:root {
  --bg: #070b14;
  --bg-soft: #0d1321;
  --panel: rgba(10, 18, 34, 0.72);
  --line: rgba(135, 166, 255, 0.15);
  --text: #eef4ff;
  --muted: #9da8c7;
  --cyan: #54f3ff;
  --violet: #7f67ff;
  --blue: #3ca7ff;
  --accent: linear-gradient(135deg, #54f3ff 0%, #3ca7ff 38%, #7f67ff 100%);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.34);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(84, 243, 255, 0.08), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(127, 103, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #050811 0%, #07101d 52%, #050913 100%);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
.site-shell { position: relative; overflow: hidden; }
.bg-grid {
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 52%, transparent 92%);
  pointer-events: none; opacity: .28;
}
.bg-glow { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .18; pointer-events: none; }
.bg-glow-a { width: 520px; height: 520px; background: #54f3ff; left: -140px; top: 90px; }
.bg-glow-b { width: 460px; height: 460px; background: #7f67ff; right: -140px; top: 280px; }

.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.glass-card {
  background: linear-gradient(180deg, rgba(16, 25, 46, 0.88), rgba(9, 15, 28, 0.8));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.topbar {
  position: sticky; top: 0; z-index: 30; padding: 18px 0;
  background: rgba(6,10,18,.64); backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.topbar-inner { display:flex; align-items:center; justify-content:space-between; gap:20px; }
.brand { display:inline-flex; align-items:center; gap:12px; font-weight:800; letter-spacing:.02em; }
.brand-mark {
  width:42px; height:42px; border-radius:14px; display:grid; place-items:center;
  color:#04111c; background:var(--accent); box-shadow:0 12px 30px rgba(84,243,255,.18);
}
.brand-text { font-size:1.02rem; }
.desktop-nav { display:flex; align-items:center; gap:26px; }
.desktop-nav a, .footer-links a, .ghost-btn, .lang-select, .mobile-nav a {
  color: var(--muted); transition: color .2s ease, border-color .2s ease, transform .2s ease;
}
.desktop-nav a:hover, .footer-links a:hover, .ghost-btn:hover, .lang-select:hover, .mobile-nav a:hover { color: var(--text); }

.topbar-actions { display:flex; align-items:center; gap:12px; }
.lang-select, .ghost-btn, .primary-btn, .secondary-btn, .menu-btn {
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 18px; border-radius:999px; border:1px solid rgba(255,255,255,.09); font-weight:600;
}
.lang-select, .ghost-btn, .secondary-btn, .menu-btn { background: rgba(255,255,255,.03); }
.lang-select { color: var(--text); min-width: 88px; }
.primary-btn {
  background: var(--accent); color: #05111d; border-color: transparent;
  box-shadow: 0 16px 36px rgba(84,243,255,.2);
}
.primary-btn:hover, .secondary-btn:hover, .ghost-btn:hover, .lang-select:hover, .menu-btn:hover { transform: translateY(-1px); }
.menu-btn { display:none; color: var(--text); font-size: 1rem; }

.mobile-nav {
  display:none; flex-direction:column; gap:12px;
  margin: 12px auto 0; width: min(var(--container), calc(100% - 40px));
  padding: 18px; border-radius: 22px; background: rgba(10,18,34,.94);
  border: 1px solid var(--line);
}
.mobile-nav.open { display:flex; }

