:root {
  --bg: #0b0f14;
  --surface: #111820;
  --text: #e6edf3;
  --muted: #a0aebb;
  --primary: #4da3ff;
  --primary-700: #2b7bd6;
  --accent: #7cf7d4;
  --container: 1120px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(180deg, var(--bg), #0c121a 40%, var(--bg));
  color: var(--text);
  line-height: 1.6;
}

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }

.site-header { position: sticky; top: 0; z-index: 10; background: rgba(11,15,20,0.8); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(255,255,255,0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 80px; padding: 12px 20px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.2px; }
.brand-name { font-size: 18px; }
.logo { width: 28px; height: 28px; }
.nav { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.nav a { color: var(--text); text-decoration: none; margin-left: 0; opacity: 0.9; }
.nav a:hover { opacity: 1; }
.nav .lang { padding: 6px 10px; border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; }

/* Responsive navigation */
@media (max-width: 1024px) {
  .header-inner { padding: 10px 20px; }
  .nav { gap: 8px; }
  .nav a { font-size: 14px; padding: 6px 10px !important; }
  .brand-name { font-size: 16px; }
}

@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; gap: 12px; padding: 12px 15px; }
  .nav { width: 100%; justify-content: center; gap: 6px; }
  .nav a { font-size: 13px; padding: 6px 8px !important; }
  .brand-name { display: none; }
}

.hero { padding: 96px 0 48px; background: linear-gradient(90deg, rgba(159, 185, 209, 1) 0%, rgba(255, 255, 255, 1) 100%); }
.hero h1 { font-size: clamp(32px, 4vw, 56px); line-height: 1.1; margin: 0 0 16px; color: #1a1a2e; }
.hero p { color: #4b5563; max-width: 720px; margin: 0 0 24px; font-size: 18px; }
.cta-group { display: flex; gap: 12px; flex-wrap: wrap; }

.btn { display: inline-block; padding: 12px 16px; border-radius: 10px; border: 1px solid rgba(0,0,0,0.16); color: #1a1a2e; text-decoration: none; background: rgba(255,255,255,0.5); }
.btn.primary { background: linear-gradient(180deg, #0066cc, #0052a3); border-color: transparent; color: white; font-weight: 700; }

.section { padding: 56px 0; }
.section.alt { background: linear-gradient(180deg, var(--surface), #0f151c); border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } }

.card { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: 16px; padding: 20px; }
.card h2 { margin-top: 0; }
.card ul { margin: 0; padding-left: 18px; color: var(--muted); }

.metric { text-align: center; padding: 20px; }
.metric h3 { font-size: 40px; margin: 0 0 8px; color: var(--accent); }
.metric p { margin: 0; color: var(--muted); }

.contact { max-width: 640px; }
.row { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
label { color: var(--muted); font-size: 14px; }
input, textarea { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.12); border-radius: 10px; color: var(--text); padding: 12px; }
input:focus, textarea:focus { outline: 2px solid rgba(77,163,255,0.35); border-color: rgba(77,163,255,0.5); }

.site-footer { border-top: 1px solid rgba(255,255,255,0.06); padding: 20px 0; background: rgba(0,0,0,0.2); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-nav a { color: var(--muted); text-decoration: none; margin-left: 14px; }
.footer-nav a:hover { color: var(--text); }