:root{
  --bg:#f4f6f9;
  --paper:#ffffff;
  --tint:#e9edf2;
  --ink:#0e1621;
  --text:#3a4652;
  --muted:#5f6b78;
  --line:#dde3ea;
  --accent:#26486f;
  --night:#0c141e;
  --night-2:#141e2b;
  --night-line:#243142;
  --night-text:#a9b6c4;
  --gutter:clamp(16px,4.4vw,64px);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
html,body{background:var(--bg);color:var(--ink)}
body{font-family:"Onest",system-ui,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3{font-weight:500;letter-spacing:-.03em}
h1 b,h2 b{font-weight:600;color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* шапка */
.top{position:fixed;inset:0 0 auto 0;z-index:30;height:72px;display:flex;align-items:center;gap:40px;padding:0 var(--gutter);
  background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.5) blur(14px);-webkit-backdrop-filter:saturate(1.5) blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s}
.top.scrolled{border-bottom-color:var(--line)}
.logo{display:inline-flex;align-items:baseline;gap:6px;font-size:21px;letter-spacing:-.04em}
.logo-n{font-weight:600}
.logo-m{font-weight:400;color:var(--muted)}
.nav{display:flex;gap:30px;margin-right:auto}
.nav a{font-size:15px;color:var(--text);transition:color .2s}
.nav a:hover{color:var(--ink)}
.lang{display:flex;gap:2px;margin-right:-16px}
.lang a{font-size:14px;color:var(--muted);padding:8px 8px;border-radius:8px;transition:color .2s}
.lang a:hover{color:var(--ink)}
.lang a[aria-current]{color:var(--ink);font-weight:500}

.btn{display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:500;
  transition:transform .18s var(--ease),background .2s,color .2s,border-color .2s;white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--accent)}
.btn-line{border:1px solid #c5ced8;background:var(--paper)}
.btn-line:hover{border-color:var(--ink)}
.arr{transition:transform .2s var(--ease)}
.btn:hover .arr{transform:translateX(3px)}

/* первый экран */
.hero{padding:clamp(150px,22vh,240px) var(--gutter) 0}
.hero-text{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:56px;align-items:end;padding-top:clamp(28px,6vh,72px)}
.hero h1{font-size:clamp(36px,4.6vw,78px);line-height:1.04;letter-spacing:-.04em;max-width:23ch}
.hero-side p{font-size:18px;line-height:1.55;color:var(--text);max-width:44ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* секции */
.sec{padding:clamp(80px,11vw,150px) var(--gutter) 0}
.sec-head{display:grid;grid-template-columns:minmax(160px,1fr) minmax(0,3fr);gap:20px 40px;align-items:start;padding-bottom:44px}
.label{color:var(--muted);font-size:15px;padding-top:14px}
.sec h2{font-size:clamp(32px,4vw,60px);line-height:1.04;letter-spacing:-.04em;max-width:20ch}
.sec-lead{grid-column:2;font-size:18px;color:var(--text);max-width:56ch}

/* работы */
.filters{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 28px;border-top:1px solid var(--line);padding-top:24px}
.chip{height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--paper);font-size:14px;color:var(--text);
  display:inline-flex;align-items:center;gap:8px;transition:background .2s,color .2s,border-color .2s}
.chip span{font-size:12.5px;color:var(--muted)}
.chip:hover{border-color:#b9c3ce}
.chip.on{background:var(--ink);border-color:var(--ink);color:#fff}
.chip.on span{color:#9fb0c2}
.works{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-flow:dense;gap:16px}
.work{background:var(--paper);border-radius:20px;padding:10px;display:flex;flex-direction:column;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.work:hover{transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(14,22,33,.28)}
.work.hide{display:none}
.stage{position:relative;aspect-ratio:4/3;border-radius:14px;background:var(--tint);overflow:hidden}
.stage img{width:100%;height:100%;object-fit:cover;object-position:top}
.desk{position:absolute;left:7%;top:10%;width:80%;aspect-ratio:16/10;border-radius:8px;overflow:hidden;
  box-shadow:0 1px 0 rgba(14,22,33,.06),0 22px 44px -20px rgba(14,22,33,.35);transition:transform .5s var(--ease)}
.desk.dim{left:-6%;top:14%;width:86%;opacity:.42;filter:saturate(.6)}
.phone{border-radius:16px;overflow:hidden;background:#0e1621;border:3px solid #0e1621;aspect-ratio:9/19.5;
  box-shadow:0 26px 40px -18px rgba(14,22,33,.45)}
.phone img{border-radius:12px}
.phone.side{position:absolute;right:6%;top:34%;width:21%;transition:transform .5s var(--ease)}
.phone.solo{position:absolute;left:50%;top:9%;width:31%;transform:translateX(-12%);transition:transform .5s var(--ease)}
.phones{position:absolute;inset:0;display:flex;justify-content:center;align-items:flex-start;gap:4%;padding-top:9%}
.phones .phone{width:25%;transition:transform .5s var(--ease)}
.phones .phone:nth-child(2){transform:translateY(-5%)}
.work:hover .desk{transform:translateY(-6px)}
.work:hover .phone.side{transform:translateY(-12px)}
.work:hover .phone.solo{transform:translate(-12%,-10px)}
.work:hover .phones .phone:nth-child(2){transform:translateY(-9%)}
.w-info{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:18px 10px 12px}
.w-info h3{font-size:20px;line-height:1.2}
.w-info p{margin-top:4px;font-size:14.5px;color:var(--muted)}
.w-host{display:block;margin-top:10px;font-size:14px;color:var(--muted);transition:color .2s}
.w-go{flex:none;width:40px;height:40px;border-radius:50%;border:1px solid #c5ced8;display:grid;place-items:center;font-size:15px;
  transition:background .25s,color .25s,border-color .25s,transform .25s var(--ease)}
.work:hover .w-host{color:var(--accent)}
.work:hover .w-go{background:var(--ink);border-color:var(--ink);color:#fff}

