/* STRUCTURA — structura.am
   Brand: teal #063B49 · amber #F0A91E · paper #F7F8F7 · slate #536B78 */

:root{
  --ink:#063B49; --ink-2:#0A4E60; --ink-3:#032630;
  --accent:#F0A91E; --accent-2:#FFBE3F; --accent-ink:#8A6008;
  --paper:#F7F8F7; --slate:#536B78; --slate-2:#6B7A82;
  --line:rgba(6,59,73,.13); --line-on-ink:rgba(247,248,247,.16);
  --white:#fff;
  --sans:"IBM Plex Sans","IBM Plex Sans Armenian",system-ui,-apple-system,Segoe UI,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1180px; --r:4px;
  --ease:cubic-bezier(.22,.7,.25,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--white);
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
html[lang="hy"] body,html[lang="ru"] body{font-size:16.5px}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{margin:0;line-height:1.08;letter-spacing:-.02em;font-weight:700}
p{margin:0} ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;background:var(--accent);color:var(--ink);padding:10px 16px;z-index:99}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent-ink);margin:0 0 14px;font-weight:500}
.sec--ink .eyebrow,.hero .eyebrow{color:var(--accent)}

/* scroll progress */
.prog{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);z-index:60;transition:width .1s linear}

/* ---------- header ---------- */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.hdr.is-stuck{box-shadow:0 6px 26px rgba(6,59,73,.09)}
.hdr__in{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.brand img{transition:transform .4s var(--ease)}
.brand:hover img{transform:rotate(-4deg) scale(1.06)}
.brand__txt{display:flex;flex-direction:column;line-height:1.15}
.brand__txt b{font-size:16px;letter-spacing:.11em}
.brand__txt i{font-style:normal;font-family:var(--mono);font-size:10px;letter-spacing:.07em;color:var(--slate-2);text-transform:uppercase}
.nav{margin-left:auto;display:flex;align-items:center;gap:26px}
.nav a{text-decoration:none;font-size:14.5px;font-weight:500;opacity:.82;white-space:nowrap;position:relative}
.nav a:not(.nav__cta)::after{content:"";position:absolute;left:0;bottom:-5px;height:1.5px;width:0;background:var(--accent);transition:width .3s var(--ease)}
.nav a:hover::after{width:100%}
.nav a:hover{opacity:1}
.nav__cta{border:1.5px solid var(--ink);padding:8px 16px;border-radius:var(--r);opacity:1!important;transition:.25s var(--ease)}
.nav__cta:hover{background:var(--ink);color:var(--white)!important}
.hdr__tools{display:flex;align-items:center;gap:12px}
.lang{display:flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.lang button{font-family:var(--mono);font-size:10.5px;letter-spacing:.05em;padding:7px 9px;border:0;
  background:transparent;color:var(--slate);cursor:pointer;transition:.2s}
.lang button:hover{background:rgba(6,59,73,.06)}
.lang button.is-on{background:var(--ink);color:var(--white)}
.burger{display:none;width:42px;height:38px;border:1px solid var(--line);background:transparent;border-radius:var(--r);cursor:pointer;padding:9px 10px}
.burger span{display:block;height:2px;background:var(--ink);margin:3px 0;transition:.25s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--ink);color:var(--white);overflow:hidden;min-height:min(92vh,860px);display:flex;flex-direction:column;justify-content:center}
.hero__bg{position:absolute;inset:0;overflow:hidden}
.hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.34;filter:grayscale(1) contrast(1.08);
  animation:kb 26s ease-in-out infinite alternate;transform-origin:60% 40%}
@keyframes kb{from{transform:scale(1)}to{transform:scale(1.14)}}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,var(--ink) 16%,rgba(6,59,73,.74) 56%,rgba(6,59,73,.34) 100%)}
.hero__glow{position:absolute;right:-14%;top:6%;width:52vw;height:52vw;border-radius:50%;z-index:1;
  background:radial-gradient(circle,rgba(240,169,30,.20),rgba(240,169,30,0) 62%);
  filter:blur(14px);animation:float 15s ease-in-out infinite alternate}
@keyframes float{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-3%,4%,0) scale(1.12)}}
.hero__in{position:relative;z-index:3;padding:96px 24px 88px}
.hero__h1{display:flex;flex-direction:column;letter-spacing:-.045em;line-height:.88}
.hero__h1 span{font-size:clamp(46px,10.4vw,132px);display:block}
.hero__h1 .l2{color:var(--accent);margin-left:.05em}
/* One hero size for every language. Measured at 100px: ENGINEERING 6.47em,
   ՖԱՍԱԴԱՅԻՆ 6.52em, ИНЖИНИРИНГ 7.13em — the widest still leaves ~22% headroom
   inside .hero__in, so hy/ru only need the looser tracking, not a smaller size. */
html[lang="hy"] .hero__h1 span,html[lang="ru"] .hero__h1 span{letter-spacing:-.025em}
.hero__lead{max-width:620px;margin:28px 0 36px;font-size:clamp(17px,1.9vw,21px);color:rgba(247,248,247,.9);font-weight:300}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;text-decoration:none;font-weight:600;font-size:15px;padding:15px 28px;
  border-radius:var(--r);border:1.5px solid transparent;transition:.25s var(--ease);position:relative}
.btn--accent{background:var(--accent);color:var(--ink)}
.btn--accent:hover{background:#ffbe3f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,169,30,.3)}
.btn--ghost{border-color:rgba(247,248,247,.45);color:var(--white)}
.btn--ghost:hover{background:rgba(247,248,247,.12);border-color:var(--white);transform:translateY(-2px)}
/* entrance */
.anim{opacity:0;transform:translateY(26px);animation:up .9s var(--ease) forwards;animation-delay:var(--d,0s)}
@keyframes up{to{opacity:1;transform:none}}
.scrollcue{position:absolute;left:50%;bottom:26px;z-index:3;width:24px;height:38px;border:1.5px solid rgba(247,248,247,.4);
  border-radius:14px;transform:translateX(-50%);display:flex;justify-content:center;padding-top:7px}
.scrollcue span{width:3px;height:7px;background:var(--accent);border-radius:2px;animation:sc 1.9s infinite}
@keyframes sc{0%{opacity:0;transform:translateY(0)}30%{opacity:1}70%{opacity:1;transform:translateY(12px)}100%{opacity:0;transform:translateY(14px)}}

