/* ─── NAV ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px;
  height: 72px;
  background: rgba(3,7,15,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none;
}

.logo-mark {
  width: 38px; height: 38px;
  position: relative;
}

.logo-mark svg { width: 100%; height: 100%; }

.logo-text {
  display: flex; flex-direction: column; line-height: 1;
}

.logo-primary {
  font-family: 'Chakra Petch', monospace;
  font-size: 20px; font-weight: 700;
  color: var(--text-hi);
  letter-spacing: 0.12em;
}

.logo-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; font-weight: 400;
  color: var(--cyan);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.8;
  margin-top: 2px;
}

.nav-links {
  display: flex; gap: 40px; list-style: none;
}

.nav-links a {
  font-family: 'Chakra Petch', monospace;
  font-size: 12px; font-weight: 500;
  color: var(--text-mid);
  text-decoration: none;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--cyan); }

.nav-cta {
  display: flex; align-items: center; gap: 16px;
}