:root{
  --bg:#07101f; --bg2:#0b1830; --card:#0f2038; --line:rgba(255,255,255,.09);
  --text:#e8eef9; --muted:#9db0cc; --accent:#2fa4ff; --accent2:#22d3a6; --warn:#ffb547;
  --radius:16px; --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:min(var(--max),100% - 40px);margin-inline:auto}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:#000;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* header */
header.nav{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
header.nav.scrolled{background:rgba(7,16,31,.85);backdrop-filter:blur(12px);border-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-weight:800;letter-spacing:.18em;text-decoration:none;font-size:1.2rem}
.logo span{color:var(--accent)}
nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;align-items:center}
nav a{display:block;text-decoration:none;color:var(--muted);padding:8px 14px;border-radius:999px;font-size:.95rem;transition:.2s}
nav a:hover,nav a.on{color:#fff;background:rgba(255,255,255,.07)}
nav a.cta{background:var(--accent);color:#04101f;font-weight:600}
nav a.cta:hover{background:#5bbaff}
.burger{display:none;background:none;border:1px solid var(--line);color:#fff;border-radius:10px;width:44px;height:44px;font-size:1.3rem;cursor:pointer}

/* hero */
.hero{position:relative;min-height:100svh;display:grid;align-items:center;overflow:hidden;padding:120px 0 80px}
.hero::before{content:"";position:absolute;inset:0;background:url(../images/hero.svg) 72% center/cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,16,31,.82) 0%,rgba(7,16,31,.55) 42%,rgba(7,16,31,0) 75%),linear-gradient(180deg,rgba(7,16,31,.1),rgba(7,16,31,0) 40%,var(--bg) 100%)}
.hero .wrap{position:relative;z-index:1}
.eyebrow{display:inline-block;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent2);border:1px solid rgba(34,211,166,.35);padding:6px 14px;border-radius:999px;margin-bottom:22px}
h1{font-size:clamp(2.4rem,6vw,4.6rem);line-height:1.08;margin:0 0 20px;letter-spacing:-.02em;max-width:15ch}
h1 em{font-style:normal;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--muted);max-width:56ch;margin:0 0 34px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;text-decoration:none;font-weight:600;padding:14px 26px;border-radius:999px;transition:.2s;border:1px solid transparent}
.btn.primary{background:var(--accent);color:#04101f}
.btn.primary:hover{background:#5bbaff;transform:translateY(-2px)}
.btn.ghost{border-color:var(--line);background:rgba(255,255,255,.04)}
.btn.ghost:hover{background:rgba(255,255,255,.1)}

/* sections */
section{padding:96px 0}
.sec-head{max-width:640px;margin-bottom:48px}
.sec-head .eyebrow{margin-bottom:14px}
h2{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.15;margin:0 0 14px;letter-spacing:-.01em}
.sec-head p{color:var(--muted);margin:0}

.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about img{border-radius:var(--radius);border:1px solid var(--line);aspect-ratio:4/3;object-fit:cover;width:100%}
.about p{color:var(--muted)}
.points{list-style:none;margin:28px 0 0;padding:0;display:grid;gap:18px}
.points li{position:relative;padding-left:34px}
.points li::before{content:"✔";position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:.7rem;background:rgba(34,211,166,.15);color:var(--accent2)}
.points strong{display:block;color:#fff;font-weight:600}
.points p{margin:2px 0 0;color:var(--muted);font-size:.95rem}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:linear-gradient(180deg,var(--card),var(--bg2));border:1px solid var(--line);border-radius:var(--radius);padding:32px;transition:.25s}
.card:hover{transform:translateY(-6px);border-color:rgba(47,164,255,.5);box-shadow:0 18px 40px -18px rgba(47,164,255,.4)}
.ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:1.4rem;margin-bottom:20px;background:rgba(47,164,255,.12);color:var(--accent)}
.card:nth-child(2) .ico{background:rgba(34,211,166,.12);color:var(--accent2)}
.card:nth-child(3) .ico{background:rgba(255,181,71,.12);color:var(--warn)}
.card h3{margin:0 0 10px;font-size:1.25rem}
.card p{margin:0;color:var(--muted);font-size:.97rem}

.band{background:var(--bg2);border-block:1px solid var(--line)}
.contact{display:grid;grid-template-columns:1fr 1.1fr;gap:56px}
.info{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:18px}
.info li{display:flex;gap:14px;align-items:center;color:var(--muted);line-height:1.4}
.info i{font-style:normal;width:40px;height:40px;flex:none;display:grid;place-items:center;border-radius:12px;background:rgba(255,255,255,.06)}
.info a{text-decoration:none;color:var(--text)}
.info a:hover{color:var(--accent)}
form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:grid;gap:16px}
label{font-size:.85rem;color:var(--muted);display:grid;gap:6px}
input,textarea{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;width:100%}
input:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(47,164,255,.2)}
textarea{min-height:130px;resize:vertical}
form .btn{border:0;cursor:pointer;font:inherit;font-weight:600}
.note{font-size:.8rem;color:var(--muted);margin:0}

footer{padding:32px 0;color:var(--muted);font-size:.9rem;border-top:1px solid var(--line)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{text-decoration:none}footer a:hover{color:#fff}

/* reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rv{opacity:1;transform:none;transition:none}.card,.btn{transition:none}}

/* mobile */
@media (max-width:860px){
  .hero{align-items:end;padding-bottom:64px}
  .hero::before{background-position:78% top;background-size:auto 62%;background-repeat:no-repeat}
  .hero::after{background:linear-gradient(180deg,rgba(7,16,31,0) 0%,rgba(7,16,31,.2) 25%,var(--bg) 58%)}
  .burger{display:block;margin-left:auto}
  nav ul{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;background:rgba(7,16,31,.97);padding:14px 20px 22px;border-bottom:1px solid var(--line);display:none}
  nav ul.open{display:flex}
  nav a{padding:14px}
  .about,.contact{grid-template-columns:1fr;gap:36px}
  .cards{grid-template-columns:1fr}
  section{padding:68px 0}
}