff;stroke:rgba(11,13,18,.25)}
[data-theme="light"] .eco-node__dot{fill:rgba(11,13,18,.28)}
[data-theme="light"] .eco__panel{
  --txt:#eef2f7;--txt-dim:#a3aeba;--line:rgba(255,255,255,.14);--acc:var(--amber);--acc-2:#5aa2ff;
  background:#0b1119;color:var(--txt);border-left-color:rgba(255,255,255,.12);
}

/* filters + cards */
[data-theme="light"] .filter:hover{background:var(--ink-2);border-color:rgba(11,13,18,.3)}
[data-theme="light"] .filter.is-active{background:var(--txt);color:#fff;border-color:var(--txt)}
[data-theme="light"] .post{background:var(--ink)}
[data-theme="light"] .post:hover{background:var(--ink-2)}
[data-theme="light"] .logo{background:var(--ink)}
[data-theme="light"] .logo:hover{background:var(--ink-2)}

/* contact + footer stay dark, as in the reference */
[data-theme="light"] .section--contact,[data-theme="light"] .site-foot{
  --ink:#12262c;--txt:#eef4f5;--txt-dim:#a8bcc1;--line:rgba(255,255,255,.16);--acc:var(--amber);--acc-2:#7fd6e6;
  color:var(--txt);
}
[data-theme="light"] .section--contact{background:linear-gradient(160deg,#3b6b78,#20424c)}
[data-theme="light"] .site-foot{background:#20424c;border-top-color:rgba(255,255,255,.12)}
[data-theme="light"] .section--contact .btn--solid{background:var(--amber);color:#12262c}
[data-theme="light"] .section--contact .btn--solid:hover{background:#fff;box-shadow:0 0 0 4px rgba(255,192,46,.25)}
[data-theme="light"] .want input:checked + span{background:var(--amber);border-color:var(--amber);color:#12262c}
[data-theme="light"] .foot__copy{color:#7f979d;border-top-color:rgba(255,255,255,.12)}
[data-theme="light"] .foot__cols i{color:#7f979d}