/* сгруппированные карточки: один заказчик, несколько продуктов */
.work.feature{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);padding:10px}
.work.feature:hover{transform:none;box-shadow:none}
.feature .stage{aspect-ratio:auto;min-height:clamp(300px,31vw,500px)}
.feature .desk.back{left:5%;top:8%;width:52%}
.feature .desk.front{left:22%;top:30%;width:52%}
.feature .phone{position:absolute;width:12.5%}
.feature .phone.p1{right:17%;top:13%}
.feature .phone.p2{right:4%;top:24%}
.feature:hover .desk.front{transform:translateY(-6px)}
.feature:hover .phone.p2{transform:translateY(-10px)}
.g-info{display:flex;flex-direction:column;padding:26px 26px 14px 34px}
.g-kicker{color:var(--muted);font-size:14px;margin-bottom:12px}
.g-info h3{font-size:clamp(28px,2.6vw,40px);line-height:1.05;letter-spacing:-.035em}
.g-lead{margin-top:12px;font-size:16.5px;color:var(--text);max-width:42ch}
.g-list{list-style:none;margin-top:auto;padding-top:26px}
.g-list li{border-top:1px solid var(--line)}
.g-list a,.g-list li > div{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:16px;padding:14px 0}
.g-name{font-size:17px;font-weight:500;transition:color .2s}
.g-desc{grid-column:1;font-size:14.5px;color:var(--muted);margin-top:2px}
.g-go{grid-row:1 / span 2;grid-column:2;align-self:center;width:36px;height:36px;border-radius:50%;border:1px solid #c5ced8;
  display:grid;place-items:center;font-size:14px;transition:background .25s,color .25s,border-color .25s}
.g-list a:hover .g-name{color:var(--accent)}
.g-list a:hover .g-go{background:var(--ink);border-color:var(--ink);color:#fff}

.work.feature.flip{grid-template-columns:minmax(0,1fr) minmax(0,1.35fr)}
.feature.flip .stage{order:2}
.feature.flip .g-info{padding:26px 34px 14px 26px}

/* Ақсайым: свой продукт */
.dark{background:var(--night);color:#fff;margin-top:clamp(80px,11vw,150px);padding-bottom:clamp(80px,10vw,140px);overflow:hidden}
.dark .label{color:var(--night-text)}
.dark h2 b{color:#9cc0e8}
.dark .sec-lead{color:var(--night-text)}
.aq-phones{display:flex;justify-content:center;gap:2.2%;padding-top:16px}
.aq-phones .phone{width:16%;max-width:240px;border-color:#26323f;background:#26323f;box-shadow:0 40px 70px -24px rgba(0,0,0,.7);transition:transform .6s var(--ease)}
.aq-phones .phone:nth-child(1),.aq-phones .phone:nth-child(5){transform:translateY(16%)}
.aq-phones .phone:nth-child(2),.aq-phones .phone:nth-child(4){transform:translateY(6%)}
.aq-facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:clamp(56px,7vw,96px);border-top:1px solid var(--night-line)}
.aq-facts > div{padding:28px 26px 0 0}
.aq-facts > div + div{padding-left:26px;border-left:1px solid var(--night-line)}
.aq-facts h3{font-size:21px}
.aq-facts p{margin-top:10px;font-size:15.5px;color:var(--night-text);max-width:34ch}
.aq-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px 28px;margin-top:48px}
.aq-note{font-size:15px;color:var(--night-text)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#d7e4f2}