.hero { padding: 92px 0 48px; }
.hero-grid { display:grid; grid-template-columns:1.06fr .94fr; gap:36px; align-items:center; }
.eyebrow, .section-label, .card-chip, .product-badge, .mini-title {
  display:inline-flex; align-items:center; gap:10px; padding:8px 14px;
  border:1px solid rgba(84,243,255,.18); border-radius:999px; color:#c7f9ff;
  background: rgba(84,243,255,.06); font-size:.88rem; font-weight:600;
}
.hero h1, .section-heading h2, .section-intro h2, .access-wrap h2, .cta-wrap h2 {
  margin:18px 0 18px; line-height:1.02; letter-spacing:-.045em;
}
.hero h1 { font-size: clamp(2.9rem, 7vw, 5.4rem); max-width: 11ch; }
.hero-lead, .section-copy, .section-heading p, .access-wrap p, .cta-wrap p, .footer p,
.platform-card p, .roadmap-card p, .product-card p, .why-card p, .hero-card p, .branch-column p {
  color: var(--muted); line-height:1.72;
}
.hero-actions { display:flex; flex-wrap:wrap; gap:14px; margin:30px 0 34px; }
.hero-stats { display:grid; grid-template-columns: repeat(3,1fr); gap:14px; }
.hero-stats article, .roadmap-card, .platform-card, .product-card, .why-card, .branch-column {
  border-radius: var(--radius-lg); padding:22px;
}
.hero-stats article {
  background: rgba(255,255,255,.03); border:1px solid rgba(255,255,255,.05);
}
.hero-stats strong, .roadmap-card strong {
  display:block; font-size:1.6rem; margin-bottom:10px;
  background: var(--accent); -webkit-background-clip:text; background-clip:text; color: transparent;
}
.hero-panel { display:grid; gap:18px; }
.hero-card { border-radius: var(--radius-xl); padding:28px; }
.hero-card-main { min-height: 290px; }
.hero-card h2 { margin:18px 0 14px; font-size:1.6rem; }
.signal-list { margin-top:20px; display:grid; gap:10px; color:#d7e7ff; }
.hero-card-side ul, .product-card ul, .branch-column ul { margin:16px 0 0; padding-left:18px; color:#d7e7ff; display:grid; gap:10px; }
.section { padding: 42px 0 44px; }
.section-intro { padding-top: 26px; }
.section-intro-grid { display:grid; grid-template-columns: .9fr 1.1fr; gap:24px; align-items:start; }
.section-heading { margin-bottom: 24px; max-width: 860px; }
.section-heading h2, .section-intro h2, .access-wrap h2, .cta-wrap h2 { font-size: clamp(2rem, 5vw, 3.15rem); }

.product-grid, .platform-grid, .roadmap-grid, .why-grid, .branch-grid {
  display:grid; gap:18px;
}
.product-grid { grid-template-columns: repeat(3,1fr); }
.platform-grid, .roadmap-grid, .why-grid, .branch-grid { grid-template-columns: repeat(4,1fr); }
.product-card h3, .platform-card h3, .roadmap-card h3, .why-card h3, .branch-column h3 { margin:18px 0 12px; font-size:1.22rem; }
.product-featured {
  background:
    linear-gradient(180deg, rgba(16,25,46,.94), rgba(9,15,28,.86)),
    radial-gradient(circle at top right, rgba(84,243,255,.12), transparent 38%);
}
.product-badge.alt { background: rgba(127,103,255,.09); border-color: rgba(127,103,255,.16); color: #ddd7ff; }

.branch-column h3 { margin-top: 0; }
.branch-column ul { margin-top: 12px; }

.access-wrap, .cta-wrap {
  padding: 34px; border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(16,25,46,.92), rgba(9,15,28,.84)),
    radial-gradient(circle at top left, rgba(84,243,255,.08), transparent 38%);
}
.access-points { display:flex; flex-wrap:wrap; gap:12px; margin-top:24px; }
.access-points span {
  padding:12px 16px; border-radius:999px; background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.07); color:#d7e7ff;
}

.footer { padding: 30px 0 50px; }
.footer-inner {
  display:flex; justify-content:space-between; gap:30px; align-items:flex-start;
  padding-top: 28px; border-top:1px solid rgba(255,255,255,.06);
}
.footer-brand { margin-bottom: 14px; }
.footer p { max-width: 520px; }
.footer-links { display:grid; gap:12px; min-width: 140px; }

@media (max-width: 1080px) {
  .hero-grid, .section-intro-grid, .platform-grid, .roadmap-grid, .why-grid, .branch-grid, .product-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 820px) {
  .desktop-nav, .topbar-actions .ghost-btn { display:none; }
  .menu-btn { display:inline-flex; }
  .hero { padding-top: 64px; }
  .hero-grid, .section-intro-grid, .platform-grid, .roadmap-grid, .why-grid, .branch-grid, .product-grid, .hero-stats, .footer-inner {
    grid-template-columns: 1fr;
  }
  .topbar-inner { gap: 12px; }
  .topbar-actions { margin-left: auto; }
  .lang-select { min-width: 72px; padding: 10px 12px; }
  .hero h1 { max-width: none; }
  .access-wrap, .cta-wrap, .hero-card, .product-card, .platform-card, .roadmap-card, .why-card, .branch-column { padding: 20px; }
}

.lang-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  color-scheme: dark;
  background-color: rgba(10, 18, 34, 0.96);
  color: #eef4ff;
}

.lang-select option {
  background: #0d1321;
  color: #eef4ff;
}

.lang-select:focus {
  outline: none;
  border-color: rgba(84, 243, 255, 0.45);
  box-shadow: 0 0 0 3px rgba(84, 243, 255, 0.12);
}