/* ============================================================
   NAVIGATION
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem var(--section-x);
  backdrop-filter: blur(20px);
  background: rgba(6, 10, 15, 0.7);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
#navbar.scrolled { border-color: var(--border); }

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--accent); }

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.5rem 1.3rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  text-decoration: none;
  letter-spacing: 0.05em;
  cursor: none;
  transition: background var(--transition), color var(--transition);
}
.nav-cta:hover {
  background: var(--accent);
  color: var(--bg);
}

/* Hamburger (mobile) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: none;
  background: none;
  border: none;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text-dim);
  transition: all 0.3s;
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
}