:root{
  --navy:#02061F; --navy-2:#050C31; --ink:#010314;
  --electric:#1B57FF; --electric-600:#1244D8; --cyan:#29A9FF; --ice:#A9E8FF;
  --d-text:#EEF3FF; --d-muted:rgba(233,240,255,.70); --d-faint:rgba(233,240,255,.44);
  --d-line:rgba(140,180,255,.16); --d-line-2:rgba(140,180,255,.28); --d-card:rgba(255,255,255,.035);
  --ember:#FF6B3D;
  --f-display:'Tektur','Arial Narrow',system-ui,sans-serif;  /* used at font-stretch 87.5% */
  --f-body:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,monospace;
  --wrap:min(92vw,1240px); --r:16px; --r-lg:24px; --pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1); --ease-out:cubic-bezier(.19,1,.22,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;min-height:100svh;background:var(--navy);color:var(--d-text);
  font-family:var(--f-body);font-size:clamp(15.5px,.35vw + 13px,17.5px);line-height:1.62;
  font-weight:450;letter-spacing:-.005em;-webkit-font-smoothing:antialiased;
  display:flex;flex-direction:column;overflow-x:hidden;
  font-stretch:87.5%;
}
svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,textarea{font:inherit;color:inherit}
fieldset{min-width:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:4px;border-radius:6px}
.wrap{width:var(--wrap);margin-inline:auto}

/* ── фон ── */
.bg{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.bg::before,.bg::after{content:"";position:absolute;border-radius:50%;filter:blur(100px);opacity:.55}
.bg::before{width:min(60vw,760px);aspect-ratio:1;top:-18%;right:-12%;background:radial-gradient(circle,rgba(27,87,255,.55),transparent 68%)}
.bg::after{width:min(48vw,600px);aspect-ratio:1;bottom:-16%;left:-10%;background:radial-gradient(circle,rgba(41,169,255,.32),transparent 70%)}

/* ── шапка ── */
.top{padding:clamp(22px,3vw,38px) 0}
.brand{display:flex;align-items:center;gap:12px}
.brand__mark{display:block;width:48px;height:48px;flex:none;color:var(--d-text)}
.brand__mark svg{width:100%;height:100%;display:block}
.brand__txt{display:grid;justify-items:start;gap:4px;line-height:1.1}
.brand__name{font-family:var(--f-display);font-weight:700;font-size:21px;letter-spacing:.08em}
.brand__rd{
  font-family:var(--f-mono);font-size:10.5px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;
  color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(41,169,255,.45);text-underline-offset:3px;
  transition:color .22s,text-decoration-color .22s;
}
.brand__rd:hover,.brand__rd[aria-current]{color:var(--ice);text-decoration-color:var(--ice)}
.brand__txt i{font-family:var(--f-mono);font-style:normal;font-size:10px;letter-spacing:.14em;opacity:.6;text-transform:uppercase}
.top__in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px 32px}
.contacts{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px}
.contacts__tel{display:inline-flex;align-items:baseline;gap:8px;white-space:nowrap;font-weight:600;font-size:15px;transition:color .22s}
.contacts__tel small{font-family:var(--f-mono);font-size:11px;font-weight:500;letter-spacing:.14em;color:var(--cyan)}
.contacts__mail{font-family:var(--f-mono);font-size:13px;color:var(--d-muted);border-bottom:1px solid var(--d-line-2);transition:color .22s,border-color .22s}
.contacts__tel:hover,.contacts__mail:hover{color:var(--ice);border-color:var(--ice)}
.contacts__btn{
  display:inline-flex;align-items:center;padding:11px 20px;border-radius:var(--pill);white-space:nowrap;
  font-weight:700;font-size:14.5px;color:#fff;background:var(--electric);box-shadow:0 10px 30px -14px rgba(27,87,255,.9);
  transition:background .22s,box-shadow .28s var(--ease),transform .28s var(--ease);
}
.contacts__btn:hover{background:var(--electric-600);transform:translateY(-2px);box-shadow:0 16px 40px -14px rgba(27,87,255,1)}

