/* ==========================================================
   VLS Engineers - light theme
   Palette taken from the VLS presentation: navy, blue, lime green,
   warm sun accent on a soft cream-green ground.
   ========================================================== */
:root{
  --bg:#f5f9fd;
  --bg-2:#e6f0fa;
  --card:#ffffff;
  --navy:#0a2c55;
  --navy-2:#042548;
  --blue:#0b63b0;
  --green:#73a832;
  --green-d:#4f7f1e;
  --sun:#fcbb1b;
  --ink:#1c2a44;
  --muted:#55627a;
  --line:rgba(10,44,85,.13);
  --shadow:0 14px 40px -18px rgba(10,44,85,.28);
  --display:"Bodoni Moda",Georgia,"Times New Roman",serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --wrap:1240px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:var(--body);font-size:17px;line-height:1.7;color:var(--muted);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
::selection{background:var(--green);color:var(--navy)}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
h1,h2,h3{font-family:var(--display);font-weight:500;line-height:1.1;color:var(--navy);letter-spacing:-.01em}
h2{font-size:clamp(2rem,4.2vw,3.2rem);margin-bottom:14px}
h3{font-size:1.15rem;font-family:var(--body);font-weight:700;letter-spacing:-.005em}
p{max-width:70ch}
section{padding:96px 0;position:relative}

.eye{display:flex;align-items:center;gap:14px;font-size:.72rem;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--green-d);margin-bottom:16px}
.eye::before{content:"";width:28px;height:2px;background:var(--green)}
.center{text-align:center}
.center .eye{justify-content:center}
.center .eye::after{content:"";width:28px;height:2px;background:var(--green)}
.center p{margin-left:auto;margin-right:auto}
.sub{font-size:1.03rem;max-width:62ch}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 30px;font-family:var(--body);font-weight:600;font-size:.95rem;letter-spacing:.02em;border:1px solid transparent;border-radius:4px;cursor:pointer;transition:.25s var(--ease)}
.btn-navy{background:var(--sun);color:var(--navy)}
.btn-navy:hover{background:#ffc94a;transform:translateY(-1px);box-shadow:0 12px 26px -10px rgba(252,187,27,.7)}
.btn-navy::after{content:"\2192";transition:transform .25s var(--ease)}
.btn-navy:hover::after{transform:translateX(4px)}
.btn-green{background:var(--green);color:var(--navy)}
.btn-green:hover{background:#a0d12a;transform:translateY(-1px)}

/* header */
.head{position:sticky;top:0;z-index:80;background:rgba(245,249,253,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.head.scrolled{box-shadow:0 10px 30px -18px rgba(10,44,85,.4)}
.head .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:84px;transition:height .3s var(--ease)}
.head.scrolled .wrap{height:68px}
.logo{display:flex;align-items:center;gap:13px;flex:none}
.logo .mk{width:48px;height:48px;border-radius:10px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;flex:none}
.logo .mk svg{width:34px;height:34px}
.logo b{display:block;font-family:var(--display);font-size:1.3rem;color:var(--navy);font-weight:600;line-height:1.15}
.logo span span,.logo > span > span{display:block;font-size:.63rem;letter-spacing:.2em;text-transform:uppercase;color:var(--green-d);font-weight:600}
nav ul{display:flex;gap:34px}
nav a{font-size:.88rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);padding:6px 0;position:relative;white-space:nowrap;transition:color .2s}
nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--green);transition:right .25s}
nav a:hover,nav a[aria-current]{color:var(--navy)}
nav a:hover::after,nav a[aria-current]::after{right:0}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:6px;background:#fff;cursor:pointer;place-items:center}
.burger span{display:block;width:19px;height:1.5px;background:var(--navy);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:19px;height:1.5px;background:var(--navy)}
.burger span::before{top:-6px}.burger span::after{top:6px}

