/* ============================================================
   SWORD — Лендинг лифтов. Apple-clean, industrial, red accent.
   Tokens adapted from Sword Elevator Design System.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Saira:wght@600;700;800;900&family=Manrope:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --red:#D71718;
  --red-700:#B01113;
  --red-tint:#FCEAEA;

  --ink-1000:#0E1013;
  --ink-900:#16181C;
  --ink-700:#33373E;
  --ink-600:#4B5159;
  --ink-500:#6B727C;
  --ink-400:#949AA3;
  --ink-300:#C3C8CE;
  --ink-200:#DEE1E5;
  --ink-150:#E7EAED;
  --ink-100:#F1F3F5;
  --ink-50:#F7F8F9;
  --white:#fff;

  --fg-1:var(--ink-900);
  --fg-2:var(--ink-600);
  --fg-3:var(--ink-500);
  --border:var(--ink-200);
  --hair:var(--ink-150);

  --font:'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --num:'Saira', var(--font);
  --mono:'JetBrains Mono', ui-monospace, monospace;

  --ease:cubic-bezier(.2,.6,.2,1);
  --ease-back:cubic-bezier(.34,1.4,.5,1);

  --nav-h:68px;
  --maxw:1220px;
  --pad:clamp(20px,5vw,64px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--fg-1);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
::selection{background:var(--red);color:#fff}

.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad);width:100%}
.section{padding:clamp(72px,11vh,148px) 0}

/* ---------- Type ---------- */
.eyebrow{
  font-weight:700;font-size:13px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--red);display:inline-flex;align-items:center;gap:12px;
}
.eyebrow.muted{color:var(--ink-400)}
h1,h2,h3{font-weight:800;letter-spacing:-.02em;line-height:1.02;color:var(--ink-1000)}
.display{font-size:clamp(40px,6.4vw,84px);font-weight:800;letter-spacing:-.03em;line-height:.98}
.h2{font-size:clamp(32px,4.4vw,58px);font-weight:800;letter-spacing:-.025em;line-height:1.02}
.h3{font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.015em}
.lead{font-size:clamp(18px,1.5vw,21px);line-height:1.55;color:var(--fg-2);font-weight:400}
p{line-height:1.62;color:var(--fg-2)}
.mono{font-family:var(--mono);font-feature-settings:"tnum" 1}

/* underline accent that draws in on reveal */
.rule{position:relative;display:inline-block}
.rule::after{
  content:"";position:absolute;left:0;bottom:-14px;height:3px;width:0;background:var(--red);
  transition:width .7s var(--ease) .15s;
}
.reveal.in .rule::after,.in.rule::after{width:64px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:700;font-size:16px;letter-spacing:-.01em;border-radius:4px;
  padding:15px 26px;transition:background .2s var(--ease),color .2s var(--ease),transform .12s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--red);color:#fff}
.btn-primary:hover{background:var(--red-700)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink-1000);border:1px solid var(--ink-300)}
.btn-ghost:hover{border-color:var(--ink-900);background:var(--ink-50)}
.btn-lg{padding:18px 34px;font-size:17px}

/* ---------- Nav ---------- */
.boot-bar{position:fixed;top:0;left:0;right:0;height:3px;z-index:101;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .8s var(--ease)}
.boot-bar.in{transform:scaleX(1)}
.boot-bar.tracking{transition:transform .14s linear}
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  display:flex;align-items:center;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(255,255,255,.82);backdrop-filter:blur(14px) saturate(1.4);
  -webkit-backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid var(--hair);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-logo{display:flex;align-items:center;gap:0;overflow:hidden}
.nav-logo img{height:23px;width:auto;transform:translateX(var(--logo-x,-110%));transition:transform .7s var(--ease) .3s}
.nav.boot .nav-logo img{transform:translateX(0)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  font-weight:600;font-size:15px;color:var(--ink-700);padding:9px 14px;border-radius:4px;position:relative;
  transition:color .2s var(--ease);opacity:0;transform:translateY(-6px);
}
.nav.boot .nav-links a{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease),color .2s}
.nav-links a:hover{color:var(--ink-1000)}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-cta{margin-left:10px;padding:10px 18px;font-size:15px}
.nav-burger{display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:4px;align-items:center;justify-content:center}
.nav-burger svg{width:20px;height:20px;stroke:var(--ink-900)}