/* ── интро ── */
.intro{padding-bottom:clamp(28px,4vw,52px);display:grid;gap:16px}
.eyebrow{
  font-family:var(--f-mono);font-size:clamp(11px,.16vw + 10px,13px);font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);
  display:flex;align-items:center;gap:12px;
}
.eyebrow .rule{width:clamp(20px,3vw,44px);height:1px;background:currentColor;opacity:.6;flex:none}
h1{
  font-family:var(--f-display);font-weight:600;text-transform:uppercase;
  font-size:clamp(32px,2.6vw + 16px,62px);line-height:1;letter-spacing:-.01em;max-width:24ch;
}
.intro p:not(.eyebrow){color:var(--d-muted);font-size:clamp(17px,.55vw + 12px,21px);line-height:1.55;max-width:66ch}

/* ── карточки ── */
main{flex:1}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.8vw,26px);padding-bottom:clamp(32px,4vw,60px)}
.card{
  position:relative;display:grid;grid-template-rows:auto 1fr;overflow:hidden;
  border:1px solid var(--d-line);border-radius:var(--r-lg);background:var(--d-card);
  transition:border-color .35s,transform .4s var(--ease),background .35s,box-shadow .4s var(--ease);
}
.card::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .4s ease;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,30%),rgba(41,169,255,.16),transparent 62%);
}
.card:hover{border-color:rgba(41,169,255,.45);transform:translateY(-5px);background:rgba(255,255,255,.055);box-shadow:0 30px 70px -40px rgba(27,87,255,.9)}
.card:hover::before{opacity:1}
.card > *{position:relative;z-index:1}
.card__art{
  aspect-ratio:16/9;display:grid;place-items:center;padding:clamp(14px,2vw,28px);
  background:radial-gradient(120% 130% at 78% 8%,#122069,#050B2C 62%);
  border-bottom:1px solid var(--d-line);
}
.card__art svg{width:100%;height:100%;overflow:visible;transition:transform .6s var(--ease-out)}
.card:hover .card__art svg{transform:scale(1.03)}
.ln *{fill:none;stroke:rgba(169,232,255,.55);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}
.ln .acc{stroke:var(--cyan);stroke-width:2.4}
.ln .dash{stroke-dasharray:6 6;stroke:rgba(41,169,255,.6)}
.pdot{fill:rgba(169,232,255,.38);stroke:none}
.pat{stroke:none}

/* body is a column so the button sits at the bottom and lines up across the row */
.card__body{padding:clamp(22px,2.4vw,34px);display:flex;flex-direction:column;gap:14px}
/* `.card p` would outrank a single class, so these two are scoped to .card */
.card .card__no{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan)}
.card h2{
  font-family:var(--f-display);font-weight:600;text-transform:uppercase;
  font-size:clamp(22px,.9vw + 13px,27px);line-height:1.06;letter-spacing:-.012em;
}
.card p{color:var(--d-muted);font-size:15.5px;line-height:1.6}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;margin-bottom:6px}
.chips li{
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;
  padding:7px 12px;border-radius:var(--pill);background:rgba(41,169,255,.1);
  color:var(--ice);border:1px solid rgba(41,169,255,.22);
}
.go{
  margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;gap:10px;
  font-weight:700;font-size:15.5px;color:#fff;
  padding:14px 24px;border-radius:var(--pill);background:var(--electric);width:fit-content;
  box-shadow:0 10px 34px -12px rgba(27,87,255,.9);
  transition:background .22s,box-shadow .28s var(--ease),transform .28s var(--ease);
}
.card:hover .go{background:var(--electric-600);box-shadow:0 16px 44px -14px rgba(27,87,255,1)}
.go .ar{transition:transform .3s var(--ease-out)}
a.go:hover{background:var(--electric-600);box-shadow:0 16px 44px -14px rgba(27,87,255,1)}
.card:hover .go .ar{transform:translateX(4px)}
.card--rd:hover .go .ar{transform:translateY(3px)}
/* R&D has no site address under the button; an empty line of the same height keeps the three buttons level */
.card--rd .card__body::after{content:"";height:calc(12px * 1.6)}
.card .card__lbl{color:var(--d-text);font-weight:700}
.card__list{display:grid;gap:10px;margin-bottom:6px}
.card__list li{position:relative;padding-left:18px;color:var(--d-muted);font-size:15.5px;line-height:1.6}
.card__list li::before{content:"";position:absolute;left:0;top:.66em;width:7px;height:7px;border-radius:2px;background:var(--cyan)}
.card__list b{color:var(--d-text);font-weight:700}
.card .card__host{font-family:var(--f-mono);font-size:12px;color:var(--d-faint);letter-spacing:.04em}

