:root{
  --bg:#0a0c10; --panel:#121521; --ink:#e8ecf3; --dim:#a9b3c7;
  --pri:#4f7cff; --acc:#22d3ee; --rad:18px; --shadow:0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial}
img{max-width:100%;height:auto;display:block}
a{color:var(--pri);text-decoration:none}
a:hover{color:var(--acc)}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:sticky;top:0;background:rgba(10,12,16,.7);backdrop-filter:blur(8px);border-bottom:1px solid #151826;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;letter-spacing:.3px;white-space:nowrap}
nav a{margin-left:16px;color:var(--dim)}
nav a.active,nav a:hover{color:var(--ink)}

/* Hero */
.hero{padding:42px 0 24px;background:radial-gradient(900px 420px at 0% 0%, rgba(79,124,255,.16), transparent 60%), radial-gradient(600px 360px at 100% 0%, rgba(34,211,238,.12), transparent 60%);}
.hero .wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.hero img{border-radius:22px;border:1px solid #1d2233;box-shadow:var(--shadow)}
.cta-row{margin:14px 0 8px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 18px;border-radius:999px;border:1px solid #243057;box-shadow:var(--shadow);transition:transform .2s ease, box-shadow .2s ease}
.btn.primary{background:var(--pri);border-color:var(--pri);color:white}
.btn.ghost{background:transparent;color:var(--ink)}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(79,124,255,.35)}
.seo-ru{font-size:16px;margin:8px 0 0;color:var(--dim)}

/* Sections */
.section{padding:40px 0}
.section .lead{color:var(--dim);max-width:68ch}
.card{background:var(--panel);border:1px solid #1d2233;border-radius:var(--rad);padding:18px;box-shadow:var(--shadow);overflow:hidden}
.grid-3{display:grid;grid-template-columns:repeat(3, minmax(0,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.card h3{margin-top:10px}

/* Mode images in cards */
.card img.mode{width:100%;height:auto;display:block;border-radius:14px;border:1px solid #1d2233}

/* Gallery */
.gallery{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.gallery img{border-radius:16px;border:1px solid #1d2233}

/* FAQ */
.faq{display:grid;gap:12px}
.faq details{background:#0f1320;border:1px solid #1d2233;border-radius:14px;padding:14px}
.faq summary{cursor:pointer;font-weight:700}

/* Forms */
.form{display:grid;gap:14px;margin-top:12px}
label{display:grid;gap:6px;font-weight:600}
input,textarea,select{width:100%;padding:12px;border-radius:12px;border:1px solid #222a3d;background:#0f1320;color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:2px solid #2a3f9c;border-color:#2a3f9c}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-weight:400}
.small{color:var(--dim);font-size:12px;margin-top:8px}

/* Footer */
.site-footer{padding:22px 0;border-top:1px solid #151826;background:#0a0c10}
.footer-grid{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* Responsive */
@media (max-width:1100px){
  .grid-3{grid-template-columns:repeat(2, minmax(0,1fr))}
}
@media (max-width:720px){
  .hero .wrap{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
}