/* ---------- partner ribbon (inside light section) ---------- */
.ribbon{padding:6px 0 4px;overflow:hidden;margin-top:42px}
.ribbon__lbl{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--slate-2);margin-top:20px}
.ribbon__mask{position:relative;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}
.ribbon__track{display:flex;width:max-content;animation:marq 38s linear infinite}
.ribbon__track:hover{animation-play-state:paused}
@keyframes marq{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.ribbon__set{display:flex;align-items:center;gap:72px;padding-right:72px}
.rib{display:flex;align-items:center;justify-content:center;height:64px;text-decoration:none;flex:0 0 auto}
.rib img{max-height:34px;width:auto;filter:brightness(0);opacity:.45;
  transition:opacity .3s,transform .35s var(--ease)}
.rib:hover img{opacity:.92;transform:scale(1.06)}
.rib__word{font-size:22px;font-weight:600;letter-spacing:.01em;color:rgba(6,59,73,.45);white-space:nowrap;
  transition:color .3s,transform .35s var(--ease)}
.rib:hover .rib__word{color:var(--ink);transform:scale(1.06)}

/* ---------- stats ---------- */
.stats{background:var(--paper);border-bottom:1px solid var(--line);padding:52px 0}
.stats__in{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat{display:flex;flex-direction:column;gap:7px}
.stat b{font-size:clamp(34px,4.4vw,52px);line-height:1;color:var(--ink);font-weight:700;letter-spacing:-.03em}
.stat b sup{font-size:.42em;top:-.85em;position:relative;color:var(--accent)}
.stat span{font-size:13.6px;color:var(--slate);line-height:1.45;max-width:24ch}

/* ---------- sections ---------- */
.sec{padding:100px 0}
.sec--paper{background:var(--paper)}
.sec--ink{background:var(--ink);color:var(--paper)}
.sec h2{font-size:clamp(28px,3.6vw,44px)}
.sec__h2{max-width:17ch;margin-bottom:8px}
.grid2{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:60px;align-items:start}
.prose p{margin-bottom:18px;color:var(--slate);font-size:17.5px}
.sec--ink .prose p{color:rgba(247,248,247,.85)}
.pri{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:34px;padding-top:28px;border-top:1px solid var(--line)}
.pri h3{font-size:18px;margin-bottom:8px;position:relative;padding-left:16px}
.pri h3::before{content:"";position:absolute;left:0;top:5px;width:4px;height:15px;background:var(--accent)}
.pri p{font-size:15px;color:var(--slate);line-height:1.55}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-on-ink);margin-top:48px;border:1px solid var(--line-on-ink)}
.card{background:var(--ink);padding:36px 28px 34px;position:relative;overflow:hidden;transition:background .35s}
.card::before{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--accent);transition:width .45s var(--ease)}
.card:hover::before{width:100%}
.card:hover{background:var(--ink-2)}
.card__n{font-family:var(--mono);font-size:11.5px;color:var(--accent);letter-spacing:.1em}
.card h3{font-size:19.5px;margin:14px 0 10px;line-height:1.25}
.card p{font-size:14.8px;color:rgba(247,248,247,.72);line-height:1.55}