/* hero */
.hero{position:relative;height:clamp(560px,86vh,760px);overflow:hidden;background:var(--bg);padding:0;touch-action:pan-y}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease;pointer-events:none}
.slide.on{opacity:1;pointer-events:auto}
.slide .bg{position:absolute;inset:0;overflow:hidden}
.slide .bg img{width:100%;height:100%;object-fit:cover;object-position:var(--pos,center);transform:scale(1.06);transition:transform 11s linear}
.slide.on .bg img{transform:scale(1)}
.slide .bg::after{content:"";position:absolute;inset:0;background:
  linear-gradient(100deg,rgba(245,249,253,.82) 0%,rgba(245,249,253,.5) 30%,rgba(245,249,253,.1) 52%,transparent 68%),
  linear-gradient(0deg,rgba(245,249,253,.55) 0%,transparent 12%)}
.slide h1,.slide .h1,.slide .desc{text-shadow:0 0 22px rgba(245,249,253,.85),0 0 4px rgba(245,249,253,.7)}
.slide .inner{position:relative;z-index:3;height:100%;display:flex;align-items:center}
.slide .inner .wrap{width:100%}
.slide .copy{max-width:48ch}
.slide .copy.wide{max-width:58ch}
.slide .copy::before{content:"";display:block;width:64px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--sun),var(--green));margin-bottom:24px}
.slide h1,.slide .h1{font-family:var(--display);font-weight:600;color:var(--navy);letter-spacing:-.015em;font-size:clamp(2.4rem,5.6vw,4.7rem);line-height:1.04;margin-bottom:20px}
.slide h1 em,.slide .h1 em{font-style:normal;color:var(--blue)}
.slide h1 em{white-space:nowrap}
.slide .desc{color:var(--ink);font-size:clamp(1rem,1.4vw,1.15rem);max-width:46ch;margin-bottom:0}
.slide .acts{display:flex;flex-wrap:wrap;gap:13px;margin-top:28px}
.slide .copy > *{opacity:0;transform:translateY(18px)}
.slide.on .copy > *{opacity:1;transform:none;transition:opacity .8s var(--ease),transform .8s var(--ease)}
.slide.on .copy > :nth-child(2){transition-delay:.15s}
.slide.on .copy > :nth-child(3){transition-delay:.3s}
.slide.on .copy > :nth-child(4){transition-delay:.45s}
.slide .copy::before{opacity:1;transform:none}
.dots{position:absolute;left:0;right:0;bottom:30px;z-index:5;display:flex;justify-content:center;gap:12px}
.dots button{width:44px;height:4px;border-radius:2px;background:rgba(10,44,85,.2);border:0;padding:0;cursor:pointer;position:relative;overflow:hidden}
.dots button span{position:absolute;inset:0;width:0;background:var(--navy)}
.dots button.on span{width:100%;transition:width 11s linear}

/* services */
#services{background:
  linear-gradient(rgba(11,99,176,.045) 1px,transparent 1px) 0 0/44px 44px,
  linear-gradient(90deg,rgba(11,99,176,.045) 1px,transparent 1px) 0 0/44px 44px,
  radial-gradient(60% 50% at 85% 0%,rgba(252,187,27,.14),transparent 70%),
  radial-gradient(60% 50% at 0% 100%,rgba(115,168,50,.12),transparent 70%),var(--bg)}
.svc-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;margin-top:24px}
.svc{--ac:var(--blue);position:relative;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:30px 22px 28px;isolation:isolate;transition:transform .35s var(--ease),box-shadow .35s,border-color .35s}
.svc:nth-child(3n+2){--ac:var(--green)}
.svc:nth-child(3n){--ac:var(--sun)}
.svc::after{content:"";position:absolute;left:0;top:0;right:0;height:5px;background:var(--ac)}
.svc:hover{transform:translateY(-8px);border-color:transparent;box-shadow:0 26px 50px -22px rgba(10,44,85,.55);background:linear-gradient(160deg,var(--navy) 0%,#0b4a86 100%)}
.svc .ic{width:40px;height:40px;margin-bottom:20px}
.svc .ic svg{width:100%;height:100%;stroke:var(--navy);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:stroke .3s,transform .4s var(--ease)}
.svc:hover .ic svg{stroke:var(--sun);transform:scale(1.08)}
.svc h3{margin-bottom:9px;font-size:1.05rem;transition:color .3s}
.svc p{font-size:.88rem;line-height:1.55;transition:color .3s}
.svc:hover h3{color:#fff}
.svc:hover p{color:rgba(255,255,255,.82)}

