/* Единое меню сверху для всех страниц лендинга */
.topnav {
  position: sticky;
  top: 0;
  z-index: 999;
  display: flex;
  gap: 4px;
  padding: 10px 16px;
  background: rgba(10, 14, 24, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(96, 165, 250, 0.15);
  margin: -16px -16px 16px -16px;
  flex-wrap: wrap;
  align-items: center;
}
.topnav-brand {
  font-weight: 700;
  font-size: 15px;
  color: #e5e7eb;
  margin-right: 16px;
  letter-spacing: 0.3px;
}
.topnav-brand span { color: #60a5fa; }
.topnav a.topnav-link {
  padding: 8px 14px;
  border-radius: 8px;
  color: #cbd5e1;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all .15s ease;
  white-space: nowrap;
}
.topnav a.topnav-link:hover {
  background: rgba(96, 165, 250, 0.1);
  color: #e5e7eb;
}
.topnav a.topnav-link.active {
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.25), rgba(139, 92, 246, 0.25));
  color: #fff;
  box-shadow: 0 0 0 1px rgba(96, 165, 250, 0.3) inset;
}
.topnav-spacer { flex: 1; }
.topnav-bot {
  padding: 6px 12px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}
.topnav-bot:hover { opacity: 0.9; }

@media (max-width: 640px) {
  .topnav { gap: 2px; padding: 8px; }
  .topnav-brand { font-size: 14px; margin-right: 8px; width: 100%; margin-bottom: 4px; }
  .topnav a.topnav-link { padding: 6px 10px; font-size: 13px; }
  .topnav-bot { display: none; }
}
</content>
</invoke>