:root {
  --jettlab-header-bg: #0b0b0d;
  --jettlab-header-text: #f2f0ea;
  --jettlab-header-muted: #a8a5ad;
  --jettlab-header-line: rgba(255, 255, 255, 0.12);
  --jettlab-header-accent: #b9ff17;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-sizing: border-box;
  padding: 18px clamp(18px, 4vw, 52px);
  border-bottom: 1px solid var(--jettlab-header-line);
  background: rgba(11, 11, 13, 0.82);
  color: var(--jettlab-header-text);
  font-family: Inter, Manrope, Arial, sans-serif;
  letter-spacing: 0;
  backdrop-filter: blur(18px);
}

.site-header a {
  color: inherit;
}

.brand {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: 26px;
  color: var(--jettlab-header-muted);
  font-size: 14px;
}

.nav a,
.header-cta {
  text-decoration: none;
}

.nav a:hover,
.header-cta:hover {
  color: #fff;
}

.header-cta {
  color: var(--jettlab-header-accent);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

@media (max-width: 940px) {
  .nav {
    display: none;
  }
}

@media (max-width: 620px) {
  .site-header {
    gap: 12px;
    background: rgba(11, 11, 13, 0.96);
    backdrop-filter: none;
  }

  .header-cta {
    font-size: 13px;
  }
}