/* ── страница R&D-центра (/rd/) ── */
.rdhero{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,4vw,64px);align-items:center;padding-bottom:clamp(32px,4.5vw,64px)}
.rdhero__txt{display:grid;gap:18px;justify-items:start}
.rdhero__txt > p:not(.eyebrow){color:var(--d-muted);font-size:clamp(17px,.55vw + 12px,21px);line-height:1.55;max-width:60ch}
.rdhero__txt .go{margin-top:6px}
.rdhero__txt .go .ar{display:inline-block}
.rdhero__txt .go:hover .ar{transform:translateY(3px)}
.rdhero__art{
  border:1px solid var(--d-line);border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/10;
  display:grid;place-items:center;padding:clamp(16px,2.4vw,34px);
  background:radial-gradient(120% 130% at 78% 8%,#122069,#050B2C 62%);
}
.rdhero__art svg{width:100%;height:100%;overflow:visible}
.areas{display:grid;gap:clamp(18px,2vw,28px);padding-bottom:clamp(40px,5vw,80px)}
.areas__t{
  font-family:var(--f-display);font-weight:600;text-transform:uppercase;
  font-size:clamp(26px,1.6vw + 14px,42px);line-height:1.04;letter-spacing:-.01em;
}
.areas__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(14px,1.8vw,26px)}
.areas__grid li{
  display:grid;gap:10px;align-content:start;padding:clamp(22px,2.4vw,34px);
  border:1px solid var(--d-line);border-radius:var(--r-lg);background:var(--d-card);
}
.areas__no{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;color:var(--cyan)}
.areas__grid h3{font-family:var(--f-display);font-weight:600;text-transform:uppercase;font-size:clamp(20px,.7vw + 14px,25px);line-height:1.08;letter-spacing:-.01em}
.areas__grid p{color:var(--d-muted);font-size:16px;line-height:1.6}

/* ── форма связи ── */
.contact{
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,3.4vw,60px);align-items:start;
  padding-bottom:clamp(40px,5vw,80px);scroll-margin-top:24px;
}
.contact__l{display:grid;gap:16px;align-content:start}
.contact h2{
  font-family:var(--f-display);font-weight:600;text-transform:uppercase;
  font-size:clamp(26px,1.6vw + 14px,42px);line-height:1.04;letter-spacing:-.01em;max-width:20ch;
}
.contact__l > p{color:var(--d-muted);font-size:clamp(16px,.35vw + 13px,18px);line-height:1.55;max-width:52ch}
.reps{display:grid;border:1px solid var(--d-line);border-radius:var(--r);overflow:hidden;margin-top:6px}
.reps li{display:grid;grid-template-columns:minmax(104px,auto) 1fr;gap:16px;padding:14px 18px;background:var(--d-card);align-items:baseline}
.reps li + li{border-top:1px solid var(--d-line)}
.reps b{font-family:var(--f-mono);font-size:11.5px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan)}
.reps a{font-weight:600;white-space:nowrap;transition:color .22s}
.reps a:hover{color:var(--ice)}

.form{
  padding:clamp(22px,2.4vw,34px);border-radius:var(--r-lg);
  background:rgba(255,255,255,.055);border:1px solid var(--d-line-2);
  display:grid;gap:14px;align-content:start;
}
.fld{display:grid;gap:7px}
.fld > span,.fld legend{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--d-faint);padding:0}
.fld i{color:var(--cyan);font-style:normal}
.fld input,.fld textarea{
  width:100%;padding:13px 15px;border-radius:11px;border:1px solid var(--d-line-2);
  background:rgba(2,6,31,.42);color:var(--d-text);font-size:15.5px;
  transition:border-color .25s,background .25s,box-shadow .25s;resize:vertical;
}
.fld input::placeholder,.fld textarea::placeholder{color:rgba(233,240,255,.32)}
.fld input:focus,.fld textarea:focus{outline:none;border-color:var(--cyan);background:rgba(2,6,31,.62);box-shadow:0 0 0 4px rgba(41,169,255,.14)}
.fld input:user-invalid{border-color:var(--ember)}
.fld--radio{border:0;margin:0;padding:0;display:grid;gap:8px}
.rd-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.rd{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:11px;border:1px solid var(--d-line);background:rgba(2,6,31,.32);cursor:pointer;transition:border-color .22s,background .22s}
.rd:hover{border-color:var(--d-line-2)}
.rd input{accent-color:var(--cyan);width:17px;height:17px;margin:0;flex:none}
.rd span{font-size:15px;color:var(--d-muted)}
.rd:has(input:checked){border-color:var(--cyan);background:rgba(41,169,255,.12)}
.rd:has(input:checked) span{color:var(--d-text)}
.send{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;width:100%;
  padding:15px 26px;border:0;border-radius:var(--pill);cursor:pointer;
  font-weight:700;font-size:15.5px;line-height:1.2;color:#fff;background:var(--electric);
  box-shadow:0 10px 34px -12px rgba(27,87,255,.9);
  transition:background .22s,box-shadow .28s var(--ease),transform .28s var(--ease);
}
.send:hover{background:var(--electric-600);transform:translateY(-2px);box-shadow:0 16px 44px -14px rgba(27,87,255,1)}
.send .ar{transition:transform .3s var(--ease-out)}
.send:hover .ar{transform:translateX(4px)}
.form__note{font-size:12.5px;color:var(--d-faint);line-height:1.55}
.form__note.is-ok{color:var(--cyan)}
.form__note.is-err{color:var(--ember)}