/* mobile menu */
.mobile-menu{position:fixed;inset:0;z-index:99;background:#fff;transform:translateY(-100%);transition:transform .4s var(--ease);display:flex;flex-direction:column;padding:calc(var(--nav-h) + 20px) var(--pad) 40px}
.mobile-menu.open{transform:none}
.mobile-menu a{font-family:var(--font);font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--ink-1000);padding:18px 0;border-bottom:1px solid var(--hair)}

/* ============================================================
   reveal animation
   ============================================================ */
.reveal{opacity:0;transform:translateY(28px) scale(.985);transition:opacity .7s var(--ease),transform .8s var(--ease),filter .8s var(--ease);filter:blur(2px)}
.reveal.in{opacity:1;transform:none;filter:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}
.reveal.d5{transition-delay:.40s}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;filter:none;transition:none}
}

/* ============================================================
   SCREEN 1 — HERO
   ============================================================ */
.hero{position:relative;padding-top:var(--nav-h);min-height:100vh;display:flex;flex-direction:column;overflow:hidden}
.hero-grid{
  flex:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);
  align-items:center;gap:clamp(20px,4vw,64px);
  padding-top:clamp(24px,4vh,56px);padding-bottom:24px;
}
.hero-copy{max-width:560px}
.hero h1{margin:18px 0 0}
.hero h1 .accent{color:var(--red)}
.hero-sub{margin-top:22px;max-width:440px}
.hero-stats{display:grid;grid-template-columns:repeat(4,auto);gap:clamp(18px,2.6vw,40px);margin-top:40px}
.stat .num{font-family:var(--num);font-weight:800;font-size:clamp(30px,3.4vw,46px);letter-spacing:-.02em;color:var(--ink-1000);line-height:1;font-feature-settings:"tnum" 1}
.stat .num .u{font-size:.52em;color:var(--red);font-weight:700;margin-left:3px}
.stat .lbl{font-size:13px;line-height:1.4;color:var(--fg-3);margin-top:9px;max-width:130px}
.hero-stats .stat{opacity:0;transform:translateY(14px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.hero.go .hero-stats .stat{opacity:1;transform:none}
.hero.go .hero-stats .stat:nth-child(1){transition-delay:1.15s}
.hero.go .hero-stats .stat:nth-child(2){transition-delay:1.27s}
.hero.go .hero-stats .stat:nth-child(3){transition-delay:1.39s}
.hero.go .hero-stats .stat:nth-child(4){transition-delay:1.51s}

.hero-eyebrow,.hero h1,.hero-sub{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.hero.go .hero-eyebrow{opacity:1;transform:none;transition-delay:.85s}
.hero.go .hero h1,.hero.go h1.hero-title{opacity:1;transform:none;transition-delay:.95s}
.hero.go .hero-sub{opacity:1;transform:none;transition-delay:1.05s}

/* cabin stage with split-assembly */
.cabin-stage{position:relative;width:100%;aspect-ratio:1376/768;align-self:center;transform:translateY(var(--py,0)) scale(var(--pscale,1));will-change:transform}
.cabin-rail{position:absolute;top:6%;bottom:6%;width:2px;background:linear-gradient(var(--red),rgba(215,23,24,0));z-index:1;transform:scaleY(0);transform-origin:top;transition:transform .9s var(--ease) .5s}
.cabin-rail.l{left:9%}.cabin-rail.r{right:9%;background:linear-gradient(var(--red),rgba(215,23,24,0))}
.hero.go .cabin-rail{transform:scaleY(1)}
.cabin-piece{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:0;
  transition:transform 1s var(--ease-back),opacity .7s var(--ease)}
.cabin-piece.p-top{clip-path:inset(0 0 75% 0);transform:translateY(-9%)}
.cabin-piece.p-bot{clip-path:inset(75% 0 0 0);transform:translateY(9%)}
.cabin-piece.p-left{clip-path:inset(25% 75% 25% 0);transform:translateX(-9%)}
.cabin-piece.p-right{clip-path:inset(25% 0 25% 75%);transform:translateX(9%)}
.cabin-piece.p-mid{clip-path:inset(25% 25% 25% 25%);transform:scale(.93)}
.hero.go .cabin-piece{opacity:1;transform:none}
.hero.go .p-mid{transition-delay:.15s}
.hero.go .p-top{transition-delay:.30s}
.hero.go .p-bot{transition-delay:.38s}
.hero.go .p-left{transition-delay:.46s}
.hero.go .p-right{transition-delay:.54s}
@media (prefers-reduced-motion: reduce){
  .cabin-piece{opacity:1;transform:none}
  .hero-eyebrow,.hero h1,.hero-sub,.hero-stats .stat{opacity:1;transform:none}
}