/* услуги */
.services{border-top:1px solid var(--line)}
.services details{border-bottom:1px solid var(--line)}
.services summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) 40px;gap:24px;align-items:center;padding:26px 0}
.services summary::-webkit-details-marker{display:none}
.s-name{font-size:clamp(22px,2.4vw,32px);font-weight:500;letter-spacing:-.03em;transition:color .2s}
.s-tag{color:var(--muted);font-size:15px}
.services summary:hover .s-name{color:var(--accent)}
.plus{width:40px;height:40px;border-radius:50%;border:1px solid #c5ced8;position:relative;transition:transform .3s var(--ease),background .2s,border-color .2s}
.plus::before,.plus::after{content:"";position:absolute;left:50%;top:50%;width:14px;height:1.5px;background:var(--ink);transform:translate(-50%,-50%);transition:background .2s}
.plus::after{transform:translate(-50%,-50%) rotate(90deg)}
details[open] .plus{transform:rotate(45deg);background:var(--ink);border-color:var(--ink)}
details[open] .plus::before,details[open] .plus::after{background:#fff}
.s-body{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) 40px;gap:24px;padding:0 0 30px}
.s-body p:first-child{font-size:17px;color:var(--text);max-width:52ch}
.s-ex{color:var(--muted);font-size:15px;line-height:1.7}
.s-ex a{color:var(--accent);border-bottom:1px solid currentColor}

/* условия */
.terms{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line)}
.term{padding:30px 28px 10px 0}
.term + .term{padding-left:28px;border-left:1px solid var(--line)}
.t-big{font-size:clamp(28px,2.8vw,42px);font-weight:500;letter-spacing:-.04em;margin-bottom:14px}
.term p:last-child{color:var(--text);font-size:15.5px;max-width:30ch}

/* контакты */
.contact{padding-bottom:clamp(80px,10vw,140px)}
.contact-h{font-size:clamp(36px,5.4vw,84px) !important;max-width:18ch !important;margin-top:20px}
.contact-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:48px;max-width:1100px}
.c-item{background:var(--paper);border-radius:18px;padding:24px 26px;display:grid;gap:10px;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.c-k{font-size:14px;color:var(--muted)}
.c-val{font-size:clamp(18px,1.7vw,24px);font-weight:500;letter-spacing:-.02em;overflow-wrap:anywhere}
.c-item:hover{transform:translateY(-3px);box-shadow:0 16px 36px -22px rgba(14,22,33,.3)}

.foot{display:flex;align-items:center;gap:28px;padding:28px var(--gutter);border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.foot .copy{margin-left:auto}

/* появление при прокрутке */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.in{opacity:1;transform:none}

@media (max-width:1200px){
  .top{gap:28px}
  .nav{gap:22px}
  .works{grid-template-columns:repeat(2,minmax(0,1fr))}
  .work.feature,.work.feature.flip{grid-template-columns:1fr}
  .feature.flip .stage{order:0}
  .feature.flip .g-info{padding:22px 12px 10px}
  .g-info{padding:22px 12px 10px}
  .aq-facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .aq-facts > div:nth-child(3){padding-left:0;border-left:0}
  .aq-facts > div:nth-child(n+3){border-top:1px solid var(--night-line);margin-top:24px}
  .terms{grid-template-columns:repeat(2,minmax(0,1fr))}
  .term:nth-child(3){padding-left:0;border-left:0}
  .term:nth-child(n+3){border-top:1px solid var(--line);margin-top:20px}
}
@media (max-width:900px){
  .nav{display:none}
  .lang{margin-left:auto}
  .top{justify-content:space-between}
  .hero-text{grid-template-columns:1fr;gap:24px}
  .sec-head{grid-template-columns:1fr}
  .sec-lead{grid-column:1}
  .label{padding-top:0}
  .services summary,.s-body{grid-template-columns:1fr 40px}
  .s-tag{display:none}
  .s-ex{grid-column:1}
  .contact-row{grid-template-columns:1fr}
}
@media (max-width:640px){
  .top{height:64px}
  .top{gap:12px}
  .lang{margin-right:-4px}
  .lang a{padding:8px 6px;font-size:13.5px}
  .top .btn-sm{height:38px;padding:0 14px;font-size:13px}
  .hero{padding-top:120px}
  .hero-side p{font-size:16.5px}
  .btn{height:48px;padding:0 22px}
  .works{grid-template-columns:1fr}
  .terms{grid-template-columns:1fr}
  .term,.term + .term{padding:24px 0 6px;border-left:0}
  .term:nth-child(n+2){border-top:1px solid var(--line);margin-top:16px}
  .feature .stage{aspect-ratio:4/3;min-height:0}
  .feature .desk.back{width:70%;left:-8%}
  .feature .desk.front{width:70%;left:8%;top:34%}
  .feature .phone{width:21%}
  .feature .phone.p1{display:none}
  .aq-phones .phone{width:30%}
  .aq-phones .phone:nth-child(1),.aq-phones .phone:nth-child(5){display:none}
  .aq-facts{grid-template-columns:1fr}
  .aq-facts > div,.aq-facts > div + div{padding:22px 0 0;border-left:0}
  .aq-facts > div:nth-child(n+2){border-top:1px solid var(--night-line);margin-top:20px}
  .foot{flex-wrap:wrap;gap:8px 20px}
  .foot .copy{margin-left:0}
}
@media (max-width:430px){
  .top .btn-sm{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important}
}