/* ── подвал ── */
.foot{border-top:1px solid var(--d-line);background:var(--ink);padding:clamp(26px,3vw,40px) 0 30px}
.foot__in{display:flex;flex-wrap:wrap;gap:14px 32px;justify-content:space-between;align-items:baseline}
.foot p{font-size:13.5px;color:var(--d-faint);line-height:1.6;max-width:74ch}
.foot a{color:var(--cyan);border-bottom:1px solid rgba(41,169,255,.4);font-family:var(--f-mono);font-size:13.5px}
.foot a:hover{color:var(--ice);border-color:var(--ice)}

/* NLB card carries the metal-air palette: white / light grey / neon green */
.card--nlb{background:linear-gradient(180deg,#FFFFFF,#EDF1EF);border-color:rgba(15,23,21,.10);color:#0F1715}
.card--nlb::before{background:radial-gradient(420px circle at var(--mx,50%) var(--my,30%),rgba(43,245,138,.22),transparent 62%)}
.card--nlb:hover{background:linear-gradient(180deg,#FFFFFF,#E7EEEA);border-color:rgba(16,185,100,.5);box-shadow:0 30px 70px -40px rgba(8,122,68,.8)}
.card--nlb .card__art{background:radial-gradient(120% 130% at 78% 8%,#FFFFFF,#E3E9E6 62%);border-bottom-color:rgba(15,23,21,.10)}
.card--nlb .ln *{stroke:rgba(15,23,21,.52)}
.card--nlb .ln .acc{stroke:#087A44}
.card--nlb .ln .dash{stroke:rgba(8,122,68,.55)}
.card--nlb .pdot{fill:rgba(15,23,21,.28)}
.card--nlb .card__no{color:#087A44}
.card--nlb p{color:rgba(15,23,21,.72)}
.card--nlb .chips li{background:rgba(43,245,138,.14);color:#065F36;border-color:rgba(16,185,100,.35)}
.card--nlb .go{background:#087A44;box-shadow:0 10px 30px -14px rgba(8,122,68,.8)}
.card--nlb:hover .go{background:#06663A;box-shadow:0 16px 40px -14px rgba(8,122,68,.9)}
.card--nlb .card__host{color:rgba(15,23,21,.5)}

/* Three columns get too narrow below 1100px: two projects side by side, R&D below them, full width */
@media (max-width:1099px){
  .cards{grid-template-columns:1fr 1fr}
  .card--rd{grid-column:1/-1;grid-template-columns:.85fr 1.15fr;grid-template-rows:none}
  .card--rd .card__art{aspect-ratio:auto;border-bottom:0;border-right:1px solid var(--d-line)}
  .card--rd .card__body::after{content:none}
}
@media (max-width:900px){
  .cards{grid-template-columns:1fr}
  .card--rd{grid-template-columns:none;grid-template-rows:auto 1fr}
  .card__art,.card--rd .card__art{aspect-ratio:2/1}
  .card--rd .card__art{border-right:0;border-bottom:1px solid var(--d-line)}
  .card h2{font-size:clamp(23px,1.3vw + 15px,34px)}
  .contact{grid-template-columns:1fr}
  .rdhero{grid-template-columns:1fr}
  .areas__grid{grid-template-columns:1fr}
}
@media (max-width:600px){
  .contacts{gap:8px 18px}
  .contacts__mail{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}