/* sectors with pictures */
.sector{background:linear-gradient(180deg,#e6f0fa,var(--bg))}
.flags{background:#e6f0fa}
.sec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:20px}
.sec{background:var(--card);border-radius:12px;overflow:hidden;border:1px solid var(--line);transition:transform .35s var(--ease),box-shadow .35s}
.sec:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.sec .pic{aspect-ratio:3/2;overflow:hidden;background:var(--bg-2)}
.sec .pic img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.sec:hover .pic img{transform:scale(1.07)}
.sec .txt{padding:22px 24px 26px;border-top:3px solid var(--sun)}
.sec h3{margin-bottom:6px;font-size:1.1rem}
.sec p{font-size:.9rem;line-height:1.55}

/* marquees */
.marq{overflow:hidden;position:relative;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent)}
.marq-track{display:flex;width:max-content;animation:slide-l 34s linear infinite;padding:6px 0 18px}
.marq:hover .marq-track{animation-play-state:paused}
@keyframes slide-l{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.cl-item{flex:none;width:224px;margin-right:18px;border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden;box-shadow:0 8px 24px -16px rgba(10,44,85,.3);transition:.3s var(--ease)}
.cl-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.cl-item img{width:100%;height:auto}
.flags{background:var(--bg-2)}
.fl-item{flex:none;width:150px;margin-right:16px;text-align:center;padding:20px 10px;border:1px solid var(--line);border-radius:10px;background:#fff;transition:.3s var(--ease)}
.fl-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.fl-item img{width:58px;height:39px;margin:0 auto 12px;object-fit:cover;border-radius:3px;box-shadow:0 3px 12px rgba(10,44,85,.25)}
.fl-item span{font-size:.82rem;letter-spacing:.06em;color:var(--navy);font-weight:600;white-space:nowrap}
section + section{border-top:1px solid var(--line)}

/* contact */
.contact{background:var(--bg)}
.ct-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;margin-top:44px;align-items:start}
form{display:grid;gap:18px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:34px;box-shadow:var(--shadow)}
label{display:grid;gap:8px;font-size:.76rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--navy)}
input,select,textarea{font:inherit;font-size:.96rem;padding:14px 16px;border:1px solid rgba(10,44,85,.2);border-radius:6px;background:var(--bg);color:var(--ink);width:100%;transition:.2s}
input::placeholder,textarea::placeholder{color:#8a95a8}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(31,111,209,.15)}
textarea{min-height:124px;resize:vertical}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.note{font-size:.82rem}
.ct-info{display:grid;border-top:1px solid var(--line)}
.ct-info li{padding:22px 0;border-bottom:1px solid var(--line);transition:padding-left .3s var(--ease)}
.ct-info li:hover{padding-left:8px}
.ct-info b{display:block;font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--green-d);margin-bottom:8px}
.ct-info a,.ct-info span{color:var(--navy);font-size:1rem;font-weight:500;line-height:1.6}
.ct-info a:hover{color:var(--blue)}

/* bottom bar */
.botbar{background:var(--navy);color:#fff}
.botbar .wrap{display:flex;justify-content:center;align-items:center;gap:46px;min-height:64px;flex-wrap:wrap}
.botbar a,.botbar span{display:flex;align-items:center;gap:11px;font-size:.92rem;color:rgba(255,255,255,.9)}
.botbar a:hover{color:var(--sun)}
.botbar svg{width:16px;height:16px;stroke:var(--sun);fill:none;stroke-width:1.6;flex:none}
.wapp{position:fixed;right:22px;bottom:22px;z-index:90;width:54px;height:54px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 8px 24px rgba(10,44,85,.35);transition:transform .25s var(--ease)}
.wapp:hover{transform:scale(1.08)}
.wapp svg{width:29px;height:29px;fill:#fff}