/* certs row + scroll hint */
.hero-foot{border-top:1px solid var(--hair);padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;opacity:0;transition:opacity .8s var(--ease) 1.6s}
.hero.go .hero-foot{opacity:1}
.certs{display:flex;align-items:center;gap:clamp(16px,2.4vw,38px);flex-wrap:wrap}
.certs .lab{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-400);font-weight:600}
.cert{font-family:var(--mono);font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--ink-600);padding:7px 13px;border:1px solid var(--border);border-radius:4px;background:#fff;transition:border-color .2s,color .2s}
.cert:hover{border-color:var(--ink-400);color:var(--ink-900)}
.cert b{color:var(--ink-900)}
.scroll-hint{display:flex;align-items:center;gap:10px;color:var(--ink-400);font-size:13px;font-weight:600;letter-spacing:.02em}
.scroll-hint .mouse{width:22px;height:34px;border:2px solid var(--ink-300);border-radius:12px;position:relative}
.scroll-hint .mouse::after{content:"";position:absolute;left:50%;top:6px;width:3px;height:7px;border-radius:2px;background:var(--red);transform:translateX(-50%);animation:wheel 1.6s var(--ease) infinite}
@keyframes wheel{0%{opacity:0;transform:translate(-50%,0)}30%{opacity:1}70%{opacity:1}100%{opacity:0;transform:translate(-50%,9px)}}

/* about paragraph block under hero stats (in copy) */
.hero-about{margin-top:30px;font-size:15.5px;line-height:1.7;color:var(--fg-2);max-width:480px;opacity:0;transition:opacity .8s var(--ease) 1.55s}
.hero.go .hero-about{opacity:1}

/* ============================================================
   SCREEN 2 — PROJECTS + CLIENTS
   ============================================================ */
.sec-head{margin-bottom:clamp(36px,5vw,60px)}
.sec-head .h2{margin-top:18px}
.sec-head.with-side{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap}
.sec-head .side{max-width:380px;color:var(--fg-2);font-size:16px;line-height:1.6;padding-bottom:6px}

.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,28px)}
.proj-card{cursor:default}
.proj-photo{position:relative;border-radius:6px;overflow:hidden;aspect-ratio:4/3;background:var(--ink-100);border:1px solid var(--hair)}
.proj-photo img{width:100%;height:100%;object-fit:cover;translate:0 var(--py,0);scale:var(--imgscale,1.1);transition:scale .9s var(--ease)}
.proj-card:hover .proj-photo img{--imgscale:1.16}
.proj-photo .lifts{position:absolute;left:14px;bottom:14px;display:flex;align-items:baseline;gap:6px;background:rgba(255,255,255,.94);backdrop-filter:blur(6px);padding:7px 12px;border-radius:4px;box-shadow:0 2px 8px rgba(14,16,19,.12)}
.proj-photo .lifts .n{font-family:var(--num);font-weight:800;font-size:21px;color:var(--red);line-height:1}
.proj-photo .lifts .t{font-size:12px;font-weight:600;color:var(--ink-700)}
.proj-info{padding:16px 2px 0}
.proj-info .name{font-weight:800;font-size:18px;letter-spacing:-.01em;color:var(--ink-1000)}
.proj-info .dev{font-size:13.5px;color:var(--ink-400);font-weight:600;margin-top:4px;letter-spacing:.01em}