/* showcase */
.show{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--line)}
.show__i{margin:0;position:relative;overflow:hidden;height:clamp(200px,26vw,330px)}
.show__i img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);transition:transform .8s var(--ease),filter .5s}
.show__i:hover img{transform:scale(1.07);filter:grayscale(0)}
.show__i figcaption{position:absolute;left:0;right:0;bottom:0;padding:18px 20px;color:#fff;font-size:14px;font-weight:600;
  background:linear-gradient(transparent,rgba(3,38,47,.85))}

/* split */
.split{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:60px;align-items:center}
.split__img{margin:0;overflow:hidden;border-radius:var(--r)}
.split__img img{width:100%;object-fit:cover;filter:grayscale(1);transition:transform .9s var(--ease),filter .6s}
.split__img:hover img{transform:scale(1.05);filter:grayscale(.15)}
.split__txt h2{margin-bottom:26px}
.ticks li{position:relative;padding:13px 0 13px 30px;border-bottom:1px solid var(--line);font-size:15.6px;color:var(--slate);transition:padding-left .3s var(--ease),color .3s}
.ticks li:hover{padding-left:36px;color:var(--ink)}
.ticks li::before{content:"";position:absolute;left:2px;top:20px;width:9px;height:9px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg)}
.ticks--2{columns:2;column-gap:44px}
.ticks--2 li{break-inside:avoid}

.lead{max-width:60ch;color:var(--slate);font-size:17.5px;margin-top:16px}

/* goals */
.goals p{font-size:19px;line-height:1.6;color:rgba(247,248,247,.88);font-weight:300;padding-left:22px;border-left:2px solid var(--accent);margin-bottom:26px}


/* team */
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:46px}
.t{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:0 0 24px;overflow:hidden;transition:.35s var(--ease)}
.t:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(6,59,73,.12)}
.t__ph{aspect-ratio:1/1;overflow:hidden;background:var(--paper)}
.t__ph img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.04);transition:transform .8s var(--ease),filter .5s}
.t:hover .t__ph img{transform:scale(1.06);filter:grayscale(.1)}
.t h3{font-size:18px;margin:22px 24px 6px}
.t p{font-family:var(--mono);font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--accent-ink);margin:0 24px 12px}
.t a{font-size:13.2px;color:var(--slate);text-decoration:none;word-break:break-all;margin:0 24px;display:block}
.t a:hover{color:var(--ink);text-decoration:underline}

/* contact */
.contact{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:60px;align-items:start}
.contact__lead{color:rgba(247,248,247,.82);font-size:17.5px;margin:18px 0 30px;max-width:46ch;font-weight:300}
.cinfo li{display:flex;flex-direction:column;gap:5px;padding:20px 0;border-bottom:1px solid var(--line-on-ink)}
.cinfo li:first-child{border-top:1px solid var(--line-on-ink)}
.cinfo span{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.cinfo a{font-size:18px;text-decoration:none;color:var(--paper);transition:color .25s}
.cinfo a:hover{color:var(--accent)}

/* footer */
.ftr{background:var(--ink-3);color:rgba(247,248,247,.62);padding:32px 0}
.ftr__in{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.ftr__brand{display:flex;align-items:center;gap:11px;font-size:14px;letter-spacing:.09em;color:var(--paper)}
.ftr__brand i{font-style:normal;font-family:var(--mono);font-size:11px;letter-spacing:.05em;color:rgba(247,248,247,.5)}
.ftr__c{font-size:13px}

/* ---------- scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(28px)}
.reveal.in{opacity:1;transform:none;transition:opacity .8s var(--ease) var(--d,0s),transform .8s var(--ease) var(--d,0s)}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .grid2,.split,.contact{grid-template-columns:1fr;gap:38px}
  .cards,.team{grid-template-columns:repeat(2,1fr)}
  .stats__in{grid-template-columns:repeat(2,1fr);gap:26px}
  .split__img{order:-1;max-height:340px}
  .show{grid-template-columns:repeat(2,1fr);gap:2px}
  .show__i{height:240px}
}
@media (max-width:760px){
  .sec{padding:70px 0}
  .nav{position:fixed;inset:72px 0 auto 0;background:var(--white);flex-direction:column;align-items:stretch;gap:0;
    padding:8px 24px 22px;border-bottom:1px solid var(--line);transform:translateY(-135%);transition:transform .3s var(--ease);
    box-shadow:0 18px 40px rgba(6,59,73,.1)}
  .nav.is-open{transform:translateY(0)}
  .nav a{padding:15px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav__cta{text-align:center;margin-top:14px}
  .burger{display:block}
  .hero{min-height:auto}
  .hero__in{padding:74px 24px 66px}
  .cards,.team{grid-template-columns:1fr}
  .stats__in{grid-template-columns:1fr 1fr}
  .ticks--2{columns:1}
  .pri{grid-template-columns:1fr;gap:20px}
  .show{grid-template-columns:1fr}
  .scrollcue{display:none}
  .ribbon__set{gap:44px;padding-right:44px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal,.anim{opacity:1!important;transform:none!important}
}