:root {
  --bg: #08111f;
  --panel: #101d31;
  --panel-2: #12243d;
  --text: #eef4ff;
  --muted: #b8c7e4;
  --line: rgba(255,255,255,0.1);
  --accent: #4da2ff;
  --accent-2: #7fc0ff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #07101d 0%, #0b1626 100%);
  color: var(--text);
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(8,17,31,0.88);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
}
.brand-wrap { display: flex; flex-direction: column; }
.brand { font-weight: 800; letter-spacing: 0.03em; }
.brand-sub { color: var(--muted); font-size: 0.85rem; }
.nav nav { display: flex; gap: 18px; color: var(--muted); }
.lang-switch, .video-toggle { display: flex; gap: 8px; }
.lang-btn, .video-btn {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
  font-weight: 700;
}
.lang-btn.active, .video-btn.active {
  background: linear-gradient(180deg, var(--accent) 0%, #2f84dd 100%);
  border-color: transparent;
}
.hero { padding: 64px 0 36px; }
.hero-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
}
.eyebrow {
  text-transform: uppercase;
  color: var(--accent-2);
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
}
h1, h2 { line-height: 1.1; margin: 0 0 14px; }
h1 { font-size: clamp(2rem, 5vw, 4rem); max-width: 13ch; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
.lead, .video-note, .card p, .download-card p, .contact-list p { color: var(--muted); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-weight: 700;
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent) 0%, #2f84dd 100%);
  color: white;
  border-color: transparent;
}
.btn-secondary { background: rgba(255,255,255,0.04); }
.hero-card, .card, .download-card, .contact-form {
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.24);
}
.hero-card { padding: 16px; }
.video-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.video-shell {
  border-radius: 16px;
  overflow: hidden;
  background: #000;
  aspect-ratio: 16 / 9;
}
video { width: 100%; height: 100%; display: block; }
.section { padding: 36px 0 64px; }
.section-dark {
  background: rgba(255,255,255,0.02);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.three-up { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.card { padding: 24px; }
.split { display: grid; gap: 24px; grid-template-columns: 1fr 1fr; align-items: start; }
.feature-list {
  display: grid;
  gap: 12px;
}
.feature-list div, .download-card {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
}
.download-grid { display: grid; gap: 18px; }
.contact-form { padding: 24px; display: grid; gap: 14px; }
label { display: grid; gap: 8px; color: var(--muted); }
input, textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 12px 14px;
  font: inherit;
}
.site-footer { padding: 20px 0 36px; }
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}
.mini-points {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.mini-points span {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
}
.lang-panel, .video-panel { display: none; }
.lang-panel.active, .video-panel.active { display: block; }
@media (max-width: 900px) {
  .hero-grid, .split, .three-up { grid-template-columns: 1fr; }
  .footer-row, .nav, .video-head { flex-direction: column; align-items: flex-start; }
  h1 { max-width: none; }
}