/* clients */
.clients{margin-top:clamp(72px,9vw,120px)}
.client-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--hair);border:1px solid var(--hair);border-radius:8px;overflow:hidden}
.client-cell{background:#fff;aspect-ratio:3/2;display:flex;align-items:center;justify-content:center;padding:22px clamp(14px,2vw,30px);transition:background .25s var(--ease)}
.client-cell img{max-height:54px;max-width:100%;width:auto;object-fit:contain;filter:grayscale(1);opacity:.45;transition:filter .5s var(--ease),opacity .5s var(--ease),transform .4s var(--ease)}
.client-wall.in .client-cell img{filter:grayscale(.55);opacity:.72}
.client-cell:hover{background:var(--ink-50)}
.client-cell:hover img{filter:grayscale(0);opacity:1;transform:scale(1.05)}
.client-wall.in .client-cell:nth-child(1) img{transition-delay:.02s}
.client-wall.in .client-cell:nth-child(2) img{transition-delay:.06s}
.client-wall.in .client-cell:nth-child(3) img{transition-delay:.10s}
.client-wall.in .client-cell:nth-child(4) img{transition-delay:.14s}
.client-wall.in .client-cell:nth-child(5) img{transition-delay:.18s}
.client-wall.in .client-cell:nth-child(6) img{transition-delay:.22s}
.client-wall.in .client-cell:nth-child(7) img{transition-delay:.10s}
.client-wall.in .client-cell:nth-child(8) img{transition-delay:.14s}
.client-wall.in .client-cell:nth-child(9) img{transition-delay:.18s}
.client-wall.in .client-cell:nth-child(10) img{transition-delay:.22s}
.client-wall.in .client-cell:nth-child(11) img{transition-delay:.26s}
.client-wall.in .client-cell:nth-child(12) img{transition-delay:.30s}

/* ============================================================
   SCREEN 3 — TECHNOLOGIES (accordion)
   ============================================================ */
.tech{background:var(--ink-50);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.tech-grid{display:grid;grid-template-columns:1fr 1.02fr;gap:clamp(32px,5vw,80px);align-items:start}
.tech-visual{position:sticky;top:calc(var(--nav-h) + 30px);border-radius:10px;overflow:hidden;background:#fff;border:1px solid var(--border);aspect-ratio:1/1;box-shadow:0 2px 6px rgba(14,16,19,.05)}
.tech-visual .frame{position:absolute;inset:0}
.tech-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.04);transition:opacity .45s var(--ease),transform .6s var(--ease)}
.tech-visual img.active{opacity:1;transform:scale(1)}
.tech-visual .vtag{position:absolute;left:18px;bottom:18px;z-index:2;font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--ink-700);background:rgba(255,255,255,.9);backdrop-filter:blur(6px);padding:7px 12px;border-radius:4px;border:1px solid var(--hair)}
.vnum{position:absolute;top:16px;left:18px;z-index:2;font-family:var(--num);font-weight:800;font-size:30px;letter-spacing:-.02em;color:var(--ink-1000);line-height:1;font-feature-settings:"tnum" 1}
.vnum i{font-size:.5em;font-style:normal;color:var(--ink-400);font-weight:700;margin-left:2px}
.vbar{position:absolute;left:0;right:0;bottom:0;height:3px;z-index:3;background:var(--ink-150)}
.vbar::after{content:"";position:absolute;left:0;top:0;bottom:0;width:calc(var(--vp,.2)*100%);background:var(--red);transition:width .5s var(--ease)}

.acc{border-top:1px solid var(--ink-200)}
.acc-item{border-bottom:1px solid var(--ink-200);position:relative}
.acc-item::before{content:"";position:absolute;left:-1px;top:-1px;bottom:-1px;width:2px;background:var(--red);transform:scaleY(0);transform-origin:center;transition:transform .45s var(--ease)}
.acc-item.open::before{transform:scaleY(1)}
.acc-head{width:100%;display:flex;align-items:flex-start;gap:18px;padding:27px 4px 27px 18px;text-align:left}
.acc-head .ix{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--ink-400);padding-top:7px;min-width:24px}
.acc-head .ht{flex:1}
.acc-head .title-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.acc-head h3{font-size:clamp(19px,1.9vw,24px);font-weight:800;letter-spacing:-.01em;color:var(--ink-900);transition:color .2s var(--ease)}
.acc-item.open .acc-head h3{color:var(--ink-1000)}
.acc-head .teaser{font-size:14.5px;color:var(--ink-500);margin-top:6px;font-weight:500}
.acc-item.open .acc-head .teaser{color:var(--red);font-weight:600}
.badge{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#fff;background:var(--red);padding:4px 9px;border-radius:3px}
.acc-plus{position:relative;width:22px;height:22px;flex:none;margin-top:6px}
.acc-plus::before,.acc-plus::after{content:"";position:absolute;background:var(--ink-700);transition:transform .3s var(--ease),background .2s}
.acc-plus::before{left:0;right:0;top:10px;height:2px}
.acc-plus::after{top:0;bottom:0;left:10px;width:2px}
.acc-item.open .acc-plus::after{transform:scaleY(0)}
.acc-item.open .acc-plus::before{background:var(--red)}
.acc-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s var(--ease)}
.acc-item.open .acc-body{grid-template-rows:1fr}
.acc-body .inner{overflow:hidden}
.acc-body p{font-size:15.5px;line-height:1.66;color:var(--fg-2);padding:0 4px 26px 54px;max-width:520px;opacity:0;transform:translateY(8px);transition:opacity .4s var(--ease) .08s,transform .4s var(--ease) .08s}
.acc-item.open .acc-body p{opacity:1;transform:none}
/* mobile tech visual (shown above accordion) */
.tech-visual-mobile{display:none}