.rise{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rise.in{opacity:1;transform:none}
.svc-grid .rise:nth-child(5n+2),.sec-grid .rise:nth-child(3n+2){transition-delay:.08s}
.svc-grid .rise:nth-child(5n+3),.sec-grid .rise:nth-child(3n){transition-delay:.16s}
.svc-grid .rise:nth-child(5n+4){transition-delay:.24s}
.svc-grid .rise:nth-child(5n){transition-delay:.32s}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rise{opacity:1;transform:none;transition:none}
  .marq-track{animation:none}
  .slide .bg img{transition:none;transform:none}
  .slide .copy > *{opacity:1;transform:none;transition:none}
  .dots button.on span{transition:none;width:100%}
}

/* responsive */
@media (max-width:1180px){
  .svc-grid{grid-template-columns:repeat(4,1fr)}
  nav ul{gap:24px}
  nav a{font-size:.82rem}
}
@media (max-width:980px){
  .svc-grid{grid-template-columns:repeat(3,1fr)}
  .sec-grid{grid-template-columns:repeat(2,1fr)}
  .ct-grid{grid-template-columns:1fr;gap:40px}
  nav{position:fixed;inset:84px 0 0 0;background:rgba(245,249,253,.98);backdrop-filter:blur(18px);display:none;padding:14px 28px 50px;overflow-y:auto}
  nav.open{display:block}
  nav ul{flex-direction:column;gap:0}
  nav li{border-bottom:1px solid var(--line)}
  nav a{display:block;padding:19px 0;font-size:1rem}
  nav a::after{display:none}
  .burger{display:grid}
  .head-cta{display:none}
  section{padding:70px 0}
  .hero{height:clamp(500px,78vh,620px)}
}
@media (max-width:760px){
  .hero{height:auto;padding:0;display:grid}
  .slide{position:relative;inset:auto;grid-area:1/1;display:flex;flex-direction:column}
  .slide .bg{position:relative;inset:auto;width:100%;aspect-ratio:2000/1116;flex:none}
  .slide .bg img{transform:none;transition:none;object-position:center}
  .slide .bg::after{background:linear-gradient(0deg,var(--bg) 0%,transparent 35%)}
  .slide .inner{height:auto;align-items:flex-start;padding:4px 0 66px}
  .slide .copy,.slide .copy.wide{max-width:none}
  .slide .copy::before{margin-bottom:16px}
  .slide h1,.slide .h1{font-size:clamp(1.9rem,8.4vw,2.6rem)}
  .slide .acts{margin-top:22px}
  .dots{bottom:26px}
}
@media (max-width:620px){
  body{font-size:16px}
  .svc-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .svc{padding:26px 16px 24px}
  .sec-grid{grid-template-columns:1fr}
  .pair{grid-template-columns:1fr}
  form{padding:22px 18px}
  .logo b{font-size:1.12rem}
  .logo .mk{width:42px;height:42px}
  .head .wrap{height:74px}
  nav{inset:74px 0 0 0}
  .botbar .wrap{gap:14px;padding-top:16px;padding-bottom:16px;flex-direction:column}
  .cl-item{width:190px}
  .fl-item{width:124px}
  .dots button{width:30px}
}
@media (max-width:420px){
  .svc-grid{grid-template-columns:1fr}
  .slide h1,.slide .h1{font-size:2.1rem}
}
.slide .copy.wide .h1{font-size:clamp(2.1rem,4.6vw,3.9rem)}
@media (max-width:760px){.slide .copy.wide .h1{font-size:clamp(1.9rem,8.4vw,2.6rem)}}
.slide .desc{color:var(--navy-2);font-weight:500}