/* =========================================================
   NAV.CSS — Fixed frosted navigation bar
   ========================================================= */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 56px;
  background: rgba(10, 10, 15, 0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo mark */
.nav-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent-1);
  letter-spacing: 0.05em;
  text-decoration: none;
  border: 1px solid var(--color-accent-1);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  transition: background 0.2s ease, box-shadow 0.2s ease;
  line-height: 1.4;
}

.nav-logo:hover {
  background: var(--color-accent-glow);
  box-shadow: 0 0 12px var(--color-accent-glow);
}

/* Nav links group */
.nav-links {
  display: flex;
  gap: 0.25rem;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 0.4rem 0.9rem;
  border-radius: 4px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: var(--color-accent-2);
  background: rgba(6, 182, 212, 0.08);
}

/* Mobile */
@media (max-width: 480px) {
  .nav-inner {
    padding: 0 1rem;
  }

  .nav-logo {
    font-size: 0.85rem;
  }

  .nav-link {
    padding: 0.4rem 0.55rem;
    font-size: 0.72rem;
  }
}