/* ============================================================
   SCREEN 4 — CABIN DESIGNS (carousel)
   ============================================================ */
.cabins-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;flex-wrap:wrap;margin-bottom:clamp(30px,4vw,48px)}
.carousel{position:relative}
.car-track{display:flex;gap:clamp(16px,2vw,26px);overflow-x:auto;scroll-snap-type:x mandatory;padding:14px 0 26px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.car-track::-webkit-scrollbar{display:none}
.cab-card{
  scroll-snap-align:center;flex:0 0 clamp(280px,34vw,420px);
  background:#fff;border:1px solid var(--border);border-radius:10px;overflow:hidden;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),opacity .5s var(--ease),border-color .3s;
  opacity:.5;transform:scale(.93);
}
.cab-card.is-active{opacity:1;transform:scale(1);box-shadow:0 16px 40px rgba(14,16,19,.12);border-color:var(--ink-200)}
.cab-figure{position:relative;aspect-ratio:1/1;background:linear-gradient(180deg,#fafbfc,#f1f3f5);overflow:hidden}
.cab-figure img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;scale:1;transition:opacity .35s var(--ease),scale .7s var(--ease)}
.cab-figure img.shown{opacity:1}
.cab-card:hover .cab-figure img.shown{scale:1.05}
.cab-toggle{position:absolute;top:14px;right:14px;z-index:3;display:flex;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border:1px solid var(--hair);border-radius:999px;padding:3px;box-shadow:0 2px 6px rgba(14,16,19,.08)}
.cab-toggle button{font-size:12px;font-weight:700;letter-spacing:.01em;color:var(--ink-500);padding:6px 13px;border-radius:999px;transition:color .2s,background .2s}
.cab-toggle button.on{background:var(--red);color:#fff}
.cab-body{padding:20px 22px 24px}
.cab-body .code{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--red);letter-spacing:.03em}
.cab-body .cname{font-weight:800;font-size:20px;letter-spacing:-.01em;color:var(--ink-1000);margin-top:8px}
.cab-body .desc{font-size:14px;line-height:1.55;color:var(--fg-2);margin-top:9px;min-height:44px}
.cab-body .mats{font-family:var(--mono);font-size:11.5px;color:var(--ink-500);margin-top:14px;padding-top:14px;border-top:1px solid var(--hair);letter-spacing:.02em}
.car-ctrl{display:flex;align-items:center;justify-content:space-between;margin-top:14px;gap:20px}
.car-arrows{display:flex;gap:10px}
.car-arrows button{width:48px;height:48px;border:1px solid var(--ink-300);border-radius:999px;display:flex;align-items:center;justify-content:center;transition:background .2s,border-color .2s,transform .12s}
.car-arrows button:hover{background:var(--ink-1000);border-color:var(--ink-1000)}
.car-arrows button:hover svg{stroke:#fff}
.car-arrows button:active{transform:translateY(1px)}
.car-arrows button svg{width:20px;height:20px;stroke:var(--ink-900);transition:stroke .2s}
.car-arrows button:disabled{opacity:.35;pointer-events:none}
.car-dots{display:flex;gap:8px;align-items:center}
.car-dots button{width:8px;height:8px;border-radius:999px;background:var(--ink-300);transition:width .3s var(--ease),background .3s}
.car-dots button.on{width:26px;background:var(--red)}
.cabins-foot{margin-top:34px}
.dl-link{display:inline-flex;align-items:center;gap:11px;font-weight:700;font-size:16px;color:var(--ink-1000);padding-bottom:3px;border-bottom:2px solid var(--ink-1000);transition:gap .2s var(--ease),color .2s,border-color .2s}
.dl-link:hover{gap:16px;color:var(--red);border-color:var(--red)}
.dl-link svg{width:19px;height:19px;stroke:currentColor}

