/* ==========================================================================
   techDigital — full-stack programmatic ecosystem (EN)
   ========================================================================== */

:root{
  --bg:#15121c;
  --bg-2:#1b1725;
  --bg-3:#211c2e;
  --card:rgba(255,255,255,.035);
  --card-hi:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.09);
  --line-hi:rgba(255,255,255,.18);
  --txt:#ffffff;
  --muted:#a5a2b3;
  --muted-2:#77748a;
  --brand:#7b01f7;
  --brand-2:#863dff;
  --brand-3:#c001f7;
  --blue:#0089f7;
  --green:#00b37e;
  --teal:#12a8a0;
  --radius:20px;
  --radius-s:14px;
  --maxw:1220px;
  --font:"DM Sans","Inter","Helvetica Neue",Arial,system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:var(--font);
  font-size:17px;
  line-height:1.6;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}

h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.1}
h1{font-size:clamp(40px,6.4vw,74px)}
h2{font-size:clamp(30px,4.2vw,50px)}
h3{font-size:clamp(20px,2.2vw,26px)}
p{margin:0}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:clamp(72px,9vw,132px) 0;position:relative}
.section--alt{background:linear-gradient(180deg,transparent,var(--bg-2) 12%,var(--bg-2) 88%,transparent)}

/* ---------- shared bits ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:#cbb9ff;
  padding:8px 15px;border-radius:100px;
  background:rgba(123,1,247,.13);
  border:1px solid rgba(134,61,255,.32);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px var(--brand-2)}
.lead{color:var(--muted);font-size:clamp(17px,1.6vw,20px);max-width:62ch}
.section-head{max-width:820px;margin-bottom:clamp(38px,5vw,64px)}
.section-head h2{margin:20px 0 18px}
.grad{
  background:linear-gradient(94deg,var(--brand-2) 0%,var(--brand-3) 48%,var(--blue) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 28px;border-radius:100px;border:1px solid transparent;
  font-size:16px;font-weight:600;letter-spacing:-.01em;cursor:pointer;
  transition:transform .18s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(96deg,var(--brand) 0%,var(--brand-2) 55%,#9a4bff 100%);
  color:#fff;box-shadow:0 10px 34px -12px rgba(123,1,247,.9);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 16px 44px -12px rgba(134,61,255,1)}
.btn--ghost{background:rgba(255,255,255,.05);border-color:var(--line-hi);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn--sm{padding:11px 20px;font-size:15px}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px;
  position:relative;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-hi);background:var(--card-hi)}

/* ---------- header ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.header.is-stuck{
  background:rgba(21,18,28,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.header__in{display:flex;align-items:center;gap:26px;height:76px}
.logo{display:flex;align-items:center;flex:0 0 auto}
.logo img{height:38px;width:auto}
.nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav a{font-size:15px;color:#d6d4e0;transition:color .2s ease}
.nav a:hover{color:#fff}
.header .btn{flex:0 0 auto}
.burger{
  display:none;width:44px;height:44px;margin-left:auto;
  background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:12px;
  cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .2s ease}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-nav{
  position:fixed;inset:76px 0 auto 0;z-index:55;display:none;
  background:rgba(21,18,28,.98);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);padding:18px 24px 30px;
}
.mobile-nav.is-open{display:block}
.mobile-nav a{display:block;padding:14px 0;font-size:18px;border-bottom:1px solid var(--line)}
.mobile-nav .btn{width:100%;margin-top:22px}

/* ---------- hero ---------- */
.hero{position:relative;padding:170px 0 clamp(60px,7vw,96px);overflow:hidden}
.hero__glow{
  position:absolute;top:-360px;left:50%;transform:translateX(-50%);
  width:1200px;height:900px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(123,1,247,.32),rgba(123,1,247,0) 72%);
}
.hero__mark{
  position:absolute;right:-90px;top:70px;width:min(52vw,660px);opacity:.055;pointer-events:none;
  animation:float 12s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-26px) rotate(4deg)}}
.hero__in{position:relative;z-index:2;max-width:900px}
.hero h1{margin:26px 0 0}
.hero h1 span{display:block}
.hero__sub{margin-top:22px;font-size:clamp(18px,2vw,23px);color:var(--muted);max-width:60ch}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

.stats{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  margin-top:clamp(56px,7vw,84px);
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.stats__i{background:var(--bg);padding:28px 26px}
.stats__n{font-size:clamp(30px,3.4vw,42px);font-weight:700;letter-spacing:-.03em;line-height:1}
.stats__l{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.45}

