:root{
  --bg: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --primary: #2563eb;
  --primary-contrast: #ffffff;
  --card: #f8fafc;
  --border: #e2e8f0;
  --shadow: 0 10px 30px rgba(2,6,23,0.06);
}
:root.dark{
  --bg: #0b1220;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --primary: #60a5fa;
  --primary-contrast: #0b1220;
  --card: #111827;
  --border: #1f2937;
  --shadow: 0 12px 40px rgba(0,0,0,0.4);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji','Segoe UI Emoji';background:var(--bg);color:var(--text);}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,0.6);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.dark .nav{ background: rgba(11,18,32,0.6); }
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:18px}
.brand img{width:32px;height:32px}
.menu{display:flex;align-items:center;gap:16px}
.menu a{padding:10px 12px;border-radius:12px}
.menu a.active, .menu a:hover{background:var(--card)}
.controls{display:flex;align-items:center;gap:8px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;border:1px solid var(--border);
  background:var(--card); box-shadow: var(--shadow); cursor:pointer;
  font-weight:600;
}
.btn.primary{background:var(--primary);color:var(--primary-contrast);border-color:transparent}
.btn.ghost{background:transparent; box-shadow:none}
select.lang{
  padding:8px 10px;border-radius:10px;border:1px solid var(--border);background:var(--card);color:var(--text)
}
.hero{
  position:relative; overflow:hidden; border-bottom:1px solid var(--border);
  background: radial-gradient(1200px 400px at 10% -20%, rgba(37,99,235,0.25), transparent 60%),
              radial-gradient(800px 300px at 90% 0%, rgba(99,102,241,0.20), transparent 60%);
}
.hero-inner{display:grid;grid-template-columns:1.1fr 0.9fr;gap:28px;align-items:center;padding:60px 0}
.hero h1{font-size:44px;line-height:1.1;margin:0 0 14px 0}
.hero p{font-size:18px;color:var(--muted);margin:0 0 22px 0}
.badge{display:inline-flex;gap:8px;align-items:center;background:var(--card);border:1px solid var(--border);padding:6px 10px;border-radius:999px;font-size:12px;color:var(--muted);margin-bottom:12px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:34px 0}
.card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:var(--shadow)}
.card h3{margin:8px 0 6px 0}
.gallery{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0}
.gallery img{width:100%;height:280px;border-radius:16px;border:1px solid var(--border);background:var(--bg)}
.section{padding:50px 0}
.kv{width:100%;height:420px;border-radius:18px;border:1px solid var(--border);overflow:hidden;display:block}
footer{border-top:1px solid var(--border);padding:24px 0;color:var(--muted)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
input, textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:var(--card);color:var(--text)}
label{font-weight:600;font-size:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
hr.sep{border:none;border-top:1px solid var(--border);margin:24px 0}
small.meta{color:var(--muted)}
@media (max-width: 900px){
  .hero-inner{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero h1{font-size:36px}
}