/* ============================================================
   SCREEN 5 — CONTACT + FOOTER
   ============================================================ */
.contact{background:var(--ink-1000);color:#fff;position:relative;overflow:hidden}
.contact .eyebrow{color:#fff}
.contact .eyebrow span.dot{color:var(--red)}
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(36px,5vw,72px);align-items:start}
.contact h2{color:#fff;font-size:clamp(30px,4vw,52px);letter-spacing:-.025em}
.contact .lead{color:#9BA2AB;margin-top:18px;max-width:460px}
.form{margin-top:38px;position:relative}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px;position:relative}
.field.full{grid-column:1/-1}
.field label{display:block;font-size:13px;font-weight:600;color:#9BA2AB;margin-bottom:8px;letter-spacing:.01em}
.field label .req{color:var(--red)}
.field input,.field textarea{
  width:100%;background:#16181C;border:1px solid #2A2E35;border-radius:5px;
  color:#fff;font-family:inherit;font-size:15.5px;padding:14px 15px;transition:border-color .2s var(--ease),background .2s;
}
.field textarea{resize:vertical;min-height:96px}
.field input::placeholder,.field textarea::placeholder{color:#5A616B}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--red);background:#1B1E23}
.field.err input,.field.err textarea{border-color:var(--red)}
.field .msg{font-size:12px;color:var(--red);margin-top:6px;font-weight:600;opacity:0;height:0;transition:opacity .2s}
.field.err .msg{opacity:1;height:auto}
.consent{display:flex;gap:12px;align-items:flex-start;margin:8px 0 22px;cursor:pointer}
.consent input{appearance:none;width:20px;height:20px;border:1px solid #2A2E35;border-radius:4px;flex:none;margin-top:1px;background:#16181C;cursor:pointer;transition:background .2s,border-color .2s;position:relative}
.consent input:checked{background:var(--red);border-color:var(--red)}
.consent input:checked::after{content:"";position:absolute;left:6px;top:2px;width:5px;height:10px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.consent.err input{border-color:var(--red)}
.consent span{font-size:13px;line-height:1.5;color:#9BA2AB}
.consent a{color:#fff;text-decoration:underline;text-underline-offset:2px}
.form .micro{font-size:13px;color:#5A616B;margin-top:16px;line-height:1.5}
.btn-submit{width:100%;padding:17px}
.btn-submit:disabled{opacity:.6;cursor:progress}
.form-fail{font-size:13px;line-height:1.55;color:#F3B5B5;margin-top:14px;padding:12px 14px;background:rgba(215,23,24,.1);border:1px solid rgba(215,23,24,.35);border-radius:6px}
.form-fail a{color:#fff;text-decoration:underline;text-underline-offset:2px}
.form-fail button{color:#fff;text-decoration:underline;text-underline-offset:2px;font-weight:600}

/* thank-you overlay */
.thanks{position:absolute;inset:0;background:var(--ink-1000);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;opacity:0;pointer-events:none;transition:opacity .5s var(--ease)}
.thanks.show{opacity:1;pointer-events:auto}
.check{width:78px;height:78px;border-radius:999px;border:2px solid var(--red);display:flex;align-items:center;justify-content:center;margin-bottom:24px}
.check svg{width:38px;height:38px;stroke:var(--red);stroke-width:2.5;stroke-dasharray:48;stroke-dashoffset:48}
.thanks.show .check svg{animation:draw .6s var(--ease) .15s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.thanks h3{color:#fff;font-size:28px}
.thanks p{color:#9BA2AB;margin-top:12px;max-width:340px}