/* ---------- stack / flow ---------- */
.flow{
  display:grid;grid-template-columns:repeat(5,1fr);gap:12px;align-items:stretch;
  margin-bottom:26px;
}
.flow__node{
  position:relative;text-align:center;padding:26px 14px;border-radius:var(--radius-s);
  border:1px solid var(--line);background:var(--card);
}
.flow__node--own{
  border-color:rgba(134,61,255,.45);
  background:linear-gradient(170deg,rgba(123,1,247,.22),rgba(123,1,247,.05));
  box-shadow:0 14px 40px -22px rgba(123,1,247,.9);
}
.flow__ico{width:44px;height:44px;margin:0 auto 12px;color:#c7b2ff}
.flow__node--own .flow__ico{color:#fff}
.flow__t{font-weight:700;font-size:17px;letter-spacing:-.01em}
.flow__s{font-size:13px;color:var(--muted-2);margin-top:5px}
.flow__node--own .flow__s{color:#c0aee6}
.flow__node:not(:last-child)::after{
  content:"";position:absolute;top:50%;right:-13px;width:14px;height:2px;
  background:linear-gradient(90deg,rgba(255,255,255,.35),rgba(255,255,255,.1));z-index:2;
}
.flow-data{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  padding:20px 26px;border-radius:var(--radius-s);
  border:1px dashed rgba(224,124,214,.4);
  background:linear-gradient(90deg,rgba(224,124,214,.12),rgba(123,1,247,.07));
}
.flow-data__tag{
  font-weight:700;font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:#f0b6e6;
}
.flow-data__txt{color:var(--muted);font-size:15.5px}

.stack-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:34px}
.pcard{
  padding:34px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  position:relative;overflow:hidden;
  transition:transform .25s ease,border-color .25s ease;
}
.pcard::before{
  content:"";position:absolute;inset:-1px -1px auto -1px;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-3),var(--blue));
  opacity:.85;
}
.pcard:hover{transform:translateY(-5px);border-color:var(--line-hi)}
.pcard__top{display:flex;align-items:center;gap:14px}
.pcard__badge{
  width:52px;height:52px;flex:0 0 auto;border-radius:15px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--brand),#9a4bff);
  box-shadow:0 10px 26px -14px rgba(123,1,247,1);
}
.pcard__badge svg{width:26px;height:26px;color:#fff}
.pcard__kicker{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);margin-bottom:2px}
.pcard p{color:var(--muted);margin-top:16px;font-size:16px}
.pcard ul{margin-top:20px;display:grid;gap:10px}
.pcard li{position:relative;padding-left:26px;font-size:15.5px;color:#d3d1de}
.pcard li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:7px;
  border-left:2px solid var(--brand-2);border-bottom:2px solid var(--brand-2);
  transform:rotate(-45deg);
}
.note{
  margin-top:26px;padding:22px 26px;border-radius:var(--radius-s);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  color:var(--muted);font-size:16.5px;
}
.note b{color:#fff;font-weight:600}

/* ---------- why ---------- */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.why__n{font-size:13px;font-weight:700;color:var(--brand-2);letter-spacing:.14em}
.why h3{margin:16px 0 10px;font-size:21px}
.why p{color:var(--muted);font-size:15.5px}

/* ---------- inventory ---------- */
.inv{display:grid;grid-template-columns:.85fr 1.15fr;gap:20px;align-items:start}
.volumes{display:grid;gap:20px}
.vol{
  padding:28px 30px;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--card);
  display:flex;align-items:center;gap:20px;
}
.vol__tag{
  padding:8px 18px;border-radius:100px;font-weight:700;font-size:14px;letter-spacing:.05em;
  background:linear-gradient(96deg,var(--green),var(--teal));color:#fff;flex:0 0 auto;
}
.vol__n{font-size:clamp(30px,3.6vw,40px);font-weight:700;letter-spacing:-.03em;line-height:1}
.vol__l{color:var(--muted);font-size:14.5px;margin-top:6px}
.formats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.fmt{
  padding:22px;border-radius:var(--radius-s);border:1px solid var(--line);
  background:var(--card);transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.fmt:hover{border-color:rgba(134,61,255,.5);transform:translateY(-3px);background:var(--card-hi)}
.fmt h4{font-size:17px;margin-bottom:8px}
.fmt p{font-size:14px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  padding:11px 18px;border-radius:100px;font-size:14.5px;color:#d3d1de;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.chip--dot::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand-2);margin-right:9px;vertical-align:middle}