/* contact aside */
.contact-aside{display:flex;flex-direction:column;gap:14px}
.c-row{display:flex;gap:14px;align-items:flex-start;padding:18px;background:#16181C;border:1px solid #24282F;border-radius:8px;transition:border-color .2s,background .2s}
a.c-row:hover{border-color:#3A3F47;background:#1A1D22}
.c-row .ic{width:40px;height:40px;border-radius:6px;background:#0E1013;border:1px solid #24282F;display:flex;align-items:center;justify-content:center;flex:none}
.c-row .ic svg{width:19px;height:19px;stroke:var(--red)}
.c-row .lab{font-size:12px;color:#5A616B;font-weight:600;letter-spacing:.02em}
.c-row .val{font-size:16px;color:#fff;font-weight:700;margin-top:3px;letter-spacing:-.01em}
.c-row .val.sm{font-size:14px;font-weight:600}
.msgr-row{display:flex;gap:10px}
.msgr-row a{flex:1;display:flex;align-items:center;justify-content:center;gap:9px;padding:14px;background:#16181C;border:1px solid #24282F;border-radius:8px;font-weight:700;font-size:14px;color:#fff;transition:border-color .2s,background .2s}
.msgr-row a:hover{border-color:var(--red);background:#1A1D22}
.msgr-row svg{width:18px;height:18px}
.manager{display:flex;gap:14px;align-items:center;padding:18px;background:linear-gradient(135deg,#16181C,#1B1E23);border:1px solid #24282F;border-radius:8px}
.manager .ava{width:54px;height:54px;border-radius:999px;background:#0E1013;border:1px solid #2A2E35;display:flex;align-items:center;justify-content:center;flex:none;overflow:hidden;color:#5A616B}
.manager .ava svg{width:26px;height:26px;stroke:#5A616B}
.manager .lab{font-size:12px;color:#5A616B;font-weight:600}
.manager .nm{font-size:16px;font-weight:700;color:#fff;margin-top:2px}
.manager .pos{font-size:13px;color:#9BA2AB;margin-top:1px}
.map-wrap{margin-top:2px;border-radius:8px;overflow:hidden;border:1px solid #24282F;aspect-ratio:16/8;background:#16181C;position:relative}
.map-wrap iframe{width:100%;height:100%;border:0;filter:grayscale(.3) contrast(1.05)}
.map-ph{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#5A616B;gap:10px;font-size:13px}
.map-ph svg{width:30px;height:30px;stroke:#3A3F47}

/* footer */
.footer{background:#0A0B0D;color:#fff;border-top:1px solid #1C1F25;padding:60px 0 36px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid #1C1F25}
.footer-brand img{height:24px;margin-bottom:18px}
.footer-brand p{color:#6B727C;font-size:14px;max-width:280px;line-height:1.6}
.footer-col h4{font-size:12px;text-transform:uppercase;letter-spacing:.14em;color:#5A616B;font-weight:700;margin-bottom:16px}
.footer-col a,.footer-col .fi{display:block;color:#9BA2AB;font-size:14.5px;padding:7px 0;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-top:26px;color:#5A616B;font-size:13px}
.footer-bottom .mono{color:#5A616B}
.foot-policy{color:#9BA2AB;transition:color .2s}
.foot-policy:hover{color:#fff;text-decoration:underline;text-underline-offset:2px}

/* back to top */
.to-top{position:fixed;right:24px;bottom:24px;z-index:80;width:50px;height:50px;border-radius:999px;background:var(--ink-1000);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px rgba(14,16,19,.25);opacity:0;transform:translateY(16px) scale(.9);pointer-events:none;transition:opacity .3s var(--ease),transform .3s var(--ease),background .2s}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--red)}
.to-top svg{width:20px;height:20px;stroke:#fff}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:980px){
  .nav-links{display:none}
  .nav-burger{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:10px;padding-top:18px}
  .hero-copy{max-width:none;order:2}
  .cabin-stage{order:1;max-width:560px;margin:0 auto;width:100%}
  .hero-about{display:none}
  .tech-grid{grid-template-columns:1fr;gap:22px}
  .tech-visual{display:none}
  .tech-visual-mobile{display:block;position:relative;border-radius:10px;overflow:hidden;background:#fff;border:1px solid var(--border);aspect-ratio:16/11;margin-bottom:8px}
  .tech-visual-mobile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .4s var(--ease)}
  .tech-visual-mobile img.active{opacity:1}
  .contact-grid{grid-template-columns:1fr;gap:34px}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:720px){
  .proj-grid{grid-template-columns:1fr 1fr;gap:14px}
  .client-wall{grid-template-columns:repeat(3,1fr)}
  .hero-stats{grid-template-columns:1fr 1fr;gap:24px 18px}
  .stat .lbl{max-width:none}
  .form-row{grid-template-columns:1fr}
  .acc-body p{padding-left:4px}
  .acc-head .ix{display:none}
}
@media (max-width:480px){
  .proj-grid{grid-template-columns:1fr}
  .client-wall{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr}
}