/* bullet list inside cards */
.dotlist li{position:relative;padding-left:20px}
.dotlist li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-2)}

/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.metric{text-align:center;padding:38px 26px}
.metric__k{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2)}
.metric__v{font-size:clamp(40px,5vw,58px);font-weight:700;letter-spacing:-.03em;margin:14px 0 6px}
.metric__rows{display:grid;gap:6px;margin:12px 0 14px;font-size:15px;color:#d3d1de}
.metric__rows span{color:var(--brand-2);font-weight:700}
.metric p{color:var(--muted);font-size:14.5px}
.verifiers{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:14px 30px;
  padding:22px 26px;border-radius:var(--radius-s);border:1px solid var(--line);background:var(--card);
}
.verifiers span:first-child{color:var(--muted);font-size:15px}
.verifiers b{font-size:17px;letter-spacing:.02em;color:#e9e7f2}

/* ---------- clients ---------- */
.clients{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.clients div{
  background:var(--bg);padding:26px 14px;text-align:center;
  font-size:16px;font-weight:600;color:#c8c5d6;letter-spacing:.01em;
  transition:background .25s ease,color .25s ease;
}
.clients div:hover{background:var(--bg-3);color:#fff}

/* ---------- contact ---------- */
.cta{
  text-align:center;max-width:900px;margin:0 auto;
  padding:clamp(40px,5vw,64px) clamp(24px,4vw,56px);
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  position:relative;overflow:hidden;
}
.cta::before{
  content:"";position:absolute;inset:-1px -1px auto -1px;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-3),var(--blue));
}
.cta h2{margin:20px 0 18px}
.cta .lead{margin:0 auto}

.mailto{
  display:inline-flex;align-items:center;gap:16px;margin-top:clamp(30px,4vw,42px);
  padding:20px clamp(26px,4vw,44px);border-radius:100px;
  font-size:clamp(21px,3vw,32px);font-weight:700;letter-spacing:-.02em;
  background:linear-gradient(96deg,var(--brand) 0%,var(--brand-2) 55%,#9a4bff 100%);
  color:#fff;box-shadow:0 16px 46px -16px rgba(123,1,247,1);
  transition:transform .2s ease,box-shadow .25s ease;
  word-break:break-word;
}
.mailto svg{width:1em;height:1em;flex:0 0 auto;opacity:.9}
.mailto:hover{transform:translateY(-3px);box-shadow:0 22px 60px -16px rgba(134,61,255,1)}

.cta__info{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  margin-top:clamp(38px,5vw,54px);text-align:left;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;
}
.cta__info > *{
  background:var(--bg-2);padding:24px 22px;
  display:flex;gap:14px;align-items:flex-start;
  color:var(--muted);font-size:14.5px;line-height:1.5;
  transition:background .25s ease;
}
.cta__info a:hover{background:var(--bg-3)}
.cta__info svg{width:20px;height:20px;flex:0 0 auto;color:var(--brand-2);margin-top:2px}
.cta__info b{color:#fff;font-weight:600;font-size:16px}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);padding:56px 0 40px;background:var(--bg-2)}
.footer__top{display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;align-items:flex-start}
.footer__logo img{height:36px}
.footer__legal{color:var(--muted-2);font-size:14px;line-height:1.7;max-width:420px;margin-top:18px}
.footer__nav{display:grid;grid-template-columns:repeat(2,auto);gap:12px 48px}
.footer__nav a{color:var(--muted);font-size:15px}
.footer__nav a:hover{color:#fff}
.footer__bottom{
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  color:var(--muted-2);font-size:13.5px;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .65s cubic-bezier(.2,.7,.3,1),transform .65s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero__mark{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav{display:none}
  .header .btn--primary{display:none}
  .burger{display:flex}
  .stack-grid{grid-template-columns:1fr}
  .why{grid-template-columns:repeat(2,1fr)}
  .inv{grid-template-columns:1fr}
  .clients{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:860px){
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow__node:not(:last-child)::after{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:1fr}
  .formats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  body{font-size:16px}
  .hero{padding-top:132px}
  .hero__mark{display:none}
  .why{grid-template-columns:1fr}
  .formats{grid-template-columns:1fr}
  .clients{grid-template-columns:repeat(2,1fr)}
  .cta__info{grid-template-columns:1fr}
  .footer__nav{grid-template-columns:1fr}
  .hero__cta .btn{width:100%}
}